Exemplo n.º 1
0
void
RTL::set_rtl_item()
{
	struct position_setpoint_triplet_s *pos_sp_triplet = _navigator->get_position_setpoint_triplet();

	/* make sure we have the latest params */
	updateParams();

	if (!_rtl_start_lock) {
		set_previous_pos_setpoint();
	}

	_navigator->set_can_loiter_at_sp(false);

	switch (_rtl_state) {
	case RTL_STATE_CLIMB: {
			float climb_alt = _navigator->get_home_position()->alt + _param_return_alt.get();

			_mission_item.lat = _navigator->get_global_position()->lat;
			_mission_item.lon = _navigator->get_global_position()->lon;
			_mission_item.altitude_is_relative = false;
			_mission_item.altitude = climb_alt;
			_mission_item.yaw = NAN;
			_mission_item.loiter_radius = _navigator->get_loiter_radius();
			_mission_item.nav_cmd = NAV_CMD_WAYPOINT;
			_mission_item.acceptance_radius = _navigator->get_acceptance_radius();
			_mission_item.time_inside = 0.0f;
			_mission_item.autocontinue = true;
			_mission_item.origin = ORIGIN_ONBOARD;

			mavlink_log_info(_navigator->get_mavlink_log_pub(), "RTL: climb to %d m (%d m above home)",
					 (int)(climb_alt),
					 (int)(climb_alt - _navigator->get_home_position()->alt));
			break;
		}

	case RTL_STATE_RETURN: {
			_mission_item.lat = _navigator->get_home_position()->lat;
			_mission_item.lon = _navigator->get_home_position()->lon;
			// don't change altitude

			// use home yaw if close to home
			/* check if we are pretty close to home already */
			float home_dist = get_distance_to_next_waypoint(_navigator->get_home_position()->lat,
					  _navigator->get_home_position()->lon,
					  _navigator->get_global_position()->lat, _navigator->get_global_position()->lon);

			if (home_dist < _param_rtl_min_dist.get()) {
				_mission_item.yaw = _navigator->get_home_position()->yaw;

			} else {
				if (pos_sp_triplet->previous.valid) {
					/* if previous setpoint is valid then use it to calculate heading to home */
					_mission_item.yaw = get_bearing_to_next_waypoint(
								    pos_sp_triplet->previous.lat, pos_sp_triplet->previous.lon,
								    _mission_item.lat, _mission_item.lon);

				} else {
					/* else use current position */
					_mission_item.yaw = get_bearing_to_next_waypoint(
								    _navigator->get_global_position()->lat, _navigator->get_global_position()->lon,
								    _mission_item.lat, _mission_item.lon);
				}
			}

			_mission_item.loiter_radius = _navigator->get_loiter_radius();
			_mission_item.nav_cmd = NAV_CMD_WAYPOINT;
			_mission_item.acceptance_radius = _navigator->get_acceptance_radius();
			_mission_item.time_inside = 0.0f;
			_mission_item.autocontinue = true;
			_mission_item.origin = ORIGIN_ONBOARD;

			mavlink_log_info(_navigator->get_mavlink_log_pub(), "RTL: return at %d m (%d m above home)",
					 (int)(_mission_item.altitude),
					 (int)(_mission_item.altitude - _navigator->get_home_position()->alt));

			_rtl_start_lock = true;
			break;
		}

	case RTL_STATE_TRANSITION_TO_MC: {
			_mission_item.nav_cmd = NAV_CMD_DO_VTOL_TRANSITION;
			_mission_item.params[0] = vtol_vehicle_status_s::VEHICLE_VTOL_STATE_MC;
			break;
		}

	case RTL_STATE_DESCEND: {
			_mission_item.lat = _navigator->get_home_position()->lat;
			_mission_item.lon = _navigator->get_home_position()->lon;
			_mission_item.altitude_is_relative = false;
			_mission_item.altitude = _navigator->get_home_position()->alt + _param_descend_alt.get();

			// check if we are already lower - then we will just stay there
			if (_mission_item.altitude > _navigator->get_global_position()->alt) {
				_mission_item.altitude = _navigator->get_global_position()->alt;
			}

			_mission_item.yaw = _navigator->get_home_position()->yaw;

			// except for vtol which might be still off here and should point towards this location
			float d_current = get_distance_to_next_waypoint(
						  _navigator->get_global_position()->lat, _navigator->get_global_position()->lon,
						  _mission_item.lat, _mission_item.lon);

			if (_navigator->get_vstatus()->is_vtol && d_current > _navigator->get_acceptance_radius()) {
				_mission_item.yaw = get_bearing_to_next_waypoint(
							    _navigator->get_global_position()->lat, _navigator->get_global_position()->lon,
							    _mission_item.lat, _mission_item.lon);
			}

