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AttPosEKF: Do not publish global position if we have none

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This commit is contained in:
Johan Jansen
2015-02-11 16:43:52 +01:00
parent c1e13e5afb
commit 8d8a66607a
2 changed files with 45 additions and 45 deletions
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src/modules/ekf_att_pos_estimator/ekf_att_pos_estimator_main.cpp
+44 -44
View File
@@ -1525,9 +1525,9 @@ void AttitudePositionEstimatorEKF::task_main()
_local_pos.vy = _ekf->states[5];
_local_pos.vz = _ekf->states[6];
_local_pos.xy_valid = _gps_initialized;
_local_pos.xy_valid = _gps_initialized && _gps.fix_type >= 3;
_local_pos.z_valid = true;
_local_pos.v_xy_valid = _gps_initialized;
_local_pos.v_xy_valid = _gps_initialized && _gps.fix_type >= 3;
_local_pos.v_z_valid = true;
_local_pos.xy_global = _gps_initialized;
@@ -1544,53 +1544,53 @@ void AttitudePositionEstimatorEKF::task_main()
_local_pos_pub = orb_advertise(ORB_ID(vehicle_local_position), &_local_pos);
}
_global_pos.timestamp = _local_pos.timestamp;
//Publish Global Position, but only if it's any good
if(_gps_initialized && _gps.fix_type >= 3 && _gps.eph < _parameters.pos_stddev_threshold * 2.0f)
{
_global_pos.timestamp = _local_pos.timestamp;
if (_local_pos.xy_global) {
double est_lat, est_lon;
map_projection_reproject(&_pos_ref, _local_pos.x, _local_pos.y, &est_lat, &est_lon);
_global_pos.lat = est_lat;
_global_pos.lon = est_lon;
_global_pos.time_utc_usec = _gps.time_utc_usec;
}
if (_local_pos.v_xy_valid) {
_global_pos.vel_n = _local_pos.vx;
_global_pos.vel_e = _local_pos.vy;
} else {
_global_pos.vel_n = 0.0f;
_global_pos.vel_e = 0.0f;
}
/* local pos alt is negative, change sign and add alt offsets */
_global_pos.alt = _baro_ref + (-_local_pos.z) - _baro_gps_offset;
if (_local_pos.v_z_valid) {
_global_pos.vel_d = _local_pos.vz;
}
/* terrain altitude */
_global_pos.terrain_alt = _ekf->hgtRef - _ekf->flowStates[1];
_global_pos.terrain_alt_valid = (_distance_last_valid > 0) &&
(hrt_elapsed_time(&_distance_last_valid) < 20 * 1000 * 1000);
_global_pos.yaw = _local_pos.yaw;
if (_local_pos.xy_global) {
double est_lat, est_lon;
map_projection_reproject(&_pos_ref, _local_pos.x, _local_pos.y, &est_lat, &est_lon);
_global_pos.lat = est_lat;
_global_pos.lon = est_lon;
_global_pos.time_utc_usec = _gps.time_utc_usec;
_global_pos.eph = _gps.eph;
_global_pos.epv = _gps.epv;
}
if (_local_pos.v_xy_valid) {
_global_pos.vel_n = _local_pos.vx;
_global_pos.vel_e = _local_pos.vy;
} else {
_global_pos.vel_n = 0.0f;
_global_pos.vel_e = 0.0f;
}
/* lazily publish the global position only once available */
if (_global_pos_pub > 0) {
/* publish the global position */
orb_publish(ORB_ID(vehicle_global_position), _global_pos_pub, &_global_pos);
/* local pos alt is negative, change sign and add alt offsets */
_global_pos.alt = _baro_ref + (-_local_pos.z) - _baro_gps_offset;
if (_local_pos.v_z_valid) {
_global_pos.vel_d = _local_pos.vz;
}
/* terrain altitude */
_global_pos.terrain_alt = _ekf->hgtRef - _ekf->flowStates[1];
_global_pos.terrain_alt_valid = (_distance_last_valid > 0) &&
(hrt_elapsed_time(&_distance_last_valid) < 20 * 1000 * 1000);
_global_pos.yaw = _local_pos.yaw;
_global_pos.eph = _gps.eph;
_global_pos.epv = _gps.epv;
_global_pos.timestamp = _local_pos.timestamp;
/* lazily publish the global position only once available */
if (_global_pos_pub > 0) {
/* publish the global position */
orb_publish(ORB_ID(vehicle_global_position), _global_pos_pub, &_global_pos);
} else {
/* advertise and publish */
_global_pos_pub = orb_advertise(ORB_ID(vehicle_global_position), &_global_pos);
} else {
/* advertise and publish */
_global_pos_pub = orb_advertise(ORB_ID(vehicle_global_position), &_global_pos);
}
}
if (hrt_elapsed_time(&_wind.timestamp) > 99000) {
src/modules/ekf_att_pos_estimator/estimator_22states.h
+1 -1
View File
@@ -312,7 +312,7 @@ public:
static void calcvelNED(float (&velNED)[3], float gpsCourse, float gpsGndSpd, float gpsVelD);
void calcposNED(float (&posNED)[3], double lat, double lon, float hgt, double latRef, double 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], double &lat, double &lon, float &hgt, double latRef, double lonRef, float hgtRef);