example_detector_presence.c
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1 // Copyright (c) Acconeer AB, 2022-2023
2 // All rights reserved
3 // This file is subject to the terms and conditions defined in the file
4 // 'LICENSES/license_acconeer.txt', (BSD 3-Clause License) which is part
5 // of this source code package.
6
7 #include <stdbool.h>
8 #include <stdint.h>
9 #include <stdio.h>
10 #include <stdlib.h>
11
12 #include "acc_definitions_a121.h"
13 #include "acc_definitions_common.h"
14 #include "acc_detector_presence.h"
15 #include "acc_hal_definitions_a121.h"
16 #include "acc_hal_integration_a121.h"
17 #include "acc_integration.h"
18 #include "acc_rss_a121.h"
19 #include "acc_sensor.h"
20
21 #include "acc_version.h"
22
23 /** \example example_detector_presence.c
24 * @brief This is an example on how the Detector Presence API can be used
25 * @n
26 * The example executes as follows:
27 * - Create a presence configuration
28 * - Create a sensor instance
29 * - Create a detector instance
30 * - Calibrate the sensor
31 * - Prepare the detector
32 * - Perform a sensor measurement and read out the data
33 * - Process the measurement and get detector result
34 * - Destroy the configuration
35 * - Destroy the detector instance
36 * - Destroy the sensor instance
37 */
38
39
40 typedef enum
41 {
42 PRESENCE_PRESET_CONFIG_NONE = 0,
43 PRESENCE_PRESET_CONFIG_SHORT_RANGE,
44 PRESENCE_PRESET_CONFIG_MEDIUM_RANGE,
45 PRESENCE_PRESET_CONFIG_LONG_RANGE,
46 } presence_preset_config_t;
47
48
49 #define SENSOR_ID (1U)
50 #define SENSOR_TIMEOUT_MS (1000U)
51
52 #define DEFAULT_PRESET_CONFIG PRESENCE_PRESET_CONFIG_MEDIUM_RANGE
53
54 static bool do_sensor_calibration(acc_sensor_t *sensor, acc_cal_result_t *cal_result, void *buffer, uint32_t buffer_size);
55
56
57 static void print_result(acc_detector_presence_result_t result);
58
59
60 static void cleanup(acc_detector_presence_handle_t *presence_handle,
61 acc_detector_presence_config_t *presence_config,
62 acc_sensor_t *sensor,
63 void *buffer);
64
65
66 static void set_config(acc_detector_presence_config_t *presence_config, presence_preset_config_t preset);
67
68
69 int acconeer_main(int argc, char *argv[]);
70
71
72 int acconeer_main(int argc, char *argv[])
73 {
74 (void)argc;
75 (void)argv;
76 acc_detector_presence_config_t *presence_config = NULL;
77 acc_detector_presence_handle_t *presence_handle = NULL;
78 acc_detector_presence_metadata_t metadata;
79 acc_sensor_t *sensor = NULL;
80 void *buffer = NULL;
81 uint32_t buffer_size = 0U;
82
83 printf("Acconeer software version %s\n", acc_version_get());
84
85 const acc_hal_a121_t *hal = acc_hal_rss_integration_get_implementation();
86
87 if (!acc_rss_hal_register(hal))
88 {
89 return EXIT_FAILURE;
90 }
91
92 presence_config = acc_detector_presence_config_create();
93 if (presence_config == NULL)
94 {
95 printf("acc_detector_presence_config_create() failed\n");
96 cleanup(presence_handle, presence_config, sensor, buffer);
97 return EXIT_FAILURE;
98 }
99
100 set_config(presence_config, DEFAULT_PRESET_CONFIG);
101
102 // Print the configuration
103 acc_detector_presence_config_log(presence_config);
104
105 presence_handle = acc_detector_presence_create(presence_config, &metadata);
106 if (presence_handle == NULL)
107 {
108 printf("acc_detector_presence_create() failed\n");
109 cleanup(presence_handle, presence_config, sensor, buffer);
110 return EXIT_FAILURE;
111 }
112
113 if (!acc_detector_presence_get_buffer_size(presence_handle, &buffer_size))
114 {
115 printf("acc_detector_presence_get_buffer_size() failed\n");
116 cleanup(presence_handle, presence_config, sensor, buffer);
117 return EXIT_FAILURE;
118 }
119
120 buffer = acc_integration_mem_alloc(buffer_size);
121 if (buffer == NULL)
122 {
123 printf("buffer allocation failed\n");
124 cleanup(presence_handle, presence_config, sensor, buffer);
125 return EXIT_FAILURE;
126 }
127
128 acc_hal_integration_sensor_supply_on(SENSOR_ID);
129 acc_hal_integration_sensor_enable(SENSOR_ID);
130
131 sensor = acc_sensor_create(SENSOR_ID);
