diff options
Diffstat (limited to 'src/modules/fw_pos_control_l1')
-rw-r--r-- | src/modules/fw_pos_control_l1/fw_pos_control_l1_main.cpp | 187 | ||||
-rw-r--r-- | src/modules/fw_pos_control_l1/fw_pos_control_l1_params.c | 9 |
2 files changed, 104 insertions, 92 deletions
diff --git a/src/modules/fw_pos_control_l1/fw_pos_control_l1_main.cpp b/src/modules/fw_pos_control_l1/fw_pos_control_l1_main.cpp index 45fdaa355..7f13df785 100644 --- a/src/modules/fw_pos_control_l1/fw_pos_control_l1_main.cpp +++ b/src/modules/fw_pos_control_l1/fw_pos_control_l1_main.cpp @@ -130,23 +130,23 @@ private: int _att_sub; /**< vehicle attitude subscription */ int _attitude_sub; /**< raw rc channels data subscription */ int _airspeed_sub; /**< airspeed subscription */ - int _control_mode_sub; /**< vehicle status subscription */ + int _control_mode_sub; /**< vehicle status subscription */ 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 _sensor_combined_sub; /**< for body frame accelerations */ orb_advert_t _attitude_sp_pub; /**< attitude setpoint */ orb_advert_t _nav_capabilities_pub; /**< navigation capabilities publication */ - struct vehicle_attitude_s _att; /**< vehicle attitude */ - struct vehicle_attitude_setpoint_s _att_sp; /**< vehicle attitude setpoint */ - struct navigation_capabilities_s _nav_capabilities; /**< navigation capabilities */ - struct manual_control_setpoint_s _manual; /**< r/c channel data */ - struct airspeed_s _airspeed; /**< airspeed */ - struct vehicle_control_mode_s _control_mode; /**< vehicle status */ - 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 vehicle_attitude_s _att; /**< vehicle attitude */ + struct vehicle_attitude_setpoint_s _att_sp; /**< vehicle attitude setpoint */ + struct navigation_capabilities_s _nav_capabilities; /**< navigation capabilities */ + struct manual_control_setpoint_s _manual; /**< r/c channel data */ + struct airspeed_s _airspeed; /**< airspeed */ + struct vehicle_control_mode_s _control_mode; /**< vehicle status */ + 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 */ perf_counter_t _loop_perf; /**< loop performance counter */ @@ -154,13 +154,13 @@ private: /** manual control states */ float _seatbelt_hold_heading; /**< heading the system should hold in seatbelt mode */ - float _loiter_hold_lat; - float _loiter_hold_lon; + double _loiter_hold_lat; + double _loiter_hold_lon; float _loiter_hold_alt; bool _loiter_hold; - float _launch_lat; - float _launch_lon; + double _launch_lat; + double _launch_lon; float _launch_alt; bool _launch_valid; @@ -176,6 +176,8 @@ private: bool launch_detected; bool usePreTakeoffThrust; + bool last_manual; ///< true if the last iteration was in manual mode (used to determine when a reset is needed) + /* Landingslope object */ Landingslope landingslope; @@ -184,7 +186,7 @@ private: float target_bearing; /* Launch detection */ - LaunchDetector launchDetector; + launchdetection::LaunchDetector launchDetector; /* throttle and airspeed states */ float _airspeed_error; ///< airspeed error to setpoint in m/s @@ -192,7 +194,7 @@ private: uint64_t _airspeed_last_valid; ///< last time airspeed was valid. Used to detect sensor failures float _groundspeed_undershoot; ///< ground speed error to min. speed in m/s bool _global_pos_valid; ///< global position is valid - math::Matrix<3, 3> _R_nb; ///< current attitude + math::Matrix<3, 3> _R_nb; ///< current attitude ECL_L1_Pos_Controller _l1_control; TECS _tecs; @@ -233,7 +235,6 @@ private: float speedrate_p; float land_slope_angle; - float land_slope_length; float land_H1_virt; float land_flare_alt_relative; float land_thrust_lim_alt_relative; @@ -278,7 +279,6 @@ private: param_t speedrate_p; param_t land_slope_angle; - param_t land_slope_length; param_t land_H1_virt; param_t land_flare_alt_relative; param_t land_thrust_lim_alt_relative; @@ -346,6 +346,16 @@ private: * Main sensor collection task. */ void task_main() __attribute__((noreturn)); + + /* + * Reset takeoff state + */ + void reset_takeoff_state(); + + /* + * Reset landing state + */ + void reset_landing_state(); }; namespace l1_control @@ -362,6 +372,7 @@ FixedwingPositionControl *g_control; FixedwingPositionControl::FixedwingPositionControl() : + _mavlink_fd(-1), _task_should_exit(false), _control_task(-1), @@ -380,38 +391,34 @@ FixedwingPositionControl::FixedwingPositionControl() : /* performance counters */ _loop_perf(perf_alloc(PC_ELAPSED, "fw l1 control")), + /* states */ _setpoint_valid(false), _loiter_hold(false), - _airspeed_error(0.0f), - _airspeed_valid(false), - _groundspeed_undershoot(0.0f), - _global_pos_valid(false), land_noreturn_horizontal(false), land_noreturn_vertical(false), land_stayonground(false), land_motor_lim(false), land_onslope(false), + launch_detected(false), + last_manual(false), + usePreTakeoffThrust(false), flare_curve_alt_last(0.0f), - _mavlink_fd(-1), launchDetector(), - launch_detected(false), - usePreTakeoffThrust(false) + _airspeed_error(0.0f), + _airspeed_valid(false), + _groundspeed_undershoot(0.0f), + _global_pos_valid(false), + _att(), + _att_sp(), + _nav_capabilities(), + _manual(), + _airspeed(), + _control_mode(), + _global_pos(), + _pos_sp_triplet(), + _sensor_combined() { - /* safely initialize structs */ - vehicle_attitude_s _att = {0}; - vehicle_attitude_setpoint_s _att_sp = {0}; - navigation_capabilities_s _nav_capabilities = {0}; - manual_control_setpoint_s _manual = {0}; - airspeed_s _airspeed = {0}; - vehicle_control_mode_s _control_mode = {0}; - vehicle_global_position_s _global_pos = {0}; - position_setpoint_triplet_s _pos_sp_triplet = {0}; - sensor_combined_s _sensor_combined = {0}; - - - - _nav_capabilities.turn_distance = 0.0f; _parameter_handles.l1_period = param_find("FW_L1_PERIOD"); @@ -431,7 +438,6 @@ FixedwingPositionControl::FixedwingPositionControl() : _parameter_handles.throttle_land_max = param_find("FW_THR_LND_MAX"); _parameter_handles.land_slope_angle = param_find("FW_LND_ANG"); - _parameter_handles.land_slope_length = param_find("FW_LND_SLLR"); _parameter_handles.land_H1_virt = param_find("FW_LND_HVIRT"); _parameter_handles.land_flare_alt_relative = param_find("FW_LND_FLALT"); _parameter_handles.land_thrust_lim_alt_relative = param_find("FW_LND_TLALT"); @@ -520,7 +526,6 @@ FixedwingPositionControl::parameters_update() param_get(_parameter_handles.speedrate_p, &(_parameters.speedrate_p)); param_get(_parameter_handles.land_slope_angle, &(_parameters.land_slope_angle)); - param_get(_parameter_handles.land_slope_length, &(_parameters.land_slope_length)); param_get(_parameter_handles.land_H1_virt, &(_parameters.land_H1_virt)); param_get(_parameter_handles.land_flare_alt_relative, &(_parameters.land_flare_alt_relative)); param_get(_parameter_handles.land_thrust_lim_alt_relative, &(_parameters.land_thrust_lim_alt_relative)); @@ -587,8 +592,8 @@ FixedwingPositionControl::vehicle_control_mode_poll() orb_copy(ORB_ID(vehicle_control_mode), _control_mode_sub, &_control_mode); if (!was_armed && _control_mode.flag_armed) { - _launch_lat = _global_pos.lat / 1e7f; - _launch_lon = _global_pos.lon / 1e7f; + _launch_lat = _global_pos.lat; + _launch_lon = _global_pos.lon; _launch_alt = _global_pos.alt; _launch_valid = true; } @@ -703,7 +708,7 @@ void FixedwingPositionControl::calculate_gndspeed_undershoot(const math::Vector<2> ¤t_position, const math::Vector<2> &ground_speed, const struct position_setpoint_triplet_s &pos_sp_triplet) { - if (_global_pos_valid) { + if (_global_pos_valid && !