From 988bf1eb0a3d36532883734a416f9c9e1e6ba125 Mon Sep 17 00:00:00 2001 From: Lorenz Meier Date: Sat, 27 Apr 2013 14:28:47 +0200 Subject: Moved all fixed wing controllers to new world --- apps/examples/control_demo/Makefile | 42 -- apps/examples/control_demo/control_demo.cpp | 168 -------- apps/examples/control_demo/params.c | 71 --- apps/fixedwing_att_control/Makefile | 45 -- .../fixedwing_att_control_att.c | 170 -------- .../fixedwing_att_control_att.h | 51 --- .../fixedwing_att_control_main.c | 369 ---------------- .../fixedwing_att_control_rate.c | 209 --------- .../fixedwing_att_control_rate.h | 48 --- apps/fixedwing_pos_control/Makefile | 45 -- .../fixedwing_pos_control_main.c | 479 --------------------- makefiles/config_px4fmu_default.mk | 7 + .../fixedwing_att_control_att.c | 169 ++++++++ .../fixedwing_att_control_att.h | 51 +++ .../fixedwing_att_control_main.c | 370 ++++++++++++++++ .../fixedwing_att_control_rate.c | 211 +++++++++ .../fixedwing_att_control_rate.h | 48 +++ src/modules/fixedwing_att_control/module.mk | 42 ++ .../fixedwing_backside/fixedwing_backside_main.cpp | 170 ++++++++ src/modules/fixedwing_backside/module.mk | 40 ++ src/modules/fixedwing_backside/params.c | 71 +++ .../fixedwing_pos_control_main.c | 479 +++++++++++++++++++++ src/modules/fixedwing_pos_control/module.mk | 40 ++ 23 files changed, 1698 insertions(+), 1697 deletions(-) delete mode 100644 apps/examples/control_demo/Makefile delete mode 100644 apps/examples/control_demo/control_demo.cpp delete mode 100644 apps/examples/control_demo/params.c delete mode 100644 apps/fixedwing_att_control/Makefile delete mode 100644 apps/fixedwing_att_control/fixedwing_att_control_att.c delete mode 100644 apps/fixedwing_att_control/fixedwing_att_control_att.h delete mode 100644 apps/fixedwing_att_control/fixedwing_att_control_main.c delete mode 100644 apps/fixedwing_att_control/fixedwing_att_control_rate.c delete mode 100644 apps/fixedwing_att_control/fixedwing_att_control_rate.h delete mode 100644 apps/fixedwing_pos_control/Makefile delete mode 100644 apps/fixedwing_pos_control/fixedwing_pos_control_main.c create mode 100644 src/modules/fixedwing_att_control/fixedwing_att_control_att.c create mode 100644 src/modules/fixedwing_att_control/fixedwing_att_control_att.h create mode 100644 src/modules/fixedwing_att_control/fixedwing_att_control_main.c create mode 100644 src/modules/fixedwing_att_control/fixedwing_att_control_rate.c create mode 100644 src/modules/fixedwing_att_control/fixedwing_att_control_rate.h create mode 100644 src/modules/fixedwing_att_control/module.mk create mode 100644 src/modules/fixedwing_backside/fixedwing_backside_main.cpp create mode 100644 src/modules/fixedwing_backside/module.mk create mode 100644 src/modules/fixedwing_backside/params.c create mode 100644 src/modules/fixedwing_pos_control/fixedwing_pos_control_main.c create mode 100644 src/modules/fixedwing_pos_control/module.mk diff --git a/apps/examples/control_demo/Makefile b/apps/examples/control_demo/Makefile deleted file mode 100644 index 6e40e645f..000000000 --- a/apps/examples/control_demo/Makefile +++ /dev/null @@ -1,42 +0,0 @@ -############################################################################ -# -# Copyright (C) 2012 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. -# -############################################################################ - -# -# Basic example application -# - -APPNAME = control_demo -PRIORITY = SCHED_PRIORITY_DEFAULT -STACKSIZE = 2048 - -include $(APPDIR)/mk/app.mk diff --git a/apps/examples/control_demo/control_demo.cpp b/apps/examples/control_demo/control_demo.cpp deleted file mode 100644 index e609f2f4b..000000000 --- a/apps/examples/control_demo/control_demo.cpp +++ /dev/null @@ -1,168 +0,0 @@ -/**************************************************************************** - * - * Copyright (C) 2012 PX4 Development Team. All rights reserved. - * Author: @author Example User - * - * 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 control_demo.cpp - * Demonstration of control library - */ - -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include - -static bool thread_should_exit = false; /**< Deamon exit flag */ -static bool thread_running = false; /**< Deamon status flag */ -static int deamon_task; /**< Handle of deamon task / thread */ - -/** - * Deamon management function. - */ -extern "C" __EXPORT int control_demo_main(int argc, char *argv[]); - -/** - * Mainloop of deamon. - */ -int control_demo_thread_main(int argc, char *argv[]); - -/** - * Test function - */ -void test(); - -/** - * Print the correct usage. - */ -static void usage(const char *reason); - -static void -usage(const char *reason) -{ - if (reason) - fprintf(stderr, "%s\n", reason); - - fprintf(stderr, "usage: control_demo {start|stop|status} [-p ]\n\n"); - exit(1); -} - -/** - * The deamon app only briefly exists to start - * the background job. The stack size assigned in the - * Makefile does only apply to this management task. - * - * The actual stack size should be set in the call - * to task_create(). - */ -int control_demo_main(int argc, char *argv[]) -{ - - if (argc < 1) - usage("missing command"); - - if (!strcmp(argv[1], "start")) { - - if (thread_running) { - printf("control_demo already running\n"); - /* this is not an error */ - exit(0); - } - - thread_should_exit = false; - deamon_task = task_spawn("control_demo", - SCHED_DEFAULT, - SCHED_PRIORITY_MAX - 10, - 5120, - control_demo_thread_main, - (argv) ? (const char **)&argv[2] : (const char **)NULL); - exit(0); - } - - if (!strcmp(argv[1], "test")) { - test(); - exit(0); - } - - if (!strcmp(argv[1], "stop")) { - thread_should_exit = true; - exit(0); - } - - if (!strcmp(argv[1], "status")) { - if (thread_running) { - printf("\tcontrol_demo app is running\n"); - - } else { - printf("\tcontrol_demo app not started\n"); - } - - exit(0); - } - - usage("unrecognized command"); - exit(1); -} - -int control_demo_thread_main(int argc, char *argv[]) -{ - - printf("[control_Demo] starting\n"); - - using namespace control; - - fixedwing::BlockMultiModeBacksideAutopilot autopilot(NULL, "FWB"); - - thread_running = true; - - while (!thread_should_exit) { - autopilot.update(); - } - - printf("[control_demo] exiting.\n"); - - thread_running = false; - - return 0; -} - -void test() -{ - printf("beginning control lib test\n"); - control::basicBlocksTest(); -} diff --git a/apps/examples/control_demo/params.c b/apps/examples/control_demo/params.c deleted file mode 100644 index 428b779b1..000000000 --- a/apps/examples/control_demo/params.c +++ /dev/null @@ -1,71 +0,0 @@ -#include - -// currently tuned for easystar from arkhangar in HIL -//https://github.com/arktools/arkhangar - -// 16 is max name length - -// gyro low pass filter -PARAM_DEFINE_FLOAT(FWB_P_LP, 300.0f); // roll rate low pass cut freq -PARAM_DEFINE_FLOAT(FWB_Q_LP, 300.0f); // pitch rate low pass cut freq -PARAM_DEFINE_FLOAT(FWB_R_LP, 300.0f); // yaw rate low pass cut freq - -// yaw washout -PARAM_DEFINE_FLOAT(FWB_R_HP, 1.0f); // yaw rate high pass - -// stabilization mode -PARAM_DEFINE_FLOAT(FWB_P2AIL, 0.3f); // roll rate 2 aileron -PARAM_DEFINE_FLOAT(FWB_Q2ELV, 0.1f); // pitch rate 2 elevator -PARAM_DEFINE_FLOAT(FWB_R2RDR, 0.1f); // yaw rate 2 rudder - -// psi -> phi -> p -PARAM_DEFINE_FLOAT(FWB_PSI2PHI, 0.5f); // heading 2 roll -PARAM_DEFINE_FLOAT(FWB_PHI2P, 1.0f); // roll to roll rate -PARAM_DEFINE_FLOAT(FWB_PHI_LIM_MAX, 0.3f); // roll limit, 28 deg - -// velocity -> theta -PARAM_DEFINE_FLOAT(FWB_V2THE_P, 1.0f); // velocity to pitch angle PID, prop gain -PARAM_DEFINE_FLOAT(FWB_V2THE_I, 0.0f); // integral gain -PARAM_DEFINE_FLOAT(FWB_V2THE_D, 0.0f); // derivative gain -PARAM_DEFINE_FLOAT(FWB_V2THE_D_LP, 0.0f); // derivative low-pass -PARAM_DEFINE_FLOAT(FWB_V2THE_I_MAX, 0.0f); // integrator wind up guard -PARAM_DEFINE_FLOAT(FWB_THE_MIN, -0.5f); // the max commanded pitch angle -PARAM_DEFINE_FLOAT(FWB_THE_MAX, 0.5f); // the min commanded pitch angle - - -// theta -> q -PARAM_DEFINE_FLOAT(FWB_THE2Q_P, 1.0f); // pitch angle to pitch-rate PID -PARAM_DEFINE_FLOAT(FWB_THE2Q_I, 0.0f); -PARAM_DEFINE_FLOAT(FWB_THE2Q_D, 0.0f); -PARAM_DEFINE_FLOAT(FWB_THE2Q_D_LP, 0.0f); -PARAM_DEFINE_FLOAT(FWB_THE2Q_I_MAX, 0.0f); - -// h -> thr -PARAM_DEFINE_FLOAT(FWB_H2THR_P, 0.01f); // altitude to throttle PID -PARAM_DEFINE_FLOAT(FWB_H2THR_I, 0.0f); -PARAM_DEFINE_FLOAT(FWB_H2THR_D, 0.0f); -PARAM_DEFINE_FLOAT(FWB_H2THR_D_LP, 0.0f); -PARAM_DEFINE_FLOAT(FWB_H2THR_I_MAX, 0.0f); - -// crosstrack -PARAM_DEFINE_FLOAT(FWB_XT2YAW_MAX, 1.57f); // cross-track to yaw angle limit 90 deg -PARAM_DEFINE_FLOAT(FWB_XT2YAW, 0.005f); // cross-track to yaw angle gain - -// speed command -PARAM_DEFINE_FLOAT(FWB_V_MIN, 10.0f); // minimum commanded velocity -PARAM_DEFINE_FLOAT(FWB_V_CMD, 12.0f); // commanded velocity -PARAM_DEFINE_FLOAT(FWB_V_MAX, 16.0f); // maximum commanded velocity - -// rate of climb -// this is what rate of climb is commanded (in m/s) -// when the pitch stick is fully defelcted in simple mode -PARAM_DEFINE_FLOAT(FWB_ROC_MAX, 1.0f); - -// rate of climb -> thr -PARAM_DEFINE_FLOAT(FWB_ROC2THR_P, 0.01f); // rate of climb to throttle PID -PARAM_DEFINE_FLOAT(FWB_ROC2THR_I, 0.0f); -PARAM_DEFINE_FLOAT(FWB_ROC2THR_D, 0.0f); -PARAM_DEFINE_FLOAT(FWB_ROC2THR_D_LP, 0.0f); -PARAM_DEFINE_FLOAT(FWB_ROC2THR_I_MAX, 0.0f); - -PARAM_DEFINE_FLOAT(FWB_TRIM_THR, 0.8f); // trim throttle (0,1) diff --git a/apps/fixedwing_att_control/Makefile b/apps/fixedwing_att_control/Makefile deleted file mode 100644 index 01465fa9e..000000000 --- a/apps/fixedwing_att_control/Makefile +++ /dev/null @@ -1,45 +0,0 @@ -############################################################################ -# -# Copyright (C) 2012 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. -# -############################################################################ - -# -# Fixedwing Control application -# - -APPNAME = fixedwing_att_control -PRIORITY = SCHED_PRIORITY_MAX - 30 -STACKSIZE = 2048 - -INCLUDES = $(TOPDIR)/../mavlink/include/mavlink - -include $(APPDIR)/mk/app.mk - diff --git a/apps/fixedwing_att_control/fixedwing_att_control_att.c b/apps/fixedwing_att_control/fixedwing_att_control_att.c deleted file mode 100644 index b012448a2..000000000 --- a/apps/fixedwing_att_control/fixedwing_att_control_att.c +++ /dev/null @@ -1,170 +0,0 @@ -/**************************************************************************** - * - * Copyright (C) 2012 PX4 Development Team. All rights reserved. - * Author: @author Thomas Gubler - * - * 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 fixedwing_att_control_rate.c - * Implementation of a fixed wing attitude controller. - */ -#include - -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include - -#include -#include -#include -#include -#include -#include -#include - - - - -struct fw_att_control_params { - float roll_p; - float rollrate_lim; - float pitch_p; - float pitchrate_lim; - float