132 if (sensor == NULL)
133 {
134 printf("acc_sensor_create() failed\n");
135 cleanup(presence_handle, presence_config, sensor, buffer);
136 return EXIT_FAILURE;
137 }
138
139 acc_cal_result_t cal_result;
140
141 if (!do_sensor_calibration(sensor, &cal_result, buffer, buffer_size))
142 {
143 printf("do_sensor_calibration() failed\n");
144 cleanup(presence_handle, presence_config, sensor, buffer);
145 return EXIT_FAILURE;
146 }
147
148 if (!acc_detector_presence_prepare(presence_handle, presence_config, sensor, &cal_result,
149 buffer, buffer_size))
150 {
151 printf("acc_detector_presence_prepare() failed\n");
152 cleanup(presence_handle, presence_config, sensor, buffer);
153 return EXIT_FAILURE;
154 }
155
156 while (true)
157 {
158 acc_detector_presence_result_t result;
159
160 if (!acc_sensor_measure(sensor))
161 {
162 printf("acc_sensor_measure failed\n");
163 cleanup(presence_handle, presence_config, sensor, buffer);
164 return EXIT_FAILURE;
165 }
166
167 if (!acc_hal_integration_wait_for_sensor_interrupt(SENSOR_ID, SENSOR_TIMEOUT_MS))
168 {
169 printf("Sensor interrupt timeout\n");
170 cleanup(presence_handle, presence_config, sensor, buffer);
171 return EXIT_FAILURE;
172 }
173
174 if (!acc_sensor_read(sensor, buffer, buffer_size))
175 {
176 printf("acc_sensor_read failed\n");
177 cleanup(presence_handle, presence_config, sensor, buffer);
178 return EXIT_FAILURE;
179 }
180
181 if (!acc_detector_presence_process(presence_handle, buffer, &result))
182 {
183 printf("acc_detector_presence_process failed\n");
184 cleanup(presence_handle, presence_config, sensor, buffer);
185 return EXIT_FAILURE;
186 }
187
188 print_result(result);
189
190 if (result.processing_result.data_saturated)
191 {
192 printf("Data saturated. The detector result is not reliable.\n");
193 }
194
195 if (result.processing_result.frame_delayed)
196 {
197 printf("Frame delayed. Could not read data fast enough.\n");
198 printf("Try lowering the frame rate or call 'acc_sensor_read' more frequently.\n");
199 }
200
201 /* If "calibration_needed" is indicated, the sensor needs to be recalibrated. */
202 if (result.processing_result.calibration_needed)
203 {
204 printf("Sensor recalibration needed ... \n");
205
206 if (!do_sensor_calibration(sensor, &cal_result, buffer, buffer_size))
207 {
208 printf("do_sensor_calibration() failed\n");
209 cleanup(presence_handle, presence_config, sensor, buffer);
210 return EXIT_FAILURE;
211 }
212
213 printf("Sensor recalibration done!\n");
214
215 /* Before measuring again, the sensor needs to be prepared through the detector. */
216 if (!acc_detector_presence_prepare(presence_handle, presence_config, sensor, &cal_result,
217 buffer, buffer_size))
218 {
219 printf("acc_detector_presence_prepare() failed\n");
220 cleanup(presence_handle, presence_config, sensor, buffer);
221 return EXIT_FAILURE;
222 }
223 }
224 }
225
226 cleanup(presence_handle, presence_config, sensor, buffer);
227
228 printf("Application finished OK\n");
229
230 return EXIT_SUCCESS;
231 }
232
233
234 static void cleanup(acc_detector_presence_handle_t *presence_handle,
235 acc_detector_presence_config_t *presence_config,
236 acc_sensor_t *sensor,
237 void *buffer)
238 {
239 acc_hal_integration_sensor_disable(SENSOR_ID);
240 acc_hal_integration_sensor_supply_off(SENSOR_ID);
241
242 if (presence_config != NULL)
243 {
244 acc_detector_presence_config_destroy(presence_config);
245 }
246
247 if (presence_handle != NULL)
248 {
249 acc_detector_presence_destroy(presence_handle);
250 }
251
252 if (sensor != NULL)
253 {
254 acc_sensor_destroy(sensor);
255 }
256
257 if (buffer != NULL)
258 {
259 acc_integration_mem_free(buffer);
260 }
261 }
262
263
264 static bool do_sensor_calibration(acc_sensor_t *sensor, acc_cal_result_t *cal_result, void *buffer, uint32_t buffer_size)
265 {
266 bool status = false;
267 bool cal_complete = false;
268 const uint16_t calibration_retries = 1U;
269
270 // Random disturbances may cause the calibration to fail. At failure, retry at least once.
