diff options
Diffstat (limited to 'src/modules/navigator/mission_block.cpp')
-rw-r--r-- | src/modules/navigator/mission_block.cpp | 251 |
1 files changed, 251 insertions, 0 deletions
diff --git a/src/modules/navigator/mission_block.cpp b/src/modules/navigator/mission_block.cpp new file mode 100644 index 000000000..4adf77dce --- /dev/null +++ b/src/modules/navigator/mission_block.cpp @@ -0,0 +1,251 @@ +/**************************************************************************** + * + * Copyright (c) 2014 PX4 Development Team. All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in + * the documentation and/or other materials provided with the + * distribution. + * 3. Neither the name PX4 nor the names of its contributors may be + * used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS + * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE + * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, + * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, + * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS + * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED + * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN + * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGE. + * + ****************************************************************************/ +/** + * @file mission_block.cpp + * + * Helper class to use mission items + * + * @author Julian Oes <julian@oes.ch> + */ + +#include <sys/types.h> +#include <string.h> +#include <stdlib.h> +#include <unistd.h> +#include <math.h> +#include <float.h> + +#include <systemlib/err.h> +#include <geo/geo.h> +#include <mavlink/mavlink_log.h> + +#include <uORB/uORB.h> + +#include "navigator.h" +#include "mission_block.h" + + +MissionBlock::MissionBlock(Navigator *navigator, const char *name) : + NavigatorMode(navigator, name), + _mission_item({0}), + _waypoint_position_reached(false), + _waypoint_yaw_reached(false), + _time_first_inside_orbit(0) +{ +} + +MissionBlock::~MissionBlock() +{ +} + +bool +MissionBlock::is_mission_item_reached() +{ + if (_mission_item.nav_cmd == NAV_CMD_IDLE) { + return false; + } + + if (_mission_item.nav_cmd == NAV_CMD_LAND) { + return _navigator->get_vstatus()->condition_landed; + } + + /* TODO: count turns */ + if ((/*_mission_item.nav_cmd == NAV_CMD_LOITER_TURN_COUNT ||*/ + _mission_item.nav_cmd == NAV_CMD_LOITER_UNLIMITED)) { + return false; + } + + hrt_abstime now = hrt_absolute_time(); + + if (!_waypoint_position_reached) { + float dist = -1.0f; + float dist_xy = -1.0f; + float dist_z = -1.0f; + + float altitude_amsl = _mission_item.altitude_is_relative + ? _mission_item.altitude + _navigator->get_home_position()->alt + : _mission_item.altitude; + + dist = get_distance_to_point_global_wgs84(_mission_item.lat, _mission_item.lon, altitude_amsl, + _navigator->get_global_position()->lat, + _navigator->get_global_position()->lon, + _navigator->get_global_position()->alt, + &dist_xy, &dist_z); + + if (_mission_item.nav_cmd == NAV_CMD_TAKEOFF && _navigator->get_vstatus()->is_rotary_wing) { + /* require only altitude for takeoff for multicopter */ + if (_navigator->get_global_position()->alt > + altitude_amsl - _navigator->get_acceptance_radius()) { + _waypoint_position_reached = true; + } + } else if (_mission_item.nav_cmd == NAV_CMD_TAKEOFF) { + /* for takeoff mission items use the parameter for the takeoff acceptance radius */ + if (dist >= 0.0f && dist <= _navigator->get_acceptance_radius()) { + _waypoint_position_reached = true; + } + } else { + /* for normal mission items used their acceptance radius */ + if (dist >= 0.0f && dist <= _mission_item.acceptance_radius) { + _waypoint_position_reached = true; + } + } + } + + if (_waypoint_position_reached && !