yawrate_lim; - float pitch_roll_compensation_p; -}; - -struct fw_pos_control_param_handles { - param_t roll_p; - param_t rollrate_lim; - param_t pitch_p; - param_t pitchrate_lim; - param_t yawrate_lim; - param_t pitch_roll_compensation_p; -}; - - - -/* Internal Prototypes */ -static int parameters_init(struct fw_pos_control_param_handles *h); -static int parameters_update(const struct fw_pos_control_param_handles *h, struct fw_att_control_params *p); - -static int parameters_init(struct fw_pos_control_param_handles *h) -{ - /* PID parameters */ - h->roll_p = param_find("FW_ROLL_P"); - h->rollrate_lim = param_find("FW_ROLLR_LIM"); - h->pitch_p = param_find("FW_PITCH_P"); - h->pitchrate_lim = param_find("FW_PITCHR_LIM"); - h->yawrate_lim = param_find("FW_YAWR_LIM"); - h->pitch_roll_compensation_p = param_find("FW_PITCH_RCOMP"); - - return OK; -} - -static int parameters_update(const struct fw_pos_control_param_handles *h, struct fw_att_control_params *p) -{ - param_get(h->roll_p, &(p->roll_p)); - param_get(h->rollrate_lim, &(p->rollrate_lim)); - param_get(h->pitch_p, &(p->pitch_p)); - param_get(h->pitchrate_lim, &(p->pitchrate_lim)); - param_get(h->yawrate_lim, &(p->yawrate_lim)); - param_get(h->pitch_roll_compensation_p, &(p->pitch_roll_compensation_p)); - - return OK; -} - -int fixedwing_att_control_attitude(const struct vehicle_attitude_setpoint_s *att_sp, - const struct vehicle_attitude_s *att, - const float speed_body[], - struct vehicle_rates_setpoint_s *rates_sp) -{ - static int counter = 0; - static bool initialized = false; - - static struct fw_att_control_params p; - static struct fw_pos_control_param_handles h; - - static PID_t roll_controller; - static PID_t pitch_controller; - - - if (!initialized) { - parameters_init(&h); - parameters_update(&h, &p); - pid_init(&roll_controller, p.roll_p, 0, 0, 0, p.rollrate_lim, PID_MODE_DERIVATIV_NONE); //P Controller - pid_init(&pitch_controller, p.pitch_p, 0, 0, 0, p.pitchrate_lim, PID_MODE_DERIVATIV_NONE); //P Controller - initialized = true; - } - - /* load new parameters with lower rate */ - if (counter % 100 == 0) { - /* update parameters from storage */ - parameters_update(&h, &p); - pid_set_parameters(&roll_controller, p.roll_p, 0, 0, 0, p.rollrate_lim); - pid_set_parameters(&pitch_controller, p.pitch_p, 0, 0, 0, p.pitchrate_lim); - } - - /* Roll (P) */ - rates_sp->roll = pid_calculate(&roll_controller, att_sp->roll_body, att->roll, 0, 0); - - - /* Pitch (P) */ - - /* compensate feedforward for loss of lift due to non-horizontal angle of wing */ - float pitch_sp_rollcompensation = p.pitch_roll_compensation_p * fabsf(sinf(att_sp->roll_body)); - /* set pitch plus feedforward roll compensation */ - rates_sp->pitch = pid_calculate(&pitch_controller, - att_sp->pitch_body + pitch_sp_rollcompensation, - att->pitch, 0, 0); - - /* Yaw (from coordinated turn constraint or lateral force) */ - rates_sp->yaw = (att->rollspeed * rates_sp->roll + 9.81f * sinf(att->roll) * cosf(att->pitch) + speed_body[0] * rates_sp->pitch * sinf(att->roll)) - / (speed_body[0] * cosf(att->roll) * cosf(att->pitch) + speed_body[2] * sinf(att->pitch)); - -// printf("rates_sp->yaw %.4f \n", (double)rates_sp->yaw); - - counter++; - - return 0; -} - - - diff --git a/apps/fixedwing_att_control/fixedwing_att_control_att.h b/apps/fixedwing_att_control/fixedwing_att_control_att.h deleted file mode 100644 index 600e35b89..000000000 --- a/apps/fixedwing_att_control/fixedwing_att_control_att.h +++ /dev/null @@ -1,51 +0,0 @@ -/**************************************************************************** - * - * Copyright (C) 2012 PX4 Development Team. All rights reserved. - * Author: @author Thomas Gubler - * - * - * 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 Fixed Wing Attitude Control */ - -#ifndef FIXEDWING_ATT_CONTROL_ATT_H_ -#define FIXEDWING_ATT_CONTROL_ATT_H_ - -#include -#include -#include -#include - -int fixedwing_att_control_attitude(const struct vehicle_attitude_setpoint_s *att_sp, - const struct vehicle_attitude_s *att, - const float speed_body[], - struct vehicle_rates_setpoint_s *rates_sp); - -#endif /* FIXEDWING_ATT_CONTROL_ATT_H_ */ diff --git a/apps/fixedwing_att_control/fixedwing_att_control_main.c b/apps/fixedwing_att_control/fixedwing_att_control_main.c deleted file mode 100644 index aa9db6d52..000000000 --- a/apps/fixedwing_att_control/fixedwing_att_control_main.c +++ /dev/null @@ -1,369 +0,0 @@ -/**************************************************************************** - * - * Copyright (C) 2012 PX4 Development Team. All rights reserved. - * Author: @author Thomas Gubler - * @author Doug Weibel - * - * 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 fixedwing_att_control.c - * Implementation of a fixed wing attitude controller. - */ - -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include - -/* Prototypes */ -/** - * Deamon management function. - */ -__EXPORT int fixedwing_att_control_main(int argc, char *argv[]); - -/** - * Mainloop of deamon. - */ -int fixedwing_att_control_thread_main(int argc, char *argv[]); - -/** - * Print the correct usage. - */ -static void usage(const char *reason); - -/* Variables */ -static bool thread_should_exit = false; /**< Deamon exit flag */ -static bool thread_running = false; /**< Deamon status flag */ -static int deamon_task; /**< Handle of deamon task / thread */ - -/* Main Thread */ -int fixedwing_att_control_thread_main(int argc, char *argv[]) -{ - /* read arguments */ - bool verbose = false; - - for (int i = 1; i < argc; i++) { - if (strcmp(argv[i], "-v") == 0 || strcmp(argv[i], "--verbose") == 0) { - verbose = true; - } - } - - /* welcome user */ - printf("[fixedwing att control] started\n"); - - /* declare and safely initialize all structs */ - struct vehicle_attitude_s att; - memset(&att, 0, sizeof(att)); - struct vehicle_attitude_setpoint_s att_sp; - memset(&att_sp, 0, sizeof(att_sp)); - struct vehicle_rates_setpoint_s rates_sp; - memset(&rates_sp, 0, sizeof(rates_sp)); - struct vehicle_global_position_s global_pos; - memset(&global_pos, 0, sizeof(global_pos)); - struct manual_control_setpoint_s manual_sp; - memset(&manual_sp, 0, sizeof(manual_sp)); - struct vehicle_status_s vstatus; - memset(&vstatus, 0, sizeof(vstatus)); - - /* output structs */ - struct actuator_controls_s actuators; - memset(&actuators, 0, sizeof(actuators)); - - - /* publish actuator controls */ - for (unsigned i = 0; i < NUM_ACTUATOR_CONTROLS; i++) { - actuators.control[i] = 0.0f; - } - - orb_advert_t actuator_pub = orb_advertise(ORB_ID_VEHICLE_ATTITUDE_CONTROLS, &actuators); - orb_advert_t rates_pub = orb_advertise(ORB_ID(vehicle_rates_setpoint), &rates_sp); - - /* subscribe */ - int att_sub = orb_subscribe(ORB_ID(vehicle_attitude)); - int att_sp_sub = orb_subscribe(ORB_ID(vehicle_attitude_setpoint)); - int global_pos_sub = orb_subscribe(ORB_ID(vehicle_global_position)); - int manual_sp_sub = orb_subscribe(ORB_ID(manual_control_setpoint)); - int vstatus_sub = orb_subscribe(ORB_ID(vehicle_status)); - - /* Setup of loop */ - float gyro[3] = {0.0f, 0.0f, 0.0f}; - float speed_body[3] = {0.0f, 0.0f, 0.0f}; - struct pollfd fds = { .fd = att_sub, .events = POLLIN }; - - while (!thread_should_exit) { - /* wait for a sensor update, check for exit condition every 500 ms */ - poll(&fds, 1, 500); - - /* Check if there is a new position measurement or attitude setpoint */ - bool pos_updated; - orb_check(global_pos_sub, &pos_updated); - bool att_sp_updated; - orb_check(att_sp_sub, &att_sp_updated); - - /* get a local copy of attitude */ - orb_copy(ORB_ID(vehicle_attitude), att_sub, &att); - - if (att_sp_updated) - orb_copy(ORB_ID(vehicle_attitude_setpoint), att_sp_sub, &att_sp); - - if (pos_updated) { - orb_copy(ORB_ID(vehicle_global_position), global_pos_sub, &global_pos); - - if (att.R_valid) { - speed_body[0] = att.R[0][0] * global_pos.vx + att.R[0][1] * global_pos.vy + att.R[0][2] * global_pos.vz; - speed_body[1] = att.R[1][0] * global_pos.vx + att.R[1][1] * global_pos.vy + att.R[1][2] * global_pos.vz; - speed_body[2] = att.R[2][0] * global_pos.vx + att.R[2][1] * global_pos.vy + att.R[2][2] * global_pos.vz; - - } else { - speed_body[0] = 0; - speed_body[1] = 0; - speed_body[2] = 0; - - printf("FW ATT CONTROL: Did not get a valid R\n"); - } - } - - orb_copy(ORB_ID(manual_control_setpoint), manual_sp_sub, &manual_sp); - orb_copy(ORB_ID(vehicle_status), vstatus_sub, &vstatus); - - gyro[0] = att.rollspeed; - gyro[1] = att.pitchspeed; - gyro[2] = att.yawspeed; - - /* control */ - - if (vstatus.state_machine == SYSTEM_STATE_AUTO || - vstatus.state_machine == SYSTEM_STATE_STABILIZED) { - /* attitude control */ - fixedwing_att_control_attitude(&att_sp, &att, speed_body, &rates_sp); - - /* angular rate control */ - fixedwing_att_control_rates(&rates_sp, gyro, &actuators); - - /* pass through throttle */ - actuators.control[3] = att_sp.thrust; - - /* set flaps to zero */ - actuators.control[4] = 0.0f; - - } else if (vstatus.state_machine == SYSTEM_STATE_MANUAL) { - if (vstatus.manual_control_mode == VEHICLE_MANUAL_CONTROL_MODE_SAS) { - - /* if the RC signal is lost, try to stay level and go slowly back down to ground */ - if (vstatus.rc_signal_lost) { - - /* put plane into loiter */ - att_sp.roll_body = 0.3f; - att_sp.pitch_body = 0.0f; - - /* limit throttle to 60 % of last value if sane */ - if (isfinite(manual_sp.throttle) && - (manual_sp.throttle >= 0.0f) && - (manual_sp.throttle <= 1.0f)) { - att_sp.thrust = 0.6f * manual_sp.throttle; - - } else { - att_sp.thrust = 0.0f; - } - - att_sp.yaw_body = 0; - - // XXX disable yaw control, loiter - - } else { - - att_sp.roll_body = manual_sp.roll; - att_sp.pitch_body = manual_sp.pitch; - att_sp.yaw_body = 0; - att_sp.thrust = manual_sp.throttle; - } - - att_sp.timestamp = hrt_absolute_time(); - - /* attitude control */ - fixedwing_att_control_attitude(&att_sp, &att, speed_body, &rates_sp); - - /* angular rate control */ - fixedwing_att_control_rates(&rates_sp, gyro, &actuators); - - /* pass through throttle */ - actuators.control[3] = att_sp.thrust; - - /* pass through flaps */ - if (isfinite(manual_sp.flaps)) { - actuators.control[4] = manual_sp.flaps; - - } else { - actuators.control[4] = 0.0f; - } - - } else if (vstatus.manual_control_mode == VEHICLE_MANUAL_CONTROL_MODE_DIRECT) { - /* directly pass through values */ - actuators.control[0] = manual_sp.roll; - /* positive pitch means negative actuator -> pull up */ - actuators.control[1] = manual_sp.pitch; - actuators.control[2] = manual_sp.yaw; - actuators.control[3] = manual_sp.throttle; - - if (isfinite(manual_sp.flaps)) { - actuators.control[4] = manual_sp.flaps; - - } else { - actuators.control[4] = 0.0f; - } - } - } - - /* publish rates */ - orb_publish(ORB_ID(vehicle_rates_setpoint), rates_pub, &rates_sp); - - /* sanity check and publish actuator outputs */ - if (isfinite(actuators.control[0]) && - isfinite(actuators.control[1]) && - isfinite(actuators.control[2]) && - isfinite(actuators.control[3])) { - orb_publish(ORB_ID_VEHICLE_ATTITUDE_CONTROLS, actuator_pub, &actuators); - } - } - - printf("[fixedwing_att_control] exiting, stopping all motors.