mirror of
https://github.com/PX4/PX4-Autopilot.git
synced 2026-05-25 00:31:36 +08:00
PositionControl: remove parameter dependency
to make the class easier to understand, more modular and easily unit testable
This commit is contained in:
@@ -43,9 +43,25 @@
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using namespace matrix;
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PositionControl::PositionControl(ModuleParams *parent) :
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ModuleParams(parent)
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{}
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void PositionControl::setVelocityGains(const Vector3f &P, const Vector3f &I, const Vector3f &D)
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{
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_gain_vel_p = P;
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_gain_vel_i = I;
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_gain_vel_d = D;
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}
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void PositionControl::setVelocityLimits(const float vel_horizontal, const float vel_up, const float vel_down)
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{
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_lim_vel_horizontal = vel_horizontal;
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_lim_vel_up = vel_up;
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_lim_vel_down = vel_down;
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}
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void PositionControl::setThrustLimits(const float min, const float max)
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{
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_lim_thr_min = min;
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_lim_thr_max = max;
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}
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void PositionControl::updateState(const PositionControlStates &states)
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{
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@@ -91,17 +107,17 @@ void PositionControl::generateThrustYawSetpoint(const float dt)
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// Limit the thrust vector.
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float thr_mag = _thr_sp.length();
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if (thr_mag > _param_mpc_thr_max.get()) {
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_thr_sp = _thr_sp.normalized() * _param_mpc_thr_max.get();
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if (thr_mag > _lim_thr_max) {
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_thr_sp = _thr_sp.normalized() * _lim_thr_max;
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} else if (thr_mag < _param_mpc_manthr_min.get() && thr_mag > FLT_EPSILON) {
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_thr_sp = _thr_sp.normalized() * _param_mpc_manthr_min.get();
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} else if (thr_mag < _lim_thr_min && thr_mag > FLT_EPSILON) {
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_thr_sp = _thr_sp.normalized() * _lim_thr_min;
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}
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// Just set the set-points equal to the current vehicle state.
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_pos_sp = _pos;
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_vel_sp = _vel;
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_acc_sp = _acc;
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_acc_sp = _vel_dot;
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} else {
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_positionController();
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@@ -204,7 +220,7 @@ bool PositionControl::_interfaceMapping()
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_thr_sp(0) = _thr_sp(1) = 0.0f;
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// throttle down such that vehicle goes down with
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// 70% of throttle range between min and hover
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_thr_sp(2) = -(_param_mpc_thr_min.get() + (_param_mpc_thr_hover.get() - _param_mpc_thr_min.get()) * 0.7f);
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_thr_sp(2) = -(_lim_thr_min + (_hover_thrust - _lim_thr_min) * 0.7f);
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// position and velocity control-loop is currently unused (flag only for logging purpose)
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_setCtrlFlag(false);
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}
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@@ -215,14 +231,13 @@ bool PositionControl::_interfaceMapping()
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void PositionControl::_positionController()
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{
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// P-position controller
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const Vector3f vel_sp_position = (_pos_sp - _pos).emult(Vector3f(_param_mpc_xy_p.get(), _param_mpc_xy_p.get(),
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_param_mpc_z_p.get()));
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const Vector3f vel_sp_position = (_pos_sp - _pos).emult(_gain_pos_p);
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_vel_sp = vel_sp_position + _vel_sp;
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// Constrain horizontal velocity by prioritizing the velocity component along the
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// the desired position setpoint over the feed-forward term.
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const Vector2f vel_sp_xy = ControlMath::constrainXY(Vector2f(vel_sp_position),
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Vector2f(_vel_sp - vel_sp_position), _param_mpc_xy_vel_max.get());
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Vector2f(_vel_sp - vel_sp_position), _lim_vel_horizontal);
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_vel_sp(0) = vel_sp_xy(0);
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_vel_sp(1) = vel_sp_xy(1);
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// Constrain velocity in z-direction.
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@@ -258,12 +273,12 @@ void PositionControl::_velocityController(const float &dt)
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const Vector3f vel_err = _vel_sp - _vel;
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// Consider thrust in D-direction.
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float thrust_desired_D = _param_mpc_z_vel_p.get() * vel_err(2) + _param_mpc_z_vel_d.get() * _vel_dot(2) + _thr_int(
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2) - _param_mpc_thr_hover.get();
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float thrust_desired_D = _gain_vel_p(2) * vel_err(2) + _gain_vel_d(2) * _vel_dot(2) + _thr_int(
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2) - _hover_thrust;
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// The Thrust limits are negated and swapped due to NED-frame.
