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/****************************************************************************
*
* Copyright (c) 2012, 2013 PX4 Development Team. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
* 3. Neither the name PX4 nor the names of its contributors may be
* used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*
****************************************************************************/
/**
* @file KalmanNav.cpp
*
* Kalman filter navigation code
*/
#include <poll.h>
#include "KalmanNav.hpp"
#include <systemlib/err.h>
#include <geo/geo.h>
// constants
// Titterton pg. 52
static const float omega = 7.2921150e-5f; // earth rotation rate, rad/s
static const float R0 = 6378137.0f; // earth radius, m
static const float g0 = 9.806f; // standard gravitational accel. m/s^2
static const int8_t ret_ok = 0; // no error in function
static const int8_t ret_error = -1; // error occurred
KalmanNav::KalmanNav(SuperBlock *parent, const char *name) :
SuperBlock(parent, name),
// subscriptions
_sensors(&getSubscriptions(), ORB_ID(sensor_combined), 5), // limit to 200 Hz
_gps(&getSubscriptions(), ORB_ID(vehicle_gps_position), 100), // limit to 10 Hz
_param_update(&getSubscriptions(), ORB_ID(parameter_update), 1000), // limit to 1 Hz
// publications
_pos(&getPublications(), ORB_ID(vehicle_global_position)),
_localPos(&getPublications(), ORB_ID(vehicle_local_position)),
_att(&getPublications(), ORB_ID(vehicle_attitude)),
// timestamps
_pubTimeStamp(hrt_absolute_time()),
_predictTimeStamp(hrt_absolute_time()),
_attTimeStamp(hrt_absolute_time()),
_outTimeStamp(hrt_absolute_time()),
// frame count
_navFrames(0),
// miss counts
_miss(0),
// accelerations
fN(0), fE(0), fD(0),
// state
phi(0), theta(0), psi(0),
vN(0), vE(0), vD(0),
lat(0), lon(0), alt(0),
lat0(0), lon0(0), alt0(0),
// parameters for ground station
_vGyro(this, "V_GYRO"),
_vAccel(this, "V_ACCEL"),
_rMag(this, "R_MAG"),
_rGpsVel(this, "R_GPS_VEL"),
_rGpsPos(this, "R_GPS_POS"),
_rGpsAlt(this, "R_GPS_ALT"),
_rPressAlt(this, "R_PRESS_ALT"),
_rAccel(this, "R_ACCEL"),
_magDip(this, "ENV_MAG_DIP"),
_magDec(this, "ENV_MAG_DEC"),
_g(this, "ENV_G"),
_faultPos(this, "FAULT_POS"),
_faultAtt(this, "FAULT_ATT"),
_attitudeInitialized(false),
_positionInitialized(false),
_attitudeInitCounter(0)
{
using namespace math;
memset(&ref, 0, sizeof(ref));
F.zero();
G.zero();
V.zero();
HAtt.zero();
RAtt.zero();
HPos.zero();
RPos.zero();
// initial state covariance matrix
P0.identity();
P0 *= 0.01f;
P = P0;
// initial state
phi = 0.0f;
theta = 0.0f;
psi = 0.0f;
vN = 0.0f;
vE = 0.0f;
vD = 0.0f;
lat = 0.0f;
lon = 0.0f;
alt = 0.0f;
// initialize rotation quaternion with a single raw sensor measurement
_sensors.update();
q = init(
_sensors.accelerometer_m_s2[0],
_sensors.accelerometer_m_s2[1],
_sensors.accelerometer_m_s2[2],
_sensors.magnetometer_ga[0],
_sensors.magnetometer_ga[1],
_sensors.magnetometer_ga[2]);
// initialize dcm
C_nb = q.to_dcm();
// HPos is constant
HPos(0, 3) = 1.0f;
HPos(1, 4) = 1.0f;
HPos(2, 6) = 1.0e7f * M_RAD_TO_DEG_F;
HPos(3, 7) = 1.0e7f * M_RAD_TO_DEG_F;
HPos(4, 8) = 1.0f;
HPos(5, 8) = 1.0f;
// initialize all parameters
updateParams();
}
math::Quaternion KalmanNav::init(float ax, float ay, float az, float mx, float my, float mz)
{
float initialRoll, initialPitch;
float cosRoll, sinRoll, cosPitch, sinPitch;
float magX, magY;
float initialHdg, cosHeading, sinHeading;
initialRoll = atan2(-ay, -az);
initialPitch = atan2(ax, -az);
cosRoll = cosf(initialRoll);
sinRoll = sinf(initialRoll);
cosPitch = cosf(initialPitch);
sinPitch = sinf(initialPitch);
magX = mx * cosPitch + my * sinRoll * sinPitch + mz * cosRoll * sinPitch;
magY = my * cosRoll - mz * sinRoll;
initialHdg = atan2f(-magY, magX);
cosRoll = cosf(initialRoll * 0.5f);
sinRoll = sinf(initialRoll * 0.5f);
cosPitch = cosf(initialPitch * 0.5f);
sinPitch = sinf(initialPitch * 0.5f);
cosHeading = cosf(initialHdg * 0.5f);
sinHeading = sinf(initialHdg * 0.5f);
float q0 = cosRoll * cosPitch * cosHeading + sinRoll * sinPitch * sinHeading;
float q1 = sinRoll * cosPitch * cosHeading - cosRoll * sinPitch * sinHeading;
float q2 = cosRoll * sinPitch * cosHeading + sinRoll * cosPitch * sinHeading;
float q3 = cosRoll * cosPitch * sinHeading - sinRoll * sinPitch * cosHeading;
return math::Quaternion(q0, q1, q2, q3);
}
void KalmanNav::update()
{
using namespace math;
struct pollfd fds[1];
fds[0].fd = _sensors.getHandle();
fds[0].events = POLLIN;
// poll for new data
int ret = poll(fds, 1, 1000);
if (ret < 0) {
// XXX this is seriously bad - should be an emergency
return;
} else if (ret == 0) { // timeout
return;
}
// get new timestamp
uint64_t newTimeStamp = hrt_absolute_time();
// check updated subscriptions
if (_param_update.updated()) updateParams();
bool gpsUpdate = _gps.updated();
bool sensorsUpdate = _sensors.updated();
// get new information from subscriptions
// this clears update flag
updateSubscriptions();
// initialize attitude when sensors online
if (!_attitudeInitialized && sensorsUpdate) {
if (correctAtt() == ret_ok) _attitudeInitCounter++;
if (_attitudeInitCounter > 100) {
warnx("initialized EKF attitude");
warnx("phi: %8.4f, theta: %8.4f, psi: %8.4f",
double(phi), double(theta), double(psi));
_attitudeInitialized = true;
}
}
// initialize position when gps received
if (!_positionInitialized &&
_attitudeInitialized && // wait for attitude first
gpsUpdate &&
_gps.fix_type > 2
//&& _gps.counter_pos_valid > 10
) {
vN = _gps.vel_n_m_s;
vE = _gps.vel_e_m_s;
vD = _gps.vel_d_m_s;
setLatDegE7(_gps.lat);
setLonDegE7(_gps.lon);
setAltE3(_gps.alt);
// set reference position for
// local position
lat0 = lat;
lon0 = lon;
alt0 = alt;
map_projection_init(&ref, lat0, lon0);
_positionInitialized = true;
warnx("initialized EKF state with GPS");
warnx("vN: %8.4f, vE: %8.4f, vD: %8.4f, lat: %8.4f, lon: %8.4f, alt: %8.4f",
double(vN), double(vE), double(vD),
lat, lon, double(alt));
}
// prediction step
// using sensors timestamp so we can account for packet lag
float dt = (_sensors.timestamp - _predictTimeStamp) / 1.0e6f;
//printf("dt: %15.10f\n", double(dt));
_predictTimeStamp = _sensors.timestamp;
// don't predict if time greater than a second
if (dt < 1.0f) {
predictState(dt);
predictStateCovariance(dt);
// count fast frames
_navFrames += 1;
}
// count times 100 Hz rate isn't met
if (dt > 0.01f) _miss++;
// gps correction step
if (_positionInitialized && gpsUpdate) {
correctPos();
}
// attitude correction step
if (_attitudeInitialized // initialized
&& sensorsUpdate // new data
&& _sensors.timestamp - _attTimeStamp > 1e6 / 50 // 50 Hz
) {
_attTimeStamp = _sensors.timestamp;
correctAtt();
}
// publication
if (newTimeStamp - _pubTimeStamp > 1e6 / 50) { // 50 Hz
_pubTimeStamp = newTimeStamp;
updatePublications();
}
// output
if (newTimeStamp - _outTimeStamp > 10e6) { // 0.1 Hz
_outTimeStamp = newTimeStamp;
//printf("nav: %4d Hz, miss #: %4d\n",
// _navFrames / 10, _miss / 10);
_navFrames = 0;
_miss = 0;
}
}
void KalmanNav::updatePublications()
{
using namespace math;
// global position publication
_pos.timestamp = _pubTimeStamp;
_pos.time_gps_usec = _gps.timestamp_position;
_pos.lat = lat * M_RAD_TO_DEG;
_pos.lon = lon * M_RAD_TO_DEG;
_pos.alt = float(alt);
_pos.vel_n = vN;
_pos.vel_e = vE;
_pos.vel_d = vD;
_pos.yaw = psi;
// local position publication
float x;
float y;
bool landed = alt < (alt0 + 0.1); // XXX improve?
map_projection_project(&ref, lat, lon, &x, &y);
_localPos.timestamp = _pubTimeStamp;
_localPos.xy_valid = true;
_localPos.z_valid = true;
_localPos.v_xy_valid = true;
_localPos.v_z_valid = true;
_localPos.x = x;
_localPos.y = y;
_localPos.z = alt0 - alt;
_localPos.vx = vN;
_localPos.vy = vE;
_localPos.vz = vD;
_localPos.yaw = psi;
_localPos.xy_global = true;
_localPos.z_global = true;
_localPos.ref_timestamp = _pubTimeStamp;
_localPos.ref_lat = lat * M_RAD_TO_DEG;
_localPos.ref_lon = lon * M_RAD_TO_DEG;
_localPos.ref_alt = 0;
_localPos.landed = landed;
// attitude publication
_att.timestamp = _pubTimeStamp;
_att.roll = phi;
_att.pitch = theta;
_att.yaw = psi;
_att.rollspeed = _sensors.gyro_rad_s[0];
_att.pitchspeed = _sensors.gyro_rad_s[1];
_att.yawspeed = _sensors.gyro_rad_s[2];
// TODO, add gyro offsets to filter
_att.rate_offsets[0] = 0.0f;
_att.rate_offsets[1] = 0.0f;
_att.rate_offsets[2] = 0.0f;
for (int i = 0; i < 3; i++) for (int j = 0; j < 3; j++)
_att.R[i][j] = C_nb(i, j);
for (int i = 0; i < 4; i++) _att.q[i] = q(i);
_att.R_valid = true;
_att.q_valid = true;
// selectively update publications,
// do NOT call superblock do-all method
if (_positionInitialized) {
_pos.update();
_localPos.update();
}
if (_attitudeInitialized)
_att.update();
}
int KalmanNav::predictState(float dt)
{
using namespace math;
// trig
float sinL = sinf(lat);
float cosL = cosf(lat);
float cosLSing = cosf(lat);
// prevent singularity
if (fabsf(cosLSing) < 0.01f) {
if (cosLSing > 0) cosLSing = 0.01;
else cosLSing = -0.01;
}
// attitude prediction
if (_attitudeInitialized) {
Vector<3> w(_sensors.gyro_rad_s);
// attitude
q = q + q.derivative(w) * dt;
// renormalize quaternion if needed
if (fabsf(q.length() - 1.0f) > 1e-4f) {
q.normalize();
}
// C_nb update
C_nb = q.to_dcm();
// euler update
Vector<3> euler = C_nb.to_euler();
phi = euler.data[0];
theta = euler.data[1];
psi = euler.data[2];
// specific acceleration in nav frame
Vector<3> accelB(_sensors.accelerometer_m_s2);
Vector<3> accelN = C_nb * accelB;
fN = accelN(0);
fE = accelN(1);
fD = accelN(2);
}
// position prediction
if (_positionInitialized) {
// neglects angular deflections in local gravity
// see Titerton pg. 70
float R = R0 + float(alt);
float LDot = vN / R;
float lDot = vE / (cosLSing * R);
float rotRate = 2 * omega + lDot;
// XXX position prediction using speed
float vNDot = fN - vE * rotRate * sinL +
vD * LDot;
float vDDot = fD - vE * rotRate * cosL -
vN * LDot + _g.get();
float vEDot = fE + vN * rotRate * sinL +
vDDot * rotRate * cosL;
// rectangular integration
vN += vNDot * dt;
vE += vEDot * dt;
vD += vDDot * dt;
lat += double(LDot * dt);
lon += double(lDot * dt);
alt += double(-vD * dt);
}
return ret_ok;
}
int KalmanNav::predictStateCovariance(float dt)
{
using namespace math;
// trig
float sinL = sinf(lat);
float cosL = cosf(lat);
float cosLSq = cosL * cosL;
float tanL = tanf(lat);
// prepare for matrix
float R = R0 + float(alt);
float RSq = R * R;
// F Matrix
// Titterton pg. 291
F(0, 1) = -(omega * sinL + vE * tanL / R);
F(0, 2) = vN / R;
F(0, 4) = 1.0f / R;
F(0, 6) = -omega * sinL;
F(0, 8) = -vE / RSq;
F(1, 0) = omega * sinL + vE * tanL / R;
F(1, 2) = omega * cosL + vE / R;
F(1, 3) = -1.0f / R;
F(1, 8) = vN / RSq;
F(2, 0) = -vN / R;
F(2, 1) = -omega * cosL - vE / R;
F(2, 4) = -tanL / R;
F(2, 6) = -omega * cosL - vE / (R * cosLSq);
F(2, 8) = vE * tanL / RSq;
F(3, 1) = -fD;
F(3, 2) = fE;
F(3, 3) = vD / R;
F(3, 4) = -2 * (omega * sinL + vE * tanL / R);
F(3, 5) = vN / R;
F(3, 6) = -vE * (2 * omega * cosL + vE / (R * cosLSq));
F(3, 8) = (vE * vE * tanL - vN * vD) / RSq;
F(4, 0) = fD;
F(4, 2) = -fN;
F(4, 3) = 2 * omega * sinL + vE * tanL / R;
F(4, 4) = (vN * tanL + vD) / R;
F(4, 5) = 2 * omega * cosL + vE / R;
F(4, 6) = 2 * omega * (vN * cosL - vD * sinL) +
vN * vE / (R * cosLSq);
F(4, 8) = -vE * (vN * tanL + vD) / RSq;
F(5, 0) = -fE;
F(5, 1) = fN;
F(5, 3) = -2 * vN / R;
F(5, 4) = -2 * (omega * cosL + vE / R);
F(5, 6) = 2 * omega * vE * sinL;
F(5, 8) = (vN * vN + vE * vE) / RSq;
F(6, 3) = 1 / R;
F(6, 8) = -vN / RSq;
F(7, 4) = 1 / (R * cosL);
F(7, 6) = vE * tanL / (R * cosL);
F(7, 8) = -vE / (cosL * RSq);
F(8, 5) = -1;
// G Matrix
// Titterton pg. 291
G(0, 0) = -C_nb(0, 0);
G(0, 1) = -C_nb(0, 1);
G(0, 2) = -C_nb(0, 2);
G(1, 0) = -C_nb(1, 0);
G(1, 1) = -C_nb(1, 1);
G(1, 2) = -C_nb(1, 2);
G(2, 0) = -C_nb(2, 0);
G(2, 1) = -C_nb(2, 1);
G(2, 2) = -C_nb(2, 2);
G(3, 3) = C_nb(0, 0);
G(3, 4) = C_nb(0, 1);
G(3, 5) = C_nb(0, 2);
G(4, 3) = C_nb(1, 0);
G(4, 4) = C_nb(1, 1);
G(4, 5) = C_nb(1, 2);
G(5, 3) = C_nb(2, 0);
G(5, 4) = C_nb(2, 1);
G(5, 5) = C_nb(2, 2);
// continuous prediction equations
// for discrete time EKF
// http://en.wikipedia.org/wiki/Extended_Kalman_filter
P = P + (F * P + P * F.transposed() + G * V * G.transposed()) * dt;
return ret_ok;
}
int KalmanNav::correctAtt()
{
using namespace math;
// trig
float cosPhi = cosf(phi);
float cosTheta = cosf(theta);
// float cosPsi = cosf(psi);
float sinPhi = sinf(phi);
float sinTheta = sinf(theta);
// float sinPsi = sinf(psi);
// mag predicted measurement
// choosing some typical magnetic field properties,
// TODO dip/dec depend on lat/ lon/ time
//float dip = _magDip.get() / M_RAD_TO_DEG_F; // dip, inclination with level
float dec = _magDec.get() / M_RAD_TO_DEG_F; // declination, clockwise rotation from north
// compensate roll and pitch, but not yaw
// XXX take the vectors out of the C_nb matrix to avoid singularities
math::Matrix<3,3> C_rp;
C_rp.from_euler(phi, theta, 0.0f);//C_nb.transposed();
// mag measurement
Vector<3> magBody(_sensors.magnetometer_ga);
// transform to earth frame
Vector<3> magNav = C_rp * magBody;
// calculate error between estimate and measurement
// apply declination correction for true heading as well.
float yMag = -atan2f(magNav(1),magNav(0)) - psi - dec;
if (yMag > M_PI_F) yMag -= 2*M_PI_F;
if (yMag < -M_PI_F) yMag += 2*M_PI_F;
// accel measurement
Vector<3> zAccel(_sensors.accelerometer_m_s2);
float accelMag = zAccel.length();
zAccel.normalize();
// ignore accel correction when accel mag not close to g
Matrix<4,4> RAttAdjust = RAtt;
bool ignoreAccel = fabsf(accelMag - _g.get()) > 1.1f;
if (ignoreAccel) {
RAttAdjust(1, 1) = 1.0e10;
RAttAdjust(2, 2) = 1.0e10;
RAttAdjust(3, 3) = 1.0e10;
} else {
//printf("correcting attitude with accel\n");
}
// accel predicted measurement
Vector<3> zAccelHat = (C_nb.transposed() * Vector<3>(0, 0, -_g.get())).normalized();
// calculate residual
Vector<4> y(yMag, zAccel(0) - zAccelHat(0), zAccel(1) - zAccelHat(1), zAccel(2) - zAccelHat(2));
// HMag
HAtt(0, 2) = 1;
// HAccel
HAtt(1, 1) = cosTheta;
HAtt(2, 0) = -cosPhi * cosTheta;
HAtt(2, 1) = sinPhi * sinTheta;
HAtt(3, 0) = sinPhi * cosTheta;
HAtt(3, 1) = cosPhi * sinTheta;
// compute correction
// http://en.wikipedia.org/wiki/Extended_Kalman_filter
Matrix<4, 4> S = HAtt * P * HAtt.transposed() + RAttAdjust; // residual covariance
Matrix<9, 4> K = P * HAtt.transposed() * S.inversed();
Vector<9> xCorrect = K * y;
// check correciton is sane
for (size_t i = 0; i < xCorrect.get_size(); i++) {
float val = xCorrect(i);
if (isnan(val) || isinf(val)) {
// abort correction and return
warnx("numerical failure in att correction");
// reset P matrix to P0
P = P0;
return ret_error;
}
}
// correct state
if (!ignoreAccel) {
phi += xCorrect(PHI);
theta += xCorrect(THETA);
}
psi += xCorrect(PSI);
// attitude also affects nav velocities
if (_positionInitialized) {
vN += xCorrect(VN);
vE += xCorrect(VE);
vD += xCorrect(VD);
}
// update state covariance
// http://en.wikipedia.org/wiki/Extended_Kalman_filter
P = P - K * HAtt * P;
// fault detection
float beta = y * (S.inversed() * y);
if (beta > _faultAtt.get()) {
warnx("fault in attitude: beta = %8.4f", (double)beta);
warnx("y:"); y.print();
}
// update quaternions from euler
// angle correction
q.from_euler(phi, theta, psi);
return ret_ok;
}
int KalmanNav::correctPos()
{
using namespace math;
// residual
Vector<6> y;
y(0) = _gps.vel_n_m_s - vN;
y(1) = _gps.vel_e_m_s - vE;
y(2) = double(_gps.lat) - double(lat) * 1.0e7 * M_RAD_TO_DEG;
y(3) = double(_gps.lon) - double(lon) * 1.0e7 * M_RAD_TO_DEG;
y(4) = _gps.alt / 1.0e3f - alt;
y(5) = _sensors.baro_alt_meter - alt;
// compute correction
// http://en.wikipedia.org/wiki/Extended_Kalman_filter
Matrix<6,6> S = HPos * P * HPos.transposed() + RPos; // residual covariance
Matrix<9,6> K = P * HPos.transposed() * S.inversed();
Vector<9> xCorrect = K * y;
// check correction is sane
for (size_t i = 0; i < xCorrect.get_size(); i++) {
float val = xCorrect(i);
if (!isfinite(val)) {
// abort correction and return
warnx("numerical failure in gps correction");
// fallback to GPS
vN = _gps.vel_n_m_s;
vE = _gps.vel_e_m_s;
vD = _gps.vel_d_m_s;
setLatDegE7(_gps.lat);
setLonDegE7(_gps.lon);
setAltE3(_gps.alt);
// reset P matrix to P0
P = P0;
return ret_error;
}
}
// correct state
vN += xCorrect(VN);
vE += xCorrect(VE);
vD += xCorrect(VD);
lat += double(xCorrect(LAT));
lon += double(xCorrect(LON));
alt += xCorrect(ALT);
// update state covariance
// http://en.wikipedia.org/wiki/Extended_Kalman_filter
P = P - K * HPos * P;
// fault detetcion
float beta = y * (S.inversed() * y);
static int counter = 0;
if (beta > _faultPos.get() && (counter % 10 == 0)) {
warnx("fault in gps: beta = %8.4f", (double)beta);
warnx("Y/N: vN: %8.4f, vE: %8.4f, lat: %8.4f, lon: %8.4f, alt: %8.4f, baro: %8.4f",
double(y(0) / sqrtf(RPos(0, 0))),
double(y(1) / sqrtf(RPos(1, 1))),
double(y(2) / sqrtf(RPos(2, 2))),
double(y(3) / sqrtf(RPos(3, 3))),
double(y(4) / sqrtf(RPos(4, 4))),
double(y(5) / sqrtf(RPos(5, 5))));
}
counter++;
return ret_ok;
}
void KalmanNav::updateParams()
{
using namespace math;
using namespace control;
SuperBlock::updateParams();
// gyro noise
V(0, 0) = _vGyro.get(); // gyro x, rad/s
V(1, 1) = _vGyro.get(); // gyro y
V(2, 2) = _vGyro.get(); // gyro z
// accel noise
V(3, 3) = _vAccel.get(); // accel x, m/s^2
V(4, 4) = _vAccel.get(); // accel y
V(5, 5) = _vAccel.get(); // accel z
// magnetometer noise
float noiseMin = 1e-6f;
float noiseMagSq = _rMag.get() * _rMag.get();
if (noiseMagSq < noiseMin) noiseMagSq = noiseMin;
RAtt(0, 0) = noiseMagSq; // normalized direction
// accelerometer noise
float noiseAccelSq = _rAccel.get() * _rAccel.get();
// bound noise to prevent singularities
if (noiseAccelSq < noiseMin) noiseAccelSq = noiseMin;
RAtt(1, 1) = noiseAccelSq; // normalized direction
RAtt(2, 2) = noiseAccelSq;
RAtt(3, 3) = noiseAccelSq;
// gps noise
float R = R0 + float(alt);
float cosLSing = cosf(lat);
// prevent singularity
if (fabsf(cosLSing) < 0.01f) {
if (cosLSing > 0) cosLSing = 0.01;
else cosLSing = -0.01;
}
float noiseVel = _rGpsVel.get();
float noiseLatDegE7 = 1.0e7f * M_RAD_TO_DEG_F * _rGpsPos.get() / R;
float noiseLonDegE7 = noiseLatDegE7 / cosLSing;
float noiseGpsAlt = _rGpsAlt.get();
float noisePressAlt = _rPressAlt.get();
// bound noise to prevent singularities
if (noiseVel < noiseMin) noiseVel = noiseMin;
if (noiseLatDegE7 < noiseMin) noiseLatDegE7 = noiseMin;
if (noiseLonDegE7 < noiseMin) noiseLonDegE7 = noiseMin;
if (noiseGpsAlt < noiseMin) noiseGpsAlt = noiseMin;
if (noisePressAlt < noiseMin) noisePressAlt = noiseMin;
RPos(0, 0) = noiseVel * noiseVel; // vn
RPos(1, 1) = noiseVel * noiseVel; // ve
RPos(2, 2) = noiseLatDegE7 * noiseLatDegE7; // lat
RPos(3, 3) = noiseLonDegE7 * noiseLonDegE7; // lon
RPos(4, 4) = noiseGpsAlt * noiseGpsAlt; // h
RPos(5, 5) = noisePressAlt * noisePressAlt; // h
// XXX, note that RPos depends on lat, so updateParams should
// be called if lat changes significantly
}
src/modules/att_pos_estimator_ekf/KalmanNav.hpp
-194
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@@ -1,194 +0,0 @@
/****************************************************************************
*
* Copyright (c) 2012, 2013 PX4 Development Team. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
* 3. Neither the name PX4 nor the names of its contributors may be
* used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*
****************************************************************************/
/**
* @file KalmanNav.hpp
*
* kalman filter navigation code
*/
#pragma once
//#define MATRIX_ASSERT
//#define VECTOR_ASSERT
#include <nuttx/config.h>
#include <mathlib/mathlib.h>
#include <controllib/blocks.hpp>
#include <controllib/block/BlockParam.hpp>
#include <uORB/Subscription.hpp>
#include <uORB/Publication.hpp>
#include <lib/geo/geo.h>
#include <uORB/topics/vehicle_attitude.h>
#include <uORB/topics/vehicle_global_position.h>
#include <uORB/topics/vehicle_local_position.h>
#include <uORB/topics/sensor_combined.h>
#include <uORB/topics/vehicle_gps_position.h>
#include <uORB/topics/parameter_update.h>
#include <drivers/drv_accel.h>
#include <drivers/drv_gyro.h>
#include <drivers/drv_mag.h>
#include <drivers/drv_hrt.h>
#include <poll.h>
#include <unistd.h>
/**
* Kalman filter navigation class
* http://en.wikipedia.org/wiki/Extended_Kalman_filter
* Discrete-time extended Kalman filter
*/
class KalmanNav : public control::SuperBlock
{
public:
/**
* Constructor
*/
KalmanNav(SuperBlock *parent, const char *name);
/**
* Deconstuctor
*/
virtual ~KalmanNav() {};
math::Quaternion init(float ax, float ay, float az, float mx, float my, float mz);
/**
* The main callback function for the class
*/
void update();
/**
* Publication update
*/
virtual void updatePublications();
/**
* State prediction
* Continuous, non-linear
*/
int predictState(float dt);
/**
* State covariance prediction
* Continuous, linear
*/
int predictStateCovariance(float dt);
/**
* Attitude correction
*/
int correctAtt();
/**
* Position correction
*/
int correctPos();
/**
* Overloaded update parameters
*/
virtual void updateParams();
protected:
// kalman filter
math::Matrix<9,9> F; /**< Jacobian(f,x), where dx/dt = f(x,u) */
math::Matrix<9,6> G; /**< noise shaping matrix for gyro/accel */
math::Matrix<9,9> P; /**< state covariance matrix */
math::Matrix<9,9> P0; /**< initial state covariance matrix */
math::Matrix<6,6> V; /**< gyro/ accel noise matrix */
math::Matrix<4,9> HAtt; /**< attitude measurement matrix */
math::Matrix<4,4> RAtt; /**< attitude measurement noise matrix */
math::Matrix<6,9> HPos; /**< position measurement jacobian matrix */
math::Matrix<6,6> RPos; /**< position measurement noise matrix */
// attitude
math::Matrix<3,3> C_nb; /**< direction cosine matrix from body to nav frame */
math::Quaternion q; /**< quaternion from body to nav frame */
// subscriptions
uORB::Subscription<sensor_combined_s> _sensors; /**< sensors sub. */
uORB::Subscription<vehicle_gps_position_s> _gps; /**< gps sub. */
uORB::Subscription<parameter_update_s> _param_update; /**< parameter update sub. */
// publications
uORB::Publication<vehicle_global_position_s> _pos; /**< position pub. */
uORB::Publication<vehicle_local_position_s> _localPos; /**< local position pub. */
uORB::Publication<vehicle_attitude_s> _att; /**< attitude pub. */
// time stamps
uint64_t _pubTimeStamp; /**< output data publication time stamp */
uint64_t _predictTimeStamp; /**< prediction time stamp */
uint64_t _attTimeStamp; /**< attitude correction time stamp */
uint64_t _outTimeStamp; /**< output time stamp */
// frame count
uint16_t _navFrames; /**< navigation frames completed in output cycle */
// miss counts
uint16_t _miss; /**< number of times fast prediction loop missed */
// accelerations
float fN, fE, fD; /**< navigation frame acceleration */
// states
enum {PHI = 0, THETA, PSI, VN, VE, VD, LAT, LON, ALT}; /**< state enumeration */
float phi, theta, psi; /**< 3-2-1 euler angles */
float vN, vE, vD; /**< navigation velocity, m/s */
double lat, lon; /**< lat, lon radians */
// parameters
float alt; /**< altitude, meters */
double lat0, lon0; /**< reference latitude and longitude */
struct map_projection_reference_s ref; /**< local projection reference */
float alt0; /**< refeerence altitude (ground height) */
control::BlockParamFloat _vGyro; /**< gyro process noise */
control::BlockParamFloat _vAccel; /**< accelerometer process noise */
control::BlockParamFloat _rMag; /**< magnetometer measurement noise */
control::BlockParamFloat _rGpsVel; /**< gps velocity measurement noise */
control::BlockParamFloat _rGpsPos; /**< gps position measurement noise */
control::BlockParamFloat _rGpsAlt; /**< gps altitude measurement noise */
control::BlockParamFloat _rPressAlt; /**< press altitude measurement noise */
control::BlockParamFloat _rAccel; /**< accelerometer measurement noise */
control::BlockParamFloat _magDip; /**< magnetic inclination with level */
control::BlockParamFloat _magDec; /**< magnetic declination, clockwise rotation */
control::BlockParamFloat _g; /**< gravitational constant */
control::BlockParamFloat _faultPos; /**< fault detection threshold for position */
control::BlockParamFloat _faultAtt; /**< fault detection threshold for attitude */
// status
bool _attitudeInitialized;
bool _positionInitialized;
uint16_t _attitudeInitCounter;
// accessors
int32_t getLatDegE7() { return int32_t(lat * 1.0e7 * M_RAD_TO_DEG); }
void setLatDegE7(int32_t val) { lat = val / 1.0e7 / M_RAD_TO_DEG; }
int32_t getLonDegE7() { return int32_t(lon * 1.0e7 * M_RAD_TO_DEG); }
void setLonDegE7(int32_t val) { lon = val / 1.0e7 / M_RAD_TO_DEG; }
int32_t getAltE3() { return int32_t(alt * 1.0e3); }
void setAltE3(int32_t val) { alt = double(val) / 1.0e3; }
};
src/modules/att_pos_estimator_ekf/kalman_main.cpp
-157
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@@ -1,157 +0,0 @@
/****************************************************************************
*
* Copyright (c) 2012, 2013 PX4 Development Team. All rights reserved.
* Author: James Goppert
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
* 3. Neither the name PX4 nor the names of its contributors may be
* used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*
****************************************************************************/
/**
* @file kalman_main.cpp
* Combined attitude / position estimator.
*
* @author James Goppert
*/
#include <nuttx/config.h>
#include <unistd.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <systemlib/systemlib.h>
#include <systemlib/param/param.h>
#include <systemlib/err.h>
#include <drivers/drv_hrt.h>
#include <math.h>
#include "KalmanNav.hpp"
static bool thread_should_exit = false; /**< Deamon exit flag */
static bool thread_running = false; /**< Deamon status flag */
static int daemon_task; /**< Handle of deamon task / thread */
/**
* Deamon management function.
*/
extern "C" __EXPORT int att_pos_estimator_ekf_main(int argc, char *argv[]);
/**
* Mainloop of deamon.
*/
int kalman_demo_thread_main(int argc, char *argv[]);
/**
* Print the correct usage.
*/
static void usage(const char *reason);
static void
usage(const char *reason)
{
if (reason)
fprintf(stderr, "%s\n", reason);
warnx("usage: att_pos_estimator_ekf {start|stop|status} [-p <additional params>]");
exit(1);
}
/**
* The deamon app only briefly exists to start
* the background job. The stack size assigned in the
* Makefile does only apply to this management task.
*
* The actual stack size should be set in the call
* to task_create().
*/
int att_pos_estimator_ekf_main(int argc, char *argv[])
{
if (argc < 1)
usage("missing command");
if (!strcmp(argv[1], "start")) {
if (thread_running) {
warnx("already running");
/* this is not an error */
exit(0);
}
thread_should_exit = false;
daemon_task = task_spawn_cmd("att_pos_estimator_ekf",
SCHED_DEFAULT,
SCHED_PRIORITY_MAX - 30,
8192,
kalman_demo_thread_main,
(argv) ? (const char **)&argv[2] : (const char **)NULL);
exit(0);
}
if (!strcmp(argv[1], "stop")) {
thread_should_exit = true;
exit(0);
}
if (!strcmp(argv[1], "status")) {
if (thread_running) {
warnx("is running\n");
exit(0);
} else {
warnx("not started\n");
exit(1);
}
}
usage("unrecognized command");
exit(1);
}
int kalman_demo_thread_main(int argc, char *argv[])
{
warnx("starting");
using namespace math;
thread_running = true;
KalmanNav nav(NULL, "KF");
while (!thread_should_exit) {
nav.update();
}
warnx("exiting.");
thread_running = false;
return 0;
}
src/modules/att_pos_estimator_ekf/module.mk
-42
View File
@@ -1,42 +0,0 @@
############################################################################
#
# Copyright (c) 2012, 2013 PX4 Development Team. All rights reserved.
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions
# are met:
#
# 1. Redistributions of source code must retain the above copyright
# notice, this list of conditions and the following disclaimer.
# 2. Redistributions in binary form must reproduce the above copyright
# notice, this list of conditions and the following disclaimer in
# the documentation and/or other materials provided with the
# distribution.
# 3. Neither the name PX4 nor the names of its contributors may be
# used to endorse or promote products derived from this software
# without specific prior written permission.
#
# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
# FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
# COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
# INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
# BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
# OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
# AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
# ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
# POSSIBILITY OF SUCH DAMAGE.
#
############################################################################
#
# Full attitude / position Extended Kalman Filter
#
MODULE_COMMAND = att_pos_estimator_ekf
SRCS = kalman_main.cpp \
KalmanNav.cpp \
params.c
src/modules/att_pos_estimator_ekf/params.c
-49
View File
@@ -1,49 +0,0 @@
/****************************************************************************
*
* Copyright (c) 2012, 2013 PX4 Development Team. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
* 3. Neither the name PX4 nor the names of its contributors may be
* used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*
****************************************************************************/
#include <systemlib/param/param.h>
/*PARAM_DEFINE_FLOAT(NAME,0.0f);*/
PARAM_DEFINE_FLOAT(KF_V_GYRO, 0.008f);
PARAM_DEFINE_FLOAT(KF_V_ACCEL, 1.0f);
PARAM_DEFINE_FLOAT(KF_R_MAG, 0.8f);
PARAM_DEFINE_FLOAT(KF_R_GPS_VEL, 0.5f);
PARAM_DEFINE_FLOAT(KF_R_GPS_POS, 2.0f);
PARAM_DEFINE_FLOAT(KF_R_GPS_ALT, 3.0f);
PARAM_DEFINE_FLOAT(KF_R_PRESS_ALT, 0.1f);
PARAM_DEFINE_FLOAT(KF_R_ACCEL, 1.0f);
PARAM_DEFINE_FLOAT(KF_FAULT_POS, 10.0f);
PARAM_DEFINE_FLOAT(KF_FAULT_ATT, 10.0f);
PARAM_DEFINE_FLOAT(KF_ENV_G, 9.765f);
PARAM_DEFINE_FLOAT(KF_ENV_MAG_DIP, 60.0f);
PARAM_DEFINE_FLOAT(KF_ENV_MAG_DEC, 0.0f);
src/modules/attitude_estimator_ekf/attitude_estimator_ekf_main.cpp
+9 -16
View File
@@ -1,8 +1,6 @@
/****************************************************************************
*
* Copyright (C) 2012 PX4 Development Team. All rights reserved.
* Author: Tobias Naegeli <naegelit@student.ethz.ch>
* Lorenz Meier <lm@inf.ethz.ch>
* Copyright (c) 2012-2014 PX4 Development Team. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
@@ -34,9 +32,12 @@
****************************************************************************/
/*
* @file attitude_estimator_ekf_main.c
* @file attitude_estimator_ekf_main.cpp
*
* Extended Kalman Filter for Attitude Estimation.
*
* @author Tobias Naegeli <naegelit@student.ethz.ch>
* @author Lorenz Meier <lm@inf.ethz.ch>
*/
#include <nuttx/config.h>
@@ -111,7 +112,7 @@ usage(const char *reason)
* Makefile does only apply to this management task.
*
* The actual stack size should be set in the call
* to task_create().
* to task_spawn_cmd().
*/
int attitude_estimator_ekf_main(int argc, char *argv[])
{
@@ -265,7 +266,6 @@ const unsigned int loop_interval_alarm = 6500; // loop interval in microseconds
orb_advert_t pub_att = orb_advertise(ORB_ID(vehicle_attitude), &att);
int loopcounter = 0;
int printcounter = 0;
thread_running = true;
@@ -273,9 +273,6 @@ const unsigned int loop_interval_alarm = 6500; // loop interval in microseconds
// struct debug_key_value_s dbg = { .key = "", .value = 0.0f };
// orb_advert_t pub_dbg = -1;
float sensor_update_hz[3] = {0.0f, 0.0f, 0.0f};
// XXX write this out to perf regs
/* keep track of sensor updates */
uint64_t sensor_last_timestamp[3] = {0, 0, 0};
@@ -286,11 +283,9 @@ const unsigned int loop_interval_alarm = 6500; // loop interval in microseconds
/* initialize parameter handles */
parameters_init(&ekf_param_handles);
uint64_t start_time = hrt_absolute_time();
bool initialized = false;
float gyro_offsets[3] = { 0.0f, 0.0f, 0.0f };
unsigned offset_count = 0;
/* rotation matrix for magnetic declination */
math::Matrix<3, 3> R_decl;
@@ -381,7 +376,7 @@ const unsigned int loop_interval_alarm = 6500; // loop interval in microseconds
/* Fill in gyro measurements */
if (sensor_last_timestamp[0] != raw.timestamp) {
update_vect[0] = 1;
sensor_update_hz[0] = 1e6f / (raw.timestamp - sensor_last_timestamp[0]);
// sensor_update_hz[0] = 1e6f / (raw.timestamp - sensor_last_timestamp[0]);
sensor_last_timestamp[0] = raw.timestamp;
}
@@ -392,7 +387,7 @@ const unsigned int loop_interval_alarm = 6500; // loop interval in microseconds
/* update accelerometer measurements */
if (sensor_last_timestamp[1] != raw.accelerometer_timestamp) {
update_vect[1] = 1;
sensor_update_hz[1] = 1e6f / (raw.timestamp - sensor_last_timestamp[1]);
// sensor_update_hz[1] = 1e6f / (raw.timestamp - sensor_last_timestamp[1]);
sensor_last_timestamp[1] = raw.accelerometer_timestamp;
}
@@ -444,7 +439,7 @@ const unsigned int loop_interval_alarm = 6500; // loop interval in microseconds
/* update magnetometer measurements */
if (sensor_last_timestamp[2] != raw.magnetometer_timestamp) {
update_vect[2] = 1;
sensor_update_hz[2] = 1e6f / (raw.timestamp - sensor_last_timestamp[2]);
// sensor_update_hz[2] = 1e6f / (raw.timestamp - sensor_last_timestamp[2]);
sensor_last_timestamp[2] = raw.magnetometer_timestamp;
}
@@ -497,8 +492,6 @@ const unsigned int loop_interval_alarm = 6500; // loop interval in microseconds
continue;
}
uint64_t timing_start = hrt_absolute_time();
attitudeKalmanfilter(update_vect, dt, z_k, x_aposteriori_k, P_aposteriori_k, ekf_params.q, ekf_params.r,
euler, Rot_matrix, x_aposteriori, P_aposteriori);
src/modules/attitude_estimator_ekf/module.mk
+2
View File
@@ -50,3 +50,5 @@ SRCS = attitude_estimator_ekf_main.cpp \
codegen/rtGetNaN.c \
codegen/norm.c \
codegen/cross.c
MODULE_STACKSIZE = 1200
src/modules/attitude_estimator_so3/attitude_estimator_so3_main.cpp
+5 -4
View File
@@ -1,8 +1,6 @@
/****************************************************************************
*
* Copyright (C) 2013 PX4 Development Team. All rights reserved.
* Author: Hyon Lim <limhyon@gmail.com>
* Anton Babushkin <anton.babushkin@me.com>
* Copyright (c) 2013 PX4 Development Team. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
@@ -36,6 +34,9 @@
/*
* @file attitude_estimator_so3_main.cpp
*
* @author Hyon Lim <limhyon@gmail.com>
* @author Anton Babushkin <anton.babushkin@me.com>
*
* Implementation of nonlinear complementary filters on the SO(3).
* This code performs attitude estimation by using accelerometer, gyroscopes and magnetometer.
* Result is provided as quaternion, 1-2-3 Euler angle and rotation matrix.
@@ -131,7 +132,7 @@ usage(const char *reason)
* Makefile does only apply to this management task.
*
* The actual stack size should be set in the call
* to task_create().
* to task_spawn_cmd().
*/
int attitude_estimator_so3_main(int argc, char *argv[])
{
src/modules/attitude_estimator_so3/module.mk
+2
View File
@@ -6,3 +6,5 @@ MODULE_COMMAND = attitude_estimator_so3
SRCS = attitude_estimator_so3_main.cpp \
attitude_estimator_so3_params.c
MODULE_STACKSIZE = 1200
src/modules/commander/accelerometer_calibration.cpp
+40 -26
View File
@@ -194,13 +194,13 @@ int do_accel_calibration(int mavlink_fd)
int32_t board_rotation_int;
param_get(board_rotation_h, &(board_rotation_int));
enum Rotation board_rotation_id = (enum Rotation)board_rotation_int;
math::Matrix<3,3> board_rotation;
math::Matrix<3, 3> board_rotation;
get_rot_matrix(board_rotation_id, &board_rotation);
math::Matrix<3,3> board_rotation_t = board_rotation.transposed();
math::Matrix<3, 3> board_rotation_t = board_rotation.transposed();
math::Vector<3> accel_offs_vec(&accel_offs[0]);
math::Vector<3> accel_offs_rotated = board_rotation_t * accel_offs_vec;
math::Matrix<3,3> accel_T_mat(&accel_T[0][0]);
math::Matrix<3,3> accel_T_rotated = board_rotation_t * accel_T_mat * board_rotation;
math::Vector<3> accel_offs_rotated = board_rotation_t *accel_offs_vec;
math::Matrix<3, 3> accel_T_mat(&accel_T[0][0]);
math::Matrix<3, 3> accel_T_rotated = board_rotation_t *accel_T_mat * board_rotation;
accel_scale.x_offset = accel_offs_rotated(0);
accel_scale.x_scale = accel_T_rotated(0, 0);
@@ -277,11 +277,13 @@ int do_accel_calibration_measurements(int mavlink_fd, float accel_offs[3], float
}
}
if (old_done_count != done_count)
if (old_done_count != done_count) {
mavlink_log_info(mavlink_fd, CAL_PROGRESS_MSG, sensor_name, 17 * done_count);
}
if (done)
if (done) {
break;
}
mavlink_log_info(mavlink_fd, "directions left: %s%s%s%s%s%s",
(!data_collected[0]) ? "x+ " : "",
@@ -380,11 +382,13 @@ int detect_orientation(int mavlink_fd, int sub_sensor_combined)
d = d * d;
accel_disp[i] = accel_disp[i] * (1.0f - w);
if (d > still_thr2 * 8.0f)
if (d > still_thr2 * 8.0f) {
d = still_thr2 * 8.0f;
}
if (d > accel_disp[i])
if (d > accel_disp[i]) {
accel_disp[i] = d;
}
}
/* still detector with hysteresis */
@@ -432,33 +436,39 @@ int detect_orientation(int mavlink_fd, int sub_sensor_combined)
if (fabsf(accel_ema[0] - CONSTANTS_ONE_G) < accel_err_thr &&
fabsf(accel_ema[1]) < accel_err_thr &&
fabsf(accel_ema[2]) < accel_err_thr)
return 0; // [ g, 0, 0 ]
fabsf(accel_ema[2]) < accel_err_thr) {
return 0; // [ g, 0, 0 ]
}
if (fabsf(accel_ema[0] + CONSTANTS_ONE_G) < accel_err_thr &&
fabsf(accel_ema[1]) < accel_err_thr &&
fabsf(accel_ema[2]) < accel_err_thr)
return 1; // [ -g, 0, 0 ]
fabsf(accel_ema[2]) < accel_err_thr) {
return 1; // [ -g, 0, 0 ]
}
if (fabsf(accel_ema[0]) < accel_err_thr &&
fabsf(accel_ema[1] - CONSTANTS_ONE_G) < accel_err_thr &&
fabsf(accel_ema[2]) < accel_err_thr)
return 2; // [ 0, g, 0 ]
fabsf(accel_ema[2]) < accel_err_thr) {
return 2; // [ 0, g, 0 ]
}
if (fabsf(accel_ema[0]) < accel_err_thr &&
fabsf(accel_ema[1] + CONSTANTS_ONE_G) < accel_err_thr &&
fabsf(accel_ema[2]) < accel_err_thr)
return 3; // [ 0, -g, 0 ]
fabsf(accel_ema[2]) < accel_err_thr) {
return 3; // [ 0, -g, 0 ]
}
if (fabsf(accel_ema[0]) < accel_err_thr &&
fabsf(accel_ema[1]) < accel_err_thr &&
fabsf(accel_ema[2] - CONSTANTS_ONE_G) < accel_err_thr)
return 4; // [ 0, 0, g ]
fabsf(accel_ema[2] - CONSTANTS_ONE_G) < accel_err_thr) {
return 4; // [ 0, 0, g ]
}
if (fabsf(accel_ema[0]) < accel_err_thr &&
fabsf(accel_ema[1]) < accel_err_thr &&
fabsf(accel_ema[2] + CONSTANTS_ONE_G) < accel_err_thr)
return 5; // [ 0, 0, -g ]
fabsf(accel_ema[2] + CONSTANTS_ONE_G) < accel_err_thr) {
return 5; // [ 0, 0, -g ]
}
mavlink_log_critical(mavlink_fd, "ERROR: invalid orientation");
@@ -485,8 +495,9 @@ int read_accelerometer_avg(int sensor_combined_sub, float accel_avg[3], int samp
struct sensor_combined_s sensor;
orb_copy(ORB_ID(sensor_combined), sensor_combined_sub, &sensor);
for (int i = 0; i < 3; i++)
for (int i = 0; i < 3; i++) {
accel_sum[i] += sensor.accelerometer_m_s2[i];
}
count++;
@@ -495,8 +506,9 @@ int read_accelerometer_avg(int sensor_combined_sub, float accel_avg[3], int samp
continue;
}
if (errcount > samples_num / 10)
if (errcount > samples_num / 10) {
return ERROR;
}
}
for (int i = 0; i < 3; i++) {
@@ -512,8 +524,9 @@ int mat_invert3(float src[3][3], float dst[3][3])
src[0][1] * (src[1][0] * src[2][2] - src[1][2] * src[2][0]) +
src[0][2] * (src[1][0] * src[2][1] - src[1][1] * src[2][0]);
if (det == 0.0f)
return ERROR; // Singular matrix
if (det == 0.0f) {
return ERROR; // Singular matrix
}
dst[0][0] = (src[1][1] * src[2][2] - src[1][2] * src[2][1]) / det;
dst[1][0] = (src[1][2] * src[2][0] - src[1][0] * src[2][2]) / det;
@@ -549,8 +562,9 @@ int calculate_calibration_values(float accel_ref[6][3], float accel_T[3][3], flo
/* calculate inverse matrix for A */
float mat_A_inv[3][3];
if (mat_invert3(mat_A, mat_A_inv) != OK)
if (mat_invert3(mat_A, mat_A_inv) != OK) {
return ERROR;
}
/* copy results to accel_T */
for (int i = 0; i < 3; i++) {
src/modules/commander/airspeed_calibration.cpp
+5 -1
View File
@@ -82,12 +82,15 @@ int do_airspeed_calibration(int mavlink_fd)
bool paramreset_successful = false;
int fd = open(AIRSPEED_DEVICE_PATH, 0);
if (fd > 0) {
if (OK == ioctl(fd, AIRSPEEDIOCSSCALE, (long unsigned int)&airscale)) {
paramreset_successful = true;
} else {
mavlink_log_critical(mavlink_fd, "airspeed offset zero failed");
}
close(fd);
}
@@ -112,8 +115,9 @@ int do_airspeed_calibration(int mavlink_fd)
diff_pres_offset += diff_pres.differential_pressure_raw_pa;
calibration_counter++;
if (calibration_counter % (calibration_count / 20) == 0)
if (calibration_counter % (calibration_count / 20) == 0) {
mavlink_log_info(mavlink_fd, CAL_PROGRESS_MSG, sensor_name, (calibration_counter * 100) / calibration_count);
}
} else if (poll_ret == 0) {
/* any poll failure for 1s is a reason to abort */
src/modules/commander/commander.cpp
+219 -119
View File
@@ -117,9 +117,10 @@ extern struct system_load_s system_load;
#define STICK_ON_OFF_HYSTERESIS_TIME_MS 1000
#define STICK_ON_OFF_COUNTER_LIMIT (STICK_ON_OFF_HYSTERESIS_TIME_MS*COMMANDER_MONITORING_LOOPSPERMSEC)
#define POSITION_TIMEOUT 100000 /**< consider the local or global position estimate invalid after 100ms */
#define RC_TIMEOUT 500000
#define DIFFPRESS_TIMEOUT 2000000
#define POSITION_TIMEOUT (600 * 1000) /**< consider the local or global position estimate invalid after 600ms */
#define FAILSAFE_DEFAULT_TIMEOUT (3 * 1000 * 1000) /**< hysteresis time - the failsafe will trigger after 3 seconds in this state */
#define RC_TIMEOUT 500000
#define DIFFPRESS_TIMEOUT 2000000
#define PRINT_INTERVAL 5000000
#define PRINT_MODE_REJECT_INTERVAL 2000000
@@ -220,7 +221,7 @@ void print_status();
transition_result_t check_navigation_state_machine(struct vehicle_status_s *status, struct vehicle_control_mode_s *control_mode, struct vehicle_local_position_s *local_pos);
transition_result_t arm_disarm(bool arm, const int mavlink_fd, const char* armedBy);
transition_result_t arm_disarm(bool arm, const int mavlink_fd, const char *armedBy);
/**
* Loop that runs at a lower rate and priority for calibration and parameter tasks.
