From 179bace35aaa32a23ebd7a9cb99d54eae53690f5 Mon Sep 17 00:00:00 2001 From: Antonio Sanniravong Date: Tue, 24 Jun 2014 07:47:16 -0400 Subject: Resets XY velocities when we can't estimate them --- src/modules/position_estimator_inav/position_estimator_inav_main.c | 7 +++++++ .../position_estimator_inav/position_estimator_inav_params.c | 3 +++ .../position_estimator_inav/position_estimator_inav_params.h | 2 ++ 3 files changed, 12 insertions(+) (limited to 'src/modules/position_estimator_inav') diff --git a/src/modules/position_estimator_inav/position_estimator_inav_main.c b/src/modules/position_estimator_inav/position_estimator_inav_main.c index f908d7a3b..5f132453b 100644 --- a/src/modules/position_estimator_inav/position_estimator_inav_main.c +++ b/src/modules/position_estimator_inav/position_estimator_inav_main.c @@ -916,6 +916,10 @@ int position_estimator_inav_thread_main(int argc, char *argv[]) memcpy(x_est_prev, x_est, sizeof(x_est)); memcpy(y_est_prev, y_est, sizeof(y_est)); } + } else { + /* gradually reset xy velocity estimates */ + inertial_filter_correct(-x_est[1], dt, x_est, 1, params.w_xy_reset_v); + inertial_filter_correct(-y_est[1], dt, y_est, 1, params.w_xy_reset_v); } /* detect land */ @@ -931,6 +935,9 @@ int position_estimator_inav_thread_main(int argc, char *argv[]) landed = false; landed_time = 0; } + /* reset xy velocity estimates when landed */ + x_est[1] = 0.0f; + y_est[1] = 0.0f; } else { if (alt_disp2 < land_disp2 && thrust < params.land_thr) { diff --git a/src/modules/position_estimator_inav/position_estimator_inav_params.c b/src/modules/position_estimator_inav/position_estimator_inav_params.c index d88419c25..b79e00274 100644 --- a/src/modules/position_estimator_inav/position_estimator_inav_params.c +++ b/src/modules/position_estimator_inav/position_estimator_inav_params.c @@ -46,6 +46,7 @@ PARAM_DEFINE_FLOAT(INAV_W_Z_SONAR, 3.0f); PARAM_DEFINE_FLOAT(INAV_W_XY_GPS_P, 1.0f); PARAM_DEFINE_FLOAT(INAV_W_XY_GPS_V, 2.0f); PARAM_DEFINE_FLOAT(INAV_W_XY_FLOW, 5.0f); +PARAM_DEFINE_FLOAT(INAV_W_XY_RESET_V, 0.2f); PARAM_DEFINE_FLOAT(INAV_W_GPS_FLOW, 0.1f); PARAM_DEFINE_FLOAT(INAV_W_ACC_BIAS, 0.05f); PARAM_DEFINE_FLOAT(INAV_FLOW_K, 0.15f); @@ -65,6 +66,7 @@ int parameters_init(struct position_estimator_inav_param_handles *h) h->w_xy_gps_p = param_find("INAV_W_XY_GPS_P"); h->w_xy_gps_v = param_find("INAV_W_XY_GPS_V"); h->w_xy_flow = param_find("INAV_W_XY_FLOW"); + h->w_xy_reset_v = param_find("INAV_W_XY_RESET_V"); h->w_gps_flow = param_find("INAV_W_GPS_FLOW"); h->w_acc_bias = param_find("INAV_W_ACC_BIAS"); h->flow_k = param_find("INAV_FLOW_K"); @@ -87,6 +89,7 @@ int parameters_update(const struct position_estimator_inav_param_handles *h, str param_get(h->w_xy_gps_p, &(p->w_xy_gps_p)); param_get(h->w_xy_gps_v, &(p->w_xy_gps_v)); param_get(h->w_xy_flow, &(p->w_xy_flow)); + param_get(h->w_xy_reset_v, &(p->w_xy_reset_v)); param_get(h->w_gps_flow, &(p->w_gps_flow)); param_get(h->w_acc_bias, &(p->w_acc_bias)); param_get(h->flow_k, &(p->flow_k)); diff --git a/src/modules/position_estimator_inav/position_estimator_inav_params.h b/src/modules/position_estimator_inav/position_estimator_inav_params.h index df1cfaa71..9be13637d 100644 --- a/src/modules/position_estimator_inav/position_estimator_inav_params.h +++ b/src/modules/position_estimator_inav/position_estimator_inav_params.h @@ -47,6 +47,7 @@ struct position_estimator_inav_params { float w_xy_gps_p; float w_xy_gps_v; float w_xy_flow; + float w_xy_reset_v; float w_gps_flow; float w_acc_bias; float flow_k; @@ -66,6 +67,7 @@ struct position_estimator_inav_param_handles { param_t w_xy_gps_p; param_t w_xy_gps_v; param_t w_xy_flow; + param_t w_xy_reset_v; param_t w_gps_flow; param_t w_acc_bias; param_t flow_k; -- cgit v1.2.3