\n"); - thread_running = false; - - /* kill all outputs */ - for (unsigned i = 0; i < NUM_ACTUATOR_CONTROLS; i++) - actuators.control[i] = 0.0f; - - orb_publish(ORB_ID_VEHICLE_ATTITUDE_CONTROLS, actuator_pub, &actuators); - - - - close(att_sub); - close(actuator_pub); - close(rates_pub); - - fflush(stdout); - exit(0); - - return 0; - -} - -/* Startup Functions */ - -static void -usage(const char *reason) -{ - if (reason) - fprintf(stderr, "%s\n", reason); - - fprintf(stderr, "usage: fixedwing_att_control {start|stop|status}\n\n"); - exit(1); -} - -/** - * The deamon app only briefly exists to start - * the background job. The stack size assigned in the - * Makefile does only apply to this management task. - * - * The actual stack size should be set in the call - * to task_create(). - */ -int fixedwing_att_control_main(int argc, char *argv[]) -{ - if (argc < 1) - usage("missing command"); - - if (!strcmp(argv[1], "start")) { - - if (thread_running) { - printf("fixedwing_att_control already running\n"); - /* this is not an error */ - exit(0); - } - - thread_should_exit = false; - deamon_task = task_spawn("fixedwing_att_control", - SCHED_DEFAULT, - SCHED_PRIORITY_MAX - 20, - 2048, - fixedwing_att_control_thread_main, - (argv) ? (const char **)&argv[2] : (const char **)NULL); - thread_running = true; - exit(0); - } - - if (!strcmp(argv[1], "stop")) { - thread_should_exit = true; - exit(0); - } - - if (!strcmp(argv[1], "status")) { - if (thread_running) { - printf("\tfixedwing_att_control is running\n"); - - } else { - printf("\tfixedwing_att_control not started\n"); - } - - exit(0); - } - - usage("unrecognized command"); - exit(1); -} - - - diff --git a/apps/fixedwing_att_control/fixedwing_att_control_rate.c b/apps/fixedwing_att_control/fixedwing_att_control_rate.c deleted file mode 100644 index ba5b593e2..000000000 --- a/apps/fixedwing_att_control/fixedwing_att_control_rate.c +++ /dev/null @@ -1,209 +0,0 @@ -/**************************************************************************** - * - * Copyright (C) 2012 PX4 Development Team. All rights reserved. - * Author: Thomas Gubler - * - * 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 fixedwing_att_control_rate.c - * Implementation of a fixed wing attitude controller. - * - * @author Thomas Gubler - */ -#include - -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include - -#include -#include -#include -#include -#include -#include -#include - -/* - * Controller parameters, accessible via MAVLink - * - */ -// Roll control parameters -PARAM_DEFINE_FLOAT(FW_ROLLR_P, 0.9f); -PARAM_DEFINE_FLOAT(FW_ROLLR_I, 0.2f); -PARAM_DEFINE_FLOAT(FW_ROLLR_AWU, 0.9f); -PARAM_DEFINE_FLOAT(FW_ROLLR_LIM, 0.7f); // Roll rate limit in radians/sec, applies to the roll controller -PARAM_DEFINE_FLOAT(FW_ROLL_P, 4.0f); -PARAM_DEFINE_FLOAT(FW_PITCH_RCOMP, 0.1f); - -//Pitch control parameters -PARAM_DEFINE_FLOAT(FW_PITCHR_P, 0.8f); -PARAM_DEFINE_FLOAT(FW_PITCHR_I, 0.2f); -PARAM_DEFINE_FLOAT(FW_PITCHR_AWU, 0.8f); -PARAM_DEFINE_FLOAT(FW_PITCHR_LIM, 0.35f); // Pitch rate limit in radians/sec, applies to the pitch controller -PARAM_DEFINE_FLOAT(FW_PITCH_P, 8.0f); - -//Yaw control parameters //XXX TODO this is copy paste, asign correct values -PARAM_DEFINE_FLOAT(FW_YAWR_P, 0.3f); -PARAM_DEFINE_FLOAT(FW_YAWR_I, 0.0f); -PARAM_DEFINE_FLOAT(FW_YAWR_AWU, 0.0f); -PARAM_DEFINE_FLOAT(FW_YAWR_LIM, 0.35f); // Yaw rate limit in radians/sec - -/* feedforward compensation */ -PARAM_DEFINE_FLOAT(FW_PITCH_THR_P, 0.1f); /**< throttle to pitch coupling feedforward */ - -struct fw_rate_control_params { - float rollrate_p; - float rollrate_i; - float rollrate_awu; - float pitchrate_p; - float pitchrate_i; - float pitchrate_awu; - float yawrate_p; - float yawrate_i; - float yawrate_awu; - float pitch_thr_ff; -}; - -struct fw_rate_control_param_handles { - param_t rollrate_p; - param_t rollrate_i; - param_t rollrate_awu; - param_t pitchrate_p; - param_t pitchrate_i; - param_t pitchrate_awu; - param_t yawrate_p; - param_t yawrate_i; - param_t yawrate_awu; - param_t pitch_thr_ff; -}; - - - -/* Internal Prototypes */ -static int parameters_init(struct fw_rate_control_param_handles *h); -static int parameters_update(const struct fw_rate_control_param_handles *h, struct fw_rate_control_params *p); - -static int parameters_init(struct fw_rate_control_param_handles *h) -{ - /* PID parameters */ - h->rollrate_p = param_find("FW_ROLLR_P"); //TODO define rate params for fixed wing - h->rollrate_i = param_find("FW_ROLLR_I"); - h->rollrate_awu = param_find("FW_ROLLR_AWU"); - - h->pitchrate_p = param_find("FW_PITCHR_P"); - h->pitchrate_i = param_find("FW_PITCHR_I"); - h->pitchrate_awu = param_find("FW_PITCHR_AWU"); - - h->yawrate_p = param_find("FW_YAWR_P"); - h->yawrate_i = param_find("FW_YAWR_I"); - h->yawrate_awu = param_find("FW_YAWR_AWU"); - h->pitch_thr_ff = param_find("FW_PITCH_THR_P"); - - return OK; -} - -static int parameters_update(const struct fw_rate_control_param_handles *h, struct fw_rate_control_params *p) -{ - param_get(h->rollrate_p, &(p->rollrate_p)); - param_get(h->rollrate_i, &(p->rollrate_i)); - param_get(h->rollrate_awu, &(p->rollrate_awu)); - param_get(h->pitchrate_p, &(p->pitchrate_p)); - param_get(h->pitchrate_i, &(p->pitchrate_i)); - param_get(h->pitchrate_awu, &(p->pitchrate_awu)); - param_get(h->yawrate_p, &(p->yawrate_p)); - param_get(h->yawrate_i, &(p->yawrate_i)); - param_get(h->yawrate_awu, &(p->yawrate_awu)); - param_get(h->pitch_thr_ff, &(p->pitch_thr_ff)); - - return OK; -} - -int fixedwing_att_control_rates(const struct vehicle_rates_setpoint_s *rate_sp, - const float rates[], - struct actuator_controls_s *actuators) -{ - static int counter = 0; - static bool initialized = false; - - static struct fw_rate_control_params p; - static struct fw_rate_control_param_handles h; - - static PID_t roll_rate_controller; - static PID_t pitch_rate_controller; - static PID_t yaw_rate_controller; - - static uint64_t last_run = 0; - const float deltaT = (hrt_absolute_time() - last_run) / 1000000.0f; - last_run = hrt_absolute_time(); - - if (!initialized) { - parameters_init(&h); - parameters_update(&h, &p); - pid_init(&roll_rate_controller, p.rollrate_p, p.rollrate_i, 0, p.rollrate_awu, 1, PID_MODE_DERIVATIV_NONE); // set D part to 0 because the controller layout is with a PI rate controller - pid_init(&pitch_rate_controller, p.pitchrate_p, p.pitchrate_i, 0, p.pitchrate_awu, 1, PID_MODE_DERIVATIV_NONE); // set D part to 0 because the contpitcher layout is with a PI rate contpitcher - pid_init(&yaw_rate_controller, p.yawrate_p, p.yawrate_i, 0, p.yawrate_awu, 1, PID_MODE_DERIVATIV_NONE); // set D part to 0 because the contpitcher layout is with a PI rate contpitcher - initialized = true; - } - - /* load new parameters with lower rate */ - if (counter % 100 == 0) { - /* update parameters from storage */ - parameters_update(&h, &p); - pid_set_parameters(&roll_rate_controller, p.rollrate_p, p.rollrate_i, 0, p.rollrate_awu, 1); - pid_set_parameters(&pitch_rate_controller, p.pitchrate_p, p.pitchrate_i, 0, p.pitchrate_awu, 1); - pid_set_parameters(&yaw_rate_controller, p.yawrate_p, p.yawrate_i, 0, p.yawrate_awu, 1); - } - - - /* roll rate (PI) */ - actuators->control[0] = pid_calculate(&roll_rate_controller, rate_sp->roll, rates[0], 0.0f, deltaT); - /* pitch rate (PI) */ - actuators->control[1] = -pid_calculate(&pitch_rate_controller, rate_sp->pitch, rates[1], 0.0f, deltaT); - /* yaw rate (PI) */ - actuators->control[2] = pid_calculate(&yaw_rate_controller, rate_sp->yaw, rates[2], 0.0f, deltaT); - - counter++; - - return 0; -} - - - diff --git a/apps/fixedwing_att_control/fixedwing_att_control_rate.h b/apps/fixedwing_att_control/fixedwing_att_control_rate.h deleted file mode 100644 index 500e3e197..000000000 --- a/apps/fixedwing_att_control/fixedwing_att_control_rate.h +++ /dev/null @@ -1,48 +0,0 @@ -/**************************************************************************** - * - * Copyright (C) 2012 PX4 Development Team. All rights reserved. - * Author: @author Thomas Gubler - * - * - * 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 Fixed Wing Attitude Rate Control */ - -#ifndef FIXEDWING_ATT_CONTROL_RATE_H_ -#define FIXEDWING_ATT_CONTROL_RATE_H_ - -#include -#include - -int fixedwing_att_control_rates(const struct vehicle_rates_setpoint_s *rate_sp, - const float rates[], - struct actuator_controls_s *actuators); - -#endif /* FIXEDWING_ATT_CONTROL_RATE_H_ */ diff --git a/apps/fixedwing_pos_control/Makefile b/apps/fixedwing_pos_control/Makefile deleted file mode 100644 index bce391f49..000000000 --- a/apps/fixedwing_pos_control/Makefile +++ /dev/null @@ -1,45 +0,0 @@ -############################################################################ -# -# Copyright (C) 2012 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. -# -############################################################################ - -# -# Fixedwing Control application -# - -APPNAME = fixedwing_pos_control -PRIORITY = SCHED_PRIORITY_MAX - 30 -STACKSIZE = 2048 - -INCLUDES = $(TOPDIR)/../mavlink/include/mavlink - -include $(APPDIR)/mk/app.mk - diff --git a/apps/fixedwing_pos_control/fixedwing_pos_control_main.c b/apps/fixedwing_pos_control/fixedwing_pos_control_main.c deleted file mode 100644 index 71c78f5b8..000000000 --- a/apps/fixedwing_pos_control/fixedwing_pos_control_main.c +++ /dev/null @@ -1,479 +0,0 @@ -/**************************************************************************** - * - * Copyright (C) 2012 PX4 Development Team. All rights reserved. - * Author: @author Thomas Gubler - * @author Doug Weibel - * - * 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 fixedwing_pos_control.c - * Implementation of a fixed wing attitude controller. - */ - -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include - -/* - * Controller parameters, accessible via MAVLink - * - */ -PARAM_DEFINE_FLOAT(FW_HEAD_P, 0.1f); -PARAM_DEFINE_FLOAT(FW_HEADR_I, 0.1f); -PARAM_DEFINE_FLOAT(FW_HEADR_LIM, 1.5f); //TODO: think about reasonable value -PARAM_DEFINE_FLOAT(FW_XTRACK_P, 0.01745f); // Radians per meter off track -PARAM_DEFINE_FLOAT(FW_ALT_P, 0.1f); -PARAM_DEFINE_FLOAT(FW_ROLL_LIM, 0.7f); // Roll angle limit in radians -PARAM_DEFINE_FLOAT(FW_HEADR_P, 0.1f); -PARAM_DEFINE_FLOAT(FW_PITCH_LIM, 0.35f); /**< Pitch angle limit in radians per second */ - -struct fw_pos_control_params { - float heading_p; - float headingr_p; - float headingr_i; - float headingr_lim; - float xtrack_p; - float altitude_p; - float roll_lim; - float pitch_lim; -}; - -struct fw_pos_control_param_handles { - param_t heading_p; - param_t headingr_p; - param_t headingr_i; - param_t headingr_lim; - param_t xtrack_p; - param_t altitude_p; - param_t roll_lim; - param_t pitch_lim; -}; - - -struct planned_path_segments_s { - bool segment_type; - double start_lat; // Start of line or center of arc - double start_lon; - double end_lat; - double end_lon; - float radius; // Radius of arc - float arc_start_bearing; // Bearing from center to start of arc - float arc_sweep; // Angle (radians) swept out by arc around center. - // Positive for clockwise, negative for counter-clockwise -}; - - -/* Prototypes */ -/* Internal Prototypes */ -static int parameters_init(struct fw_pos_control_param_handles *h); -static int parameters_update(const struct fw_pos_control_param_handles *h, struct fw_pos_control_params *p); - -/** - * Deamon management function. - */ -__EXPORT int fixedwing_pos_control_main(int argc, char *argv[]); - -/** - * Mainloop of deamon. - */ -int fixedwing_pos_control_thread_main(int argc, char *argv[]); - -/** - * Print the correct usage. - */ -static void usage(const char *reason); - -/* Variables */ -static bool thread_should_exit = false; /**< Deamon exit flag */ -static bool thread_running = false; /**< Deamon status flag */ -static int deamon_task; /**< Handle of deamon task / thread */ - - -/** - * Parameter management - */ -static int parameters_init(struct fw_pos_control_param_handles *h) -{ - /* PID parameters */ - h->heading_p = param_find("FW_HEAD_P"); - h->headingr_p = param_find("FW_HEADR_P"); - h->headingr_i = param_find("FW_HEADR_I"); - h->headingr_lim = param_find("FW_HEADR_LIM"); - h->xtrack_p = param_find("FW_XTRACK_P"); - h->altitude_p = param_find("FW_ALT_P"); - h->roll_lim = param_find("FW_ROLL_LIM"); - h->pitch_lim = param_find("FW_PITCH_LIM"); - - return OK; -} - -static int parameters_update(const struct fw_pos_control_param_handles *h, struct fw_pos_control_params *p) -{ - param_get(h->heading_p, &(p->heading_p)); - param_get(h->headingr_p, &(p->headingr_p)); - param_get(h->headingr_i, &(p->headingr_i)); - param_get(h->headingr_lim, &(p->headingr_lim)); - param_get(h->xtrack_p, &(p->xtrack_p)); - param_get(h->altitude_p, &(p->altitude_p)); - param_get(h->roll_lim, &(p->roll_lim)); - param_get(h->pitch_lim, &(p->pitch_lim)); - - return OK; -} - - -/* Main Thread */ -int fixedwing_pos_control_thread_main(int argc, char *argv[]) -{ - /* read arguments */ - bool verbose = false; - - for (int i = 1; i < argc; i++) { - if (strcmp(argv[i], "-v") == 0 || strcmp(argv[i], "--verbose") == 0) { - verbose = true; - } - } - - /* welcome user */ - printf("[fixedwing pos control] started\n"); - - /* declare and safely initialize all structs */ - struct vehicle_global_position_s global_pos; - memset(&global_pos, 0, sizeof(global_pos)); - struct vehicle_global_position_s start_pos; // Temporary variable, replace with - memset(&start_pos, 0, sizeof(start_pos)); // previous waypoint when available - struct vehicle_global_position_setpoint_s global_setpoint; - memset(&global_setpoint, 0, sizeof(global_setpoint)); - struct vehicle_attitude_s att; - memset(&att, 0, sizeof(att)); - struct crosstrack_error_s xtrack_err; - memset(&xtrack_err, 0, sizeof(xtrack_err)); - struct parameter_update_s param_update; - memset(¶m_update, 0, sizeof(param_update)); - - /* output structs */ - struct vehicle_attitude_setpoint_s attitude_setpoint; - memset(&attitude_setpoint, 0, sizeof(attitude_setpoint)); - - /* publish attitude setpoint */ - attitude_setpoint.roll_body = 0.0f; - attitude_setpoint.pitch_body = 0.0f; - attitude_setpoint.yaw_body = 0.0f; - attitude_setpoint.thrust = 0.0f; - orb_advert_t attitude_setpoint_pub = orb_advertise(ORB_ID(vehicle_attitude_setpoint), &attitude_setpoint); - - /* subscribe */ - int global_pos_sub = orb_subscribe(ORB_ID(vehicle_global_position)); - int global_setpoint_sub = orb_subscribe(ORB_ID(vehicle_global_position_setpoint)); - int att_sub = orb_subscribe(ORB_ID(vehicle_attitude)); - int param_sub = orb_subscribe(ORB_ID(parameter_update)); - - /* Setup of loop */ - struct pollfd fds[2] = { - { .fd = param_sub, .events = POLLIN }, - { .fd = att_sub, .events = POLLIN } - }; - bool global_sp_updated_set_once = false; - - float psi_track = 0.0f; - - int counter = 0; - - struct fw_pos_control_params p; - struct fw_pos_control_param_handles h; - - PID_t heading_controller; - PID_t heading_rate_controller; - PID_t offtrack_controller; - PID_t altitude_controller; - - parameters_init(&h); - parameters_update(&h, &p); - pid_init(&heading_controller, p.heading_p, 0.0f, 0.0f, 0.0f, 10000.0f, PID_MODE_DERIVATIV_NONE); //arbitrary high limit - pid_init(&heading_rate_controller, p.headingr_p, p.headingr_i, 0.0f, 0.0f, p.roll_lim, PID_MODE_DERIVATIV_NONE); - pid_init(&altitude_controller, p.altitude_p, 0.0f, 0.0f, 0.0f, p.pitch_lim, PID_MODE_DERIVATIV_NONE); - pid_init(&offtrack_controller, p.xtrack_p, 0.0f, 0.0f, 0.0f , 60.0f * M_DEG_TO_RAD, PID_MODE_DERIVATIV_NONE); //TODO: remove hardcoded value - - /* error and performance monitoring */ - perf_counter_t fw_interval_perf = perf_alloc(PC_INTERVAL, "fixedwing_pos_control_interval"); - perf_counter_t fw_err_perf = perf_alloc(PC_COUNT, "fixedwing_pos_control_err"); - - while (!thread_should_exit) { - /* wait for a sensor update, check for exit condition every 500 ms */ - int ret = poll(fds, 2, 500); - - if (ret < 0) { - /* poll error, count it in perf */ - perf_count(fw_err_perf); - - } else if (ret == 0) { - /* no return value, ignore */ - } else { - - /* only update parameters if they changed */ - if (fds[0].revents & POLLIN) { - /* read from param to clear updated flag */ - struct parameter_update_s update; - orb_copy(ORB_ID(parameter_update), param_sub, &update); - - /* update parameters from storage */ - parameters_update(&h, &p); - pid_set_parameters(&heading_controller, p.heading_p, 0, 0, 0, 10000.0f); //arbitrary high limit - pid_set_parameters(&heading_rate_controller, p.headingr_p, p.headingr_i, 0, 0, p.roll_lim); - pid_set_parameters(&altitude_controller, p.altitude_p, 0, 0, 0, p.pitch_lim); - pid_set_parameters(&offtrack_controller, p.xtrack_p, 0, 0, 0, 60.0f * M_DEG_TO_RAD); //TODO: remove hardcoded value - } - - /* only run controller if attitude changed */ - if (fds[1].revents & POLLIN) { - - - static uint64_t last_run = 0; - const float deltaT = (hrt_absolute_time() - last_run) / 1000000.0f; - last_run = hrt_absolute_time(); - - /* check if there is a new position or setpoint */ - bool pos_updated; - orb_check(global_pos_sub, &pos_updated); - bool global_sp_updated; - orb_check(global_setpoint_sub, &global_sp_updated); - - /* load local copies */ - orb_copy(ORB_ID(vehicle_attitude), att_sub, &att); - - if (pos_updated) { - orb_copy(ORB_ID(vehicle_global_position), global_pos_sub, &global_pos); - } - - if (global_sp_updated) { - orb_copy(ORB_ID(vehicle_global_position_setpoint), global_setpoint_sub, &global_setpoint); - start_pos = global_pos; //for now using the current position as the startpoint (= approx. last waypoint because the setpoint switch occurs at the waypoint) - global_sp_updated_set_once = true; - psi_track = get_bearing_to_next_waypoint((double)global_pos.lat / (double)1e7d, (double)global_pos.lon / (double)1e7d, - (double)global_setpoint.lat / (double)1e7d, (double)global_setpoint.lon / (double)1e7d); - - printf("next wp direction: %0.4f\n", (double)psi_track); - } - - /* Simple Horizontal Control */ - if (global_sp_updated_set_once) { - // if (counter % 100 == 0) - // printf("lat_sp %d, ln_sp %d, lat: %d, lon: %d\n", global_setpoint.lat, global_setpoint.lon, global_pos.lat, global_pos.lon); - - /* calculate crosstrack error */ - // Only the case of a straight line track following handled so far - int distance_res = get_distance_to_line(&xtrack_err, (double)global_pos.lat / (double)1e7d, (double)global_pos.lon / (double)1e7d, - (double)start_pos.lat / (double)1e7d, (double)start_pos.lon / (double)1e7d, - (double)global_setpoint.lat / (double)1e7d, (double)global_setpoint.lon / (double)1e7d); - - // XXX what is xtrack_err.past_end? - if (distance_res == OK /*&& !xtrack_err.past_end*/) { - - float delta_psi_c = pid_calculate(&offtrack_controller, 0, xtrack_err.distance, 0.0f, 0.0f); //p.xtrack_p * xtrack_err.distance - - float psi_c = psi_track + delta_psi_c; - float psi_e = psi_c - att.yaw; - - /* wrap difference back onto -pi..pi range */ - psi_e = _wrap_pi(psi_e); - - if (verbose) { - printf("xtrack_err.distance %.4f ", (double)xtrack_err.distance); - printf("delta_psi_c %.4f ", (double)delta_psi_c); - printf("psi_c %.4f ", (double)psi_c); - printf("att.yaw %.4f ", (double)att.yaw); - printf("psi_e %.4f ", (double)psi_e); - } - - /* calculate roll setpoint, do this artificially around zero */ - float delta_psi_rate_c = pid_calculate(&heading_controller, psi_e, 0.0f, 0.0f, 0.0f); - float psi_rate_track = 0; //=V_gr/r_track , this will be needed for implementation of arc following - float psi_rate_c = delta_psi_rate_c + psi_rate_track; - - /* limit turn rate */ - if (psi_rate_c > p.headingr_lim) { - psi_rate_c = p.headingr_lim; - - } else if (psi_rate_c < -p.headingr_lim) { - psi_rate_c = -p.headingr_lim; - } - - float psi_rate_e = psi_rate_c - att.yawspeed; - - // XXX sanity check: Assume 10 m/s stall speed and no stall condition - float ground_speed = sqrtf(global_pos.vx * global_pos.vx + global_pos.vy * global_pos.vy); - - if (ground_speed < 10.0f) { - ground_speed = 10.0f; - } - - float psi_rate_e_scaled = psi_rate_e * ground_speed / 9.81f; //* V_gr / g - - attitude_setpoint.roll_body = pid_calculate(&heading_rate_controller, psi_rate_e_scaled, 0.0f, 0.0f, deltaT); - - if (verbose) { - printf("psi_rate_c %.4f ", (double)psi_rate_c); - printf("psi_rate_e_scaled %.4f ", (double)psi_rate_e_scaled); - printf("rollbody %.4f\n", (double)attitude_setpoint.roll_body); - } - - if (verbose && counter % 100 == 0) - printf("xtrack_err.distance: %0.4f, delta_psi_c: %0.4f\n", xtrack_err.distance, delta_psi_c); - - } else { - if (verbose && counter % 100 == 0) - printf("distance_res: %d, past_end %d\n", distance_res, xtrack_err.past_end); - } - - /* Very simple Altitude Control */ - if (pos_updated) { - - //TODO: take care of relative vs. ab. altitude - attitude_setpoint.pitch_body = pid_calculate(&altitude_controller, global_setpoint.altitude, global_pos.alt, 0.0f, 0.0f); - - } - - // XXX need speed control - attitude_setpoint.thrust = 0.7f; - - /* publish the attitude setpoint */ - orb_publish(ORB_ID(vehicle_attitude_setpoint), attitude_setpoint_pub, &attitude_setpoint); - - /* measure in what intervals the controller runs */ - perf_count(fw_interval_perf); - - counter++; - - } else { - // XXX no setpoint, decent default needed (loiter?) - } - } - } - } - - printf("[fixedwing_pos_control] exiting.