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float uMax = -_param_mpc_thr_min.get();
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float uMin = -_param_mpc_thr_max.get();
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float uMax = -_lim_thr_min;
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float uMin = -_lim_thr_max;
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// make sure there's always enough thrust vector length to infer the attitude
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uMax = math::min(uMax, -10e-4f);
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@@ -273,14 +288,15 @@ void PositionControl::_velocityController(const float &dt)
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(thrust_desired_D <= uMin && vel_err(2) <= 0.0f);
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if (!stop_integral_D) {
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_thr_int(2) += vel_err(2) * _param_mpc_z_vel_i.get() * dt;
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_thr_int(2) += vel_err(2) * _gain_vel_i(2) * dt;
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// limit thrust integral
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_thr_int(2) = math::min(fabsf(_thr_int(2)), _param_mpc_thr_max.get()) * math::sign(_thr_int(2));
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_thr_int(2) = math::min(fabsf(_thr_int(2)), _lim_thr_max) * math::sign(_thr_int(2));
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}
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// Saturate thrust setpoint in D-direction.
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_thr_sp(2) = math::constrain(thrust_desired_D, uMin, uMax);
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printf("%.3f %.3f\n", (double)uMin, (double)uMax);
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if (PX4_ISFINITE(_thr_sp(0)) && PX4_ISFINITE(_thr_sp(1))) {
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// Thrust set-point in NE-direction is already provided. Only
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@@ -292,12 +308,13 @@ void PositionControl::_velocityController(const float &dt)
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} else {
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// PID-velocity controller for NE-direction.
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Vector2f thrust_desired_NE;
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thrust_desired_NE(0) = _param_mpc_xy_vel_p.get() * vel_err(0) + _param_mpc_xy_vel_d.get() * _vel_dot(0) + _thr_int(0);
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thrust_desired_NE(1) = _param_mpc_xy_vel_p.get() * vel_err(1) + _param_mpc_xy_vel_d.get() * _vel_dot(1) + _thr_int(1);
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thrust_desired_NE(0) = _gain_vel_p(0) * vel_err(0) + _gain_vel_d(0) * _vel_dot(0) + _thr_int(0);
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thrust_desired_NE(1) = _gain_vel_p(1) * vel_err(1) + _gain_vel_d(1) * _vel_dot(1) + _thr_int(1);
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// Get maximum allowed thrust in NE based on tilt and excess thrust.
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float thrust_max_NE_tilt = fabsf(_thr_sp(2)) * tanf(_constraints.tilt);
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float thrust_max_NE = sqrtf(_param_mpc_thr_max.get() * _param_mpc_thr_max.get() - _thr_sp(2) * _thr_sp(2));
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float thrust_max_NE = sqrtf(_lim_thr_max * _lim_thr_max - _thr_sp(2) * _thr_sp(2));
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printf("%.3f %.3f\n", (double)(_lim_thr_max), (double)(_thr_sp(2)));
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thrust_max_NE = math::min(thrust_max_NE_tilt, thrust_max_NE);
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// Saturate thrust in NE-direction.
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@@ -312,15 +329,15 @@ void PositionControl::_velocityController(const float &dt)
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// Use tracking Anti-Windup for NE-direction: during saturation, the integrator is used to unsaturate the output
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// see Anti-Reset Windup for PID controllers, L.Rundqwist, 1990
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float arw_gain = 2.f / _param_mpc_xy_vel_p.get();
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float arw_gain = 2.f / _gain_vel_p(0);
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Vector2f vel_err_lim;
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vel_err_lim(0) = vel_err(0) - (thrust_desired_NE(0) - _thr_sp(0)) * arw_gain;
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vel_err_lim(1) = vel_err(1) - (thrust_desired_NE(1) - _thr_sp(1)) * arw_gain;
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// Update integral
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_thr_int(0) += _param_mpc_xy_vel_i.get() * vel_err_lim(0) * dt;
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_thr_int(1) += _param_mpc_xy_vel_i.get() * vel_err_lim(1) * dt;
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_thr_int(0) += _gain_vel_i(0) * vel_err_lim(0) * dt;
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_thr_int(1) += _gain_vel_i(1) * vel_err_lim(1) * dt;
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}
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}
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@@ -331,23 +348,21 @@ void PositionControl::updateConstraints(const vehicle_constraints_s &constraints
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// For safety check if adjustable constraints are below global constraints. If they are not stricter than global
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// constraints, then just use global constraints for the limits.
