for led strip
motion_tracking.cpp
- Committer:
- xuweiqian9999
- Date:
- 2018-06-11
- Revision:
- 0:da91c8ed4a98
- Child:
- 1:b90027de2bdb
File content as of revision 0:da91c8ed4a98:
#include "motion_tracking.h" void acquire_new_speed(float *cur_speed, float duration, float *instant_accel) { cur_speed[0] = cur_speed[0] + duration * instant_accel[0]; cur_speed[1] = cur_speed[1] + duration * instant_accel[1]; cur_speed[2] = cur_speed[2] + duration * instant_accel[2]; } void acquire_sensor_data(float *accel_data, float *gyro_data, float *calib_data, int calibFlag, FXOS8700 *accel, FXAS21002 *gyro) { accel->acquire_accel_data_g(accel_data); gyro->acquire_gyro_data_dps(gyro_data); int precision = 1000; float temp_y = accel_data[1]; accel_data[1] = accel_data[0]; accel_data[0] = temp_y; if (calibFlag && (calib_data != NULL)) { int i; for (i = 0; i < 3; i++) { accel_data[i] -= calib_data[i]; gyro_data[i] -= calib_data[i + 3]; if (accel_data[i] < 0) { accel_data[i] = floor(-1*precision*accel_data[i])/(-1 * precision); } else { accel_data[i] = floor(precision*accel_data[i])/precision; } if (gyro_data[i] < 0) { gyro_data[i] = floor(-1*precision*gyro_data[i])/(-1*precision); } else { gyro_data[i] = floor(precision*gyro_data[i])/precision; } } } } void get_caliberate_data(float *caliberate, FXOS8700 *accel, FXAS21002 *gyro) { int i; int j; float accel_data[3]; float gyro_data[3]; double temp_calib[6] = {0.0f, 0.0f, 0.0f, 0.0f, 0.0f, 0.0f}; for (i = 0; i < CALIBTIMES; i++) { acquire_sensor_data(accel_data, gyro_data, NULL, 0, accel, gyro); for (j = 0; j < 3; j++) { temp_calib[j] += accel_data[j]; temp_calib[j + 3] += gyro_data[j]; } wait_ms(MAINWAIT); } for (i = 0; i < 6; i++) { temp_calib[i] /= (double)CALIBTIMES; caliberate[i] = (float)temp_calib[i]; } } void load_buffer(float **all_data, float *accel_data, float time, int i) { if (i == MAXBUFFERSIZE) { printf("Buffer full!\n\r"); exit(1); } all_data[0][i] = time; all_data[1][i] = accel_data[0]; all_data[2][i] = accel_data[1]; all_data[3][i] = accel_data[2]; } void init_moving_avg_buf(float moving_avg_buf[][MOVINGAVRBUFSIZE], int *num_samples, float *last_total, float **all_data, float *caliberate, Timer *t, FXOS8700 *accel, FXAS21002 *gyro) { int i; float accel_data[3]; float gyro_data[3]; float time; float total_accelx = 0.0f; float total_accely = 0.0f; float total_accelz = 0.0f; for (i = 0; i < (int)MOVINGAVRBUFSIZE; i++) { acquire_sensor_data(accel_data, gyro_data, caliberate, 1, accel, gyro); time = t->read(); moving_avg_buf[0][i] = accel_data[0]; moving_avg_buf[1][i] = accel_data[1]; moving_avg_buf[2][i] = accel_data[2]; moving_avg_buf[3][i] = time; wait_ms(MAINWAIT); } for (i = 0; i < (int)MOVINGAVRBUFSIZE; i++) { total_accelx += moving_avg_buf[0][i]; total_accely += moving_avg_buf[1][i]; total_accelz += moving_avg_buf[2][i]; } last_total[0] = total_accelx; last_total[1] = total_accely; last_total[2] = total_accelz; all_data[0][0] = moving_avg_buf[3][0]; all_data[1][0] = total_accelx/(float) MOVINGAVRBUFSIZE; all_data[2][0] = total_accely/(float) MOVINGAVRBUFSIZE; all_data[3][0] = total_accelz/(float) MOVINGAVRBUFSIZE; (*num_samples)++; } void get_new_moving_average_point(float **all_data, float *last_total, float *accel_data, float moving_avg_buf[][MOVINGAVRBUFSIZE], float time, int *num_samples, int *start, int *end) { last_total[0] = last_total[0] - moving_avg_buf[0][*start] + accel_data[0]; last_total[1] = last_total[1] - moving_avg_buf[1][*start] + accel_data[1]; last_total[2] = last_total[2] - moving_avg_buf[2][*start] + accel_data[2]; all_data[0][*num_samples] = moving_avg_buf[3][*start]; float temp_x = last_total[0] / (float)MOVINGAVRBUFSIZE; float temp_y = last_total[1] / (float)MOVINGAVRBUFSIZE; float temp_z = last_total[2] / (float)MOVINGAVRBUFSIZE; if (abs(temp_x) > (float) XMECHANICAL) { all_data[1][*num_samples] = temp_x; } else { all_data[1][*num_samples] = 0.0f; } if (abs(temp_y) > (float) YMECHANICAL) { all_data[2][*num_samples] = temp_y; } else { all_data[2][*num_samples] = 0.0f; } if (abs(temp_z) > (float) ZMECHANICAL) { all_data[3][*num_samples] = temp_z; } else { all_data[3][*num_samples] = 0.0f; } *start = (*start + 1) % (int) MOVINGAVRBUFSIZE; *end = (*end + 1) % (int) MOVINGAVRBUFSIZE; moving_avg_buf[0][*end] = accel_data[0]; moving_avg_buf[1][*end] = accel_data[1]; moving_avg_buf[2][*end] = accel_data[2]; moving_avg_buf[3][*end] = time; (*num_samples) += 1; } void apply_trend_protect(float **all_data, int num_samples, float *total_diff, float *additional_to_vel, float duration) { if (num_samples > TRENDPROTECTBUFSIZE) { total_diff[0] -= all_data[2][num_samples-TRENDPROTECTBUFSIZE] - all_data[2][num_samples-TRENDPROTECTBUFSIZE - 1]; total_diff[1] -= all_data[3][num_samples-TRENDPROTECTBUFSIZE] - all_data[3][num_samples-TRENDPROTECTBUFSIZE - 1]; total_diff[0] += all_data[2][num_samples-1] - all_data[2][num_samples-2]; total_diff[1] += all_data[3][num_samples-1] - all_data[3][num_samples-2]; if (abs(total_diff[0]) <= (float)XTRENDPROTECTTHRESHOLD) { additional_to_vel[0] = -1000.0f; } else { float avg_accel = all_data[2][num_samples-1] - ((all_data[2][num_samples-1] - all_data[2][num_samples-2])/2.0f); additional_to_vel[0] = avg_accel * duration; } if (abs(total_diff[1]) <= (float)YTRENDPROTECTTHRESHOLD) { additional_to_vel[1] = -1000.0f; } else { float avg_accel = all_data[3][num_samples-1] - ((all_data[3][num_samples-1] - all_data[3][num_samples-2])/2.0f); additional_to_vel[1] = avg_accel * duration; } } else { if(num_samples == 1){ } else { total_diff[0] += all_data[2][num_samples-1] - all_data[2][num_samples-2]; total_diff[1] += all_data[3][num_samples-1] - all_data[3][num_samples-2]; } } } void apply_move_end_check(float **all_data, int num_samples, int moving_end_buf[][MOVINGENDBUFSIZE], int *num_unqualified, int *start, int *end, float *addition_to_vel, float duration, float *total_diff) { if (num_samples > MOVINGENDBUFSIZE) { num_unqualified[0] -= moving_end_buf[0][*start]; num_unqualified[1] -= moving_end_buf[1][*start]; *start = (*start + 1) % MOVINGENDBUFSIZE; *end = (*end + 1) % MOVINGENDBUFSIZE; if (abs(all_data[2][num_samples-1]) <= (float) YMOVENDTHRESHOLD ){ num_unqualified[0] += 1; moving_end_buf[0][*end] = 1; } else { moving_end_buf[0][*end] = 0; } if (abs(all_data[3][num_samples-1]) <= (float) ZMOVENDTHRESHOLD ){ num_unqualified[1] += 1; moving_end_buf[1][*end] = 1; } else { moving_end_buf[1][*end] = 0; } if (num_unqualified[0] >= (int)YMOVENDBIASNUM){ addition_to_vel[0] = -1000.0f; } if (num_unqualified[1] >= (int)ZMOVENDBIASNUM){ addition_to_vel[1] = -1000.0f; } apply_trend_protect(all_data, num_samples, total_diff, addition_to_vel, duration); if (num_unqualified[0] < (int)YMOVENDBIASNUM){ float avg_accel = all_data[2][num_samples-1] - ((all_data[2][num_samples-1] - all_data[2][num_samples-2])/2.0f); addition_to_vel[0] = avg_accel * duration; } if (num_unqualified[1] < (int)ZMOVENDBIASNUM){ float avg_accel = all_data[3][num_samples-1] - ((all_data[3][num_samples-1] - all_data[3][num_samples-2])/2.0f); addition_to_vel[1] = avg_accel * duration; } } else if (num_samples < MOVINGENDBUFSIZE) { addition_to_vel[0] = -1000.0f; addition_to_vel[1] = -1000.0f; apply_trend_protect(all_data, num_samples, total_diff, addition_to_vel, duration); } else { int i; for (i = 0; i < MOVINGENDBUFSIZE; i++) { if (abs(all_data[2][i]) <= (float)YMOVENDTHRESHOLD) { moving_end_buf[0][i] = 