\n"); - thread_running = false; - - - close(attitude_setpoint_pub); - - fflush(stdout); - exit(0); - - return 0; - -} - -/* Startup Functions */ - -static void -usage(const char *reason) -{ - if (reason) - fprintf(stderr, "%s\n", reason); - - fprintf(stderr, "usage: fixedwing_pos_control {start|stop|status}\n\n"); - exit(1); -} - -/** - * The deamon app only briefly exists to start - * the background job. The stack size assigned in the - * Makefile does only apply to this management task. - * - * The actual stack size should be set in the call - * to task_create(). - */ -int fixedwing_pos_control_main(int argc, char *argv[]) -{ - if (argc < 1) - usage("missing command"); - - if (!strcmp(argv[1], "start")) { - - if (thread_running) { - printf("fixedwing_pos_control already running\n"); - /* this is not an error */ - exit(0); - } - - thread_should_exit = false; - deamon_task = task_spawn("fixedwing_pos_control", - SCHED_DEFAULT, - SCHED_PRIORITY_MAX - 20, - 2048, - fixedwing_pos_control_thread_main, - (argv) ? (const char **)&argv[2] : (const char **)NULL); - thread_running = true; - exit(0); - } - - if (!strcmp(argv[1], "stop")) { - thread_should_exit = true; - exit(0); - } - - if (!strcmp(argv[1], "status")) { - if (thread_running) { - printf("\tfixedwing_pos_control is running\n"); - - } else { - printf("\tfixedwing_pos_control not started\n"); - } - - exit(0); - } - - usage("unrecognized command"); - exit(1); -} diff --git a/makefiles/config_px4fmu_default.mk b/makefiles/config_px4fmu_default.mk index 0767f7144..6fd7da461 100644 --- a/makefiles/config_px4fmu_default.mk +++ b/makefiles/config_px4fmu_default.mk @@ -56,6 +56,13 @@ MODULES += modules/attitude_estimator_ekf MODULES += modules/position_estimator_mc MODULES += modules/att_pos_estimator_ekf +# +# Vehicle Control +# +MODULES += modules/fixedwing_backside +MODULES += modules/fixedwing_att_control +MODULES += modules/fixedwing_pos_control + # # Logging # diff --git a/src/modules/fixedwing_att_control/fixedwing_att_control_att.c b/src/modules/fixedwing_att_control/fixedwing_att_control_att.c new file mode 100644 index 000000000..769b8b0a8 --- /dev/null +++ b/src/modules/fixedwing_att_control/fixedwing_att_control_att.c @@ -0,0 +1,169 @@ +/**************************************************************************** + * + * Copyright (C) 2012 PX4 Development Team. All rights reserved. + * Author: @author Thomas Gubler + * + * 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 fixedwing_att_control_rate.c + * Implementation of a fixed wing attitude controller. + */ + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#include +#include +#include +#include +#include +#include +#include + +#include "fixedwing_att_control_att.h" + + +struct fw_att_control_params { + float roll_p; + float rollrate_lim; + float pitch_p; + float pitchrate_lim; + float yawrate_lim; + float pitch_roll_compensation_p; +}; + +struct fw_pos_control_param_handles { + param_t roll_p; + param_t rollrate_lim; + param_t pitch_p; + param_t pitchrate_lim; + param_t yawrate_lim; + param_t pitch_roll_compensation_p; +}; + + + +/* Internal Prototypes */ +static int parameters_init(struct fw_pos_control_param_handles *h); +static int parameters_update(const struct fw_pos_control_param_handles *h, struct fw_att_control_params *p); + +static int parameters_init(struct fw_pos_control_param_handles *h) +{ + /* PID parameters */ + h->roll_p = param_find("FW_ROLL_P"); + h->rollrate_lim = param_find("FW_ROLLR_LIM"); + h->pitch_p = param_find("FW_PITCH_P"); + h->pitchrate_lim = param_find("FW_PITCHR_LIM"); + h->yawrate_lim = param_find("FW_YAWR_LIM"); + h->pitch_roll_compensation_p = param_find("FW_PITCH_RCOMP"); + + return OK; +} + +static int parameters_update(const struct fw_pos_control_param_handles *h, struct fw_att_control_params *p) +{ + param_get(h->roll_p, &(p->roll_p)); + param_get(h->rollrate_lim, &(p->rollrate_lim)); + param_get(h->pitch_p, &(p->pitch_p)); + param_get(h->pitchrate_lim, &(p->pitchrate_lim)); + param_get(h->yawrate_lim, &(p->yawrate_lim)); + param_get(h->pitch_roll_compensation_p, &(p->pitch_roll_compensation_p)); + + return OK; +} + +int fixedwing_att_control_attitude(const struct vehicle_attitude_setpoint_s *att_sp, + const struct vehicle_attitude_s *att, + const float speed_body[], + struct vehicle_rates_setpoint_s *rates_sp) +{ + static int counter = 0; + static bool initialized = false; + + static struct fw_att_control_params p; + static struct fw_pos_control_param_handles h; + + static PID_t roll_controller; + static PID_t pitch_controller; + + + if (!initialized) { + parameters_init(&h); + parameters_update(&h, &p); + pid_init(&roll_controller, p.roll_p, 0, 0, 0, p.rollrate_lim, PID_MODE_DERIVATIV_NONE); //P Controller + pid_init(&pitch_controller, p.pitch_p, 0, 0, 0, p.pitchrate_lim, PID_MODE_DERIVATIV_NONE); //P Controller + initialized = true; + } + + /* load new parameters with lower rate */ + if (counter % 100 == 0) { + /* update parameters from storage */ + parameters_update(&h, &p); + pid_set_parameters(&roll_controller, p.roll_p, 0, 0, 0, p.rollrate_lim); + pid_set_parameters(&pitch_controller, p.pitch_p, 0, 0, 0, p.pitchrate_lim); + } + + /* Roll (P) */ + rates_sp->roll = pid_calculate(&roll_controller, att_sp->roll_body, att->roll, 0, 0); + + + /* Pitch (P) */ + + /* compensate feedforward for loss of lift due to non-horizontal angle of wing */ + float pitch_sp_rollcompensation = p.pitch_roll_compensation_p * fabsf(sinf(att_sp->roll_body)); + /* set pitch plus feedforward roll compensation */ + rates_sp->pitch = pid_calculate(&pitch_controller, + att_sp->pitch_body + pitch_sp_rollcompensation, + att->pitch, 0, 0); + + /* Yaw (from coordinated turn constraint or lateral force) */ + rates_sp->yaw = (att->rollspeed * rates_sp->roll + 9.81f * sinf(att->roll) * cosf(att->pitch) + speed_body[0] * rates_sp->pitch * sinf(att->roll)) + / (speed_body[0] * cosf(att->roll) * cosf(att->pitch) + speed_body[2] * sinf(att->pitch)); + +// printf("rates_sp->yaw %.4f \n", (double)rates_sp->yaw); + + counter++; + + return 0; +} + + + diff --git a/src/modules/fixedwing_att_control/fixedwing_att_control_att.h b/src/modules/fixedwing_att_control/fixedwing_att_control_att.h new file mode 100644 index 000000000..600e35b89 --- /dev/null +++ b/src/modules/fixedwing_att_control/fixedwing_att_control_att.h @@ -0,0 +1,51 @@ +/**************************************************************************** + * + * Copyright (C) 2012 PX4 Development Team. All rights reserved. + * Author: @author Thomas Gubler + * + * + * 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 Fixed Wing Attitude Control */ + +#ifndef FIXEDWING_ATT_CONTROL_ATT_H_ +#define FIXEDWING_ATT_CONTROL_ATT_H_ + +#include +#include +#include +#include + +int fixedwing_att_control_attitude(const struct vehicle_attitude_setpoint_s *att_sp, + const struct vehicle_attitude_s *att, + const float speed_body[], + struct vehicle_rates_setpoint_s *rates_sp); + +#endif /* FIXEDWING_ATT_CONTROL_ATT_H_ */ diff --git a/src/modules/fixedwing_att_control/fixedwing_att_control_main.c b/src/modules/fixedwing_att_control/fixedwing_att_control_main.c new file mode 100644 index 000000000..58477632b --- /dev/null +++ b/src/modules/fixedwing_att_control/fixedwing_att_control_main.c @@ -0,0 +1,370 @@ +/**************************************************************************** + * + * Copyright (C) 2012 PX4 Development Team. All rights reserved. + * Author: @author Thomas Gubler + * @author Doug Weibel + * + * 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 fixedwing_att_control.c + * Implementation of a fixed wing attitude controller. + */ + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#include "fixedwing_att_control_rate.h" +#include "fixedwing_att_control_att.h" + +/* Prototypes */ +/** + * Deamon management function. + */ +__EXPORT int fixedwing_att_control_main(int argc, char *argv[]); + +/** + * Mainloop of deamon. + */ +int fixedwing_att_control_thread_main(int argc, char *argv[]); + +/** + * Print the correct usage. + */ +static void usage(const char *reason); + +/* Variables */ +static bool thread_should_exit = false; /**< Deamon exit flag */ +static bool thread_running = false; /**< Deamon status flag */ +static int deamon_task; /**< Handle of deamon task / thread */ + +/* Main Thread */ +int fixedwing_att_control_thread_main(int argc, char *argv[]) +{ + /* read arguments */ + bool verbose = false; + + for (int i = 1; i < argc; i++) { + if (strcmp(argv[i], "-v") == 0 || strcmp(argv[i], "--verbose") == 0) { + verbose = true; + } + } + + /* welcome user */ + printf("[fixedwing att control] started\n"); + + /* declare and safely initialize all structs */ + struct vehicle_attitude_s att; + memset(&att, 0, sizeof(att)); + struct vehicle_attitude_setpoint_s att_sp; + memset(&att_sp, 0, sizeof(att_sp)); + struct vehicle_rates_setpoint_s rates_sp; + memset(&rates_sp, 0, sizeof(rates_sp)); + struct vehicle_global_position_s global_pos; + memset(&global_pos, 0, sizeof(global_pos)); + struct manual_control_setpoint_s manual_sp; + memset(&manual_sp, 0, sizeof(manual_sp)); + struct vehicle_status_s vstatus; + memset(&vstatus, 0, sizeof(vstatus)); + + /* output structs */ + struct actuator_controls_s actuators; + memset(&actuators, 0, sizeof(actuators)); + + + /* publish actuator controls */ + for (unsigned i = 0; i < NUM_ACTUATOR_CONTROLS; i++) { + actuators.control[i] = 0.0f; + } + + orb_advert_t actuator_pub = orb_advertise(ORB_ID_VEHICLE_ATTITUDE_CONTROLS, &actuators); + orb_advert_t rates_pub = orb_advertise(ORB_ID(vehicle_rates_setpoint), &rates_sp); + + /* subscribe */ + int att_sub = orb_subscribe(ORB_ID(vehicle_attitude)); + int att_sp_sub = orb_subscribe(ORB_ID(vehicle_attitude_setpoint)); + int global_pos_sub = orb_subscribe(ORB_ID(vehicle_global_position)); + int manual_sp_sub = orb_subscribe(ORB_ID(manual_control_setpoint)); + int vstatus_sub = orb_subscribe(ORB_ID(vehicle_status)); + + /* Setup of loop */ + float gyro[3] = {0.0f, 0.0f, 0.0f}; + float speed_body[3] = {0.0f, 0.0f, 0.0f}; + struct pollfd fds = { .fd = att_sub, .events = POLLIN }; + + while (!thread_should_exit) { + /* wait for a sensor update, check for exit condition every 500 ms */ + poll(&fds, 1, 500); + + /* Check if there is a new position measurement or attitude setpoint */ + bool pos_updated; + orb_check(global_pos_sub, &pos_updated); + bool att_sp_updated; + orb_check(att_sp_sub, &att_sp_updated); + + /* get a local copy of attitude */ + orb_copy(ORB_ID(vehicle_attitude), att_sub, &att); + + if (att_sp_updated) + orb_copy(ORB_ID(vehicle_attitude_setpoint), att_sp_sub, &att_sp); + + if (pos_updated) { + orb_copy(ORB_ID(vehicle_global_position), global_pos_sub, &global_pos); + + if (att.R_valid) { + speed_body[0] = att.R[0][0] * global_pos.vx + att.R[0][1] * global_pos.vy + att.R[0][2] * global_pos.vz; + speed_body[1] = att.R[1][0] * global_pos.vx + att.R[1][1] * global_pos.vy + att.R[1][2] * global_pos.vz; + speed_body[2] = att.R[2][0] * global_pos.vx + att.R[2][1] * global_pos.vy + att.R[2][2] * global_pos.vz; + + } else { + speed_body[0] = 0; + speed_body[1] = 0; + speed_body[2] = 0; + + printf("FW ATT CONTROL: Did not get a valid