dark0707
/
px4-firmware
forked from Archive/PX4-Autopilot
1
0
Fork 0
Code Pull Requests Activity

Merge pull request #682 from thomasgubler/beta_fwautoland 

Beta: fw autoland remove virtual waypoint
This commit is contained in:
Thomas Gubler 2014-02-23 20:29:21 +01:00
parent 9c02525e39 b7899056f5
commit 17ec859758
2 changed files with 12 additions and 35 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

40
src/modules/fw_pos_control_l1/fw_pos_control_l1_main.cpp
View File

@ -233,7 +233,6 @@ private:
float speedrate_p;
float land_slope_angle;
float land_slope_length;
float land_H1_virt;
float land_flare_alt_relative;
float land_thrust_lim_alt_relative;
@ -278,7 +277,6 @@ private:
param_t speedrate_p;
param_t land_slope_angle;
param_t land_slope_length;
param_t land_H1_virt;
param_t land_flare_alt_relative;
param_t land_thrust_lim_alt_relative;
@ -431,7 +429,6 @@ FixedwingPositionControl::FixedwingPositionControl() :
_parameter_handles.throttle_land_max = param_find("FW_THR_LND_MAX");
_parameter_handles.land_slope_angle = param_find("FW_LND_ANG");
_parameter_handles.land_slope_length = param_find("FW_LND_SLLR");
_parameter_handles.land_H1_virt = param_find("FW_LND_HVIRT");
_parameter_handles.land_flare_alt_relative = param_find("FW_LND_FLALT");
_parameter_handles.land_thrust_lim_alt_relative = param_find("FW_LND_TLALT");
@ -520,7 +517,6 @@ FixedwingPositionControl::parameters_update()
param_get(_parameter_handles.speedrate_p, &(_parameters.speedrate_p));
param_get(_parameter_handles.land_slope_angle, &(_parameters.land_slope_angle));
param_get(_parameter_handles.land_slope_length, &(_parameters.land_slope_length));
param_get(_parameter_handles.land_H1_virt, &(_parameters.land_H1_virt));
param_get(_parameter_handles.land_flare_alt_relative, &(_parameters.land_flare_alt_relative));
param_get(_parameter_handles.land_thrust_lim_alt_relative, &(_parameters.land_thrust_lim_alt_relative));
@ -889,8 +885,10 @@ FixedwingPositionControl::control_position(const math::Vector<2> &current_positi
float airspeed_land = 1.3f * _parameters.airspeed_min;
float airspeed_approach = 1.3f * _parameters.airspeed_min;
float L_wp_distance = get_distance_to_next_waypoint(prev_wp(0), prev_wp(1), curr_wp(0), curr_wp(1)) * _parameters.land_slope_length;
/* Calculate distance (to landing waypoint) and altitude of last ordinary waypoint L */
float L_wp_distance = get_distance_to_next_waypoint(prev_wp(0), prev_wp(1), curr_wp(0), curr_wp(1));
float L_altitude = landingslope.getLandingSlopeAbsoluteAltitude(L_wp_distance, _pos_sp_triplet.current.alt);
float bearing_airplane_currwp = get_bearing_to_next_waypoint(current_position(0), current_position(1), curr_wp(0), curr_wp(1));
float landing_slope_alt_desired = landingslope.getLandingSlopeAbsoluteAltitudeSave(wp_distance, bearing_lastwp_currwp, bearing_airplane_currwp, _pos_sp_triplet.current.alt);
@ -916,7 +914,7 @@ FixedwingPositionControl::control_position(const math::Vector<2> &current_positi
float flare_curve_alt = landingslope.getFlareCurveAltitudeSave(wp_distance, bearing_lastwp_currwp, bearing_airplane_currwp, _pos_sp_triplet.current.alt);
/* avoid climbout */
if (flare_curve_alt_last < flare_curve_alt && land_noreturn_vertical || land_stayonground)