(pos_sp_triplet.current.type == SETPOINT_TYPE_LOITER)) { /* rotate ground speed vector with current attitude */ math::Vector<2> yaw_vector(_R_nb(0, 0), _R_nb(1, 0)); @@ -889,8 +894,10 @@ FixedwingPositionControl::control_position(const math::Vector<2> ¤t_positi float airspeed_land = 1.3f * _parameters.airspeed_min; float airspeed_approach = 1.3f * _parameters.airspeed_min; - float L_wp_distance = get_distance_to_next_waypoint(prev_wp(0), prev_wp(1), curr_wp(0), curr_wp(1)) * _parameters.land_slope_length; + /* 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 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); @@ -916,7 +923,7 @@ FixedwingPositionControl::control_position(const math::Vector<2> ¤t_positi float flare_curve_alt = landingslope.getFlareCurveAltitudeSave(wp_distance, bearing_lastwp_currwp, bearing_airplane_currwp, _pos_sp_triplet.current.alt); /* avoid climbout */ - if (flare_curve_alt_last < flare_curve_alt && land_noreturn_vertical || land_stayonground) + if ((flare_curve_alt_last < flare_curve_alt && land_noreturn_vertical) || land_stayonground) { flare_curve_alt = pos_sp_triplet.current.alt; land_stayonground = true; @@ -935,38 +942,24 @@ FixedwingPositionControl::control_position(const math::Vector<2> ¤t_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; - - } else if (wp_distance < L_wp_distance) { - - /* minimize speed to approach speed, stay on landing slope */ - _tecs.update_pitch_throttle(_R_nb, _att.pitch, _global_pos.alt, landing_slope_alt_desired, calculate_target_airspeed(airspeed_approach), - _airspeed.indicated_airspeed_m_s, eas2tas, - false, flare_pitch_angle_rad, - _parameters.throttle_min, _parameters.throttle_max, _parameters.throttle_cruise, - math::radians(_parameters.pitch_limit_min), math::radians(_parameters.pitch_limit_max)); - //warnx("Landing: stay on slope, alt_desired: %.1f (wp_distance: %.1f), calculate_target_airspeed(airspeed_land) %.1f, horizontal_slope_displacement %.1f, d1 %.1f, flare_length %.1f", landing_slope_alt_desired, wp_distance, calculate_target_airspeed(airspeed_land), horizontal_slope_displacement, d1, flare_length); - - if (!land_onslope) { - - mavlink_log_info(_mavlink_fd, "#audio: Landing, on slope"); - land_onslope = true; - } - } else { /* intersect glide slope: - * 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 - * */ + * minimize speed to approach speed + * 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) { /* stay on slope */ altitude_desired = landing_slope_alt_desired; - //warnx("Landing: before L, stay on landing slope, alt_desired: %.1f (wp_distance: %.1f, L_wp_distance %.1f), calculate_target_airspeed(airspeed_land) %.1f, horizontal_slope_displacement %.1f", altitude_desired, wp_distance, L_wp_distance, calculate_target_airspeed(airspeed_land), horizontal_slope_displacement); + 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); - //warnx("Landing: before L,continue at: %.4f, (landing_slope_alt_desired %.4f, wp_distance: %.4f, L_altitude: %.4f L_wp_distance: %.4f)", altitude_desired, landing_slope_alt_desired, wp_distance, L_altitude, L_wp_distance); } _tecs.update_pitch_throttle(_R_nb, _att.pitch, _global_pos.alt, altitude_desired, calculate_target_airspeed(airspeed_approach), @@ -996,6 +989,7 @@ FixedwingPositionControl::control_position(const math::Vector<2> ¤t_positi } else { /* no takeoff detection --> fly */ launch_detected = true; + warnx("launchdetection off"); } } @@ -1042,19 +1036,14 @@ FixedwingPositionControl::control_position(const