@@ -232,8 +233,9 @@ void answer_command(struct vehicle_command_s &cmd, enum VEHICLE_CMD_RESULT resul
int commander_main(int argc, char *argv[])
{
if (argc < 1)
if (argc < 1) {
usage("missing command");
}
if (!strcmp(argv[1], "start")) {
@@ -247,7 +249,7 @@ int commander_main(int argc, char *argv[])
daemon_task = task_spawn_cmd("commander",
SCHED_DEFAULT,
SCHED_PRIORITY_MAX - 40,
3000,
2950,
commander_thread_main,
(argv) ? (const char **)&argv[2] : (const char **)NULL);
@@ -260,8 +262,9 @@ int commander_main(int argc, char *argv[])
if (!strcmp(argv[1], "stop")) {
if (!thread_running)
if (!thread_running) {
errx(0, "commander already stopped");
}
thread_should_exit = true;
@@ -303,8 +306,9 @@ int commander_main(int argc, char *argv[])
void usage(const char *reason)
{
if (reason)
if (reason) {
fprintf(stderr, "%s\n", reason);
}
fprintf(stderr, "usage: daemon {start|stop|status} [-p <additional params>]\n\n");
exit(1);
@@ -363,20 +367,22 @@ void print_status()
static orb_advert_t status_pub;
transition_result_t arm_disarm(bool arm, const int mavlink_fd, const char* armedBy)
transition_result_t arm_disarm(bool arm, const int mavlink_fd, const char *armedBy)
{
transition_result_t arming_res = TRANSITION_NOT_CHANGED;
// Transition the armed state. By passing mavlink_fd to arming_state_transition it will
// output appropriate error messages if the state cannot transition.
arming_res = arming_state_transition(&status, &safety, arm ? ARMING_STATE_ARMED : ARMING_STATE_STANDBY, &armed, mavlink_fd);
if (arming_res == TRANSITION_CHANGED && mavlink_fd) {
mavlink_log_info(mavlink_fd, "[cmd] %s by %s", arm ? "ARMED" : "DISARMED", armedBy);
} else if (arming_res == TRANSITION_DENIED) {
tune_negative(true);
}
return arming_res;
transition_result_t arming_res = TRANSITION_NOT_CHANGED;
// Transition the armed state. By passing mavlink_fd to arming_state_transition it will
// output appropriate error messages if the state cannot transition.
arming_res = arming_state_transition(&status, &safety, arm ? ARMING_STATE_ARMED : ARMING_STATE_STANDBY, &armed, mavlink_fd);
if (arming_res == TRANSITION_CHANGED && mavlink_fd) {
mavlink_log_info(mavlink_fd, "[cmd] %s by %s", arm ? "ARMED" : "DISARMED", armedBy);
} else if (arming_res == TRANSITION_DENIED) {
tune_negative(true);
}
return arming_res;
}
bool handle_command(struct vehicle_status_s *status, const struct safety_s *safety, struct vehicle_command_s *cmd, struct actuator_armed_s *armed, struct home_position_s *home, struct vehicle_global_position_s *global_pos, orb_advert_t *home_pub)
@@ -416,14 +422,16 @@ bool handle_command(struct vehicle_status_s *status, const struct safety_s *safe
}
}
if (hil_ret == OK)
if (hil_ret == OK) {
ret = true;
}
// Transition the arming state
arming_res = arm_disarm(base_mode & MAV_MODE_FLAG_SAFETY_ARMED, mavlink_fd, "set mode command");
// Transition the arming state
arming_res = arm_disarm(base_mode & MAV_MODE_FLAG_SAFETY_ARMED, mavlink_fd, "set mode command");
if (arming_res == TRANSITION_CHANGED)
if (arming_res == TRANSITION_CHANGED) {
ret = true;
}
/* set main state */
transition_result_t main_res = TRANSITION_DENIED;
@@ -434,17 +442,21 @@ bool handle_command(struct vehicle_status_s *status, const struct safety_s *safe
/* MANUAL */
main_res = main_state_transition(status, MAIN_STATE_MANUAL);
} else if (custom_main_mode == PX4_CUSTOM_MAIN_MODE_SEATBELT) {
/* SEATBELT */
main_res = main_state_transition(status, MAIN_STATE_SEATBELT);
} else if (custom_main_mode == PX4_CUSTOM_MAIN_MODE_ALTCTL) {
/* ALTCTL */
main_res = main_state_transition(status, MAIN_STATE_ALTCTL);
} else if (custom_main_mode == PX4_CUSTOM_MAIN_MODE_EASY) {
/* EASY */
main_res = main_state_transition(status, MAIN_STATE_EASY);
} else if (custom_main_mode == PX4_CUSTOM_MAIN_MODE_POSCTL) {
/* POSCTL */
main_res = main_state_transition(status, MAIN_STATE_POSCTL);
} else if (custom_main_mode == PX4_CUSTOM_MAIN_MODE_AUTO) {
/* AUTO */
main_res = main_state_transition(status, MAIN_STATE_AUTO);
} else if (custom_main_mode == PX4_CUSTOM_MAIN_MODE_ACRO) {
/* ACRO */
main_res = main_state_transition(status, MAIN_STATE_ACRO);
}
} else {
@@ -455,8 +467,8 @@ bool handle_command(struct vehicle_status_s *status, const struct safety_s *safe
} else if (base_mode & MAV_MODE_FLAG_MANUAL_INPUT_ENABLED) {
if (base_mode & MAV_MODE_FLAG_GUIDED_ENABLED) {
/* EASY */
main_res = main_state_transition(status, MAIN_STATE_EASY);
/* POSCTL */
main_res = main_state_transition(status, MAIN_STATE_POSCTL);
} else if (base_mode & MAV_MODE_FLAG_STABILIZE_ENABLED) {
/* MANUAL */
@@ -465,8 +477,9 @@ bool handle_command(struct vehicle_status_s *status, const struct safety_s *safe
}
}
if (main_res == TRANSITION_CHANGED)
if (main_res == TRANSITION_CHANGED) {
ret = true;
}
if (arming_res != TRANSITION_DENIED && main_res != TRANSITION_DENIED) {
result = VEHICLE_CMD_RESULT_ACCEPTED;
@@ -479,19 +492,28 @@ bool handle_command(struct vehicle_status_s *status, const struct safety_s *safe
}
case VEHICLE_CMD_COMPONENT_ARM_DISARM: {
// Follow exactly what the mavlink spec says for values: 0.0f for disarm, 1.0f for arm.
// We use an float epsilon delta to test float equality.
if (cmd->param1 != 0.0f && (fabsf(cmd->param1 - 1.0f) > 2.0f * FLT_EPSILON)) {
// Follow exactly what the mavlink spec says for values: 0.0f for disarm, 1.0f for arm.
// We use an float epsilon delta to test float equality.
if (cmd->param1 != 0.0f && (fabsf(cmd->param1 - 1.0f) > 2.0f * FLT_EPSILON)) {
mavlink_log_info(mavlink_fd, "Unsupported ARM_DISARM parameter: %.6f", cmd->param1);
} else {
transition_result_t arming_res = arm_disarm(cmd->param1 != 0.0f, mavlink_fd, "arm/disarm component command");
if (arming_res == TRANSITION_DENIED) {
mavlink_log_critical(mavlink_fd, "#audio: REJECTING component arm cmd");
result = VEHICLE_CMD_RESULT_TEMPORARILY_REJECTED;
} else {
result = VEHICLE_CMD_RESULT_ACCEPTED;
}
}
} else {
// Flick to inair restore first if this comes from an onboard system
if (cmd->source_system == status->system_id && cmd->source_component == status->component_id) {
status->arming_state = ARMING_STATE_IN_AIR_RESTORE;
}
transition_result_t arming_res = arm_disarm(cmd->param1 != 0.0f, mavlink_fd, "arm/disarm component command");
if (arming_res == TRANSITION_DENIED) {
mavlink_log_critical(mavlink_fd, "#audio: REJECTING component arm cmd");
result = VEHICLE_CMD_RESULT_TEMPORARILY_REJECTED;
} else {
result = VEHICLE_CMD_RESULT_ACCEPTED;
}
}
}
break;
@@ -519,7 +541,7 @@ bool handle_command(struct vehicle_status_s *status, const struct safety_s *safe
}
break;
/* Flight termination */
/* Flight termination */
case VEHICLE_CMD_DO_SET_SERVO: { //xxx: needs its own mavlink command
//XXX: to enable the parachute, a param needs to be set
@@ -539,6 +561,7 @@ bool handle_command(struct vehicle_status_s *status, const struct safety_s *safe
case VEHICLE_CMD_DO_SET_HOME: {
bool use_current = cmd->param1 > 0.5f;
if (use_current) {
/* use current position */
if (status->condition_global_position_valid) {
@@ -582,6 +605,7 @@ bool handle_command(struct vehicle_status_s *status, const struct safety_s *safe
}
}
break;
case VEHICLE_CMD_PREFLIGHT_REBOOT_SHUTDOWN:
case VEHICLE_CMD_PREFLIGHT_CALIBRATION:
case VEHICLE_CMD_PREFLIGHT_SET_SENSOR_OFFSETS:
@@ -595,6 +619,7 @@ bool handle_command(struct vehicle_status_s *status, const struct safety_s *safe
answer_command(*cmd, VEHICLE_CMD_RESULT_UNSUPPORTED);
break;
}
if (result != VEHICLE_CMD_RESULT_UNSUPPORTED) {
/* already warned about unsupported commands in "default" case */
answer_command(*cmd, result);
@@ -628,9 +653,10 @@ int commander_thread_main(int argc, char *argv[])
char *main_states_str[MAIN_STATE_MAX];
main_states_str[0] = "MANUAL";
main_states_str[1] = "SEATBELT";
main_states_str[2] = "EASY";
main_states_str[1] = "ALTCTL";
main_states_str[2] = "POSCTL";
main_states_str[3] = "AUTO";
main_states_str[4] = "ACRO";
char *arming_states_str[ARMING_STATE_MAX];
arming_states_str[0] = "INIT";
@@ -722,7 +748,7 @@ int commander_thread_main(int argc, char *argv[])
pthread_attr_t commander_low_prio_attr;
pthread_attr_init(&commander_low_prio_attr);
pthread_attr_setstacksize(&commander_low_prio_attr, 2992);
pthread_attr_setstacksize(&commander_low_prio_attr, 2900);
struct sched_param param;
(void)pthread_attr_getschedparam(&commander_low_prio_attr, &param);
@@ -741,8 +767,9 @@ int commander_thread_main(int argc, char *argv[])
bool low_battery_voltage_actions_done = false;
bool critical_battery_voltage_actions_done = false;
uint64_t last_idle_time = 0;
uint64_t start_time = 0;
hrt_abstime last_idle_time = 0;
hrt_abstime start_time = 0;
hrt_abstime last_auto_state_valid = 0;
bool status_changed = true;
bool param_init_forced = true;
@@ -771,6 +798,9 @@ int commander_thread_main(int argc, char *argv[])
int global_position_sub = orb_subscribe(ORB_ID(vehicle_global_position));
struct vehicle_global_position_s global_position;
memset(&global_position, 0, sizeof(global_position));
/* Init EPH and EPV */
global_position.eph = 1000.0f;
global_position.epv = 1000.0f;
/* Subscribe to local position data */
int local_position_sub = orb_subscribe(ORB_ID(vehicle_local_position));
@@ -873,6 +903,7 @@ int commander_thread_main(int argc, char *argv[])
/* re-check RC calibration */
rc_calibration_ok = (OK == rc_calibration_check(mavlink_fd));
}
/* navigation parameters */
param_get(_param_takeoff_alt, &takeoff_alt);
param_get(_param_enable_parachute, &parachute_enabled);
@@ -913,6 +944,7 @@ int commander_thread_main(int argc, char *argv[])
/* disarm if safety is now on and still armed */
if (status.hil_state == HIL_STATE_OFF && safety.safety_switch_available && !safety.safety_off && armed.armed) {
arming_state_t new_arming_state = (status.arming_state == ARMING_STATE_ARMED ? ARMING_STATE_STANDBY : ARMING_STATE_STANDBY_ERROR);
if (TRANSITION_CHANGED == arming_state_transition(&status, &safety, new_arming_state, &armed)) {
mavlink_log_info(mavlink_fd, "[cmd] DISARMED by safety switch");
}
@@ -930,23 +962,31 @@ int commander_thread_main(int argc, char *argv[])
/* update condition_global_position_valid */
/* hysteresis for EPH/EPV */
bool eph_epv_good;
if (status.condition_global_position_valid) {
if (global_position.eph > eph_epv_threshold * 2.0f || global_position.epv > eph_epv_threshold * 2.0f) {
eph_epv_good = false;
} else {
eph_epv_good = true;
}
} else {
if (global_position.eph < eph_epv_threshold && global_position.epv < eph_epv_threshold) {
eph_epv_good = true;
} else {
eph_epv_good = false;
}
}
check_valid(global_position.timestamp, POSITION_TIMEOUT, eph_epv_good, &(status.condition_global_position_valid), &status_changed);
/* check if GPS fix is ok */
/* update home position */
if (!status.condition_home_position_valid && status.condition_global_position_valid && !armed.armed &&
(global_position.eph < eph_epv_threshold) && (global_position.epv < eph_epv_threshold)) {
(global_position.eph < eph_epv_threshold) && (global_position.epv < eph_epv_threshold)) {
home.lat = global_position.lat;
home.lon = global_position.lon;
@@ -977,10 +1017,30 @@ int commander_thread_main(int argc, char *argv[])
}
/* update condition_local_position_valid and condition_local_altitude_valid */
check_valid(local_position.timestamp, POSITION_TIMEOUT, local_position.xy_valid && eph_epv_good, &(status.condition_local_position_valid), &status_changed);
/* hysteresis for EPH */
bool local_eph_good;
if (status.condition_global_position_valid) {
if (local_position.eph > eph_epv_threshold * 2.0f) {
local_eph_good = false;
} else {
local_eph_good = true;
}
} else {
if (local_position.eph < eph_epv_threshold) {
local_eph_good = true;
} else {
local_eph_good = false;
}
}
check_valid(local_position.timestamp, POSITION_TIMEOUT, local_position.xy_valid && local_eph_good, &(status.condition_local_position_valid), &status_changed);
check_valid(local_position.timestamp, POSITION_TIMEOUT, local_position.z_valid, &(status.condition_local_altitude_valid), &status_changed);
static bool published_condition_landed_fw = false;
if (status.is_rotary_wing && status.condition_local_altitude_valid) {
if (status.condition_landed != local_position.landed) {
status.condition_landed = local_position.landed;
@@ -994,6 +1054,7 @@ int commander_thread_main(int argc, char *argv[])
mavlink_log_critical(mavlink_fd, "#audio: IN AIR");
}
}
} else {
if (!published_condition_landed_fw) {
status.condition_landed = false; // Fixedwing does not have a landing detector currently
@@ -1063,8 +1124,9 @@ int commander_thread_main(int argc, char *argv[])
/* compute system load */
uint64_t interval_runtime = system_load.tasks[0].total_runtime - last_idle_time;
if (last_idle_time > 0)
status.load = 1.0f - ((float)interval_runtime / 1e6f); //system load is time spent in non-idle
if (last_idle_time > 0) {
status.load = 1.0f - ((float)interval_runtime / 1e6f); //system load is time spent in non-idle
}
last_idle_time = system_load.tasks[0].total_runtime;
@@ -1140,22 +1202,22 @@ int commander_thread_main(int argc, char *argv[])
status.rc_signal_lost = false;
transition_result_t res; // store all transitions results here
transition_result_t arming_res; // store all transitions results here
/* arm/disarm by RC */
res = TRANSITION_NOT_CHANGED;
arming_res = TRANSITION_NOT_CHANGED;
/* check if left stick is in lower left position and we are in MANUAL or AUTO_READY mode or (ASSISTED mode and landed) -> disarm
/* check if left stick is in lower left position and we are in MANUAL or AUTO_READY mode or (ASSIST mode and landed) -> disarm
* do it only for rotary wings */
if (status.is_rotary_wing &&
(status.arming_state == ARMING_STATE_ARMED || status.arming_state == ARMING_STATE_ARMED_ERROR) &&
(status.main_state == MAIN_STATE_MANUAL || status.condition_landed) &&
sp_man.yaw < -STICK_ON_OFF_LIMIT && sp_man.throttle < 0.1f) {
(status.main_state == MAIN_STATE_MANUAL || status.main_state == MAIN_STATE_ACRO || status.condition_landed) &&
sp_man.r < -STICK_ON_OFF_LIMIT && sp_man.z < 0.1f) {
if (stick_off_counter > STICK_ON_OFF_COUNTER_LIMIT) {
/* disarm to STANDBY if ARMED or to STANDBY_ERROR if ARMED_ERROR */
arming_state_t new_arming_state = (status.arming_state == ARMING_STATE_ARMED ? ARMING_STATE_STANDBY : ARMING_STATE_STANDBY_ERROR);
res = arming_state_transition(&status, &safety, new_arming_state, &armed);
arming_res = arming_state_transition(&status, &safety, new_arming_state, &armed);
stick_off_counter = 0;
} else {
@@ -1168,16 +1230,16 @@ int commander_thread_main(int argc, char *argv[])
/* check if left stick is in lower right position and we're in MANUAL mode -> arm */
if (status.arming_state == ARMING_STATE_STANDBY &&
sp_man.yaw > STICK_ON_OFF_LIMIT && sp_man.throttle < 0.1f) {
sp_man.r > STICK_ON_OFF_LIMIT && sp_man.z < 0.1f) {
if (stick_on_counter > STICK_ON_OFF_COUNTER_LIMIT) {
if (safety.safety_switch_available && !safety.safety_off && status.hil_state == HIL_STATE_OFF) {
print_reject_arm("NOT ARMING: Press safety switch first.");
print_reject_arm("#audio: NOT ARMING: Press safety switch first.");
} else if (status.main_state != MAIN_STATE_MANUAL) {
print_reject_arm("NOT ARMING: Switch to MANUAL mode first.");
print_reject_arm("#audio: NOT ARMING: Switch to MANUAL mode first.");
} else {
res = arming_state_transition(&status, &safety, ARMING_STATE_ARMED, &armed);
arming_res = arming_state_transition(&status, &safety, ARMING_STATE_ARMED, &armed);
}
stick_on_counter = 0;
@@ -1190,7 +1252,7 @@ int commander_thread_main(int argc, char *argv[])
stick_on_counter = 0;
}
if (res == TRANSITION_CHANGED) {
if (arming_res == TRANSITION_CHANGED) {
if (status.arming_state == ARMING_STATE_ARMED) {
mavlink_log_info(mavlink_fd, "[cmd] ARMED by RC");
@@ -1198,24 +1260,24 @@ int commander_thread_main(int argc, char *argv[])
mavlink_log_info(mavlink_fd, "[cmd] DISARMED by RC");
}
} else if (res == TRANSITION_DENIED) {
} else if (arming_res == TRANSITION_DENIED) {
/* DENIED here indicates bug in the commander */
mavlink_log_critical(mavlink_fd, "ERROR: arming state transition denied");
}
if (status.failsafe_state != FAILSAFE_STATE_NORMAL) {
/* recover from failsafe */
transition_result_t res = failsafe_state_transition(&status, FAILSAFE_STATE_NORMAL);
(void)failsafe_state_transition(&status, FAILSAFE_STATE_NORMAL);
}
/* evaluate the main state machine according to mode switches */
res = set_main_state_rc(&status, &sp_man);
transition_result_t main_res = set_main_state_rc(&status, &sp_man);
/* play tune on mode change only if armed, blink LED always */
if (res == TRANSITION_CHANGED) {
if (main_res == TRANSITION_CHANGED) {
tune_positive(armed.armed);
} else if (res == TRANSITION_DENIED) {
} else if (main_res == TRANSITION_DENIED) {
/* DENIED here indicates bug in the commander */
mavlink_log_critical(mavlink_fd, "ERROR: main state transition denied");
}
@@ -1228,7 +1290,8 @@ int commander_thread_main(int argc, char *argv[])
status.set_nav_state_timestamp = hrt_absolute_time();
} else {
/* MISSION switch */
/* LOITER switch */
if (sp_man.loiter_switch == SWITCH_POS_ON) {
/* stick is in LOITER position */
status.set_nav_state = NAV_STATE_LOITER;
@@ -1240,7 +1303,7 @@ int commander_thread_main(int argc, char *argv[])
status.set_nav_state_timestamp = hrt_absolute_time();
} else if ((sp_man.return_switch == SWITCH_POS_OFF || sp_man.return_switch == SWITCH_POS_MIDDLE) &&
pos_sp_triplet.nav_state == NAV_STATE_RTL) {
pos_sp_triplet.nav_state == NAV_STATE_RTL) {
/* RETURN switch is in normal mode, no MISSION switch mapped, interrupt if in RTL state */
status.set_nav_state = NAV_STATE_MISSION;
status.set_nav_state_timestamp = hrt_absolute_time();
@@ -1257,34 +1320,39 @@ int commander_thread_main(int argc, char *argv[])
if (armed.armed) {
if (status.main_state == MAIN_STATE_AUTO) {
/* check if AUTO mode still allowed */
transition_result_t res = main_state_transition(&status, MAIN_STATE_AUTO);
transition_result_t auto_res = main_state_transition(&status, MAIN_STATE_AUTO);
if (res == TRANSITION_DENIED) {
if (auto_res == TRANSITION_NOT_CHANGED) {
last_auto_state_valid = hrt_absolute_time();
}
/* still invalid state after the timeout interval, execute failsafe */
if ((hrt_elapsed_time(&last_auto_state_valid) > FAILSAFE_DEFAULT_TIMEOUT) && (auto_res == TRANSITION_DENIED)) {
/* AUTO mode denied, don't try RTL, switch to failsafe state LAND */
res = failsafe_state_transition(&status, FAILSAFE_STATE_LAND);
auto_res = failsafe_state_transition(&status, FAILSAFE_STATE_LAND);
if (res == TRANSITION_DENIED) {
if (auto_res == TRANSITION_DENIED) {
/* LAND not allowed, set TERMINATION state */
transition_result_t res = failsafe_state_transition(&status, FAILSAFE_STATE_TERMINATION);
(void)failsafe_state_transition(&status, FAILSAFE_STATE_TERMINATION);
}
}
} else {
/* failsafe for manual modes */
transition_result_t res = TRANSITION_DENIED;
transition_result_t manual_res = TRANSITION_DENIED;
if (!status.condition_landed) {
/* vehicle is not landed, try to perform RTL */
res = failsafe_state_transition(&status, FAILSAFE_STATE_RTL);
manual_res = failsafe_state_transition(&status, FAILSAFE_STATE_RTL);
}
if (res == TRANSITION_DENIED) {
if (manual_res == TRANSITION_DENIED) {
/* RTL not allowed (no global position estimate) or not wanted, try LAND */
res = failsafe_state_transition(&status, FAILSAFE_STATE_LAND);
manual_res = failsafe_state_transition(&status, FAILSAFE_STATE_LAND);
if (res == TRANSITION_DENIED) {
if (manual_res == TRANSITION_DENIED) {
/* LAND not allowed, set TERMINATION state */
res = failsafe_state_transition(&status, FAILSAFE_STATE_TERMINATION);
(void)failsafe_state_transition(&status, FAILSAFE_STATE_TERMINATION);
}
}
}
@@ -1292,14 +1360,14 @@ int commander_thread_main(int argc, char *argv[])
} else {
if (status.failsafe_state != FAILSAFE_STATE_NORMAL) {
/* reset failsafe when disarmed */
transition_result_t res = failsafe_state_transition(&status, FAILSAFE_STATE_NORMAL);
(void)failsafe_state_transition(&status, FAILSAFE_STATE_NORMAL);
}
}
}
// TODO remove this hack
/* flight termination in manual mode if assisted switch is on easy position */
if (!status.is_rotary_wing && parachute_enabled && armed.armed && status.main_state == MAIN_STATE_MANUAL && sp_man.assisted_switch == SWITCH_POS_ON) {
/* flight termination in manual mode if assist switch is on POSCTL position */
if (!status.is_rotary_wing && parachute_enabled && armed.armed && status.main_state == MAIN_STATE_MANUAL && sp_man.posctl_switch == SWITCH_POS_ON) {
if (TRANSITION_CHANGED == failsafe_state_transition(&status, FAILSAFE_STATE_TERMINATION)) {
tune_positive(armed.armed);
}
@@ -1313,8 +1381,9 @@ int commander_thread_main(int argc, char *argv[])
orb_copy(ORB_ID(vehicle_command), cmd_sub, &cmd);
/* handle it */
if (handle_command(&status, &safety, &cmd, &armed, &home, &global_position, &home_pub))
if (handle_command(&status, &safety, &cmd, &armed, &home, &global_position, &home_pub)) {
status_changed = true;
}
}
/* check which state machines for changes, clear "changed" flag */
@@ -1331,7 +1400,7 @@ int commander_thread_main(int argc, char *argv[])
/* update home position on arming if at least 2s from commander start spent to avoid setting home on in-air restart */
if (armed.armed && !was_armed && hrt_absolute_time() > start_time + 2000000 && status.condition_global_position_valid &&
(global_position.eph < eph_epv_threshold) && (global_position.epv < eph_epv_threshold)) {
(global_position.eph < eph_epv_threshold) && (global_position.epv < eph_epv_threshold)) {
// TODO remove code duplication
home.lat = global_position.lat;
@@ -1339,7 +1408,7 @@ int commander_thread_main(int argc, char *argv[])
home.alt = global_position.alt;
warnx("home: lat = %.7f, lon = %.7f, alt = %.2f ", home.lat, home.lon, (double)home.alt);
mavlink_log_info(mavlink_fd, "[cmd] home: %.7f, %.7f, %.2f", home.lat, home.lon, (double)home.alt);
mavlink_log_info(mavlink_fd, "home: %.7f, %.7f, %.2f", home.lat, home.lon, (double)home.alt);
/* announce new home position */
if (home_pub > 0) {
@@ -1353,6 +1422,7 @@ int commander_thread_main(int argc, char *argv[])
status.condition_home_position_valid = true;
}
}
was_armed = armed.armed;
if (main_state_changed) {
@@ -1516,21 +1586,24 @@ control_status_leds(vehicle_status_s *status, const actuator_armed_s *actuator_a
} else if (actuator_armed->ready_to_arm) {
/* ready to arm, blink at 1Hz */
if (leds_counter % 20 == 0)
if (leds_counter % 20 == 0) {
led_toggle(LED_BLUE);
}
} else {
/* not ready to arm, blink at 10Hz */
if (leds_counter % 2 == 0)
if (leds_counter % 2 == 0) {
led_toggle(LED_BLUE);
}
}
#endif
/* give system warnings on error LED, XXX maybe add memory usage warning too */
if (status->load > 0.95f) {
if (leds_counter % 2 == 0)
if (leds_counter % 2 == 0) {
led_toggle(LED_AMBER);
}
} else {
led_off(LED_AMBER);
@@ -1551,30 +1624,35 @@ set_main_state_rc(struct vehicle_status_s *status, struct manual_control_setpoin
break;
case SWITCH_POS_OFF: // MANUAL
res = main_state_transition(status, MAIN_STATE_MANUAL);
if (sp_man->acro_switch == SWITCH_POS_ON) {
res = main_state_transition(status, MAIN_STATE_ACRO);
} else {
res = main_state_transition(status, MAIN_STATE_MANUAL);
}
// TRANSITION_DENIED is not possible here
break;
case SWITCH_POS_MIDDLE: // ASSISTED
if (sp_man->assisted_switch == SWITCH_POS_ON) {
res = main_state_transition(status, MAIN_STATE_EASY);
case SWITCH_POS_MIDDLE: // ASSIST
if (sp_man->posctl_switch == SWITCH_POS_ON) {
res = main_state_transition(status, MAIN_STATE_POSCTL);
if (res != TRANSITION_DENIED) {
break; // changed successfully or already in this state
}
// else fallback to SEATBELT
print_reject_mode(status, "EASY");
// else fallback to ALTCTL
print_reject_mode(status, "POSCTL");
}
res = main_state_transition(status, MAIN_STATE_SEATBELT);
res = main_state_transition(status, MAIN_STATE_ALTCTL);
if (res != TRANSITION_DENIED) {
break; // changed successfully or already in this mode
}
if (sp_man->assisted_switch != SWITCH_POS_ON) {
print_reject_mode(status, "SEATBELT");
if (sp_man->posctl_switch != SWITCH_POS_ON) {
print_reject_mode(status, "ALTCTL");
}
// else fallback to MANUAL
@@ -1589,9 +1667,9 @@ set_main_state_rc(struct vehicle_status_s *status, struct manual_control_setpoin
break; // changed successfully or already in this state
}
// else fallback to SEATBELT (EASY likely will not work too)
// else fallback to ALTCTL (POSCTL likely will not work too)
print_reject_mode(status, "AUTO");
res = main_state_transition(status, MAIN_STATE_SEATBELT);
res = main_state_transition(status, MAIN_STATE_ALTCTL);
if (res != TRANSITION_DENIED) {
break; // changed successfully or already in this state
@@ -1637,7 +1715,7 @@ set_control_mode()
control_mode.flag_control_velocity_enabled = false;
break;
case MAIN_STATE_SEATBELT:
case MAIN_STATE_ALTCTL:
control_mode.flag_control_manual_enabled = true;
control_mode.flag_control_auto_enabled = false;
control_mode.flag_control_rates_enabled = true;
@@ -1648,7 +1726,7 @@ set_control_mode()
control_mode.flag_control_velocity_enabled = false;
break;
case MAIN_STATE_EASY:
case MAIN_STATE_POSCTL:
control_mode.flag_control_manual_enabled = true;
control_mode.flag_control_auto_enabled = false;
control_mode.flag_control_rates_enabled = true;
@@ -1661,6 +1739,18 @@ set_control_mode()
case MAIN_STATE_AUTO:
navigator_enabled = true;
break;
case MAIN_STATE_ACRO:
control_mode.flag_control_manual_enabled = true;
control_mode.flag_control_auto_enabled = false;
control_mode.flag_control_rates_enabled = true;
control_mode.flag_control_attitude_enabled = false;
control_mode.flag_control_altitude_enabled = false;
control_mode.flag_control_climb_rate_enabled = false;
control_mode.flag_control_position_enabled = false;
control_mode.flag_control_velocity_enabled = false;
break;
default:
break;
@@ -1744,7 +1834,7 @@ void answer_command(struct vehicle_command_s &cmd, enum VEHICLE_CMD_RESULT resul
{
switch (result) {
case VEHICLE_CMD_RESULT_ACCEPTED:
tune_positive(true);
tune_positive(true);
break;
case VEHICLE_CMD_RESULT_DENIED:
@@ -1758,7 +1848,8 @@ void answer_command(struct vehicle_command_s &cmd, enum VEHICLE_CMD_RESULT resul
break;
case VEHICLE_CMD_RESULT_TEMPORARILY_REJECTED:
mavlink_log_critical(mavlink_fd, "#audio: command temporarily rejected: %u", cmd.command);
/* this needs additional hints to the user - so let other messages pass and be spoken */
mavlink_log_critical(mavlink_fd, "command temporarily rejected: %u", cmd.command);
tune_negative(true);
break;
@@ -1794,8 +1885,9 @@ void *commander_low_prio_loop(void *arg)
int pret = poll(&fds[0], (sizeof(fds) / sizeof(fds[0])), 200);
/* timed out - periodic check for thread_should_exit, etc. */
if (pret == 0)
if (pret == 0) {
continue;
}
/* this is undesirable but not much we can do - might want to flag unhappy status */
if (pret < 0) {
@@ -1810,8 +1902,9 @@ void *commander_low_prio_loop(void *arg)
if (cmd.command == VEHICLE_CMD_DO_SET_MODE ||
cmd.command == VEHICLE_CMD_COMPONENT_ARM_DISARM ||
cmd.command == VEHICLE_CMD_NAV_TAKEOFF ||
cmd.command == VEHICLE_CMD_DO_SET_SERVO)
cmd.command == VEHICLE_CMD_DO_SET_SERVO) {
continue;
}
/* only handle low-priority commands here */
switch (cmd.command) {
@@ -1889,6 +1982,7 @@ void *commander_low_prio_loop(void *arg)
/* airspeed calibration */
answer_command(cmd, VEHICLE_CMD_RESULT_ACCEPTED);
calib_ret = do_airspeed_calibration(mavlink_fd);
} else if ((int)(cmd.param4) == 0) {
/* RC calibration ended - have we been in one worth confirming? */
if (status.rc_input_blocked) {
@@ -1903,10 +1997,12 @@ void *commander_low_prio_loop(void *arg)
}
if (calib_ret == OK)
if (calib_ret == OK) {
tune_positive(true);
else
} else {
tune_negative(true);
}
arming_state_transition(&status, &safety, ARMING_STATE_STANDBY, &armed);
@@ -1926,11 +2022,13 @@ void *commander_low_prio_loop(void *arg)
mavlink_log_critical(mavlink_fd, "#audio: parameters load ERROR");
/* convenience as many parts of NuttX use negative errno */
if (ret < 0)
if (ret < 0) {
ret = -ret;
}
if (ret < 1000)
if (ret < 1000) {
mavlink_log_critical(mavlink_fd, "#audio: %s", strerror(ret));
}
answer_command(cmd, VEHICLE_CMD_RESULT_FAILED);
}
@@ -1946,11 +2044,13 @@ void *commander_low_prio_loop(void *arg)
mavlink_log_critical(mavlink_fd, "#audio: parameters save error");
/* convenience as many parts of NuttX use negative errno */
if (ret < 0)
if (ret < 0) {
ret = -ret;
}
if (ret < 1000)
if (ret < 1000) {
mavlink_log_critical(mavlink_fd, "#audio: %s", strerror(ret));
}
answer_command(cmd, VEHICLE_CMD_RESULT_FAILED);
}
@@ -1960,8 +2060,8 @@ void *commander_low_prio_loop(void *arg)
}
case VEHICLE_CMD_START_RX_PAIR:
/* handled in the IO driver */
break;
/* handled in the IO driver */
break;
default:
/* don't answer on unsupported commands, it will be done in main loop */
src/modules/commander/commander_helper.cpp
+17 -5
View File
@@ -113,17 +113,22 @@ void buzzer_deinit()
close(buzzer);
}
void set_tune(int tune) {
void set_tune(int tune)
{
unsigned int new_tune_duration = tune_durations[tune];
/* don't interrupt currently playing non-repeating tune by repeating */
if (tune_end == 0 || new_tune_duration != 0 || hrt_absolute_time() > tune_end) {
/* allow interrupting current non-repeating tune by the same tune */
if (tune != tune_current || new_tune_duration != 0) {
ioctl(buzzer, TONE_SET_ALARM, tune);
}
tune_current = tune;
if (new_tune_duration != 0) {
tune_end = hrt_absolute_time() + new_tune_duration;
} else {
tune_end = 0;
}
@@ -138,6 +143,7 @@ void tune_positive(bool use_buzzer)
blink_msg_end = hrt_absolute_time() + BLINK_MSG_TIME;
rgbled_set_color(RGBLED_COLOR_GREEN);
rgbled_set_mode(RGBLED_MODE_BLINK_FAST);
if (use_buzzer) {
set_tune(TONE_NOTIFY_POSITIVE_TUNE);
}
@@ -151,6 +157,7 @@ void tune_neutral(bool use_buzzer)
blink_msg_end = hrt_absolute_time() + BLINK_MSG_TIME;
rgbled_set_color(RGBLED_COLOR_WHITE);
rgbled_set_mode(RGBLED_MODE_BLINK_FAST);
if (use_buzzer) {
set_tune(TONE_NOTIFY_NEUTRAL_TUNE);
}
@@ -164,6 +171,7 @@ void tune_negative(bool use_buzzer)
blink_msg_end = hrt_absolute_time() + BLINK_MSG_TIME;
rgbled_set_color(RGBLED_COLOR_RED);
rgbled_set_mode(RGBLED_MODE_BLINK_FAST);
if (use_buzzer) {
set_tune(TONE_NOTIFY_NEGATIVE_TUNE);
}
@@ -198,7 +206,7 @@ int led_init()
return ERROR;
}
/* the blue LED is only available on FMUv1 but not FMUv2 */
/* the blue LED is only available on FMUv1 & AeroCore but not FMUv2 */
(void)ioctl(leds, LED_ON, LED_BLUE);
/* we consider the amber led mandatory */
@@ -244,22 +252,25 @@ int led_off(int led)
void rgbled_set_color(rgbled_color_t color)
{
if (rgbleds != -1)
if (rgbleds != -1) {
ioctl(rgbleds, RGBLED_SET_COLOR, (unsigned long)color);
}
}
void rgbled_set_mode(rgbled_mode_t mode)
{
if (rgbleds != -1)
if (rgbleds != -1) {
ioctl(rgbleds, RGBLED_SET_MODE, (unsigned long)mode);
}
}
void rgbled_set_pattern(rgbled_pattern_t *pattern)
{
if (rgbleds != -1)
if (rgbleds != -1) {
ioctl(rgbleds, RGBLED_SET_PATTERN, (unsigned long)pattern);
}
}
float battery_remaining_estimate_voltage(float voltage, float discharged)
@@ -299,6 +310,7 @@ float battery_remaining_estimate_voltage(float voltage, float discharged)
if (bat_capacity > 0.0f) {
/* if battery capacity is known, use discharged current for estimate, but don't show more than voltage estimate */
ret = fminf(remaining_voltage, 1.0f - discharged / bat_capacity);
} else {
/* else use voltage */
ret = remaining_voltage;
src/modules/commander/commander_tests/state_machine_helper_test.cpp
+12 -12
View File
@@ -317,34 +317,34 @@ bool StateMachineHelperTest::mainStateTransitionTest(void)
TRANSITION_CHANGED == main_state_transition(&current_state, new_main_state));
ut_assert("new state: manual", MAIN_STATE_MANUAL == current_state.main_state);
// MANUAL to SEATBELT.
// MANUAL to ALTCTRL.
current_state.main_state = MAIN_STATE_MANUAL;
current_state.condition_local_altitude_valid = true;
new_main_state = MAIN_STATE_SEATBELT;
ut_assert("tranisition: manual to seatbelt",
new_main_state = MAIN_STATE_ALTCTL;
ut_assert("tranisition: manual to altctrl",
TRANSITION_CHANGED == main_state_transition(&current_state, new_main_state));
ut_assert("new state: seatbelt", MAIN_STATE_SEATBELT == current_state.main_state);
ut_assert("new state: altctrl", MAIN_STATE_ALTCTL == current_state.main_state);
// MANUAL to SEATBELT, invalid local altitude.
// MANUAL to ALTCTRL, invalid local altitude.
current_state.main_state = MAIN_STATE_MANUAL;
current_state.condition_local_altitude_valid = false;
new_main_state = MAIN_STATE_SEATBELT;
new_main_state = MAIN_STATE_ALTCTL;
ut_assert("no transition: invalid local altitude",
TRANSITION_DENIED == main_state_transition(&current_state, new_main_state));
ut_assert("current state: manual", MAIN_STATE_MANUAL == current_state.main_state);
// MANUAL to EASY.
// MANUAL to POSCTRL.
current_state.main_state = MAIN_STATE_MANUAL;
current_state.condition_local_position_valid = true;
new_main_state = MAIN_STATE_EASY;
ut_assert("transition: manual to easy",
new_main_state = MAIN_STATE_POSCTL;
ut_assert("transition: manual to posctrl",
TRANSITION_CHANGED == main_state_transition(&current_state, new_main_state));
ut_assert("current state: easy", MAIN_STATE_EASY == current_state.main_state);
ut_assert("current state: posctrl", MAIN_STATE_POSCTL == current_state.main_state);
// MANUAL to EASY, invalid local position.