R\n"); + } + } + + orb_copy(ORB_ID(manual_control_setpoint), manual_sp_sub, &manual_sp); + orb_copy(ORB_ID(vehicle_status), vstatus_sub, &vstatus); + + gyro[0] = att.rollspeed; + gyro[1] = att.pitchspeed; + gyro[2] = att.yawspeed; + + /* control */ + + if (vstatus.state_machine == SYSTEM_STATE_AUTO || + vstatus.state_machine == SYSTEM_STATE_STABILIZED) { + /* attitude control */ + fixedwing_att_control_attitude(&att_sp, &att, speed_body, &rates_sp); + + /* angular rate control */ + fixedwing_att_control_rates(&rates_sp, gyro, &actuators); + + /* pass through throttle */ + actuators.control[3] = att_sp.thrust; + + /* set flaps to zero */ + actuators.control[4] = 0.0f; + + } else if (vstatus.state_machine == SYSTEM_STATE_MANUAL) { + if (vstatus.manual_control_mode == VEHICLE_MANUAL_CONTROL_MODE_SAS) { + + /* if the RC signal is lost, try to stay level and go slowly back down to ground */ + if (vstatus.rc_signal_lost) { + + /* put plane into loiter */ + att_sp.roll_body = 0.3f; + att_sp.pitch_body = 0.0f; + + /* limit throttle to 60 % of last value if sane */ + if (isfinite(manual_sp.throttle) && + (manual_sp.throttle >= 0.0f) && + (manual_sp.throttle <= 1.0f)) { + att_sp.thrust = 0.6f * manual_sp.throttle; + + } else { + att_sp.thrust = 0.0f; + } + + att_sp.yaw_body = 0; + + // XXX disable yaw control, loiter + + } else { + + att_sp.roll_body = manual_sp.roll; + att_sp.pitch_body = manual_sp.pitch; + att_sp.yaw_body = 0; + att_sp.thrust = manual_sp.throttle; + } + + att_sp.timestamp = hrt_absolute_time(); + + /* attitude control */ + fixedwing_att_control_attitude(&att_sp, &att, speed_body, &rates_sp); + + /* angular rate control */ + fixedwing_att_control_rates(&rates_sp, gyro, &actuators); + + /* pass through throttle */ + actuators.control[3] = att_sp.thrust; + + /* pass through flaps */ + if (isfinite(manual_sp.flaps)) { + actuators.control[4] = manual_sp.flaps; + + } else { + actuators.control[4] = 0.0f; + } + + } else if (vstatus.manual_control_mode == VEHICLE_MANUAL_CONTROL_MODE_DIRECT) { + /* directly pass through values */ + actuators.control[0] = manual_sp.roll; + /* positive pitch means negative actuator -> pull up */ + actuators.control[1] = manual_sp.pitch; + actuators.control[2] = manual_sp.yaw; + actuators.control[3] = manual_sp.throttle; + + if (isfinite(manual_sp.flaps)) { + actuators.control[4] = manual_sp.flaps; + + } else { + actuators.control[4] = 0.0f; + } + } + } + + /* publish rates */ + orb_publish(ORB_ID(vehicle_rates_setpoint), rates_pub, &rates_sp); + + /* sanity check and publish actuator outputs */ + if (isfinite(actuators.control[0]) && + isfinite(actuators.control[1]) && + isfinite(actuators.control[2]) && + isfinite(actuators.control[3])) { + orb_publish(ORB_ID_VEHICLE_ATTITUDE_CONTROLS, actuator_pub, &actuators); + } + } + + printf("[fixedwing_att_control] exiting, stopping all motors.\n"); + thread_running = false; + + /* kill all outputs */ + for (unsigned i = 0; i < NUM_ACTUATOR_CONTROLS; i++) + actuators.control[i] = 0.0f; + + orb_publish(ORB_ID_VEHICLE_ATTITUDE_CONTROLS, actuator_pub, &actuators); + + + + close(att_sub); + close(actuator_pub); + close(rates_pub); + + fflush(stdout); + exit(0); + + return 0; + +} + +/* Startup Functions */ + +static void +usage(const char *reason) +{ + if (reason) + fprintf(stderr, "%s\n", reason); + + fprintf(stderr, "usage: fixedwing_att_control {start|stop|status}\n\n"); + exit(1); +} + +/** + * The deamon app only briefly exists to start + * the background job. The stack size assigned in the + * Makefile does only apply to this management task. + * + * The actual stack size should be set in the call + * to task_create(). + */ +int fixedwing_att_control_main(int argc, char *argv[]) +{ + if (argc < 1) + usage("missing command"); + + if (!strcmp(argv[1], "start")) { + + if (thread_running) { + printf("fixedwing_att_control already running\n"); + /* this is not an error */ + exit(0); + } + + thread_should_exit = false; + deamon_task = task_spawn("fixedwing_att_control", + SCHED_DEFAULT, + SCHED_PRIORITY_MAX - 20, + 2048, + fixedwing_att_control_thread_main, + (argv) ? (const char **)&argv[2] : (const char **)NULL); + thread_running = true; + exit(0); + } + + if (!strcmp(argv[1], "stop")) { + thread_should_exit = true; + exit(0); + } + + if (!strcmp(argv[1], "status")) { + if (thread_running) { + printf("\tfixedwing_att_control is running\n"); + + } else { + printf("\tfixedwing_att_control not started\n"); + } + + exit(0); + } + + usage("unrecognized command"); + exit(1); +} + + + diff --git a/src/modules/fixedwing_att_control/fixedwing_att_control_rate.c b/src/modules/fixedwing_att_control/fixedwing_att_control_rate.c new file mode 100644 index 000000000..4eccc118c --- /dev/null +++ b/src/modules/fixedwing_att_control/fixedwing_att_control_rate.c @@ -0,0 +1,211 @@ +/**************************************************************************** + * + * Copyright (C) 2012 PX4 Development Team. All rights reserved. + * Author: Thomas Gubler + * + * 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 fixedwing_att_control_rate.c + * @author Thomas Gubler + * + * Implementation of a fixed wing attitude controller. + * + */ + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#include +#include +#include +#include +#include +#include +#include + +#include "fixedwing_att_control_rate.h" + +/* + * Controller parameters, accessible via MAVLink + * + */ +// Roll control parameters +PARAM_DEFINE_FLOAT(FW_ROLLR_P, 0.9f); +PARAM_DEFINE_FLOAT(FW_ROLLR_I, 0.2f); +PARAM_DEFINE_FLOAT(FW_ROLLR_AWU, 0.9f); +PARAM_DEFINE_FLOAT(FW_ROLLR_LIM, 0.7f); // Roll rate limit in radians/sec, applies to the roll controller +PARAM_DEFINE_FLOAT(FW_ROLL_P, 4.0f); +PARAM_DEFINE_FLOAT(FW_PITCH_RCOMP, 0.1f); + +//Pitch control parameters +PARAM_DEFINE_FLOAT(FW_PITCHR_P, 0.8f); +PARAM_DEFINE_FLOAT(FW_PITCHR_I, 0.2f); +PARAM_DEFINE_FLOAT(FW_PITCHR_AWU, 0.8f); +PARAM_DEFINE_FLOAT(FW_PITCHR_LIM, 0.35f); // Pitch rate limit in radians/sec, applies to the pitch controller +PARAM_DEFINE_FLOAT(FW_PITCH_P, 8.0f); + +//Yaw control parameters //XXX TODO this is copy paste, asign correct values +PARAM_DEFINE_FLOAT(FW_YAWR_P, 0.3f); +PARAM_DEFINE_FLOAT(FW_YAWR_I, 0.0f); +PARAM_DEFINE_FLOAT(FW_YAWR_AWU, 0.0f); +PARAM_DEFINE_FLOAT(FW_YAWR_LIM, 0.35f); // Yaw rate limit in radians/sec + +/* feedforward compensation */ +PARAM_DEFINE_FLOAT(FW_PITCH_THR_P, 0.1f); /**< throttle to pitch coupling feedforward */ + +struct fw_rate_control_params { + float rollrate_p; + float rollrate_i; + float rollrate_awu; + float pitchrate_p; + float pitchrate_i; + float pitchrate_awu; + float yawrate_p; + float yawrate_i; + float yawrate_awu; + float pitch_thr_ff; +}; + +struct fw_rate_control_param_handles { + param_t rollrate_p; + param_t rollrate_i; + param_t rollrate_awu; + param_t pitchrate_p; + param_t pitchrate_i; + param_t pitchrate_awu; + param_t yawrate_p; + param_t yawrate_i; + param_t yawrate_awu; + param_t pitch_thr_ff; +}; + + + +/* Internal Prototypes */ +static int parameters_init(struct fw_rate_control_param_handles *h); +static int parameters_update(const struct fw_rate_control_param_handles *h, struct fw_rate_control_params *p); + +static int parameters_init(struct fw_rate_control_param_handles *h) +{ + /* PID parameters */ + h->rollrate_p = param_find("FW_ROLLR_P"); //TODO define rate params for fixed wing + h->rollrate_i = param_find("FW_ROLLR_I"); + h->rollrate_awu = param_find("FW_ROLLR_AWU"); + + h->pitchrate_p = param_find("FW_PITCHR_P"); + h->pitchrate_i = param_find("FW_PITCHR_I"); + h->pitchrate_awu = param_find("FW_PITCHR_AWU"); + + h->yawrate_p = param_find("FW_YAWR_P"); + h->yawrate_i = param_find("FW_YAWR_I"); + h->yawrate_awu = param_find("FW_YAWR_AWU"); + h->pitch_thr_ff = param_find("FW_PITCH_THR_P"); + + return OK; +} + +static int parameters_update(const struct fw_rate_control_param_handles *h, struct fw_rate_control_params *p) +{ + param_get(h->rollrate_p, &(p->rollrate_p)); + param_get(h->rollrate_i, &(p->rollrate_i)); + param_get(h->rollrate_awu, &(p->rollrate_awu)); + param_get(h->pitchrate_p, &(p->pitchrate_p)); + param_get(h->pitchrate_i, &(p->pitchrate_i)); + param_get(h->pitchrate_awu, &(p->pitchrate_awu)); + param_get(h->yawrate_p, &(p->yawrate_p)); + param_get(h->yawrate_i, &(p->yawrate_i)); + param_get(h->yawrate_awu, &(p->yawrate_awu)); + param_get(h->pitch_thr_ff, &(p->pitch_thr_ff)); + + return OK; +} + +int fixedwing_att_control_rates(const struct vehicle_rates_setpoint_s *rate_sp, + const float rates[], + struct actuator_controls_s *actuators) +{ + static int counter = 0; + static bool initialized = false; + + static struct fw_rate_control_params p; + static struct fw_rate_control_param_handles h; + + static PID_t roll_rate_controller; + static PID_t pitch_rate_controller; + static PID_t yaw_rate_controller; + + static uint64_t last_run = 0; + const float deltaT = (hrt_absolute_time() - last_run) / 1000000.0f; + last_run = hrt_absolute_time(); + + if (!initialized) { + parameters_init(&h); + parameters_update(&h, &p); + pid_init(&roll_rate_controller, p.rollrate_p, p.rollrate_i, 0, p.rollrate_awu, 1, PID_MODE_DERIVATIV_NONE); // set D part to 0 because the controller layout is with a PI rate controller + pid_init(&pitch_rate_controller, p.pitchrate_p, p.pitchrate_i, 0, p.pitchrate_awu, 1, PID_MODE_DERIVATIV_NONE); // set D part to 0 because the contpitcher layout is with a PI rate contpitcher + pid_init(&yaw_rate_controller, p.yawrate_p, p.yawrate_i, 0, p.yawrate_awu, 1, PID_MODE_DERIVATIV_NONE); // set D part to 0 because the contpitcher layout is with a PI rate contpitcher + initialized = true; + } + + /* load new parameters with lower rate */ + if (counter % 100 == 0) { + /* update parameters from storage */ + parameters_update(&h, &p); + pid_set_parameters(&roll_rate_controller, p.rollrate_p, p.rollrate_i, 0, p.rollrate_awu, 1); + pid_set_parameters(&pitch_rate_controller, p.pitchrate_p, p.pitchrate_i, 0, p.pitchrate_awu, 1); + pid_set_parameters(&yaw_rate_controller, p.yawrate_p, p.yawrate_i, 0, p.yawrate_awu, 1); + } + + + /* roll rate (PI) */ + actuators->control[0] = pid_calculate(&roll_rate_controller, rate_sp->roll, rates[0], 0.0f, deltaT); + /* pitch rate (PI) */ + actuators->control[1] = -pid_calculate(&pitch_rate_controller, rate_sp->pitch, rates[1], 0.0f, deltaT); + /* yaw rate (PI) */ + actuators->control[2] = pid_calculate(&yaw_rate_controller, rate_sp->yaw, rates[2], 0.0f, deltaT); + + counter++; + + return 0; +} + + + diff --git a/src/modules/fixedwing_att_control/fixedwing_att_control_rate.h b/src/modules/fixedwing_att_control/fixedwing_att_control_rate.h new file mode 100644 index 000000000..500e3e197 --- /dev/null +++ b/src/modules/fixedwing_att_control/fixedwing_att_control_rate.h @@ -0,0 +1,48 @@ +/**************************************************************************** + * + * Copyright (C) 2012 PX4 Development Team. All rights reserved. + * Author: @author Thomas Gubler + * + * + * 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 