math::Vector<2> ¤t_positi // mission is active _loiter_hold = false; - /* reset land state */ + /* reset landing state */ if (pos_sp_triplet.current.type != SETPOINT_TYPE_LAND) { - land_noreturn_horizontal = false; - land_noreturn_vertical = false; - land_stayonground = false; - land_motor_lim = false; - land_onslope = false; + reset_landing_state(); } /* reset takeoff/launch state */ if (pos_sp_triplet.current.type != SETPOINT_TYPE_TAKEOFF) { - launch_detected = false; - usePreTakeoffThrust = false; + reset_takeoff_state(); } if (was_circle_mode && !_l1_control.circle_mode()) { @@ -1074,13 +1063,15 @@ FixedwingPositionControl::control_position(const math::Vector<2> ¤t_positi _seatbelt_hold_heading = _att.yaw + _manual.yaw; } - /* climb out control */ - bool climb_out = false; + //XXX not used - /* user wants to climb out */ - if (_manual.pitch > 0.3f && _manual.throttle > 0.8f) { - climb_out = true; - } + /* climb out control */ +// bool climb_out = false; +// +// /* user wants to climb out */ +// if (_manual.pitch > 0.3f && _manual.throttle > 0.8f) { +// climb_out = true; +// } /* if in seatbelt mode, set airspeed based on manual control */ @@ -1149,6 +1140,12 @@ FixedwingPositionControl::control_position(const math::Vector<2> ¤t_positi /* no flight mode applies, do not publish an attitude setpoint */ setpoint = false; + + /* reset landing and takeoff state */ + if (!last_manual) { + reset_landing_state(); + reset_takeoff_state(); + } } if (usePreTakeoffThrust) { @@ -1159,6 +1156,12 @@ FixedwingPositionControl::control_position(const math::Vector<2> ¤t_positi } _att_sp.pitch_body = _tecs.get_pitch_demand(); + if (_control_mode.flag_control_position_enabled) { + last_manual = false; + } else { + last_manual = true; + } + return setpoint; } @@ -1287,7 +1290,7 @@ FixedwingPositionControl::task_main() float turn_distance = _l1_control.switch_distance(100.0f); /* lazily publish navigation capabilities */ - if (turn_distance != _nav_capabilities.turn_distance && turn_distance > 0) { + if (fabsf(turn_distance - _nav_capabilities.turn_distance) > FLT_EPSILON && turn_distance > 0) { /* set new turn distance */ _nav_capabilities.turn_distance = turn_distance; @@ -1309,6 +1312,22 @@ FixedwingPositionControl::task_main() _exit(0); } +void FixedwingPositionControl::reset_takeoff_state() +{ + launch_detected = false; + usePreTakeoffThrust = false; + launchDetector.reset(); +} + +void FixedwingPositionControl::reset_landing_state() +{ + land_noreturn_horizontal = false; + land_noreturn_vertical = false; + land_stayonground = false; + land_motor_lim = false; + land_onslope = false; +} + int FixedwingPositionControl::start() { diff --git a/src/modules/fw_pos_control_l1/fw_pos_control_l1_params.c b/src/modules/fw_pos_control_l1/fw_pos_control_l1_params.c index 62a340e90..37f06dbe5 100644 --- a/src/modules/fw_pos_control_l1/fw_pos_control_l1_params.c +++ b/src/modules/fw_pos_control_l1/fw_pos_control_l1_params.c @@ -245,7 +245,7 @@ PARAM_DEFINE_FLOAT(FW_T_INTEG_GAIN, 0.1f); /** * Maximum vertical acceleration * - * This is the maximum vertical acceleration (in metres/second^2) + * This is the maximum vertical acceleration (in metres/second square) * either up or down that the controller will use to correct speed * or height errors. The default value of 7 m/s/s (equivalent to +- 0.7 g) * allows for reasonably aggressive pitch changes if required to recover @@ -349,13 +349,6 @@ PARAM_DEFINE_FLOAT(FW_T_SRATE_P, 0.05f); PARAM_DEFINE_FLOAT(FW_LND_ANG, 5.0f); /** - * Landing slope length - * - * @group L1 Control - */ -PARAM_DEFINE_FLOAT(FW_LND_SLLR, 0.9f); - -/** * * * @group L1 Control |