// MANUAL to POSCTRL, invalid local position.
current_state.main_state = MAIN_STATE_MANUAL;
current_state.condition_local_position_valid = false;
new_main_state = MAIN_STATE_EASY;
new_main_state = MAIN_STATE_POSCTL;
ut_assert("no transition: invalid position",
TRANSITION_DENIED == main_state_transition(&current_state, new_main_state));
ut_assert("current state: manual", MAIN_STATE_MANUAL == current_state.main_state);
src/modules/commander/gyro_calibration.cpp
+10 -8
View File
@@ -110,8 +110,9 @@ int do_gyro_calibration(int mavlink_fd)
gyro_scale.z_offset += gyro_report.z;
calibration_counter++;
if (calibration_counter % (calibration_count / 20) == 0)
if (calibration_counter % (calibration_count / 20) == 0) {
mavlink_log_info(mavlink_fd, CAL_PROGRESS_MSG, sensor_name, (calibration_counter * 100) / calibration_count);
}
} else {
poll_errcount++;
@@ -163,8 +164,9 @@ int do_gyro_calibration(int mavlink_fd)
/* apply new offsets */
fd = open(GYRO_DEVICE_PATH, 0);
if (OK != ioctl(fd, GYROIOCSSCALE, (long unsigned int)&gyro_scale))
if (OK != ioctl(fd, GYROIOCSSCALE, (long unsigned int)&gyro_scale)) {
warn("WARNING: failed to apply new offsets for gyro");
}
close(fd);
@@ -178,9 +180,9 @@ int do_gyro_calibration(int mavlink_fd)
float mag_last = -atan2f(raw.magnetometer_ga[1], raw.magnetometer_ga[0]);
if (mag_last > M_PI_F) mag_last -= 2 * M_PI_F;
if (mag_last > M_PI_F) { mag_last -= 2 * M_PI_F; }
if (mag_last < -M_PI_F) mag_last += 2 * M_PI_F;
if (mag_last < -M_PI_F) { mag_last += 2 * M_PI_F; }
uint64_t last_time = hrt_absolute_time();
@@ -220,15 +222,15 @@ int do_gyro_calibration(int mavlink_fd)
//float mag = -atan2f(magNav(1),magNav(0));
float mag = -atan2f(raw.magnetometer_ga[1], raw.magnetometer_ga[0]);
if (mag > M_PI_F) mag -= 2 * M_PI_F;
if (mag > M_PI_F) { mag -= 2 * M_PI_F; }
if (mag < -M_PI_F) mag += 2 * M_PI_F;
if (mag < -M_PI_F) { mag += 2 * M_PI_F; }
float diff = mag - mag_last;
if (diff > M_PI_F) diff -= 2 * M_PI_F;
if (diff > M_PI_F) { diff -= 2 * M_PI_F; }
if (diff < -M_PI_F) diff += 2 * M_PI_F;
if (diff < -M_PI_F) { diff += 2 * M_PI_F; }
baseline_integral += diff;
mag_last = mag;
src/modules/commander/mag_calibration.cpp
+36 -11
View File
@@ -72,7 +72,7 @@ int do_mag_calibration(int mavlink_fd)
uint64_t calibration_interval = 45 * 1000 * 1000;
/* maximum 500 values */
const unsigned int calibration_maxcount = 500;
const unsigned int calibration_maxcount = 240;
unsigned int calibration_counter;
struct mag_scale mscale_null = {
@@ -121,9 +121,24 @@ int do_mag_calibration(int mavlink_fd)
if (x == NULL || y == NULL || z == NULL) {
mavlink_log_critical(mavlink_fd, "ERROR: out of memory");
/* clean up */
if (x != NULL) {
free(x);
}
if (y != NULL) {
free(y);
}
if (z != NULL) {
free(z);
}
res = ERROR;
return res;
}
} else {
/* exit */
return ERROR;
@@ -163,8 +178,9 @@ int do_mag_calibration(int mavlink_fd)
calibration_counter++;
if (calibration_counter % (calibration_maxcount / 20) == 0)
if (calibration_counter % (calibration_maxcount / 20) == 0) {
mavlink_log_info(mavlink_fd, CAL_PROGRESS_MSG, sensor_name, 20 + (calibration_counter * 50) / calibration_maxcount);
}
} else {
poll_errcount++;
@@ -198,14 +214,17 @@ int do_mag_calibration(int mavlink_fd)
}
}
if (x != NULL)
if (x != NULL) {
free(x);
}
if (y != NULL)
if (y != NULL) {
free(y);
}
if (z != NULL)
if (z != NULL) {
free(z);
}
if (res == OK) {
/* apply calibration and set parameters */
@@ -234,23 +253,29 @@ int do_mag_calibration(int mavlink_fd)
if (res == OK) {
/* set parameters */
if (param_set(param_find("SENS_MAG_XOFF"), &(mscale.x_offset)))
if (param_set(param_find("SENS_MAG_XOFF"), &(mscale.x_offset))) {
res = ERROR;
}
if (param_set(param_find("SENS_MAG_YOFF"), &(mscale.y_offset)))
if (param_set(param_find("SENS_MAG_YOFF"), &(mscale.y_offset))) {
res = ERROR;
}
if (param_set(param_find("SENS_MAG_ZOFF"), &(mscale.z_offset)))
if (param_set(param_find("SENS_MAG_ZOFF"), &(mscale.z_offset))) {
res = ERROR;
}
if (param_set(param_find("SENS_MAG_XSCALE"), &(mscale.x_scale)))
if (param_set(param_find("SENS_MAG_XSCALE"), &(mscale.x_scale))) {
res = ERROR;
}
if (param_set(param_find("SENS_MAG_YSCALE"), &(mscale.y_scale)))
if (param_set(param_find("SENS_MAG_YSCALE"), &(mscale.y_scale))) {
res = ERROR;
}
if (param_set(param_find("SENS_MAG_ZSCALE"), &(mscale.z_scale)))
if (param_set(param_find("SENS_MAG_ZSCALE"), &(mscale.z_scale))) {
res = ERROR;
}
if (res != OK) {
mavlink_log_critical(mavlink_fd, CAL_FAILED_SET_PARAMS_MSG);
src/modules/commander/module.mk
+4
View File
@@ -47,3 +47,7 @@ SRCS = commander.cpp \
baro_calibration.cpp \
rc_calibration.cpp \
airspeed_calibration.cpp
MODULE_STACKSIZE = 1200
MAXOPTIMIZATION = -Os
src/modules/commander/px4_custom_mode.h
+3 -2
View File
@@ -12,9 +12,10 @@
enum PX4_CUSTOM_MAIN_MODE {
PX4_CUSTOM_MAIN_MODE_MANUAL = 1,
PX4_CUSTOM_MAIN_MODE_SEATBELT,
PX4_CUSTOM_MAIN_MODE_EASY,
PX4_CUSTOM_MAIN_MODE_ALTCTL,
PX4_CUSTOM_MAIN_MODE_POSCTL,
PX4_CUSTOM_MAIN_MODE_AUTO,
PX4_CUSTOM_MAIN_MODE_ACRO,
};
enum PX4_CUSTOM_SUB_MODE_AUTO {
src/modules/commander/rc_calibration.cpp
+3 -3
View File
@@ -69,11 +69,11 @@ int do_trim_calibration(int mavlink_fd)
orb_copy(ORB_ID(manual_control_setpoint), sub_man, &sp);
/* set parameters */
float p = sp.roll;
float p = sp.y;
param_set(param_find("TRIM_ROLL"), &p);
p = sp.pitch;
p = sp.x;
param_set(param_find("TRIM_PITCH"), &p);
p = sp.yaw;
p = sp.r;
param_set(param_find("TRIM_YAW"), &p);
/* store to permanent storage */
src/modules/commander/state_machine_helper.cpp
+91 -73
View File
@@ -75,38 +75,38 @@ static bool failsafe_state_changed = true;
// though the transition is marked as true additional checks must be made. See arming_state_transition
// code for those checks.
static const bool arming_transitions[ARMING_STATE_MAX][ARMING_STATE_MAX] = {
// INIT, STANDBY, ARMED, ARMED_ERROR, STANDBY_ERROR, REBOOT, IN_AIR_RESTORE
{ /* ARMING_STATE_INIT */ true, true, false, false, false, false, false },
{ /* ARMING_STATE_STANDBY */ true, true, true, true, false, false, false },
{ /* ARMING_STATE_ARMED */ false, true, true, false, false, false, true },
{ /* ARMING_STATE_ARMED_ERROR */ false, false, true, true, false, false, false },
{ /* ARMING_STATE_STANDBY_ERROR */ true, true, false, true, true, false, false },
{ /* ARMING_STATE_REBOOT */ true, true, false, false, true, true, true },
{ /* ARMING_STATE_IN_AIR_RESTORE */ false, false, false, false, false, false, false }, // NYI
// INIT, STANDBY, ARMED, ARMED_ERROR, STANDBY_ERROR, REBOOT, IN_AIR_RESTORE
{ /* ARMING_STATE_INIT */ true, true, false, false, false, false, false },
{ /* ARMING_STATE_STANDBY */ true, true, true, true, false, false, false },
{ /* ARMING_STATE_ARMED */ false, true, true, false, false, false, true },
{ /* ARMING_STATE_ARMED_ERROR */ false, false, true, true, false, false, false },
{ /* ARMING_STATE_STANDBY_ERROR */ true, true, false, true, true, false, false },
{ /* ARMING_STATE_REBOOT */ true, true, false, false, true, true, true },
{ /* ARMING_STATE_IN_AIR_RESTORE */ false, false, false, false, false, false, false }, // NYI
};
// You can index into the array with an arming_state_t in order to get it's textual representation
static const char* state_names[ARMING_STATE_MAX] = {
"ARMING_STATE_INIT",
"ARMING_STATE_STANDBY",
"ARMING_STATE_ARMED",
"ARMING_STATE_ARMED_ERROR",
"ARMING_STATE_STANDBY_ERROR",
"ARMING_STATE_REBOOT",
"ARMING_STATE_IN_AIR_RESTORE",
static const char *state_names[ARMING_STATE_MAX] = {
"ARMING_STATE_INIT",
"ARMING_STATE_STANDBY",
"ARMING_STATE_ARMED",
"ARMING_STATE_ARMED_ERROR",
"ARMING_STATE_STANDBY_ERROR",
"ARMING_STATE_REBOOT",
"ARMING_STATE_IN_AIR_RESTORE",
};
transition_result_t
arming_state_transition(struct vehicle_status_s *status, /// current vehicle status
const struct safety_s *safety, /// current safety settings
arming_state_t new_arming_state, /// arming state requested
struct actuator_armed_s *armed, /// current armed status
const int mavlink_fd) /// mavlink fd for error reporting, 0 for none
const struct safety_s *safety, /// current safety settings
arming_state_t new_arming_state, /// arming state requested
struct actuator_armed_s *armed, /// current armed status
const int mavlink_fd) /// mavlink fd for error reporting, 0 for none
{
// Double check that our static arrays are still valid
ASSERT(ARMING_STATE_INIT == 0);
ASSERT(ARMING_STATE_IN_AIR_RESTORE == ARMING_STATE_MAX - 1);
// Double check that our static arrays are still valid
ASSERT(ARMING_STATE_INIT == 0);
ASSERT(ARMING_STATE_IN_AIR_RESTORE == ARMING_STATE_MAX - 1);
/*
* Perform an atomic state update
*/
@@ -117,63 +117,70 @@ arming_state_transition(struct vehicle_status_s *status, /// current
/* only check transition if the new state is actually different from the current one */
if (new_arming_state == status->arming_state) {
ret = TRANSITION_NOT_CHANGED;
} else {
/* enforce lockdown in HIL */
if (status->hil_state == HIL_STATE_ON) {
armed->lockdown = true;
} else {
armed->lockdown = false;
}
// Check that we have a valid state transition
bool valid_transition = arming_transitions[new_arming_state][status->arming_state];
if (valid_transition) {
// We have a good transition. Now perform any secondary validation.
if (new_arming_state == ARMING_STATE_ARMED) {
// Fail transition if we need safety switch press
// Allow if coming from in air restore
// Allow if HIL_STATE_ON
if (status->arming_state != ARMING_STATE_IN_AIR_RESTORE && status->hil_state == HIL_STATE_OFF && safety->safety_switch_available && !safety->safety_off) {
if (mavlink_fd) {
mavlink_log_critical(mavlink_fd, "NOT ARMING: Press safety switch first.");
}
valid_transition = false;
}
} else if (new_arming_state == ARMING_STATE_STANDBY && status->arming_state == ARMING_STATE_ARMED_ERROR) {
new_arming_state = ARMING_STATE_STANDBY_ERROR;
}
}
// HIL can always go to standby
if (status->hil_state == HIL_STATE_ON && new_arming_state == ARMING_STATE_STANDBY) {
valid_transition = true;
}
/* Sensors need to be initialized for STANDBY state */
if (new_arming_state == ARMING_STATE_STANDBY && !status->condition_system_sensors_initialized) {
valid_transition = false;
}
// Finish up the state transition
if (valid_transition) {
armed->armed = new_arming_state == ARMING_STATE_ARMED || new_arming_state == ARMING_STATE_ARMED_ERROR;
armed->ready_to_arm = new_arming_state == ARMING_STATE_ARMED || new_arming_state == ARMING_STATE_STANDBY;
ret = TRANSITION_CHANGED;
status->arming_state = new_arming_state;
arming_state_changed = true;
}
}
// Check that we have a valid state transition
bool valid_transition = arming_transitions[new_arming_state][status->arming_state];
if (valid_transition) {
// We have a good transition. Now perform any secondary validation.
if (new_arming_state == ARMING_STATE_ARMED) {
// Fail transition if we need safety switch press
// Allow if coming from in air restore
// Allow if HIL_STATE_ON
if (status->arming_state != ARMING_STATE_IN_AIR_RESTORE && status->hil_state == HIL_STATE_OFF && safety->safety_switch_available && !safety->safety_off) {
if (mavlink_fd) {
mavlink_log_critical(mavlink_fd, "#audio: NOT ARMING: Press safety switch first.");
}
valid_transition = false;
}
} else if (new_arming_state == ARMING_STATE_STANDBY && status->arming_state == ARMING_STATE_ARMED_ERROR) {
new_arming_state = ARMING_STATE_STANDBY_ERROR;
}
}
// HIL can always go to standby
if (status->hil_state == HIL_STATE_ON && new_arming_state == ARMING_STATE_STANDBY) {
valid_transition = true;
}
/* Sensors need to be initialized for STANDBY state */
if (new_arming_state == ARMING_STATE_STANDBY && !status->condition_system_sensors_initialized) {
valid_transition = false;
}
// Finish up the state transition
if (valid_transition) {
armed->armed = new_arming_state == ARMING_STATE_ARMED || new_arming_state == ARMING_STATE_ARMED_ERROR;
armed->ready_to_arm = new_arming_state == ARMING_STATE_ARMED || new_arming_state == ARMING_STATE_STANDBY;
ret = TRANSITION_CHANGED;
status->arming_state = new_arming_state;
arming_state_changed = true;
}
}
/* end of atomic state update */
irqrestore(flags);
if (ret == TRANSITION_DENIED) {
static const char* errMsg = "Invalid arming transition from %s to %s";
if (mavlink_fd) {
mavlink_log_critical(mavlink_fd, errMsg, state_names[status->arming_state], state_names[new_arming_state]);
}
warnx(errMsg, state_names[status->arming_state], state_names[new_arming_state]);
}
if (ret == TRANSITION_DENIED) {
static const char *errMsg = "Invalid arming transition from %s to %s";
if (mavlink_fd) {
mavlink_log_critical(mavlink_fd, errMsg, state_names[status->arming_state], state_names[new_arming_state]);
}
warnx(errMsg, state_names[status->arming_state], state_names[new_arming_state]);
}
return ret;
}
@@ -215,7 +222,11 @@ main_state_transition(struct vehicle_status_s *status, main_state_t new_main_sta
ret = TRANSITION_CHANGED;
break;
case MAIN_STATE_SEATBELT:
case MAIN_STATE_ACRO:
ret = TRANSITION_CHANGED;
break;
case MAIN_STATE_ALTCTL:
/* need at minimum altitude estimate */
if (!status->is_rotary_wing ||
@@ -226,7 +237,7 @@ main_state_transition(struct vehicle_status_s *status, main_state_t new_main_sta
break;
case MAIN_STATE_EASY:
case MAIN_STATE_POSCTL:
/* need at minimum local position estimate */
if (status->condition_local_position_valid ||
@@ -301,7 +312,7 @@ int hil_state_transition(hil_state_t new_state, int status_pub, struct vehicle_s
case HIL_STATE_OFF:
/* we're in HIL and unexpected things can happen if we disable HIL now */
mavlink_log_critical(mavlink_fd, "Not switching off HIL (safety)");
mavlink_log_critical(mavlink_fd, "#audio: Not switching off HIL (safety)");
valid_transition = false;
break;
@@ -320,6 +331,7 @@ int hil_state_transition(hil_state_t new_state, int status_pub, struct vehicle_s
/* list directory */
DIR *d;
d = opendir("/dev");
if (d) {
struct dirent *direntry;
@@ -331,26 +343,32 @@ int hil_state_transition(hil_state_t new_state, int status_pub, struct vehicle_s
if (!strncmp("tty", direntry->d_name, 3)) {
continue;
}
/* skip mtd devices */
if (!strncmp("mtd", direntry->d_name, 3)) {
continue;
}
/* skip ram devices */
if (!strncmp("ram", direntry->d_name, 3)) {
continue;
}
/* skip MMC devices */
if (!strncmp("mmc", direntry->d_name, 3)) {
continue;
}
/* skip mavlink */
if (!strcmp("mavlink", direntry->d_name)) {
continue;
}
/* skip console */
if (!strcmp("console", direntry->d_name)) {
continue;
}
/* skip null */
if (!strcmp("null", direntry->d_name)) {
continue;
src/modules/dataman/dataman.c
+35 -17
View File
@@ -1,10 +1,6 @@
/****************************************************************************
*
* Copyright (c) 2013 PX4 Development Team. All rights reserved.
* Author: Jean Cyr
* Lorenz Meier
* Julian Oes
* Thomas Gubler
* Copyright (c) 2013, 2014 PX4 Development Team. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
@@ -37,6 +33,11 @@
/**
* @file dataman.c
* DATAMANAGER driver.
*
* @author Jean Cyr
* @author Lorenz Meier
* @author Julian Oes
* @author Thomas Gubler
*/
#include <nuttx/config.h>
@@ -62,7 +63,7 @@ __EXPORT ssize_t dm_write(dm_item_t item, unsigned char index, dm_persitence_t
__EXPORT int dm_clear(dm_item_t item);
__EXPORT int dm_restart(dm_reset_reason restart_type);
/* Types of function calls supported by the worker task */
/** Types of function calls supported by the worker task */
typedef enum {
dm_write_func = 0,
dm_read_func,
@@ -71,11 +72,12 @@ typedef enum {
dm_number_of_funcs
} dm_function_t;
/* Work task work item */
/** Work task work item */
typedef struct {
sq_entry_t link; /**< list linkage */
sem_t wait_sem;
dm_function_t func;
unsigned char first;
unsigned char func;
ssize_t result;
union {
struct {
@@ -100,6 +102,8 @@ typedef struct {
};
} work_q_item_t;
const size_t k_work_item_allocation_chunk_size = 8;
/* Usage statistics */
static unsigned g_func_counts[dm_number_of_funcs];
@@ -177,9 +181,23 @@ create_work_item(void)
unlock_queue(&g_free_q);
/* If we there weren't any free items then obtain memory for a new one */
if (item == NULL)
item = (work_q_item_t *)malloc(sizeof(work_q_item_t));
/* If we there weren't any free items then obtain memory for a new ones */
if (item == NULL) {
item = (work_q_item_t *)malloc(k_work_item_allocation_chunk_size * sizeof(work_q_item_t));
if (item) {
item->first = 1;
lock_queue(&g_free_q);
for (int i = 1; i < k_work_item_allocation_chunk_size; i++) {
(item + i)->first = 0;
sq_addfirst(&(item + i)->link, &(g_free_q.q));
}
/* Update the queue size and potentially the maximum queue size */
g_free_q.size += k_work_item_allocation_chunk_size - 1;
if (g_free_q.size > g_free_q.max_size)
g_free_q.max_size = g_free_q.size;
unlock_queue(&g_free_q);
}
}
/* If we got one then lock the item*/
if (item)
@@ -411,7 +429,7 @@ _clear(dm_item_t item)
return result;
}
/* Tell the data manager about the type of the last reset */
/** Tell the data manager about the type of the last reset */
static int
_restart(dm_reset_reason reason)
{
@@ -480,7 +498,7 @@ _restart(dm_reset_reason reason)
return result;
}
/* write to the data manager file */
/** Write to the data manager file */
__EXPORT ssize_t
dm_write(dm_item_t item, unsigned char index, dm_persitence_t persistence, const void *buf, size_t count)
{
@@ -505,7 +523,7 @@ dm_write(dm_item_t item, unsigned char index, dm_persitence_t persistence, const
return (ssize_t)enqueue_work_item_and_wait_for_result(work);
}
/* Retrieve from the data manager file */
/** Retrieve from the data manager file */
__EXPORT ssize_t
dm_read(dm_item_t item, unsigned char index, void *buf, size_t count)
{
@@ -717,8 +735,8 @@ task_main(int argc, char *argv[])
for (;;) {
if ((work = (work_q_item_t *)sq_remfirst(&(g_free_q.q))) == NULL)
break;
free(work);
if (work->first)
free(work);
}
destroy_q(&g_work_q);
@@ -736,7 +754,7 @@ start(void)
sem_init(&g_init_sema, 1, 0);
/* start the worker thread */
if ((task = task_spawn_cmd("dataman", SCHED_DEFAULT, SCHED_PRIORITY_MAX - 5, 2048, task_main, NULL)) <= 0) {
if ((task = task_spawn_cmd("dataman", SCHED_DEFAULT, SCHED_PRIORITY_MAX - 5, 2000, task_main, NULL)) <= 0) {
warn("task start failed");
return -1;
}
src/modules/dataman/dataman.h
+10 -10
View File
@@ -1,6 +1,6 @@
/****************************************************************************
*
* Copyright (c) 2013 PX4 Development Team. All rights reserved.
* Copyright (c) 2013, 2014 PX4 Development Team. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
@@ -46,7 +46,7 @@
extern "C" {
#endif
/* Types of items that the data manager can store */
/** Types of items that the data manager can store */
typedef enum {
DM_KEY_SAFE_POINTS = 0, /* Safe points coordinates, safe point 0 is home point */
DM_KEY_FENCE_POINTS, /* Fence vertex coordinates */
@@ -56,7 +56,7 @@ extern "C" {
DM_KEY_NUM_KEYS /* Total number of item types defined */
} dm_item_t;
/* The maximum number of instances for each item type */
/** The maximum number of instances for each item type */
enum {
DM_KEY_SAFE_POINTS_MAX = 8,
DM_KEY_FENCE_POINTS_MAX = GEOFENCE_MAX_VERTICES,
@@ -65,24 +65,24 @@ extern "C" {
DM_KEY_WAYPOINTS_ONBOARD_MAX = NUM_MISSIONS_SUPPORTED
};
/* Data persistence levels */
/** Data persistence levels */
typedef enum {
DM_PERSIST_POWER_ON_RESET = 0, /* Data survives all resets */
DM_PERSIST_IN_FLIGHT_RESET, /* Data survives in-flight resets only */
DM_PERSIST_VOLATILE /* Data does not survive resets */
} dm_persitence_t;
/* The reason for the last reset */
/** The reason for the last reset */
typedef enum {
DM_INIT_REASON_POWER_ON = 0, /* Data survives resets */
DM_INIT_REASON_IN_FLIGHT, /* Data survives in-flight resets only */
DM_INIT_REASON_VOLATILE /* Data does not survive reset */
} dm_reset_reason;
/* Maximum size in bytes of a single item instance */
/** Maximum size in bytes of a single item instance */
#define DM_MAX_DATA_SIZE 124
/* Retrieve from the data manager store */
/** Retrieve from the data manager store */
__EXPORT ssize_t
dm_read(
dm_item_t item, /* The item type to retrieve */
@@ -91,7 +91,7 @@ extern "C" {
size_t buflen /* Length in bytes of data to retrieve */
);
/* write to the data manager store */
/** write to the data manager store */
__EXPORT ssize_t
dm_write(
dm_item_t item, /* The item type to store */
@@ -101,13 +101,13 @@ extern "C" {
size_t buflen /* Length in bytes of data to retrieve */
);
/* Erase all items of this type */
/** Erase all items of this type */
__EXPORT int
dm_clear(
dm_item_t item /* The item type to clear */
);
/* Tell the data manager about the type of the last reset */
/** Tell the data manager about the type of the last reset */
__EXPORT int
dm_restart(
dm_reset_reason restart_type /* The last reset type */
src/modules/dataman/module.mk
+2
View File
@@ -38,3 +38,5 @@
MODULE_COMMAND = dataman
SRCS = dataman.c
MODULE_STACKSIZE = 1200
src/modules/fw_att_pos_estimator/fw_att_pos_estimator_main.cpp → src/modules/ekf_att_pos_estimator/ekf_att_pos_estimator_main.cpp
+359 -106
View File
@@ -32,7 +32,7 @@
****************************************************************************/
/**
* @file fw_att_pos_estimator_main.cpp
* @file ekf_att_pos_estimator_main.cpp
* Implementation of the attitude and position estimator.
*
* @author Paul Riseborough <p_riseborough@live.com.au>
@@ -73,6 +73,7 @@
#include <uORB/topics/parameter_update.h>
#include <uORB/topics/estimator_status.h>
#include <uORB/topics/actuator_armed.h>
#include <uORB/topics/home_position.h>
#include <systemlib/param/param.h>
#include <systemlib/err.h>
#include <geo/geo.h>
@@ -90,20 +91,19 @@
*
* @ingroup apps
*/
extern "C" __EXPORT int fw_att_pos_estimator_main(int argc, char *argv[]);
extern "C" __EXPORT int ekf_att_pos_estimator_main(int argc, char *argv[]);
__EXPORT uint32_t millis();
static uint64_t last_run = 0;
static uint64_t IMUmsec = 0;
static const uint64_t FILTER_INIT_DELAY = 1 * 1000 * 1000;
uint32_t millis()
{
return IMUmsec;
}
static void print_status();
class FixedwingEstimator
{
public:
@@ -152,6 +152,7 @@ private:
int _params_sub; /**< notification of parameter updates */
int _manual_control_sub; /**< notification of manual control updates */
int _mission_sub;
int _home_sub; /**< home position as defined by commander / user */
orb_advert_t _att_pub; /**< vehicle attitude */
orb_advert_t _global_pos_pub; /**< global position */
@@ -191,7 +192,13 @@ private:
perf_counter_t _perf_airspeed; ///<local performance counter for airspeed updates
bool _initialized;
bool _baro_init;
bool _gps_initialized;
uint64_t _gps_start_time;
uint64_t _filter_start_time;
bool _gyro_valid;
bool _accel_valid;
bool _mag_valid;
int _mavlink_fd;
@@ -201,6 +208,19 @@ private:
int32_t height_delay_ms;
int32_t mag_delay_ms;
int32_t tas_delay_ms;
float velne_noise;
float veld_noise;
float posne_noise;
float posd_noise;
float mag_noise;
float gyro_pnoise;
float acc_pnoise;
float gbias_pnoise;
float abias_pnoise;
float mage_pnoise;
float magb_pnoise;
float eas_noise;
float pos_stddev_threshold;
} _parameters; /**< local copies of interesting parameters */
struct {
@@ -209,6 +229,19 @@ private:
param_t height_delay_ms;
param_t mag_delay_ms;
param_t tas_delay_ms;
param_t velne_noise;
param_t veld_noise;
param_t posne_noise;
param_t posd_noise;
param_t mag_noise;
param_t gyro_pnoise;
param_t acc_pnoise;
param_t gbias_pnoise;
param_t abias_pnoise;
param_t mage_pnoise;
param_t magb_pnoise;
param_t eas_noise;
param_t pos_stddev_threshold;
} _parameter_handles; /**< handles for interesting parameters */
AttPosEKF *_ekf;
@@ -237,7 +270,7 @@ private:
/**
* Main sensor collection task.
*/
void task_main() __attribute__((noreturn));
void task_main();
};
namespace estimator
@@ -271,6 +304,8 @@ FixedwingEstimator::FixedwingEstimator() :
_vstatus_sub(-1),
_params_sub(-1),
_manual_control_sub(-1),
_mission_sub(-1),
_home_sub(-1),
/* publications */
_att_pub(-1),
@@ -278,32 +313,68 @@ FixedwingEstimator::FixedwingEstimator() :
_local_pos_pub(-1),
_estimator_status_pub(-1),
_att({}),
_gyro({}),
_accel({}),
_mag({}),
_airspeed({}),
_baro({}),
_vstatus({}),
_global_pos({}),
_local_pos({}),
_gps({}),
_gyro_offsets({}),
_accel_offsets({}),
_mag_offsets({}),
#ifdef SENSOR_COMBINED_SUB
_sensor_combined({}),
#endif
_baro_ref(0.0f),
_baro_gps_offset(0.0f),
/* performance counters */
_loop_perf(perf_alloc(PC_COUNT, "fw_att_pos_estimator")),
_perf_gyro(perf_alloc(PC_COUNT, "fw_ekf_gyro_upd")),
_perf_accel(perf_alloc(PC_COUNT, "fw_ekf_accel_upd")),
_perf_mag(perf_alloc(PC_COUNT, "fw_ekf_mag_upd")),
_perf_gps(perf_alloc(PC_COUNT, "fw_ekf_gps_upd")),
_perf_baro(perf_alloc(PC_COUNT, "fw_ekf_baro_upd")),
_perf_airspeed(perf_alloc(PC_COUNT, "fw_ekf_aspd_upd")),
_loop_perf(perf_alloc(PC_COUNT, "ekf_att_pos_estimator")),
_perf_gyro(perf_alloc(PC_COUNT, "ekf_att_pos_gyro_upd")),
_perf_accel(perf_alloc(PC_COUNT, "ekf_att_pos_accel_upd")),
_perf_mag(perf_alloc(PC_COUNT, "ekf_att_pos_mag_upd")),
_perf_gps(perf_alloc(PC_COUNT, "ekf_att_pos_gps_upd")),
_perf_baro(perf_alloc(PC_COUNT, "ekf_att_pos_baro_upd")),
_perf_airspeed(perf_alloc(PC_COUNT, "ekf_att_pos_aspd_upd")),
/* states */
_initialized(false),
_baro_init(false),
_gps_initialized(false),
_gyro_valid(false),
_accel_valid(false),
_mag_valid(false),
_mavlink_fd(-1),
_ekf(nullptr)
{
_mavlink_fd = open(MAVLINK_LOG_DEVICE, 0);
last_run = hrt_absolute_time();
_parameter_handles.vel_delay_ms = param_find("PE_VEL_DELAY_MS");
_parameter_handles.pos_delay_ms = param_find("PE_POS_DELAY_MS");
_parameter_handles.height_delay_ms = param_find("PE_HGT_DELAY_MS");
_parameter_handles.mag_delay_ms = param_find("PE_MAG_DELAY_MS");
_parameter_handles.tas_delay_ms = param_find("PE_TAS_DELAY_MS");
_parameter_handles.velne_noise = param_find("PE_VELNE_NOISE");
_parameter_handles.veld_noise = param_find("PE_VELD_NOISE");
_parameter_handles.posne_noise = param_find("PE_POSNE_NOISE");
_parameter_handles.posd_noise = param_find("PE_POSD_NOISE");
_parameter_handles.mag_noise = param_find("PE_MAG_NOISE");
_parameter_handles.gyro_pnoise = param_find("PE_GYRO_PNOISE");
_parameter_handles.acc_pnoise = param_find("PE_ACC_PNOISE");
_parameter_handles.gbias_pnoise = param_find("PE_GBIAS_PNOISE");
_parameter_handles.abias_pnoise = param_find("PE_ABIAS_PNOISE");
_parameter_handles.mage_pnoise = param_find("PE_MAGE_PNOISE");
_parameter_handles.magb_pnoise = param_find("PE_MAGB_PNOISE");
_parameter_handles.eas_noise = param_find("PE_EAS_NOISE");
_parameter_handles.pos_stddev_threshold = param_find("PE_POSDEV_INIT");
/* fetch initial parameter values */
parameters_update();
@@ -317,6 +388,10 @@ FixedwingEstimator::FixedwingEstimator() :
if (fd > 0) {
res = ioctl(fd, GYROIOCGSCALE, (long unsigned int)&_gyro_offsets);
close(fd);
if (res) {
warnx("G SCALE FAIL");
}
}
fd = open(ACCEL_DEVICE_PATH, O_RDONLY);
@@ -324,6 +399,10 @@ FixedwingEstimator::FixedwingEstimator() :
if (fd > 0) {
res = ioctl(fd, ACCELIOCGSCALE, (long unsigned int)&_accel_offsets);
close(fd);
if (res) {
warnx("A SCALE FAIL");
}
}
fd = open(MAG_DEVICE_PATH, O_RDONLY);
@@ -331,6 +410,10 @@ FixedwingEstimator::FixedwingEstimator() :
if (fd > 0) {
res = ioctl(fd, MAGIOCGSCALE, (long unsigned int)&_mag_offsets);
close(fd);
if (res) {
warnx("M SCALE FAIL");
}
}
}
@@ -368,6 +451,37 @@ FixedwingEstimator::parameters_update()
param_get(_parameter_handles.height_delay_ms, &(_parameters.height_delay_ms));
param_get(_parameter_handles.mag_delay_ms, &(_parameters.mag_delay_ms));
param_get(_parameter_handles.tas_delay_ms, &(_parameters.tas_delay_ms));
param_get(_parameter_handles.velne_noise, &(_parameters.velne_noise));
param_get(_parameter_handles.veld_noise, &(_parameters.veld_noise));
param_get(_parameter_handles.posne_noise, &(_parameters.posne_noise));
param_get(_parameter_handles.posd_noise, &(_parameters.posd_noise));
param_get(_parameter_handles.mag_noise, &(_parameters.mag_noise));
param_get(_parameter_handles.gyro_pnoise, &(_parameters.gyro_pnoise));
param_get(_parameter_handles.acc_pnoise, &(_parameters.acc_pnoise));
param_get(_parameter_handles.gbias_pnoise, &(_parameters.gbias_pnoise));
param_get(_parameter_handles.abias_pnoise, &(_parameters.abias_pnoise));
param_get(_parameter_handles.mage_pnoise, &(_parameters.mage_pnoise));
param_get(_parameter_handles.magb_pnoise, &(_parameters.magb_pnoise));
param_get(_parameter_handles.eas_noise, &(_parameters.eas_noise));
param_get(_parameter_handles.pos_stddev_threshold, &(_parameters.pos_stddev_threshold));
if (_ekf) {
// _ekf->yawVarScale = 1.0f;
// _ekf->windVelSigma = 0.1f;
_ekf->dAngBiasSigma = _parameters.gbias_pnoise;
_ekf->dVelBiasSigma = _parameters.abias_pnoise;
_ekf->magEarthSigma = _parameters.mage_pnoise;
_ekf->magBodySigma = _parameters.magb_pnoise;
// _ekf->gndHgtSigma = 0.02f;
_ekf->vneSigma = _parameters.velne_noise;
_ekf->vdSigma = _parameters.veld_noise;
_ekf->posNeSigma = _parameters.posne_noise;
_ekf->posDSigma = _parameters.posd_noise;
_ekf->magMeasurementSigma = _parameters.mag_noise;
_ekf->gyroProcessNoise = _parameters.gyro_pnoise;
_ekf->accelProcessNoise = _parameters.acc_pnoise;
_ekf->airspeedMeasurementSigma = _parameters.eas_noise;
}
return OK;
}
@@ -392,13 +506,14 @@ FixedwingEstimator::task_main_trampoline(int argc, char *argv[])
estimator::g_estimator->task_main();
}
float dt = 0.0f; // time lapsed since last covariance prediction
void
FixedwingEstimator::task_main()
{
_mavlink_fd = open(MAVLINK_LOG_DEVICE, 0);
_ekf = new AttPosEKF();
float dt = 0.0f; // time lapsed since last covariance prediction
_filter_start_time = hrt_absolute_time();
if (!_ekf) {
errx(1, "failed allocating EKF filter - out of RAM!");
@@ -412,6 +527,7 @@ FixedwingEstimator::task_main()
_gps_sub = orb_subscribe(ORB_ID(vehicle_gps_position));
_vstatus_sub = orb_subscribe(ORB_ID(vehicle_status));
_params_sub = orb_subscribe(ORB_ID(parameter_update));
_home_sub = orb_subscribe(ORB_ID(home_position));
/* rate limit vehicle status updates to 5Hz */
orb_set_interval(_vstatus_sub, 200);
@@ -431,26 +547,11 @@ FixedwingEstimator::task_main()
orb_set_interval(_sensor_combined_sub, 4);
#endif
/* sets also parameters in the EKF object */
parameters_update();
/* set initial filter state */
_ekf->fuseVelData = false;
_ekf->fusePosData = false;
_ekf->fuseHgtData = false;
_ekf->fuseMagData = false;
_ekf->fuseVtasData = false;
_ekf->statesInitialised = false;
/* initialize measurement data */
_ekf->VtasMeas = 0.0f;
Vector3f lastAngRate = {0.0f, 0.0f, 0.0f};
Vector3f lastAccel = {0.0f, 0.0f, -9.81f};
_ekf->dVelIMU.x = 0.0f;
_ekf->dVelIMU.y = 0.0f;
_ekf->dVelIMU.z = 0.0f;
_ekf->dAngIMU.x = 0.0f;
_ekf->dAngIMU.y = 0.0f;
_ekf->dAngIMU.z = 0.0f;
Vector3f lastAccel = {0.0f, 0.0f, 0.0f};
/* wakeup source(s) */
struct pollfd fds[2];
@@ -466,9 +567,8 @@ FixedwingEstimator::task_main()
fds[1].events = POLLIN;
#endif
hrt_abstime start_time = hrt_absolute_time();
bool newDataGps = false;
bool newHgtData = false;
bool newAdsData = false;
bool newDataMag = false;
@@ -503,19 +603,52 @@ FixedwingEstimator::task_main()
if (fds[1].revents & POLLIN) {
/* check vehicle status for changes to publication state */
bool prev_hil = (_vstatus.hil_state == HIL_STATE_ON);
vehicle_status_poll();
bool accel_updated;
bool mag_updated;
hrt_abstime last_sensor_timestamp;
perf_count(_perf_gyro);
/* Reset baro reference if switching to HIL, reset sensor states */
if (!prev_hil && (_vstatus.hil_state == HIL_STATE_ON)) {
/* system is in HIL now, wait for measurements to come in one last round */
usleep(60000);
#ifndef SENSOR_COMBINED_SUB
orb_copy(ORB_ID(sensor_gyro), _gyro_sub, &_gyro);
orb_copy(ORB_ID(sensor_accel), _accel_sub, &_accel);
orb_copy(ORB_ID(sensor_mag), _mag_sub, &_mag);
#else
/* now read all sensor publications to ensure all real sensor data is purged */
orb_copy(ORB_ID(sensor_combined), _sensor_combined_sub, &_sensor_combined);
#endif
/* set sensors to de-initialized state */
_gyro_valid = false;
_accel_valid = false;
_mag_valid = false;
_baro_init = false;
_gps_initialized = false;
last_sensor_timestamp = hrt_absolute_time();
last_run = last_sensor_timestamp;
_ekf->ZeroVariables();
_ekf->dtIMU = 0.01f;
_filter_start_time = last_sensor_timestamp;
/* now skip this loop and get data on the next one, which will also re-init the filter */
continue;
}
/**
* PART ONE: COLLECT ALL DATA
**/
hrt_abstime last_sensor_timestamp;
/* load local copies */
#ifndef SENSOR_COMBINED_SUB
orb_copy(ORB_ID(sensor_gyro), _gyro_sub, &_gyro);
@@ -529,27 +662,46 @@ FixedwingEstimator::task_main()
}
last_sensor_timestamp = _gyro.timestamp;
_ekf.IMUmsec = _gyro.timestamp / 1e3f;
IMUmsec = _gyro.timestamp / 1e3f;
float deltaT = (_gyro.timestamp - last_run) / 1e6f;
last_run = _gyro.timestamp;
/* guard against too large deltaT's */
if (deltaT > 1.0f)
if (!isfinite(deltaT) || deltaT > 1.0f || deltaT < 0.000001f) {
deltaT = 0.01f;
}
// Always store data, independent of init status
/* fill in last data set */
_ekf->dtIMU = deltaT;
_ekf->angRate.x = _gyro.x;
_ekf->angRate.y = _gyro.y;
_ekf->angRate.z = _gyro.z;
if (isfinite(_gyro.x) &&
isfinite(_gyro.y) &&
isfinite(_gyro.z)) {
_ekf->angRate.x = _gyro.x;
_ekf->angRate.y = _gyro.y;
_ekf->angRate.z = _gyro.z;
_ekf->accel.x = _accel.x;
_ekf->accel.y = _accel.y;
_ekf->accel.z = _accel.z;
if (!_gyro_valid) {
lastAngRate = _ekf->angRate;
}
_gyro_valid = true;
}
if (accel_updated) {
_ekf->accel.x = _accel.x;
_ekf->accel.y = _accel.y;
_ekf->accel.z = _accel.z;
if (!_accel_valid) {
lastAccel = _ekf->accel;
}
_accel_valid = true;
}
_ekf->dAngIMU = 0.5f * (angRate + lastAngRate) * dtIMU;
_ekf->lastAngRate = angRate;
@@ -565,6 +717,8 @@ FixedwingEstimator::task_main()
if (last_accel != _sensor_combined.accelerometer_timestamp) {
accel_updated = true;
} else {
accel_updated = false;
}
last_accel = _sensor_combined.accelerometer_timestamp;
@@ -575,23 +729,43 @@ FixedwingEstimator::task_main()
IMUmsec = _sensor_combined.timestamp / 1e3f;
float deltaT = (_sensor_combined.timestamp - last_run) / 1e6f;
last_run = _sensor_combined.timestamp;
/* guard against too large deltaT's */
if (deltaT > 1.0f || deltaT < 0.000001f)
if (!isfinite(deltaT) || deltaT > 1.0f || deltaT < 0.000001f) {
deltaT = 0.01f;
}
last_run = _sensor_combined.timestamp;
// Always store data, independent of init status
/* fill in last data set */
_ekf->dtIMU = deltaT;
_ekf->angRate.x = _sensor_combined.gyro_rad_s[0];
_ekf->angRate.y = _sensor_combined.gyro_rad_s[1];
_ekf->angRate.z = _sensor_combined.gyro_rad_s[2];
if (isfinite(_sensor_combined.gyro_rad_s[0]) &&
isfinite(_sensor_combined.gyro_rad_s[1]) &&
isfinite(_sensor_combined.gyro_rad_s[2])) {
_ekf->angRate.x = _sensor_combined.gyro_rad_s[0];
_ekf->angRate.y = _sensor_combined.gyro_rad_s[1];
_ekf->angRate.z = _sensor_combined.gyro_rad_s[2];
_ekf->accel.x = _sensor_combined.accelerometer_m_s2[0];
_ekf->accel.y = _sensor_combined.accelerometer_m_s2[1];
_ekf->accel.z = _sensor_combined.accelerometer_m_s2[2];
if (!_gyro_valid) {
lastAngRate = _ekf->angRate;
}
_gyro_valid = true;
}
if (accel_updated) {
_ekf->accel.x = _sensor_combined.accelerometer_m_s2[0];
_ekf->accel.y = _sensor_combined.accelerometer_m_s2[1];
_ekf->accel.z = _sensor_combined.accelerometer_m_s2[2];
if (!_accel_valid) {
lastAccel = _ekf->accel;
}
_accel_valid = true;
}
_ekf->dAngIMU = 0.5f * (_ekf->angRate + lastAngRate) * _ekf->dtIMU;
lastAngRate = _ekf->angRate;
@@ -635,11 +809,13 @@ FixedwingEstimator::task_main()
perf_count(_perf_gps);
if (_gps.fix_type < 3) {
gps_updated = false;
newDataGps = false;
} else {
/* store time of valid GPS measurement */
_gps_start_time = hrt_absolute_time();
/* check if we had a GPS outage for a long time */
if (hrt_elapsed_time(&last_gps) > 5 * 1000 * 1000) {
_ekf->ResetPosition();
@@ -660,6 +836,21 @@ FixedwingEstimator::task_main()
_ekf->gpsLat = math::radians(_gps.lat / (double)1e7);
_ekf->gpsLon = math::radians(_gps.lon / (double)1e7) - M_PI;
_ekf->gpsHgt = _gps.alt / 1e3f;
// if (_gps.s_variance_m_s > 0.25f && _gps.s_variance_m_s < 100.0f * 100.0f) {
// _ekf->vneSigma = sqrtf(_gps.s_variance_m_s);
// } else {
// _ekf->vneSigma = _parameters.velne_noise;
// }
// if (_gps.p_variance_m > 0.25f && _gps.p_variance_m < 100.0f * 100.0f) {
// _ekf->posNeSigma = sqrtf(_gps.p_variance_m);
// } else {
// _ekf->posNeSigma = _parameters.posne_noise;
// }
// warnx("vel: %8.4f pos: %8.4f", _gps.s_variance_m_s, _gps.p_variance_m);
newDataGps = true;
}
@@ -672,10 +863,17 @@ FixedwingEstimator::task_main()
if (baro_updated) {
orb_copy(ORB_ID(sensor_baro), _baro_sub, &_baro);
_ekf->baroHgt = _baro.altitude - _baro_ref;
_ekf->baroHgt = _baro.altitude;
// Could use a blend of GPS and baro alt data if desired
_ekf->hgtMea = 1.0f * _ekf->baroHgt + 0.0f * _ekf->gpsHgt;
if (!_baro_init) {
_baro_ref = _baro.altitude;
_baro_init = true;
warnx("ALT REF INIT");
}
newHgtData = true;
} else {
newHgtData = false;
}
#ifndef SENSOR_COMBINED_SUB
@@ -684,6 +882,8 @@ FixedwingEstimator::task_main()
if (mag_updated) {
_mag_valid = true;
perf_count(_perf_mag);
#ifndef SENSOR_COMBINED_SUB
@@ -727,6 +927,8 @@ FixedwingEstimator::task_main()
*/
int check = _ekf->CheckAndBound();
const char* ekfname = "[ekf] ";
switch (check) {
case 0:
/* all ok */
@@ -735,26 +937,38 @@ FixedwingEstimator::task_main()
{
const char* str = "NaN in states, resetting";
warnx("%s", str);
mavlink_log_critical(_mavlink_fd, str);
mavlink_log_critical(_mavlink_fd, "%s%s", ekfname, str);
break;
}
case 2:
{
const char* str = "stale IMU data, resetting";
warnx("%s", str);
mavlink_log_critical(_mavlink_fd, str);
mavlink_log_critical(_mavlink_fd, "%s%s", ekfname, str);
break;
}
case 3:
{
const char* str = "switching dynamic / static state";
const char* str = "switching to dynamic state";
warnx("%s", str);
mavlink_log_critical(_mavlink_fd, str);
mavlink_log_info(_mavlink_fd, "%s%s", ekfname, str);
break;
}
default:
{
const char* str = "unknown reset condition";
warnx("%s", str);
mavlink_log_critical(_mavlink_fd, "%s%s", ekfname, str);
}
}
// If non-zero, we got a problem
// warn on fatal resets
if (check == 1) {
warnx("NUMERIC ERROR IN FILTER");
}
// If non-zero, we got a filter reset
if (check) {
struct ekf_status_report ekf_report;
@@ -770,7 +984,7 @@ FixedwingEstimator::task_main()
rep.kalman_gain_nan = ekf_report.kalmanGainsNaN;
// Copy all states or at least all that we can fit
int i = 0;
unsigned i = 0;
unsigned ekf_n_states = (sizeof(ekf_report.states) / sizeof(ekf_report.states[0]));
unsigned max_states = (sizeof(rep.states) / sizeof(rep.states[0]));
rep.n_states = (ekf_n_states < max_states) ? ekf_n_states : max_states;
@@ -786,6 +1000,23 @@ FixedwingEstimator::task_main()
} else {
_estimator_status_pub = orb_advertise(ORB_ID(estimator_status), &rep);
}
/* set sensors to de-initialized state */
_gyro_valid = false;
_accel_valid = false;
_mag_valid = false;
_baro_init = false;
_gps_initialized = false;
last_sensor_timestamp = hrt_absolute_time();
last_run = last_sensor_timestamp;
_ekf->ZeroVariables();
_ekf->dtIMU = 0.01f;
// Let the system re-initialize itself
continue;
}
@@ -793,52 +1024,70 @@ FixedwingEstimator::task_main()
* PART TWO: EXECUTE THE FILTER
**/
// Wait long enough to ensure all sensors updated once
// XXX we rather want to check all updated
if ((hrt_elapsed_time(&_filter_start_time) > FILTER_INIT_DELAY) && _baro_init && _gyro_valid && _accel_valid && _mag_valid) {
float initVelNED[3];
if (hrt_elapsed_time(&start_time) > 100000) {
if (!_gps_initialized && _gps.fix_type > 2 && _gps.eph_m < _parameters.pos_stddev_threshold && _gps.epv_m < _parameters.pos_stddev_threshold) {
if (!_gps_initialized && (_ekf->GPSstatus == 3)) {
_ekf->velNED[0] = _gps.vel_n_m_s;
_ekf->velNED[1] = _gps.vel_e_m_s;
_ekf->velNED[2] = _gps.vel_d_m_s;
initVelNED[0] = _gps.vel_n_m_s;
initVelNED[1] = _gps.vel_e_m_s;
initVelNED[2] = _gps.vel_d_m_s;
double lat = _gps.lat * 1e-7;
double lon = _gps.lon * 1e-7;
float alt = _gps.alt * 1e-3;
// GPS is in scaled integers, convert
double lat = _gps.lat / 1.0e7;
double lon = _gps.lon / 1.0e7;
float gps_alt = _gps.alt / 1e3f;
_ekf->InitialiseFilter(_ekf->velNED);
// Set up height correctly
orb_copy(ORB_ID(sensor_baro), _baro_sub, &_baro);
_baro_gps_offset = _baro_ref - _baro.altitude;
_ekf->baroHgt = _baro.altitude;
_ekf->hgtMea = 1.0f * (_ekf->baroHgt - (_baro_ref));
// Set up position variables correctly
_ekf->GPSstatus = _gps.fix_type;
_ekf->gpsLat = math::radians(lat);
_ekf->gpsLon = math::radians(lon) - M_PI;
_ekf->gpsHgt = gps_alt;
// Look up mag declination based on current position
float declination = math::radians(get_mag_declination(lat, lon));
_ekf->InitialiseFilter(initVelNED, math::radians(lat), math::radians(lon) - M_PI, gps_alt, declination);
// Initialize projection
_local_pos.ref_lat = _gps.lat;
_local_pos.ref_lon = _gps.lon;
_local_pos.ref_alt = alt;
_local_pos.ref_lat = lat;
_local_pos.ref_lon = lon;
_local_pos.ref_alt = gps_alt;
_local_pos.ref_timestamp = _gps.timestamp_position;
// Store
orb_copy(ORB_ID(sensor_baro), _baro_sub, &_baro);
_baro_ref = _baro.altitude;
_ekf->baroHgt = _baro.altitude - _baro_ref;
_baro_gps_offset = _baro_ref - _local_pos.ref_alt;
// XXX this is not multithreading safe
map_projection_init(&_pos_ref, lat, lon);
mavlink_log_info(_mavlink_fd, "[position estimator] init ref: lat=%.7f, lon=%.7f, alt=%.2f", lat, lon, alt);
mavlink_log_info(_mavlink_fd, "[ekf] ref: LA %.4f,LO %.4f,ALT %.2f", lat, lon, (double)gps_alt);
warnx("HOME/REF: LA %8.4f,LO %8.4f,ALT %8.2f V: %8.4f %8.4f %8.4f", lat, lon, (double)gps_alt,
(double)_ekf->velNED[0], (double)_ekf->velNED[1], (double)_ekf->velNED[2]);
warnx("BARO: %8.4f m / ref: %8.4f m / gps offs: %8.4f m", (double)_ekf->baroHgt, (double)_baro_ref, (double)_baro_gps_offset);
warnx("GPS: eph: %8.4f, epv: %8.4f, declination: %8.4f", (double)_gps.eph_m, (double)_gps.epv_m, (double)math::degrees(declination));
_gps_initialized = true;
} else if (!_ekf->statesInitialised) {
_ekf->velNED[0] = 0.0f;
_ekf->velNED[1] = 0.0f;
_ekf->velNED[2] = 0.0f;
initVelNED[0] = 0.0f;
initVelNED[1] = 0.0f;
initVelNED[2] = 0.0f;
_ekf->posNED[0] = 0.0f;
_ekf->posNED[1] = 0.0f;
_ekf->posNED[2] = 0.0f;
_ekf->posNE[0] = _ekf->posNED[0];
_ekf->posNE[1] = _ekf->posNED[1];
_ekf->InitialiseFilter(_ekf->velNED);
_local_pos.ref_alt = _baro_ref;
_baro_gps_offset = 0.0f;
_ekf->InitialiseFilter(initVelNED, 0.0, 0.0, 0.0f, 0.0f);
}
}
@@ -872,10 +1121,10 @@ FixedwingEstimator::task_main()
// perform a covariance prediction if the total delta angle has exceeded the limit
// or the time limit will be exceeded at the next IMU update
if ((dt >= (covTimeStepMax - _ekf->dtIMU)) || (_ekf->summedDelAng.length() > covDelAngMax)) {
if ((dt >= (_ekf->covTimeStepMax - _ekf->dtIMU)) || (_ekf->summedDelAng.length() > _ekf->covDelAngMax)) {
_ekf->CovariancePrediction(dt);
_ekf->summedDelAng = _ekf->summedDelAng.zero();
_ekf->summedDelVel = _ekf->summedDelVel.zero();
_ekf->summedDelAng.zero();
_ekf->summedDelVel.zero();
dt = 0.0f;
}
@@ -926,9 +1175,9 @@ FixedwingEstimator::task_main()
_ekf->fusePosData = false;
}
if (newAdsData && _ekf->statesInitialised) {
if (newHgtData && _ekf->statesInitialised) {
// Could use a blend of GPS and baro alt data if desired
_ekf->hgtMea = 1.0f * _ekf->baroHgt + 0.0f * _ekf->gpsHgt;
_ekf->hgtMea = 1.0f * (_ekf->baroHgt - _baro_ref);
_ekf->fuseHgtData = true;
// recall states stored at time of measurement after adjusting for delays
_ekf->RecallStates(_ekf->statesAtHgtTime, (IMUmsec - _parameters.height_delay_ms));
@@ -1017,7 +1266,8 @@ FixedwingEstimator::task_main()
_local_pos.timestamp = last_sensor_timestamp;
_local_pos.x = _ekf->states[7];
_local_pos.y = _ekf->states[8];
_local_pos.z = _ekf->states[9];
// XXX need to announce change of Z reference somehow elegantly
_local_pos.z = _ekf->states[9] - _baro_gps_offset;
_local_pos.vx = _ekf->states[4];
_local_pos.vy = _ekf->states[5];
@@ -1050,6 +1300,8 @@ FixedwingEstimator::task_main()
_global_pos.lat = est_lat;
_global_pos.lon = est_lon;
_global_pos.time_gps_usec = _gps.time_gps_usec;
_global_pos.eph = _gps.eph_m;
_global_pos.epv = _gps.epv_m;
}
if (_local_pos.v_xy_valid) {
@@ -1060,8 +1312,8 @@ FixedwingEstimator::task_main()
_global_pos.vel_e = 0.0f;
}
/* local pos alt is negative, change sign and add alt offset */
_global_pos.alt = _local_pos.ref_alt + (-_local_pos.z);
/* local pos alt is negative, change sign and add alt offsets */
_global_pos.alt = _local_pos.ref_alt + _baro_gps_offset + (-_local_pos.z);
if (_local_pos.v_z_valid) {
_global_pos.vel_d = _local_pos.vz;
@@ -1102,7 +1354,7 @@ FixedwingEstimator::start()
ASSERT(_estimator_task == -1);
/* start the task */
_estimator_task = task_spawn_cmd("fw_att_pos_estimator",
_estimator_task = task_spawn_cmd("ekf_att_pos_estimator",
SCHED_DEFAULT,
SCHED_PRIORITY_MAX - 40,
6000,
@@ -1136,7 +1388,8 @@ FixedwingEstimator::print_status()
// 15-17: Earth Magnetic Field Vector - gauss (North, East, Down)
// 18-20: Body Magnetic Field Vector - gauss (X,Y,Z)
printf("dtIMU: %8.6f dt: %8.6f IMUmsec: %d\n", _ekf->dtIMU, dt, (int)IMUmsec);
printf("dtIMU: %8.6f IMUmsec: %d\n", (double)_ekf->dtIMU, (int)IMUmsec);
printf("ref alt: %8.6f\n", (double)_local_pos.ref_alt);
printf("dvel: %8.6f %8.6f %8.6f accel: %8.6f %8.6f %8.6f\n", (double)_ekf->dVelIMU.x, (double)_ekf->dVelIMU.y, (double)_ekf->dVelIMU.z, (double)_ekf->accel.x, (double)_ekf->accel.y, (double)_ekf->accel.z);
printf("dang: %8.4f %8.4f %8.4f dang corr: %8.4f %8.4f %8.4f\n" , (double)_ekf->dAngIMU.x, (double)_ekf->dAngIMU.y, (double)_ekf->dAngIMU.z, (double)_ekf->correctedDelAng.x, (double)_ekf->correctedDelAng.y, (double)_ekf->correctedDelAng.z);
printf("states (quat) [1-4]: %8.4f, %8.4f, %8.4f, %8.4f\n", (double)_ekf->states[0], (double)_ekf->states[1], (double)_ekf->states[2], (double)_ekf->states[3]);
@@ -1180,13 +1433,13 @@ int FixedwingEstimator::trip_nan() {
_ekf->states[5] = nan_val;
usleep(100000);
// warnx("tripping covariance #1 with NaN values");
// KH[2][2] = nan_val; // intermediate result used for covariance updates
// usleep(100000);
warnx("tripping covariance #1 with NaN values");
_ekf->KH[2][2] = nan_val; // intermediate result used for covariance updates
usleep(100000);
// warnx("tripping covariance #2 with NaN values");
// KHP[5][5] = nan_val; // intermediate result used for covariance updates
// usleep(100000);
warnx("tripping covariance #2 with NaN values");
_ekf->KHP[5][5] = nan_val; // intermediate result used for covariance updates
usleep(100000);
warnx("tripping covariance #3 with NaN values");
_ekf->P[3][3] = nan_val; // covariance matrix
@@ -1208,10 +1461,10 @@ int FixedwingEstimator::trip_nan() {
return ret;
}
int fw_att_pos_estimator_main(int argc, char *argv[])
int ekf_att_pos_estimator_main(int argc, char *argv[])
{
if (argc < 1)
errx(1, "usage: fw_att_pos_estimator {start|stop|status}");
errx(1, "usage: ekf_att_pos_estimator {start|stop|status}");
if (!strcmp(argv[1], "start")) {
src/modules/ekf_att_pos_estimator/ekf_att_pos_estimator_params.c
+271
View File
@@ -0,0 +1,271 @@
/****************************************************************************
*
* Copyright (c) 2013, 2014 PX4 Development Team. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
* 3. Neither the name PX4 nor the names of its contributors may be
* used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*
****************************************************************************/
/**
* @file ekf_att_pos_estimator_params.c
*
* Parameters defined by the attitude and position estimator task
*
* @author Lorenz Meier <lm@inf.ethz.ch>
*/
#include <nuttx/config.h>
#include <systemlib/param/param.h>
/*
* Estimator parameters, accessible via MAVLink
*
*/
/**
* Velocity estimate delay
*
* The delay in milliseconds of the velocity estimate from GPS.