271 for (uint16_t i = 0; !status && (i <= calibration_retries); i++)
272 {
273 // Reset sensor before calibration by disabling/enabling it
274 acc_hal_integration_sensor_disable(SENSOR_ID);
275 acc_hal_integration_sensor_enable(SENSOR_ID);
276
277 do
278 {
279 status = acc_sensor_calibrate(sensor, &cal_complete, cal_result, buffer, buffer_size);
280
281 if (status && !cal_complete)
282 {
283 status = acc_hal_integration_wait_for_sensor_interrupt(SENSOR_ID, SENSOR_TIMEOUT_MS);
284 }
285 } while (status && !cal_complete);
286 }
287
288 if (status)
289 {
290 /* Reset sensor after calibration by disabling/enabling it */
291 acc_hal_integration_sensor_disable(SENSOR_ID);
292 acc_hal_integration_sensor_enable(SENSOR_ID);
293 }
294
295 return status;
296 }
297
298
299 static void print_result(acc_detector_presence_result_t result)
300 {
301 if (result.presence_detected)
302 {
303 printf("Motion\n");
304 }
305 else
306 {
307 printf("No motion\n");
308 }
309
310 // Score and distance are multiplied by 1000 to avoid printing floats
311 printf("Intra presence score: %d, Inter presence score: %d, Distance (mm): %d\n",
312 (int)(result.intra_presence_score * 1000.0f),
313 (int)(result.inter_presence_score * 1000.0f),
314 (int)(result.presence_distance * 1000.0f));
315 }
316
317
318 static void set_config(acc_detector_presence_config_t *presence_config, presence_preset_config_t preset)
319 {
320 switch (preset)
321 {
322 case PRESENCE_PRESET_CONFIG_NONE:
323 // Add configuration of the detector here
324 break;
325
326 case PRESENCE_PRESET_CONFIG_SHORT_RANGE:
327 acc_detector_presence_config_start_set(presence_config, 0.06f);
328 acc_detector_presence_config_end_set(presence_config, 1.0f);
329 acc_detector_presence_config_auto_step_length_set(presence_config, true);
330 acc_detector_presence_config_auto_profile_set(presence_config, true);
331 acc_detector_presence_config_inter_frame_idle_state_set(presence_config, ACC_CONFIG_IDLE_STATE_DEEP_SLEEP);
332 acc_detector_presence_config_hwaas_set(presence_config, 16);
333 acc_detector_presence_config_sweeps_per_frame_set(presence_config, 16);
334 acc_detector_presence_config_frame_rate_set(presence_config, 10.0f);
335 acc_detector_presence_config_frame_rate_app_driven_set(presence_config, false);
336 acc_detector_presence_config_reset_filters_on_prepare_set(presence_config, true);
337 acc_detector_presence_config_intra_detection_set(presence_config, true);
338 acc_detector_presence_config_intra_detection_threshold_set(presence_config, 1.4f);
339 acc_detector_presence_config_intra_frame_time_const_set(presence_config, 0.15f);
340 acc_detector_presence_config_intra_output_time_const_set(presence_config, 0.3f);
341 acc_detector_presence_config_inter_detection_set(presence_config, true);
342 acc_detector_presence_config_inter_detection_threshold_set(presence_config, 1.0f);
343 acc_detector_presence_config_inter_frame_deviation_time_const_set(presence_config, 0.5f);
344 acc_detector_presence_config_inter_frame_fast_cutoff_set(presence_config, 5.0f);
345 acc_detector_presence_config_inter_frame_slow_cutoff_set(presence_config, 0.20f);
346 acc_detector_presence_config_inter_output_time_const_set(presence_config, 2.0f);
347 acc_detector_presence_config_inter_frame_presence_timeout_set(presence_config, 3);
348 acc_detector_presence_config_inter_phase_boost_set(presence_config, false);
349
350 break;
351
352 case PRESENCE_PRESET_CONFIG_MEDIUM_RANGE:
353 acc_detector_presence_config_start_set(presence_config, 0.3f);
354 acc_detector_presence_config_end_set(presence_config, 2.5f);
355 acc_detector_presence_config_auto_step_length_set(presence_config, true);
356 acc_detector_presence_config_auto_profile_set(presence_config, true);
357 acc_detector_presence_config_inter_frame_idle_state_set(presence_config, ACC_CONFIG_IDLE_STATE_DEEP_SLEEP);
358 acc_detector_presence_config_hwaas_set(presence_config, 32);
