#include <complex.h>
#include <float.h>
#include <inttypes.h>
#include <math.h>
#include <stdbool.h>
#include <stddef.h>
#include <stdint.h>
#include "acc_alg_basic_utils.h"
#include "acc_algorithm.h"
#include "acc_config.h"
#include "acc_config_subsweep.h"
#include "acc_integration.h"
#include "acc_integration_log.h"
#include "acc_processing.h"
#include "example_vibration.h"

Data Structures
struct	circular_float_buffer_t

struct	acc_vibration_handle

Macros
#define	MODULE "example_vibration"

#define	RADIANS_TO_DISPLACEMENT_FACTOR (394.32604621792916f)

#define	NUM_POINTS (1U)

#define	CFAR_WINDOW_LENGTH (10U)

#define	CFAR_HALF_GUARD_LENGTH (5U)

#define	CFAR_MARGIN (CFAR_WINDOW_LENGTH + CFAR_HALF_GUARD_LENGTH)

#define	IS_POWER_OF_TWO(x) (((x) & ((x) - 1)) == 0)

#define	BOOL_TO_STR(b) (b ? "true" : "false")

Functions
static void	circular_float_buffer_write_angle (circular_float_buffer_t *cb, float new_element)
	Write an angle (in rads) to the circular buffer. The angle will be "unwrapped" before write. More...

static float	circular_float_buffer_get (const circular_float_buffer_t *cb, uint16_t chronological_idx)
	Get an element of the circular buffer given its "age". A chronological index of 0 returns the oldest element in the buffer. More...

static bool	validate_config (const acc_vibration_config_t *config)

static bool	translate_config (const acc_vibration_config_t config, acc_config_t sensor_config)

static void	setup_rfft_bounds (acc_vibration_handle_t handle, const acc_vibration_config_t config)

static void	setup_sample_frequencies (acc_vibration_handle_t *handle, float sweep_rate)

static void	update_vibration_result (acc_vibration_handle_t handle, acc_vibration_config_t config, acc_vibration_result_t *result)

static float *	get_zero_mean_time_series (acc_vibration_handle_t *handle)

static void	calculate_threshold (acc_vibration_handle_t handle, acc_vibration_config_t config)

void	acc_vibration_preset_set (acc_vibration_config_t *config, acc_vibration_preset_t preset)

void	acc_vibration_config_log (const acc_vibration_config_t *config)

acc_vibration_handle_t *	acc_vibration_handle_create (const acc_vibration_config_t *config)

const acc_config_t *	acc_vibration_handle_sensor_config_get (acc_vibration_handle_t *handle)

const float *	acc_vibration_handle_displacement_history_get (acc_vibration_handle_t handle, uint16_t num_elem)

bool	acc_vibration_handle_continuous_data_acquisition_get (acc_vibration_handle_t handle, bool continuous_data_acquisition)

void	acc_vibration_handle_destroy (acc_vibration_handle_t *handle)

void	acc_vibration_process (acc_processing_result_t proc_result, acc_vibration_handle_t handle, acc_vibration_config_t config, acc_vibration_result_t result)

Macro Definition Documentation

◆ BOOL_TO_STR

#define BOOL_TO_STR ( b ) (b ? "true" : "false")

Definition at line 40 of file example_vibration.c.

◆ CFAR_HALF_GUARD_LENGTH

#define CFAR_HALF_GUARD_LENGTH (5U)

Definition at line 36 of file example_vibration.c.

◆ CFAR_MARGIN

#define CFAR_MARGIN (CFAR_WINDOW_LENGTH + CFAR_HALF_GUARD_LENGTH)

Definition at line 37 of file example_vibration.c.

◆ CFAR_WINDOW_LENGTH

#define CFAR_WINDOW_LENGTH (10U)

Definition at line 35 of file example_vibration.c.

◆ IS_POWER_OF_TWO

#define IS_POWER_OF_TWO ( x ) (((x) & ((x) - 1)) == 0)

Definition at line 39 of file example_vibration.c.

◆ MODULE

#define MODULE "example_vibration"

Definition at line 24 of file example_vibration.c.

◆ NUM_POINTS

#define NUM_POINTS (1U)

Definition at line 34 of file example_vibration.c.

◆ RADIANS_TO_DISPLACEMENT_FACTOR

#define RADIANS_TO_DISPLACEMENT_FACTOR (394.32604621792916f)

/ c/f \ | ----— | * 1e6 with c = 299792458 m/s,

\ 2 / f = 60.5 GHz

2 pi

Definition at line 32 of file example_vibration.c.

Function Documentation

◆ acc_vibration_config_log()

void acc_vibration_config_log ( const acc_vibration_config_t * config )

Parameters

[in] config The config to log

Definition at line 170 of file example_vibration.c.

◆ acc_vibration_handle_continuous_data_acquisition_get()

bool acc_vibration_handle_continuous_data_acquisition_get	(	acc_vibration_handle_t *	handle,
		bool *	continuous_data_acquisition
	)

Parameters

[in]	handle	A handle to get the internal setting from
[out]	continuous_data_acquisition	Wether continuous data acquisition is enabled

Returns: True is arguments are non-NULL, false otherwise

Definition at line 369 of file example_vibration.c.