*
* @min 0
* @max 1000
* @group Position Estimator
*/
PARAM_DEFINE_INT32(PE_VEL_DELAY_MS, 230);
/**
* Position estimate delay
*
* The delay in milliseconds of the position estimate from GPS.
*
* @min 0
* @max 1000
* @group Position Estimator
*/
PARAM_DEFINE_INT32(PE_POS_DELAY_MS, 210);
/**
* Height estimate delay
*
* The delay in milliseconds of the height estimate from the barometer.
*
* @min 0
* @max 1000
* @group Position Estimator
*/
PARAM_DEFINE_INT32(PE_HGT_DELAY_MS, 350);
/**
* Mag estimate delay
*
* The delay in milliseconds of the magnetic field estimate from
* the magnetometer.
*
* @min 0
* @max 1000
* @group Position Estimator
*/
PARAM_DEFINE_INT32(PE_MAG_DELAY_MS, 30);
/**
* True airspeeed estimate delay
*
* The delay in milliseconds of the airspeed estimate.
*
* @min 0
* @max 1000
* @group Position Estimator
*/
PARAM_DEFINE_INT32(PE_TAS_DELAY_MS, 210);
/**
* GPS vs. barometric altitude update weight
*
* RE-CHECK this.
*
* @min 0.0
* @max 1.0
* @group Position Estimator
*/
PARAM_DEFINE_FLOAT(PE_GPS_ALT_WGT, 0.9f);
/**
* Airspeed measurement noise.
*
* Increasing this value will make the filter trust this sensor
* less and trust other sensors more.
*
* @min 0.5
* @max 5.0
* @group Position Estimator
*/
PARAM_DEFINE_FLOAT(PE_EAS_NOISE, 1.4f);
/**
* Velocity measurement noise in north-east (horizontal) direction.
*
* Generic default: 0.3, multicopters: 0.5, ground vehicles: 0.5
*
* @min 0.05
* @max 5.0
* @group Position Estimator
*/
PARAM_DEFINE_FLOAT(PE_VELNE_NOISE, 0.3f);
/**
* Velocity noise in down (vertical) direction
*
* Generic default: 0.5, multicopters: 0.7, ground vehicles: 0.7
*
* @min 0.05
* @max 5.0
* @group Position Estimator
*/
PARAM_DEFINE_FLOAT(PE_VELD_NOISE, 0.5f);
/**
* Position noise in north-east (horizontal) direction
*
* Generic defaults: 0.5, multicopters: 0.5, ground vehicles: 0.5
*
* @min 0.1
* @max 10.0
* @group Position Estimator
*/
PARAM_DEFINE_FLOAT(PE_POSNE_NOISE, 0.5f);
/**
* Position noise in down (vertical) direction
*
* Generic defaults: 0.5, multicopters: 1.0, ground vehicles: 1.0
*
* @min 0.1
* @max 10.0
* @group Position Estimator
*/
PARAM_DEFINE_FLOAT(PE_POSD_NOISE, 0.5f);
/**
* Magnetometer measurement noise
*
* Generic defaults: 0.05, multicopters: 0.05, ground vehicles: 0.05
*
* @min 0.1
* @max 10.0
* @group Position Estimator
*/
PARAM_DEFINE_FLOAT(PE_MAG_NOISE, 0.05f);
/**
* Gyro process noise
*
* Generic defaults: 0.015, multicopters: 0.015, ground vehicles: 0.015.
* This noise controls how much the filter trusts the gyro measurements.
* Increasing it makes the filter trust the gyro less and other sensors more.
*
* @min 0.001
* @max 0.05
* @group Position Estimator
*/
PARAM_DEFINE_FLOAT(PE_GYRO_PNOISE, 0.015f);
/**
* Accelerometer process noise
*
* Generic defaults: 0.25, multicopters: 0.25, ground vehicles: 0.25.
* Increasing this value makes the filter trust the accelerometer less
* and other sensors more.
*
* @min 0.05
* @max 1.0
* @group Position Estimator
*/
PARAM_DEFINE_FLOAT(PE_ACC_PNOISE, 0.25f);
/**
* Gyro bias estimate process noise
*
* Generic defaults: 1e-07f, multicopters: 1e-07f, ground vehicles: 1e-07f.
* Increasing this value will make the gyro bias converge faster but noisier.
*
* @min 0.0000001
* @max 0.00001
* @group Position Estimator
*/
PARAM_DEFINE_FLOAT(PE_GBIAS_PNOISE, 1e-07f);
/**
* Accelerometer bias estimate process noise
*
* Generic defaults: 0.0001f, multicopters: 0.0001f, ground vehicles: 0.0001f.
* Increasing this value makes the bias estimation faster and noisier.
*
* @min 0.00001
* @max 0.001
* @group Position Estimator
*/
PARAM_DEFINE_FLOAT(PE_ABIAS_PNOISE, 0.00005f);
/**
* Magnetometer earth frame offsets process noise
*
* Generic defaults: 0.0001, multicopters: 0.0001, ground vehicles: 0.0001.
* Increasing this value makes the magnetometer earth bias estimate converge
* faster but also noisier.
*
* @min 0.0001
* @max 0.01
* @group Position Estimator
*/
PARAM_DEFINE_FLOAT(PE_MAGE_PNOISE, 0.0003f);
/**
* Magnetometer body frame offsets process noise
*
* Generic defaults: 0.0003, multicopters: 0.0003, ground vehicles: 0.0003.
* Increasing this value makes the magnetometer body bias estimate converge faster
* but also noisier.
*
* @min 0.0001
* @max 0.01
* @group Position Estimator
*/
PARAM_DEFINE_FLOAT(PE_MAGB_PNOISE, 0.0003f);
/**
* Threshold for filter initialization.
*
* If the standard deviation of the GPS position estimate is below this threshold
* in meters, the filter will initialize.
*
* @min 0.3
* @max 10.0
* @group Position Estimator
*/
PARAM_DEFINE_FLOAT(PE_POSDEV_INIT, 5.0f);
src/modules/ekf_att_pos_estimator/estimator.cpp
+2609
View File
File diff suppressed because it is too large Load Diff
src/modules/fw_att_pos_estimator/estimator.h → src/modules/ekf_att_pos_estimator/estimator.h
+111 -18
View File
@@ -20,7 +20,7 @@ public:
float z;
float length(void) const;
Vector3f zero(void) const;
void zero(void);
};
class Mat3f
@@ -33,6 +33,7 @@ public:
Mat3f();
void identity();
Mat3f transpose(void) const;
};
@@ -45,14 +46,9 @@ Vector3f operator*(Vector3f vecIn1, float sclIn1);
void swap_var(float &d1, float &d2);
const unsigned int n_states = 21;
const unsigned int n_states = 23;
const unsigned int data_buffer_size = 50;
const float covTimeStepMax = 0.07f; // maximum time allowed between covariance predictions
const float covDelAngMax = 0.02f; // maximum delta angle between covariance predictions
// extern bool staticMode;
enum GPS_FIX {
GPS_FIX_NOFIX = 0,
GPS_FIX_2D = 2,
@@ -82,6 +78,88 @@ public:
AttPosEKF();
~AttPosEKF();
/* ##############################################
*
* M A I N F I L T E R P A R A M E T E R S
*
* ########################################### */
/*
* parameters are defined here and initialised in
* the InitialiseParameters() (which is just 20 lines down)
*/
float covTimeStepMax; // maximum time allowed between covariance predictions
float covDelAngMax; // maximum delta angle between covariance predictions
float rngFinderPitch; // pitch angle of laser range finder in radians. Zero is aligned with the Z body axis. Positive is RH rotation about Y body axis.
float yawVarScale;
float windVelSigma;
float dAngBiasSigma;
float dVelBiasSigma;
float magEarthSigma;
float magBodySigma;
float gndHgtSigma;
float vneSigma;
float vdSigma;
float posNeSigma;
float posDSigma;
float magMeasurementSigma;
float airspeedMeasurementSigma;
float gyroProcessNoise;
float accelProcessNoise;
float EAS2TAS; // ratio f true to equivalent airspeed
void InitialiseParameters()
{
covTimeStepMax = 0.07f; // maximum time allowed between covariance predictions
covDelAngMax = 0.02f; // maximum delta angle between covariance predictions
rngFinderPitch = 0.0f; // pitch angle of laser range finder in radians. Zero is aligned with the Z body axis. Positive is RH rotation about Y body axis.
EAS2TAS = 1.0f;
yawVarScale = 1.0f;
windVelSigma = 0.1f;
dAngBiasSigma = 5.0e-7f;
dVelBiasSigma = 1e-4f;
magEarthSigma = 3.0e-4f;
magBodySigma = 3.0e-4f;
gndHgtSigma = 0.02f; // assume 2% terrain gradient 1-sigma
vneSigma = 0.2f;
vdSigma = 0.3f;
posNeSigma = 2.0f;
posDSigma = 2.0f;
magMeasurementSigma = 0.05;
airspeedMeasurementSigma = 1.4f;
gyroProcessNoise = 1.4544411e-2f;
accelProcessNoise = 0.5f;
}
struct {
unsigned obsIndex;
float MagPred[3];
float SH_MAG[9];
float q0;
float q1;
float q2;
float q3;
float magN;
float magE;
float magD;
float magXbias;
float magYbias;
float magZbias;
float R_MAG;
Mat3f DCM;
} magstate;
// Global variables
float KH[n_states][n_states]; // intermediate result used for covariance updates
float KHP[n_states][n_states]; // intermediate result used for covariance updates
@@ -96,6 +174,7 @@ public:
float statesAtHgtTime[n_states]; // States at the effective measurement time for the hgtMea measurement
float statesAtMagMeasTime[n_states]; // filter satates at the effective measurement time
float statesAtVtasMeasTime[n_states]; // filter states at the effective measurement time
float statesAtRngTime[n_states]; // filter states at the effective measurement time
Vector3f correctedDelAng; // delta angles about the xyz body axes corrected for errors (rad)
Vector3f correctedDelVel; // delta velocities along the XYZ body axes corrected for errors (m/s)
@@ -104,6 +183,10 @@ public:
float accNavMag; // magnitude of navigation accel (- used to adjust GPS obs variance (m/s^2)
Vector3f earthRateNED; // earths angular rate vector in NED (rad/s)
Vector3f angRate; // angular rate vector in XYZ body axes measured by the IMU (rad/s)
Mat3f Tbn; // transformation matrix from body to NED coordinates
Mat3f Tnb; // transformation amtrix from NED to body coordinates
Vector3f accel; // acceleration vector in XYZ body axes measured by the IMU (m/s^2)
Vector3f dVelIMU;
Vector3f dAngIMU;
@@ -115,26 +198,30 @@ public:
float velNED[3]; // North, East, Down velocity obs (m/s)
float posNE[2]; // North, East position obs (m)
float hgtMea; // measured height (m)
float baroHgtOffset; ///< the baro (weather) offset from normalized altitude
float rngMea; // Ground distance
float posNED[3]; // North, East Down position (m)
float innovMag[3]; // innovation output
float varInnovMag[3]; // innovation variance output
Vector3f magData; // magnetometer flux radings in X,Y,Z body axes
float innovVtas; // innovation output
float innovRng; ///< Range finder innovation
float varInnovVtas; // innovation variance output
float VtasMeas; // true airspeed measurement (m/s)
float latRef; // WGS-84 latitude of reference point (rad)
float lonRef; // WGS-84 longitude of reference point (rad)
float magDeclination; ///< magnetic declination
double latRef; // WGS-84 latitude of reference point (rad)
double lonRef; // WGS-84 longitude of reference point (rad)
float hgtRef; // WGS-84 height of reference point (m)
bool refSet; ///< flag to indicate if the reference position has been set
Vector3f magBias; // states representing magnetometer bias vector in XYZ body axes
uint8_t covSkipCount; // Number of state prediction frames (IMU daya updates to skip before doing the covariance prediction
float EAS2TAS; // ratio f true to equivalent airspeed
unsigned covSkipCount; // Number of state prediction frames (IMU daya updates to skip before doing the covariance prediction
// GPS input data variables
float gpsCourse;
float gpsVelD;
float gpsLat;
float gpsLon;
double gpsLat;
double gpsLon;
float gpsHgt;
uint8_t GPSstatus;
@@ -148,11 +235,13 @@ public:
bool fuseHgtData; // this boolean causes the hgtMea obs to be fused
bool fuseMagData; // boolean true when magnetometer data is to be fused
bool fuseVtasData; // boolean true when airspeed data is to be fused
bool fuseRngData; ///< true when range data is fused
bool onGround; ///< boolean true when the flight vehicle is on the ground (not flying)
bool staticMode; ///< boolean true if no position feedback is fused
bool useAirspeed; ///< boolean true if airspeed data is being used
bool useCompass; ///< boolean true if magnetometer data is being used
bool useRangeFinder; ///< true when rangefinder is being used
struct ekf_status_report current_ekf_state;
struct ekf_status_report last_ekf_error;
@@ -172,6 +261,10 @@ void FuseMagnetometer();
void FuseAirspeed();
void FuseRangeFinder();
void FuseOpticalFlow();
void zeroRows(float (&covMat)[n_states][n_states], uint8_t first, uint8_t last);
void zeroCols(float (&covMat)[n_states][n_states], uint8_t first, uint8_t last);
@@ -192,7 +285,7 @@ void StoreStates(uint64_t timestamp_ms);
* time-wise where valid states were updated and invalid remained at the old
* value.
*/
int RecallStates(float statesForFusion[n_states], uint64_t msec);
int RecallStates(float *statesForFusion, uint64_t msec);
void ResetStoredStates();
@@ -206,7 +299,7 @@ static void quat2eul(float (&eul)[3], const float (&quat)[4]);
static void calcvelNED(float (&velNED)[3], float gpsCourse, float gpsGndSpd, float gpsVelD);
static void calcposNED(float (&posNED)[3], float lat, float lon, float hgt, float latRef, float lonRef, float hgtRef);
static void calcposNED(float (&posNED)[3], double lat, double lon, float hgt, double latRef, double lonRef, float hgtRef);
static void calcLLH(float (&posNED)[3], float lat, float lon, float hgt, float latRef, float lonRef, float hgtRef);
@@ -218,7 +311,7 @@ void OnGroundCheck();
void CovarianceInit();
void InitialiseFilter(float (&initvelNED)[3]);
void InitialiseFilter(float (&initvelNED)[3], double referenceLat, double referenceLon, float referenceHgt, float declination);
float ConstrainFloat(float val, float min, float max);
@@ -243,7 +336,7 @@ void GetLastErrorState(struct ekf_status_report *last_error);
bool StatesNaN(struct ekf_status_report *err_report);
void FillErrorReport(struct ekf_status_report *err);
void InitializeDynamic(float (&initvelNED)[3]);
void InitializeDynamic(float (&initvelNED)[3], float declination);
protected:
@@ -251,7 +344,7 @@ bool FilterHealthy();
void ResetHeight(void);
void AttitudeInit(float ax, float ay, float az, float mx, float my, float mz, float *initQuat);
void AttitudeInit(float ax, float ay, float az, float mx, float my, float mz, float declination, float *initQuat);
};
src/modules/fw_att_pos_estimator/module.mk → src/modules/ekf_att_pos_estimator/module.mk
+4 -4
View File
@@ -32,11 +32,11 @@
############################################################################
#
# Main Attitude and Position Estimator for Fixed Wing Aircraft
# Main EKF Attitude and Position Estimator
#
MODULE_COMMAND = fw_att_pos_estimator
MODULE_COMMAND = ekf_att_pos_estimator
SRCS = fw_att_pos_estimator_main.cpp \
fw_att_pos_estimator_params.c \
SRCS = ekf_att_pos_estimator_main.cpp \
ekf_att_pos_estimator_params.c \
estimator.cpp
src/modules/fixedwing_att_control/fixedwing_att_control_att.c
-169
View File
@@ -1,169 +0,0 @@
/****************************************************************************
*
* Copyright (C) 2012 PX4 Development Team. All rights reserved.
* Author: @author Thomas Gubler <thomasgubler@student.ethz.ch>
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
* 3. Neither the name PX4 nor the names of its contributors may be
* used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*
****************************************************************************/
/**
* @file fixedwing_att_control_rate.c
* Implementation of a fixed wing attitude controller.
*/
#include <nuttx/config.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <fcntl.h>
#include <errno.h>
#include <math.h>
#include <poll.h>
#include <time.h>
#include <drivers/drv_hrt.h>
#include <arch/board/board.h>
#include <uORB/uORB.h>
#include <uORB/topics/vehicle_attitude.h>
#include <uORB/topics/vehicle_attitude_setpoint.h>
#include <uORB/topics/manual_control_setpoint.h>
#include <systemlib/param/param.h>
#include <systemlib/pid/pid.h>
#include <systemlib/geo/geo.h>
#include <systemlib/systemlib.h>
#include "fixedwing_att_control_att.h"
struct fw_att_control_params {
float roll_p;
float rollrate_lim;
float pitch_p;
float pitchrate_lim;
float yawrate_lim;
float pitch_roll_compensation_p;
};
struct fw_pos_control_param_handles {
param_t roll_p;
param_t rollrate_lim;
param_t pitch_p;
param_t pitchrate_lim;
param_t yawrate_lim;
param_t pitch_roll_compensation_p;
};
/* Internal Prototypes */
static int parameters_init(struct fw_pos_control_param_handles *h);
static int parameters_update(const struct fw_pos_control_param_handles *h, struct fw_att_control_params *p);
static int parameters_init(struct fw_pos_control_param_handles *h)
{
/* PID parameters */
h->roll_p = param_find("FW_ROLL_P");
h->rollrate_lim = param_find("FW_ROLLR_LIM");
h->pitch_p = param_find("FW_PITCH_P");
h->pitchrate_lim = param_find("FW_PITCHR_LIM");
h->yawrate_lim = param_find("FW_YAWR_LIM");
h->pitch_roll_compensation_p = param_find("FW_PITCH_RCOMP");
return OK;
}
static int parameters_update(const struct fw_pos_control_param_handles *h, struct fw_att_control_params *p)
{
param_get(h->roll_p, &(p->roll_p));
param_get(h->rollrate_lim, &(p->rollrate_lim));
param_get(h->pitch_p, &(p->pitch_p));
param_get(h->pitchrate_lim, &(p->pitchrate_lim));
param_get(h->yawrate_lim, &(p->yawrate_lim));
param_get(h->pitch_roll_compensation_p, &(p->pitch_roll_compensation_p));
return OK;
}
int fixedwing_att_control_attitude(const struct vehicle_attitude_setpoint_s *att_sp,
const struct vehicle_attitude_s *att,
const float speed_body[],
struct vehicle_rates_setpoint_s *rates_sp)
{
static int counter = 0;
static bool initialized = false;
static struct fw_att_control_params p;
static struct fw_pos_control_param_handles h;
static PID_t roll_controller;
static PID_t pitch_controller;
if (!initialized) {
parameters_init(&h);
parameters_update(&h, &p);
pid_init(&roll_controller, p.roll_p, 0, 0, 0, p.rollrate_lim, PID_MODE_DERIVATIV_NONE, 0.0f); //P Controller
pid_init(&pitch_controller, p.pitch_p, 0, 0, 0, p.pitchrate_lim, PID_MODE_DERIVATIV_NONE, 0.0f); //P Controller
initialized = true;
}
/* load new parameters with lower rate */
if (counter % 100 == 0) {
/* update parameters from storage */
parameters_update(&h, &p);
pid_set_parameters(&roll_controller, p.roll_p, 0, 0, 0, p.rollrate_lim);
pid_set_parameters(&pitch_controller, p.pitch_p, 0, 0, 0, p.pitchrate_lim);
}
/* Roll (P) */
rates_sp->roll = pid_calculate(&roll_controller, att_sp->roll_body, att->roll, 0, 0);
/* Pitch (P) */
/* compensate feedforward for loss of lift due to non-horizontal angle of wing */
float pitch_sp_rollcompensation = p.pitch_roll_compensation_p * fabsf(sinf(att_sp->roll_body));
/* set pitch plus feedforward roll compensation */
rates_sp->pitch = pid_calculate(&pitch_controller,
att_sp->pitch_body + pitch_sp_rollcompensation,
att->pitch, 0, 0);
/* Yaw (from coordinated turn constraint or lateral force) */
rates_sp->yaw = (att->rollspeed * rates_sp->roll + 9.81f * sinf(att->roll) * cosf(att->pitch) + speed_body[0] * rates_sp->pitch * sinf(att->roll))
/ (speed_body[0] * cosf(att->roll) * cosf(att->pitch) + speed_body[2] * sinf(att->pitch));
// printf("rates_sp->yaw %.4f \n", (double)rates_sp->yaw);
counter++;
return 0;
}
src/modules/fixedwing_att_control/fixedwing_att_control_att.h
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@@ -1,51 +0,0 @@
/****************************************************************************
*
* Copyright (C) 2012 PX4 Development Team. All rights reserved.
* Author: @author Thomas Gubler <thomasgubler@student.ethz.ch>
*
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
* 3. Neither the name PX4 nor the names of its contributors may be
* used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*
****************************************************************************/
/* @file Fixed Wing Attitude Control */
#ifndef FIXEDWING_ATT_CONTROL_ATT_H_
#define FIXEDWING_ATT_CONTROL_ATT_H_
#include <uORB/topics/vehicle_rates_setpoint.h>
#include <uORB/topics/vehicle_attitude_setpoint.h>
#include <uORB/topics/vehicle_attitude.h>
#include <uORB/topics/vehicle_global_position.h>
int fixedwing_att_control_attitude(const struct vehicle_attitude_setpoint_s *att_sp,
const struct vehicle_attitude_s *att,
const float speed_body[],
struct vehicle_rates_setpoint_s *rates_sp);
#endif /* FIXEDWING_ATT_CONTROL_ATT_H_ */
src/modules/fixedwing_att_control/fixedwing_att_control_main.c
-367
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@@ -1,367 +0,0 @@
/****************************************************************************
*
* Copyright (C) 2012 PX4 Development Team. All rights reserved.
* Author: @author Thomas Gubler <thomasgubler@student.ethz.ch>
* @author Doug Weibel <douglas.weibel@colorado.edu>
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
* 3. Neither the name PX4 nor the names of its contributors may be
* used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*
****************************************************************************/
/**
* @file fixedwing_att_control.c
* Implementation of a fixed wing attitude controller.
*/
#include <nuttx/config.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <fcntl.h>
#include <errno.h>
#include <math.h>
#include <poll.h>
#include <time.h>
#include <drivers/drv_hrt.h>
#include <arch/board/board.h>
#include <uORB/uORB.h>
#include <uORB/topics/vehicle_global_position.h>
#include <uORB/topics/vehicle_global_position_setpoint.h>
#include <uORB/topics/vehicle_attitude.h>
#include <uORB/topics/vehicle_control_mode.h>
#include <uORB/topics/vehicle_status.h>
#include <uORB/topics/vehicle_attitude_setpoint.h>
#include <uORB/topics/manual_control_setpoint.h>
#include <uORB/topics/actuator_controls.h>
#include <uORB/topics/vehicle_rates_setpoint.h>
#include <uORB/topics/vehicle_global_position.h>
#include <uORB/topics/debug_key_value.h>
#include <systemlib/param/param.h>
#include <systemlib/pid/pid.h>
#include <systemlib/geo/geo.h>
#include <systemlib/perf_counter.h>
#include <systemlib/systemlib.h>
#include "fixedwing_att_control_rate.h"
#include "fixedwing_att_control_att.h"
/* Prototypes */
/**
* Deamon management function.
*/
__EXPORT int fixedwing_att_control_main(int argc, char *argv[]);
/**
* Mainloop of deamon.
*/
int fixedwing_att_control_thread_main(int argc, char *argv[]);
/**
* Print the correct usage.
*/
static void usage(const char *reason);
/* Variables */
static bool thread_should_exit = false; /**< Deamon exit flag */
static bool thread_running = false; /**< Deamon status flag */
static int deamon_task; /**< Handle of deamon task / thread */
/* Main Thread */
int fixedwing_att_control_thread_main(int argc, char *argv[])
{
/* read arguments */
bool verbose = false;
for (int i = 1; i < argc; i++) {
if (strcmp(argv[i], "-v") == 0 || strcmp(argv[i], "--verbose") == 0) {
verbose = true;
}
}
/* welcome user */
printf("[fixedwing att control] started\n");
/* declare and safely initialize all structs */
struct vehicle_attitude_s att;
memset(&att, 0, sizeof(att));
struct vehicle_attitude_setpoint_s att_sp;
memset(&att_sp, 0, sizeof(att_sp));
struct vehicle_rates_setpoint_s rates_sp;
memset(&rates_sp, 0, sizeof(rates_sp));
struct vehicle_global_position_s global_pos;
memset(&global_pos, 0, sizeof(global_pos));
struct manual_control_setpoint_s manual_sp;
memset(&manual_sp, 0, sizeof(manual_sp));
struct vehicle_control_mode_s control_mode;
memset(&control_mode, 0, sizeof(control_mode));
struct vehicle_status_s vstatus;
memset(&vstatus, 0, sizeof(vstatus));
/* output structs */
struct actuator_controls_s actuators;
memset(&actuators, 0, sizeof(actuators));
/* publish actuator controls */
for (unsigned i = 0; i < NUM_ACTUATOR_CONTROLS; i++) {
actuators.control[i] = 0.0f;
}
orb_advert_t actuator_pub = orb_advertise(ORB_ID_VEHICLE_ATTITUDE_CONTROLS, &actuators);
orb_advert_t rates_pub = orb_advertise(ORB_ID(vehicle_rates_setpoint), &rates_sp);
/* subscribe */
int att_sub = orb_subscribe(ORB_ID(vehicle_attitude));
int att_sp_sub = orb_subscribe(ORB_ID(vehicle_attitude_setpoint));
int global_pos_sub = orb_subscribe(ORB_ID(vehicle_global_position));
int manual_sp_sub = orb_subscribe(ORB_ID(manual_control_setpoint));
int control_mode_sub = orb_subscribe(ORB_ID(vehicle_control_mode));
int vehicle_status_sub = orb_subscribe(ORB_ID(vehicle_status));
/* Setup of loop */
float gyro[3] = {0.0f, 0.0f, 0.0f};
float speed_body[3] = {0.0f, 0.0f, 0.0f};
struct pollfd fds = { .fd = att_sub, .events = POLLIN };
while (!thread_should_exit) {
/* wait for a sensor update, check for exit condition every 500 ms */
poll(&fds, 1, 500);
/* Check if there is a new position measurement or attitude setpoint */
bool pos_updated;
orb_check(global_pos_sub, &pos_updated);
bool att_sp_updated;
orb_check(att_sp_sub, &att_sp_updated);
/* get a local copy of attitude */
orb_copy(ORB_ID(vehicle_attitude), att_sub, &att);
if (att_sp_updated)
orb_copy(ORB_ID(vehicle_attitude_setpoint), att_sp_sub, &att_sp);
if (pos_updated) {
orb_copy(ORB_ID(vehicle_global_position), global_pos_sub, &global_pos);
if (att.R_valid) {
speed_body[0] = att.R[0][0] * global_pos.vx + att.R[0][1] * global_pos.vy + att.R[0][2] * global_pos.vz;
speed_body[1] = att.R[1][0] * global_pos.vx + att.R[1][1] * global_pos.vy + att.R[1][2] * global_pos.vz;
speed_body[2] = att.R[2][0] * global_pos.vx + att.R[2][1] * global_pos.vy + att.R[2][2] * global_pos.vz;
} else {
speed_body[0] = 0;
speed_body[1] = 0;
speed_body[2] = 0;
printf("FW ATT CONTROL: Did not get a valid R\n");
}
}
orb_copy(ORB_ID(manual_control_setpoint), manual_sp_sub, &manual_sp);
orb_copy(ORB_ID(vehicle_control_mode), control_mode_sub, &control_mode);
orb_copy(ORB_ID(vehicle_status), vehicle_status_sub, &vstatus);
gyro[0] = att.rollspeed;
gyro[1] = att.pitchspeed;
gyro[2] = att.yawspeed;
/* set manual setpoints if required */
if (control_mode.flag_control_manual_enabled) {
if (control_mode.flag_control_attitude_enabled) {
/* if the RC signal is lost, try to stay level and go slowly back down to ground */
if (vstatus.rc_signal_lost) {
/* put plane into loiter */
att_sp.roll_body = 0.3f;
att_sp.pitch_body = 0.0f;
/* limit throttle to 60 % of last value if sane */
if (isfinite(manual_sp.throttle) &&
(manual_sp.throttle >= 0.0f) &&
(manual_sp.throttle <= 1.0f)) {
att_sp.thrust = 0.6f * manual_sp.throttle;
} else {
att_sp.thrust = 0.0f;
}
att_sp.yaw_body = 0;
// XXX disable yaw control, loiter
} else {
att_sp.roll_body = manual_sp.roll;
att_sp.pitch_body = manual_sp.pitch;
att_sp.yaw_body = 0;
att_sp.thrust = manual_sp.throttle;
}
att_sp.timestamp = hrt_absolute_time();
/* pass through flaps */
if (isfinite(manual_sp.flaps)) {
actuators.control[4] = manual_sp.flaps;
} else {
actuators.control[4] = 0.0f;
}
} else {
/* directly pass through values */
actuators.control[0] = manual_sp.roll;
/* positive pitch means negative actuator -> pull up */
actuators.control[1] = manual_sp.pitch;
actuators.control[2] = manual_sp.yaw;
actuators.control[3] = manual_sp.throttle;
if (isfinite(manual_sp.flaps)) {
actuators.control[4] = manual_sp.flaps;
} else {
actuators.control[4] = 0.0f;
}
}
}
/* execute attitude control if requested */
if (control_mode.flag_control_attitude_enabled) {
/* attitude control */
fixedwing_att_control_attitude(&att_sp, &att, speed_body, &rates_sp);
/* angular rate control */
fixedwing_att_control_rates(&rates_sp, gyro, &actuators);
/* pass through throttle */
actuators.control[3] = att_sp.thrust;
/* set flaps to zero */
actuators.control[4] = 0.0f;
}
/* publish rates */
orb_publish(ORB_ID(vehicle_rates_setpoint), rates_pub, &rates_sp);
/* sanity check and publish actuator outputs */
if (isfinite(actuators.control[0]) &&
isfinite(actuators.control[1]) &&
isfinite(actuators.control[2]) &&
isfinite(actuators.control[3])) {
orb_publish(ORB_ID_VEHICLE_ATTITUDE_CONTROLS, actuator_pub, &actuators);
}
}
printf("[fixedwing_att_control] exiting, stopping all motors.\n");
thread_running = false;
/* kill all outputs */
for (unsigned i = 0; i < NUM_ACTUATOR_CONTROLS; i++)
actuators.control[i] = 0.0f;
orb_publish(ORB_ID_VEHICLE_ATTITUDE_CONTROLS, actuator_pub, &actuators);
close(att_sub);
close(actuator_pub);
close(rates_pub);
fflush(stdout);
exit(0);
return 0;
}
/* Startup Functions */
static void
usage(const char *reason)
{
if (reason)
fprintf(stderr, "%s\n", reason);
fprintf(stderr, "usage: fixedwing_att_control {start|stop|status}\n\n");
exit(1);
}
/**
* The deamon app only briefly exists to start
* the background job. The stack size assigned in the
* Makefile does only apply to this management task.
*
* The actual stack size should be set in the call
* to task_create().
*/
int fixedwing_att_control_main(int argc, char *argv[])
{
if (argc < 1)
usage("missing command");
if (!strcmp(argv[1], "start")) {
if (thread_running) {
printf("fixedwing_att_control already running\n");
/* this is not an error */
exit(0);
}
thread_should_exit = false;
deamon_task = task_spawn_cmd("fixedwing_att_control",
SCHED_DEFAULT,
SCHED_PRIORITY_MAX - 20,
2048,
fixedwing_att_control_thread_main,
(argv) ? (const char **)&argv[2] : (const char **)NULL);
thread_running = true;
exit(0);
}
if (!strcmp(argv[1], "stop")) {
thread_should_exit = true;
exit(0);
}
if (!strcmp(argv[1], "status")) {
if (thread_running) {
printf("\tfixedwing_att_control is running\n");
} else {
printf("\tfixedwing_att_control not started\n");
}
exit(0);
}
usage("unrecognized command");
exit(1);
}
src/modules/fixedwing_att_control/fixedwing_att_control_rate.c
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@@ -1,211 +0,0 @@
/****************************************************************************
*
* Copyright (C) 2012 PX4 Development Team. All rights reserved.
* Author: Thomas Gubler <thomasgubler@student.ethz.ch>
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
* 3. Neither the name PX4 nor the names of its contributors may be
* used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*
****************************************************************************/
/**
* @file fixedwing_att_control_rate.c
* @author Thomas Gubler <thomasgubler@student.ethz.ch>
*
* Implementation of a fixed wing attitude controller.
*
*/
#include <nuttx/config.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <fcntl.h>
#include <errno.h>
#include <math.h>
#include <poll.h>
#include <time.h>
#include <drivers/drv_hrt.h>
#include <arch/board/board.h>
#include <uORB/uORB.h>
#include <uORB/topics/vehicle_attitude.h>
#include <uORB/topics/vehicle_attitude_setpoint.h>
#include <uORB/topics/manual_control_setpoint.h>
#include <systemlib/param/param.h>
#include <systemlib/pid/pid.h>
#include <systemlib/geo/geo.h>
#include <systemlib/systemlib.h>
#include "fixedwing_att_control_rate.h"
/*
* Controller parameters, accessible via MAVLink
*
*/
// Roll control parameters
PARAM_DEFINE_FLOAT(FW_ROLLR_P, 0.9f);
PARAM_DEFINE_FLOAT(FW_ROLLR_I, 0.2f);
PARAM_DEFINE_FLOAT(FW_ROLLR_AWU, 0.9f);
PARAM_DEFINE_FLOAT(FW_ROLLR_LIM, 0.7f); // Roll rate limit in radians/sec, applies to the roll controller
PARAM_DEFINE_FLOAT(FW_ROLL_P, 4.0f);
PARAM_DEFINE_FLOAT(FW_PITCH_RCOMP, 0.1f);
//Pitch control parameters
PARAM_DEFINE_FLOAT(FW_PITCHR_P, 0.8f);
PARAM_DEFINE_FLOAT(FW_PITCHR_I, 0.2f);
PARAM_DEFINE_FLOAT(FW_PITCHR_AWU, 0.8f);
PARAM_DEFINE_FLOAT(FW_PITCHR_LIM, 0.35f); // Pitch rate limit in radians/sec, applies to the pitch controller
PARAM_DEFINE_FLOAT(FW_PITCH_P, 8.0f);
//Yaw control parameters //XXX TODO this is copy paste, asign correct values
PARAM_DEFINE_FLOAT(FW_YAWR_P, 0.3f);
PARAM_DEFINE_FLOAT(FW_YAWR_I, 0.0f);
PARAM_DEFINE_FLOAT(FW_YAWR_AWU, 0.0f);
PARAM_DEFINE_FLOAT(FW_YAWR_LIM, 0.35f); // Yaw rate limit in radians/sec
/* feedforward compensation */
PARAM_DEFINE_FLOAT(FW_PITCH_THR_P, 0.1f); /**< throttle to pitch coupling feedforward */
struct fw_rate_control_params {
float rollrate_p;
float rollrate_i;
float rollrate_awu;
float pitchrate_p;
float pitchrate_i;
float pitchrate_awu;
float yawrate_p;
float yawrate_i;
float yawrate_awu;
float pitch_thr_ff;
};
struct fw_rate_control_param_handles {
param_t rollrate_p;
param_t rollrate_i;
param_t rollrate_awu;
param_t pitchrate_p;
param_t pitchrate_i;
param_t pitchrate_awu;
param_t yawrate_p;
param_t yawrate_i;
param_t yawrate_awu;
param_t pitch_thr_ff;
};
/* Internal Prototypes */
static int parameters_init(struct fw_rate_control_param_handles *h);
static int parameters_update(const struct fw_rate_control_param_handles *h, struct fw_rate_control_params *p);
static int parameters_init(struct fw_rate_control_param_handles *h)
{
/* PID parameters */
h->rollrate_p = param_find("FW_ROLLR_P"); //TODO define rate params for fixed wing
h->rollrate_i = param_find("FW_ROLLR_I");
h->rollrate_awu = param_find("FW_ROLLR_AWU");
h->pitchrate_p = param_find("FW_PITCHR_P");
h->pitchrate_i = param_find("FW_PITCHR_I");
h->pitchrate_awu = param_find("FW_PITCHR_AWU");
h->yawrate_p = param_find("FW_YAWR_P");
h->yawrate_i = param_find("FW_YAWR_I");
h->yawrate_awu = param_find("FW_YAWR_AWU");
h->pitch_thr_ff = param_find("FW_PITCH_THR_P");
return OK;
}
static int parameters_update(const struct fw_rate_control_param_handles *h, struct fw_rate_control_params *p)
{
param_get(h->rollrate_p, &(p->rollrate_p));
param_get(h->rollrate_i, &(p->rollrate_i));
param_get(h->rollrate_awu, &(p->rollrate_awu));
param_get(h->pitchrate_p, &(p->pitchrate_p));
param_get(h->pitchrate_i, &(p->pitchrate_i));
param_get(h->pitchrate_awu, &(p->pitchrate_awu));
param_get(h->yawrate_p, &(p->yawrate_p));
param_get(h->yawrate_i, &(p->yawrate_i));
param_get(h->yawrate_awu, &(p->yawrate_awu));
param_get(h->pitch_thr_ff, &(p->pitch_thr_ff));
return OK;
}
int fixedwing_att_control_rates(const struct vehicle_rates_setpoint_s *rate_sp,
const float rates[],
struct actuator_controls_s *actuators)
{
static int counter = 0;
static bool initialized = false;
static struct fw_rate_control_params p;
static struct fw_rate_control_param_handles h;
static PID_t roll_rate_controller;
static PID_t pitch_rate_controller;
static PID_t yaw_rate_controller;
static uint64_t last_run = 0;
const float deltaT = (hrt_absolute_time() - last_run) / 1000000.0f;
last_run = hrt_absolute_time();
if (!initialized) {
parameters_init(&h);
parameters_update(&h, &p);
pid_init(&roll_rate_controller, p.rollrate_p, p.rollrate_i, 0, p.rollrate_awu, 1, PID_MODE_DERIVATIV_NONE, 0.0f); // set D part to 0 because the controller layout is with a PI rate controller
pid_init(&pitch_rate_controller, p.pitchrate_p, p.pitchrate_i, 0, p.pitchrate_awu, 1, PID_MODE_DERIVATIV_NONE, 0.0f); // set D part to 0 because the contpitcher layout is with a PI rate contpitcher
pid_init(&yaw_rate_controller, p.yawrate_p, p.yawrate_i, 0, p.yawrate_awu, 1, PID_MODE_DERIVATIV_NONE, 0.0f); // set D part to 0 because the contpitcher layout is with a PI rate contpitcher
initialized = true;
}
/* load new parameters with lower rate */
if (counter % 100 == 0) {
/* update parameters from storage */
parameters_update(&h, &p);
pid_set_parameters(&roll_rate_controller, p.rollrate_p, p.rollrate_i, 0, p.rollrate_awu, 1);
pid_set_parameters(&pitch_rate_controller, p.pitchrate_p, p.pitchrate_i, 0, p.pitchrate_awu, 1);
pid_set_parameters(&yaw_rate_controller, p.yawrate_p, p.yawrate_i, 0, p.yawrate_awu, 1);
}
/* roll rate (PI) */
actuators->control[0] = pid_calculate(&roll_rate_controller, rate_sp->roll, rates[0], 0.0f, deltaT);
/* pitch rate (PI) */
actuators->control[1] = -pid_calculate(&pitch_rate_controller, rate_sp->pitch, rates[1], 0.0f, deltaT);
/* yaw rate (PI) */
actuators->control[2] = pid_calculate(&yaw_rate_controller, rate_sp->yaw, rates[2], 0.0f, deltaT);
counter++;
return 0;
}
src/modules/fixedwing_att_control/fixedwing_att_control_rate.h
-48
View File
@@ -1,48 +0,0 @@
/****************************************************************************
*
* Copyright (C) 2012 PX4 Development Team. All rights reserved.