359 acc_detector_presence_config_sweeps_per_frame_set(presence_config, 16);
360 acc_detector_presence_config_frame_rate_set(presence_config, 12.0f);
361 acc_detector_presence_config_frame_rate_app_driven_set(presence_config, false);
362 acc_detector_presence_config_reset_filters_on_prepare_set(presence_config, true);
363 acc_detector_presence_config_intra_detection_set(presence_config, true);
364 acc_detector_presence_config_intra_detection_threshold_set(presence_config, 1.3f);
365 acc_detector_presence_config_intra_frame_time_const_set(presence_config, 0.15f);
366 acc_detector_presence_config_intra_output_time_const_set(presence_config, 0.3f);
367 acc_detector_presence_config_inter_detection_set(presence_config, true);
368 acc_detector_presence_config_inter_detection_threshold_set(presence_config, 1.0f);
369 acc_detector_presence_config_inter_frame_deviation_time_const_set(presence_config, 0.5f);
370 acc_detector_presence_config_inter_frame_fast_cutoff_set(presence_config, 6.0f);
371 acc_detector_presence_config_inter_frame_slow_cutoff_set(presence_config, 0.20f);
372 acc_detector_presence_config_inter_output_time_const_set(presence_config, 2.0f);
373 acc_detector_presence_config_inter_frame_presence_timeout_set(presence_config, 3);
374 acc_detector_presence_config_inter_phase_boost_set(presence_config, false);
375
376 break;
377
378 case PRESENCE_PRESET_CONFIG_LONG_RANGE:
379 acc_detector_presence_config_start_set(presence_config, 5.0f);
380 acc_detector_presence_config_end_set(presence_config, 7.5f);
381 acc_detector_presence_config_auto_step_length_set(presence_config, true);
382 acc_detector_presence_config_auto_profile_set(presence_config, true);
383 acc_detector_presence_config_inter_frame_idle_state_set(presence_config, ACC_CONFIG_IDLE_STATE_DEEP_SLEEP);
384 acc_detector_presence_config_hwaas_set(presence_config, 128);
385 acc_detector_presence_config_sweeps_per_frame_set(presence_config, 32);
386 acc_detector_presence_config_frame_rate_set(presence_config, 12.0f);
387 acc_detector_presence_config_frame_rate_app_driven_set(presence_config, false);
388 acc_detector_presence_config_reset_filters_on_prepare_set(presence_config, true);
389 acc_detector_presence_config_intra_detection_set(presence_config, true);
390 acc_detector_presence_config_intra_detection_threshold_set(presence_config, 1.2f);
391 acc_detector_presence_config_intra_frame_time_const_set(presence_config, 0.15f);
392 acc_detector_presence_config_intra_output_time_const_set(presence_config, 0.3f);
393 acc_detector_presence_config_inter_detection_set(presence_config, true);
394 acc_detector_presence_config_inter_detection_threshold_set(presence_config, 0.8f);
395 acc_detector_presence_config_inter_frame_deviation_time_const_set(presence_config, 0.5f);
396 acc_detector_presence_config_inter_frame_fast_cutoff_set(presence_config, 6.0f);
397 acc_detector_presence_config_inter_frame_slow_cutoff_set(presence_config, 0.20f);
398 acc_detector_presence_config_inter_output_time_const_set(presence_config, 2.0f);
399 acc_detector_presence_config_inter_frame_presence_timeout_set(presence_config, 3);
400 acc_detector_presence_config_inter_phase_boost_set(presence_config, false);
401
402 break;
403 }
404 }
acc_detector_presence_result_t::inter_presence_score
float inter_presence_score
Definition: acc_detector_presence.h:63
set_config
static void set_config(acc_detector_presence_config_t *presence_config, presence_preset_config_t preset)
Definition: example_detector_presence.c:318
acc_detector_presence_config_inter_detection_set
void acc_detector_presence_config_inter_detection_set(acc_detector_presence_config_t *presence_config, bool enable)
Set inter-frame presence detection.
acc_detector_presence_config_sweeps_per_frame_set
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.
acc_hal_integration_sensor_supply_off
void acc_hal_integration_sensor_supply_off(acc_sensor_id_t sensor_id)
Power off sensor supply.