1; num_unqualified[0] += 1; } else { moving_end_buf[0][i] = 0; } if (abs(all_data[3][i]) <= (float)ZMOVENDTHRESHOLD) { moving_end_buf[1][i] = 1; num_unqualified[1] += 1; } else { moving_end_buf[1][i] = 0; } addition_to_vel[0] = -1000.0f; addition_to_vel[1] = -1000.0f; } apply_trend_protect(all_data, num_samples, total_diff, addition_to_vel, duration); } } void get_new_velocity (float *original_speed, float *addition_to_vel) { if (addition_to_vel[0] == -1000.0f) { original_speed[0] = 0.0f; } else { original_speed[0] += addition_to_vel[0]; } if (addition_to_vel[1] == -1000.0f) { original_speed[1] = 0.0f; } else { original_speed[1] += addition_to_vel[1]; } } void get_new_position (float *original_position, float *cur_speed, float duration) { original_position[0] += cur_speed[0] * duration; original_position[1] -= cur_speed[1] * duration; } void insert_new_vel_to_buffer(float** vel_buffer, float time, float* cur_vel, int num_samples) { vel_buffer[0][num_samples - 1] = time; vel_buffer[1][num_samples - 1] = cur_vel[0]; vel_buffer[2][num_samples - 1] = cur_vel[1]; } void insert_new_pos_to_buffer(float** pos_buffer, float time, float* cur_pos, int num_samples) { pos_buffer[0][num_samples - 1] = time; pos_buffer[1][num_samples - 1] = cur_pos[0]; pos_buffer[2][num_samples - 1] = cur_pos[1]; } void insert_new_color_to_buffer(float **color_buffer, int r, int g, int b, float time, int num_samples) { color_buffer[0][num_samples - 1] = time; color_buffer[1][num_samples - 1] = (float) r; color_buffer[2][num_samples - 1] = (float) g; color_buffer[3][num_samples - 1] = (float) b; } void initialize_color_table(RGB rgb_table[][HORIZONTALNUMCOLOR]){ rgb_table[0][0] = (RGB){255, 77, 210}; rgb_table[0][1] = (RGB){255, 77, 77}; rgb_table[0][2] = (RGB){255, 179, 102}; rgb_table[0][3] = (RGB){133, 224, 133}; rgb_table[0][4] = (RGB){77, 121, 255}; rgb_table[1][0] = (RGB){255, 0, 191}; rgb_table[1][1] = (RGB){255, 0, 0}; rgb_table[1][2] = (RGB){255, 128, 0}; rgb_table[1][3] = (RGB){51, 204, 51}; rgb_table[1][4] = (RGB){0, 64, 255}; rgb_table[2][0] = (RGB){179, 0, 134}; rgb_table[2][1] = (RGB){179, 0, 0}; rgb_table[2][2] = (RGB){204, 102, 0}; rgb_table[2][3] = (RGB){31, 122, 31}; rgb_table[2][4] = (RGB){0, 45, 179}; } RGB get_new_color(float *cur_location, RGB rgb_table[][HORIZONTALNUMCOLOR]) { int x; int y; if (cur_location[0] < -0.03f) { x = 0; } else if (cur_location[0] >= -0.03f && cur_location[0] < -0.01f) { x = 1; } else if (cur_location[0] >= -0.01f && cur_location[0] < 0.01f) { x = 2; } else if (cur_location[0] >= 0.01f && cur_location[0] < 0.03f) { x = 3; } else { x = 4; } if (cur_location[1] > 0.0165f) { y = 0; } else if (cur_location[1] > -0.0165f && cur_location[1] <= 0.0165f) { y = 1; } else { y = 2; } return rgb_table[y][x]; } void output_all_to_serial(float **all_data, int num_samples) { int i; for (i = 0; i < num_samples; i++) { printf("%6.3f,%7.5f,%7.5f,%7.5f\n",all_data[0][i],all_data[1][i],all_data[2][i],all_data[3][i]); wait(0.01); } printf("Number of samples = %d\n", num_samples); printf ("End Transmission!\n"); } void output_color_to_serial(float **color_data, int num_samples) { int i; for (i = 0; i < num_samples; i++) { printf("%6.3f,%d,%d,%d\n", color_data[0][i], (int)color_data[1][i], (int)color_data[2][i],(int)color_data[3][i]); wait(0.01); } printf("Number of samples = %d\n", num_samples); printf ("End Transmission!\n"); } void output_to_serial(float **vel_data, int num_samples) { int i; for (i = 0; i < num_samples; i++) { printf("%6.3f,%7.5f,%7.5f\n", vel_data[0][i], vel_data[1][i],vel_data[2][i]); wait(0.01); } printf("Number of samples = %d\n", num_samples); printf ("End Transmission!\n"); }