* Author: @author Thomas Gubler <thomasgubler@student.ethz.ch>
*
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
* 3. Neither the name PX4 nor the names of its contributors may be
* used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*
****************************************************************************/
/* @file Fixed Wing Attitude Rate Control */
#ifndef FIXEDWING_ATT_CONTROL_RATE_H_
#define FIXEDWING_ATT_CONTROL_RATE_H_
#include <uORB/topics/vehicle_rates_setpoint.h>
#include <uORB/topics/actuator_controls.h>
int fixedwing_att_control_rates(const struct vehicle_rates_setpoint_s *rate_sp,
const float rates[],
struct actuator_controls_s *actuators);
#endif /* FIXEDWING_ATT_CONTROL_RATE_H_ */
src/modules/fixedwing_att_control/module.mk
-42
View File
@@ -1,42 +0,0 @@
############################################################################
#
# Copyright (c) 2012, 2013 PX4 Development Team. All rights reserved.
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions
# are met:
#
# 1. Redistributions of source code must retain the above copyright
# notice, this list of conditions and the following disclaimer.
# 2. Redistributions in binary form must reproduce the above copyright
# notice, this list of conditions and the following disclaimer in
# the documentation and/or other materials provided with the
# distribution.
# 3. Neither the name PX4 nor the names of its contributors may be
# used to endorse or promote products derived from this software
# without specific prior written permission.
#
# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
# FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
# COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
# INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
# BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
# OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
# AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
# ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
# POSSIBILITY OF SUCH DAMAGE.
#
############################################################################
#
# Fixedwing Attitude Control application
#
MODULE_COMMAND = fixedwing_att_control
SRCS = fixedwing_att_control_main.c \
fixedwing_att_control_att.c \
fixedwing_att_control_rate.c
src/modules/fixedwing_backside/fixedwing.cpp
+2 -2
View File
@@ -229,8 +229,8 @@ void BlockMultiModeBacksideAutopilot::update()
_actuators.control[CH_RDR] = _manual.yaw;
_actuators.control[CH_THR] = _manual.throttle;
} else if (_status.main_state == MAIN_STATE_SEATBELT ||
_status.main_state == MAIN_STATE_EASY /* TODO, implement easy */) {
} else if (_status.main_state == MAIN_STATE_ALTCTL ||
_status.main_state == MAIN_STATE_POSCTL /* TODO, implement pos control */) {
// calculate velocity, XXX should be airspeed, but using ground speed for now
// for the purpose of control we will limit the velocity feedback between
src/modules/fixedwing_pos_control/fixedwing_pos_control_main.c
-479
View File
@@ -1,479 +0,0 @@
/****************************************************************************
*
* Copyright (C) 2012 PX4 Development Team. All rights reserved.
* Author: @author Thomas Gubler <thomasgubler@student.ethz.ch>
* @author Doug Weibel <douglas.weibel@colorado.edu>
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
* 3. Neither the name PX4 nor the names of its contributors may be
* used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*
****************************************************************************/
/**
* @file fixedwing_pos_control.c
* Implementation of a fixed wing attitude controller.
*/
#include <nuttx/config.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <fcntl.h>
#include <errno.h>
#include <math.h>
#include <poll.h>
#include <time.h>
#include <drivers/drv_hrt.h>
#include <arch/board/board.h>
#include <uORB/uORB.h>
#include <uORB/topics/vehicle_global_position.h>
#include <uORB/topics/vehicle_global_position_setpoint.h>
#include <uORB/topics/vehicle_attitude_setpoint.h>
#include <uORB/topics/manual_control_setpoint.h>
#include <uORB/topics/actuator_controls.h>
#include <uORB/topics/vehicle_rates_setpoint.h>
#include <uORB/topics/vehicle_attitude.h>
#include <uORB/topics/parameter_update.h>
#include <systemlib/param/param.h>
#include <systemlib/pid/pid.h>
#include <systemlib/geo/geo.h>
#include <systemlib/perf_counter.h>
#include <systemlib/systemlib.h>
/*
* Controller parameters, accessible via MAVLink
*
*/
PARAM_DEFINE_FLOAT(FW_HEAD_P, 0.1f);
PARAM_DEFINE_FLOAT(FW_HEADR_I, 0.1f);
PARAM_DEFINE_FLOAT(FW_HEADR_LIM, 1.5f); //TODO: think about reasonable value
PARAM_DEFINE_FLOAT(FW_XTRACK_P, 0.01745f); // Radians per meter off track
PARAM_DEFINE_FLOAT(FW_ALT_P, 0.1f);
PARAM_DEFINE_FLOAT(FW_ROLL_LIM, 0.7f); // Roll angle limit in radians
PARAM_DEFINE_FLOAT(FW_HEADR_P, 0.1f);
PARAM_DEFINE_FLOAT(FW_PITCH_LIM, 0.35f); /**< Pitch angle limit in radians per second */
struct fw_pos_control_params {
float heading_p;
float headingr_p;
float headingr_i;
float headingr_lim;
float xtrack_p;
float altitude_p;
float roll_lim;
float pitch_lim;
};
struct fw_pos_control_param_handles {
param_t heading_p;
param_t headingr_p;
param_t headingr_i;
param_t headingr_lim;
param_t xtrack_p;
param_t altitude_p;
param_t roll_lim;
param_t pitch_lim;
};
struct planned_path_segments_s {
bool segment_type;
double start_lat; // Start of line or center of arc
double start_lon;
double end_lat;
double end_lon;
float radius; // Radius of arc
float arc_start_bearing; // Bearing from center to start of arc
float arc_sweep; // Angle (radians) swept out by arc around center.
// Positive for clockwise, negative for counter-clockwise
};
/* Prototypes */
/* Internal Prototypes */
static int parameters_init(struct fw_pos_control_param_handles *h);
static int parameters_update(const struct fw_pos_control_param_handles *h, struct fw_pos_control_params *p);
/**
* Deamon management function.
*/
__EXPORT int fixedwing_pos_control_main(int argc, char *argv[]);
/**
* Mainloop of deamon.
*/
int fixedwing_pos_control_thread_main(int argc, char *argv[]);
/**
* Print the correct usage.
*/
static void usage(const char *reason);
/* Variables */
static bool thread_should_exit = false; /**< Deamon exit flag */
static bool thread_running = false; /**< Deamon status flag */
static int deamon_task; /**< Handle of deamon task / thread */
/**
* Parameter management
*/
static int parameters_init(struct fw_pos_control_param_handles *h)
{
/* PID parameters */
h->heading_p = param_find("FW_HEAD_P");
h->headingr_p = param_find("FW_HEADR_P");
h->headingr_i = param_find("FW_HEADR_I");
h->headingr_lim = param_find("FW_HEADR_LIM");
h->xtrack_p = param_find("FW_XTRACK_P");
h->altitude_p = param_find("FW_ALT_P");
h->roll_lim = param_find("FW_ROLL_LIM");
h->pitch_lim = param_find("FW_PITCH_LIM");
return OK;
}
static int parameters_update(const struct fw_pos_control_param_handles *h, struct fw_pos_control_params *p)
{
param_get(h->heading_p, &(p->heading_p));
param_get(h->headingr_p, &(p->headingr_p));
param_get(h->headingr_i, &(p->headingr_i));
param_get(h->headingr_lim, &(p->headingr_lim));
param_get(h->xtrack_p, &(p->xtrack_p));
param_get(h->altitude_p, &(p->altitude_p));
param_get(h->roll_lim, &(p->roll_lim));
param_get(h->pitch_lim, &(p->pitch_lim));
return OK;
}
/* Main Thread */
int fixedwing_pos_control_thread_main(int argc, char *argv[])
{
/* read arguments */
bool verbose = false;
for (int i = 1; i < argc; i++) {
if (strcmp(argv[i], "-v") == 0 || strcmp(argv[i], "--verbose") == 0) {
verbose = true;
}
}
/* welcome user */
printf("[fixedwing pos control] started\n");
/* declare and safely initialize all structs */
struct vehicle_global_position_s global_pos;
memset(&global_pos, 0, sizeof(global_pos));
struct vehicle_global_position_s start_pos; // Temporary variable, replace with
memset(&start_pos, 0, sizeof(start_pos)); // previous waypoint when available
struct vehicle_global_position_setpoint_s global_setpoint;
memset(&global_setpoint, 0, sizeof(global_setpoint));
struct vehicle_attitude_s att;
memset(&att, 0, sizeof(att));
struct crosstrack_error_s xtrack_err;
memset(&xtrack_err, 0, sizeof(xtrack_err));
struct parameter_update_s param_update;
memset(&param_update, 0, sizeof(param_update));
/* output structs */
struct vehicle_attitude_setpoint_s attitude_setpoint;
memset(&attitude_setpoint, 0, sizeof(attitude_setpoint));
/* publish attitude setpoint */
attitude_setpoint.roll_body = 0.0f;
attitude_setpoint.pitch_body = 0.0f;
attitude_setpoint.yaw_body = 0.0f;
attitude_setpoint.thrust = 0.0f;
orb_advert_t attitude_setpoint_pub = orb_advertise(ORB_ID(vehicle_attitude_setpoint), &attitude_setpoint);
/* subscribe */
int global_pos_sub = orb_subscribe(ORB_ID(vehicle_global_position));
int global_setpoint_sub = orb_subscribe(ORB_ID(vehicle_global_position_setpoint));
int att_sub = orb_subscribe(ORB_ID(vehicle_attitude));
int param_sub = orb_subscribe(ORB_ID(parameter_update));
/* Setup of loop */
struct pollfd fds[2] = {
{ .fd = param_sub, .events = POLLIN },
{ .fd = att_sub, .events = POLLIN }
};
bool global_sp_updated_set_once = false;
float psi_track = 0.0f;
int counter = 0;
struct fw_pos_control_params p;
struct fw_pos_control_param_handles h;
PID_t heading_controller;
PID_t heading_rate_controller;
PID_t offtrack_controller;
PID_t altitude_controller;
parameters_init(&h);
parameters_update(&h, &p);
pid_init(&heading_controller, p.heading_p, 0.0f, 0.0f, 0.0f, 10000.0f, PID_MODE_DERIVATIV_NONE, 0.0f); //arbitrary high limit
pid_init(&heading_rate_controller, p.headingr_p, p.headingr_i, 0.0f, 0.0f, p.roll_lim, PID_MODE_DERIVATIV_NONE, 0.0f);
pid_init(&altitude_controller, p.altitude_p, 0.0f, 0.0f, 0.0f, p.pitch_lim, PID_MODE_DERIVATIV_NONE, 0.0f);
pid_init(&offtrack_controller, p.xtrack_p, 0.0f, 0.0f, 0.0f , 60.0f * M_DEG_TO_RAD, PID_MODE_DERIVATIV_NONE, 0.0f); //TODO: remove hardcoded value
/* error and performance monitoring */
perf_counter_t fw_interval_perf = perf_alloc(PC_INTERVAL, "fixedwing_pos_control_interval");
perf_counter_t fw_err_perf = perf_alloc(PC_COUNT, "fixedwing_pos_control_err");
while (!thread_should_exit) {
/* wait for a sensor update, check for exit condition every 500 ms */
int ret = poll(fds, 2, 500);
if (ret < 0) {
/* poll error, count it in perf */
perf_count(fw_err_perf);
} else if (ret == 0) {
/* no return value, ignore */
} else {
/* only update parameters if they changed */
if (fds[0].revents & POLLIN) {
/* read from param to clear updated flag */
struct parameter_update_s update;
orb_copy(ORB_ID(parameter_update), param_sub, &update);
/* update parameters from storage */
parameters_update(&h, &p);
pid_set_parameters(&heading_controller, p.heading_p, 0, 0, 0, 10000.0f); //arbitrary high limit
pid_set_parameters(&heading_rate_controller, p.headingr_p, p.headingr_i, 0, 0, p.roll_lim);
pid_set_parameters(&altitude_controller, p.altitude_p, 0, 0, 0, p.pitch_lim);
pid_set_parameters(&offtrack_controller, p.xtrack_p, 0, 0, 0, 60.0f * M_DEG_TO_RAD); //TODO: remove hardcoded value
}
/* only run controller if attitude changed */
if (fds[1].revents & POLLIN) {
static uint64_t last_run = 0;
const float deltaT = (hrt_absolute_time() - last_run) / 1000000.0f;
last_run = hrt_absolute_time();
/* check if there is a new position or setpoint */
bool pos_updated;
orb_check(global_pos_sub, &pos_updated);
bool global_sp_updated;
orb_check(global_setpoint_sub, &global_sp_updated);
/* load local copies */
orb_copy(ORB_ID(vehicle_attitude), att_sub, &att);
if (pos_updated) {
orb_copy(ORB_ID(vehicle_global_position), global_pos_sub, &global_pos);
}
if (global_sp_updated) {
orb_copy(ORB_ID(vehicle_global_position_setpoint), global_setpoint_sub, &global_setpoint);
start_pos = global_pos; //for now using the current position as the startpoint (= approx. last waypoint because the setpoint switch occurs at the waypoint)
global_sp_updated_set_once = true;
psi_track = get_bearing_to_next_waypoint(global_pos.lat, global_pos.lon,
(double)global_setpoint.lat / (double)1e7d, (double)global_setpoint.lon / (double)1e7d);
printf("next wp direction: %0.4f\n", (double)psi_track);
}
/* Simple Horizontal Control */
if (global_sp_updated_set_once) {
// if (counter % 100 == 0)
// printf("lat_sp %d, ln_sp %d, lat: %d, lon: %d\n", global_setpoint.lat, global_setpoint.lon, global_pos.lat, global_pos.lon);
/* calculate crosstrack error */
// Only the case of a straight line track following handled so far
int distance_res = get_distance_to_line(&xtrack_err, (double)global_pos.lat / (double)1e7d, (double)global_pos.lon / (double)1e7d,
(double)start_pos.lat / (double)1e7d, (double)start_pos.lon / (double)1e7d,
(double)global_setpoint.lat / (double)1e7d, (double)global_setpoint.lon / (double)1e7d);
// XXX what is xtrack_err.past_end?
if (distance_res == OK /*&& !xtrack_err.past_end*/) {
float delta_psi_c = pid_calculate(&offtrack_controller, 0, xtrack_err.distance, 0.0f, 0.0f); //p.xtrack_p * xtrack_err.distance
float psi_c = psi_track + delta_psi_c;
float psi_e = psi_c - att.yaw;
/* wrap difference back onto -pi..pi range */
psi_e = _wrap_pi(psi_e);
if (verbose) {
printf("xtrack_err.distance %.4f ", (double)xtrack_err.distance);
printf("delta_psi_c %.4f ", (double)delta_psi_c);
printf("psi_c %.4f ", (double)psi_c);
printf("att.yaw %.4f ", (double)att.yaw);
printf("psi_e %.4f ", (double)psi_e);
}
/* calculate roll setpoint, do this artificially around zero */
float delta_psi_rate_c = pid_calculate(&heading_controller, psi_e, 0.0f, 0.0f, 0.0f);
float psi_rate_track = 0; //=V_gr/r_track , this will be needed for implementation of arc following
float psi_rate_c = delta_psi_rate_c + psi_rate_track;
/* limit turn rate */
if (psi_rate_c > p.headingr_lim) {
psi_rate_c = p.headingr_lim;
} else if (psi_rate_c < -p.headingr_lim) {
psi_rate_c = -p.headingr_lim;
}
float psi_rate_e = psi_rate_c - att.yawspeed;
// XXX sanity check: Assume 10 m/s stall speed and no stall condition
float ground_speed = sqrtf(global_pos.vx * global_pos.vx + global_pos.vy * global_pos.vy);
if (ground_speed < 10.0f) {
ground_speed = 10.0f;
}
float psi_rate_e_scaled = psi_rate_e * ground_speed / 9.81f; //* V_gr / g
attitude_setpoint.roll_body = pid_calculate(&heading_rate_controller, psi_rate_e_scaled, 0.0f, 0.0f, deltaT);
if (verbose) {
printf("psi_rate_c %.4f ", (double)psi_rate_c);
printf("psi_rate_e_scaled %.4f ", (double)psi_rate_e_scaled);
printf("rollbody %.4f\n", (double)attitude_setpoint.roll_body);
}
if (verbose && counter % 100 == 0)
printf("xtrack_err.distance: %0.4f, delta_psi_c: %0.4f\n", xtrack_err.distance, delta_psi_c);
} else {
if (verbose && counter % 100 == 0)
printf("distance_res: %d, past_end %d\n", distance_res, xtrack_err.past_end);
}
/* Very simple Altitude Control */
if (pos_updated) {
//TODO: take care of relative vs. ab. altitude
attitude_setpoint.pitch_body = pid_calculate(&altitude_controller, global_setpoint.altitude, global_pos.alt, 0.0f, 0.0f);
}
// XXX need speed control
attitude_setpoint.thrust = 0.7f;
/* publish the attitude setpoint */
orb_publish(ORB_ID(vehicle_attitude_setpoint), attitude_setpoint_pub, &attitude_setpoint);
/* measure in what intervals the controller runs */
perf_count(fw_interval_perf);
counter++;
} else {
// XXX no setpoint, decent default needed (loiter?)
}
}
}
}
printf("[fixedwing_pos_control] exiting.\n");
thread_running = false;
close(attitude_setpoint_pub);
fflush(stdout);
exit(0);
return 0;
}
/* Startup Functions */
static void
usage(const char *reason)
{
if (reason)
fprintf(stderr, "%s\n", reason);
fprintf(stderr, "usage: fixedwing_pos_control {start|stop|status}\n\n");
exit(1);
}
/**
* The deamon app only briefly exists to start
* the background job. The stack size assigned in the
* Makefile does only apply to this management task.
*
* The actual stack size should be set in the call
* to task_create().
*/
int fixedwing_pos_control_main(int argc, char *argv[])
{
if (argc < 1)
usage("missing command");
if (!strcmp(argv[1], "start")) {
if (thread_running) {
printf("fixedwing_pos_control already running\n");
/* this is not an error */
exit(0);
}
thread_should_exit = false;
deamon_task = task_spawn_cmd("fixedwing_pos_control",
SCHED_DEFAULT,
SCHED_PRIORITY_MAX - 20,
2048,
fixedwing_pos_control_thread_main,
(argv) ? (const char **)&argv[2] : (const char **)NULL);
thread_running = true;
exit(0);
}
if (!strcmp(argv[1], "stop")) {
thread_should_exit = true;
exit(0);
}
if (!strcmp(argv[1], "status")) {
if (thread_running) {
printf("\tfixedwing_pos_control is running\n");
} else {
printf("\tfixedwing_pos_control not started\n");
}
exit(0);
}
usage("unrecognized command");
exit(1);
}
src/modules/fixedwing_pos_control/module.mk
-40
View File
@@ -1,40 +0,0 @@
############################################################################
#
# Copyright (c) 2012, 2013 PX4 Development Team. All rights reserved.
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions
# are met:
#
# 1. Redistributions of source code must retain the above copyright
# notice, this list of conditions and the following disclaimer.
# 2. Redistributions in binary form must reproduce the above copyright
# notice, this list of conditions and the following disclaimer in
# the documentation and/or other materials provided with the
# distribution.
# 3. Neither the name PX4 nor the names of its contributors may be
# used to endorse or promote products derived from this software
# without specific prior written permission.
#
# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
# FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
# COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
# INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
# BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
# OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
# AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
# ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
# POSSIBILITY OF SUCH DAMAGE.
#
############################################################################
#
# Fixedwing PositionControl application
#
MODULE_COMMAND = fixedwing_pos_control
SRCS = fixedwing_pos_control_main.c
src/modules/fw_att_control/fw_att_control_main.cpp
+66 -22
View File
@@ -134,6 +134,8 @@ private:
struct vehicle_global_position_s _global_pos; /**< global position */
perf_counter_t _loop_perf; /**< loop performance counter */
perf_counter_t _nonfinite_input_perf; /**< performance counter for non finite input */
perf_counter_t _nonfinite_output_perf; /**< performance counter for non finite output */
bool _setpoint_valid; /**< flag if the position control setpoint is valid */
@@ -273,7 +275,7 @@ private:
/**
* Main sensor collection task.
*/
void task_main() __attribute__((noreturn));
void task_main();
};
namespace att_control
@@ -304,12 +306,14 @@ FixedwingAttitudeControl::FixedwingAttitudeControl() :
/* publications */
_rate_sp_pub(-1),
_actuators_0_pub(-1),
_attitude_sp_pub(-1),
_actuators_0_pub(-1),
_actuators_1_pub(-1),
/* performance counters */
_loop_perf(perf_alloc(PC_ELAPSED, "fw att control")),
_nonfinite_input_perf(perf_alloc(PC_COUNT, "fw att control nonfinite input")),
_nonfinite_output_perf(perf_alloc(PC_COUNT, "fw att control nonfinite output")),
/* states */
_setpoint_valid(false)
{
@@ -387,6 +391,10 @@ FixedwingAttitudeControl::~FixedwingAttitudeControl()
} while (_control_task != -1);
}
perf_free(_loop_perf);
perf_free(_nonfinite_input_perf);
perf_free(_nonfinite_output_perf);
att_control::g_control = nullptr;
}
@@ -592,6 +600,8 @@ FixedwingAttitudeControl::task_main()
while (!_task_should_exit) {
static int loop_counter = 0;
/* wait for up to 500ms for data */
int pret = poll(&fds[0], (sizeof(fds) / sizeof(fds[0])), 100);
@@ -672,10 +682,12 @@ FixedwingAttitudeControl::task_main()
float airspeed;
/* if airspeed is not updating, we assume the normal average speed */
if (!isfinite(_airspeed.true_airspeed_m_s) ||
if (bool nonfinite = !isfinite(_airspeed.true_airspeed_m_s) ||
hrt_elapsed_time(&_airspeed.timestamp) > 1e6) {
airspeed = _parameters.airspeed_trim;
if (nonfinite) {
perf_count(_nonfinite_input_perf);
}
} else {
airspeed = _airspeed.true_airspeed_m_s;
}
@@ -706,20 +718,21 @@ FixedwingAttitudeControl::task_main()
} else {
/*
* Scale down roll and pitch as the setpoints are radians
* and a typical remote can only do 45 degrees, the mapping is
* -1..+1 to -45..+45 degrees or -0.75..+0.75 radians.
* and a typical remote can only do around 45 degrees, the mapping is
* -1..+1 to -man_roll_max rad..+man_roll_max rad (equivalent for pitch)
*
* With this mapping the stick angle is a 1:1 representation of
* the commanded attitude. If more than 45 degrees are desired,
* a scaling parameter can be applied to the remote.
* the commanded attitude.
*
* The trim gets subtracted here from the manual setpoint to get
* the intended attitude setpoint. Later, after the rate control step the
* trim is added again to the control signal.
*/
roll_sp = (_manual.roll * _parameters.man_roll_max - _parameters.trim_roll) + _parameters.rollsp_offset_rad;
pitch_sp = (-_manual.pitch * _parameters.man_pitch_max - _parameters.trim_pitch) + _parameters.pitchsp_offset_rad;
throttle_sp = _manual.throttle;
roll_sp = (_manual.y * _parameters.man_roll_max - _parameters.trim_roll)
+ _parameters.rollsp_offset_rad;
pitch_sp = -(_manual.x * _parameters.man_pitch_max - _parameters.trim_pitch)
+ _parameters.pitchsp_offset_rad;
throttle_sp = _manual.z;
_actuators.control[4] = _manual.flaps;
/*
@@ -754,7 +767,9 @@ FixedwingAttitudeControl::task_main()
speed_body_v = _att.R[0][1] * _global_pos.vel_n + _att.R[1][1] * _global_pos.vel_e + _att.R[2][1] * _global_pos.vel_d;
speed_body_w = _att.R[0][2] * _global_pos.vel_n + _att.R[1][2] * _global_pos.vel_e + _att.R[2][2] * _global_pos.vel_d;
} else {
warnx("Did not get a valid R\n");
if (loop_counter % 10 == 0) {
warnx("Did not get a valid R\n");
}
}
/* Run attitude controllers */
@@ -772,7 +787,12 @@ FixedwingAttitudeControl::task_main()
_parameters.airspeed_min, _parameters.airspeed_max, airspeed, airspeed_scaling, lock_integrator);
_actuators.control[0] = (isfinite(roll_u)) ? roll_u + _parameters.trim_roll : _parameters.trim_roll;
if (!isfinite(roll_u)) {
warnx("roll_u %.4f", roll_u);
_roll_ctrl.reset_integrator();
perf_count(_nonfinite_output_perf);
if (loop_counter % 10 == 0) {
warnx("roll_u %.4f", (double)roll_u);
}
}
float pitch_u = _pitch_ctrl.control_bodyrate(_att.roll, _att.pitch,
@@ -781,8 +801,22 @@ FixedwingAttitudeControl::task_main()
_parameters.airspeed_min, _parameters.airspeed_max, airspeed, airspeed_scaling, lock_integrator);
_actuators.control[1] = (isfinite(pitch_u)) ? pitch_u + _parameters.trim_pitch : _parameters.trim_pitch;
if (!isfinite(pitch_u)) {
warnx("pitch_u %.4f, _yaw_ctrl.get_desired_rate() %.4f, airspeed %.4f, airspeed_scaling %.4f, roll_sp %.4f, pitch_sp %.4f, _roll_ctrl.get_desired_rate() %.4f, _pitch_ctrl.get_desired_rate() %.4f att_sp.roll_body %.4f",
pitch_u, _yaw_ctrl.get_desired_rate(), airspeed, airspeed_scaling, roll_sp, pitch_sp, _roll_ctrl.get_desired_rate(), _pitch_ctrl.get_desired_rate(), _att_sp.roll_body);
_pitch_ctrl.reset_integrator();
perf_count(_nonfinite_output_perf);
if (loop_counter % 10 == 0) {
warnx("pitch_u %.4f, _yaw_ctrl.get_desired_rate() %.4f,"
" airspeed %.4f, airspeed_scaling %.4f,"
" roll_sp %.4f, pitch_sp %.4f,"
" _roll_ctrl.get_desired_rate() %.4f,"
" _pitch_ctrl.get_desired_rate() %.4f"
" att_sp.roll_body %.4f",
(double)pitch_u, (double)_yaw_ctrl.get_desired_rate(),
(double)airspeed, (double)airspeed_scaling,
(double)roll_sp, (double)pitch_sp,
(double)_roll_ctrl.get_desired_rate(),
(double)_pitch_ctrl.get_desired_rate(),
(double)_att_sp.roll_body);
}
}
float yaw_u = _yaw_ctrl.control_bodyrate(_att.roll, _att.pitch,
@@ -791,16 +825,25 @@ FixedwingAttitudeControl::task_main()
_parameters.airspeed_min, _parameters.airspeed_max, airspeed, airspeed_scaling, lock_integrator);
_actuators.control[2] = (isfinite(yaw_u)) ? yaw_u + _parameters.trim_yaw : _parameters.trim_yaw;
if (!isfinite(yaw_u)) {
warnx("yaw_u %.4f", yaw_u);
_yaw_ctrl.reset_integrator();
perf_count(_nonfinite_output_perf);
if (loop_counter % 10 == 0) {
warnx("yaw_u %.4f", (double)yaw_u);
}
}
/* throttle passed through */
_actuators.control[3] = (isfinite(throttle_sp)) ? throttle_sp : 0.0f;
if (!isfinite(throttle_sp)) {
warnx("throttle_sp %.4f", throttle_sp);
if (loop_counter % 10 == 0) {
warnx("throttle_sp %.4f", (double)throttle_sp);
}
}
} else {
warnx("Non-finite setpoint roll_sp: %.4f, pitch_sp %.4f", roll_sp, pitch_sp);
perf_count(_nonfinite_input_perf);
if (loop_counter % 10 == 0) {
warnx("Non-finite setpoint roll_sp: %.4f, pitch_sp %.4f", (double)roll_sp, (double)pitch_sp);
}
}
/*
@@ -825,10 +868,10 @@ FixedwingAttitudeControl::task_main()
} else {
/* manual/direct control */
_actuators.control[0] = _manual.roll;
_actuators.control[1] = -_manual.pitch;
_actuators.control[2] = _manual.yaw;
_actuators.control[3] = _manual.throttle;
_actuators.control[0] = _manual.y;
_actuators.control[1] = -_manual.x;
_actuators.control[2] = _manual.r;
_actuators.control[3] = _manual.z;
_actuators.control[4] = _manual.flaps;
}
@@ -864,6 +907,7 @@ FixedwingAttitudeControl::task_main()
}
loop_counter++;
perf_end(_loop_perf);
}
src/modules/fw_att_pos_estimator/estimator.cpp
-2248
View File
File diff suppressed because it is too large Load Diff
src/modules/fw_att_pos_estimator/fw_att_pos_estimator_params.c
-117
View File
@@ -1,117 +0,0 @@
/****************************************************************************
*
* Copyright (c) 2013, 2014 PX4 Development Team. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
* 3. Neither the name PX4 nor the names of its contributors may be
* used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*
****************************************************************************/
/**
* @file fw_att_pos_estimator_params.c
*
* Parameters defined by the attitude and position estimator task
*
* @author Lorenz Meier <lm@inf.ethz.ch>
*/
#include <nuttx/config.h>
#include <systemlib/param/param.h>
/*
* Estimator parameters, accessible via MAVLink
*
*/
/**
* Velocity estimate delay
*
* The delay in milliseconds of the velocity estimate from GPS.
*
* @min 0
* @max 1000
* @group Position Estimator
*/
PARAM_DEFINE_INT32(PE_VEL_DELAY_MS, 230);
/**
* Position estimate delay
*
* The delay in milliseconds of the position estimate from GPS.
*
* @min 0
* @max 1000
* @group Position Estimator
*/
PARAM_DEFINE_INT32(PE_POS_DELAY_MS, 210);
/**
* Height estimate delay
*
* The delay in milliseconds of the height estimate from the barometer.
*
* @min 0
* @max 1000
* @group Position Estimator
*/
PARAM_DEFINE_INT32(PE_HGT_DELAY_MS, 350);
/**
* Mag estimate delay
*
* The delay in milliseconds of the magnetic field estimate from
* the magnetometer.
*
* @min 0
* @max 1000
* @group Position Estimator
*/
PARAM_DEFINE_INT32(PE_MAG_DELAY_MS, 30);
/**
* True airspeeed estimate delay
*
* The delay in milliseconds of the airspeed estimate.
*
* @min 0
* @max 1000
* @group Position Estimator
*/
PARAM_DEFINE_INT32(PE_TAS_DELAY_MS, 210);
/**
* GPS vs. barometric altitude update weight
*
* RE-CHECK this.
*
* @min 0.0
* @max 1.0
* @group Position Estimator
*/
PARAM_DEFINE_FLOAT(PE_GPS_ALT_WGT, 0.9f);
src/modules/fw_pos_control_l1/fw_pos_control_l1_main.cpp
+104 -54
View File
@@ -89,6 +89,7 @@
#include <launchdetection/LaunchDetector.h>
#include <ecl/l1/ecl_l1_pos_controller.h>
#include <external_lgpl/tecs/tecs.h>
#include <drivers/drv_range_finder.h>
#include "landingslope.h"
@@ -134,6 +135,7 @@ private:
int _params_sub; /**< notification of parameter updates */
int _manual_control_sub; /**< notification of manual control updates */
int _sensor_combined_sub; /**< for body frame accelerations */
int _range_finder_sub; /**< range finder subscription */
orb_advert_t _attitude_sp_pub; /**< attitude setpoint */
orb_advert_t _nav_capabilities_pub; /**< navigation capabilities publication */
@@ -147,13 +149,14 @@ private:
struct vehicle_global_position_s _global_pos; /**< global vehicle position */
struct position_setpoint_triplet_s _pos_sp_triplet; /**< triplet of mission items */
struct sensor_combined_s _sensor_combined; /**< for body frame accelerations */
struct range_finder_report _range_finder; /**< range finder report */
perf_counter_t _loop_perf; /**< loop performance counter */
bool _setpoint_valid; /**< flag if the position control setpoint is valid */
/** manual control states */
float _seatbelt_hold_heading; /**< heading the system should hold in seatbelt mode */
float _altctrl_hold_heading; /**< heading the system should hold in altctrl mode */
double _loiter_hold_lat;
double _loiter_hold_lon;
float _loiter_hold_alt;
@@ -181,7 +184,7 @@ private:
/* Landingslope object */
Landingslope landingslope;
float flare_curve_alt_last;
float flare_curve_alt_rel_last;
/* heading hold */
float target_bearing;
@@ -229,8 +232,6 @@ private:
float throttle_land_max;
float loiter_hold_radius;
float heightrate_p;
float speedrate_p;
@@ -239,6 +240,7 @@ private:
float land_flare_alt_relative;
float land_thrust_lim_alt_relative;
float land_heading_hold_horizontal_distance;
float range_finder_rel_alt;
} _parameters; /**< local copies of interesting parameters */
@@ -273,8 +275,6 @@ private:
param_t throttle_land_max;
param_t loiter_hold_radius;
param_t heightrate_p;
param_t speedrate_p;
@@ -283,6 +283,7 @@ private:
param_t land_flare_alt_relative;
param_t land_thrust_lim_alt_relative;
param_t land_heading_hold_horizontal_distance;
param_t range_finder_rel_alt;
} _parameter_handles; /**< handles for interesting parameters */
@@ -308,6 +309,12 @@ private:
*/
bool vehicle_airspeed_poll();
/**
* Check for range finder updates.
*/
bool range_finder_poll();
/**
* Check for position updates.
*/
@@ -328,6 +335,11 @@ private:
*/
void navigation_capabilities_publish();
/**
* Get the relative alt either from the difference between estimate and waypoint or from the laser range finder
*/
float get_relative_landingalt(float land_setpoint_alt, float current_alt, const struct range_finder_report &range_finder, float range_finder_use_relative_alt);
/**
* Control position.
*/
@@ -345,7 +357,7 @@ private:
/**
* Main sensor collection task.
*/
void task_main() __attribute__((noreturn));
void task_main();
/*
* Reset takeoff state
@@ -384,6 +396,7 @@ FixedwingPositionControl::FixedwingPositionControl() :
_control_mode_sub(-1),
_params_sub(-1),
_manual_control_sub(-1),
_range_finder_sub(-1),
/* publications */
_attitude_sp_pub(-1),
@@ -401,9 +414,9 @@ FixedwingPositionControl::FixedwingPositionControl() :
land_motor_lim(false),
land_onslope(false),
launch_detected(false),
last_manual(false),
usePreTakeoffThrust(false),
flare_curve_alt_last(0.0f),
last_manual(false),
flare_curve_alt_rel_last(0.0f),
launchDetector(),
_airspeed_error(0.0f),
_airspeed_valid(false),
@@ -417,13 +430,13 @@ FixedwingPositionControl::FixedwingPositionControl() :
_control_mode(),
_global_pos(),
_pos_sp_triplet(),
_sensor_combined()
_sensor_combined(),
_range_finder()
{
_nav_capabilities.turn_distance = 0.0f;
_parameter_handles.l1_period = param_find("FW_L1_PERIOD");
_parameter_handles.l1_damping = param_find("FW_L1_DAMPING");
_parameter_handles.loiter_hold_radius = param_find("FW_LOITER_R");
_parameter_handles.airspeed_min = param_find("FW_AIRSPD_MIN");
_parameter_handles.airspeed_trim = param_find("FW_AIRSPD_TRIM");
@@ -442,6 +455,7 @@ FixedwingPositionControl::FixedwingPositionControl() :
_parameter_handles.land_flare_alt_relative = param_find("FW_LND_FLALT");
_parameter_handles.land_thrust_lim_alt_relative = param_find("FW_LND_TLALT");
_parameter_handles.land_heading_hold_horizontal_distance = param_find("FW_LND_HHDIST");
_parameter_handles.range_finder_rel_alt = param_find("FW_LND_RFRALT");
_parameter_handles.time_const = param_find("FW_T_TIME_CONST");
_parameter_handles.min_sink_rate = param_find("FW_T_SINK_MIN");
@@ -494,7 +508,6 @@ FixedwingPositionControl::parameters_update()
/* L1 control parameters */
param_get(_parameter_handles.l1_damping, &(_parameters.l1_damping));
param_get(_parameter_handles.l1_period, &(_parameters.l1_period));
param_get(_parameter_handles.loiter_hold_radius, &(_parameters.loiter_hold_radius));
param_get(_parameter_handles.airspeed_min, &(_parameters.airspeed_min));
param_get(_parameter_handles.airspeed_trim, &(_parameters.airspeed_trim));
@@ -531,6 +544,8 @@ FixedwingPositionControl::parameters_update()
param_get(_parameter_handles.land_thrust_lim_alt_relative, &(_parameters.land_thrust_lim_alt_relative));
param_get(_parameter_handles.land_heading_hold_horizontal_distance, &(_parameters.land_heading_hold_horizontal_distance));
param_get(_parameter_handles.range_finder_rel_alt, &(_parameters.range_finder_rel_alt));
_l1_control.set_l1_damping(_parameters.l1_damping);
_l1_control.set_l1_period(_parameters.l1_period);
_l1_control.set_l1_roll_limit(math::radians(_parameters.roll_limit));
@@ -626,6 +641,20 @@ FixedwingPositionControl::vehicle_airspeed_poll()
return airspeed_updated;
}
bool
FixedwingPositionControl::range_finder_poll()
{
/* check if there is a range finder measurement */
bool range_finder_updated;
orb_check(_range_finder_sub, &range_finder_updated);
if (range_finder_updated) {
orb_copy(ORB_ID(sensor_range_finder), _range_finder_sub, &_range_finder);
}
return range_finder_updated;
}
void
FixedwingPositionControl::vehicle_attitude_poll()
{
@@ -754,6 +783,23 @@ void FixedwingPositionControl::navigation_capabilities_publish()
}
}
float FixedwingPositionControl::get_relative_landingalt(float land_setpoint_alt, float current_alt, const struct range_finder_report &range_finder, float range_finder_use_relative_alt)
{
float rel_alt_estimated = current_alt - land_setpoint_alt;
/* only use range finder if:
* parameter (range_finder_use_relative_alt) > 0
* the measurement is valid
* the estimated relative altitude (from global altitude estimate and landing waypoint) <= range_finder_use_relative_alt
*/
if (range_finder_use_relative_alt < 0 || !range_finder.valid || rel_alt_estimated > range_finder_use_relative_alt ) {
return rel_alt_estimated;
}
return range_finder.distance;
}
bool
FixedwingPositionControl::control_position(const math::Vector<2> &current_position, const math::Vector<2> &ground_speed,
const struct position_setpoint_triplet_s &pos_sp_triplet)
@@ -896,12 +942,14 @@ FixedwingPositionControl::control_position(const math::Vector<2> &current_positi
/* Calculate distance (to landing waypoint) and altitude of last ordinary waypoint L */
float L_wp_distance = get_distance_to_next_waypoint(prev_wp(0), prev_wp(1), curr_wp(0), curr_wp(1));
float L_altitude = landingslope.getLandingSlopeAbsoluteAltitude(L_wp_distance, _pos_sp_triplet.current.alt);
float L_altitude_rel = landingslope.getLandingSlopeRelativeAltitude(L_wp_distance);
float bearing_airplane_currwp = get_bearing_to_next_waypoint(current_position(0), current_position(1), curr_wp(0), curr_wp(1));
float landing_slope_alt_desired = landingslope.getLandingSlopeAbsoluteAltitudeSave(wp_distance, bearing_lastwp_currwp, bearing_airplane_currwp, _pos_sp_triplet.current.alt);
float landing_slope_alt_rel_desired = landingslope.getLandingSlopeRelativeAltitudeSave(wp_distance, bearing_lastwp_currwp, bearing_airplane_currwp);
if ( (_global_pos.alt < _pos_sp_triplet.current.alt + landingslope.flare_relative_alt()) || land_noreturn_vertical) { //checking for land_noreturn to avoid unwanted climb out
float relative_alt = get_relative_landingalt(_pos_sp_triplet.current.alt, _global_pos.alt, _range_finder, _parameters.range_finder_rel_alt);
if ( (relative_alt < landingslope.flare_relative_alt()) || land_noreturn_vertical) { //checking for land_noreturn to avoid unwanted climb out
/* land with minimal speed */
@@ -911,7 +959,7 @@ FixedwingPositionControl::control_position(const math::Vector<2> &current_positi
/* kill the throttle if param requests it */
throttle_max = _parameters.throttle_max;
if (_global_pos.alt < _pos_sp_triplet.current.alt + landingslope.motor_lim_relative_alt() || land_motor_lim) {
if (relative_alt < landingslope.motor_lim_relative_alt() || land_motor_lim) {
throttle_max = math::min(throttle_max, _parameters.throttle_land_max);
if (!land_motor_lim) {
land_motor_lim = true;
@@ -920,16 +968,16 @@ FixedwingPositionControl::control_position(const math::Vector<2> &current_positi
}
float flare_curve_alt = landingslope.getFlareCurveAltitudeSave(wp_distance, bearing_lastwp_currwp, bearing_airplane_currwp, _pos_sp_triplet.current.alt);
float flare_curve_alt_rel = landingslope.getFlareCurveRelativeAltitudeSave(wp_distance, bearing_lastwp_currwp, bearing_airplane_currwp);
/* avoid climbout */
if ((flare_curve_alt_last < flare_curve_alt && land_noreturn_vertical) || land_stayonground)
if ((flare_curve_alt_rel_last < flare_curve_alt_rel && land_noreturn_vertical) || land_stayonground)
{
flare_curve_alt = pos_sp_triplet.current.alt;
flare_curve_alt_rel = 0.0f; // stay on ground
land_stayonground = true;
}
_tecs.update_pitch_throttle(_R_nb, _att.pitch, _global_pos.alt, flare_curve_alt, calculate_target_airspeed(airspeed_land),
_tecs.update_pitch_throttle(_R_nb, _att.pitch, _pos_sp_triplet.current.alt + relative_alt, _pos_sp_triplet.current.alt + flare_curve_alt_rel, calculate_target_airspeed(airspeed_land),
_airspeed.indicated_airspeed_m_s, eas2tas,
false, flare_pitch_angle_rad,
0.0f, throttle_max, throttle_land,
@@ -941,7 +989,7 @@ FixedwingPositionControl::control_position(const math::Vector<2> &current_positi
}
//warnx("Landing: flare, _global_pos.alt %.1f, flare_curve_alt %.1f, flare_curve_alt_last %.1f, flare_length %.1f, wp_distance %.1f", _global_pos.alt, flare_curve_alt, flare_curve_alt_last, flare_length, wp_distance);
flare_curve_alt_last = flare_curve_alt;
flare_curve_alt_rel_last = flare_curve_alt_rel;
} else {
/* intersect glide slope:
@@ -949,20 +997,20 @@ FixedwingPositionControl::control_position(const math::Vector<2> &current_positi
* if current position is higher or within 10m of slope follow the glide slope
* if current position is below slope -10m continue on maximum of previous wp altitude or L_altitude until the intersection with the slope
* */
float altitude_desired = _global_pos.alt;
if (_global_pos.alt > landing_slope_alt_desired - 10.0f) {
float altitude_desired_rel = relative_alt;
if (relative_alt > landing_slope_alt_rel_desired - 10.0f) {
/* stay on slope */
altitude_desired = landing_slope_alt_desired;
altitude_desired_rel = landing_slope_alt_rel_desired;
if (!land_onslope) {
mavlink_log_info(_mavlink_fd, "#audio: Landing, on slope");
land_onslope = true;
}
} else {
/* continue horizontally */
altitude_desired = math::max(_global_pos.alt, L_altitude);
altitude_desired_rel = math::max(relative_alt, L_altitude_rel);
}
_tecs.update_pitch_throttle(_R_nb, _att.pitch, _global_pos.alt, altitude_desired, calculate_target_airspeed(airspeed_approach),
_tecs.update_pitch_throttle(_R_nb, _att.pitch, _pos_sp_triplet.current.alt + relative_alt, _pos_sp_triplet.current.alt + altitude_desired_rel, calculate_target_airspeed(airspeed_approach),
_airspeed.indicated_airspeed_m_s, eas2tas,
false, math::radians(_parameters.pitch_limit_min),
_parameters.throttle_min, _parameters.throttle_max, _parameters.throttle_cruise,
@@ -1051,16 +1099,16 @@ FixedwingPositionControl::control_position(const math::Vector<2> &current_positi
_att_sp.roll_reset_integral = true;
}
} else if (0/* easy mode enabled */) {
} else if (0/* posctrl mode enabled */) {
/** EASY FLIGHT **/
/** POSCTRL FLIGHT **/
if (0/* switched from another mode to easy */) {
_seatbelt_hold_heading = _att.yaw;
if (0/* switched from another mode to posctrl */) {
_altctrl_hold_heading = _att.yaw;
}
if (0/* easy on and manual control yaw non-zero */) {
_seatbelt_hold_heading = _att.yaw + _manual.yaw;
if (0/* posctrl on and manual control yaw non-zero */) {
_altctrl_hold_heading = _att.yaw + _manual.r;
}
//XXX not used
@@ -1073,44 +1121,44 @@ FixedwingPositionControl::control_position(const math::Vector<2> &current_positi
// climb_out = true;
// }
/* if in seatbelt mode, set airspeed based on manual control */
/* if in altctrl mode, set airspeed based on manual control */
// XXX check if ground speed undershoot should be applied here
float seatbelt_airspeed = _parameters.airspeed_min +
float altctrl_airspeed = _parameters.airspeed_min +
(_parameters.airspeed_max - _parameters.airspeed_min) *
_manual.throttle;
_manual.z;
_l1_control.navigate_heading(_seatbelt_hold_heading, _att.yaw, ground_speed);
_l1_control.navigate_heading(_altctrl_hold_heading, _att.yaw, ground_speed);
_att_sp.roll_body = _l1_control.nav_roll();
_att_sp.yaw_body = _l1_control.nav_bearing();
_tecs.update_pitch_throttle(_R_nb, _att.pitch, _global_pos.alt, _global_pos.alt + _manual.pitch * 2.0f,
seatbelt_airspeed,
_tecs.update_pitch_throttle(_R_nb, _att.pitch, _global_pos.alt, _global_pos.alt + _manual.x * 2.0f,
altctrl_airspeed,
_airspeed.indicated_airspeed_m_s, eas2tas,
false, _parameters.pitch_limit_min,
_parameters.throttle_min, _parameters.throttle_max, _parameters.throttle_cruise,
_parameters.pitch_limit_min, _parameters.pitch_limit_max);
} else if (0/* seatbelt mode enabled */) {
} else if (0/* altctrl mode enabled */) {
/** SEATBELT FLIGHT **/
/** ALTCTRL FLIGHT **/
if (0/* switched from another mode to seatbelt */) {
_seatbelt_hold_heading = _att.yaw;
if (0/* switched from another mode to altctrl */) {
_altctrl_hold_heading = _att.yaw;
}
if (0/* seatbelt on and manual control yaw non-zero */) {
_seatbelt_hold_heading = _att.yaw + _manual.yaw;
if (0/* altctrl on and manual control yaw non-zero */) {
_altctrl_hold_heading = _att.yaw + _manual.r;
}
/* if in seatbelt mode, set airspeed based on manual control */
/* if in altctrl mode, set airspeed based on manual control */
// XXX check if ground speed undershoot should be applied here
float seatbelt_airspeed = _parameters.airspeed_min +
float altctrl_airspeed = _parameters.airspeed_min +
(_parameters.airspeed_max - _parameters.airspeed_min) *
_manual.throttle;
_manual.z;
/* user switched off throttle */
if (_manual.throttle < 0.1f) {
if (_manual.z < 0.1f) {
throttle_max = 0.0f;
/* switch to pure pitch based altitude control, give up speed */
_tecs.set_speed_weight(0.0f);
@@ -1120,15 +1168,15 @@ FixedwingPositionControl::control_position(const math::Vector<2> &current_positi
bool climb_out = false;
/* user wants to climb out */
if (_manual.pitch > 0.3f && _manual.throttle > 0.8f) {
if (_manual.x > 0.3f && _manual.z > 0.8f) {
climb_out = true;
}
_l1_control.navigate_heading(_seatbelt_hold_heading, _att.yaw, ground_speed);
_att_sp.roll_body = _manual.roll;
_att_sp.yaw_body = _manual.yaw;
_tecs.update_pitch_throttle(_R_nb, _att.pitch, _global_pos.alt, _global_pos.alt + _manual.pitch * 2.0f,
seatbelt_airspeed,
_l1_control.navigate_heading(_altctrl_hold_heading, _att.yaw, ground_speed);
_att_sp.roll_body = _manual.y;
_att_sp.yaw_body = _manual.r;
_tecs.update_pitch_throttle(_R_nb, _att.pitch, _global_pos.alt, _global_pos.alt + _manual.x * 2.0f,
altctrl_airspeed,
_airspeed.indicated_airspeed_m_s, eas2tas,
climb_out, _parameters.pitch_limit_min,
_parameters.throttle_min, _parameters.throttle_max, _parameters.throttle_cruise,
@@ -1185,6 +1233,7 @@ FixedwingPositionControl::task_main()
_airspeed_sub = orb_subscribe(ORB_ID(airspeed));
_params_sub = orb_subscribe(ORB_ID(parameter_update));
_manual_control_sub = orb_subscribe(ORB_ID(manual_control_setpoint));
_range_finder_sub = orb_subscribe(ORB_ID(sensor_range_finder));
/* rate limit vehicle status updates to 5Hz */
orb_set_interval(_control_mode_sub, 200);
@@ -1264,6 +1313,7 @@ FixedwingPositionControl::task_main()
vehicle_setpoint_poll();
vehicle_sensor_combined_poll();
vehicle_airspeed_poll();
range_finder_poll();
// vehicle_baro_poll();
math::Vector<2> ground_speed(_global_pos.vel_n, _global_pos.vel_e);
src/modules/fw_pos_control_l1/fw_pos_control_l1_params.c
+11 -11
View File
@@ -71,17 +71,6 @@ PARAM_DEFINE_FLOAT(FW_L1_PERIOD, 25.0f);
*/
PARAM_DEFINE_FLOAT(FW_L1_DAMPING, 0.75f);
/**
* Default Loiter Radius
*
* This radius is used when no other loiter radius is set.
