follow_me.c File Reference

#include "follow_me.h"
#include "modules/datalink/telemetry.h"
#include "generated/modules.h"

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Macros
#define	FOLLOW_ME_DISTANCE   45
#define	FOLLOW_ME_HEIGHT   75
#define	FOLLOW_ME_MIN_SPEED   1.0f
#define	FOLLOW_ME_GPS_TIMEOUT   5000
#define	FOLLOW_ME_GROUND_TIMEOUT   5000
#define	FOLLOW_ME_FILT   0.9

Functions
void	follow_me_init (void)
	init function More...
void	follow_me_parse_target_pos (uint8_t *buf)
	on receiving a TARGET_POS message More...
void	follow_me_set_wp (uint8_t wp_id, float speed)
	run function More...

Variables
float	follow_me_distance = FOLLOW_ME_DISTANCE
	distance from the ground gps More...
float	follow_me_height = FOLLOW_ME_HEIGHT
	height from the ground gps More...
float	follow_me_heading = 0.
	heading direction in which to hover from (automatically set if ground is exceeding speed) More...
float	follow_me_min_speed = FOLLOW_ME_MIN_SPEED
	minimum speed in m/s which the ground needs to have in order to update the heading More...
float	follow_me_filt = FOLLOW_ME_FILT
	Follow me course sin/cos filter value (higher is harder filter) More...
float	follow_me_diag_speed = 1.0
	Diagonal speed for follow me. More...
float	follow_me_gps_delay = 200
	Follow me GPS delay from the relative positionb packet (in ms) More...
float	follow_me_datalink_delay = 600
	Follow me datalink delay from the ground GPS packet (in ms) More...
float	follow_me_advance_ms = 800
	Follow me waypoint advance time in ms (multiplied by the ground speed) More...
float	follow_me_min_dist = 1
	Follow me minimum distance in meters when trying to approach with a certain speed. More...
float	follow_me_min_height = 30
	Follow me minimum height in meters when approaching with a speed. More...
static uint32_t	ground_time_msec = 0
static bool	ground_set = false
static struct LlaCoor_i	ground_lla
static float	ground_speed
static float	ground_climb
static float	ground_course

Detailed Description

Author

Freek van Tienen freek.nosp@m..v.t.nosp@m.ienen.nosp@m.@gma.nosp@m.il.co.nosp@m.m Control a rotorcraft to follow at a defined distance from the target

Definition in file follow_me.c.

Macro Definition Documentation

FOLLOW_ME_DISTANCE

#define FOLLOW_ME_DISTANCE   45

Definition at line 33 of file follow_me.c.

FOLLOW_ME_FILT

#define FOLLOW_ME_FILT   0.9

Definition at line 58 of file follow_me.c.

FOLLOW_ME_GPS_TIMEOUT

#define FOLLOW_ME_GPS_TIMEOUT   5000

Definition at line 48 of file follow_me.c.

FOLLOW_ME_GROUND_TIMEOUT

#define FOLLOW_ME_GROUND_TIMEOUT   5000

Definition at line 53 of file follow_me.c.

FOLLOW_ME_HEIGHT

#define FOLLOW_ME_HEIGHT   75

Definition at line 38 of file follow_me.c.

FOLLOW_ME_MIN_SPEED

#define FOLLOW_ME_MIN_SPEED   1.0f

Definition at line 43 of file follow_me.c.

Function Documentation

follow_me_init()

void follow_me_init

(

void

)

init function

Definition at line 80 of file follow_me.c.

References ground_set, and ground_time_msec.

follow_me_parse_target_pos()

void follow_me_parse_target_pos

(

uint8_t *

buf

)

on receiving a TARGET_POS message

Definition at line 86 of file follow_me.c.

References LlaCoor_i::alt, f, follow_me_heading, follow_me_min_speed, get_sys_time_msec(), ground_climb, ground_course, ground_lla, ground_set, ground_speed, ground_time_msec, LlaCoor_i::lat, and LlaCoor_i::lon.

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follow_me_set_wp()

void follow_me_set_wp	(	uint8_t	wp_id,
		float	speed
	)

run function

should be called in a flight plan stay block using pre_call will only set the x and y position and not the height

ex: <block name="Track Object"> <stay wp="STDBY" pre_call="object_tracking_run(WP_STDBY)"> </block>

Definition at line 108 of file follow_me.c.

