move takeoff state machine flight_mode_manager -> mc_pos_control

This commit is contained in:
Daniel Agar
2021-03-03 18:53:56 +01:00
committed by Matthias Grob
parent 823c6078d9
commit 266ea377da
20 changed files with 288 additions and 279 deletions
@@ -65,7 +65,6 @@ protected:
DEFINE_PARAMETERS_CUSTOM_PARENT(FlightTaskAuto,
(ParamFloat<px4::params::MPC_LAND_SPEED>) _param_mpc_land_speed,
(ParamFloat<px4::params::MPC_TILTMAX_LND>) _param_mpc_tiltmax_lnd,
(ParamInt<px4::params::MPC_LAND_RC_HELP>) _param_mpc_land_rc_help,
(ParamFloat<px4::params::MPC_LAND_ALT1>)
_param_mpc_land_alt1, // altitude at which speed limit downwards reaches maximum speed
@@ -6,7 +6,7 @@ constexpr uint64_t FlightTask::_timeout;
// First index of empty_setpoint corresponds to time-stamp and requires a finite number.
const vehicle_local_position_setpoint_s FlightTask::empty_setpoint = {0, NAN, NAN, NAN, NAN, NAN, NAN, NAN, NAN, {NAN, NAN, NAN}, {NAN, NAN, NAN}, {NAN, NAN, NAN}, {}};
const vehicle_constraints_s FlightTask::empty_constraints = {0, NAN, NAN, NAN, NAN, NAN, NAN, NAN, false, {}};
const vehicle_constraints_s FlightTask::empty_constraints = {0, NAN, NAN, NAN, {}};
const landing_gear_s FlightTask::empty_landing_gear_default_keep = {0, landing_gear_s::GEAR_KEEP, {}};
bool FlightTask::activate(const vehicle_local_position_setpoint_s &last_setpoint)
@@ -172,9 +172,6 @@ void FlightTask::_setDefaultConstraints()
_constraints.speed_xy = _param_mpc_xy_vel_max.get();
_constraints.speed_up = _param_mpc_z_vel_max_up.get();
_constraints.speed_down = _param_mpc_z_vel_max_dn.get();
_constraints.tilt = NAN;
_constraints.min_distance_to_ground = NAN;
_constraints.max_distance_to_ground = NAN;
_constraints.want_takeoff = false;
}
@@ -227,6 +227,9 @@ protected:
float _dist_to_bottom{}; /**< current height above ground level */
float _dist_to_ground{}; /**< equals _dist_to_bottom if valid, height above home otherwise */
float _min_distance_to_ground{-INFINITY}; /**< min distance to ground constraint */
float _max_distance_to_ground{INFINITY}; /**< max distance to ground constraint */
/**
* Setpoints which the position controller has to execute.
* Setpoints that are set to NAN are not controlled. Not all setpoints can be set at the same time.
@@ -81,17 +81,17 @@ bool FlightTaskManualAltitude::activate(const vehicle_local_position_setpoint_s
void FlightTaskManualAltitude::_updateConstraintsFromEstimator()
{
if (PX4_ISFINITE(_sub_vehicle_local_position.get().hagl_min)) {
_constraints.min_distance_to_ground = _sub_vehicle_local_position.get().hagl_min;
_min_distance_to_ground = _sub_vehicle_local_position.get().hagl_min;
} else {
_constraints.min_distance_to_ground = -INFINITY;
_min_distance_to_ground = -INFINITY;
}
if (PX4_ISFINITE(_sub_vehicle_local_position.get().hagl_max)) {
_constraints.max_distance_to_ground = _sub_vehicle_local_position.get().hagl_max;
_max_distance_to_ground = _sub_vehicle_local_position.get().hagl_max;
} else {
_constraints.max_distance_to_ground = INFINITY;
_max_distance_to_ground = INFINITY;
}
}
@@ -184,7 +184,7 @@ void FlightTaskManualAltitude::_updateAltitudeLock()
// Ensure that minimum altitude is respected if
// there is a distance sensor and distance to bottom is below minimum.
if (PX4_ISFINITE(_dist_to_bottom) && _dist_to_bottom < _constraints.min_distance_to_ground) {
if (PX4_ISFINITE(_dist_to_bottom) && _dist_to_bottom < _min_distance_to_ground) {
_terrainFollowing(apply_brake, stopped);
} else {
@@ -210,14 +210,10 @@ void FlightTaskManualAltitude::_updateAltitudeLock()
void FlightTaskManualAltitude::_respectMinAltitude()
{
const bool respectAlt = PX4_ISFINITE(_dist_to_bottom)
&& _dist_to_bottom < _constraints.min_distance_to_ground;
// Height above ground needs to be limited (flow / range-finder)
if (respectAlt) {
if (PX4_ISFINITE(_dist_to_bottom) && (_dist_to_bottom < _min_distance_to_ground)) {
// increase altitude to minimum flow distance
_position_setpoint(2) = _position(2)
- (_constraints.min_distance_to_ground - _dist_to_bottom);
_position_setpoint(2) = _position(2) - (_min_distance_to_ground - _dist_to_bottom);
}
}
@@ -253,8 +249,8 @@ void FlightTaskManualAltitude::_respectMaxAltitude()
// if there is a valid maximum distance to ground, linearly increase speed limit with distance
// below the maximum, preserving control loop vertical position error gain.
if (PX4_ISFINITE(_constraints.max_distance_to_ground)) {
_constraints.speed_up = math::constrain(_param_mpc_z_p.get() * (_constraints.max_distance_to_ground - _dist_to_bottom),
if (PX4_ISFINITE(_max_distance_to_ground)) {
_constraints.speed_up = math::constrain(_param_mpc_z_p.get() * (_max_distance_to_ground - _dist_to_bottom),
-_max_speed_down, _max_speed_up);
} else {
@@ -262,17 +258,16 @@ void FlightTaskManualAltitude::_respectMaxAltitude()
}
// if distance to bottom exceeded maximum distance, slowly approach maximum distance
if (_dist_to_bottom > _constraints.max_distance_to_ground) {
if (_dist_to_bottom > _max_distance_to_ground) {
// difference between current distance to ground and maximum distance to ground
const float delta_distance_to_max = _dist_to_bottom - _constraints.max_distance_to_ground;
const float delta_distance_to_max = _dist_to_bottom - _max_distance_to_ground;
// set position setpoint to maximum distance to ground
_position_setpoint(2) = _position(2) + delta_distance_to_max;
_position_setpoint(2) = _position(2) + delta_distance_to_max;
// limit speed downwards to 0.7m/s
_constraints.speed_down = math::min(_max_speed_down, 0.7f);
} else {
_constraints.speed_down = _max_speed_down;
}
}
}