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115 lines
3.8 KiB
C++
115 lines
3.8 KiB
C++
/****************************************************************************
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*
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* Copyright (c) 2019 ECL Development Team. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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* 3. Neither the name PX4 nor the names of its contributors may be
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* used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
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* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
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* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
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* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
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* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
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* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
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* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*
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****************************************************************************/
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/**
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* This class is providing methods to feed the ECL EKF with measurement.
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* It takes a pointer to the Ekf object and will manipulate the object
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* by call set*Data functions.
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* It simulates the time to allow for sensor data being set at certain rate
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* and also calls the update method of the EKF
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* @author Kamil Ritz <ka.ritz@hotmail.com>
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*/
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#pragma once
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#include "EKF/ekf.h"
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#include <math.h>
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namespace simulator
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{
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class SensorSimulator
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{
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public:
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SensorSimulator(Ekf* ekf);
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~SensorSimulator();
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void update_with_const_sensors(uint32_t duration_us,
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Vector3f ang_vel = Vector3f{0.0f,0.0f,0.0f},
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Vector3f accel = Vector3f{0.0f,0.0f,-CONSTANTS_ONE_G},
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Vector3f mag_data = Vector3f{0.2f, 0.0f, 0.4f},
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float baro_data = 122.2f);
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void setGpsFusionTrue(){ _fuse_gps = true; }
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void setGpsFusionFalse(){ _fuse_gps = false; }
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private:
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Ekf* _ekf;
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// current time
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uint32_t _t_us{0};
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// Basics sensors
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const uint32_t _imu_dt_us{4000}; // 250 Hz Period between IMU updates
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const uint32_t _baro_dt_us{12500}; // 80 Hz Period between barometer updates
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const uint32_t _mag_dt_us{12500}; // 80 Hz Period between magnetometer updates
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const uint32_t _gps_dt_us{200000}; // 5 Hz Period between GPS updates
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// const uint32_t _flow_dt_us{20000}; // 50 Hz Period between Flow updates
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// const uint32_t _ev_dt_us{40000}; // 25 Hz Period between external vision updates
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uint32_t _update_dt_us{}; // greatest common divider of all basic sensor periods
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// Flags that control if a sensor is fused
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bool _fuse_imu{true};
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bool _fuse_baro{true};
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bool _fuse_mag{true};
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// Not expected to be fused from beginning
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bool _fuse_gps{false};
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// bool _fuse_flow{false};
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// bool _fuse_ev{false};
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gps_message _gps_message{};
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// used for debugging until now, replace with tests
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// counter of how many sensor measurement are put into Ekf
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uint32_t _counter_imu{0};
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uint32_t _counter_baro{0};
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uint32_t _counter_mag{0};
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void setGpsMessageToDefaul();
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};
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// Compute greatest common divider
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inline uint32_t gcd(uint32_t a, uint32_t b)
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{
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return b == 0 ? a : gcd(b, a % b);
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}
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} // end of namespace
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