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author | Lorenz Meier <lm@inf.ethz.ch> | 2012-10-04 14:50:34 +0200 |
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committer | Lorenz Meier <lm@inf.ethz.ch> | 2012-10-04 14:50:34 +0200 |
commit | 607e902b886b39b5e9b58999dee97c2ea8938151 (patch) | |
tree | ef17512bea9d23d706f134d0a25fb52486f4b7e7 /apps/multirotor_pos_control/position_control.c | |
parent | 2a06b66845542b05e3cad3d21099e33adc213227 (diff) | |
download | px4-firmware-607e902b886b39b5e9b58999dee97c2ea8938151.tar.gz px4-firmware-607e902b886b39b5e9b58999dee97c2ea8938151.tar.bz2 px4-firmware-607e902b886b39b5e9b58999dee97c2ea8938151.zip |
Cleaned up / simplified position control, attacking pos control implementation next
Diffstat (limited to 'apps/multirotor_pos_control/position_control.c')
-rw-r--r-- | apps/multirotor_pos_control/position_control.c | 410 |
1 files changed, 205 insertions, 205 deletions
diff --git a/apps/multirotor_pos_control/position_control.c b/apps/multirotor_pos_control/position_control.c index b98f5bede..9c53a5bf6 100644 --- a/apps/multirotor_pos_control/position_control.c +++ b/apps/multirotor_pos_control/position_control.c @@ -1,235 +1,235 @@ -/**************************************************************************** - * - * Copyright (C) 2008-2012 PX4 Development Team. All rights reserved. - * Author: @author Lorenz Meier <lm@inf.ethz.ch> - * @author Laurens Mackay <mackayl@student.ethz.ch> - * @author Tobias Naegeli <naegelit@student.ethz.ch> - * @author Martin Rutschmann <rutmarti@student.ethz.ch> - * - * 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 multirotor_position_control.c - * Implementation of the position control for a multirotor VTOL - */ - -#include <stdio.h> -#include <stdlib.h> -#include <stdio.h> -#include <stdint.h> -#include <math.h> -#include <stdbool.h> -#include <float.h> -#include <systemlib/pid/pid.h> - -#include "multirotor_position_control.h" - -void control_multirotor_position(const struct vehicle_state_s *vstatus, const struct vehicle_manual_control_s *manual, - const struct vehicle_attitude_s *att, const struct vehicle_local_position_s *local_pos, - const struct vehicle_local_position_setpoint_s *local_pos_sp, struct vehicle_attitude_setpoint_s *att_sp) -{ - static PID_t distance_controller; - - static int read_ret; - static global_data_position_t position_estimated; - - static uint16_t counter; - - static bool initialized; - static uint16_t pm_counter; - - static float lat_next; - static float lon_next; - - static float pitch_current; - - static float thrust_total; - - - if (initialized == false) { - - pid_init(&distance_controller, - global_data_parameter_storage->pm.param_values[PARAM_PID_POS_P], - global_data_parameter_storage->pm.param_values[PARAM_PID_POS_I], - global_data_parameter_storage->pm.param_values[PARAM_PID_POS_D], - global_data_parameter_storage->pm.param_values[PARAM_PID_POS_AWU], - PID_MODE_DERIVATIV_CALC, 150);//150 - -// pid_pos_lim = global_data_parameter_storage->pm.param_values[PARAM_PID_POS_LIM]; -// pid_pos_z_lim = global_data_parameter_storage->pm.param_values[PARAM_PID_POS_Z_LIM]; - - thrust_total = 0.0f; - - /* Position initialization */ - /* Wait for new position estimate */ - do { - read_ret = read_lock_position(&position_estimated); - } while (read_ret != 0); - - lat_next = position_estimated.lat; - lon_next = position_estimated.lon; - - /* attitude initialization */ - global_data_lock(&global_data_attitude->access_conf); - pitch_current = global_data_attitude->pitch; - global_data_unlock(&global_data_attitude->access_conf); - - initialized = true; - } - - /* load new parameters with 10Hz */ - if (counter % 50 == 0) { - if (global_data_trylock(&global_data_parameter_storage->access_conf) == 0) { - /* check whether new parameters are available */ - if (global_data_parameter_storage->counter > pm_counter) { - pid_set_parameters(&distance_controller, - global_data_parameter_storage->pm.param_values[PARAM_PID_POS_P], - global_data_parameter_storage->pm.param_values[PARAM_PID_POS_I], - global_data_parameter_storage->pm.param_values[PARAM_PID_POS_D], - global_data_parameter_storage->pm.param_values[PARAM_PID_POS_AWU]); - -// -// pid_pos_lim = global_data_parameter_storage->pm.param_values[PARAM_PID_POS_LIM]; -// pid_pos_z_lim = global_data_parameter_storage->pm.param_values[PARAM_PID_POS_Z_LIM]; - - pm_counter = global_data_parameter_storage->counter; - printf("Position controller changed pid parameters\n"); - } - } +// /**************************************************************************** +// * +// * Copyright (C) 2008-2012 PX4 Development Team. All rights reserved. +// * Author: @author Lorenz Meier <lm@inf.ethz.ch> +// * @author Laurens Mackay <mackayl@student.ethz.ch> +// * @author Tobias Naegeli <naegelit@student.ethz.ch> +// * @author Martin Rutschmann <rutmarti@student.ethz.ch> +// * +// * 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 multirotor_position_control.c +// * Implementation of the position control for a multirotor VTOL +// */ + +// #include <stdio.h> +// #include <stdlib.h> +// #include <stdio.h> +// #include <stdint.h> +// #include <math.h> +// #include <stdbool.h> +// #include <float.h> +// #include <systemlib/pid/pid.h> + +// #include "multirotor_position_control.h" + +// void control_multirotor_position(const struct vehicle_state_s *vstatus, const struct vehicle_manual_control_s *manual, +// const struct vehicle_attitude_s *att, const struct vehicle_local_position_s *local_pos, +// const struct vehicle_local_position_setpoint_s *local_pos_sp, struct vehicle_attitude_setpoint_s *att_sp) +// { +// static PID_t distance_controller; + +// static int read_ret; +// static global_data_position_t position_estimated; + +// static uint16_t counter; + +// static bool initialized; +// static uint16_t pm_counter; + +// static float lat_next; +// static float lon_next; + +// static float pitch_current; + +// static float thrust_total; + + +// if (initialized == false) { + +// pid_init(&distance_controller, +// global_data_parameter_storage->pm.param_values[PARAM_PID_POS_P], +// global_data_parameter_storage->pm.param_values[PARAM_PID_POS_I], +// global_data_parameter_storage->pm.param_values[PARAM_PID_POS_D], +// global_data_parameter_storage->pm.param_values[PARAM_PID_POS_AWU], +// PID_MODE_DERIVATIV_CALC, 150);//150 + +// // pid_pos_lim = global_data_parameter_storage->pm.param_values[PARAM_PID_POS_LIM]; +// // pid_pos_z_lim = global_data_parameter_storage->pm.param_values[PARAM_PID_POS_Z_LIM]; + +// thrust_total = 0.0f; + +// /* Position initialization */ +// /* Wait for new position estimate */ +// do { +// read_ret = read_lock_position(&position_estimated); +// } while (read_ret != 0); + +// lat_next = position_estimated.lat; +// lon_next = position_estimated.lon; + +// /* attitude initialization */ +// global_data_lock(&global_data_attitude->access_conf); +// pitch_current = global_data_attitude->pitch; +// global_data_unlock(&global_data_attitude->access_conf); + +// initialized = true; +// } + +// /* load new parameters with 10Hz */ +// if (counter % 50 == 0) { +// if (global_data_trylock(&global_data_parameter_storage->access_conf) == 0) { +// /* check whether new parameters are available */ +// if (global_data_parameter_storage->counter > pm_counter) { +// pid_set_parameters(&distance_controller, +// global_data_parameter_storage->pm.param_values[PARAM_PID_POS_P], +// global_data_parameter_storage->pm.param_values[PARAM_PID_POS_I], +// global_data_parameter_storage->pm.param_values[PARAM_PID_POS_D], +// global_data_parameter_storage->pm.param_values[PARAM_PID_POS_AWU]); + +// // +// // pid_pos_lim = global_data_parameter_storage->pm.param_values[PARAM_PID_POS_LIM]; +// // pid_pos_z_lim = global_data_parameter_storage->pm.param_values[PARAM_PID_POS_Z_LIM]; + +// pm_counter = global_data_parameter_storage->counter; +// printf("Position controller changed pid parameters\n"); +// } +// } - global_data_unlock(&global_data_parameter_storage->access_conf); - } +// global_data_unlock(&global_data_parameter_storage->access_conf); +// } - /* Wait for new position estimate */ - do { - read_ret = read_lock_position(&position_estimated); - } while (read_ret != 0); +// /* Wait for new position estimate */ +// do { +// read_ret = read_lock_position(&position_estimated); +// } while (read_ret != 0); - /* Get next waypoint */ //TODO: add local copy +// /* Get next waypoint */ //TODO: add local copy - if (0 == global_data_trylock(&global_data_position_setpoint->access_conf)) { - lat_next = global_data_position_setpoint->x; - lon_next = global_data_position_setpoint->y; - global_data_unlock(&global_data_position_setpoint->access_conf); - } +// if (0 == global_data_trylock(&global_data_position_setpoint->access_conf)) { +// lat_next = global_data_position_setpoint->x; +// lon_next = global_data_position_setpoint->y; +// global_data_unlock(&global_data_position_setpoint->access_conf); +// } - /* Get distance to waypoint */ - float distance_to_waypoint = get_distance_to_next_waypoint(position_estimated.lat , position_estimated.lon, lat_next, lon_next); -// if(counter % 5 == 0) -// printf("distance_to_waypoint: %.4f\n", distance_to_waypoint); +// /* Get distance to waypoint */ +// float distance_to_waypoint = get_distance_to_next_waypoint(position_estimated.lat , position_estimated.lon, lat_next, lon_next); +// // if(counter % 5 == 0) +// // printf("distance_to_waypoint: %.4f\n", distance_to_waypoint); - /* Get bearing to waypoint (direction on earth surface to next waypoint) */ - float bearing = get_bearing_to_next_waypoint(position_estimated.lat, position_estimated.lon, lat_next, lon_next); +// /* Get bearing to waypoint (direction on earth surface to next waypoint) */ +// float bearing = get_bearing_to_next_waypoint(position_estimated.lat, position_estimated.lon, lat_next, lon_next); - if (counter % 5 == 0) - printf("bearing: %.4f\n", bearing); +// if (counter % 5 == 0) +// printf("bearing: %.4f\n", bearing); - /* Calculate speed in direction of bearing (needed for controller) */ - float speed_norm = sqrtf(position_estimated.vx * position_estimated.vx + position_estimated.vy * position_estimated.vy); -// if(counter % 5 == 0) -// printf("speed_norm: %.4f\n", speed_norm); - float speed_to_waypoint = 0; //(position_estimated.vx * cosf(bearing) + position_estimated.vy * sinf(bearing))/speed_norm; //FIXME, TODO: re-enable this once we have a full estimate of the speed, then we can do a PID for the distance controller +// /* Calculate speed in direction of bearing (needed for controller) */ +// float speed_norm = sqrtf(position_estimated.vx * position_estimated.vx + position_estimated.vy * position_estimated.vy); +// // if(counter % 5 == 0) +// // printf("speed_norm: %.4f\n", speed_norm); +// float speed_to_waypoint = 0; //(position_estimated.vx * cosf(bearing) + position_estimated.vy * sinf(bearing))/speed_norm; //FIXME, TODO: re-enable this once we have a full estimate of the speed, then we can do a PID for the distance controller - /* Control Thrust in bearing direction */ - float horizontal_thrust = -pid_calculate(&distance_controller, 0, distance_to_waypoint, speed_to_waypoint, - CONTROL_PID_POSITION_INTERVAL); //TODO: maybe this "-" sign is an error somewhere else +// /* Control Thrust in bearing direction */ +// float horizontal_thrust = -pid_calculate(&distance_controller, 0, distance_to_waypoint, speed_to_waypoint, +// CONTROL_PID_POSITION_INTERVAL); //TODO: maybe this "-" sign is an error somewhere else -// if(counter % 5 == 0) -// printf("horizontal thrust: %.4f\n", horizontal_thrust); +// // if(counter % 5 == 0) +// // printf("horizontal thrust: %.4f\n", horizontal_thrust); - /* Get total thrust (from remote for now) */ - if (0 == global_data_trylock(&global_data_rc_channels->access_conf)) { - thrust_total = (float)global_data_rc_channels->chan[THROTTLE].scale; //TODO: how should we use the RC_CHANNELS_FUNCTION enum? - global_data_unlock(&global_data_rc_channels->access_conf); - } +// /* Get total thrust (from remote for now) */ +// if (0 == global_data_trylock(&global_data_rc_channels->access_conf)) { +// thrust_total = (float)global_data_rc_channels->chan[THROTTLE].scale; //TODO: how should we use the RC_CHANNELS_FUNCTION enum? +// global_data_unlock(&global_data_rc_channels->access_conf); +// } - const float max_gas = 500.0f; - thrust_total *= max_gas / 20000.0f; //TODO: check this - thrust_total += max_gas / 2.0f; +// const float max_gas = 500.0f; +// thrust_total *= max_gas / 20000.0f; //TODO: check this +// thrust_total += max_gas / 2.0f; - if (horizontal_thrust > thrust_total) { - horizontal_thrust = thrust_total; +// if (horizontal_thrust > thrust_total) { +// horizontal_thrust = thrust_total; - } else if (horizontal_thrust < -thrust_total) { - horizontal_thrust = -thrust_total; - } +// } else if (horizontal_thrust < -thrust_total) { +// horizontal_thrust = -thrust_total; +// } - //TODO: maybe we want to add a speed controller later... +// //TODO: maybe we want to add a speed controller later... - /* Calclulate thrust in east and north direction */ - float thrust_north = cosf(bearing) * horizontal_thrust; - float thrust_east = sinf(bearing) * horizontal_thrust; +// /* Calclulate thrust in east and north direction */ +// float thrust_north = cosf(bearing) * horizontal_thrust; +// float thrust_east = sinf(bearing) * horizontal_thrust; - if (counter % 10 == 0) { - printf("thrust north: %.4f\n", thrust_north); - printf("thrust east: %.4f\n", thrust_east); - fflush(stdout); - } +// if (counter % 10 == 0) { +// printf("thrust north: %.4f\n", thrust_north); +// printf("thrust east: %.4f\n", thrust_east); +// fflush(stdout); +// } - /* Get current attitude */ - if (0 == global_data_trylock(&global_data_attitude->access_conf)) { - pitch_current = global_data_attitude->pitch; - global_data_unlock(&global_data_attitude->access_conf); - } +// /* Get current attitude */ +// if (0 == global_data_trylock(&global_data_attitude->access_conf)) { +// pitch_current = global_data_attitude->pitch; +// global_data_unlock(&global_data_attitude->access_conf); +// } - /* Get desired pitch & roll */ - float pitch_desired = 0.0f; - float roll_desired = 0.0f; +// /* Get desired pitch & roll */ +// float pitch_desired = 0.0f; +// float roll_desired = 0.0f; - if (thrust_total != 0) { - float pitch_fraction = -thrust_north / thrust_total; - float roll_fraction = thrust_east / (cosf(pitch_current) * thrust_total); +// if (thrust_total != 0) { +// float pitch_fraction = -thrust_north / thrust_total; +// float roll_fraction = thrust_east / (cosf(pitch_current) * thrust_total); - if (roll_fraction < -1) { - roll_fraction = -1; +// if (roll_fraction < -1) { +// roll_fraction = -1; - } else if (roll_fraction > 1) { - roll_fraction = 1; - } +// } else if (roll_fraction > 1) { +// roll_fraction = 1; +// } -// if(counter % 5 == 0) -// { -// printf("pitch_fraction: %.4f, roll_fraction: %.4f\n",pitch_fraction, roll_fraction); -// fflush(stdout); -// } +// // if(counter % 5 == 0) +// // { +// // printf("pitch_fraction: %.4f, roll_fraction: %.4f\n",pitch_fraction, roll_fraction); +// // fflush(stdout); +// // } - pitch_desired = asinf(pitch_fraction); - roll_desired = asinf(roll_fraction); - } +// pitch_desired = asinf(pitch_fraction); +// roll_desired = asinf(roll_fraction); +// } - att_sp.roll = roll_desired; - att_sp.pitch = pitch_desired; +// att_sp.roll = roll_desired; +// att_sp.pitch = pitch_desired; - counter++; -} +// counter++; +// } |