VehicleAcceleration.hpp 3.94 KB
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#pragma once

#include <lib/sensor_calibration/Accelerometer.hpp>
#include <lib/mathlib/math/Limits.hpp>
#include <lib/matrix/matrix/math.hpp>
#include <lib/mathlib/math/filter/LowPassFilter2p.hpp>
#include <px4_platform_common/log.h>
#include <px4_platform_common/module_params.h>
#include <px4_platform_common/px4_config.h>
#include <px4_platform_common/px4_work_queue/ScheduledWorkItem.hpp>
#include <uORB/Publication.hpp>
#include <uORB/Subscription.hpp>
#include <uORB/SubscriptionCallback.hpp>
#include <uORB/topics/estimator_selector_status.h>
#include <uORB/topics/estimator_sensor_bias.h>
#include <uORB/topics/parameter_update.h>
#include <uORB/topics/sensor_accel.h>
#include <uORB/topics/sensor_selection.h>
#include <uORB/topics/vehicle_acceleration.h>

using namespace time_literals;

namespace sensors
{

class VehicleAcceleration : public ModuleParams, public px4::ScheduledWorkItem
{
public:
	VehicleAcceleration();
	~VehicleAcceleration() override;

	bool Start();
	void Stop();

	void PrintStatus();

private:
	void Run() override;

	void CheckAndUpdateFilters();
	void ParametersUpdate(bool force = false);
	void SensorBiasUpdate(bool force = false);
	bool SensorSelectionUpdate(bool force = false);

	static constexpr int MAX_SENSOR_COUNT = 4;

	uORB::Publication<vehicle_acceleration_s> _vehicle_acceleration_pub{ORB_ID(vehicle_acceleration)};

	uORB::Subscription _estimator_selector_status_sub{ORB_ID(estimator_selector_status)};
	uORB::Subscription _estimator_sensor_bias_sub{ORB_ID(estimator_sensor_bias)};

	uORB::SubscriptionInterval _parameter_update_sub{ORB_ID(parameter_update), 1_s};

	uORB::SubscriptionCallbackWorkItem _sensor_selection_sub{this, ORB_ID(sensor_selection)};
	uORB::SubscriptionCallbackWorkItem _sensor_sub{this, ORB_ID(sensor_accel)};

	calibration::Accelerometer _calibration{};

	matrix::Vector3f _bias{};

	matrix::Vector3f _acceleration_prev{};

	static constexpr const float kInitialRateHz{1000.f}; /**< sensor update rate used for initialization */
	float _filter_sample_rate{NAN};

	math::LowPassFilter2p<matrix::Vector3f> _lp_filter{kInitialRateHz, 30.f};

	DEFINE_PARAMETERS(
		(ParamFloat<px4::params::IMU_ACCEL_CUTOFF>) _param_imu_accel_cutoff,
		(ParamInt<px4::params::IMU_INTEG_RATE>) _param_imu_integ_rate
	)
};

} // namespace sensors