_waypoint_yaw_reached) { + + /* TODO: removed takeoff, why? */ + if (_navigator->get_vstatus()->is_rotary_wing && isfinite(_mission_item.yaw)) { + + /* check yaw if defined only for rotary wing except takeoff */ + float yaw_err = _wrap_pi(_mission_item.yaw - _navigator->get_global_position()->yaw); + + if (fabsf(yaw_err) < 0.2f) { /* TODO: get rid of magic number */ + _waypoint_yaw_reached = true; + } + + } else { + _waypoint_yaw_reached = true; + } + } + + /* check if the current waypoint was reached */ + if (_waypoint_position_reached && _waypoint_yaw_reached) { + + if (_time_first_inside_orbit == 0) { + _time_first_inside_orbit = now; + + // if (_mission_item.time_inside > 0.01f) { + // mavlink_log_info(_mavlink_fd, "#audio: waypoint reached, wait for %.1fs", + // (double)_mission_item.time_inside); + // } + } + + /* check if the MAV was long enough inside the waypoint orbit */ + if (now - _time_first_inside_orbit >= (hrt_abstime)_mission_item.time_inside * 1e6f) { + return true; + } + } + return false; +} + +void +MissionBlock::reset_mission_item_reached() +{ + _waypoint_position_reached = false; + _waypoint_yaw_reached = false; + _time_first_inside_orbit = 0; +} + +void +MissionBlock::mission_item_to_position_setpoint(const struct mission_item_s *item, struct position_setpoint_s *sp) +{ + sp->valid = true; + sp->lat = item->lat; + sp->lon = item->lon; + sp->alt = item->altitude_is_relative ? item->altitude + _navigator->get_home_position()->alt : item->altitude; + sp->yaw = item->yaw; + sp->loiter_radius = item->loiter_radius; + sp->loiter_direction = item->loiter_direction; + sp->pitch_min = item->pitch_min; + + switch (item->nav_cmd) { + case NAV_CMD_IDLE: + sp->type = SETPOINT_TYPE_IDLE; + break; + + case NAV_CMD_TAKEOFF: + sp->type = SETPOINT_TYPE_TAKEOFF; + break; + + case NAV_CMD_LAND: + sp->type = SETPOINT_TYPE_LAND; + break; + + case NAV_CMD_LOITER_TIME_LIMIT: + case NAV_CMD_LOITER_TURN_COUNT: + case NAV_CMD_LOITER_UNLIMITED: + sp->type = SETPOINT_TYPE_LOITER; + break; + + default: + sp->type = SETPOINT_TYPE_POSITION; + break; + } +} + +void +MissionBlock::set_previous_pos_setpoint() +{ + struct position_setpoint_triplet_s *pos_sp_triplet = _navigator->get_position_setpoint_triplet(); + + if (pos_sp_triplet->current.valid) { + memcpy(&pos_sp_triplet->previous, &pos_sp_triplet->current, sizeof(struct position_setpoint_s)); + } +} + +void +MissionBlock::set_loiter_item(struct mission_item_s *item) +{ + if (_navigator->get_vstatus()->condition_landed) { + /* landed, don't takeoff, but switch to IDLE mode */ + item->nav_cmd = NAV_CMD_IDLE; + + } else { + item->nav_cmd = NAV_CMD_LOITER_UNLIMITED; + + struct position_setpoint_triplet_s *pos_sp_triplet = _navigator->get_position_setpoint_triplet(); + + if (_navigator->get_can_loiter_at_sp() && pos_sp_triplet->current.valid) { + /* use current position setpoint */ + item->lat = pos_sp_triplet->current.lat; + item->lon = pos_sp_triplet->current.lon; + item->altitude = pos_sp_triplet->current.alt; + + } else { + /* use current position */ + item->lat = _navigator->get_global_position()->lat; + item->lon = _navigator->get_global_position()->lon; + item->altitude = _navigator->get_global_position()->alt; + } + + item->altitude_is_relative = false; + item->yaw = NAN; + item->loiter_radius = _navigator->get_loiter_radius(); + item->loiter_direction = 1; + item->acceptance_radius = _navigator->get_acceptance_radius(); + item->time_inside = 0.0f; + item->pitch_min = 0.0f; + item->autocontinue = false; + item->origin = ORIGIN_ONBOARD; + } +} |