◆ acc_vibration_handle_create()

acc_vibration_handle_t* acc_vibration_handle_create ( const acc_vibration_config_t * config )

Parameters

[in] config A vibration app config to set default settings to.

Returns: A vibration processing handle

Definition at line 233 of file example_vibration.c.

◆ acc_vibration_handle_destroy()

void acc_vibration_handle_destroy ( acc_vibration_handle_t * handle )

Parameters

[in] handle The vibration handle to destroy

Definition at line 381 of file example_vibration.c.

◆ acc_vibration_handle_displacement_history_get()

const float* acc_vibration_handle_displacement_history_get	(	acc_vibration_handle_t *	handle,
		uint16_t *	num_elem
	)

Parameters

[in]	handle	A handle to get the internal displacement history from
[out]	num_elem	The number of elements in the returned array

Returns: An array with displacements if arguments are non-NULL

Definition at line 355 of file example_vibration.c.

◆ acc_vibration_handle_sensor_config_get()

const acc_config_t* acc_vibration_handle_sensor_config_get ( acc_vibration_handle_t * handle )

Parameters

[in] handle The handle

Returns: pointer to a sensor config corresponding to the vibration config 'handle' was created with.

Definition at line 350 of file example_vibration.c.

◆ acc_vibration_preset_set()

void acc_vibration_preset_set	(	acc_vibration_config_t *	config,
		acc_vibration_preset_t	preset
	)

Parameters

[out]	config	The vibration config to set a preset for
[in]	preset	The preset

Definition at line 115 of file example_vibration.c.

◆ acc_vibration_process()

void acc_vibration_process	(	acc_processing_result_t *	proc_result,
		acc_vibration_handle_t *	handle,
		acc_vibration_config_t *	config,
		acc_vibration_result_t *	result
	)

Parameters

[in]	proc_result	Input for vibration processing
[in]	handle	The vibration processing handle
[in]	config	The vibration app config
[out]	result	The vibration processing result

Definition at line 437 of file example_vibration.c.

◆ calculate_threshold()

static void calculate_threshold	(	acc_vibration_handle_t *	handle,
		acc_vibration_config_t *	config
	)

static

Definition at line 734 of file example_vibration.c.

◆ circular_float_buffer_get()

static float circular_float_buffer_get	(	const circular_float_buffer_t *	cb,
		uint16_t	chronological_idx
	)

static

Get an element of the circular buffer given its "age". A chronological index of 0 returns the oldest element in the buffer.

Definition at line 568 of file example_vibration.c.

◆ circular_float_buffer_write_angle()

static void circular_float_buffer_write_angle	(	circular_float_buffer_t *	cb,
		float	new_element
	)

static

Write an angle (in rads) to the circular buffer. The angle will be "unwrapped" before write.

Definition at line 558 of file example_vibration.c.

◆ get_zero_mean_time_series()

static float * get_zero_mean_time_series ( acc_vibration_handle_t * handle )

static

Definition at line 715 of file example_vibration.c.

◆ setup_rfft_bounds()

static void setup_rfft_bounds	(	acc_vibration_handle_t *	handle,
		const acc_vibration_config_t *	config
	)

static

Definition at line 799 of file example_vibration.c.

◆ setup_sample_frequencies()

static void setup_sample_frequencies	(	acc_vibration_handle_t *	handle,
		float	sweep_rate
	)

static

Definition at line 669 of file example_vibration.c.

◆ translate_config()

static bool translate_config	(	const acc_vibration_config_t *	config,
		acc_config_t *	sensor_config
	)

static

Definition at line 612 of file example_vibration.c.

◆ update_vibration_result()

static void update_vibration_result	(	acc_vibration_handle_t *	handle,
		acc_vibration_config_t *	config,
		acc_vibration_result_t *	result
	)

static

Definition at line 676 of file example_vibration.c.

◆ validate_config()

static bool validate_config ( const acc_vibration_config_t * config )

static

Definition at line 580 of file example_vibration.c.

Data Structures

Macros

Functions

Macro Definition Documentation

◆ BOOL_TO_STR

◆ CFAR_HALF_GUARD_LENGTH

◆ CFAR_MARGIN

◆ CFAR_WINDOW_LENGTH

◆ IS_POWER_OF_TWO

◆ MODULE

◆ NUM_POINTS

◆ RADIANS_TO_DISPLACEMENT_FACTOR

\ 2 / f = 60.5 GHz

Function Documentation

◆ acc_vibration_config_log()

◆ acc_vibration_handle_continuous_data_acquisition_get()

◆ acc_vibration_handle_create()

◆ acc_vibration_handle_destroy()

◆ acc_vibration_handle_displacement_history_get()

◆ acc_vibration_handle_sensor_config_get()

◆ acc_vibration_preset_set()

◆ acc_vibration_process()

◆ calculate_threshold()

◆ circular_float_buffer_get()

◆ circular_float_buffer_write_angle()

◆ get_zero_mean_time_series()

◆ setup_rfft_bounds()

◆ setup_sample_frequencies()

◆ translate_config()

◆ update_vibration_result()

◆ validate_config()