Acconeer SDK: Src/use_cases/example_apps/example_surface_velocity.c File Reference

#include <complex.h>
#include <math.h>
#include <stdbool.h>
#include <stdint.h>
#include <stdio.h>
#include <string.h>
#include "acc_alg_basic_utils.h"
#include "acc_algorithm.h"
#include "acc_config.h"
#include "acc_definitions_a121.h"
#include "acc_definitions_common.h"
#include "acc_hal_definitions_a121.h"
#include "acc_hal_integration_a121.h"
#include "acc_integration.h"
#include "acc_integration_log.h"
#include "acc_processing.h"
#include "acc_rss_a121.h"
#include "acc_sensor.h"
#include "acc_version.h"

Go to the source code of this file.

Data Structures
struct	acc_surface_velocity_config_t
	Surface velocity application config container. More...

struct	acc_surface_velocity_handle_t
	Surface velocity application context handle. More...

struct	acc_surface_velocity_result_t
	Surface velocity application results container. More...

Macros
#define	CONFIG_SURFACE_DISTANCE (1.0f)

#define	CONFIG_SENSOR_ANGLE (45.0f)

#define	CONFIG_THRESHOLD_SENSITIVITY (0.15f)

#define	CONFIG_PSD_LP_COEFF (0.75f)

#define	CONFIG_VELOCITY_LP_COEFF (0.98f)

#define	CONFIG_SWEEP_RATE (3000U)

#define	CONFIG_HWAAS (16U)

#define	SENSOR_ID (1U)

#define	SENSOR_TIMEOUT_MS (1000U)

#define	MIN_PEAK_VS 0.1f

Functions
static void	cleanup (acc_surface_velocity_handle_t handle, acc_surface_velocity_config_t config)

static void	set_config (acc_surface_velocity_config_t *config)

static void	set_prf (acc_surface_velocity_config_t *config)

static void	set_profile (acc_surface_velocity_config_t *config)

static bool	validate_config (acc_surface_velocity_config_t *config)

static bool	do_sensor_calibration_and_prepare (acc_surface_velocity_handle_t handle, acc_surface_velocity_config_t config)

static bool	init_handle (acc_surface_velocity_handle_t handle, acc_surface_velocity_config_t config)

static bool	init_sensor_resources (acc_surface_velocity_handle_t handle, acc_surface_velocity_config_t config)

static bool	measure (acc_surface_velocity_handle_t *handle)

static bool	process (acc_surface_velocity_handle_t handle, acc_surface_velocity_result_t result)

static void	print_result (acc_surface_velocity_result_t *result)

static void	update_threshold (acc_surface_velocity_handle_t *handle)

static bool	get_velocity_estimate (acc_surface_velocity_handle_t *handle)

static float	get_angle_correction (float surface_distance, float distance)

static uint16_t	calc_power_spectral_density (acc_surface_velocity_handle_t *handle)
	Calculate PSD (power spectral density) More...

static float	get_perceived_wavelength (void)

static float	calc_dynamic_smoothing_factor (float static_sf, uint32_t update_count)
	Calculate a dynamic smoothing factor. More...

int	acconeer_main (int argc, char *argv[])
	Assembly test example. More...

Macro Definition Documentation

◆ CONFIG_HWAAS

#define CONFIG_HWAAS (16U)

[Default app config - can be adapted to reflect the setup]

Hardware accelerated average sampling.

Definition at line 79 of file example_surface_velocity.c.

◆ CONFIG_PSD_LP_COEFF

#define CONFIG_PSD_LP_COEFF (0.75f)

[Default app config - can be adapted to reflect the setup]

Low-pass filtered power spectral density coefficient.

Affects the stability of the estimate.

Definition at line 56 of file example_surface_velocity.c.

◆ CONFIG_SENSOR_ANGLE

#define CONFIG_SENSOR_ANGLE (45.0f)

[Default app config - can be adapted to reflect the setup]

Angle of the sensor compared to the surface.

Definition at line 40 of file example_surface_velocity.c.

◆ CONFIG_SURFACE_DISTANCE

#define CONFIG_SURFACE_DISTANCE (1.0f)

[Default app config - can be adapted to reflect the setup]

Distance to surface in meters.

Definition at line 33 of file example_surface_velocity.c.

◆ CONFIG_SWEEP_RATE

#define CONFIG_SWEEP_RATE (3000U)

[Default app config - can be adapted to reflect the setup]

The sweep rate for sweeps in a frame during measurement.

Definition at line 72 of file example_surface_velocity.c.

◆ CONFIG_THRESHOLD_SENSITIVITY

#define CONFIG_THRESHOLD_SENSITIVITY (0.15f)

[Default app config - can be adapted to reflect the setup]

Threshold level sensitivity.

Definition at line 47 of file example_surface_velocity.c.

◆ CONFIG_VELOCITY_LP_COEFF

#define CONFIG_VELOCITY_LP_COEFF (0.98f)

[Default app config - can be adapted to reflect the setup]

Low-pass filtered velocity coefficient.

Affects the stability of the estimate.

Definition at line 65 of file example_surface_velocity.c.