Definition: acc_hal_integration_stm32cube_xm.c:113
acc_rss_a121.h
acc_detector_presence_prepare
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.
acc_hal_integration_sensor_supply_on
void acc_hal_integration_sensor_supply_on(acc_sensor_id_t sensor_id)
Power on sensor supply.
Definition: acc_hal_integration_stm32cube_xm.c:107
acc_detector_presence_destroy
void acc_detector_presence_destroy(acc_detector_presence_handle_t *presence_handle)
Destroy a presence detector identified with the provided handle.
acc_detector_presence_config_hwaas_set
void acc_detector_presence_config_hwaas_set(acc_detector_presence_config_t *presence_config, uint16_t hwaas)
Set the hardware accelerated average samples (HWAAS)
acc_detector_presence_config_log
void acc_detector_presence_config_log(const acc_detector_presence_config_t *presence_config)
Print a configuration to the log.
acc_sensor_read
bool acc_sensor_read(const acc_sensor_t *sensor, void *buffer, uint32_t buffer_size)
Read out radar data.
SENSOR_TIMEOUT_MS
#define SENSOR_TIMEOUT_MS
Definition: example_detector_presence.c:50
acc_detector_presence_config_inter_phase_boost_set
void acc_detector_presence_config_inter_phase_boost_set(acc_detector_presence_config_t *presence_config, bool enable)
Set inter-frame phase boost.
acc_version.h
acc_detector_presence_config_inter_frame_deviation_time_const_set
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.
acc_detector_presence_config_auto_profile_set
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.
acc_detector_presence_result_t::processing_result
acc_processing_result_t processing_result
Definition: acc_detector_presence.h:86
print_result
static void print_result(acc_detector_presence_result_t result)
Definition: example_detector_presence.c:299
acc_cal_result_t
Definition: acc_definitions_a121.h:19
acconeer_main
int acconeer_main(int argc, char *argv[])
Assembly test example.
Definition: example_detector_presence.c:72
acc_detector_presence_config_frame_rate_set
void acc_detector_presence_config_frame_rate_set(acc_detector_presence_config_t *presence_config, float frame_rate)
Set the frame rate.
PRESENCE_PRESET_CONFIG_LONG_RANGE
@ PRESENCE_PRESET_CONFIG_LONG_RANGE
Definition: example_detector_presence.c:45
acc_integration.h
acc_detector_presence_get_buffer_size
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.
acc_hal_rss_integration_get_implementation
const acc_hal_a121_t * acc_hal_rss_integration_get_implementation(void)
Get hal implementation reference.
Definition: acc_hal_integration_stm32cube_xm.c:166
acc_detector_presence_result_t::presence_detected
bool presence_detected
Definition: acc_detector_presence.h:55
acc_detector_presence_config_intra_detection_threshold_set
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.
acc_integration_mem_alloc
void * acc_integration_mem_alloc(size_t size)
Allocate dynamic memory.
Definition: acc_integration_stm32.c:632
acc_hal_a121_t
Definition: acc_hal_definitions_a121.h:82
acc_rss_hal_register
bool acc_rss_hal_register(const acc_hal_a121_t *hal)
Register an integration.
acc_sensor.h
acc_detector_presence_result_t
Presence detector results container.
Definition: acc_detector_presence.h:50
acc_detector_presence_config_inter_frame_presence_timeout_set
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.
DEFAULT_PRESET_CONFIG
#define DEFAULT_PRESET_CONFIG
Definition: example_detector_presence.c:52
acc_detector_presence_config_destroy
void acc_detector_presence_config_destroy(acc_detector_presence_config_t *presence_config)
Destroy a presence detector configuration.
acc_detector_presence_metadata_t
Definition: acc_detector_presence.h:93
acc_hal_integration_wait_for_sensor_interrupt
bool acc_hal_integration_wait_for_sensor_interrupt(acc_sensor_id_t sensor_id, uint32_t timeout_ms)
Wait for a sensor interrupt.
Definition: acc_hal_integration_stm32cube_xm.c:142
acc_hal_integration_a121.h
acc_detector_presence_config_end_set
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.
acc_detector_presence_config_intra_output_time_const_set
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.
acc_version_get
const char * acc_version_get(void)
Get the version of the Acconeer software.