Fixed Wing Attitude Rate Control */ + +#ifndef FIXEDWING_ATT_CONTROL_RATE_H_ +#define FIXEDWING_ATT_CONTROL_RATE_H_ + +#include +#include + +int fixedwing_att_control_rates(const struct vehicle_rates_setpoint_s *rate_sp, + const float rates[], + struct actuator_controls_s *actuators); + +#endif /* FIXEDWING_ATT_CONTROL_RATE_H_ */ diff --git a/src/modules/fixedwing_att_control/module.mk b/src/modules/fixedwing_att_control/module.mk new file mode 100644 index 000000000..fd1a8724a --- /dev/null +++ b/src/modules/fixedwing_att_control/module.mk @@ -0,0 +1,42 @@ +############################################################################ +# +# Copyright (c) 2012, 2013 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. +# +############################################################################ + +# +# Fixedwing Attitude Control application +# + +MODULE_COMMAND = fixedwing_att_control + +SRCS = fixedwing_att_control_main.c \ + fixedwing_att_control_att.c \ + fixedwing_att_control_rate.c diff --git a/src/modules/fixedwing_backside/fixedwing_backside_main.cpp b/src/modules/fixedwing_backside/fixedwing_backside_main.cpp new file mode 100644 index 000000000..e21990c92 --- /dev/null +++ b/src/modules/fixedwing_backside/fixedwing_backside_main.cpp @@ -0,0 +1,170 @@ +/**************************************************************************** + * + * Copyright (c) 2012, 2013 PX4 Development Team. All rights reserved. + * Author: James Goppert + * + * 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 fixedwing_backside_main.cpp + * @author James Goppert + * + * Fixedwing backside controller using control library + */ + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +static bool thread_should_exit = false; /**< Deamon exit flag */ +static bool thread_running = false; /**< Deamon status flag */ +static int deamon_task; /**< Handle of deamon task / thread */ + +/** + * Deamon management function. + */ +extern "C" __EXPORT int fixedwing_backside_main(int argc, char *argv[]); + +/** + * Mainloop of deamon. + */ +int control_demo_thread_main(int argc, char *argv[]); + +/** + * Test function + */ +void test(); + +/** + * Print the correct usage. + */ +static void usage(const char *reason); + +static void +usage(const char *reason) +{ + if (reason) + fprintf(stderr, "%s\n", reason); + + fprintf(stderr, "usage: control_demo {start|stop|status} [-p ]\n\n"); + exit(1); +} + +/** + * The deamon app only briefly exists to start + * the background job. The stack size assigned in the + * Makefile does only apply to this management task. + * + * The actual stack size should be set in the call + * to task_create(). + */ +int fixedwing_backside_main(int argc, char *argv[]) +{ + + if (argc < 1) + usage("missing command"); + + if (!strcmp(argv[1], "start")) { + + if (thread_running) { + printf("control_demo already running\n"); + /* this is not an error */ + exit(0); + } + + thread_should_exit = false; + deamon_task = task_spawn("control_demo", + SCHED_DEFAULT, + SCHED_PRIORITY_MAX - 10, + 5120, + control_demo_thread_main, + (argv) ? (const char **)&argv[2] : (const char **)NULL); + exit(0); + } + + if (!strcmp(argv[1], "test")) { + test(); + exit(0); + } + + if (!strcmp(argv[1], "stop")) { + thread_should_exit = true; + exit(0); + } + + if (!strcmp(argv[1], "status")) { + if (thread_running) { + printf("\tcontrol_demo app is running\n"); + + } else { + printf("\tcontrol_demo app not started\n"); + } + + exit(0); + } + + usage("unrecognized command"); + exit(1); +} + +int control_demo_thread_main(int argc, char *argv[]) +{ + + printf("[control_Demo] starting\n"); + + using namespace control; + + fixedwing::BlockMultiModeBacksideAutopilot autopilot(NULL, "FWB"); + + thread_running = true; + + while (!thread_should_exit) { + autopilot.update(); + } + + printf("[control_demo] exiting.\n"); + + thread_running = false; + + return 0; +} + +void test() +{ + printf("beginning control lib test\n"); + control::basicBlocksTest(); +} diff --git a/src/modules/fixedwing_backside/module.mk b/src/modules/fixedwing_backside/module.mk new file mode 100644 index 000000000..a9233288b --- /dev/null +++ b/src/modules/fixedwing_backside/module.mk @@ -0,0 +1,40 @@ +############################################################################ +# +# Copyright (c) 2012, 2013 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. +# +############################################################################ + +# +# Fixedwing backside controller +# + +MODULE_COMMAND = fixedwing_backside + +SRCS = fixedwing_backside_main.cpp diff --git a/src/modules/fixedwing_backside/params.c b/src/modules/fixedwing_backside/params.c new file mode 100644 index 000000000..428b779b1 --- /dev/null +++ b/src/modules/fixedwing_backside/params.c @@ -0,0 +1,71 @@ +#include + +// currently tuned for easystar from arkhangar in HIL +//https://github.com/arktools/arkhangar + +// 16 is max name length + +// gyro low pass filter +PARAM_DEFINE_FLOAT(FWB_P_LP, 300.0f); // roll rate low pass cut freq +PARAM_DEFINE_FLOAT(FWB_Q_LP, 300.0f); // pitch rate low pass cut freq +PARAM_DEFINE_FLOAT(FWB_R_LP, 300.0f); // yaw rate low pass cut freq + +// yaw washout +PARAM_DEFINE_FLOAT(FWB_R_HP, 1.0f); // yaw rate high pass + +// stabilization mode +PARAM_DEFINE_FLOAT(FWB_P2AIL, 0.3f); // roll rate 2 aileron +PARAM_DEFINE_FLOAT(FWB_Q2ELV, 0.1f); // pitch rate 2 elevator +PARAM_DEFINE_FLOAT(FWB_R2RDR, 0.1f); // yaw rate 2 rudder + +// psi -> phi -> p +PARAM_DEFINE_FLOAT(FWB_PSI2PHI, 0.5f); // heading 2 roll +PARAM_DEFINE_FLOAT(FWB_PHI2P, 1.0f); // roll to roll rate +PARAM_DEFINE_FLOAT(FWB_PHI_LIM_MAX, 0.3f); // roll limit, 28 deg + +// velocity -> theta +PARAM_DEFINE_FLOAT(FWB_V2THE_P, 1.0f); // velocity to pitch angle PID, prop gain +PARAM_DEFINE_FLOAT(FWB_V2THE_I, 0.0f); // integral gain +PARAM_DEFINE_FLOAT(FWB_V2THE_D, 0.0f); // derivative gain +PARAM_DEFINE_FLOAT(FWB_V2THE_D_LP, 0.0f); // derivative low-pass +PARAM_DEFINE_FLOAT(FWB_V2THE_I_MAX, 0.0f); // integrator wind up guard +PARAM_DEFINE_FLOAT(FWB_THE_MIN, -0.5f); // the max commanded pitch angle +PARAM_DEFINE_FLOAT(FWB_THE_MAX, 0.5f); // the min commanded pitch angle + + +// theta -> q +PARAM_DEFINE_FLOAT(FWB_THE2Q_P, 1.0f); // pitch angle to pitch-rate PID +PARAM_DEFINE_FLOAT(FWB_THE2Q_I, 0.0f); +PARAM_DEFINE_FLOAT(FWB_THE2Q_D, 0.0f); +PARAM_DEFINE_FLOAT(FWB_THE2Q_D_LP, 0.0f); +PARAM_DEFINE_FLOAT(FWB_THE2Q_I_MAX, 0.0f); + +// h -> thr +PARAM_DEFINE_FLOAT(FWB_H2THR_P, 0.01f); // altitude to throttle PID +PARAM_DEFINE_FLOAT(FWB_H2THR_I, 0.0f); +PARAM_DEFINE_FLOAT(FWB_H2THR_D, 0.0f); +PARAM_DEFINE_FLOAT(FWB_H2THR_D_LP, 0.0f); +PARAM_DEFINE_FLOAT(FWB_H2THR_I_MAX, 0.0f); + +// crosstrack +PARAM_DEFINE_FLOAT(FWB_XT2YAW_MAX, 1.57f); // cross-track to yaw angle limit 90 deg +PARAM_DEFINE_FLOAT(FWB_XT2YAW, 0.005f); // cross-track to yaw angle gain + +// speed command +PARAM_DEFINE_FLOAT(FWB_V_MIN, 10.0f); // minimum commanded velocity +PARAM_DEFINE_FLOAT(FWB_V_CMD, 12.0f); // commanded velocity +PARAM_DEFINE_FLOAT(FWB_V_MAX, 16.0f); // maximum commanded velocity + +// rate of climb +// this is what rate of climb is commanded (in m/s) +// when the pitch stick is fully defelcted in simple mode +PARAM_DEFINE_FLOAT(FWB_ROC_MAX, 1.0f); + +// rate of climb -> thr +PARAM_DEFINE_FLOAT(FWB_ROC2THR_P, 0.01f); // rate of climb to throttle PID +PARAM_DEFINE_FLOAT(FWB_ROC2THR_I, 0.0f); +PARAM_DEFINE_FLOAT(FWB_ROC2THR_D, 0.0f); +PARAM_DEFINE_FLOAT(FWB_ROC2THR_D_LP, 0.0f); +PARAM_DEFINE_FLOAT(FWB_ROC2THR_I_MAX, 0.0f); + +PARAM_DEFINE_FLOAT(FWB_TRIM_THR, 0.8f); // trim throttle (0,1) diff --git a/src/modules/fixedwing_pos_control/fixedwing_pos_control_main.c b/src/modules/fixedwing_pos_control/fixedwing_pos_control_main.c new file mode 100644 index 000000000..71c78f5b8 --- /dev/null +++ b/src/modules/fixedwing_pos_control/fixedwing_pos_control_main.c @@ -0,0 +1,479 @@ +/**************************************************************************** + * + * Copyright (C) 2012 PX4 Development Team. All rights reserved. + * Author: @author Thomas Gubler + * @author Doug Weibel + * + * 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 fixedwing_pos_control.c + * Implementation of a fixed wing attitude controller. + */ + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +/* + * Controller parameters, accessible via MAVLink + * + */ +PARAM_DEFINE_FLOAT(FW_HEAD_P, 0.1f); +PARAM_DEFINE_FLOAT(FW_HEADR_I, 0.1f); +PARAM_DEFINE_FLOAT(FW_HEADR_LIM, 1.5f); //TODO: think about reasonable value +PARAM_DEFINE_FLOAT(FW_XTRACK_P, 0.01745f); // Radians per meter off track +PARAM_DEFINE_FLOAT(FW_ALT_P, 0.1f); +PARAM_DEFINE_FLOAT(FW_ROLL_LIM, 0.7f); // Roll angle limit in radians +PARAM_DEFINE_FLOAT(FW_HEADR_P, 0.1f); +PARAM_DEFINE_FLOAT(FW_PITCH_LIM, 0.35f); /**< Pitch angle limit in radians per second */ + +struct fw_pos_control_params { + float heading_p; + float headingr_p; + float headingr_i; + float headingr_lim; + float xtrack_p; + float altitude_p; + float roll_lim; + float pitch_lim; +}; + +struct fw_pos_control_param_handles { + param_t heading_p; + param_t headingr_p; + param_t headingr_i; + param_t headingr_lim; + param_t xtrack_p; + param_t altitude_p; + param_t roll_lim; + param_t pitch_lim; +}; + + +struct planned_path_segments_s { + bool segment_type; + double start_lat; // Start of line or center of arc + double start_lon; + double end_lat; + double end_lon; + float radius; // Radius of arc + float arc_start_bearing; // Bearing from center to start of arc + float arc_sweep; // Angle (radians) swept out by arc around center. + // Positive for clockwise, negative for counter-clockwise +}; + + +/* Prototypes */ +/* Internal Prototypes */ +static int parameters_init(struct fw_pos_control_param_handles *h); +static int parameters_update(const struct fw_pos_control_param_handles *h, struct fw_pos_control_params *p); + +/** + * Deamon management function. + */ +__EXPORT int fixedwing_pos_control_main(int argc, char *argv[]); + +/** + * Mainloop of deamon. + */ +int fixedwing_pos_control_thread_main(int argc, char *argv[]); + +/** + * Print the correct usage. + */ +static void usage(const char *reason); + +/* Variables */ +static bool thread_should_exit = false; /**< Deamon exit flag */ +static bool thread_running = false; /**< Deamon status flag */ +static int deamon_task; /**< Handle of deamon task / thread */ + + +/** + * Parameter management + */ +static int parameters_init(struct fw_pos_control_param_handles *h) +{ + /* PID parameters */ + h->heading_p = param_find("FW_HEAD_P"); + h->headingr_p = param_find("FW_HEADR_P"); + h->headingr_i = param_find("FW_HEADR_I"); + h->headingr_lim = param_find("FW_HEADR_LIM"); + h->xtrack_p = param_find("FW_XTRACK_P"); + h->altitude_p = param_find("FW_ALT_P"); + h->roll_lim = param_find("FW_ROLL_LIM"); + h->pitch_lim = param_find("FW_PITCH_LIM"); + + return OK; +} + +static int parameters_update(const struct fw_pos_control_param_handles *h, struct