204 lines
6.4 KiB
C++
204 lines
6.4 KiB
C++
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/*
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* TrackingPositionScrt.cpp
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*
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* Created on: 26 янв. 2018 г.
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* Author: titov
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*/
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#include "TrackingPositionScrt.hh"
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using processing::TrackingPositionScrt;
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void TrackingPositionScrt::configure( const Setting & setting ) {
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using namespace std;
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_L1Base = setting.L1;
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_L2Base = setting.L2;
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_L1Ts = _L1Base * _Ts,
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_L2Ts = _L2Base * _Ts;
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_ThetaZero = setting.ThetaNull,
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_Np_Nr = setting.Np / setting.Nr;
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_power_max = setting.scrt_power_max * setting.scrt_power_max;
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_power_min = setting.scrt_power_min * setting.scrt_power_min;
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_Tun = math::constants::pi_2 / setting.scrt_speed_max;
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_Nerr = static_cast<unsigned int>( _Tun / _Ts );
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_1_Nr = 1.f / static_cast<float>( setting.Nr );
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_pi2_Nr = math::constants::pi2 / static_cast<float>( setting.Nr );
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}
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void TrackingPositionScrt::setSampleTime( float Ts ) {
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_L1Ts = _L1Base * Ts;
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_L2Ts = _L2Base * Ts;
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_Nerr = static_cast<unsigned int>( _Tun / Ts );
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_Ts = Ts;
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}
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processing::TrackingPositionScrt::TrackingPositionScrt(
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driver::IResolver & resolver) : scrt(resolver),
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_Ts(0.0f),
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_power_max(0.0f), _power_min(0.0f), _Tun(0.0f), _Nerr(0.0f),
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_L1Base(0.0f), _L2Base(0.0f),
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_L1Ts(0.0f), _L2Ts(0.0f),
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_ThetaZero(0.0f), _Np_Nr(0.0f),
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_1_Nr(0.0f), _pi2_Nr(0.0f),
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prev_error(0.0f), prev_scrt_sin(0.0f), prev_scrt_cos(0.0f),
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est_sens_speed(0.0f), est_sens_position_pi2(0.0f), est_sens_turn(0.0f), est_sens_error(0.0f),
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est_theta(0.0f), est_omega(0.0f),
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est_position(0.0f), est_speed(0.0f),
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error_counter(0) {}
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void TrackingPositionScrt::bad_data_handler() {
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const float demping_k = 0.5f;
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if (error_counter < _Nerr)
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error_counter++;
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else
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est_sens_speed = est_sens_error = 0.0f;
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est_sens_error = est_sens_error * demping_k;
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prev_error = est_sens_error;
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}
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void TrackingPositionScrt::process() {
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using namespace std;
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//Обновление ошибки системы.
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{
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float scrt_sin = scrt.getSinChannel();
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float scrt_cos = scrt.getCosChannel();
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//В случае не валидных данных принимаем ошибку равной нулю.
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if( isfinite(scrt_sin) && isfinite(scrt_cos) ) {
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float sin_d2 = scrt_sin * scrt_sin;
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float cos_d2 = scrt_cos * scrt_cos;
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float amp_data = ( sin_d2 + cos_d2 );
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if( amp_data < _power_max && amp_data > _power_min ) {
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float est_sin, est_cos;
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math::function::sincos(est_sens_position_pi2, &est_sin, &est_cos);
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float _1_amp_data = math::function::q_rsqrt( amp_data );
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float error_0 = ( scrt_sin * est_cos - scrt_cos * est_sin ) * _1_amp_data;
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float error_1 = ( prev_scrt_sin * est_cos - scrt_cos * est_sin ) * _1_amp_data;
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float error_2 = ( scrt_sin * est_cos - prev_scrt_cos * est_sin ) * _1_amp_data;
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float derror_0 = fabsf( prev_error - error_0 );
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float derror_1 = fabsf( prev_error - error_1 );
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float derror_2 = fabsf( prev_error - error_2 );
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est_sens_error =
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derror_0 < derror_1 and derror_0 < derror_2 ? error_0 :
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derror_1 < derror_2 ? error_1 :
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error_2;
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if( error_counter && error_counter != _Nerr )
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error_counter--;
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prev_error = est_sens_error;
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prev_scrt_sin = scrt_sin;
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prev_scrt_cos = scrt_cos;
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} else bad_data_handler();
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} else bad_data_handler();
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}
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//Сам наблюдатель:
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{
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est_sens_speed = est_sens_speed + est_sens_error * _L2Ts;
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est_sens_position_pi2 = est_sens_position_pi2 + est_sens_speed * _Ts + est_sens_error * _L1Ts;
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if( est_sens_position_pi2 < 0.0f ) {
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est_sens_turn = est_sens_turn - 1.0f;
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est_sens_position_pi2 += math::constants::pi2;
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} else if( est_sens_position_pi2 >= math::constants::pi2 ) {
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est_sens_turn = est_sens_turn + 1.0f;
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est_sens_position_pi2 -= math::constants::pi2;
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}
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}
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//Представление в электрических координатах.
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{
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est_theta = fmodf( est_sens_position_pi2 * _Np_Nr + _ThetaZero, math::constants::pi2 );
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est_omega = est_sens_speed * _Np_Nr;
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if( est_theta < 0.0f )
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est_theta = est_theta + math::constants::pi2;
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else if( est_theta >= math::constants::pi2 )
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est_theta = est_theta - math::constants::pi2;
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}
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//Представление в физических координатах.
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{
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est_speed = _1_Nr * est_sens_speed;
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est_position = _1_Nr * est_sens_position_pi2 + _pi2_Nr * est_sens_turn;
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}
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}
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bool processing::TrackingPositionScrt::Setting::isValid() {
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const Setting notValidSetting;
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if( L1 > L2 ) {
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L1 = notValidSetting.L1;
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L2 = notValidSetting.L2;
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}
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if( not Np )
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Np = notValidSetting.Np;
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if( not( ( - math::constants::pi2) < ThetaNull && ThetaNull < math::constants::pi2 ) )
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ThetaNull = notValidSetting.ThetaNull;
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if( scrt_power_max < 0.0f )
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scrt_power_max = notValidSetting.scrt_power_max;
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if( scrt_power_min < 0.0f )
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scrt_power_min = notValidSetting.scrt_power_min;
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if( scrt_power_min >= scrt_power_max ) {
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scrt_power_min = notValidSetting.scrt_power_min;
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scrt_power_max = notValidSetting.scrt_power_max;
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}
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if( scrt_speed_max <= 0.0f )
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scrt_speed_max = notValidSetting.scrt_speed_max;
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if( not Nr )
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Nr = notValidSetting.Nr;
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return L1 != notValidSetting.L1
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and L2 != notValidSetting.L2
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and ThetaNull != notValidSetting.ThetaNull
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and Np != notValidSetting.Np
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and scrt_power_max != notValidSetting.scrt_power_max
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and scrt_power_min != notValidSetting.scrt_power_min
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and scrt_speed_max != notValidSetting.scrt_speed_max
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and Nr != notValidSetting.Nr;
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}
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