*
* @min 10.0
* @max 100.0
* @group L1 Control
*/
PARAM_DEFINE_FLOAT(FW_LOITER_R, 50.0f);
/**
* Cruise throttle
*
@@ -375,3 +364,14 @@ PARAM_DEFINE_FLOAT(FW_LND_TLALT, 5.0f);
* @group L1 Control
*/
PARAM_DEFINE_FLOAT(FW_LND_HHDIST, 15.0f);
/**
* Relative altitude threshold for range finder measurements for use during landing
*
* range finder measurements will only be used if the estimated relative altitude (gobal_pos.alt - landing_waypoint.alt) is < FW_LND_RFRALT
* set to < 0 to disable
* the correct value of this parameter depends on your range measuring device as well as on the terrain at the landing location
*
* @group L1 Control
*/
PARAM_DEFINE_FLOAT(FW_LND_RFRALT, -1.0f);
src/modules/fw_pos_control_l1/landingslope.cpp
+27 -7
View File
@@ -69,26 +69,46 @@ void Landingslope::calculateSlopeValues()
_horizontal_slope_displacement = (_flare_length - _d1);
}
float Landingslope::getLandingSlopeAbsoluteAltitude(float wp_distance, float wp_altitude)
float Landingslope::getLandingSlopeRelativeAltitude(float wp_landing_distance)
{
return Landingslope::getLandingSlopeAbsoluteAltitude(wp_distance, wp_altitude, _horizontal_slope_displacement, _landing_slope_angle_rad);
return Landingslope::getLandingSlopeRelativeAltitude(wp_landing_distance, _horizontal_slope_displacement, _landing_slope_angle_rad);
}
float Landingslope::getLandingSlopeAbsoluteAltitudeSave(float wp_distance, float bearing_lastwp_currwp, float bearing_airplane_currwp, float wp_altitude)
float Landingslope::getLandingSlopeRelativeAltitudeSave(float wp_landing_distance, float bearing_lastwp_currwp, float bearing_airplane_currwp)
{
/* If airplane is in front of waypoint return slope altitude, else return waypoint altitude */
if (fabsf(bearing_airplane_currwp - bearing_lastwp_currwp) < math::radians(90.0f))
return getLandingSlopeAbsoluteAltitude(wp_distance, wp_altitude);
return getLandingSlopeRelativeAltitude(wp_landing_distance);
else
return 0.0f;
}
float Landingslope::getLandingSlopeAbsoluteAltitude(float wp_landing_distance, float wp_altitude)
{
return Landingslope::getLandingSlopeAbsoluteAltitude(wp_landing_distance, wp_altitude, _horizontal_slope_displacement, _landing_slope_angle_rad);
}
float Landingslope::getLandingSlopeAbsoluteAltitudeSave(float wp_landing_distance, float bearing_lastwp_currwp, float bearing_airplane_currwp, float wp_altitude)
{
/* If airplane is in front of waypoint return slope altitude, else return waypoint altitude */
if (fabsf(bearing_airplane_currwp - bearing_lastwp_currwp) < math::radians(90.0f))
return getLandingSlopeAbsoluteAltitude(wp_landing_distance, wp_altitude);
else
return wp_altitude;
}
float Landingslope::getFlareCurveAltitudeSave(float wp_landing_distance, float bearing_lastwp_currwp, float bearing_airplane_currwp, float wp_landing_altitude)
float Landingslope::getFlareCurveRelativeAltitudeSave(float wp_landing_distance, float bearing_lastwp_currwp, float bearing_airplane_currwp)
{
/* If airplane is in front of waypoint return flare curve altitude, else return waypoint altitude */
if (fabsf(bearing_airplane_currwp - bearing_lastwp_currwp) < math::radians(90.0f))
return wp_landing_altitude + _H0 * expf(-math::max(0.0f, _flare_length - wp_landing_distance)/_flare_constant) - _H1_virt;
return _H0 * expf(-math::max(0.0f, _flare_length - wp_landing_distance)/_flare_constant) - _H1_virt;
else
return wp_landing_altitude;
return 0.0f;
}
float Landingslope::getFlareCurveAbsoluteAltitudeSave(float wp_landing_distance, float bearing_lastwp_currwp, float bearing_airplane_currwp, float wp_landing_altitude)
{
return wp_landing_altitude + getFlareCurveRelativeAltitudeSave(wp_landing_distance, bearing_lastwp_currwp, bearing_airplane_currwp);
}
src/modules/fw_pos_control_l1/landingslope.h
+28 -3
View File
@@ -63,11 +63,26 @@ public:
Landingslope() {}
~Landingslope() {}
/**
*
* @return relative altitude of point on landing slope at distance to landing waypoint=wp_landing_distance
*/
float getLandingSlopeRelativeAltitude(float wp_landing_distance);
/**
*
* @return relative altitude of point on landing slope at distance to landing waypoint=wp_landing_distance
* Performs check if aircraft is in front of waypoint to avoid climbout
*/
float getLandingSlopeRelativeAltitudeSave(float wp_landing_distance, float bearing_lastwp_currwp, float bearing_airplane_currwp);
/**
*
* @return Absolute altitude of point on landing slope at distance to landing waypoint=wp_landing_distance
*/
float getLandingSlopeAbsoluteAltitude(float wp_distance, float wp_altitude);
float getLandingSlopeAbsoluteAltitude(float wp_landing_distance, float wp_altitude);
/**
*
@@ -76,13 +91,22 @@ public:
*/
float getLandingSlopeAbsoluteAltitudeSave(float wp_landing_distance, float bearing_lastwp_currwp, float bearing_airplane_currwp, float wp_landing_altitude);
/**
*
* @return Relative altitude of point on landing slope at distance to landing waypoint=wp_landing_distance
*/
__EXPORT static float getLandingSlopeRelativeAltitude(float wp_landing_distance, float horizontal_slope_displacement, float landing_slope_angle_rad)
{
return (wp_landing_distance - horizontal_slope_displacement) * tanf(landing_slope_angle_rad); //flare_relative_alt is negative
}
/**
*
* @return Absolute altitude of point on landing slope at distance to landing waypoint=wp_landing_distance
*/
__EXPORT static float getLandingSlopeAbsoluteAltitude(float wp_landing_distance, float wp_landing_altitude, float horizontal_slope_displacement, float landing_slope_angle_rad)
{
return (wp_landing_distance - horizontal_slope_displacement) * tanf(landing_slope_angle_rad) + wp_landing_altitude; //flare_relative_alt is negative
return getLandingSlopeRelativeAltitude(wp_landing_distance, horizontal_slope_displacement, landing_slope_angle_rad) + wp_landing_altitude;
}
/**
@@ -95,8 +119,9 @@ public:
}
float getFlareCurveRelativeAltitudeSave(float wp_distance, float bearing_lastwp_currwp, float bearing_airplane_currwp);
float getFlareCurveAltitudeSave(float wp_distance, float bearing_lastwp_currwp, float bearing_airplane_currwp, float wp_altitude);
float getFlareCurveAbsoluteAltitudeSave(float wp_distance, float bearing_lastwp_currwp, float bearing_airplane_currwp, float wp_altitude);
void update(float landing_slope_angle_rad,
float flare_relative_alt,
src/modules/mavlink/mavlink_main.cpp
+64 -72
View File
@@ -105,7 +105,8 @@ static struct file_operations fops;
*/
extern "C" __EXPORT int mavlink_main(int argc, char *argv[]);
static uint64_t last_write_times[6] = {0};
static uint64_t last_write_success_times[6] = {0};
static uint64_t last_write_try_times[6] = {0};
/*
* Internal function to send the bytes through the right serial port
@@ -149,10 +150,7 @@ mavlink_send_uart_bytes(mavlink_channel_t channel, const uint8_t *ch, int length
instance = Mavlink::get_instance(6);
break;
#endif
}
/* no valid instance, bail */
if (!instance) {
default:
return;
}
@@ -169,29 +167,40 @@ mavlink_send_uart_bytes(mavlink_channel_t channel, const uint8_t *ch, int length
if (instance->get_flow_control_enabled()
&& ioctl(uart, FIONWRITE, (unsigned long)&buf_free) == 0) {
if (buf_free == 0) {
if (last_write_times[(unsigned)channel] != 0 &&
hrt_elapsed_time(&last_write_times[(unsigned)channel]) > 500 * 1000UL) {
warnx("DISABLING HARDWARE FLOW CONTROL");
instance->enable_flow_control(false);
}
} else {
/* apparently there is space left, although we might be
* partially overflooding the buffer already */
last_write_times[(unsigned)channel] = hrt_absolute_time();
/* Disable hardware flow control:
* if no successful write since a defined time
* and if the last try was not the last successful write
*/
if (last_write_try_times[(unsigned)channel] != 0 &&
hrt_elapsed_time(&last_write_success_times[(unsigned)channel]) > 500 * 1000UL &&
last_write_success_times[(unsigned)channel] !=
last_write_try_times[(unsigned)channel])
{
warnx("DISABLING HARDWARE FLOW CONTROL");
instance->enable_flow_control(false);
}
}
/* If the wait until transmit flag is on, only transmit after we've received messages.
Otherwise, transmit all the time. */
if (instance->should_transmit()) {
ssize_t ret = write(uart, ch, desired);
last_write_try_times[(unsigned)channel] = hrt_absolute_time();
/* check if there is space in the buffer, let it overflow else */
if (!ioctl(uart, FIONWRITE, (unsigned long)&buf_free)) {
if (buf_free < desired) {
/* we don't want to send anything just in half, so return */
return;
}
}
ssize_t ret = write(uart, ch, desired);
if (ret != desired) {
// XXX do something here, but change to using FIONWRITE and OS buf size for detection
warnx("TX FAIL");
} else {
last_write_success_times[(unsigned)channel] = last_write_try_times[(unsigned)channel];
}
}
@@ -202,9 +211,9 @@ mavlink_send_uart_bytes(mavlink_channel_t channel, const uint8_t *ch, int length
static void usage(void);
Mavlink::Mavlink() :
next(nullptr),
_device_name(DEFAULT_DEVICE_NAME),
_task_should_exit(false),
next(nullptr),
_mavlink_fd(-1),
_task_running(false),
_hil_enabled(false),
@@ -216,6 +225,8 @@ Mavlink::Mavlink() :
_subscriptions(nullptr),
_streams(nullptr),
_mission_pub(-1),
_mode(MAVLINK_MODE_NORMAL),
_total_counter(0),
_verbose(false),
_forwarding_on(false),
_passing_on(false),
@@ -225,7 +236,6 @@ Mavlink::Mavlink() :
_subscribe_to_stream_rate(0.0f),
_flow_control_enabled(true),
_message_buffer({}),
/* performance counters */
_loop_perf(perf_alloc(PC_ELAPSED, "mavlink"))
{
@@ -410,7 +420,7 @@ Mavlink::instance_exists(const char *device_name, Mavlink *self)
void
Mavlink::forward_message(mavlink_message_t *msg, Mavlink *self)
{
Mavlink *inst;
LL_FOREACH(_mavlink_instances, inst) {
if (inst != self) {
@@ -727,9 +737,9 @@ int Mavlink::mavlink_pm_send_param(param_t param)
if (param == PARAM_INVALID) { return 1; }
/* buffers for param transmission */
static char name_buf[MAVLINK_MSG_PARAM_VALUE_FIELD_PARAM_ID_LEN];
char name_buf[MAVLINK_MSG_PARAM_VALUE_FIELD_PARAM_ID_LEN];
float val_buf;
static mavlink_message_t tx_msg;
mavlink_message_t tx_msg;
/* query parameter type */
param_type_t type = param_type(param);
@@ -780,9 +790,14 @@ void Mavlink::mavlink_pm_message_handler(const mavlink_channel_t chan, const mav
{
switch (msg->msgid) {
case MAVLINK_MSG_ID_PARAM_REQUEST_LIST: {
/* Start sending parameters */
mavlink_pm_start_queued_send();
mavlink_missionlib_send_gcs_string("[mavlink pm] sending list");
mavlink_param_request_list_t req;
mavlink_msg_param_request_list_decode(msg, &req);
if (req.target_system == mavlink_system.sysid &&
(req.target_component == mavlink_system.compid || req.target_component == MAV_COMP_ID_ALL)) {
/* Start sending parameters */
mavlink_pm_start_queued_send();
mavlink_missionlib_send_gcs_string("[mavlink pm] sending list");
}
} break;
case MAVLINK_MSG_ID_PARAM_SET: {
@@ -881,11 +896,12 @@ int Mavlink::map_mavlink_mission_item_to_mission_item(const mavlink_mission_item
switch (mavlink_mission_item->command) {
case MAV_CMD_NAV_TAKEOFF:
mission_item->pitch_min = mavlink_mission_item->param2;
mission_item->pitch_min = mavlink_mission_item->param1;
break;
default:
mission_item->acceptance_radius = mavlink_mission_item->param2;
mission_item->time_inside = mavlink_mission_item->param1;
break;
}
@@ -894,7 +910,6 @@ int Mavlink::map_mavlink_mission_item_to_mission_item(const mavlink_mission_item
mission_item->loiter_direction = (mavlink_mission_item->param3 > 0) ? 1 : -1; /* 1 if positive CW, -1 if negative CCW */
mission_item->nav_cmd = (NAV_CMD)mavlink_mission_item->command;
mission_item->time_inside = mavlink_mission_item->param1;
mission_item->autocontinue = mavlink_mission_item->autocontinue;
// mission_item->index = mavlink_mission_item->seq;
mission_item->origin = ORIGIN_MAVLINK;
@@ -913,11 +928,12 @@ int Mavlink::map_mission_item_to_mavlink_mission_item(const struct mission_item_
switch (mission_item->nav_cmd) {
case NAV_CMD_TAKEOFF:
mavlink_mission_item->param2 = mission_item->pitch_min;
mavlink_mission_item->param1 = mission_item->pitch_min;
break;
default:
mavlink_mission_item->param2 = mission_item->acceptance_radius;
mavlink_mission_item->param1 = mission_item->time_inside;
break;
}
@@ -928,7 +944,6 @@ int Mavlink::map_mission_item_to_mavlink_mission_item(const struct mission_item_
mavlink_mission_item->param4 = mission_item->yaw * M_RAD_TO_DEG_F;
mavlink_mission_item->param3 = mission_item->loiter_radius * (float)mission_item->loiter_direction;
mavlink_mission_item->command = mission_item->nav_cmd;
mavlink_mission_item->param1 = mission_item->time_inside;
mavlink_mission_item->autocontinue = mission_item->autocontinue;
// mavlink_mission_item->seq = mission_item->index;
@@ -944,6 +959,7 @@ void Mavlink::mavlink_wpm_init(mavlink_wpm_storage *state)
state->current_partner_compid = 0;
state->timestamp_lastaction = 0;
state->timestamp_last_send_setpoint = 0;
state->timestamp_last_send_request = 0;
state->timeout = MAVLINK_WPM_PROTOCOL_TIMEOUT_DEFAULT;
state->current_dataman_id = 0;
}
@@ -1044,6 +1060,7 @@ void Mavlink::mavlink_wpm_send_waypoint(uint8_t sysid, uint8_t compid, uint16_t
} else {
mavlink_wpm_send_waypoint_ack(_wpm->current_partner_sysid, _wpm->current_partner_compid, MAV_MISSION_ERROR);
mavlink_missionlib_send_gcs_string("#audio: Unable to read from micro SD");
if (_verbose) { warnx("ERROR: could not read WP%u", seq); }
}
@@ -1059,6 +1076,7 @@ void Mavlink::mavlink_wpm_send_waypoint_request(uint8_t sysid, uint8_t compid, u
wpr.seq = seq;
mavlink_msg_mission_request_encode_chan(mavlink_system.sysid, _mavlink_wpm_comp_id, _channel, &msg, &wpr);
mavlink_missionlib_send_message(&msg);
_wpm->timestamp_last_send_request = hrt_absolute_time();
if (_verbose) { warnx("Sent waypoint request %u to ID %u", wpr.seq, wpr.target_system); }
@@ -1101,6 +1119,10 @@ void Mavlink::mavlink_waypoint_eventloop(uint64_t now)
_wpm->current_state = MAVLINK_WPM_STATE_IDLE;
_wpm->current_partner_sysid = 0;
_wpm->current_partner_compid = 0;
} else if (now - _wpm->timestamp_last_send_request > 500000 && _wpm->current_state == MAVLINK_WPM_STATE_GETLIST_GETWPS) {
/* try to get WP again after short timeout */
mavlink_wpm_send_waypoint_request(_wpm->current_partner_sysid, _wpm->current_partner_compid, _wpm->current_wp_id);
}
}
@@ -1163,11 +1185,6 @@ void Mavlink::mavlink_wpm_message_handler(const mavlink_message_t *msg)
if (_verbose) { warnx("IGN WP CURR CMD: Busy"); }
}
} else {
mavlink_missionlib_send_gcs_string("REJ. WP CMD: target id mismatch");
if (_verbose) { warnx("REJ. WP CMD: target id mismatch"); }
}
break;
@@ -1200,11 +1217,6 @@ void Mavlink::mavlink_wpm_message_handler(const mavlink_message_t *msg)
if (_verbose) { warnx("IGN REQUEST LIST: Busy"); }
}
} else {
mavlink_missionlib_send_gcs_string("REJ. REQUEST LIST: target id mismatch");
if (_verbose) { warnx("REJ. REQUEST LIST: target id mismatch"); }
}
break;
@@ -1293,12 +1305,6 @@ void Mavlink::mavlink_wpm_message_handler(const mavlink_message_t *msg)
mavlink_missionlib_send_gcs_string("REJ. WP CMD: Busy");
if (_verbose) { warnx("Ignored MAVLINK_MSG_ID_MISSION_ITEM_REQUEST from ID %u because i'm already talking to ID %u.", msg->sysid, _wpm->current_partner_sysid); }
} else {
mavlink_missionlib_send_gcs_string("REJ. WP CMD: target id mismatch");
if (_verbose) { warnx("IGNORED WAYPOINT COMMAND BECAUSE TARGET SYSTEM AND COMPONENT OR COMM PARTNER ID MISMATCH"); }
}
}
@@ -1357,12 +1363,6 @@ void Mavlink::mavlink_wpm_message_handler(const mavlink_message_t *msg)
if (_verbose) { warnx("IGN MISSION_COUNT CMD: Busy"); }
}
} else {
mavlink_missionlib_send_gcs_string("REJ. WP COUNT CMD: target id mismatch");
if (_verbose) { warnx("IGNORED WAYPOINT COUNT COMMAND BECAUSE TARGET SYSTEM AND COMPONENT OR COMM PARTNER ID MISMATCH"); }
}
}
break;
@@ -1430,6 +1430,7 @@ void Mavlink::mavlink_wpm_message_handler(const mavlink_message_t *msg)
if (dm_write(dm_next, wp.seq, DM_PERSIST_IN_FLIGHT_RESET, &mission_item, len) != len) {
mavlink_wpm_send_waypoint_ack(_wpm->current_partner_sysid, _wpm->current_partner_compid, MAV_MISSION_ERROR);
mavlink_missionlib_send_gcs_string("#audio: Unable to write on micro SD");
_wpm->current_state = MAVLINK_WPM_STATE_IDLE;
break;
}
@@ -1461,11 +1462,6 @@ void Mavlink::mavlink_wpm_message_handler(const mavlink_message_t *msg)
} else {
mavlink_wpm_send_waypoint_request(_wpm->current_partner_sysid, _wpm->current_partner_compid, _wpm->current_wp_id);
}
} else {
mavlink_missionlib_send_gcs_string("REJ. WP CMD: target id mismatch");
if (_verbose) { warnx("IGNORED WAYPOINT COMMAND BECAUSE TARGET SYSTEM AND COMPONENT OR COMM PARTNER ID MISMATCH"); }
}
break;
@@ -1501,13 +1497,6 @@ void Mavlink::mavlink_wpm_message_handler(const mavlink_message_t *msg)
if (_verbose) { warnx("IGN WP CLEAR CMD: Busy"); }
}
} else if (wpca.target_system == mavlink_system.sysid /*&& wpca.target_component == mavlink_wpm_comp_id */ && _wpm->current_state != MAVLINK_WPM_STATE_IDLE) {
mavlink_missionlib_send_gcs_string("REJ. WP CLERR CMD: target id mismatch");
if (_verbose) { warnx("IGNORED WAYPOINT CLEAR COMMAND BECAUSE TARGET SYSTEM AND COMPONENT OR COMM PARTNER ID MISMATCH"); }
}
break;
@@ -1523,6 +1512,8 @@ void Mavlink::mavlink_wpm_message_handler(const mavlink_message_t *msg)
void
Mavlink::mavlink_missionlib_send_message(mavlink_message_t *msg)
{
uint8_t missionlib_msg_buf[MAVLINK_MAX_PACKET_LEN];
uint16_t len = mavlink_msg_to_send_buffer(missionlib_msg_buf, msg);
mavlink_send_uart_bytes(_channel, missionlib_msg_buf, len);
@@ -1535,6 +1526,8 @@ Mavlink::mavlink_missionlib_send_gcs_string(const char *string)
{
const int len = MAVLINK_MSG_STATUSTEXT_FIELD_TEXT_LEN;
mavlink_statustext_t statustext;
statustext.severity = MAV_SEVERITY_INFO;
int i = 0;
while (i < len - 1) {
@@ -2017,14 +2010,14 @@ Mavlink::task_main(int argc, char *argv[])
if (_subscribe_to_stream != nullptr) {
if (OK == configure_stream(_subscribe_to_stream, _subscribe_to_stream_rate)) {
if (_subscribe_to_stream_rate > 0.0f) {
warnx("stream %s on device %s enabled with rate %.1f Hz", _subscribe_to_stream, _device_name, _subscribe_to_stream_rate);
warnx("stream %s on device %s enabled with rate %.1f Hz", _subscribe_to_stream, _device_name, (double)_subscribe_to_stream_rate);
} else {
warnx("stream %s on device %s disabled", _subscribe_to_stream, _device_name);
}
} else {
warnx("stream %s not found", _subscribe_to_stream, _device_name);
warnx("stream %s on device %s not found", _subscribe_to_stream, _device_name);
}
delete _subscribe_to_stream;
@@ -2191,7 +2184,7 @@ Mavlink::start(int argc, char *argv[])
task_spawn_cmd(buf,
SCHED_DEFAULT,
SCHED_PRIORITY_DEFAULT,
2048,
1950,
(main_t)&Mavlink::start_helper,
(const char **)argv);
@@ -2230,7 +2223,6 @@ Mavlink::stream(int argc, char *argv[])
const char *device_name = DEFAULT_DEVICE_NAME;
float rate = -1.0f;
const char *stream_name = nullptr;
int ch;
argc -= 2;
argv += 2;
@@ -2267,7 +2259,7 @@ Mavlink::stream(int argc, char *argv[])
i++;
}
if (!err_flag && rate >= 0.0 && stream_name != nullptr) {
if (!err_flag && rate >= 0.0f && stream_name != nullptr) {
Mavlink *inst = get_instance_for_device(device_name);
if (inst != nullptr) {
src/modules/mavlink/mavlink_main.h
+2 -4
View File
@@ -93,6 +93,7 @@ struct mavlink_wpm_storage {
uint8_t current_partner_compid;
uint64_t timestamp_lastaction;
uint64_t timestamp_last_send_setpoint;
uint64_t timestamp_last_send_request;
uint32_t timeout;
int current_dataman_id;
};
@@ -221,8 +222,6 @@ private:
int _mavlink_fd;
bool _task_running;
perf_counter_t _loop_perf; /**< loop performance counter */
/* states */
bool _hil_enabled; /**< Hardware In the Loop mode */
bool _use_hil_gps; /**< Accept GPS HIL messages (for example from an external motion capturing system to fake indoor gps) */
@@ -237,7 +236,6 @@ private:
orb_advert_t _mission_pub;
struct mission_s mission;
uint8_t missionlib_msg_buf[MAVLINK_MAX_PACKET_LEN];
MAVLINK_MODE _mode;
uint8_t _mavlink_wpm_comp_id;
@@ -283,7 +281,7 @@ private:
pthread_mutex_t _message_buffer_mutex;
perf_counter_t _loop_perf; /**< loop performance counter */
/**
* Send one parameter.
src/modules/mavlink/mavlink_messages.cpp
+27 -22
View File
@@ -124,18 +124,22 @@ void get_mavlink_mode_state(struct vehicle_status_s *status, struct position_set
*mavlink_base_mode |= MAV_MODE_FLAG_MANUAL_INPUT_ENABLED | (status->is_rotary_wing ? MAV_MODE_FLAG_STABILIZE_ENABLED : 0);
custom_mode.main_mode = PX4_CUSTOM_MAIN_MODE_MANUAL;
} else if (status->main_state == MAIN_STATE_SEATBELT) {
} else if (status->main_state == MAIN_STATE_ALTCTL) {
*mavlink_base_mode |= MAV_MODE_FLAG_MANUAL_INPUT_ENABLED | MAV_MODE_FLAG_STABILIZE_ENABLED;
custom_mode.main_mode = PX4_CUSTOM_MAIN_MODE_SEATBELT;
custom_mode.main_mode = PX4_CUSTOM_MAIN_MODE_ALTCTL;
} else if (status->main_state == MAIN_STATE_EASY) {
} else if (status->main_state == MAIN_STATE_POSCTL) {
*mavlink_base_mode |= MAV_MODE_FLAG_MANUAL_INPUT_ENABLED | MAV_MODE_FLAG_STABILIZE_ENABLED | MAV_MODE_FLAG_GUIDED_ENABLED;
custom_mode.main_mode = PX4_CUSTOM_MAIN_MODE_EASY;
custom_mode.main_mode = PX4_CUSTOM_MAIN_MODE_POSCTL;
} else if (status->main_state == MAIN_STATE_AUTO) {
*mavlink_base_mode |= MAV_MODE_FLAG_AUTO_ENABLED | MAV_MODE_FLAG_STABILIZE_ENABLED | MAV_MODE_FLAG_GUIDED_ENABLED;
custom_mode.main_mode = PX4_CUSTOM_MAIN_MODE_AUTO;
custom_mode.sub_mode = PX4_CUSTOM_SUB_MODE_AUTO_READY;
} else if (status->main_state == MAIN_STATE_ACRO) {
*mavlink_base_mode |= MAV_MODE_FLAG_MANUAL_INPUT_ENABLED;
custom_mode.main_mode = PX4_CUSTOM_MAIN_MODE_ACRO;
}
} else {
@@ -270,7 +274,7 @@ protected:
status->onboard_control_sensors_health,
status->load * 1000.0f,
status->battery_voltage * 1000.0f,
status->battery_current * 1000.0f,
status->battery_current * 100.0f,
status->battery_remaining * 100.0f,
status->drop_rate_comm,
status->errors_comm,
@@ -1138,10 +1142,10 @@ protected:
if (manual_sub->update(t)) {
mavlink_msg_manual_control_send(_channel,
mavlink_system.sysid,
manual->roll * 1000,
manual->pitch * 1000,
manual->yaw * 1000,
manual->throttle * 1000,
manual->x * 1000,
manual->y * 1000,
manual->z * 1000,
manual->r * 1000,
0);
}
}
@@ -1339,22 +1343,23 @@ protected:
void send(const hrt_abstime t)
{
(void)range_sub->update(t);
if (range_sub->update(t)) {
uint8_t type;
uint8_t type;
switch (range->type) {
case RANGE_FINDER_TYPE_LASER:
type = MAV_DISTANCE_SENSOR_LASER;
break;
switch (range->type) {
case RANGE_FINDER_TYPE_LASER:
type = MAV_DISTANCE_SENSOR_LASER;
break;
}
uint8_t id = 0;
uint8_t orientation = 0;
uint8_t covariance = 20;
mavlink_msg_distance_sensor_send(_channel, range->timestamp / 1000, type, id, orientation,
range->minimum_distance*100, range->maximum_distance*100, range->distance*100, covariance);
}
uint8_t id = 0;
uint8_t orientation = 0;
uint8_t covariance = 20;
mavlink_msg_distance_sensor_send(_channel, range->timestamp / 1000, type, id, orientation,
range->minimum_distance*100, range->maximum_distance*100, range->distance*100, covariance);
}
};
src/modules/mavlink/mavlink_orb_subscription.cpp
+1 -1
View File
@@ -63,7 +63,7 @@ MavlinkOrbSubscription::~MavlinkOrbSubscription()
free(_data);
}
const orb_id_t
orb_id_t
MavlinkOrbSubscription::get_topic()
{
return _topic;
src/modules/mavlink/mavlink_orb_subscription.h
+1 -1
View File
@@ -63,7 +63,7 @@ public:
*/
bool is_published();
void *get_data();
const orb_id_t get_topic();
orb_id_t get_topic();
private:
const orb_id_t _topic; /*< topic metadata */
src/modules/mavlink/mavlink_receiver.cpp
+14 -6
View File
@@ -198,7 +198,7 @@ MavlinkReceiver::handle_message(mavlink_message_t *msg)
}
}
/* If we've received a valid message, mark the flag indicating so.
This is used in the '-w' command-line flag. */
_mavlink->set_has_received_messages(true);
@@ -224,6 +224,12 @@ MavlinkReceiver::handle_message_command_long(mavlink_message_t *msg)
_mavlink->_task_should_exit = true;
} else {
if (msg->sysid == mavlink_system.sysid && msg->compid == mavlink_system.compid) {
warnx("ignoring CMD spoofed with same SYS/COMP ID");
return;
}
struct vehicle_command_s vcmd;
memset(&vcmd, 0, sizeof(vcmd));
@@ -439,10 +445,10 @@ MavlinkReceiver::handle_message_manual_control(mavlink_message_t *msg)
memset(&manual, 0, sizeof(manual));
manual.timestamp = hrt_absolute_time();
manual.pitch = man.x / 1000.0f;
manual.roll = man.y / 1000.0f;
manual.yaw = man.r / 1000.0f;
manual.throttle = man.z / 1000.0f;
manual.x = man.x / 1000.0f;
manual.y = man.y / 1000.0f;
manual.r = man.r / 1000.0f;
manual.z = man.z / 1000.0f;
if (_manual_pub < 0) {
_manual_pub = orb_advertise(ORB_ID(manual_control_setpoint), &manual);
@@ -933,6 +939,8 @@ void *MavlinkReceiver::start_helper(void *context)
rcv->receive_thread(NULL);
delete rcv;
return nullptr;
}
pthread_t
@@ -950,7 +958,7 @@ MavlinkReceiver::receive_start(Mavlink *parent)
param.sched_priority = SCHED_PRIORITY_MAX - 40;
(void)pthread_attr_setschedparam(&receiveloop_attr, &param);
pthread_attr_setstacksize(&receiveloop_attr, 3000);
pthread_attr_setstacksize(&receiveloop_attr, 2900);
pthread_t thread;
pthread_create(&thread, &receiveloop_attr, MavlinkReceiver::start_helper, (void *)parent);
src/modules/mavlink/mavlink_stream.cpp
+4
View File
@@ -81,5 +81,9 @@ MavlinkStream::update(const hrt_abstime t)
/* interval expired, send message */
send(t);
_last_sent = (t / _interval) * _interval;
return 0;
}
return -1;
}
src/modules/mavlink/mavlink_stream.h
+5 -1
View File
@@ -63,9 +63,13 @@ public:
MavlinkStream *next;
MavlinkStream();
~MavlinkStream();
virtual ~MavlinkStream();
void set_interval(const unsigned int interval);
void set_channel(mavlink_channel_t channel);
/**
* @return 0 if updated / sent, -1 if unchanged
*/
int update(const hrt_abstime t);
virtual MavlinkStream *new_instance() = 0;
virtual void subscribe(Mavlink *mavlink) = 0;
src/modules/mavlink/module.mk
+2
View File
@@ -49,3 +49,5 @@ SRCS += mavlink_main.cpp \
INCLUDE_DIRS += $(MAVLINK_SRC)/include/mavlink
MAXOPTIMIZATION = -Os
MODULE_STACKSIZE = 1024
src/modules/mc_att_control/mc_att_control_main.cpp
+82 -21
View File
@@ -1,9 +1,6 @@
/****************************************************************************
*
* Copyright (c) 2013, 2014 PX4 Development Team. All rights reserved.
* Author: @author Tobias Naegeli <naegelit@student.ethz.ch>
* @author Lorenz Meier <lm@inf.ethz.ch>
* @author Anton Babushkin <anton.babushkin@me.com>
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
@@ -35,9 +32,13 @@
****************************************************************************/
/**
* @file mc_att_control_main.c
* @file mc_att_control_main.cpp
* Multicopter attitude controller.
*
* @author Tobias Naegeli <naegelit@student.ethz.ch>
* @author Lorenz Meier <lm@inf.ethz.ch>
* @author Anton Babushkin <anton.babushkin@me.com>
*
* The controller has two loops: P loop for angular error and PD loop for angular rate error.
* Desired rotation calculated keeping in mind that yaw response is normally slower than roll/pitch.
* For small deviations controller rotates copter to have shortest path of thrust vector and independently rotates around yaw,
@@ -71,7 +72,7 @@
#include <systemlib/err.h>
#include <systemlib/perf_counter.h>
#include <systemlib/systemlib.h>
#include <mathlib/mathlib.h>
#include <lib/mathlib/mathlib.h>
#include <lib/geo/geo.h>
/**
@@ -156,10 +157,14 @@ private:
param_t yaw_rate_i;
param_t yaw_rate_d;
param_t yaw_ff;
param_t yaw_rate_max;
param_t man_roll_max;
param_t man_pitch_max;
param_t man_yaw_max;
param_t acro_roll_max;
param_t acro_pitch_max;
param_t acro_yaw_max;
} _params_handles; /**< handles for interesting parameters */
struct {
@@ -168,10 +173,12 @@ private:
math::Vector<3> rate_i; /**< I gain for angular rate error */
math::Vector<3> rate_d; /**< D gain for angular rate error */
float yaw_ff; /**< yaw control feed-forward */
float yaw_rate_max; /**< max yaw rate */
float man_roll_max;
float man_pitch_max;
float man_yaw_max;
math::Vector<3> acro_rate_max; /**< max attitude rates in acro mode */
} _params;
/**
@@ -225,9 +232,9 @@ private:
static void task_main_trampoline(int argc, char *argv[]);
/**
* Main sensor collection task.
* Main attitude control task.
*/
void task_main() __attribute__((noreturn));
void task_main();
};
namespace mc_att_control
@@ -276,6 +283,12 @@ MulticopterAttitudeControl::MulticopterAttitudeControl() :
_params.rate_p.zero();
_params.rate_i.zero();
_params.rate_d.zero();
_params.yaw_ff = 0.0f;
_params.yaw_rate_max = 0.0f;
_params.man_roll_max = 0.0f;
_params.man_pitch_max = 0.0f;
_params.man_yaw_max = 0.0f;
_params.acro_rate_max.zero();
_rates_prev.zero();
_rates_sp.zero();
@@ -298,10 +311,13 @@ MulticopterAttitudeControl::MulticopterAttitudeControl() :
_params_handles.yaw_rate_i = param_find("MC_YAWRATE_I");
_params_handles.yaw_rate_d = param_find("MC_YAWRATE_D");
_params_handles.yaw_ff = param_find("MC_YAW_FF");
_params_handles.yaw_rate_max = param_find("MC_YAWRATE_MAX");
_params_handles.man_roll_max = param_find("MC_MAN_R_MAX");
_params_handles.man_pitch_max = param_find("MC_MAN_P_MAX");
_params_handles.man_yaw_max = param_find("MC_MAN_Y_MAX");
_params_handles.acro_roll_max = param_find("MC_ACRO_R_MAX");
_params_handles.acro_pitch_max = param_find("MC_ACRO_P_MAX");
_params_handles.acro_yaw_max = param_find("MC_ACRO_Y_MAX");
/* fetch initial parameter values */
parameters_update();
@@ -367,15 +383,24 @@ MulticopterAttitudeControl::parameters_update()
_params.rate_d(2) = v;
param_get(_params_handles.yaw_ff, &_params.yaw_ff);
param_get(_params_handles.yaw_rate_max, &_params.yaw_rate_max);
_params.yaw_rate_max = math::radians(_params.yaw_rate_max);
/* manual control scale */
param_get(_params_handles.man_roll_max, &_params.man_roll_max);
param_get(_params_handles.man_pitch_max, &_params.man_pitch_max);
param_get(_params_handles.man_yaw_max, &_params.man_yaw_max);
_params.man_roll_max = math::radians(_params.man_roll_max);
_params.man_pitch_max = math::radians(_params.man_pitch_max);
_params.man_yaw_max = math::radians(_params.man_yaw_max);
_params.man_roll_max *= M_PI / 180.0;
_params.man_pitch_max *= M_PI / 180.0;
_params.man_yaw_max *= M_PI / 180.0;
/* acro control scale */
param_get(_params_handles.acro_roll_max, &v);
_params.acro_rate_max(0) = math::radians(v);
param_get(_params_handles.acro_pitch_max, &v);
_params.acro_rate_max(1) = math::radians(v);
param_get(_params_handles.acro_yaw_max, &v);
_params.acro_rate_max(2) = math::radians(v);
return OK;
}
@@ -478,7 +503,7 @@ MulticopterAttitudeControl::control_attitude(float dt)
if (!_v_control_mode.flag_control_climb_rate_enabled) {
/* pass throttle directly if not in altitude stabilized mode */
_v_att_sp.thrust = _manual_control_sp.throttle;
_v_att_sp.thrust = _manual_control_sp.z;
publish_att_sp = true;
}
@@ -496,8 +521,16 @@ MulticopterAttitudeControl::control_attitude(float dt)
//}
} else {
/* move yaw setpoint */
yaw_sp_move_rate = _manual_control_sp.yaw * _params.man_yaw_max;
yaw_sp_move_rate = _manual_control_sp.r * _params.man_yaw_max;
_v_att_sp.yaw_body = _wrap_pi(_v_att_sp.yaw_body + yaw_sp_move_rate * dt);
float yaw_offs_max = _params.man_yaw_max / _params.att_p(2);
float yaw_offs = _wrap_pi(_v_att_sp.yaw_body - _v_att.yaw);
if (yaw_offs < - yaw_offs_max) {
_v_att_sp.yaw_body = _wrap_pi(_v_att.yaw - yaw_offs_max);
} else if (yaw_offs > yaw_offs_max) {
_v_att_sp.yaw_body = _wrap_pi(_v_att.yaw + yaw_offs_max);
}
_v_att_sp.R_valid = false;
publish_att_sp = true;
}
@@ -512,8 +545,8 @@ MulticopterAttitudeControl::control_attitude(float dt)
if (!_v_control_mode.flag_control_velocity_enabled) {
/* update attitude setpoint if not in position control mode */
_v_att_sp.roll_body = _manual_control_sp.roll * _params.man_roll_max;
_v_att_sp.pitch_body = -_manual_control_sp.pitch * _params.man_pitch_max;
_v_att_sp.roll_body = _manual_control_sp.y * _params.man_roll_max;
_v_att_sp.pitch_body = -_manual_control_sp.x * _params.man_pitch_max;
_v_att_sp.R_valid = false;
publish_att_sp = true;
}
@@ -626,6 +659,9 @@ MulticopterAttitudeControl::control_attitude(float dt)
/* calculate angular rates setpoint */
_rates_sp = _params.att_p.emult(e_R);
/* limit yaw rate */
_rates_sp(2) = math::constrain(_rates_sp(2), -_params.yaw_rate_max, _params.yaw_rate_max);
/* feed forward yaw setpoint rate */
_rates_sp(2) += yaw_sp_move_rate * yaw_w * _params.yaw_ff;
}
@@ -762,11 +798,36 @@ MulticopterAttitudeControl::task_main()
} else {
/* attitude controller disabled, poll rates setpoint topic */
vehicle_rates_setpoint_poll();
_rates_sp(0) = _v_rates_sp.roll;
_rates_sp(1) = _v_rates_sp.pitch;
_rates_sp(2) = _v_rates_sp.yaw;
_thrust_sp = _v_rates_sp.thrust;
if (_v_control_mode.flag_control_manual_enabled) {
/* manual rates control - ACRO mode */
_rates_sp = math::Vector<3>(_manual_control_sp.y, -_manual_control_sp.x, _manual_control_sp.r).emult(_params.acro_rate_max);
_thrust_sp = _manual_control_sp.z;
/* reset yaw setpoint after ACRO */
_reset_yaw_sp = true;
/* publish attitude rates setpoint */
_v_rates_sp.roll = _rates_sp(0);
_v_rates_sp.pitch = _rates_sp(1);
_v_rates_sp.yaw = _rates_sp(2);
_v_rates_sp.thrust = _thrust_sp;
_v_rates_sp.timestamp = hrt_absolute_time();
if (_v_rates_sp_pub > 0) {
orb_publish(ORB_ID(vehicle_rates_setpoint), _v_rates_sp_pub, &_v_rates_sp);
} else {
_v_rates_sp_pub = orb_advertise(ORB_ID(vehicle_rates_setpoint), &_v_rates_sp);
}
} else {
/* attitude controller disabled, poll rates setpoint topic */
vehicle_rates_setpoint_poll();
_rates_sp(0) = _v_rates_sp.roll;
_rates_sp(1) = _v_rates_sp.pitch;
_rates_sp(2) = _v_rates_sp.yaw;
_thrust_sp = _v_rates_sp.thrust;
}
}
if (_v_control_mode.flag_control_rates_enabled) {
@@ -806,7 +867,7 @@ MulticopterAttitudeControl::start()
_control_task = task_spawn_cmd("mc_att_control",
SCHED_DEFAULT,
SCHED_PRIORITY_MAX - 5,
2048,
2000,
(main_t)&MulticopterAttitudeControl::task_main_trampoline,
nullptr);
src/modules/mc_att_control/mc_att_control_params.c
+45 -3
View File
@@ -1,9 +1,6 @@
/****************************************************************************
*
* Copyright (c) 2013, 2014 PX4 Development Team. All rights reserved.
* Author: @author Tobias Naegeli <naegelit@student.ethz.ch>
* @author Lorenz Meier <lm@inf.ethz.ch>
* @author Anton Babushkin <anton.babushkin@me.com>
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
@@ -37,6 +34,10 @@
/**
* @file mc_att_control_params.c
* Parameters for multicopter attitude controller.
*
* @author Tobias Naegeli <naegelit@student.ethz.ch>
* @author Lorenz Meier <lm@inf.ethz.ch>
* @author Anton Babushkin <anton.babushkin@me.com>
*/
#include <systemlib/param/param.h>
@@ -174,6 +175,18 @@ PARAM_DEFINE_FLOAT(MC_YAWRATE_D, 0.0f);
*/
PARAM_DEFINE_FLOAT(MC_YAW_FF, 0.5f);
/**
* Max yaw rate
*
* Limit for yaw rate, has effect for large rotations in autonomous mode, to avoid large control output and mixer saturation.
*
* @unit deg/s
* @min 0.0
* @max 360.0
* @group Multicopter Attitude Control
*/
PARAM_DEFINE_FLOAT(MC_YAWRATE_MAX, 120.0f);
/**
* Max manual roll
*
@@ -202,3 +215,32 @@ PARAM_DEFINE_FLOAT(MC_MAN_P_MAX, 35.0f);
* @group Multicopter Attitude Control
*/
PARAM_DEFINE_FLOAT(MC_MAN_Y_MAX, 120.0f);
/**
* Max acro roll rate
*
* @unit deg/s
* @min 0.0
* @max 360.0
* @group Multicopter Attitude Control
*/
PARAM_DEFINE_FLOAT(MC_ACRO_R_MAX, 90.0f);
/**
* Max acro pitch rate
*
* @unit deg/s
* @min 0.0
* @max 360.0
* @group Multicopter Attitude Control
*/
PARAM_DEFINE_FLOAT(MC_ACRO_P_MAX, 90.0f);
/**
* Max acro yaw rate
*
* @unit deg/s
* @min 0.0
* @group Multicopter Attitude Control
*/
PARAM_DEFINE_FLOAT(MC_ACRO_Y_MAX, 120.0f);
src/modules/mc_pos_control/mc_pos_control_main.cpp
+6 -6
View File
@@ -226,7 +226,7 @@ private:
/**
* Main sensor collection task.
*/
void task_main() __attribute__((noreturn));
void task_main();
};
namespace pos_control
@@ -617,7 +617,7 @@ MulticopterPositionControl::task_main()
reset_alt_sp();
/* move altitude setpoint with throttle stick */
sp_move_rate(2) = -scale_control(_manual.throttle - 0.5f, 0.5f, alt_ctl_dz);
sp_move_rate(2) = -scale_control(_manual.z - 0.5f, 0.5f, alt_ctl_dz);
}
if (_control_mode.flag_control_position_enabled) {
@@ -625,8 +625,8 @@ MulticopterPositionControl::task_main()
reset_pos_sp();
/* move position setpoint with roll/pitch stick */
sp_move_rate(0) = _manual.pitch;
sp_move_rate(1) = _manual.roll;
sp_move_rate(0) = _manual.x;
sp_move_rate(1) = _manual.y;
}
/* limit setpoint move rate */
@@ -782,7 +782,7 @@ MulticopterPositionControl::task_main()
float i = _params.thr_min;
if (reset_int_z_manual) {
i = _manual.throttle;
i = _manual.z;
if (i < _params.thr_min) {
i = _params.thr_min;
@@ -1062,7 +1062,7 @@ MulticopterPositionControl::start()
_control_task = task_spawn_cmd("mc_pos_control",
SCHED_DEFAULT,
SCHED_PRIORITY_MAX - 5,
2048,
2000,
(main_t)&MulticopterPositionControl::task_main_trampoline,
nullptr);
src/modules/mc_pos_control/mc_pos_control_params.c
+7 -5
View File
@@ -35,6 +35,8 @@
/**
* @file mc_pos_control_params.c
* Multicopter position controller parameters.
