This is an example on how to disable the sensor and put the system in a low power state between measurements
The example executes as follows:
- Create a presence configuration
- Create a sensor instance
- Enable sensor
- Create a detector instance
- Calibrate the sensor
- Prepare the detector
- Loop forever:
- Enable sensor
- Prepare a sensor
- Perform a sensor measurement and read out the data
- Disable sensor
- Process the measurement and get detector result
- Put the system in deep sleep for a specified amount of time
- Destroy the configuration
- Destroy the detector instance
- Destroy the sensor instance
#include <stdbool.h>
#include <stdint.h>
#include <stdio.h>
#include <stdlib.h>
typedef enum
{
#define SENSOR_ID (1U)
#define SENSOR_TIMEOUT_MS (1000U)
#define DEFAULT_PRESET_CONFIG PRESENCE_PRESET_CONFIG_MEDIUM_RANGE
void *buffer);
{
(void)argc;
(void)argv;
void *buffer = NULL;
uint32_t buffer_size = 0U;
{
return EXIT_FAILURE;
}
if (presence_config == NULL)
{
printf(
"acc_detector_presence_config_create() failed\n");
cleanup(presence_handle, presence_config, sensor, buffer);
return EXIT_FAILURE;
}
if (presence_handle == NULL)
{
printf(
"acc_detector_presence_create() failed\n");
cleanup(presence_handle, presence_config, sensor, buffer);
return EXIT_FAILURE;
}
{
printf(
"acc_detector_presence_get_buffer_size() failed\n");
cleanup(presence_handle, presence_config, sensor, buffer);
return EXIT_FAILURE;
}
if (buffer == NULL)
{
printf(
"buffer allocation failed\n");
cleanup(presence_handle, presence_config, sensor, buffer);
return EXIT_FAILURE;
}
if (sensor == NULL)
{
printf(
"acc_sensor_create() failed\n");
cleanup(presence_handle, presence_config, sensor, buffer);
return EXIT_FAILURE;
}
bool status;
bool cal_complete = false;
do
{
if (status && !cal_complete)
{
}
} while (status && !cal_complete);
if (!status)
{
printf(
"acc_sensor_calibrate() failed\n");
cleanup(presence_handle, presence_config, sensor, buffer);
return EXIT_FAILURE;
}
while (true)
{
{
printf(
"acc_detector_presence_prepare() failed\n");
cleanup(presence_handle, presence_config, sensor, buffer);
return EXIT_FAILURE;
}
{
printf(
"acc_sensor_measure failed\n");
cleanup(presence_handle, presence_config, sensor, buffer);
return EXIT_FAILURE;
}
{
printf(
"Sensor interrupt timeout\n");
cleanup(presence_handle, presence_config, sensor, buffer);
return EXIT_FAILURE;
}
{
printf(
"acc_sensor_read failed\n");
cleanup(presence_handle, presence_config, sensor, buffer);
return EXIT_FAILURE;
}
{
printf(
"acc_detector_presence_process failed\n");
cleanup(presence_handle, presence_config, sensor, buffer);
return EXIT_FAILURE;
}
}
cleanup(presence_handle, presence_config, sensor, buffer);
printf(
"Application finished OK\n");
return EXIT_SUCCESS;
}
void *buffer)
{
if (presence_config != NULL)
{
}
if (presence_handle != NULL)
{
}
if (sensor != NULL)
{
}
if (buffer != NULL)
{
}
}
{
switch (preset)
{
break;
break;
break;
break;
break;
}
}
{
{
}
else
{
}
printf(
"Intra presence score: %d, Inter presence score: %d, Distance (mm): %d\n",
}
float inter_presence_score
void acc_detector_presence_config_inter_detection_set(acc_detector_presence_config_t *presence_config, bool enable)
Set inter-frame presence detection.
void acc_detector_presence_config_sweeps_per_frame_set(acc_detector_presence_config_t *presence_config, uint16_t sweeps_per_frame)
Set the number of sweeps per frame.