if ((flare_curve_alt_last < flare_curve_alt && land_noreturn_vertical) || land_stayonground)
{
flare_curve_alt = pos_sp_triplet.current.alt;
land_stayonground = true;
@ -935,38 +933,24 @@ FixedwingPositionControl::control_position(const math::Vector<2> &current_positi
//warnx("Landing: flare, _global_pos.alt %.1f, flare_curve_alt %.1f, flare_curve_alt_last %.1f, flare_length %.1f, wp_distance %.1f", _global_pos.alt, flare_curve_alt, flare_curve_alt_last, flare_length, wp_distance);
flare_curve_alt_last = flare_curve_alt;
} else if (wp_distance < L_wp_distance) {
/* minimize speed to approach speed, stay on landing slope */
_tecs.update_pitch_throttle(_R_nb, _att.pitch, _global_pos.alt, landing_slope_alt_desired, calculate_target_airspeed(airspeed_approach),
_airspeed.indicated_airspeed_m_s, eas2tas,
false, flare_pitch_angle_rad,
_parameters.throttle_min, _parameters.throttle_max, _parameters.throttle_cruise,
math::radians(_parameters.pitch_limit_min), math::radians(_parameters.pitch_limit_max));
//warnx("Landing: stay on slope, alt_desired: %.1f (wp_distance: %.1f), calculate_target_airspeed(airspeed_land) %.1f, horizontal_slope_displacement %.1f, d1 %.1f, flare_length %.1f", landing_slope_alt_desired, wp_distance, calculate_target_airspeed(airspeed_land), horizontal_slope_displacement, d1, flare_length);
if (!land_onslope) {
mavlink_log_info(_mavlink_fd, "#audio: Landing, on slope");
land_onslope = true;
}
} else {
/* intersect glide slope:
* if current position is higher or within 10m of slope follow the glide slope
* if current position is below slope -10m continue on maximum of previous wp altitude or L_altitude until the intersection with the slope
* */
* minimize speed to approach speed
* if current position is higher or within 10m of slope follow the glide slope
* if current position is below slope -10m continue on maximum of previous wp altitude or L_altitude until the intersection with the slope
* */
float altitude_desired = _global_pos.alt;
if (_global_pos.alt > landing_slope_alt_desired - 10.0f) {
/* stay on slope */
altitude_desired = landing_slope_alt_desired;
//warnx("Landing: before L, stay on landing slope, alt_desired: %.1f (wp_distance: %.1f, L_wp_distance %.1f), calculate_target_airspeed(airspeed_land) %.1f, horizontal_slope_displacement %.1f", altitude_desired, wp_distance, L_wp_distance, calculate_target_airspeed(airspeed_land), horizontal_slope_displacement);
if (!land_onslope) {
mavlink_log_info(_mavlink_fd, "#audio: Landing, on slope");
land_onslope = true;
}
} else {
/* continue horizontally */
altitude_desired = math::max(_global_pos.alt, L_altitude);
//warnx("Landing: before L,continue at: %.4f, (landing_slope_alt_desired %.4f, wp_distance: %.4f, L_altitude: %.4f L_wp_distance: %.4f)", altitude_desired, landing_slope_alt_desired, wp_distance, L_altitude, L_wp_distance);
}
_tecs.update_pitch_throttle(_R_nb, _att.pitch, _global_pos.alt, altitude_desired, calculate_target_airspeed(airspeed_approach),

7
src/modules/fw_pos_control_l1/fw_pos_control_l1_params.c
View File

@ -348,13 +348,6 @@ PARAM_DEFINE_FLOAT(FW_T_SRATE_P, 0.05f);
*/
PARAM_DEFINE_FLOAT(FW_LND_ANG, 5.0f);
/**
* Landing slope length
*
* @group L1 Control
*/
PARAM_DEFINE_FLOAT(FW_LND_SLLR, 0.9f);
/**
*
*