*
* @author Anton Babushkin <anton.babushkin@me.com>
*/
#include <systemlib/param/param.h>
@@ -98,7 +100,7 @@ PARAM_DEFINE_FLOAT(MPC_Z_VEL_D, 0.0f);
/**
* Maximum vertical velocity
*
* Maximum vertical velocity in AUTO mode and endpoint for stabilized modes (SEATBELT, EASY).
* Maximum vertical velocity in AUTO mode and endpoint for stabilized modes (ALTCTRL, POSCTRL).
*
* @unit m/s
* @min 0.0
@@ -109,7 +111,7 @@ PARAM_DEFINE_FLOAT(MPC_Z_VEL_MAX, 5.0f);
/**
* Vertical velocity feed forward
*
* Feed forward weight for altitude control in stabilized modes (SEATBELT, EASY). 0 will give slow responce and no overshot, 1 - fast responce and big overshot.
* Feed forward weight for altitude control in stabilized modes (ALTCTRL, POSCTRL). 0 will give slow responce and no overshot, 1 - fast responce and big overshot.
*
* @min 0.0
* @max 1.0
@@ -154,7 +156,7 @@ PARAM_DEFINE_FLOAT(MPC_XY_VEL_D, 0.01f);
/**
* Maximum horizontal velocity
*
* Maximum horizontal velocity in AUTO mode and endpoint for position stabilized mode (EASY).
* Maximum horizontal velocity in AUTO mode and endpoint for position stabilized mode (POSCTRL).
*
* @unit m/s
* @min 0.0
@@ -165,7 +167,7 @@ PARAM_DEFINE_FLOAT(MPC_XY_VEL_MAX, 5.0f);
/**
* Horizontal velocity feed forward
*
* Feed forward weight for position control in position control mode (EASY). 0 will give slow responce and no overshot, 1 - fast responce and big overshot.
* Feed forward weight for position control in position control mode (POSCTRL). 0 will give slow responce and no overshot, 1 - fast responce and big overshot.
*
* @min 0.0
* @max 1.0
@@ -176,7 +178,7 @@ PARAM_DEFINE_FLOAT(MPC_XY_FF, 0.5f);
/**
* Maximum tilt angle in air
*
* Limits maximum tilt in AUTO and EASY modes during flight.
* Limits maximum tilt in AUTO and POSCTRL modes during flight.
*
* @unit deg
* @min 0.0
src/modules/navigator/geofence.cpp
+3 -2
View File
@@ -1,8 +1,6 @@
/****************************************************************************
*
* Copyright (c) 2013 PX4 Development Team. All rights reserved.
* Author: @author Jean Cyr <jean.m.cyr@gmail.com>
* @author Thomas Gubler <thomasgubler@gmail.com>
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
@@ -35,6 +33,9 @@
/**
* @file geofence.cpp
* Provides functions for handling the geofence
*
* @author Jean Cyr <jean.m.cyr@gmail.com>
* @author Thomas Gubler <thomasgubler@gmail.com>
*/
#include "geofence.h"
src/modules/navigator/geofence.h
+3 -2
View File
@@ -1,8 +1,6 @@
/****************************************************************************
*
* Copyright (c) 2013 PX4 Development Team. All rights reserved.
* Author: @author Jean Cyr <jean.m.cyr@gmail.com>
* @author Thomas Gubler <thomasgubler@gmail.com>
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
@@ -35,6 +33,9 @@
/**
* @file geofence.h
* Provides functions for handling the geofence
*
* @author Jean Cyr <jean.m.cyr@gmail.com>
* @author Thomas Gubler <thomasgubler@gmail.com>
*/
#ifndef GEOFENCE_H_
src/modules/navigator/geofence_params.c
-1
View File
@@ -1,7 +1,6 @@
/****************************************************************************
*
* Copyright (c) 2013 PX4 Development Team. All rights reserved.
* Author: Lorenz Meier <lm@inf.ethz.ch>
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
src/modules/navigator/mission_feasibility_checker.cpp
+45 -14
View File
@@ -1,8 +1,6 @@
/****************************************************************************
*
* Copyright (c) 2013 PX4 Development Team. All rights reserved.
* Author: @author Lorenz Meier <lm@inf.ethz.ch>
* @author Thomas Gubler <thomasgubler@student.ethz.ch>
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
@@ -35,6 +33,9 @@
/**
* @file mission_feasibility_checker.cpp
* Provides checks if mission is feasible given the navigation capabilities
*
* @author Lorenz Meier <lm@inf.ethz.ch>
* @author Thomas Gubler <thomasgubler@student.ethz.ch>
*/
#include "mission_feasibility_checker.h"
@@ -62,7 +63,7 @@ MissionFeasibilityChecker::MissionFeasibilityChecker() : _mavlink_fd(-1), _capab
}
bool MissionFeasibilityChecker::checkMissionFeasible(bool isRotarywing, dm_item_t dm_current, size_t nMissionItems, Geofence &geofence)
bool MissionFeasibilityChecker::checkMissionFeasible(bool isRotarywing, dm_item_t dm_current, size_t nMissionItems, Geofence &geofence, float home_alt)
{
/* Init if not done yet */
init();
@@ -75,24 +76,24 @@ bool MissionFeasibilityChecker::checkMissionFeasible(bool isRotarywing, dm_item_
if (isRotarywing)
return checkMissionFeasibleRotarywing(dm_current, nMissionItems, geofence);
return checkMissionFeasibleRotarywing(dm_current, nMissionItems, geofence, home_alt);
else
return checkMissionFeasibleFixedwing(dm_current, nMissionItems, geofence);
return checkMissionFeasibleFixedwing(dm_current, nMissionItems, geofence, home_alt);
}
bool MissionFeasibilityChecker::checkMissionFeasibleRotarywing(dm_item_t dm_current, size_t nMissionItems, Geofence &geofence)
bool MissionFeasibilityChecker::checkMissionFeasibleRotarywing(dm_item_t dm_current, size_t nMissionItems, Geofence &geofence, float home_alt)
{
return checkGeofence(dm_current, nMissionItems, geofence);
return (checkGeofence(dm_current, nMissionItems, geofence) && checkHomePositionAltitude(dm_current, nMissionItems, home_alt));
}
bool MissionFeasibilityChecker::checkMissionFeasibleFixedwing(dm_item_t dm_current, size_t nMissionItems, Geofence &geofence)
bool MissionFeasibilityChecker::checkMissionFeasibleFixedwing(dm_item_t dm_current, size_t nMissionItems, Geofence &geofence, float home_alt)
{
/* Update fixed wing navigation capabilites */
updateNavigationCapabilities();
// warnx("_nav_caps.landing_slope_angle_rad %.4f, _nav_caps.landing_horizontal_slope_displacement %.4f", _nav_caps.landing_slope_angle_rad, _nav_caps.landing_horizontal_slope_displacement);
return (checkFixedWingLanding(dm_current, nMissionItems) && checkGeofence(dm_current, nMissionItems, geofence));
return (checkFixedWingLanding(dm_current, nMissionItems) && checkGeofence(dm_current, nMissionItems, geofence) && checkHomePositionAltitude(dm_current, nMissionItems, home_alt));
}
bool MissionFeasibilityChecker::checkGeofence(dm_item_t dm_current, size_t nMissionItems, Geofence &geofence)
@@ -100,15 +101,15 @@ bool MissionFeasibilityChecker::checkGeofence(dm_item_t dm_current, size_t nMiss
/* Check if all mission items are inside the geofence (if we have a valid geofence) */
if (geofence.valid()) {
for (size_t i = 0; i < nMissionItems; i++) {
static struct mission_item_s missionitem;
const ssize_t len = sizeof(struct mission_item_s);
struct mission_item_s missionitem;
const ssize_t len = sizeof(missionitem);
if (dm_read(dm_current, i, &missionitem, len) != len) {
/* not supposed to happen unless the datamanager can't access the SD card, etc. */
return false;
}
if (!geofence.inside(missionitem.lat, missionitem.lon, missionitem.altitude)) { //xxx: handle relative altitude
if (!geofence.inside(missionitem.lat, missionitem.lon, missionitem.altitude)) {
mavlink_log_info(_mavlink_fd, "#audio: Geofence violation waypoint %d", i);
return false;
}
@@ -118,6 +119,36 @@ bool MissionFeasibilityChecker::checkGeofence(dm_item_t dm_current, size_t nMiss
return true;
}
bool MissionFeasibilityChecker::checkHomePositionAltitude(dm_item_t dm_current, size_t nMissionItems, float home_alt, bool throw_error)
{
/* Check if all all waypoints are above the home altitude, only return false if bool throw_error = true */
for (size_t i = 0; i < nMissionItems; i++) {
static struct mission_item_s missionitem;
const ssize_t len = sizeof(struct mission_item_s);
if (dm_read(dm_current, i, &missionitem, len) != len) {
/* not supposed to happen unless the datamanager can't access the SD card, etc. */
if (throw_error) {
return false;
} else {
return true;
}
}
if (home_alt > missionitem.altitude) {
if (throw_error) {
mavlink_log_info(_mavlink_fd, "Waypoint %d below home", i);
return false;
} else {
mavlink_log_info(_mavlink_fd, "#audio: warning waypoint %d below home", i);
return true;
}
}
}
return true;
}
bool MissionFeasibilityChecker::checkFixedWingLanding(dm_item_t dm_current, size_t nMissionItems)
{
/* Go through all mission items and search for a landing waypoint
@@ -125,8 +156,8 @@ bool MissionFeasibilityChecker::checkFixedWingLanding(dm_item_t dm_current, size
for (size_t i = 0; i < nMissionItems; i++) {
static struct mission_item_s missionitem;
const ssize_t len = sizeof(struct mission_item_s);
struct mission_item_s missionitem;
const ssize_t len = sizeof(missionitem);
if (dm_read(dm_current, i, &missionitem, len) != len) {
/* not supposed to happen unless the datamanager can't access the SD card, etc. */
return false;
src/modules/navigator/mission_feasibility_checker.h
+8 -5
View File
@@ -1,8 +1,6 @@
/****************************************************************************
*
* Copyright (c) 2013 PX4 Development Team. All rights reserved.
* Author: @author Lorenz Meier <lm@inf.ethz.ch>
* @author Thomas Gubler <thomasgubler@student.ethz.ch>
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
@@ -35,7 +33,11 @@
/**
* @file mission_feasibility_checker.h
* Provides checks if mission is feasible given the navigation capabilities
*
* @author Lorenz Meier <lm@inf.ethz.ch>
* @author Thomas Gubler <thomasgubler@student.ethz.ch>
*/
#ifndef MISSION_FEASIBILITY_CHECKER_H_
#define MISSION_FEASIBILITY_CHECKER_H_
@@ -59,14 +61,15 @@ private:
/* Checks for all airframes */
bool checkGeofence(dm_item_t dm_current, size_t nMissionItems, Geofence &geofence);
bool checkHomePositionAltitude(dm_item_t dm_current, size_t nMissionItems, float home_alt, bool throw_error = false);
/* Checks specific to fixedwing airframes */
bool checkMissionFeasibleFixedwing(dm_item_t dm_current, size_t nMissionItems, Geofence &geofence);
bool checkMissionFeasibleFixedwing(dm_item_t dm_current, size_t nMissionItems, Geofence &geofence, float home_alt);
bool checkFixedWingLanding(dm_item_t dm_current, size_t nMissionItems);
void updateNavigationCapabilities();
/* Checks specific to rotarywing airframes */
bool checkMissionFeasibleRotarywing(dm_item_t dm_current, size_t nMissionItems, Geofence &geofence);
bool checkMissionFeasibleRotarywing(dm_item_t dm_current, size_t nMissionItems, Geofence &geofence, float home_alt);
public:
MissionFeasibilityChecker();
@@ -75,7 +78,7 @@ public:
/*
* Returns true if mission is feasible and false otherwise
*/
bool checkMissionFeasible(bool isRotarywing, dm_item_t dm_current, size_t nMissionItems, Geofence &geofence);
bool checkMissionFeasible(bool isRotarywing, dm_item_t dm_current, size_t nMissionItems, Geofence &geofence, float home_alt);
};
src/modules/navigator/module.mk
+2
View File
@@ -45,3 +45,5 @@ SRCS = navigator_main.cpp \
geofence_params.c
INCLUDE_DIRS += $(MAVLINK_SRC)/include/mavlink
MODULE_STACKSIZE = 1200
src/modules/navigator/navigator_main.cpp
+29 -27
View File
@@ -1,10 +1,6 @@
/****************************************************************************
*
* Copyright (c) 2013, 2014 PX4 Development Team. All rights reserved.
* Author: @author Lorenz Meier <lm@inf.ethz.ch>
* @author Jean Cyr <jean.m.cyr@gmail.com>
* @author Julian Oes <joes@student.ethz.ch>
* @author Anton Babushkin <anton.babushkin@me.com>
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
@@ -35,7 +31,7 @@
*
****************************************************************************/
/**
* @file navigator_main.c
* @file navigator_main.cpp
* Implementation of the main navigation state machine.
*
* Handles missions, geo fencing and failsafe navigation behavior.
@@ -523,7 +519,7 @@ Navigator::offboard_mission_update(bool isrotaryWing)
dm_current = DM_KEY_WAYPOINTS_OFFBOARD_1;
}
missionFeasiblityChecker.checkMissionFeasible(isrotaryWing, dm_current, (size_t)offboard_mission.count, _geofence);
missionFeasiblityChecker.checkMissionFeasible(isrotaryWing, dm_current, (size_t)offboard_mission.count, _geofence, _home_pos.alt);
_mission.set_offboard_dataman_id(offboard_mission.dataman_id);
@@ -852,7 +848,7 @@ Navigator::start()
_navigator_task = task_spawn_cmd("navigator",
SCHED_DEFAULT,
SCHED_PRIORITY_MAX - 5,
2048,
2000,
(main_t)&Navigator::task_main_trampoline,
nullptr);
@@ -1291,7 +1287,7 @@ Navigator::set_rtl_item()
_mission_item.yaw = NAN;
_mission_item.loiter_radius = _parameters.loiter_radius;
_mission_item.loiter_direction = 1;
_mission_item.nav_cmd = NAV_CMD_TAKEOFF;
_mission_item.nav_cmd = NAV_CMD_WAYPOINT;
_mission_item.acceptance_radius = _parameters.acceptance_radius;
_mission_item.time_inside = 0.0f;
_mission_item.pitch_min = 0.0f;
@@ -1351,7 +1347,7 @@ Navigator::set_rtl_item()
_mission_item.yaw = NAN;
_mission_item.loiter_radius = _parameters.loiter_radius;
_mission_item.loiter_direction = 1;
_mission_item.nav_cmd = NAV_CMD_WAYPOINT;
_mission_item.nav_cmd = NAV_CMD_LOITER_TIME_LIMIT;
_mission_item.acceptance_radius = _parameters.acceptance_radius;
_mission_item.time_inside = _parameters.rtl_land_delay < 0.0f ? 0.0f : _parameters.rtl_land_delay;
_mission_item.pitch_min = 0.0f;
@@ -1462,7 +1458,6 @@ Navigator::check_mission_item_reached()
/* XXX TODO count turns */
if ((_mission_item.nav_cmd == NAV_CMD_LOITER_TURN_COUNT ||
_mission_item.nav_cmd == NAV_CMD_LOITER_TIME_LIMIT ||
_mission_item.nav_cmd == NAV_CMD_LOITER_UNLIMITED) &&
_mission_item.loiter_radius > 0.01f) {
@@ -1481,27 +1476,27 @@ Navigator::check_mission_item_reached()
acceptance_radius = _parameters.acceptance_radius;
}
float dist = -1.0f;
float dist_xy = -1.0f;
float dist_z = -1.0f;
/* calculate AMSL altitude for this waypoint */
float wp_alt_amsl = _mission_item.altitude;
if (_mission_item.altitude_is_relative)
wp_alt_amsl += _home_pos.alt;
dist = get_distance_to_point_global_wgs84(_mission_item.lat, _mission_item.lon, wp_alt_amsl,
(double)_global_pos.lat, (double)_global_pos.lon, _global_pos.alt,
&dist_xy, &dist_z);
if (_do_takeoff) {
if (_global_pos.alt > wp_alt_amsl - acceptance_radius) {
/* require only altitude for takeoff */
/* require only altitude for takeoff */
if (_global_pos.alt > _pos_sp_triplet.current.alt - acceptance_radius) {
_waypoint_position_reached = true;
}
} else {
float dist = -1.0f;
float dist_xy = -1.0f;
float dist_z = -1.0f;
/* calculate AMSL altitude for this waypoint */
float wp_alt_amsl = _mission_item.altitude;
if (_mission_item.altitude_is_relative)
wp_alt_amsl += _home_pos.alt;
dist = get_distance_to_point_global_wgs84(_mission_item.lat, _mission_item.lon, wp_alt_amsl,
(double)_global_pos.lat, (double)_global_pos.lon, _global_pos.alt,
&dist_xy, &dist_z);
if (dist >= 0.0f && dist <= acceptance_radius) {
_waypoint_position_reached = true;
}
@@ -1571,7 +1566,14 @@ Navigator::on_mission_item_reached()
}
if (_mission.current_mission_available()) {
set_mission_item();
if (_mission_item.autocontinue) {
/* continue mission */
set_mission_item();
} else {
/* autocontinue disabled for this item */
request_loiter_or_ready();
}
} else {
/* if no more mission items available then finish mission */
src/modules/navigator/navigator_mission.cpp
+2 -1
View File
@@ -1,7 +1,6 @@
/****************************************************************************
*
* Copyright (c) 2013 PX4 Development Team. All rights reserved.
* Author: @author Julian Oes <joes@student.ethz.ch>
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
@@ -34,6 +33,8 @@
/**
* @file navigator_mission.cpp
* Helper class to access missions
*
* @author Julian Oes <joes@student.ethz.ch>
*/
#include <string.h>
src/modules/navigator/navigator_mission.h
+2 -1
View File
@@ -1,7 +1,6 @@
/****************************************************************************
*
* Copyright (c) 2013 PX4 Development Team. All rights reserved.
* Author: @author Julian Oes <joes@student.ethz.ch>
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
@@ -34,6 +33,8 @@
/**
* @file navigator_mission.h
* Helper class to access missions
*
* @author Julian Oes <joes@student.ethz.ch>
*/
#ifndef NAVIGATOR_MISSION_H
src/modules/navigator/navigator_params.c
-3
View File
@@ -1,9 +1,6 @@
/****************************************************************************
*
* Copyright (c) 2013 PX4 Development Team. All rights reserved.
* Author: @author Lorenz Meier <lm@inf.ethz.ch>
* @author Julian Oes <joes@student.ethz.ch>
* @author Anton Babushkin <anton.babushkin@me.com>
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
src/modules/navigator/navigator_state.h
+38 -4
View File
@@ -1,8 +1,42 @@
/*
* navigator_state.h
/****************************************************************************
*
* Created on: 27.01.2014
* Author: ton
* Copyright (c) 2013 PX4 Development Team. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
* 3. Neither the name PX4 nor the names of its contributors may be
* used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*
****************************************************************************/
/**
* @file navigator_state.h
*
* Navigator state
*
* @author Anton Babushkin <anton.babushkin@me.com>
*/
#ifndef NAVIGATOR_STATE_H_
src/modules/position_estimator/module.mk
-44
View File
@@ -1,44 +0,0 @@
############################################################################
#
# Copyright (c) 2012, 2013 PX4 Development Team. All rights reserved.
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions
# are met:
#
# 1. Redistributions of source code must retain the above copyright
# notice, this list of conditions and the following disclaimer.
# 2. Redistributions in binary form must reproduce the above copyright
# notice, this list of conditions and the following disclaimer in
# the documentation and/or other materials provided with the
# distribution.
# 3. Neither the name PX4 nor the names of its contributors may be
# used to endorse or promote products derived from this software
# without specific prior written permission.
#
# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
# FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
# COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
# INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
# BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
# OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
# AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
# ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
# POSSIBILITY OF SUCH DAMAGE.
#
############################################################################
#
# Makefile to build the position estimator
#
MODULE_COMMAND = position_estimator
# XXX this should be converted to a deamon, its a pretty bad example app
MODULE_PRIORITY = SCHED_PRIORITY_DEFAULT
MODULE_STACKSIZE = 4096
SRCS = position_estimator_main.c
src/modules/position_estimator/position_estimator_main.c
-423
View File
@@ -1,423 +0,0 @@
/****************************************************************************
*
* Copyright (C) 2008-2012 PX4 Development Team. All rights reserved.
* Author: Tobias Naegeli <naegelit@student.ethz.ch>
* Thomas Gubler <thomasgubler@student.ethz.ch>
* Julian Oes <joes@student.ethz.ch>
* Lorenz Meier <lm@inf.ethz.ch>
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
* 3. Neither the name PX4 nor the names of its contributors may be
* used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*
****************************************************************************/
/**
* @file position_estimator_main.c
* Model-identification based position estimator for multirotors
*/
#include <nuttx/config.h>
#include <unistd.h>
#include <stdlib.h>
#include <stdio.h>
#include <stdbool.h>
#include <fcntl.h>
#include <float.h>
#include <nuttx/sched.h>
#include <sys/prctl.h>
#include <termios.h>
#include <errno.h>
#include <limits.h>
#include <math.h>
#include <uORB/uORB.h>
#include <uORB/topics/vehicle_status.h>
#include <uORB/topics/vehicle_attitude.h>
#include <uORB/topics/vehicle_gps_position.h>
#include <uORB/topics/vehicle_global_position.h>
#include <uORB/topics/vehicle_local_position.h>
#include <poll.h>
#define N_STATES 6
#define ERROR_COVARIANCE_INIT 3
#define R_EARTH 6371000.0
#define PROJECTION_INITIALIZE_COUNTER_LIMIT 5000
#define REPROJECTION_COUNTER_LIMIT 125
__EXPORT int position_estimator_main(int argc, char *argv[]);
static uint16_t position_estimator_counter_position_information;
/* values for map projection */
static double phi_1;
static double sin_phi_1;
static double cos_phi_1;
static double lambda_0;
static double scale;
/**
* Initializes the map transformation.
*
* Initializes the transformation between the geographic coordinate system and the azimuthal equidistant plane
* @param lat in degrees (47.1234567°, not 471234567°)
* @param lon in degrees (8.1234567°, not 81234567°)
*/
static void map_projection_init(double lat_0, double lon_0) //lat_0, lon_0 are expected to be in correct format: -> 47.1234567 and not 471234567
{
/* notation and formulas according to: http://mathworld.wolfram.com/AzimuthalEquidistantProjection.html */
phi_1 = lat_0 / 180.0 * M_PI;
lambda_0 = lon_0 / 180.0 * M_PI;
sin_phi_1 = sin(phi_1);
cos_phi_1 = cos(phi_1);
/* calculate local scale by using the relation of true distance and the distance on plane */ //TODO: this is a quick solution, there are probably easier ways to determine the scale
/* 1) calculate true distance d on sphere to a point: http://www.movable-type.co.uk/scripts/latlong.html */
const double r_earth = 6371000;
double lat1 = phi_1;
double lon1 = lambda_0;
double lat2 = phi_1 + 0.5 / 180 * M_PI;
double lon2 = lambda_0 + 0.5 / 180 * M_PI;
double sin_lat_2 = sin(lat2);
double cos_lat_2 = cos(lat2);
double d = acos(sin(lat1) * sin_lat_2 + cos(lat1) * cos_lat_2 * cos(lon2 - lon1)) * r_earth;
/* 2) calculate distance rho on plane */
double k_bar = 0;
double c = acos(sin_phi_1 * sin_lat_2 + cos_phi_1 * cos_lat_2 * cos(lon2 - lambda_0));
if (0 != c)
k_bar = c / sin(c);
double x2 = k_bar * (cos_lat_2 * sin(lon2 - lambda_0)); //Projection of point 2 on plane
double y2 = k_bar * ((cos_phi_1 * sin_lat_2 - sin_phi_1 * cos_lat_2 * cos(lon2 - lambda_0)));
double rho = sqrt(pow(x2, 2) + pow(y2, 2));
scale = d / rho;
}
/**
* Transforms a point in the geographic coordinate system to the local azimuthal equidistant plane
* @param x north
* @param y east
* @param lat in degrees (47.1234567°, not 471234567°)
* @param lon in degrees (8.1234567°, not 81234567°)
*/
static void map_projection_project(double lat, double lon, float *x, float *y)
{
/* notation and formulas accoring to: http://mathworld.wolfram.com/AzimuthalEquidistantProjection.html */
double phi = lat / 180.0 * M_PI;
double lambda = lon / 180.0 * M_PI;
double sin_phi = sin(phi);
double cos_phi = cos(phi);
double k_bar = 0;
/* using small angle approximation (formula in comment is without aproximation) */
double c = acos(sin_phi_1 * sin_phi + cos_phi_1 * cos_phi * (1 - pow((lambda - lambda_0), 2) / 2)); //double c = acos( sin_phi_1 * sin_phi + cos_phi_1 * cos_phi * cos(lambda - lambda_0) );
if (0 != c)
k_bar = c / sin(c);
/* using small angle approximation (formula in comment is without aproximation) */
*y = k_bar * (cos_phi * (lambda - lambda_0)) * scale;//*y = k_bar * (cos_phi * sin(lambda - lambda_0)) * scale;
*x = k_bar * ((cos_phi_1 * sin_phi - sin_phi_1 * cos_phi * (1 - pow((lambda - lambda_0), 2) / 2))) * scale; // *x = k_bar * ((cos_phi_1 * sin_phi - sin_phi_1 * cos_phi * cos(lambda - lambda_0))) * scale;
// printf("%phi_1=%.10f, lambda_0 =%.10f\n", phi_1, lambda_0);
}
/**
* Transforms a point in the local azimuthal equidistant plane to the geographic coordinate system
*
* @param x north
* @param y east
* @param lat in degrees (47.1234567°, not 471234567°)
* @param lon in degrees (8.1234567°, not 81234567°)
*/
static void map_projection_reproject(float x, float y, double *lat, double *lon)
{
/* notation and formulas accoring to: http://mathworld.wolfram.com/AzimuthalEquidistantProjection.html */
double x_descaled = x / scale;
double y_descaled = y / scale;
double c = sqrt(pow(x_descaled, 2) + pow(y_descaled, 2));
double sin_c = sin(c);
double cos_c = cos(c);
double lat_sphere = 0;
if (c != 0)
lat_sphere = asin(cos_c * sin_phi_1 + (x_descaled * sin_c * cos_phi_1) / c);
else
lat_sphere = asin(cos_c * sin_phi_1);
// printf("lat_sphere = %.10f\n",lat_sphere);
double lon_sphere = 0;
if (phi_1 == M_PI / 2) {
//using small angle approximation (formula in comment is without aproximation)
lon_sphere = (lambda_0 - y_descaled / x_descaled); //lon_sphere = (lambda_0 + atan2(-y_descaled, x_descaled));
} else if (phi_1 == -M_PI / 2) {
//using small angle approximation (formula in comment is without aproximation)
lon_sphere = (lambda_0 + y_descaled / x_descaled); //lon_sphere = (lambda_0 + atan2(y_descaled, x_descaled));
} else {
lon_sphere = (lambda_0 + atan2(y_descaled * sin_c , c * cos_phi_1 * cos_c - x_descaled * sin_phi_1 * sin_c));
//using small angle approximation
// double denominator = (c * cos_phi_1 * cos_c - x_descaled * sin_phi_1 * sin_c);
// if(denominator != 0)
// {
// lon_sphere = (lambda_0 + (y_descaled * sin_c) / denominator);
// }
// else
// {
// ...
// }
}
// printf("lon_sphere = %.10f\n",lon_sphere);
*lat = lat_sphere * 180.0 / M_PI;
*lon = lon_sphere * 180.0 / M_PI;
}
/****************************************************************************
* main
****************************************************************************/
int position_estimator_main(int argc, char *argv[])
{
/* welcome user */
printf("[multirotor position_estimator] started\n");
/* initialize values */
static float u[2] = {0, 0};
static float z[3] = {0, 0, 0};
static float xapo[N_STATES] = {0, 0, 0, 0, 0, 0};
static float Papo[N_STATES * N_STATES] = {ERROR_COVARIANCE_INIT, 0, 0, 0, 0, 0,
ERROR_COVARIANCE_INIT, 0, 0, 0, 0, 0,
ERROR_COVARIANCE_INIT, 0, 0, 0, 0, 0,
ERROR_COVARIANCE_INIT, 0, 0, 0, 0, 0,
ERROR_COVARIANCE_INIT, 0, 0, 0, 0, 0,
ERROR_COVARIANCE_INIT, 0, 0, 0, 0, 0
};
static float xapo1[N_STATES];
static float Papo1[36];
static float gps_covariance[3] = {0.0f, 0.0f, 0.0f};
static uint16_t counter = 0;
position_estimator_counter_position_information = 0;
uint8_t predict_only = 1;
bool gps_valid = false;
bool new_initialization = true;
static double lat_current = 0.0d;//[°]] --> 47.0
static double lon_current = 0.0d; //[°]] -->8.5
float alt_current = 0.0f;
//TODO: handle flight without gps but with estimator
/* subscribe to vehicle status, attitude, gps */
struct vehicle_gps_position_s gps;
gps.fix_type = 0;
struct vehicle_status_s vstatus;
struct vehicle_attitude_s att;
int vehicle_gps_sub = orb_subscribe(ORB_ID(vehicle_gps_position));
int vehicle_status_sub = orb_subscribe(ORB_ID(vehicle_status));
/* subscribe to attitude at 100 Hz */
int vehicle_attitude_sub = orb_subscribe(ORB_ID(vehicle_attitude));
/* wait until gps signal turns valid, only then can we initialize the projection */
while (gps.fix_type < 3) {
struct pollfd fds[1] = { {.fd = vehicle_gps_sub, .events = POLLIN} };
/* wait for GPS updates, BUT READ VEHICLE STATUS (!)
* this choice is critical, since the vehicle status might not
* actually change, if this app is started after GPS lock was
* aquired.
*/
if (poll(fds, 1, 5000)) {
/* Wait for the GPS update to propagate (we have some time) */
usleep(5000);
/* Read wether the vehicle status changed */
orb_copy(ORB_ID(vehicle_gps_position), vehicle_gps_sub, &gps);
gps_valid = (gps.fix_type > 2);
}
}
/* get gps value for first initialization */
orb_copy(ORB_ID(vehicle_gps_position), vehicle_gps_sub, &gps);
lat_current = ((double)(gps.lat)) * 1e-7;
lon_current = ((double)(gps.lon)) * 1e-7;
alt_current = gps.alt * 1e-3;
/* initialize coordinates */
map_projection_init(lat_current, lon_current);
/* publish global position messages only after first GPS message */
struct vehicle_local_position_s local_pos = {
.x = 0,
.y = 0,
.z = 0
};
orb_advert_t local_pos_pub = orb_advertise(ORB_ID(vehicle_local_position), &local_pos);
printf("[multirotor position estimator] initialized projection with: lat: %.10f, lon:%.10f\n", lat_current, lon_current);
while (1) {
/*This runs at the rate of the sensors, if we have also a new gps update this is used in the position_estimator function */
struct pollfd fds[1] = { {.fd = vehicle_attitude_sub, .events = POLLIN} };
if (poll(fds, 1, 5000) <= 0) {
/* error / timeout */
} else {
orb_copy(ORB_ID(vehicle_attitude), vehicle_attitude_sub, &att);
/* got attitude, updating pos as well */
orb_copy(ORB_ID(vehicle_gps_position), vehicle_gps_sub, &gps);
orb_copy(ORB_ID(vehicle_status), vehicle_status_sub, &vstatus);
/*copy attitude */
u[0] = att.roll;
u[1] = att.pitch;
/* initialize map projection with the last estimate (not at full rate) */
if (gps.fix_type > 2) {
/* Project gps lat lon (Geographic coordinate system) to plane*/
map_projection_project(((double)(gps.lat)) * 1e-7, ((double)(gps.lon)) * 1e-7, &(z[0]), &(z[1]));
local_pos.x = z[0];
local_pos.y = z[1];
/* negative offset from initialization altitude */
local_pos.z = alt_current - (gps.alt) * 1e-3;
orb_publish(ORB_ID(vehicle_local_position), local_pos_pub, &local_pos);
}
// gps_covariance[0] = gps.eph; //TODO: needs scaling
// gps_covariance[1] = gps.eph;
// gps_covariance[2] = gps.epv;
// } else {
// /* we can not use the gps signal (it is of low quality) */
// predict_only = 1;
// }
// // predict_only = 0; //TODO: only for testing, removeme, XXX
// // z[0] = sinf(((float)counter)/180.0f*3.14159265f); //TODO: only for testing, removeme, XXX
// // usleep(100000); //TODO: only for testing, removeme, XXX
// /*Get new estimation (this is calculated in the plane) */
// //TODO: if new_initialization == true: use 0,0,0, else use xapo
// if (true == new_initialization) { //TODO,XXX: uncomment!
// xapo[0] = 0; //we have a new plane initialization. the current estimate is in the center of the plane
// xapo[2] = 0;
// xapo[4] = 0;
// position_estimator(u, z, xapo, Papo, gps_covariance, predict_only, xapo1, Papo1);
// } else {
// position_estimator(u, z, xapo, Papo, gps_covariance, predict_only, xapo1, Papo1);
// }
// /* Copy values from xapo1 to xapo */
// int i;
// for (i = 0; i < N_STATES; i++) {
// xapo[i] = xapo1[i];
// }
// if ((counter % REPROJECTION_COUNTER_LIMIT == 0) || (counter % (PROJECTION_INITIALIZE_COUNTER_LIMIT - 1) == 0)) {
// /* Reproject from plane to geographic coordinate system */
// // map_projection_reproject(xapo1[0], xapo1[2], map_scale, phi_1, lambda_0, &lat_current, &lon_current) //TODO,XXX: uncomment!
// map_projection_reproject(z[0], z[1], &lat_current, &lon_current); //do not use estimator for projection testing, removeme
// // //DEBUG
// // if(counter%500 == 0)
// // {
// // printf("phi_1: %.10f\n", phi_1);
// // printf("lambda_0: %.10f\n", lambda_0);
// // printf("lat_estimated: %.10f\n", lat_current);
// // printf("lon_estimated: %.10f\n", lon_current);
// // printf("z[0]=%.10f, z[1]=%.10f, z[2]=%f\n", z[0], z[1], z[2]);
// // fflush(stdout);
// //
// // }
// // if(!isnan(lat_current) && !isnan(lon_current))// && !isnan(xapo1[4]) && !isnan(xapo1[1]) && !isnan(xapo1[3]) && !isnan(xapo1[5]))
// // {
// /* send out */
// global_pos.lat = lat_current;
// global_pos.lon = lon_current;
// global_pos.alt = xapo1[4];
// global_pos.vx = xapo1[1];
// global_pos.vy = xapo1[3];
// global_pos.vz = xapo1[5];
/* publish current estimate */
// orb_publish(ORB_ID(vehicle_global_position), global_pos_pub, &global_pos);
// }
// else
// {
// printf("[position estimator] ERROR: nan values, lat_current=%.4f, lon_current=%.4f, z[0]=%.4f z[1]=%.4f\n", lat_current, lon_current, z[0], z[1]);
// fflush(stdout);
// }
// }
counter++;
}
}
return 0;
}
src/modules/position_estimator_inav/inertial_filter.c
+7 -8
View File
@@ -9,15 +9,18 @@
#include "inertial_filter.h"
void inertial_filter_predict(float dt, float x[3])
void inertial_filter_predict(float dt, float x[2], float acc)
{
if (isfinite(dt)) {
x[0] += x[1] * dt + x[2] * dt * dt / 2.0f;
x[1] += x[2] * dt;
if (!isfinite(acc)) {
acc = 0.0f;
}
x[0] += x[1] * dt + acc * dt * dt / 2.0f;
x[1] += acc * dt;
}
}
void inertial_filter_correct(float e, float dt, float x[3], int i, float w)
void inertial_filter_correct(float e, float dt, float x[2], int i, float w)
{
if (isfinite(e) && isfinite(w) && isfinite(dt)) {
float ewdt = e * w * dt;
@@ -25,10 +28,6 @@ void inertial_filter_correct(float e, float dt, float x[3], int i, float w)
if (i == 0) {
x[1] += w * ewdt;
x[2] += w * w * ewdt / 3.0;
} else if (i == 1) {
x[2] += w * ewdt;
}
}
}
src/modules/position_estimator_inav/inertial_filter.h
+1 -1
View File
@@ -8,6 +8,6 @@
#include <stdbool.h>
#include <drivers/drv_hrt.h>
void inertial_filter_predict(float dt, float x[3]);
void inertial_filter_predict(float dt, float x[3], float acc);
void inertial_filter_correct(float e, float dt, float x[3], int i, float w);
src/modules/position_estimator_inav/module.mk
+2
View File
@@ -39,3 +39,5 @@ MODULE_COMMAND = position_estimator_inav
SRCS = position_estimator_inav_main.c \
position_estimator_inav_params.c \
inertial_filter.c
MODULE_STACKSIZE = 1200
src/modules/position_estimator_inav/position_estimator_inav_main.c
+140 -59
View File
@@ -71,19 +71,20 @@
#include "inertial_filter.h"
#define MIN_VALID_W 0.00001f
#define PUB_INTERVAL 10000 // limit publish rate to 100 Hz
#define EST_BUF_SIZE 250000 / PUB_INTERVAL // buffer size is 0.5s
static bool thread_should_exit = false; /**< Deamon exit flag */
static bool thread_running = false; /**< Deamon status flag */
static int position_estimator_inav_task; /**< Handle of deamon task / thread */
static bool verbose_mode = false;
static const hrt_abstime gps_topic_timeout = 1000000; // GPS topic timeout = 1s
static const hrt_abstime gps_topic_timeout = 500000; // GPS topic timeout = 0.5s
static const hrt_abstime flow_topic_timeout = 1000000; // optical flow topic timeout = 1s
static const hrt_abstime sonar_timeout = 150000; // sonar timeout = 150ms
static const hrt_abstime sonar_valid_timeout = 1000000; // estimate sonar distance during this time after sonar loss
static const hrt_abstime xy_src_timeout = 2000000; // estimate position during this time after position sources loss
static const uint32_t updates_counter_len = 1000000;
static const uint32_t pub_interval = 10000; // limit publish rate to 100 Hz
static const float max_flow = 1.0f; // max flow value that can be used, rad/s
__EXPORT int position_estimator_inav_main(int argc, char *argv[]);
@@ -92,6 +93,16 @@ int position_estimator_inav_thread_main(int argc, char *argv[]);
static void usage(const char *reason);
static inline int min(int val1, int val2)
{
return (val1 < val2) ? val1 : val2;
}
static inline int max(int val1, int val2)
{
return (val1 > val2) ? val1 : val2;
}
/**
* Print the correct usage.