References DefaultChannel, DefaultDevice, ENU_OF_TO_NED, f, follow_me_advance_ms, follow_me_datalink_delay, FOLLOW_ME_DISTANCE, follow_me_distance, follow_me_filt, follow_me_gps_delay, FOLLOW_ME_GPS_TIMEOUT, FOLLOW_ME_GROUND_TIMEOUT, follow_me_heading, FOLLOW_ME_HEIGHT, follow_me_height, follow_me_min_dist, follow_me_min_height, get_sys_time_msec(), gps, gps_tow_from_sys_ticks(), ground_course, ground_lla, ground_set, ground_speed, ground_time_msec, sys_time::nb_tick, State::ned_initialized_i, ned_of_lla_point_i(), State::ned_origin_i, state, stateGetPositionNed_f(), GpsState::valid_fields, waypoint_set_enu(), waypoints, point::x, NedCoor_f::x, NedCoor_i::x, point::y, NedCoor_f::y, NedCoor_i::y, NedCoor_f::z, and NedCoor_i::z.

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Variable Documentation

follow_me_advance_ms

float follow_me_advance_ms = 800

Follow me waypoint advance time in ms (multiplied by the ground speed)

Definition at line 69 of file follow_me.c.

Referenced by follow_me_set_wp().

follow_me_datalink_delay

float follow_me_datalink_delay = 600

Follow me datalink delay from the ground GPS packet (in ms)

Definition at line 68 of file follow_me.c.

Referenced by follow_me_set_wp().

follow_me_diag_speed

float follow_me_diag_speed = 1.0

Diagonal speed for follow me.

Definition at line 66 of file follow_me.c.

follow_me_distance

float follow_me_distance = FOLLOW_ME_DISTANCE

distance from the ground gps

Definition at line 61 of file follow_me.c.

Referenced by follow_me_set_wp().

follow_me_filt

float follow_me_filt = FOLLOW_ME_FILT

Follow me course sin/cos filter value (higher is harder filter)

Definition at line 65 of file follow_me.c.

Referenced by follow_me_set_wp().

follow_me_gps_delay

float follow_me_gps_delay = 200

Follow me GPS delay from the relative positionb packet (in ms)

Definition at line 67 of file follow_me.c.

Referenced by follow_me_set_wp().

follow_me_heading

float follow_me_heading = 0.

heading direction in which to hover from (automatically set if ground is exceeding speed)

Definition at line 63 of file follow_me.c.

Referenced by follow_me_parse_target_pos(), and follow_me_set_wp().

follow_me_height

float follow_me_height = FOLLOW_ME_HEIGHT

height from the ground gps

Definition at line 62 of file follow_me.c.

Referenced by follow_me_set_wp().

follow_me_min_dist

float follow_me_min_dist = 1

Follow me minimum distance in meters when trying to approach with a certain speed.

Definition at line 70 of file follow_me.c.

Referenced by follow_me_set_wp().

follow_me_min_height

float follow_me_min_height = 30

Follow me minimum height in meters when approaching with a speed.

Definition at line 71 of file follow_me.c.

Referenced by follow_me_set_wp().

follow_me_min_speed

float follow_me_min_speed = FOLLOW_ME_MIN_SPEED

minimum speed in m/s which the ground needs to have in order to update the heading

Definition at line 64 of file follow_me.c.

Referenced by follow_me_parse_target_pos().

ground_climb

float ground_climb

static

Definition at line 77 of file follow_me.c.

Referenced by follow_me_parse_target_pos().

ground_course

float ground_course

static

Definition at line 78 of file follow_me.c.

Referenced by follow_me_parse_target_pos(), and follow_me_set_wp().

ground_lla

struct LlaCoor_i ground_lla

static

Definition at line 75 of file follow_me.c.

Referenced by follow_me_parse_target_pos(), and follow_me_set_wp().

ground_set

bool ground_set = false

static

Definition at line 74 of file follow_me.c.

Referenced by follow_me_init(), follow_me_parse_target_pos(), and follow_me_set_wp().

ground_speed

float ground_speed

static

Definition at line 76 of file follow_me.c.

Referenced by follow_me_parse_target_pos(), follow_me_set_wp(), gvf_control_2D(), gvf_parametric_control_2D(), gvf_parametric_control_3D(), gvf_parametric_low_level_control_2D(), gvf_parametric_low_level_control_3D(), and snav_on_time().

ground_time_msec

uint32_t ground_time_msec = 0

static

Definition at line 73 of file follow_me.c.

Referenced by follow_me_init(), follow_me_parse_target_pos(), and follow_me_set_wp().