fw_pos_control_params *p) +{ + param_get(h->heading_p, &(p->heading_p)); + param_get(h->headingr_p, &(p->headingr_p)); + param_get(h->headingr_i, &(p->headingr_i)); + param_get(h->headingr_lim, &(p->headingr_lim)); + param_get(h->xtrack_p, &(p->xtrack_p)); + param_get(h->altitude_p, &(p->altitude_p)); + param_get(h->roll_lim, &(p->roll_lim)); + param_get(h->pitch_lim, &(p->pitch_lim)); + + return OK; +} + + +/* Main Thread */ +int fixedwing_pos_control_thread_main(int argc, char *argv[]) +{ + /* read arguments */ + bool verbose = false; + + for (int i = 1; i < argc; i++) { + if (strcmp(argv[i], "-v") == 0 || strcmp(argv[i], "--verbose") == 0) { + verbose = true; + } + } + + /* welcome user */ + printf("[fixedwing pos control] started\n"); + + /* declare and safely initialize all structs */ + struct vehicle_global_position_s global_pos; + memset(&global_pos, 0, sizeof(global_pos)); + struct vehicle_global_position_s start_pos; // Temporary variable, replace with + memset(&start_pos, 0, sizeof(start_pos)); // previous waypoint when available + struct vehicle_global_position_setpoint_s global_setpoint; + memset(&global_setpoint, 0, sizeof(global_setpoint)); + struct vehicle_attitude_s att; + memset(&att, 0, sizeof(att)); + struct crosstrack_error_s xtrack_err; + memset(&xtrack_err, 0, sizeof(xtrack_err)); + struct parameter_update_s param_update; + memset(¶m_update, 0, sizeof(param_update)); + + /* output structs */ + struct vehicle_attitude_setpoint_s attitude_setpoint; + memset(&attitude_setpoint, 0, sizeof(attitude_setpoint)); + + /* publish attitude setpoint */ + attitude_setpoint.roll_body = 0.0f; + attitude_setpoint.pitch_body = 0.0f; + attitude_setpoint.yaw_body = 0.0f; + attitude_setpoint.thrust = 0.0f; + orb_advert_t attitude_setpoint_pub = orb_advertise(ORB_ID(vehicle_attitude_setpoint), &attitude_setpoint); + + /* subscribe */ + int global_pos_sub = orb_subscribe(ORB_ID(vehicle_global_position)); + int global_setpoint_sub = orb_subscribe(ORB_ID(vehicle_global_position_setpoint)); + int att_sub = orb_subscribe(ORB_ID(vehicle_attitude)); + int param_sub = orb_subscribe(ORB_ID(parameter_update)); + + /* Setup of loop */ + struct pollfd fds[2] = { + { .fd = param_sub, .events = POLLIN }, + { .fd = att_sub, .events = POLLIN } + }; + bool global_sp_updated_set_once = false; + + float psi_track = 0.0f; + + int counter = 0; + + struct fw_pos_control_params p; + struct fw_pos_control_param_handles h; + + PID_t heading_controller; + PID_t heading_rate_controller; + PID_t offtrack_controller; + PID_t altitude_controller; + + parameters_init(&h); + parameters_update(&h, &p); + pid_init(&heading_controller, p.heading_p, 0.0f, 0.0f, 0.0f, 10000.0f, PID_MODE_DERIVATIV_NONE); //arbitrary high limit + pid_init(&heading_rate_controller, p.headingr_p, p.headingr_i, 0.0f, 0.0f, p.roll_lim, PID_MODE_DERIVATIV_NONE); + pid_init(&altitude_controller, p.altitude_p, 0.0f, 0.0f, 0.0f, p.pitch_lim, PID_MODE_DERIVATIV_NONE); + pid_init(&offtrack_controller, p.xtrack_p, 0.0f, 0.0f, 0.0f , 60.0f * M_DEG_TO_RAD, PID_MODE_DERIVATIV_NONE); //TODO: remove hardcoded value + + /* error and performance monitoring */ + perf_counter_t fw_interval_perf = perf_alloc(PC_INTERVAL, "fixedwing_pos_control_interval"); + perf_counter_t fw_err_perf = perf_alloc(PC_COUNT, "fixedwing_pos_control_err"); + + while (!thread_should_exit) { + /* wait for a sensor update, check for exit condition every 500 ms */ + int ret = poll(fds, 2, 500); + + if (ret < 0) { + /* poll error, count it in perf */ + perf_count(fw_err_perf); + + } else if (ret == 0) { + /* no return value, ignore */ + } else { + + /* only update parameters if they changed */ + if (fds[0].revents & POLLIN) { + /* read from param to clear updated flag */ + struct parameter_update_s update; + orb_copy(ORB_ID(parameter_update), param_sub, &update); + + /* update parameters from storage */ + parameters_update(&h, &p); + pid_set_parameters(&heading_controller, p.heading_p, 0, 0, 0, 10000.0f); //arbitrary high limit + pid_set_parameters(&heading_rate_controller, p.headingr_p, p.headingr_i, 0, 0, p.roll_lim); + pid_set_parameters(&altitude_controller, p.altitude_p, 0, 0, 0, p.pitch_lim); + pid_set_parameters(&offtrack_controller, p.xtrack_p, 0, 0, 0, 60.0f * M_DEG_TO_RAD); //TODO: remove hardcoded value + } + + /* only run controller if attitude changed */ + if (fds[1].revents & POLLIN) { + + + static uint64_t last_run = 0; + const float deltaT = (hrt_absolute_time() - last_run) / 1000000.0f; + last_run = hrt_absolute_time(); + + /* check if there is a new position or setpoint */ + bool pos_updated; + orb_check(global_pos_sub, &pos_updated); + bool global_sp_updated; + orb_check(global_setpoint_sub, &global_sp_updated); + + /* load local copies */ + orb_copy(ORB_ID(vehicle_attitude), att_sub, &att); + + if (pos_updated) { + orb_copy(ORB_ID(vehicle_global_position), global_pos_sub, &global_pos); + } + + if (global_sp_updated) { + orb_copy(ORB_ID(vehicle_global_position_setpoint), global_setpoint_sub, &global_setpoint); + start_pos = global_pos; //for now using the current position as the startpoint (= approx. last waypoint because the setpoint switch occurs at the waypoint) + global_sp_updated_set_once = true; + psi_track = get_bearing_to_next_waypoint((double)global_pos.lat / (double)1e7d, (double)global_pos.lon / (double)1e7d, + (double)global_setpoint.lat / (double)1e7d, (double)global_setpoint.lon / (double)1e7d); + + printf("next wp direction: %0.4f\n", (double)psi_track); + } + + /* Simple Horizontal Control */ + if (global_sp_updated_set_once) { + // if (counter % 100 == 0) + // printf("lat_sp %d, ln_sp %d, lat: %d, lon: %d\n", global_setpoint.lat, global_setpoint.lon, global_pos.lat, global_pos.lon); + + /* calculate crosstrack error */ + // Only the case of a straight line track following handled so far + int distance_res = get_distance_to_line(&xtrack_err, (double)global_pos.lat / (double)1e7d, (double)global_pos.lon / (double)1e7d, + (double)start_pos.lat / (double)1e7d, (double)start_pos.lon / (double)1e7d, + (double)global_setpoint.lat / (double)1e7d, (double)global_setpoint.lon / (double)1e7d); + + // XXX what is xtrack_err.past_end? + if (distance_res == OK /*&& !xtrack_err.past_end*/) { + + float delta_psi_c = pid_calculate(&offtrack_controller, 0, xtrack_err.distance, 0.0f, 0.0f); //p.xtrack_p * xtrack_err.distance + + float psi_c = psi_track + delta_psi_c; + float psi_e = psi_c - att.yaw; + + /* wrap difference back onto -pi..pi range */ + psi_e = _wrap_pi(psi_e); + + if (verbose) { + printf("xtrack_err.distance %.4f ", (double)xtrack_err.distance); + printf("delta_psi_c %.4f ", (double)delta_psi_c); + printf("psi_c %.4f ", (double)psi_c); + printf("att.yaw %.4f ", (double)att.yaw); + printf("psi_e %.4f ", (double)psi_e); + } + + /* calculate roll setpoint, do this artificially around zero */ + float delta_psi_rate_c = pid_calculate(&heading_controller, psi_e, 0.0f, 0.0f, 0.0f); + float psi_rate_track = 0; //=V_gr/r_track , this will be needed for implementation of arc following + float psi_rate_c = delta_psi_rate_c + psi_rate_track; + + /* limit turn rate */ + if (psi_rate_c > p.headingr_lim) { + psi_rate_c = p.headingr_lim; + + } else if (psi_rate_c < -p.headingr_lim) { + psi_rate_c = -p.headingr_lim; + } + + float psi_rate_e = psi_rate_c - att.yawspeed; + + // XXX sanity check: Assume 10 m/s stall speed and no stall condition + float ground_speed = sqrtf(global_pos.vx * global_pos.vx + global_pos.vy * global_pos.vy); + + if (ground_speed < 10.0f) { + ground_speed = 10.0f; + } + + float psi_rate_e_scaled = psi_rate_e * ground_speed / 9.81f; //* V_gr / g + + attitude_setpoint.roll_body = pid_calculate(&heading_rate_controller, psi_rate_e_scaled, 0.0f, 0.0f, deltaT); + + if (verbose) { + printf("psi_rate_c %.4f ", (double)psi_rate_c); + printf("psi_rate_e_scaled %.4f ", (double)psi_rate_e_scaled); + printf("rollbody %.4f\n", (double)attitude_setpoint.roll_body); + } + + if (verbose && counter % 100 == 0) + printf("xtrack_err.distance: %0.4f, delta_psi_c: %0.4f\n", xtrack_err.distance, delta_psi_c); + + } else { + if (verbose && counter % 100 == 0) + printf("distance_res: %d, past_end %d\n", distance_res, xtrack_err.past_end); + } + + /* Very simple Altitude Control */ + if (pos_updated) { + + //TODO: take care of relative vs. ab. altitude + attitude_setpoint.pitch_body = pid_calculate(&altitude_controller, global_setpoint.altitude, global_pos.alt, 0.0f, 0.0f); + + } + + // XXX need speed control + attitude_setpoint.thrust = 0.7f; + + /* publish the attitude setpoint */ + orb_publish(ORB_ID(vehicle_attitude_setpoint), attitude_setpoint_pub, &attitude_setpoint); + + /* measure in what intervals the controller runs */ + perf_count(fw_interval_perf); + + counter++; + + } else { + // XXX no setpoint, decent default needed (loiter?) + } + } + } + } + + printf("[fixedwing_pos_control] exiting.\n"); + thread_running = false; + + + close(attitude_setpoint_pub); + + fflush(stdout); + exit(0); + + return 0; + +} + +/* Startup Functions */ + +static void +usage(const char *reason) +{ + if (reason) + fprintf(stderr, "%s\n", reason); + + fprintf(stderr, "usage: fixedwing_pos_control {start|stop|status}\n\n"); + exit(1); +} + +/** + * The deamon app only briefly exists to start + * the background job. The stack size assigned in the + * Makefile does only apply to this management task. + * + * The actual stack size should be set in the call + * to task_create(). + */ +int fixedwing_pos_control_main(int argc, char *argv[]) +{ + if (argc < 1) + usage("missing command"); + + if (!strcmp(argv[1], "start")) { + + if (thread_running) { + printf("fixedwing_pos_control already running\n"); + /* this is not an error */ + exit(0); + } + + thread_should_exit = false; + deamon_task = task_spawn("fixedwing_pos_control", + SCHED_DEFAULT, + SCHED_PRIORITY_MAX - 20, + 2048, + fixedwing_pos_control_thread_main, + (argv) ? (const char **)&argv[2] : (const char **)NULL); + thread_running = true; + exit(0); + } + + if (!strcmp(argv[1], "stop")) { + thread_should_exit = true; + exit(0); + } + + if (!strcmp(argv[1], "status")) { + if (thread_running) { + printf("\tfixedwing_pos_control is running\n"); + + } else { + printf("\tfixedwing_pos_control not started\n"); + } + + exit(0); + } + + usage("unrecognized command"); + exit(1); +} diff --git a/src/modules/fixedwing_pos_control/module.mk b/src/modules/fixedwing_pos_control/module.mk new file mode 100644 index 000000000..b976377e9 --- /dev/null +++ b/src/modules/fixedwing_pos_control/module.mk @@ -0,0 +1,40 @@ +############################################################################ +# +# Copyright (c) 2012, 2013 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. +# +############################################################################ + +# +# Fixedwing PositionControl application +# + +MODULE_COMMAND = fixedwing_pos_control + +SRCS = fixedwing_pos_control_main.c -- cgit v1.2.3