@ PRESENCE_PRESET_CONFIG_NONE
void acc_hal_integration_sensor_supply_off(acc_sensor_id_t sensor_id)
Power off sensor supply.
bool acc_detector_presence_prepare(acc_detector_presence_handle_t *presence_handle, acc_detector_presence_config_t *presence_config, acc_sensor_t *sensor, const acc_cal_result_t *cal_result, void *buffer, uint32_t buffer_size)
Prepare the detector to do a measurement.
static void cleanup(acc_detector_presence_handle_t *presence_handle, acc_detector_presence_config_t *presence_config, acc_sensor_t *sensor, void *buffer)
void acc_hal_integration_sensor_supply_on(acc_sensor_id_t sensor_id)
Power on sensor supply.
void acc_detector_presence_destroy(acc_detector_presence_handle_t *presence_handle)
Destroy a presence detector identified with the provided handle.
void acc_detector_presence_config_hwaas_set(acc_detector_presence_config_t *presence_config, uint16_t hwaas)
Set the hardware accelerated average samples (HWAAS)
bool acc_sensor_read(const acc_sensor_t *sensor, void *buffer, uint32_t buffer_size)
Read out radar data.
void acc_detector_presence_config_inter_phase_boost_set(acc_detector_presence_config_t *presence_config, bool enable)
Set inter-frame phase boost.
void acc_detector_presence_config_inter_frame_deviation_time_const_set(acc_detector_presence_config_t *presence_config, float inter_frame_deviation_time_const)
Set the time constant of the low pass filter for the inter-frame deviation between fast and slow.
void acc_detector_presence_config_auto_profile_set(acc_detector_presence_config_t *presence_config, bool enable)
Enable automatic selection of profile based on start point of measurement.
void acc_detector_presence_config_frame_rate_set(acc_detector_presence_config_t *presence_config, float frame_rate)
Set the frame rate.
bool acc_detector_presence_get_buffer_size(const acc_detector_presence_handle_t *presence_handle, uint32_t *buffer_size)
Get the buffer size needed for the provided presence detector handle.
@ PRESENCE_PRESET_CONFIG_MEDIUM_RANGE
const acc_hal_a121_t * acc_hal_rss_integration_get_implementation(void)
Get hal implementation reference.
void acc_detector_presence_config_intra_detection_threshold_set(acc_detector_presence_config_t *presence_config, float intra_detection_threshold)
Set the detection threshold for the intra-frame presence detection.
void * acc_integration_mem_alloc(size_t size)
Allocate dynamic memory.
@ PRESENCE_PRESET_CONFIG_LONG_RANGE
void acc_integration_set_periodic_wakeup(uint32_t time_msec)
Set up a periodic timer used to wake up the system from sleep.
static void set_config(acc_detector_presence_config_t *presence_config, presence_preset_config_t preset)
Presence detector results container.
void acc_detector_presence_config_inter_frame_presence_timeout_set(acc_detector_presence_config_t *presence_config, uint16_t inter_frame_presence_timeout)
Set the inter-frame presence timeout in seconds.
void acc_detector_presence_config_destroy(acc_detector_presence_config_t *presence_config)
Destroy a presence detector configuration.
bool acc_hal_integration_wait_for_sensor_interrupt(acc_sensor_id_t sensor_id, uint32_t timeout_ms)
Wait for a sensor interrupt.
void acc_detector_presence_config_end_set(acc_detector_presence_config_t *presence_config, float end)
Set the end point of measurement interval in meters.
void acc_detector_presence_config_intra_output_time_const_set(acc_detector_presence_config_t *presence_config, float intra_output_time_const)
Set the time constant for the output in the intra-frame part.
int acconeer_main(int argc, char *argv[])
Assembly test example.
const char * acc_version_get(void)
Get the version of the Acconeer software.
float intra_presence_score
void acc_hal_integration_sensor_enable(acc_sensor_id_t sensor_id)
Enable sensor.