			_mission_item.loiter_radius = _navigator->get_loiter_radius();
			_mission_item.nav_cmd = NAV_CMD_WAYPOINT;
			_mission_item.acceptance_radius = _navigator->get_acceptance_radius();
			_mission_item.time_inside = 0.0f;
			_mission_item.autocontinue = false;
			_mission_item.origin = ORIGIN_ONBOARD;

			/* disable previous setpoint to prevent drift */
			pos_sp_triplet->previous.valid = false;

			mavlink_log_info(_navigator->get_mavlink_log_pub(), "RTL: descend to %d m (%d m above home)",
					 (int)(_mission_item.altitude),
					 (int)(_mission_item.altitude - _navigator->get_home_position()->alt));
			break;
		}

	case RTL_STATE_LOITER: {
			bool autoland = _param_land_delay.get() > -DELAY_SIGMA;

			_mission_item.lat = _navigator->get_home_position()->lat;
			_mission_item.lon = _navigator->get_home_position()->lon;
			// don't change altitude
			_mission_item.yaw = _navigator->get_home_position()->yaw;
			_mission_item.loiter_radius = _navigator->get_loiter_radius();
			_mission_item.nav_cmd = autoland ? NAV_CMD_LOITER_TIME_LIMIT : NAV_CMD_LOITER_UNLIMITED;
			_mission_item.acceptance_radius = _navigator->get_acceptance_radius();
			_mission_item.time_inside = _param_land_delay.get() < 0.0f ? 0.0f : _param_land_delay.get();
			_mission_item.autocontinue = autoland;
			_mission_item.origin = ORIGIN_ONBOARD;

			_navigator->set_can_loiter_at_sp(true);

			if (autoland && (Navigator::get_time_inside(_mission_item) > FLT_EPSILON)) {
				mavlink_log_info(_navigator->get_mavlink_log_pub(), "RTL: loiter %.1fs",
						 (double)Navigator::get_time_inside(_mission_item));

			} else {
				mavlink_log_info(_navigator->get_mavlink_log_pub(), "RTL: completed, loiter");
			}

			break;
		}

	case RTL_STATE_LAND: {
			_mission_item.yaw = _navigator->get_home_position()->yaw;
			set_land_item(&_mission_item, false);

			mavlink_log_info(_navigator->get_mavlink_log_pub(), "RTL: land at home");
			break;
		}

	case RTL_STATE_LANDED: {
			set_idle_item(&_mission_item);

			mavlink_log_info(_navigator->get_mavlink_log_pub(), "RTL: completed, landed");
			break;
		}

	default:
		break;
	}

	reset_mission_item_reached();

	/* execute command if set */
	if (!item_contains_position(&_mission_item)) {
		issue_command(&_mission_item);
	}

	/* convert mission item to current position setpoint and make it valid */
	mission_item_to_position_setpoint(&_mission_item, &pos_sp_triplet->current);
	pos_sp_triplet->next.valid = false;

	_navigator->set_position_setpoint_triplet_updated();
}
Exemplo n.º 2
0
void
RTL::set_rtl_item()
{
	struct position_setpoint_triplet_s *pos_sp_triplet = _navigator->get_position_setpoint_triplet();

	/* make sure we have the latest params */
	updateParams();

	if (!_rtl_start_lock) {
		set_previous_pos_setpoint();
	}

	_navigator->set_can_loiter_at_sp(false);

	switch (_rtl_state) {
	case RTL_STATE_CLIMB: {
		float climb_alt = _navigator->get_home_position()->alt + _param_return_alt.get();

		_mission_item.lat = _navigator->get_global_position()->lat;
		_mission_item.lon = _navigator->get_global_position()->lon;
		_mission_item.altitude_is_relative = false;
		_mission_item.altitude = climb_alt;
		_mission_item.yaw = NAN;
		_mission_item.loiter_radius = _navigator->get_loiter_radius();
		_mission_item.loiter_direction = 1;
		_mission_item.nav_cmd = NAV_CMD_WAYPOINT;
		_mission_item.acceptance_radius = _navigator->get_acceptance_radius();
		_mission_item.time_inside = 0.0f;
		_mission_item.pitch_min = 0.0f;
		_mission_item.autocontinue = true;
		_mission_item.origin = ORIGIN_ONBOARD;

		mavlink_log_critical(_navigator->get_mavlink_log_pub(), "RTL: climb to %d m (%d m above home)",
			(int)(climb_alt),
			(int)(climb_alt - _navigator->get_home_position()->alt));
		break;
	}

	case RTL_STATE_RETURN: {
		_mission_item.lat = _navigator->get_home_position()->lat;
		_mission_item.lon = _navigator->get_home_position()->lon;
		 // don't change altitude

		 if (pos_sp_triplet->previous.valid) {
		 	/* if previous setpoint is valid then use it to calculate heading to home */
		 	_mission_item.yaw = get_bearing_to_next_waypoint(
		 	        pos_sp_triplet->previous.lat, pos_sp_triplet->previous.lon,
		 	        _mission_item.lat, _mission_item.lon);