PRESENCE_PRESET_CONFIG_SHORT_RANGE
@ PRESENCE_PRESET_CONFIG_SHORT_RANGE
Definition: example_detector_presence.c:43
printf
#define printf
Definition: printf.h:60
acc_detector_presence_result_t::intra_presence_score
float intra_presence_score
Definition: acc_detector_presence.h:59
acc_hal_integration_sensor_enable
void acc_hal_integration_sensor_enable(acc_sensor_id_t sensor_id)
Enable sensor.
Definition: acc_hal_integration_stm32cube_xm.c:119
acc_detector_presence_config_inter_frame_idle_state_set
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.
acc_hal_definitions_a121.h
acc_detector_presence_process
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.
acc_detector_presence_config_inter_output_time_const_set
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.
PRESENCE_PRESET_CONFIG_NONE
@ PRESENCE_PRESET_CONFIG_NONE
Definition: example_detector_presence.c:42
acc_detector_presence_config_reset_filters_on_prepare_set
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.
ACC_CONFIG_IDLE_STATE_DEEP_SLEEP
@ ACC_CONFIG_IDLE_STATE_DEEP_SLEEP
Definition: acc_definitions_a121.h:64
acc_detector_presence_config_intra_detection_set
void acc_detector_presence_config_intra_detection_set(acc_detector_presence_config_t *presence_config, bool enable)
Set intra-frame presence detection.
acc_processing_result_t::frame_delayed
bool frame_delayed
Definition: acc_processing.h:80
acc_hal_integration_sensor_disable
void acc_hal_integration_sensor_disable(acc_sensor_id_t sensor_id)
Disable sensor.
Definition: acc_hal_integration_stm32cube_xm.c:130
acc_detector_presence_config_t
struct acc_detector_presence_config acc_detector_presence_config_t
Definition: acc_detector_presence.h:44
do_sensor_calibration
static bool do_sensor_calibration(acc_sensor_t *sensor, acc_cal_result_t *cal_result, void *buffer, uint32_t buffer_size)
Definition: example_detector_presence.c:264
presence_preset_config_t
presence_preset_config_t
Definition: example_detector_presence_low_power_hibernate.c:48
acc_detector_presence_config_inter_frame_slow_cutoff_set
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.
PRESENCE_PRESET_CONFIG_MEDIUM_RANGE
@ PRESENCE_PRESET_CONFIG_MEDIUM_RANGE
Definition: example_detector_presence.c:44
acc_detector_presence_result_t::presence_distance
float presence_distance
Definition: acc_detector_presence.h:67
acc_integration_mem_free
void acc_integration_mem_free(void *ptr)
Free dynamic memory.
Definition: acc_integration_stm32.c:644
acc_definitions_common.h
acc_detector_presence_create
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.
SENSOR_ID
#define SENSOR_ID
Definition: example_detector_presence.c:49
acc_processing_result_t::data_saturated
bool data_saturated
Definition: acc_processing.h:76
acc_detector_presence_handle_t
struct acc_detector_presence_handle acc_detector_presence_handle_t
Definition: acc_detector_presence.h:36
acc_sensor_calibrate
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_create
acc_detector_presence_config_t * acc_detector_presence_config_create(void)
Create a configuration for a presence detector.
acc_detector_presence_config_start_set
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.
acc_processing_result_t::calibration_needed
bool calibration_needed
Definition: acc_processing.h:84
acc_detector_presence.h
acc_detector_presence_config_inter_detection_threshold_set
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.
acc_sensor_measure
bool acc_sensor_measure(acc_sensor_t *sensor)
Start a radar measurement with previously prepared configuration.
acc_detector_presence_config_auto_step_length_set
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.
acc_sensor_t
struct acc_sensor acc_sensor_t
Definition: acc_sensor.h:31
acc_detector_presence_config_intra_frame_time_const_set
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.
acc_sensor_destroy
void acc_sensor_destroy(acc_sensor_t *sensor)
Destroy a sensor instance freeing any resources allocated.
cleanup
static void cleanup(acc_detector_presence_handle_t *presence_handle, acc_detector_presence_config_t *presence_config, acc_sensor_t *sensor, void *buffer)
Definition: example_detector_presence.c:234
acc_definitions_a121.h
acc_detector_presence_config_frame_rate_app_driven_set
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.
acc_detector_presence_config_inter_frame_fast_cutoff_set
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_create
acc_sensor_t * acc_sensor_create(acc_sensor_id_t sensor_id)
Create a sensor instance.
presence_preset_config_t
presence_preset_config_t
Definition: example_detector_presence.c:40