void acc_detector_presence_config_inter_frame_idle_state_set(acc_detector_presence_config_t *presence_config, acc_config_idle_state_t idle_state)
Set inter frame idle state.
bool acc_detector_presence_process(acc_detector_presence_handle_t *presence_handle, void *buffer, acc_detector_presence_result_t *result)
Process the data according to the configuration used in acc_detector_presence_config_create.
void acc_detector_presence_config_inter_output_time_const_set(acc_detector_presence_config_t *presence_config, float inter_output_time_const)
Set the time constant for the output in the inter-frame part.
void acc_detector_presence_config_reset_filters_on_prepare_set(acc_detector_presence_config_t *presence_config, bool enable)
Set if the presence filters should reset on prepare.
@ PRESENCE_PRESET_CONFIG_SHORT_RANGE
@ ACC_CONFIG_IDLE_STATE_DEEP_SLEEP
#define DEFAULT_PRESET_CONFIG
@ PRESENCE_PRESET_CONFIG_LOW_POWER_WAKEUP
void acc_detector_presence_config_intra_detection_set(acc_detector_presence_config_t *presence_config, bool enable)
Set intra-frame presence detection.
void acc_hal_integration_sensor_disable(acc_sensor_id_t sensor_id)
Disable sensor.
struct acc_detector_presence_config acc_detector_presence_config_t
void acc_detector_presence_config_inter_frame_slow_cutoff_set(acc_detector_presence_config_t *presence_config, float inter_frame_slow_cutoff)
Set the cutoff frequency of the low pass filter for the slow filtered absolute sweep mean.
float acc_detector_presence_config_frame_rate_get(const acc_detector_presence_config_t *presence_config)
Get the frame rate.
void acc_integration_mem_free(void *ptr)
Free dynamic memory.
void acc_integration_sleep_until_periodic_wakeup(void)
Put the system in sleep until the periodic timer triggers.
#define SENSOR_TIMEOUT_MS
acc_detector_presence_handle_t * acc_detector_presence_create(acc_detector_presence_config_t *presence_config, acc_detector_presence_metadata_t *metadata)
Create a presence detector with the provided configuration.
static void print_result(acc_detector_presence_result_t result)
struct acc_detector_presence_handle acc_detector_presence_handle_t
bool acc_sensor_calibrate(acc_sensor_t *sensor, bool *cal_complete, acc_cal_result_t *cal_result, void *buffer, uint32_t buffer_size)
Calibrate a sensor.
acc_detector_presence_config_t * acc_detector_presence_config_create(void)
Create a configuration for a presence detector.
void acc_detector_presence_config_start_set(acc_detector_presence_config_t *presence_config, float start)
Set the start point of measurement interval in meters.
void acc_detector_presence_config_inter_detection_threshold_set(acc_detector_presence_config_t *presence_config, float inter_detection_threshold)
Set the detection threshold for the inter-frame presence detection.
bool acc_sensor_measure(acc_sensor_t *sensor)
Start a radar measurement with previously prepared configuration.
void acc_detector_presence_config_auto_step_length_set(acc_detector_presence_config_t *presence_config, bool enable)
Enable automatic selection of step length based on the profile.
struct acc_sensor acc_sensor_t
void acc_detector_presence_config_intra_frame_time_const_set(acc_detector_presence_config_t *presence_config, float intra_frame_time_const)
Set the time constant for the depthwise filtering in the intra-frame part.
void acc_sensor_destroy(acc_sensor_t *sensor)
Destroy a sensor instance freeing any resources allocated.
void acc_detector_presence_config_frame_rate_app_driven_set(acc_detector_presence_config_t *presence_config, bool enable)
Set if the application should maintain the requested frame rate.
void acc_detector_presence_config_inter_frame_fast_cutoff_set(acc_detector_presence_config_t *presence_config, float inter_frame_fast_cutoff)
Set the cutoff frequency of the low pass filter for the fast filtered absolute sweep mean.
acc_sensor_t * acc_sensor_create(acc_sensor_id_t sensor_id)
Create a sensor instance.