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const float tilt_max_radians = math::radians(math::max(_param_mpc_tiltmax_air.get(), _param_mpc_man_tilt_max.get()));
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if (!PX4_ISFINITE(constraints.tilt)
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|| !(constraints.tilt < tilt_max_radians)) {
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_constraints.tilt = tilt_max_radians;
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|| !(constraints.tilt < _lim_tilt)) {
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_constraints.tilt = _lim_tilt;
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}
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if (!PX4_ISFINITE(constraints.speed_up) || !(constraints.speed_up < _param_mpc_z_vel_max_up.get())) {
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_constraints.speed_up = _param_mpc_z_vel_max_up.get();
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if (!PX4_ISFINITE(constraints.speed_up) || !(constraints.speed_up < _lim_vel_up)) {
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_constraints.speed_up = _lim_vel_up;
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}
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if (!PX4_ISFINITE(constraints.speed_down) || !(constraints.speed_down < _param_mpc_z_vel_max_dn.get())) {
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_constraints.speed_down = _param_mpc_z_vel_max_dn.get();
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if (!PX4_ISFINITE(constraints.speed_down) || !(constraints.speed_down < _lim_vel_down)) {
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_constraints.speed_down = _lim_vel_down;
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}
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if (!PX4_ISFINITE(constraints.speed_xy) || !(constraints.speed_xy < _param_mpc_xy_vel_max.get())) {
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_constraints.speed_xy = _param_mpc_xy_vel_max.get();
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if (!PX4_ISFINITE(constraints.speed_xy) || !(constraints.speed_xy < _lim_vel_horizontal)) {
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_constraints.speed_xy = _lim_vel_horizontal;
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}
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}
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@@ -370,8 +385,3 @@ void PositionControl::getAttitudeSetpoint(vehicle_attitude_setpoint_s &attitude_
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ControlMath::thrustToAttitude(_thr_sp, _yaw_sp, attitude_setpoint);
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attitude_setpoint.yaw_sp_move_rate = _yawspeed_sp;
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}
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void PositionControl::updateParams()
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{
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ModuleParams::updateParams();
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}
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@@ -37,14 +37,13 @@
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* A cascaded position controller for position/velocity control only.
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*/
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#include <matrix/matrix/math.hpp>
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#pragma once
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#include <matrix/matrix/math.hpp>
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#include <uORB/topics/vehicle_attitude_setpoint.h>
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#include <uORB/topics/vehicle_constraints.h>
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#include <uORB/topics/vehicle_local_position.h>
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#include <uORB/topics/vehicle_local_position_setpoint.h>
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#include <uORB/topics/vehicle_constraints.h>
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#include <px4_platform_common/module_params.h>
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#pragma once
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struct PositionControlStates {
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matrix::Vector3f position;
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@@ -73,20 +72,53 @@ struct PositionControlStates {
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* If there is a position/velocity- and thrust-setpoint present, then
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* the thrust-setpoint is ommitted and recomputed from position-velocity-PID-loop.
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*/
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class PositionControl : public ModuleParams
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class PositionControl
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{
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public:
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PositionControl(ModuleParams *parent);
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PositionControl() = default;
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~PositionControl() = default;
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/**
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* Overwrites certain parameters.
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* Overwrites are required for unit-conversion.
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* This method should only be called if parameters
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* have been updated.
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* Set the position control gains
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* @param P 3D vector of proportional gains for x,y,z axis
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*/
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void overwriteParams();
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void setPositionGains(const matrix::Vector3f &P) { _gain_pos_p = P; }
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/**
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* Set the velocity control gains
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* @param P 3D vector of proportional gains for x,y,z axis
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* @param I 3D vector of integral gains
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* @param D 3D vector of derivative gains
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*/
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void setVelocityGains(const matrix::Vector3f &P, const matrix::Vector3f &I, const matrix::Vector3f &D);
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/**
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* Set the maximum velocity to execute with feed forward and position control
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* @param vel_horizontal horizontal velocity limit
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* @param vel_up upwards velocity limit
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* @param vel_down downwards velocity limit
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*/
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void setVelocityLimits(const float vel_horizontal, const float vel_up, float vel_down);
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/**
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* Set the minimum and maximum collective normalized thrust [0,1] that can be output by the controller
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* @param min minimum thrust e.g. 0.1 or 0
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* @param max maximum thrust e.g. 0.9 or 1
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*/
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void setThrustLimits(const float min, const float max);
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/**
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* Set the maximum tilt angle in radians the output attitude is allowed to have
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* @param tilt angle from level orientation in radians
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*/
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void setTiltLimit(const float tilt) { _lim_tilt = tilt; }
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/**
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* Set the maximum tilt angle in radians the output attitude is allowed to have
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* @param thrust [0,1] with which the vehicle hovers not aacelerating down or up with level orientation
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*/
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void setHoverThrust(const float thrust) { _hover_thrust = thrust; }
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/**
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* Update the current vehicle state.