*/
@@ -135,7 +146,7 @@ int position_estimator_inav_main(int argc, char *argv[])
thread_should_exit = false;
position_estimator_inav_task = task_spawn_cmd("position_estimator_inav",
SCHED_RR, SCHED_PRIORITY_MAX - 5, 4096,
SCHED_DEFAULT, SCHED_PRIORITY_MAX - 5, 5000,
position_estimator_inav_thread_main,
(argv) ? (const char **) &argv[2] : (const char **) NULL);
exit(0);
@@ -168,15 +179,15 @@ int position_estimator_inav_main(int argc, char *argv[])
exit(1);
}
void write_debug_log(const char *msg, float dt, float x_est[3], float y_est[3], float z_est[3], float x_est_prev[3], float y_est_prev[3], float z_est_prev[3], float corr_acc[3], float corr_gps[3][2], float w_xy_gps_p, float w_xy_gps_v)
void write_debug_log(const char *msg, float dt, float x_est[2], float y_est[2], float z_est[2], float x_est_prev[2], float y_est_prev[2], float z_est_prev[2], float acc[3], float corr_gps[3][2], float w_xy_gps_p, float w_xy_gps_v)
{
FILE *f = fopen("/fs/microsd/inav.log", "a");
if (f) {
char *s = malloc(256);
unsigned n = snprintf(s, 256, "%llu %s\n\tdt=%.5f x_est=[%.5f %.5f %.5f] y_est=[%.5f %.5f %.5f] z_est=[%.5f %.5f %.5f] x_est_prev=[%.5f %.5f %.5f] y_est_prev=[%.5f %.5f %.5f] z_est_prev=[%.5f %.5f %.5f]\n", hrt_absolute_time(), msg, dt, x_est[0], x_est[1], x_est[2], y_est[0], y_est[1], y_est[2], z_est[0], z_est[1], z_est[2], x_est_prev[0], x_est_prev[1], x_est_prev[2], y_est_prev[0], y_est_prev[1], y_est_prev[2], z_est_prev[0], z_est_prev[1], z_est_prev[2]);
unsigned n = snprintf(s, 256, "%llu %s\n\tdt=%.5f x_est=[%.5f %.5f] y_est=[%.5f %.5f] z_est=[%.5f %.5f] x_est_prev=[%.5f %.5f] y_est_prev=[%.5f %.5f] z_est_prev=[%.5f %.5f]\n", hrt_absolute_time(), msg, dt, x_est[0], x_est[1], y_est[0], y_est[1], z_est[0], z_est[1], x_est_prev[0], x_est_prev[1], y_est_prev[0], y_est_prev[1], z_est_prev[0], z_est_prev[1]);
fwrite(s, 1, n, f);
n = snprintf(s, 256, "\tacc_corr=[%.5f %.5f %.5f] gps_pos_corr=[%.5f %.5f %.5f] gps_vel_corr=[%.5f %.5f %.5f] w_xy_gps_p=%.5f w_xy_gps_v=%.5f\n", corr_acc[0], corr_acc[1], corr_acc[2], corr_gps[0][0], corr_gps[1][0], corr_gps[2][0], corr_gps[0][1], corr_gps[1][1], corr_gps[2][1], w_xy_gps_p, w_xy_gps_v);
n = snprintf(s, 256, "\tacc=[%.5f %.5f %.5f] gps_pos_corr=[%.5f %.5f %.5f] gps_vel_corr=[%.5f %.5f %.5f] w_xy_gps_p=%.5f w_xy_gps_v=%.5f\n", acc[0], acc[1], acc[2], corr_gps[0][0], corr_gps[1][0], corr_gps[2][0], corr_gps[0][1], corr_gps[1][1], corr_gps[2][1], w_xy_gps_p, w_xy_gps_v);
fwrite(s, 1, n, f);
free(s);
}
@@ -195,11 +206,27 @@ int position_estimator_inav_thread_main(int argc, char *argv[])
mavlink_fd = open(MAVLINK_LOG_DEVICE, 0);
mavlink_log_info(mavlink_fd, "[inav] started");
float x_est[3] = { 0.0f, 0.0f, 0.0f };
float y_est[3] = { 0.0f, 0.0f, 0.0f };
float z_est[3] = { 0.0f, 0.0f, 0.0f };
float x_est[2] = { 0.0f, 0.0f }; // pos, vel
float y_est[2] = { 0.0f, 0.0f }; // pos, vel
float z_est[2] = { 0.0f, 0.0f }; // pos, vel
float x_est_prev[3], y_est_prev[3], z_est_prev[3];
float est_buf[EST_BUF_SIZE][3][2]; // estimated position buffer
float R_buf[EST_BUF_SIZE][3][3]; // rotation matrix buffer
float R_gps[3][3]; // rotation matrix for GPS correction moment
memset(est_buf, 0, sizeof(est_buf));
memset(R_buf, 0, sizeof(R_buf));
memset(R_gps, 0, sizeof(R_gps));
int buf_ptr = 0;
static const float min_eph_epv = 2.0f; // min EPH/EPV, used for weight calculation
static const float max_eph_epv = 20.0f; // max EPH/EPV acceptable for estimation
float eph = max_eph_epv;
float epv = 1.0f;
float eph_flow = 1.0f;
float x_est_prev[2], y_est_prev[2], z_est_prev[2];
memset(x_est_prev, 0, sizeof(x_est_prev));
memset(y_est_prev, 0, sizeof(y_est_prev));
memset(z_est_prev, 0, sizeof(z_est_prev));
@@ -238,7 +265,7 @@ int position_estimator_inav_thread_main(int argc, char *argv[])
float accel_NED[3] = { 0.0f, 0.0f, -CONSTANTS_ONE_G };
/* store error when sensor updates, but correct on each time step to avoid jumps in estimated value */
float corr_acc[] = { 0.0f, 0.0f, 0.0f }; // N E D
float acc[] = { 0.0f, 0.0f, 0.0f }; // N E D
float acc_bias[] = { 0.0f, 0.0f, 0.0f }; // body frame
float corr_baro = 0.0f; // D
float corr_gps[3][2] = {
@@ -254,9 +281,6 @@ int position_estimator_inav_thread_main(int argc, char *argv[])
float corr_flow[] = { 0.0f, 0.0f }; // N E
float w_flow = 0.0f;
static float min_eph_epv = 2.0f; // min EPH/EPV, used for weight calculation
static float max_eph_epv = 10.0f; // max EPH/EPV acceptable for estimation
float sonar_prev = 0.0f;
hrt_abstime flow_prev = 0; // time of last flow measurement
hrt_abstime sonar_time = 0; // time of last sonar measurement (not filtered)
@@ -338,8 +362,10 @@ int position_estimator_inav_thread_main(int argc, char *argv[])
/* mean calculation over several measurements */
if (baro_init_cnt < baro_init_num) {
baro_offset += sensor.baro_alt_meter;
baro_init_cnt++;
if (isfinite(sensor.baro_alt_meter)) {
baro_offset += sensor.baro_alt_meter;
baro_init_cnt++;
}
} else {
wait_baro = false;
@@ -415,19 +441,17 @@ int position_estimator_inav_thread_main(int argc, char *argv[])
/* transform acceleration vector from body frame to NED frame */
for (int i = 0; i < 3; i++) {
accel_NED[i] = 0.0f;
acc[i] = 0.0f;
for (int j = 0; j < 3; j++) {
accel_NED[i] += att.R[i][j] * sensor.accelerometer_m_s2[j];
acc[i] += att.R[i][j] * sensor.accelerometer_m_s2[j];
}
}
corr_acc[0] = accel_NED[0] - x_est[2];
corr_acc[1] = accel_NED[1] - y_est[2];
corr_acc[2] = accel_NED[2] + CONSTANTS_ONE_G - z_est[2];
acc[2] += CONSTANTS_ONE_G;
} else {
memset(corr_acc, 0, sizeof(corr_acc));
memset(acc, 0, sizeof(acc));
}
accel_timestamp = sensor.accelerometer_timestamp;
@@ -533,6 +557,9 @@ int position_estimator_inav_thread_main(int argc, char *argv[])
w_flow *= 0.05f;
}
/* under ideal conditions, on 1m distance assume EPH = 10cm */
eph_flow = 0.1 / w_flow;
flow_valid = true;
} else {
@@ -592,13 +619,13 @@ int position_estimator_inav_thread_main(int argc, char *argv[])
/* hysteresis for GPS quality */
if (gps_valid) {
if (gps.eph_m > max_eph_epv * 1.5f || gps.epv_m > max_eph_epv * 1.5f || gps.fix_type < 3) {
if (gps.eph_m > max_eph_epv || gps.epv_m > max_eph_epv || gps.fix_type < 3) {
gps_valid = false;
mavlink_log_info(mavlink_fd, "[inav] GPS signal lost");
}
} else {
if (gps.eph_m < max_eph_epv && gps.epv_m < max_eph_epv && gps.fix_type >= 3) {
if (gps.eph_m < max_eph_epv * 0.7f && gps.epv_m < max_eph_epv * 0.7f && gps.fix_type >= 3) {
gps_valid = true;
reset_est = true;
mavlink_log_info(mavlink_fd, "[inav] GPS signal found");
@@ -623,11 +650,9 @@ int position_estimator_inav_thread_main(int argc, char *argv[])
/* set position estimate to (0, 0, 0), use GPS velocity for XY */
x_est[0] = 0.0f;
x_est[1] = gps.vel_n_m_s;
x_est[2] = accel_NED[0];
y_est[0] = 0.0f;
y_est[1] = gps.vel_e_m_s;
z_est[0] = 0.0f;
y_est[2] = accel_NED[1];
local_pos.ref_lat = lat;
local_pos.ref_lon = lon;
@@ -650,22 +675,26 @@ int position_estimator_inav_thread_main(int argc, char *argv[])
if (reset_est) {
x_est[0] = gps_proj[0];
x_est[1] = gps.vel_n_m_s;
x_est[2] = accel_NED[0];
y_est[0] = gps_proj[1];
y_est[1] = gps.vel_e_m_s;
y_est[2] = accel_NED[1];
}
/* calculate index of estimated values in buffer */
int est_i = buf_ptr - 1 - min(EST_BUF_SIZE - 1, max(0, (int)(params.delay_gps * 1000000.0f / PUB_INTERVAL)));
if (est_i < 0) {
est_i += EST_BUF_SIZE;
}
/* calculate correction for position */
corr_gps[0][0] = gps_proj[0] - x_est[0];
corr_gps[1][0] = gps_proj[1] - y_est[0];
corr_gps[2][0] = local_pos.ref_alt - alt - z_est[0];
corr_gps[0][0] = gps_proj[0] - est_buf[est_i][0][0];
corr_gps[1][0] = gps_proj[1] - est_buf[est_i][1][0];
corr_gps[2][0] = local_pos.ref_alt - alt - est_buf[est_i][2][0];
/* calculate correction for velocity */
if (gps.vel_ned_valid) {
corr_gps[0][1] = gps.vel_n_m_s - x_est[1];
corr_gps[1][1] = gps.vel_e_m_s - y_est[1];
corr_gps[2][1] = gps.vel_d_m_s - z_est[1];
corr_gps[0][1] = gps.vel_n_m_s - est_buf[est_i][0][1];
corr_gps[1][1] = gps.vel_e_m_s - est_buf[est_i][1][1];
corr_gps[2][1] = gps.vel_d_m_s - est_buf[est_i][2][1];
} else {
corr_gps[0][1] = 0.0f;
@@ -673,6 +702,9 @@ int position_estimator_inav_thread_main(int argc, char *argv[])
corr_gps[2][1] = 0.0f;
}
/* save rotation matrix at this moment */
memcpy(R_gps, R_buf[est_i], sizeof(R_gps));
w_gps_xy = min_eph_epv / fmaxf(min_eph_epv, gps.eph_m);
w_gps_z = min_eph_epv / fmaxf(min_eph_epv, gps.epv_m);
}
@@ -712,6 +744,14 @@ int position_estimator_inav_thread_main(int argc, char *argv[])
dt = fmaxf(fminf(0.02, dt), 0.002); // constrain dt from 2 to 20 ms
t_prev = t;
/* increase EPH/EPV on each step */
if (eph < max_eph_epv) {
eph *= 1.0 + dt;
}
if (epv < max_eph_epv) {
epv += 0.005 * dt; // add 1m to EPV each 200s (baro drift)
}
/* use GPS if it's valid and reference position initialized */
bool use_gps_xy = ref_inited && gps_valid && params.w_xy_gps_p > MIN_VALID_W;
bool use_gps_z = ref_inited && gps_valid && params.w_z_gps_p > MIN_VALID_W;
@@ -723,7 +763,7 @@ int position_estimator_inav_thread_main(int argc, char *argv[])
xy_src_time = t;
}
bool can_estimate_xy = (t < xy_src_time + xy_src_timeout);
bool can_estimate_xy = (eph < max_eph_epv) || use_gps_xy || use_flow;
bool dist_bottom_valid = (t < sonar_valid_time + sonar_valid_timeout);
@@ -755,7 +795,7 @@ int position_estimator_inav_thread_main(int argc, char *argv[])
corr_baro += offs_corr;
}
/* accelerometer bias correction */
/* accelerometer bias correction for GPS (use buffered rotation matrix) */
float accel_bias_corr[3] = { 0.0f, 0.0f, 0.0f };
if (use_gps_xy) {
@@ -769,6 +809,24 @@ int position_estimator_inav_thread_main(int argc, char *argv[])
accel_bias_corr[2] -= corr_gps[2][0] * w_z_gps_p * w_z_gps_p;
}
/* transform error vector from NED frame to body frame */
for (int i = 0; i < 3; i++) {
float c = 0.0f;
for (int j = 0; j < 3; j++) {
c += R_gps[j][i] * accel_bias_corr[j];
}
if (isfinite(c)) {
acc_bias[i] += c * params.w_acc_bias * dt;
}
}
/* accelerometer bias correction for flow and baro (assume that there is no delay) */
accel_bias_corr[0] = 0.0f;
accel_bias_corr[1] = 0.0f;
accel_bias_corr[2] = 0.0f;
if (use_flow) {
accel_bias_corr[0] -= corr_flow[0] * params.w_xy_flow;
accel_bias_corr[1] -= corr_flow[1] * params.w_xy_flow;
@@ -784,26 +842,31 @@ int position_estimator_inav_thread_main(int argc, char *argv[])
c += att.R[j][i] * accel_bias_corr[j];
}
acc_bias[i] += c * params.w_acc_bias * dt;
if (isfinite(c)) {
acc_bias[i] += c * params.w_acc_bias * dt;
}
}
/* inertial filter prediction for altitude */
inertial_filter_predict(dt, z_est);
inertial_filter_predict(dt, z_est, acc[2]);
if (!(isfinite(z_est[0]) && isfinite(z_est[1]) && isfinite(z_est[2]))) {
write_debug_log("BAD ESTIMATE AFTER Z PREDICTION", dt, x_est, y_est, z_est, x_est_prev, y_est_prev, z_est_prev, corr_acc, corr_gps, w_xy_gps_p, w_xy_gps_v);
if (!(isfinite(z_est[0]) && isfinite(z_est[1]))) {
write_debug_log("BAD ESTIMATE AFTER Z PREDICTION", dt, x_est, y_est, z_est, x_est_prev, y_est_prev, z_est_prev, acc, corr_gps, w_xy_gps_p, w_xy_gps_v);
memcpy(z_est, z_est_prev, sizeof(z_est));
}
/* inertial filter correction for altitude */
inertial_filter_correct(corr_baro, dt, z_est, 0, params.w_z_baro);
inertial_filter_correct(corr_gps[2][0], dt, z_est, 0, w_z_gps_p);
inertial_filter_correct(corr_acc[2], dt, z_est, 2, params.w_z_acc);
if (!(isfinite(z_est[0]) && isfinite(z_est[1]) && isfinite(z_est[2]))) {
write_debug_log("BAD ESTIMATE AFTER Z CORRECTION", dt, x_est, y_est, z_est, x_est_prev, y_est_prev, z_est_prev, corr_acc, corr_gps, w_xy_gps_p, w_xy_gps_v);
if (use_gps_z) {
epv = fminf(epv, gps.epv_m);
inertial_filter_correct(corr_gps[2][0], dt, z_est, 0, w_z_gps_p);
}
if (!(isfinite(z_est[0]) && isfinite(z_est[1]))) {
write_debug_log("BAD ESTIMATE AFTER Z CORRECTION", dt, x_est, y_est, z_est, x_est_prev, y_est_prev, z_est_prev, acc, corr_gps, w_xy_gps_p, w_xy_gps_v);
memcpy(z_est, z_est_prev, sizeof(z_est));
memset(corr_acc, 0, sizeof(corr_acc));
memset(corr_gps, 0, sizeof(corr_gps));
corr_baro = 0;
@@ -813,25 +876,26 @@ int position_estimator_inav_thread_main(int argc, char *argv[])
if (can_estimate_xy) {
/* inertial filter prediction for position */
inertial_filter_predict(dt, x_est);
inertial_filter_predict(dt, y_est);
inertial_filter_predict(dt, x_est, acc[0]);
inertial_filter_predict(dt, y_est, acc[1]);
if (!(isfinite(x_est[0]) && isfinite(x_est[1]) && isfinite(x_est[2]) && isfinite(y_est[0]) && isfinite(y_est[1]) && isfinite(y_est[2]))) {
write_debug_log("BAD ESTIMATE AFTER PREDICTION", dt, x_est, y_est, z_est, x_est_prev, y_est_prev, z_est_prev, corr_acc, corr_gps, w_xy_gps_p, w_xy_gps_v);
if (!(isfinite(x_est[0]) && isfinite(x_est[1]) && isfinite(y_est[0]) && isfinite(y_est[1]))) {
write_debug_log("BAD ESTIMATE AFTER PREDICTION", dt, x_est, y_est, z_est, x_est_prev, y_est_prev, z_est_prev, acc, corr_gps, w_xy_gps_p, w_xy_gps_v);
memcpy(x_est, x_est_prev, sizeof(x_est));
memcpy(y_est, y_est_prev, sizeof(y_est));
}
/* inertial filter correction for position */
inertial_filter_correct(corr_acc[0], dt, x_est, 2, params.w_xy_acc);
inertial_filter_correct(corr_acc[1], dt, y_est, 2, params.w_xy_acc);
if (use_flow) {
eph = fminf(eph, eph_flow);
inertial_filter_correct(corr_flow[0], dt, x_est, 1, params.w_xy_flow * w_flow);
inertial_filter_correct(corr_flow[1], dt, y_est, 1, params.w_xy_flow * w_flow);
}
if (use_gps_xy) {
eph = fminf(eph, gps.eph_m);
inertial_filter_correct(corr_gps[0][0], dt, x_est, 0, w_xy_gps_p);
inertial_filter_correct(corr_gps[1][0], dt, y_est, 0, w_xy_gps_p);
@@ -841,11 +905,10 @@ int position_estimator_inav_thread_main(int argc, char *argv[])
}
}
if (!(isfinite(x_est[0]) && isfinite(x_est[1]) && isfinite(x_est[2]) && isfinite(y_est[0]) && isfinite(y_est[1]) && isfinite(y_est[2]))) {
write_debug_log("BAD ESTIMATE AFTER CORRECTION", dt, x_est, y_est, z_est, x_est_prev, y_est_prev, z_est_prev, corr_acc, corr_gps, w_xy_gps_p, w_xy_gps_v);
if (!(isfinite(x_est[0]) && isfinite(x_est[1]) && isfinite(y_est[0]) && isfinite(y_est[1]))) {
write_debug_log("BAD ESTIMATE AFTER CORRECTION", dt, x_est, y_est, z_est, x_est_prev, y_est_prev, z_est_prev, acc, corr_gps, w_xy_gps_p, w_xy_gps_v);
memcpy(x_est, x_est_prev, sizeof(x_est));
memcpy(y_est, y_est_prev, sizeof(y_est));
memset(corr_acc, 0, sizeof(corr_acc));
memset(corr_gps, 0, sizeof(corr_gps));
memset(corr_flow, 0, sizeof(corr_flow));
@@ -906,8 +969,25 @@ int position_estimator_inav_thread_main(int argc, char *argv[])
}
}
if (t > pub_last + pub_interval) {
if (t > pub_last + PUB_INTERVAL) {
pub_last = t;
/* push current estimate to buffer */
est_buf[buf_ptr][0][0] = x_est[0];
est_buf[buf_ptr][0][1] = x_est[1];
est_buf[buf_ptr][1][0] = y_est[0];
est_buf[buf_ptr][1][1] = y_est[1];
est_buf[buf_ptr][2][0] = z_est[0];
est_buf[buf_ptr][2][1] = z_est[1];
/* push current rotation matrix to buffer */
memcpy(R_buf[buf_ptr], att.R, sizeof(att.R));
buf_ptr++;
if (buf_ptr >= EST_BUF_SIZE) {
buf_ptr = 0;
}
/* publish local position */
local_pos.xy_valid = can_estimate_xy;
local_pos.v_xy_valid = can_estimate_xy;
@@ -922,6 +1002,8 @@ int position_estimator_inav_thread_main(int argc, char *argv[])
local_pos.landed = landed;
local_pos.yaw = att.yaw;
local_pos.dist_bottom_valid = dist_bottom_valid;
local_pos.eph = eph;
local_pos.epv = epv;
if (local_pos.dist_bottom_valid) {
local_pos.dist_bottom = -z_est[0] - surface_offset;
@@ -950,9 +1032,8 @@ int position_estimator_inav_thread_main(int argc, char *argv[])
global_pos.yaw = local_pos.yaw;
// TODO implement dead-reckoning
global_pos.eph = gps.eph_m;
global_pos.epv = gps.epv_m;
global_pos.eph = eph;
global_pos.epv = epv;
if (vehicle_global_position_pub < 0) {
vehicle_global_position_pub = orb_advertise(ORB_ID(vehicle_global_position), &global_pos);
src/modules/position_estimator_inav/position_estimator_inav_params.c
+3 -6
View File
@@ -42,11 +42,9 @@
PARAM_DEFINE_FLOAT(INAV_W_Z_BARO, 0.5f);
PARAM_DEFINE_FLOAT(INAV_W_Z_GPS_P, 0.005f);
PARAM_DEFINE_FLOAT(INAV_W_Z_ACC, 20.0f);
PARAM_DEFINE_FLOAT(INAV_W_Z_SONAR, 3.0f);
PARAM_DEFINE_FLOAT(INAV_W_XY_GPS_P, 1.0f);
PARAM_DEFINE_FLOAT(INAV_W_XY_GPS_V, 2.0f);
PARAM_DEFINE_FLOAT(INAV_W_XY_ACC, 20.0f);
PARAM_DEFINE_FLOAT(INAV_W_XY_FLOW, 5.0f);
PARAM_DEFINE_FLOAT(INAV_W_GPS_FLOW, 0.1f);
PARAM_DEFINE_FLOAT(INAV_W_ACC_BIAS, 0.05f);
@@ -57,16 +55,15 @@ PARAM_DEFINE_FLOAT(INAV_SONAR_ERR, 0.5f);
PARAM_DEFINE_FLOAT(INAV_LAND_T, 3.0f);
PARAM_DEFINE_FLOAT(INAV_LAND_DISP, 0.7f);
PARAM_DEFINE_FLOAT(INAV_LAND_THR, 0.2f);
PARAM_DEFINE_FLOAT(INAV_DELAY_GPS, 0.2f);
int parameters_init(struct position_estimator_inav_param_handles *h)
{
h->w_z_baro = param_find("INAV_W_Z_BARO");
h->w_z_gps_p = param_find("INAV_W_Z_GPS_P");
h->w_z_acc = param_find("INAV_W_Z_ACC");
h->w_z_sonar = param_find("INAV_W_Z_SONAR");
h->w_xy_gps_p = param_find("INAV_W_XY_GPS_P");
h->w_xy_gps_v = param_find("INAV_W_XY_GPS_V");
h->w_xy_acc = param_find("INAV_W_XY_ACC");
h->w_xy_flow = param_find("INAV_W_XY_FLOW");
h->w_gps_flow = param_find("INAV_W_GPS_FLOW");
h->w_acc_bias = param_find("INAV_W_ACC_BIAS");
@@ -77,6 +74,7 @@ int parameters_init(struct position_estimator_inav_param_handles *h)
h->land_t = param_find("INAV_LAND_T");
h->land_disp = param_find("INAV_LAND_DISP");
h->land_thr = param_find("INAV_LAND_THR");
h->delay_gps = param_find("INAV_DELAY_GPS");
return OK;
}
@@ -85,11 +83,9 @@ int parameters_update(const struct position_estimator_inav_param_handles *h, str
{
param_get(h->w_z_baro, &(p->w_z_baro));
param_get(h->w_z_gps_p, &(p->w_z_gps_p));
param_get(h->w_z_acc, &(p->w_z_acc));
param_get(h->w_z_sonar, &(p->w_z_sonar));
param_get(h->w_xy_gps_p, &(p->w_xy_gps_p));
param_get(h->w_xy_gps_v, &(p->w_xy_gps_v));
param_get(h->w_xy_acc, &(p->w_xy_acc));
param_get(h->w_xy_flow, &(p->w_xy_flow));
param_get(h->w_gps_flow, &(p->w_gps_flow));
param_get(h->w_acc_bias, &(p->w_acc_bias));
@@ -100,6 +96,7 @@ int parameters_update(const struct position_estimator_inav_param_handles *h, str
param_get(h->land_t, &(p->land_t));
param_get(h->land_disp, &(p->land_disp));
param_get(h->land_thr, &(p->land_thr));
param_get(h->delay_gps, &(p->delay_gps));
return OK;
}
src/modules/position_estimator_inav/position_estimator_inav_params.h
+2 -4
View File
@@ -43,11 +43,9 @@
struct position_estimator_inav_params {
float w_z_baro;
float w_z_gps_p;
float w_z_acc;
float w_z_sonar;
float w_xy_gps_p;
float w_xy_gps_v;
float w_xy_acc;
float w_xy_flow;
float w_gps_flow;
float w_acc_bias;
@@ -58,16 +56,15 @@ struct position_estimator_inav_params {
float land_t;
float land_disp;
float land_thr;
float delay_gps;
};
struct position_estimator_inav_param_handles {
param_t w_z_baro;
param_t w_z_gps_p;
param_t w_z_acc;
param_t w_z_sonar;
param_t w_xy_gps_p;
param_t w_xy_gps_v;
param_t w_xy_acc;
param_t w_xy_flow;
param_t w_gps_flow;
param_t w_acc_bias;
@@ -78,6 +75,7 @@ struct position_estimator_inav_param_handles {
param_t land_t;
param_t land_disp;
param_t land_thr;
param_t delay_gps;
};
/**
src/modules/position_estimator_mc/codegen/kalman_dlqe1.c
-58
View File
@@ -1,58 +0,0 @@
/*
* kalman_dlqe1.c
*
* Code generation for function 'kalman_dlqe1'
*
* C source code generated on: Wed Feb 13 20:34:32 2013
*
*/
/* Include files */
#include "rt_nonfinite.h"
#include "kalman_dlqe1.h"
/* Type Definitions */
/* Named Constants */
/* Variable Declarations */
/* Variable Definitions */
/* Function Declarations */
/* Function Definitions */
void kalman_dlqe1(const real32_T A[9], const real32_T C[3], const real32_T K[3],
const real32_T x_aposteriori_k[3], real32_T z, real32_T
x_aposteriori[3])
{
printf("[dlqe input]: x_aposteriori_k %12.8f\t %12.8f\t %12.8f\t z:%12.8f\n", (double)(x_aposteriori_k[0]), (double)(x_aposteriori_k[1]), (double)(x_aposteriori_k[2]), (double)z);
printf("[dlqe input]: C[0]: %12.8f\tC[1] %12.8f\tC[2] %12.8f\n", (double)(C[0]), (double)(C[1]), (double)(C[2]));
real32_T y;
int32_T i0;
real32_T b_y[3];
int32_T i1;
real32_T f0;
y = 0.0F;
for (i0 = 0; i0 < 3; i0++) {
b_y[i0] = 0.0F;
for (i1 = 0; i1 < 3; i1++) {
b_y[i0] += C[i1] * A[i1 + 3 * i0];
}
y += b_y[i0] * x_aposteriori_k[i0];
}
y = z - y;
for (i0 = 0; i0 < 3; i0++) {
f0 = 0.0F;
for (i1 = 0; i1 < 3; i1++) {
f0 += A[i0 + 3 * i1] * x_aposteriori_k[i1];
}
x_aposteriori[i0] = f0 + K[i0] * y;
}
//printf("[dlqe output]: x_aposteriori %12.8f\t %12.8f\t %12.8f\n", (double)(x_aposteriori[0]), (double)(x_aposteriori[1]), (double)(x_aposteriori[2]));
}
/* End of code generation (kalman_dlqe1.c) */
src/modules/position_estimator_mc/codegen/kalman_dlqe1.h
-30
View File
@@ -1,30 +0,0 @@
/*
* kalman_dlqe1.h
*
* Code generation for function 'kalman_dlqe1'
*
* C source code generated on: Wed Feb 13 20:34:32 2013
*
*/
#ifndef __KALMAN_DLQE1_H__
#define __KALMAN_DLQE1_H__
/* Include files */
#include <stddef.h>
#include <stdlib.h>
#include "rtwtypes.h"
#include "kalman_dlqe1_types.h"
/* Type Definitions */
/* Named Constants */
/* Variable Declarations */
/* Variable Definitions */
/* Function Declarations */
extern void kalman_dlqe1(const real32_T A[9], const real32_T C[3], const real32_T K[3], const real32_T x_aposteriori_k[3], real32_T z, real32_T x_aposteriori[3]);
#endif
/* End of code generation (kalman_dlqe1.h) */
src/modules/position_estimator_mc/codegen/kalman_dlqe1_initialize.c
-31
View File
@@ -1,31 +0,0 @@
/*
* kalman_dlqe1_initialize.c
*
* Code generation for function 'kalman_dlqe1_initialize'
*
* C source code generated on: Wed Feb 13 20:34:31 2013
*
*/
/* Include files */
#include "rt_nonfinite.h"
#include "kalman_dlqe1.h"
#include "kalman_dlqe1_initialize.h"
/* Type Definitions */
/* Named Constants */
/* Variable Declarations */
/* Variable Definitions */
/* Function Declarations */
/* Function Definitions */
void kalman_dlqe1_initialize(void)
{
rt_InitInfAndNaN(8U);
}
/* End of code generation (kalman_dlqe1_initialize.c) */
src/modules/position_estimator_mc/codegen/kalman_dlqe1_initialize.h
-30
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@@ -1,30 +0,0 @@
/*
* kalman_dlqe1_initialize.h
*
* Code generation for function 'kalman_dlqe1_initialize'
*
* C source code generated on: Wed Feb 13 20:34:31 2013
*
*/
#ifndef __KALMAN_DLQE1_INITIALIZE_H__
#define __KALMAN_DLQE1_INITIALIZE_H__
/* Include files */
#include <stddef.h>
#include <stdlib.h>
#include "rtwtypes.h"
#include "kalman_dlqe1_types.h"
/* Type Definitions */
/* Named Constants */
/* Variable Declarations */
/* Variable Definitions */
/* Function Declarations */
extern void kalman_dlqe1_initialize(void);
#endif
/* End of code generation (kalman_dlqe1_initialize.h) */
src/modules/position_estimator_mc/codegen/kalman_dlqe1_terminate.c
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@@ -1,31 +0,0 @@
/*
* kalman_dlqe1_terminate.c
*
* Code generation for function 'kalman_dlqe1_terminate'
*
* C source code generated on: Wed Feb 13 20:34:31 2013
*
*/
/* Include files */
#include "rt_nonfinite.h"
#include "kalman_dlqe1.h"
#include "kalman_dlqe1_terminate.h"
/* Type Definitions */
/* Named Constants */
/* Variable Declarations */
/* Variable Definitions */
/* Function Declarations */
/* Function Definitions */
void kalman_dlqe1_terminate(void)
{
/* (no terminate code required) */
}
/* End of code generation (kalman_dlqe1_terminate.c) */
src/modules/position_estimator_mc/codegen/kalman_dlqe1_terminate.h
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@@ -1,30 +0,0 @@
/*
* kalman_dlqe1_terminate.h
*
* Code generation for function 'kalman_dlqe1_terminate'
*
* C source code generated on: Wed Feb 13 20:34:32 2013
*
*/
#ifndef __KALMAN_DLQE1_TERMINATE_H__
#define __KALMAN_DLQE1_TERMINATE_H__
/* Include files */
#include <stddef.h>
#include <stdlib.h>
#include "rtwtypes.h"
#include "kalman_dlqe1_types.h"
/* Type Definitions */
/* Named Constants */
/* Variable Declarations */
/* Variable Definitions */
/* Function Declarations */
extern void kalman_dlqe1_terminate(void);
#endif
/* End of code generation (kalman_dlqe1_terminate.h) */
src/modules/position_estimator_mc/codegen/kalman_dlqe1_types.h
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@@ -1,16 +0,0 @@
/*
* kalman_dlqe1_types.h
*
* Code generation for function 'kalman_dlqe1'
*
* C source code generated on: Wed Feb 13 20:34:31 2013
*
*/
#ifndef __KALMAN_DLQE1_TYPES_H__
#define __KALMAN_DLQE1_TYPES_H__
/* Type Definitions */
#endif
/* End of code generation (kalman_dlqe1_types.h) */
src/modules/position_estimator_mc/codegen/kalman_dlqe2.c
-119
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@@ -1,119 +0,0 @@
/*
* kalman_dlqe2.c
*
* Code generation for function 'kalman_dlqe2'
*
* C source code generated on: Thu Feb 14 12:52:28 2013
*
*/
/* Include files */
#include "rt_nonfinite.h"
#include "kalman_dlqe2.h"
/* Type Definitions */
/* Named Constants */
/* Variable Declarations */
/* Variable Definitions */
/* Function Declarations */
static real32_T rt_powf_snf(real32_T u0, real32_T u1);
/* Function Definitions */
static real32_T rt_powf_snf(real32_T u0, real32_T u1)
{
real32_T y;
real32_T f1;
real32_T f2;
if (rtIsNaNF(u0) || rtIsNaNF(u1)) {
y = ((real32_T)rtNaN);
} else {
f1 = (real32_T)fabs(u0);
f2 = (real32_T)fabs(u1);
if (rtIsInfF(u1)) {
if (f1 == 1.0F) {
y = ((real32_T)rtNaN);
} else if (f1 > 1.0F) {
if (u1 > 0.0F) {
y = ((real32_T)rtInf);
} else {
y = 0.0F;
}
} else if (u1 > 0.0F) {
y = 0.0F;
} else {
y = ((real32_T)rtInf);
}
} else if (f2 == 0.0F) {
y = 1.0F;
} else if (f2 == 1.0F) {
if (u1 > 0.0F) {
y = u0;
} else {
y = 1.0F / u0;
}
} else if (u1 == 2.0F) {
y = u0 * u0;
} else if ((u1 == 0.5F) && (u0 >= 0.0F)) {
y = (real32_T)sqrt(u0);
} else if ((u0 < 0.0F) && (u1 > (real32_T)floor(u1))) {
y = ((real32_T)rtNaN);
} else {
y = (real32_T)pow(u0, u1);
}
}
return y;
}
void kalman_dlqe2(real32_T dt, real32_T k1, real32_T k2, real32_T k3, const
real32_T x_aposteriori_k[3], real32_T z, real32_T
x_aposteriori[3])
{
//printf("[dqle2] dt: %12.8f\tvk1 %12.8f\tk2: %12.8f\tk3: %12.8f\n", (double)(dt), (double)(k1), (double)(k2), (double)(k3));
//printf("[dqle2] dt: %8.4f\n", (double)(dt));//, (double)(k1), (double)(k2), (double)(k3));
real32_T A[9];
real32_T y;
int32_T i0;
static const int8_T iv0[3] = { 0, 0, 1 };
real32_T b_k1[3];
int32_T i1;
static const int8_T iv1[3] = { 1, 0, 0 };
real32_T f0;
A[0] = 1.0F;
A[3] = dt;
A[6] = 0.5F * rt_powf_snf(dt, 2.0F);
A[1] = 0.0F;
A[4] = 1.0F;
A[7] = dt;
y = 0.0F;
for (i0 = 0; i0 < 3; i0++) {
A[2 + 3 * i0] = (real32_T)iv0[i0];
b_k1[i0] = 0.0F;
for (i1 = 0; i1 < 3; i1++) {
b_k1[i0] += (real32_T)iv1[i1] * A[i1 + 3 * i0];
}
y += b_k1[i0] * x_aposteriori_k[i0];
}
y = z - y;
b_k1[0] = k1;
b_k1[1] = k2;
b_k1[2] = k3;
for (i0 = 0; i0 < 3; i0++) {
f0 = 0.0F;
for (i1 = 0; i1 < 3; i1++) {
f0 += A[i0 + 3 * i1] * x_aposteriori_k[i1];
}
x_aposteriori[i0] = f0 + b_k1[i0] * y;
}
}
/* End of code generation (kalman_dlqe2.c) */
src/modules/position_estimator_mc/codegen/kalman_dlqe2.h
-32
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@@ -1,32 +0,0 @@
/*
* kalman_dlqe2.h
*
* Code generation for function 'kalman_dlqe2'
*
* C source code generated on: Thu Feb 14 12:52:29 2013
*
*/
#ifndef __KALMAN_DLQE2_H__
#define __KALMAN_DLQE2_H__
/* Include files */
#include <math.h>
#include <stddef.h>
#include <stdlib.h>
#include "rt_nonfinite.h"
#include "rtwtypes.h"
#include "kalman_dlqe2_types.h"
/* Type Definitions */
/* Named Constants */
/* Variable Declarations */
/* Variable Definitions */
/* Function Declarations */
extern void kalman_dlqe2(real32_T dt, real32_T k1, real32_T k2, real32_T k3, const real32_T x_aposteriori_k[3], real32_T z, real32_T x_aposteriori[3]);
#endif
/* End of code generation (kalman_dlqe2.h) */
src/modules/position_estimator_mc/codegen/kalman_dlqe2_initialize.c
-31
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@@ -1,31 +0,0 @@
/*
* kalman_dlqe2_initialize.c
*
* Code generation for function 'kalman_dlqe2_initialize'
*
* C source code generated on: Thu Feb 14 12:52:28 2013
*
*/
/* Include files */
#include "rt_nonfinite.h"
#include "kalman_dlqe2.h"
#include "kalman_dlqe2_initialize.h"
/* Type Definitions */
/* Named Constants */
/* Variable Declarations */
/* Variable Definitions */
/* Function Declarations */
/* Function Definitions */
void kalman_dlqe2_initialize(void)
{
rt_InitInfAndNaN(8U);
}
/* End of code generation (kalman_dlqe2_initialize.c) */
src/modules/position_estimator_mc/codegen/kalman_dlqe2_initialize.h
-32
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@@ -1,32 +0,0 @@
/*
* kalman_dlqe2_initialize.h
*
* Code generation for function 'kalman_dlqe2_initialize'
*
* C source code generated on: Thu Feb 14 12:52:28 2013
*
*/
#ifndef __KALMAN_DLQE2_INITIALIZE_H__
#define __KALMAN_DLQE2_INITIALIZE_H__
/* Include files */
#include <math.h>
#include <stddef.h>
#include <stdlib.h>
#include "rt_nonfinite.h"
#include "rtwtypes.h"
#include "kalman_dlqe2_types.h"
/* Type Definitions */
/* Named Constants */
/* Variable Declarations */
/* Variable Definitions */
/* Function Declarations */
extern void kalman_dlqe2_initialize(void);
#endif
/* End of code generation (kalman_dlqe2_initialize.h) */
src/modules/position_estimator_mc/codegen/kalman_dlqe2_terminate.c
-31
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@@ -1,31 +0,0 @@
/*
* kalman_dlqe2_terminate.c
*
* Code generation for function 'kalman_dlqe2_terminate'
*
* C source code generated on: Thu Feb 14 12:52:28 2013
*
*/
/* Include files */
#include "rt_nonfinite.h"
#include "kalman_dlqe2.h"
#include "kalman_dlqe2_terminate.h"
/* Type Definitions */
/* Named Constants */
/* Variable Declarations */
/* Variable Definitions */
/* Function Declarations */
/* Function Definitions */
void kalman_dlqe2_terminate(void)
{
/* (no terminate code required) */
}
/* End of code generation (kalman_dlqe2_terminate.c) */
src/modules/position_estimator_mc/codegen/kalman_dlqe2_terminate.h
-32
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@@ -1,32 +0,0 @@
/*
* kalman_dlqe2_terminate.h
*
* Code generation for function 'kalman_dlqe2_terminate'
*
* C source code generated on: Thu Feb 14 12:52:28 2013
*
*/
#ifndef __KALMAN_DLQE2_TERMINATE_H__
#define __KALMAN_DLQE2_TERMINATE_H__
/* Include files */
#include <math.h>
#include <stddef.h>
#include <stdlib.h>
#include "rt_nonfinite.h"
#include "rtwtypes.h"
#include "kalman_dlqe2_types.h"
/* Type Definitions */
/* Named Constants */
/* Variable Declarations */
/* Variable Definitions */
/* Function Declarations */
extern void kalman_dlqe2_terminate(void);
#endif
/* End of code generation (kalman_dlqe2_terminate.h) */
src/modules/position_estimator_mc/codegen/kalman_dlqe2_types.h
-16
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@@ -1,16 +0,0 @@
/*
* kalman_dlqe2_types.h
*
* Code generation for function 'kalman_dlqe2'
*
* C source code generated on: Thu Feb 14 12:52:28 2013
*
*/
#ifndef __KALMAN_DLQE2_TYPES_H__
#define __KALMAN_DLQE2_TYPES_H__
/* Type Definitions */
#endif
/* End of code generation (kalman_dlqe2_types.h) */
src/modules/position_estimator_mc/codegen/kalman_dlqe3.c
-137
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@@ -1,137 +0,0 @@
/*
* kalman_dlqe3.c
*
* Code generation for function 'kalman_dlqe3'
*
* C source code generated on: Tue Feb 19 15:26:31 2013
*
*/
/* Include files */
#include "rt_nonfinite.h"
#include "kalman_dlqe3.h"
#include "randn.h"
/* Type Definitions */
/* Named Constants */
/* Variable Declarations */
/* Variable Definitions */
/* Function Declarations */
static real32_T rt_powf_snf(real32_T u0, real32_T u1);
/* Function Definitions */
static real32_T rt_powf_snf(real32_T u0, real32_T u1)
{
real32_T y;
real32_T f1;
real32_T f2;
if (rtIsNaNF(u0) || rtIsNaNF(u1)) {
y = ((real32_T)rtNaN);
} else {
f1 = (real32_T)fabs(u0);
f2 = (real32_T)fabs(u1);
if (rtIsInfF(u1)) {
if (f1 == 1.0F) {
y = ((real32_T)rtNaN);
} else if (f1 > 1.0F) {
if (u1 > 0.0F) {
y = ((real32_T)rtInf);
} else {
y = 0.0F;
}
} else if (u1 > 0.0F) {
y = 0.0F;
} else {
y = ((real32_T)rtInf);
}
} else if (f2 == 0.0F) {
y = 1.0F;
} else if (f2 == 1.0F) {
if (u1 > 0.0F) {
y = u0;
} else {
y = 1.0F / u0;
}
} else if (u1 == 2.0F) {
y = u0 * u0;
} else if ((u1 == 0.5F) && (u0 >= 0.0F)) {
y = (real32_T)sqrt(u0);
} else if ((u0 < 0.0F) && (u1 > (real32_T)floor(u1))) {
y = ((real32_T)rtNaN);
} else {
y = (real32_T)pow(u0, u1);
}
}
return y;
}
void kalman_dlqe3(real32_T dt, real32_T k1, real32_T k2, real32_T k3, const
real32_T x_aposteriori_k[3], real32_T z, real32_T posUpdate,
real32_T addNoise, real32_T sigma, real32_T x_aposteriori[3])
{
real32_T A[9];
int32_T i0;
static const int8_T iv0[3] = { 0, 0, 1 };
real_T b;
real32_T y;
real32_T b_y[3];
int32_T i1;
static const int8_T iv1[3] = { 1, 0, 0 };
real32_T b_k1[3];
real32_T f0;
A[0] = 1.0F;
A[3] = dt;
A[6] = 0.5F * rt_powf_snf(dt, 2.0F);
A[1] = 0.0F;
A[4] = 1.0F;
A[7] = dt;
for (i0 = 0; i0 < 3; i0++) {
A[2 + 3 * i0] = (real32_T)iv0[i0];
}
if (addNoise == 1.0F) {
b = randn();
z += sigma * (real32_T)b;
}
if (posUpdate != 0.0F) {
y = 0.0F;
for (i0 = 0; i0 < 3; i0++) {
b_y[i0] = 0.0F;
for (i1 = 0; i1 < 3; i1++) {
b_y[i0] += (real32_T)iv1[i1] * A[i1 + 3 * i0];
}
y += b_y[i0] * x_aposteriori_k[i0];
}
y = z - y;
b_k1[0] = k1;
b_k1[1] = k2;
b_k1[2] = k3;
for (i0 = 0; i0 < 3; i0++) {
f0 = 0.0F;
for (i1 = 0; i1 < 3; i1++) {
f0 += A[i0 + 3 * i1] * x_aposteriori_k[i1];
}
x_aposteriori[i0] = f0 + b_k1[i0] * y;
}
} else {
for (i0 = 0; i0 < 3; i0++) {
x_aposteriori[i0] = 0.0F;
for (i1 = 0; i1 < 3; i1++) {
x_aposteriori[i0] += A[i0 + 3 * i1] * x_aposteriori_k[i1];
}
}
}
}
/* End of code generation (kalman_dlqe3.c) */
src/modules/position_estimator_mc/codegen/kalman_dlqe3.h
-33
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@@ -1,33 +0,0 @@
/*
* kalman_dlqe3.h
*
* Code generation for function 'kalman_dlqe3'
*
* C source code generated on: Tue Feb 19 15:26:32 2013
*
*/
#ifndef __KALMAN_DLQE3_H__
#define __KALMAN_DLQE3_H__
/* Include files */
#include <math.h>
#include <stddef.h>
#include <stdlib.h>
#include <string.h>
#include "rt_nonfinite.h"
#include "rtwtypes.h"
#include "kalman_dlqe3_types.h"
/* Type Definitions */
/* Named Constants */
/* Variable Declarations */
/* Variable Definitions */
/* Function Declarations */
extern void kalman_dlqe3(real32_T dt, real32_T k1, real32_T k2, real32_T k3, const real32_T x_aposteriori_k[3], real32_T z, real32_T posUpdate, real32_T addNoise, real32_T sigma, real32_T x_aposteriori[3]);
#endif
/* End of code generation (kalman_dlqe3.h) */
src/modules/position_estimator_mc/codegen/kalman_dlqe3_data.c
-32
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@@ -1,32 +0,0 @@
/*
* kalman_dlqe3_data.c
*
* Code generation for function 'kalman_dlqe3_data'
*
* C source code generated on: Tue Feb 19 15:26:31 2013
*
*/
/* Include files */
#include "rt_nonfinite.h"
#include "kalman_dlqe3.h"
#include "kalman_dlqe3_data.h"
/* Type Definitions */
/* Named Constants */
/* Variable Declarations */
/* Variable Definitions */
uint32_T method;
uint32_T state[2];
uint32_T b_method;
uint32_T b_state;
uint32_T c_state[2];
boolean_T state_not_empty;
/* Function Declarations */
/* Function Definitions */
/* End of code generation (kalman_dlqe3_data.c) */
src/modules/position_estimator_mc/codegen/kalman_dlqe3_data.h
-38
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@@ -1,38 +0,0 @@
/*
* kalman_dlqe3_data.h
*
* Code generation for function 'kalman_dlqe3_data'
*
* C source code generated on: Tue Feb 19 15:26:31 2013
*
*/
#ifndef __KALMAN_DLQE3_DATA_H__
#define __KALMAN_DLQE3_DATA_H__
/* Include files */
#include <math.h>
#include <stddef.h>
#include <stdlib.h>
#include <string.h>
#include "rt_nonfinite.h"
#include "rtwtypes.h"
#include "kalman_dlqe3_types.h"
/* Type Definitions */
/* Named Constants */
/* Variable Declarations */
extern uint32_T method;
extern uint32_T state[2];
extern uint32_T b_method;
extern uint32_T b_state;
extern uint32_T c_state[2];
extern boolean_T state_not_empty;
/* Variable Definitions */
/* Function Declarations */
#endif
/* End of code generation (kalman_dlqe3_data.h) */
src/modules/position_estimator_mc/codegen/kalman_dlqe3_initialize.c
-47
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@@ -1,47 +0,0 @@
/*
* kalman_dlqe3_initialize.c
*
* Code generation for function 'kalman_dlqe3_initialize'
*
* C source code generated on: Tue Feb 19 15:26:31 2013
*
*/
/* Include files */
#include "rt_nonfinite.h"
#include "kalman_dlqe3.h"
#include "kalman_dlqe3_initialize.h"
#include "kalman_dlqe3_data.h"
/* Type Definitions */
/* Named Constants */
/* Variable Declarations */
/* Variable Definitions */
/* Function Declarations */
/* Function Definitions */
void kalman_dlqe3_initialize(void)
{
int32_T i;
static const uint32_T uv0[2] = { 362436069U, 0U };
rt_InitInfAndNaN(8U);
state_not_empty = FALSE;
b_state = 1144108930U;
b_method = 7U;
method = 0U;
for (i = 0; i < 2; i++) {
c_state[i] = 362436069U + 158852560U * (uint32_T)i;
state[i] = uv0[i];
}
if (state[1] == 0U) {
state[1] = 521288629U;
}
}
/* End of code generation (kalman_dlqe3_initialize.c) */
src/modules/position_estimator_mc/codegen/kalman_dlqe3_initialize.h
-33
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@@ -1,33 +0,0 @@
/*
* kalman_dlqe3_initialize.h
*
* Code generation for function 'kalman_dlqe3_initialize'
*
* C source code generated on: Tue Feb 19 15:26:31 2013
*
*/
#ifndef __KALMAN_DLQE3_INITIALIZE_H__
#define __KALMAN_DLQE3_INITIALIZE_H__
/* Include files */
#include <math.h>
#include <stddef.h>
#include <stdlib.h>
#include <string.h>
#include "rt_nonfinite.h"
#include "rtwtypes.h"
#include "kalman_dlqe3_types.h"
/* Type Definitions */
/* Named Constants */
/* Variable Declarations */
/* Variable Definitions */
/* Function Declarations */
extern void kalman_dlqe3_initialize(void);
#endif
/* End of code generation (kalman_dlqe3_initialize.h) */
src/modules/position_estimator_mc/codegen/kalman_dlqe3_terminate.c
-31
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@@ -1,31 +0,0 @@
/*
* kalman_dlqe3_terminate.c
*
* Code generation for function 'kalman_dlqe3_terminate'
*
* C source code generated on: Tue Feb 19 15:26:31 2013
*
*/
/* Include files */
#include "rt_nonfinite.h"
#include "kalman_dlqe3.h"
#include "kalman_dlqe3_terminate.h"
/* Type Definitions */
/* Named Constants */
/* Variable Declarations */
/* Variable Definitions */
/* Function Declarations */
/* Function Definitions */
void kalman_dlqe3_terminate(void)
{
/* (no terminate code required) */
}
/* End of code generation (kalman_dlqe3_terminate.c) */
src/modules/position_estimator_mc/codegen/kalman_dlqe3_terminate.h
-33
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@@ -1,33 +0,0 @@
/*
* kalman_dlqe3_terminate.h
*
* Code generation for function 'kalman_dlqe3_terminate'
*
* C source code generated on: Tue Feb 19 15:26:31 2013
*
*/
#ifndef __KALMAN_DLQE3_TERMINATE_H__
#define __KALMAN_DLQE3_TERMINATE_H__
/* Include files */
#include <math.h>
#include <stddef.h>
#include <stdlib.h>
#include <string.h>
#include "rt_nonfinite.h"
#include "rtwtypes.h"
#include "kalman_dlqe3_types.h"
/* Type Definitions */
/* Named Constants */
/* Variable Declarations */
/* Variable Definitions */
/* Function Declarations */
extern void kalman_dlqe3_terminate(void);
#endif
/* End of code generation (kalman_dlqe3_terminate.h) */
src/modules/position_estimator_mc/codegen/kalman_dlqe3_types.h
-16
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@@ -1,16 +0,0 @@
/*
* kalman_dlqe3_types.h
*
* Code generation for function 'kalman_dlqe3'
*
* C source code generated on: Tue Feb 19 15:26:30 2013
*
*/
#ifndef __KALMAN_DLQE3_TYPES_H__
#define __KALMAN_DLQE3_TYPES_H__
/* Type Definitions */
#endif
/* End of code generation (kalman_dlqe3_types.h) */
src/modules/position_estimator_mc/codegen/positionKalmanFilter1D.c
-136
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@@ -1,136 +0,0 @@
/*
* positionKalmanFilter1D.c
*
* Code generation for function 'positionKalmanFilter1D'
*
* C source code generated on: Fri Nov 30 14:26:11 2012
*
*/
/* Include files */
#include "rt_nonfinite.h"
#include "positionKalmanFilter1D.h"
/* Type Definitions */
/* Named Constants */
/* Variable Declarations */
/* Variable Definitions */
/* Function Declarations */
/* Function Definitions */
void positionKalmanFilter1D(const real32_T A[9], const real32_T B[3], const
real32_T C[3], const real32_T x_aposteriori_k[3], const real32_T
P_aposteriori_k[9], real32_T u, real32_T z, uint8_T gps_update, const real32_T
Q[9], real32_T R, real32_T thresh, real32_T decay, real32_T x_aposteriori[3],
real32_T P_aposteriori[9])
{
int32_T i0;
real32_T f0;
int32_T k;
real32_T b_A[9];
int32_T i1;
real32_T P_apriori[9];
real32_T y;
real32_T K[3];
real32_T S;
int8_T I[9];
/* prediction */
for (i0 = 0; i0 < 3; i0++) {
f0 = 0.0F;
for (k = 0; k < 3; k++) {
f0 += A[i0 + 3 * k] * x_aposteriori_k[k];
}
x_aposteriori[i0] = f0 + B[i0] * u;
}
for (i0 = 0; i0 < 3; i0++) {
for (k = 0; k < 3; k++) {
b_A[i0 + 3 * k] = 0.0F;
for (i1 = 0; i1 < 3; i1++) {
b_A[i0 + 3 * k] += A[i0 + 3 * i1] * P_aposteriori_k[i1 + 3 * k];
}
}
}
for (i0 = 0; i0 < 3; i0++) {
for (k = 0; k < 3; k++) {
f0 = 0.0F;
for (i1 = 0; i1 < 3; i1++) {
f0 += b_A[i0 + 3 * i1] * A[k + 3 * i1];
}
P_apriori[i0 + 3 * k] = f0 + Q[i0 + 3 * k];
}
}
if ((real32_T)fabs(u) < thresh) {
x_aposteriori[1] *= decay;
}
/* update */
if (gps_update == 1) {
y = 0.0F;
for (k = 0; k < 3; k++) {
y += C[k] * x_aposteriori[k];
K[k] = 0.0F;
for (i0 = 0; i0 < 3; i0++) {
K[k] += C[i0] * P_apriori[i0 + 3 * k];
}
}
y = z - y;
S = 0.0F;
for (k = 0; k < 3; k++) {
S += K[k] * C[k];
}
S += R;
for (i0 = 0; i0 < 3; i0++) {
f0 = 0.0F;
for (k = 0; k < 3; k++) {
f0 += P_apriori[i0 + 3 * k] * C[k];
}
K[i0] = f0 / S;
}
for (i0 = 0; i0 < 3; i0++) {
x_aposteriori[i0] += K[i0] * y;
}
for (i0 = 0; i0 < 9; i0++) {
I[i0] = 0;
}
for (k = 0; k < 3; k++) {
I[k + 3 * k] = 1;
}
for (i0 = 0; i0 < 3; i0++) {
for (k = 0; k < 3; k++) {
b_A[k + 3 * i0] = (real32_T)I[k + 3 * i0] - K[k] * C[i0];
}
}
for (i0 = 0; i0 < 3; i0++) {
for (k = 0; k < 3; k++) {
P_aposteriori[i0 + 3 * k] = 0.0F;
for (i1 = 0; i1 < 3; i1++) {
P_aposteriori[i0 + 3 * k] += b_A[i0 + 3 * i1] * P_apriori[i1 + 3 * k];
}
}
}
} else {
for (i0 = 0; i0 < 9; i0++) {
P_aposteriori[i0] = P_apriori[i0];
}
}
}
/* End of code generation (positionKalmanFilter1D.c) */

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