diff options
Diffstat (limited to 'src/modules/multirotor_att_control/multirotor_attitude_control.c')
| -rw-r--r-- | src/modules/multirotor_att_control/multirotor_attitude_control.c | 254 |
1 files changed, 0 insertions, 254 deletions
diff --git a/src/modules/multirotor_att_control/multirotor_attitude_control.c b/src/modules/multirotor_att_control/multirotor_attitude_control.c deleted file mode 100644 index 8245aa560..000000000 --- a/src/modules/multirotor_att_control/multirotor_attitude_control.c +++ /dev/null @@ -1,254 +0,0 @@ -/**************************************************************************** - * - * Copyright (C) 2008-2012 PX4 Development Team. All rights reserved. - * Author: Thomas Gubler <thomasgubler@student.ethz.ch> - * Julian Oes <joes@student.ethz.ch> - * Laurens Mackay <mackayl@student.ethz.ch> - * Tobias Naegeli <naegelit@student.ethz.ch> - * Martin Rutschmann <rutmarti@student.ethz.ch> - * Lorenz Meier <lm@inf.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_attitude_control.c - * - * Implementation of attitude controller for multirotors. - * - * @author Thomas Gubler <thomasgubler@student.ethz.ch> - * @author Julian Oes <joes@student.ethz.ch> - * @author Laurens Mackay <mackayl@student.ethz.ch> - * @author Tobias Naegeli <naegelit@student.ethz.ch> - * @author Martin Rutschmann <rutmarti@student.ethz.ch> - * @author Lorenz Meier <lm@inf.ethz.ch> - */ - -#include "multirotor_attitude_control.h" -#include <stdio.h> -#include <stdlib.h> -#include <stdio.h> -#include <stdint.h> -#include <stdbool.h> -#include <float.h> -#include <math.h> -#include <systemlib/pid/pid.h> -#include <systemlib/param/param.h> -#include <drivers/drv_hrt.h> - -PARAM_DEFINE_FLOAT(MC_YAWPOS_P, 2.0f); -PARAM_DEFINE_FLOAT(MC_YAWPOS_I, 0.15f); -PARAM_DEFINE_FLOAT(MC_YAWPOS_D, 0.0f); -//PARAM_DEFINE_FLOAT(MC_YAWPOS_AWU, 1.0f); -//PARAM_DEFINE_FLOAT(MC_YAWPOS_LIM, 3.0f); - -PARAM_DEFINE_FLOAT(MC_ATT_P, 6.8f); -PARAM_DEFINE_FLOAT(MC_ATT_I, 0.0f); -PARAM_DEFINE_FLOAT(MC_ATT_D, 0.0f); -//PARAM_DEFINE_FLOAT(MC_ATT_AWU, 0.05f); -//PARAM_DEFINE_FLOAT(MC_ATT_LIM, 0.4f); - -//PARAM_DEFINE_FLOAT(MC_ATT_XOFF, 0.0f); -//PARAM_DEFINE_FLOAT(MC_ATT_YOFF, 0.0f); - -struct mc_att_control_params { - float yaw_p; - float yaw_i; - float yaw_d; - //float yaw_awu; - //float yaw_lim; - - float att_p; - float att_i; - float att_d; - //float att_awu; - //float att_lim; - - //float att_xoff; - //float att_yoff; -}; - -struct mc_att_control_param_handles { - param_t yaw_p; - param_t yaw_i; - param_t yaw_d; - //param_t yaw_awu; - //param_t yaw_lim; - - param_t att_p; - param_t att_i; - param_t att_d; - //param_t att_awu; - //param_t att_lim; - - //param_t att_xoff; - //param_t att_yoff; -}; - -/** - * Initialize all parameter handles and values - * - */ -static int parameters_init(struct mc_att_control_param_handles *h); - -/** - * Update all parameters - * - */ -static int parameters_update(const struct mc_att_control_param_handles *h, struct mc_att_control_params *p); - - -static int parameters_init(struct mc_att_control_param_handles *h) -{ - /* PID parameters */ - h->yaw_p = param_find("MC_YAWPOS_P"); - h->yaw_i = param_find("MC_YAWPOS_I"); - h->yaw_d = param_find("MC_YAWPOS_D"); - //h->yaw_awu = param_find("MC_YAWPOS_AWU"); - //h->yaw_lim = param_find("MC_YAWPOS_LIM"); - - h->att_p = param_find("MC_ATT_P"); - h->att_i = param_find("MC_ATT_I"); - h->att_d = param_find("MC_ATT_D"); - //h->att_awu = param_find("MC_ATT_AWU"); - //h->att_lim = param_find("MC_ATT_LIM"); - - //h->att_xoff = param_find("MC_ATT_XOFF"); - //h->att_yoff = param_find("MC_ATT_YOFF"); - - return OK; -} - -static int parameters_update(const struct mc_att_control_param_handles *h, struct mc_att_control_params *p) -{ - param_get(h->yaw_p, &(p->yaw_p)); - param_get(h->yaw_i, &(p->yaw_i)); - param_get(h->yaw_d, &(p->yaw_d)); - //param_get(h->yaw_awu, &(p->yaw_awu)); - //param_get(h->yaw_lim, &(p->yaw_lim)); - - param_get(h->att_p, &(p->att_p)); - param_get(h->att_i, &(p->att_i)); - param_get(h->att_d, &(p->att_d)); - //param_get(h->att_awu, &(p->att_awu)); - //param_get(h->att_lim, &(p->att_lim)); - - //param_get(h->att_xoff, &(p->att_xoff)); - //param_get(h->att_yoff, &(p->att_yoff)); - - return OK; -} - -void multirotor_control_attitude(const struct vehicle_attitude_setpoint_s *att_sp, - const struct vehicle_attitude_s *att, struct vehicle_rates_setpoint_s *rates_sp, bool control_yaw_position, bool reset_integral) -{ - static uint64_t last_run = 0; - static uint64_t last_input = 0; - float deltaT = (hrt_absolute_time() - last_run) / 1000000.0f; - last_run = hrt_absolute_time(); - - if (last_input != att_sp->timestamp) { - last_input = att_sp->timestamp; - } - - static int motor_skip_counter = 0; - - static PID_t pitch_controller; - static PID_t roll_controller; - - static struct mc_att_control_params p; - static struct mc_att_control_param_handles h; - - static bool initialized = false; - - static float yaw_error; - - /* initialize the pid controllers when the function is called for the first time */ - if (initialized == false) { - parameters_init(&h); - parameters_update(&h, &p); - - pid_init(&pitch_controller, p.att_p, p.att_i, p.att_d, 1000.0f, 1000.0f, PID_MODE_DERIVATIV_SET, 0.0f); - pid_init(&roll_controller, p.att_p, p.att_i, p.att_d, 1000.0f, 1000.0f, PID_MODE_DERIVATIV_SET, 0.0f); - - initialized = true; - } - - /* load new parameters with lower rate */ - if (motor_skip_counter % 500 == 0) { - /* update parameters from storage */ - parameters_update(&h, &p); - - /* apply parameters */ - pid_set_parameters(&pitch_controller, p.att_p, p.att_i, p.att_d, 1000.0f, 1000.0f); - pid_set_parameters(&roll_controller, p.att_p, p.att_i, p.att_d, 1000.0f, 1000.0f); - } - - /* reset integrals if needed */ - if (reset_integral) { - pid_reset_integral(&pitch_controller); - pid_reset_integral(&roll_controller); - //TODO pid_reset_integral(&yaw_controller); - } - - /* calculate current control outputs */ - - /* control pitch (forward) output */ - rates_sp->pitch = pid_calculate(&pitch_controller, att_sp->pitch_body , - att->pitch, att->pitchspeed, deltaT); - - /* control roll (left/right) output */ - rates_sp->roll = pid_calculate(&roll_controller, att_sp->roll_body , - att->roll, att->rollspeed, deltaT); - - if (control_yaw_position) { - /* control yaw rate */ - // TODO use pid lib - - /* positive error: rotate to right, negative error, rotate to left (NED frame) */ - // yaw_error = _wrap_pi(att_sp->yaw_body - att->yaw); - - yaw_error = att_sp->yaw_body - att->yaw; - - if (yaw_error > M_PI_F) { - yaw_error -= M_TWOPI_F; - - } else if (yaw_error < -M_PI_F) { - yaw_error += M_TWOPI_F; - } - - rates_sp->yaw = p.yaw_p * (yaw_error) - (p.yaw_d * att->yawspeed); - } - - rates_sp->thrust = att_sp->thrust; - //need to update the timestamp now that we've touched rates_sp - rates_sp->timestamp = hrt_absolute_time(); - - motor_skip_counter++; -} |