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@@ -166,10 +198,6 @@ public:
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*/
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void getAttitudeSetpoint(vehicle_attitude_setpoint_s &attitude_setpoint) const;
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protected:
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void updateParams() override;
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private:
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/**
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* Maps setpoints to internal-setpoints.
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@@ -181,42 +209,40 @@ private:
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void _velocityController(const float &dt); /** applies the PID-velocity-controller */
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void _setCtrlFlag(bool value); /**< set control-loop flags (only required for logging) */
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matrix::Vector3f _pos{}; /**< MC position */
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matrix::Vector3f _vel{}; /**< MC velocity */
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matrix::Vector3f _vel_dot{}; /**< MC velocity derivative */
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matrix::Vector3f _acc{}; /**< MC acceleration */
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float _yaw{0.0f}; /**< MC yaw */
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matrix::Vector3f _pos_sp{}; /**< desired position */
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matrix::Vector3f _vel_sp{}; /**< desired velocity */
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matrix::Vector3f _acc_sp{}; /**< desired acceleration: not supported yet */
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matrix::Vector3f _thr_sp{}; /**< desired thrust */
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// Gains
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matrix::Vector3f _gain_pos_p; ///< Position control proportional gain
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matrix::Vector3f _gain_vel_p; ///< Velocity control proportional gain
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matrix::Vector3f _gain_vel_i; ///< Velocity control integral gain
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matrix::Vector3f _gain_vel_d; ///< Velocity control derivative gain
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// Limits
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float _lim_vel_horizontal{0}; ///< Horizontal velocity limit with feed forward and position control
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float _lim_vel_up{0}; ///< Upwards velocity limit with feed forward and position control
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float _lim_vel_down{0}; ///< Downwards velocity limit with feed forward and position control
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float _lim_thr_min{0}; ///< Minimum collective thrust allowed as output [-1,0] e.g. -0.9
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float _lim_thr_max{0}; ///< Maximum collective thrust allowed as output [-1,0] e.g. -0.1
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float _lim_tilt{0}; ///< Maximum tilt from level the output attitude is allowed to have
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float _hover_thrust{0}; ///< Thrust [0,1] with which the vehicle hovers not aacelerating down or up with level orientation
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// States
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matrix::Vector3f _pos; /**< position */
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matrix::Vector3f _vel; /**< velocity */
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matrix::Vector3f _vel_dot; /**< velocity derivative (replacement for acceleration estimate) */
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matrix::Vector3f _thr_int; /**< integral term of the velocity controller */
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float _yaw = 0.0f; /**< yaw */
