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Diffstat (limited to 'src/modules/mc_pos_control_multiplatform/mc_pos_control.h')
| -rw-r--r-- | src/modules/mc_pos_control_multiplatform/mc_pos_control.h | 219 |
1 files changed, 219 insertions, 0 deletions
diff --git a/src/modules/mc_pos_control_multiplatform/mc_pos_control.h b/src/modules/mc_pos_control_multiplatform/mc_pos_control.h new file mode 100644 index 000000000..05bd1387b --- /dev/null +++ b/src/modules/mc_pos_control_multiplatform/mc_pos_control.h @@ -0,0 +1,219 @@ +/**************************************************************************** + * + * Copyright (c) 2013 - 2015 PX4 Development Team. All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in + * the documentation and/or other materials provided with the + * distribution. + * 3. Neither the name PX4 nor the names of its contributors may be + * used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS + * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE + * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, + * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, + * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS + * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED + * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN + * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGE. + * + ****************************************************************************/ + +/** + * @file mc_pos_control.h + * Multicopter position controller. + * + * @author Anton Babushkin <anton.babushkin@me.com> + * @author Thomas Gubler <thomasgubler@gmail.com> + */ + +#pragma once + +#include <px4.h> +#include <cstdio> +#include <stdlib.h> +#include <string.h> +#include <unistd.h> +#include <fcntl.h> +#include <errno.h> +#include <math.h> +// #include <poll.h> +// #include <drivers/drv_hrt.h> +// #include <arch/board/board.h> +// #include <systemlib/systemlib.h> +#include <mathlib/mathlib.h> +#include <lib/geo/geo.h> +// #include <mavlink/mavlink_log.h> + +using namespace px4; + +class MulticopterPositionControl +{ +public: + /** + * Constructor + */ + MulticopterPositionControl(); + + /** + * Destructor, also kills task. + */ + ~MulticopterPositionControl(); + + /* Callbacks for topics */ + void handle_vehicle_attitude(const px4_vehicle_attitude &msg); + void handle_parameter_update(const px4_parameter_update &msg); + + void spin() { _n.spin(); } + +protected: + const float alt_ctl_dz = 0.2f; + + bool _task_should_exit; /**< if true, task should exit */ + int _control_task; /**< task handle for task */ + int _mavlink_fd; /**< mavlink fd */ + + Publisher<px4_vehicle_attitude_setpoint> *_att_sp_pub; /**< attitude setpoint publication */ + Publisher<px4_vehicle_local_position_setpoint> *_local_pos_sp_pub; /**< vehicle local position setpoint publication */ + Publisher<px4_vehicle_global_velocity_setpoint> *_global_vel_sp_pub; /**< vehicle global velocity setpoint publication */ + + + Subscriber<px4_vehicle_attitude> *_att; /**< vehicle attitude */ + Subscriber<px4_vehicle_attitude_setpoint> *_v_att_sp; /**< vehicle attitude setpoint */ + Subscriber<px4_vehicle_control_mode> *_control_mode; /**< vehicle control mode */ + Subscriber<px4_parameter_update> *_parameter_update; /**< parameter update */ + Subscriber<px4_manual_control_setpoint> *_manual_control_sp; /**< manual control setpoint */ + Subscriber<px4_actuator_armed> *_armed; /**< actuator arming status */ + Subscriber<px4_vehicle_local_position> *_local_pos; /**< local position */ + Subscriber<px4_position_setpoint_triplet> *_pos_sp_triplet; /**< local position */ + Subscriber<px4_vehicle_local_position_setpoint> *_local_pos_sp; /**< local position */ + Subscriber<px4_vehicle_global_velocity_setpoint> *_global_vel_sp; /**< local position */ + + px4_vehicle_attitude_setpoint _att_sp_msg; + px4_vehicle_local_position_setpoint _local_pos_sp_msg; + px4_vehicle_global_velocity_setpoint _global_vel_sp_msg; + + px4::NodeHandle _n; + + + struct { + px4_param_t thr_min; + px4_param_t thr_max; + px4_param_t z_p; + px4_param_t z_vel_p; + px4_param_t z_vel_i; + px4_param_t z_vel_d; + px4_param_t z_vel_max; + px4_param_t z_ff; + px4_param_t xy_p; + px4_param_t xy_vel_p; + px4_param_t xy_vel_i; + px4_param_t xy_vel_d; + px4_param_t xy_vel_max; + px4_param_t xy_ff; + px4_param_t tilt_max_air; + px4_param_t land_speed; + px4_param_t tilt_max_land; + } _params_handles; /**< handles for interesting parameters */ + + struct { + float thr_min; + float thr_max; + float tilt_max_air; + float land_speed; + float tilt_max_land; + + math::Vector<3> pos_p; + math::Vector<3> vel_p; + math::Vector<3> vel_i; + math::Vector<3> vel_d; + math::Vector<3> vel_ff; + math::Vector<3> vel_max; + math::Vector<3> sp_offs_max; + } _params; + + struct map_projection_reference_s _ref_pos; + float _ref_alt; + uint64_t _ref_timestamp; + + bool _reset_pos_sp; + bool _reset_alt_sp; + bool _mode_auto; + + math::Vector<3> _pos; + math::Vector<3> _pos_sp; + math::Vector<3> _vel; + math::Vector<3> _vel_sp; + math::Vector<3> _vel_prev; /**< velocity on previous step */ + math::Vector<3> _vel_ff; + math::Vector<3> _sp_move_rate; + + math::Vector<3> _thrust_int; + math::Matrix<3, 3> _R; + + /** + * Update our local parameter cache. + */ + int parameters_update(); + + /** + * Update control outputs + */ + void control_update(); + + static float scale_control(float ctl, float end, float dz); + + /** + * Update reference for local position projection + */ + void update_ref(); + /** + * Reset position setpoint to current position + */ + void reset_pos_sp(); + + /** + * Reset altitude setpoint to current altitude + */ + void reset_alt_sp(); + + /** + * Check if position setpoint is too far from current position and adjust it if needed. + */ + void limit_pos_sp_offset(); + + /** + * Set position setpoint using manual control + */ + void control_manual(float dt); + + /** + * Set position setpoint using offboard control + */ + void control_offboard(float dt); + + bool cross_sphere_line(const math::Vector<3>& sphere_c, float sphere_r, + const math::Vector<3> line_a, const math::Vector<3> line_b, math::Vector<3>& res); + + /** + * Set position setpoint for AUTO + */ + void control_auto(float dt); + + /** + * Select between barometric and global (AMSL) altitudes + */ + void select_alt(bool global); +}; |