		 } else {
		 	/* else use current position */
		 	_mission_item.yaw = get_bearing_to_next_waypoint(
		 	        _navigator->get_global_position()->lat, _navigator->get_global_position()->lon,
		 	        _mission_item.lat, _mission_item.lon);
		 }
		_mission_item.loiter_radius = _navigator->get_loiter_radius();
		_mission_item.loiter_direction = 1;
		_mission_item.nav_cmd = NAV_CMD_WAYPOINT;
		_mission_item.acceptance_radius = _navigator->get_acceptance_radius();
		_mission_item.time_inside = 0.0f;
		_mission_item.pitch_min = 0.0f;
		_mission_item.autocontinue = true;
		_mission_item.origin = ORIGIN_ONBOARD;

		mavlink_log_critical(_navigator->get_mavlink_log_pub(), "RTL: return at %d m (%d m above home)",
			(int)(_mission_item.altitude),
			(int)(_mission_item.altitude - _navigator->get_home_position()->alt));

		_rtl_start_lock = true;
		break;
	}

	case RTL_STATE_DESCEND: {
		_mission_item.lat = _navigator->get_home_position()->lat;
		_mission_item.lon = _navigator->get_home_position()->lon;
		_mission_item.altitude_is_relative = false;
		_mission_item.altitude = _navigator->get_home_position()->alt + _param_descend_alt.get();
		_mission_item.yaw = _navigator->get_home_position()->yaw;
		_mission_item.loiter_radius = _navigator->get_loiter_radius();
		_mission_item.loiter_direction = 1;
		_mission_item.nav_cmd = NAV_CMD_LOITER_TIME_LIMIT;
		_mission_item.acceptance_radius = _navigator->get_acceptance_radius();
		_mission_item.time_inside = 0.0f;
		_mission_item.pitch_min = 0.0f;
		_mission_item.autocontinue = false;
		_mission_item.origin = ORIGIN_ONBOARD;

		mavlink_log_critical(_navigator->get_mavlink_log_pub(), "RTL: descend to %d m (%d m above home)",
			(int)(_mission_item.altitude),
			(int)(_mission_item.altitude - _navigator->get_home_position()->alt));
		break;
	}

	case RTL_STATE_LOITER: {
		bool autoland = _param_land_delay.get() > -DELAY_SIGMA;

		_mission_item.lat = _navigator->get_home_position()->lat;
		_mission_item.lon = _navigator->get_home_position()->lon;
		_mission_item.altitude_is_relative = false;
		_mission_item.altitude = _navigator->get_home_position()->alt + _param_descend_alt.get();
		_mission_item.yaw = _navigator->get_home_position()->yaw;
		_mission_item.loiter_radius = _navigator->get_loiter_radius();
		_mission_item.loiter_direction = 1;
		_mission_item.nav_cmd = autoland ? NAV_CMD_LOITER_TIME_LIMIT : NAV_CMD_LOITER_UNLIMITED;
		_mission_item.acceptance_radius = _navigator->get_acceptance_radius();
		_mission_item.time_inside = _param_land_delay.get() < 0.0f ? 0.0f : _param_land_delay.get();
		_mission_item.pitch_min = 0.0f;
		_mission_item.autocontinue = autoland;
		_mission_item.origin = ORIGIN_ONBOARD;

		_navigator->set_can_loiter_at_sp(true);

		if (autoland) {
			mavlink_log_critical(_navigator->get_mavlink_log_pub(), "RTL: loiter %.1fs", (double)_mission_item.time_inside);

		} else {
			mavlink_log_critical(_navigator->get_mavlink_log_pub(), "RTL: completed, loiter");
		}
		break;
	}

	case RTL_STATE_LAND: {
		set_land_item(&_mission_item, false);

		mavlink_log_critical(_navigator->get_mavlink_log_pub(), "RTL: land at home");
		break;
	}

	case RTL_STATE_LANDED: {
		set_idle_item(&_mission_item);

		mavlink_log_critical(_navigator->get_mavlink_log_pub(), "RTL: completed, landed");
		break;
	}

	default:
		break;
	}

	reset_mission_item_reached();

	/* convert mission item to current position setpoint and make it valid */
	mission_item_to_position_setpoint(&_mission_item, &pos_sp_triplet->current);
	pos_sp_triplet->next.valid = false;

	_navigator->set_position_setpoint_triplet_updated();
}