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vehicle_constraints_s _constraints{}; /**< variable constraints */
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// Setpoints
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matrix::Vector3f _pos_sp; /**< desired position */
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matrix::Vector3f _vel_sp; /**< desired velocity */
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matrix::Vector3f _acc_sp; /**< desired acceleration */
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matrix::Vector3f _thr_sp; /**< desired thrust */
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float _yaw_sp{}; /**< desired yaw */
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float _yawspeed_sp{}; /** desired yaw-speed */
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matrix::Vector3f _thr_int{}; /**< thrust integral term */
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vehicle_constraints_s _constraints{}; /**< variable constraints */
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bool _skip_controller{false}; /**< skips position/velocity controller. true for stabilized mode */
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bool _ctrl_pos[3] = {true, true, true}; /**< True if the control-loop for position was used */
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bool _ctrl_vel[3] = {true, true, true}; /**< True if the control-loop for velocity was used */
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DEFINE_PARAMETERS(
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(ParamFloat<px4::params::MPC_THR_MAX>) _param_mpc_thr_max,
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(ParamFloat<px4::params::MPC_THR_HOVER>) _param_mpc_thr_hover,
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(ParamFloat<px4::params::MPC_THR_MIN>) _param_mpc_thr_min,
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(ParamFloat<px4::params::MPC_MANTHR_MIN>) _param_mpc_manthr_min,
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(ParamFloat<px4::params::MPC_XY_VEL_MAX>) _param_mpc_xy_vel_max,
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(ParamFloat<px4::params::MPC_Z_VEL_MAX_DN>) _param_mpc_z_vel_max_dn,
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(ParamFloat<px4::params::MPC_Z_VEL_MAX_UP>) _param_mpc_z_vel_max_up,
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(ParamFloat<px4::params::MPC_TILTMAX_AIR>)
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_param_mpc_tiltmax_air, // maximum tilt for any position controlled mode in degrees
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(ParamFloat<px4::params::MPC_MAN_TILT_MAX>)
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_param_mpc_man_tilt_max, // maximum til for stabilized/altitude mode in degrees
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(ParamFloat<px4::params::MPC_Z_P>) _param_mpc_z_p,
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(ParamFloat<px4::params::MPC_Z_VEL_P>) _param_mpc_z_vel_p,
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(ParamFloat<px4::params::MPC_Z_VEL_I>) _param_mpc_z_vel_i,
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(ParamFloat<px4::params::MPC_Z_VEL_D>) _param_mpc_z_vel_d,
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(ParamFloat<px4::params::MPC_XY_P>) _param_mpc_xy_p,
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(ParamFloat<px4::params::MPC_XY_VEL_P>) _param_mpc_xy_vel_p,
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(ParamFloat<px4::params::MPC_XY_VEL_I>) _param_mpc_xy_vel_i,
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(ParamFloat<px4::params::MPC_XY_VEL_D>) _param_mpc_xy_vel_d
|
||||
)
|
||||
};
|
||||
|
||||
@@ -146,24 +146,36 @@ private:
|
||||
int8_t _old_landing_gear_position{landing_gear_s::GEAR_KEEP};
|
||||
|
||||
DEFINE_PARAMETERS(
|
||||
(ParamFloat<px4::params::MPC_TKO_RAMP_T>) _param_mpc_tko_ramp_t, /**< time constant for smooth takeoff ramp */
|
||||
// Position Control
|
||||
(ParamFloat<px4::params::MPC_XY_P>) _param_mpc_xy_p,
|
||||
(ParamFloat<px4::params::MPC_Z_P>) _param_mpc_z_p,
|
||||