◆ MIN_PEAK_VS

#define MIN_PEAK_VS 0.1f

Definition at line 84 of file example_surface_velocity.c.

◆ SENSOR_ID

#define SENSOR_ID (1U)

Definition at line 81 of file example_surface_velocity.c.

◆ SENSOR_TIMEOUT_MS

#define SENSOR_TIMEOUT_MS (1000U)

Definition at line 82 of file example_surface_velocity.c.

Function Documentation

◆ acconeer_main()

int acconeer_main	(	int	argc,
		char *	argv[]
	)

Assembly test example.

Touchless button application.

Tank level reference application.

Smart presence reference application.

Parking application.

Breathing example application.

Waste level application.

Vibration example.

Surface velocity example application.

Service subsweeps example.

Service multple configurations example.

Low power service example.

Service sensor calibration caching example.

Service example.

Processing subtract adaptive background example.

Processing static presence example.

Processing peak interpolation example.

Processing noncoherent mean example.

Processing coherent mean example.

Processing amplitude example.

hand motion application

Detector presence example with multiple configurations.

Low power detector presence example.

Detector presence example.

Detector distance example with iq data print.

Distance detector low power example.

Detector distance with calibration caching example.

Detector distance example.

Control helper example.

Cargo application.

Returns: Returns EXIT_SUCCESS if successful, otherwise EXIT_FAILURE

Test if measure on wake up is enable Do a measurement if the the detector is ready (configured and calibrated)

Test if measure on wake up is enable Do a measurement if the the detector is ready (configured and calibrated)

Detector filters and states are reset on prepare (reconfiguration) to avoid risk of false detections when switching back to a zone.

Detector filters and states are reset on prepare (reconfiguration) to avoid risk of false detections when switching back to a zone.

Definition at line 202 of file example_surface_velocity.c.

◆ calc_dynamic_smoothing_factor()

static float calc_dynamic_smoothing_factor	(	float	static_sf,
		uint32_t	update_count
	)

static

Calculate a dynamic smoothing factor.

Parameters

[in]	static_sf	The target smoothing factor that will be used after the first sweeps
[in]	update_count	The update count should be 0 for the first sweep and increased by one for each update

Returns: Dynamic smoothing factor

Definition at line 989 of file example_surface_velocity.c.

◆ calc_power_spectral_density()

static uint16_t calc_power_spectral_density ( acc_surface_velocity_handle_t * handle )

static

Calculate PSD (power spectral density)

Parameters

handle Surface velocity handle

Returns: Distance index

Definition at line 790 of file example_surface_velocity.c.

◆ cleanup()

static void cleanup	(	acc_surface_velocity_handle_t *	handle,
		acc_surface_velocity_config_t *	config
	)

static

Definition at line 355 of file example_surface_velocity.c.

◆ do_sensor_calibration_and_prepare()

static bool do_sensor_calibration_and_prepare	(	acc_surface_velocity_handle_t *	handle,
		acc_surface_velocity_config_t *	config
	)

static

Definition at line 541 of file example_surface_velocity.c.

◆ get_angle_correction()

float get_angle_correction	(	float	surface_distance,
		float	distance
	)

static

Definition at line 347 of file example_surface_velocity.c.

◆ get_perceived_wavelength()

static float get_perceived_wavelength ( void )

static

Definition at line 973 of file example_surface_velocity.c.

◆ get_velocity_estimate()

static bool get_velocity_estimate ( acc_surface_velocity_handle_t * handle )

static

Definition at line 319 of file example_surface_velocity.c.

◆ init_handle()

static bool init_handle	(	acc_surface_velocity_handle_t *	handle,
		acc_surface_velocity_config_t *	config
	)

static

Definition at line 621 of file example_surface_velocity.c.

◆ init_sensor_resources()

static bool init_sensor_resources	(	acc_surface_velocity_handle_t *	handle,
		acc_surface_velocity_config_t *	config
	)

static

Definition at line 578 of file example_surface_velocity.c.

◆ measure()

static bool measure ( acc_surface_velocity_handle_t * handle )

static

Definition at line 756 of file example_surface_velocity.c.

◆ print_result()

static void print_result ( acc_surface_velocity_result_t * result )

static

Definition at line 966 of file example_surface_velocity.c.

◆ process()

static bool process	(	acc_surface_velocity_handle_t *	handle,
		acc_surface_velocity_result_t *	result
	)

static

Definition at line 856 of file example_surface_velocity.c.

◆ set_config()

static void set_config ( acc_surface_velocity_config_t * config )

static

Definition at line 479 of file example_surface_velocity.c.

◆ set_prf()

static void set_prf ( acc_surface_velocity_config_t * config )

static

Definition at line 470 of file example_surface_velocity.c.

◆ set_profile()

static void set_profile ( acc_surface_velocity_config_t * config )

static

Definition at line 456 of file example_surface_velocity.c.

◆ update_threshold()

static void update_threshold ( acc_surface_velocity_handle_t * handle )

static

Definition at line 296 of file example_surface_velocity.c.

◆ validate_config()

static bool validate_config ( acc_surface_velocity_config_t * config )

static

Definition at line 506 of file example_surface_velocity.c.