(ParamFloat<px4::params::MPC_XY_VEL_P>) _param_mpc_xy_vel_p,
|
||||
(ParamFloat<px4::params::MPC_XY_VEL_I>) _param_mpc_xy_vel_i,
|
||||
(ParamFloat<px4::params::MPC_XY_VEL_D>) _param_mpc_xy_vel_d,
|
||||
(ParamFloat<px4::params::MPC_Z_VEL_P>) _param_mpc_z_vel_p,
|
||||
(ParamFloat<px4::params::MPC_Z_VEL_I>) _param_mpc_z_vel_i,
|
||||
(ParamFloat<px4::params::MPC_Z_VEL_D>) _param_mpc_z_vel_d,
|
||||
(ParamFloat<px4::params::MPC_XY_VEL_MAX>) _param_mpc_xy_vel_max,
|
||||
(ParamFloat<px4::params::MPC_VEL_MANUAL>) _param_mpc_vel_manual,
|
||||
(ParamFloat<px4::params::MPC_XY_CRUISE>) _param_mpc_xy_cruise,
|
||||
(ParamFloat<px4::params::MPC_Z_VEL_MAX_UP>) _param_mpc_z_vel_max_up,
|
||||
(ParamFloat<px4::params::MPC_Z_VEL_MAX_DN>) _param_mpc_z_vel_max_dn,
|
||||
(ParamFloat<px4::params::MPC_LAND_SPEED>) _param_mpc_land_speed,
|
||||
(ParamFloat<px4::params::MPC_TILTMAX_AIR>) _param_mpc_tiltmax_air,
|
||||
(ParamFloat<px4::params::MPC_THR_HOVER>) _param_mpc_thr_hover,
|
||||
|
||||
// Takeoff / Land
|
||||
(ParamFloat<px4::params::MPC_SPOOLUP_TIME>) _param_mpc_spoolup_time, /**< time to let motors spool up after arming */
|
||||
(ParamFloat<px4::params::MPC_TKO_RAMP_T>) _param_mpc_tko_ramp_t, /**< time constant for smooth takeoff ramp */
|
||||
(ParamFloat<px4::params::MPC_TKO_SPEED>) _param_mpc_tko_speed,
|
||||
(ParamFloat<px4::params::MPC_LAND_SPEED>) _param_mpc_land_speed,
|
||||
|
||||
(ParamFloat<px4::params::MPC_VEL_MANUAL>) _param_mpc_vel_manual,
|
||||
(ParamFloat<px4::params::MPC_XY_CRUISE>) _param_mpc_xy_cruise,
|
||||
(ParamFloat<px4::params::MPC_LAND_ALT2>) _param_mpc_land_alt2, /**< downwards speed limited below this altitude */
|
||||
(ParamInt<px4::params::MPC_POS_MODE>) _param_mpc_pos_mode,
|
||||
(ParamInt<px4::params::MPC_AUTO_MODE>) _param_mpc_auto_mode,
|
||||
(ParamInt<px4::params::MPC_ALT_MODE>) _param_mpc_alt_mode,
|
||||
(ParamFloat<px4::params::MPC_SPOOLUP_TIME>) _param_mpc_spoolup_time, /**< time to let motors spool up after arming */
|
||||
(ParamFloat<px4::params::MPC_TILTMAX_LND>) _param_mpc_tiltmax_lnd, /**< maximum tilt for landing and smooth takeoff */
|
||||
(ParamFloat<px4::params::MPC_THR_MIN>)_param_mpc_thr_min,
|
||||
(ParamFloat<px4::params::MPC_THR_HOVER>)_param_mpc_thr_hover,
|
||||
(ParamFloat<px4::params::MPC_THR_MAX>)_param_mpc_thr_max,
|
||||
(ParamFloat<px4::params::MPC_Z_VEL_P>)_param_mpc_z_vel_p
|
||||
(ParamFloat<px4::params::MPC_THR_MIN>) _param_mpc_thr_min,
|
||||
(ParamFloat<px4::params::MPC_THR_MAX>) _param_mpc_thr_max
|
||||
);
|
||||
|
||||
control::BlockDerivative _vel_x_deriv; /**< velocity derivative in x */
|
||||
@@ -275,7 +287,6 @@ MulticopterPositionControl::MulticopterPositionControl() :
|
||||
_vel_x_deriv(this, "VELD"),
|
||||
_vel_y_deriv(this, "VELD"),
|
||||
_vel_z_deriv(this, "VELD"),
|
||||
_control(this),
|
||||
_cycle_perf(perf_alloc_once(PC_ELAPSED, MODULE_NAME": cycle time"))
|
||||
{
|
||||
// fetch initial parameter values
|
||||
@@ -331,6 +342,15 @@ MulticopterPositionControl::parameters_update(bool force)
|
||||
ModuleParams::updateParams();
|
||||
SuperBlock::updateParams();
|
||||
|
||||
_control.setPositionGains(Vector3f(_param_mpc_xy_p.get(), _param_mpc_xy_p.get(), _param_mpc_z_p.get()));
|
||||
_control.setVelocityGains(Vector3f(_param_mpc_xy_vel_p.get(), _param_mpc_xy_vel_p.get(), _param_mpc_z_vel_p.get()),
|
||||
Vector3f(_param_mpc_xy_vel_i.get(), _param_mpc_xy_vel_i.get(), _param_mpc_z_vel_i.get()),
|
||||
Vector3f(_param_mpc_xy_vel_d.get(), _param_mpc_xy_vel_d.get(), _param_mpc_z_vel_d.get()));
|
||||
_control.setVelocityLimits(_param_mpc_xy_vel_max.get(), _param_mpc_z_vel_max_up.get(), _param_mpc_z_vel_max_dn.get());
|
||||
_control.setThrustLimits(_param_mpc_thr_min.get(), _param_mpc_thr_max.get());
|
||||
_control.setTiltLimit(M_DEG_TO_RAD_F * _param_mpc_tiltmax_air.get()); // convert to radians!
|
||||
_control.setHoverThrust(_param_mpc_thr_hover.get());
|
||||
|
||||
// Check that the design parameters are inside the absolute maximum constraints
|
||||
if (_param_mpc_xy_cruise.get() > _param_mpc_xy_vel_max.get()) {
|
||||
_param_mpc_xy_cruise.set(_param_mpc_xy_vel_max.get());
|
||||
|
||||
Reference in New Issue
Block a user