Target Recognition

Service

Enable Target Recognition

Topic: thing/product/{gateway_sn}/services

Direction: down

Method: target_detect_open

Data:

Column	Name	Type	constraint	Description
ai_lens_type	Detection lens	int	0: Visible light, 1: Infrared, 2: Night vision (currently unsupported)	AI lens type
scene_type	Current recognition scene	int	0: General	Default value is 0
target_type_list	List of selected detection types by the user; an empty list indicates recognition of all supported detection types in the current scene	list<int>	See definition of "Target recognition types" below	NULL is acceptable

Example**：**

Topic: thing/product/{gateway_sn}/services_reply

Direction: up

Method: target_detect_open

Column	Name	Type	constraint	Description
result	Is AI recognition enabled	int		0: Success, Non-zero: Failure

Turn Off Target Recognition

Topic: thing/product/{gateway_sn}/services

Direction: down

Method: target_detect_close

Data:

Example**：**

Topic: thing/product/{gateway_sn}/services_reply

Direction: up

Method: target_detect_close

Column	Name	Type	constraint	Description
result	Disable AI recognition operation result	int		0: Success, Non-zero: Failure

Status

Target Recognition Result Reporting

Topic: topic: thing/product/{gateway_sn}/state

Direction: up

Method: target_detect_result_report

Data:

Column	Name	Type	constraint	Description
time	Timestamp	long		Report timestamp
uav_id	UAV ID	String		UAV unique identifier
camera_id	Camera ID	int	0: visible light, 1: infrared	Camera unique identifier
global_pos	UAV Latitude/Longitude	GlobalPos		UAV global position
camera	Camera Parameters	CameraBean		Shooting camera parameters
obj_cnt	Detected Target Count	int		Number of detected targets
objs	Detected Contents	List<ObjCnts>		List of detected target objects

ObjCnts

Column	Name		Type	constraint	Description
tracker_id	Detected Target ID		String		Target tracking ID
cls_id	Detected Target Type		int		Target classification ID, see Target Types table below
bbox	Target Detection Box		BBox		Detection box coordinates of target in frame
pos	Target Latitude/Longitude		GlobalPos		Target latitude/longitude position on map
pic	First Frame Image Path		String		(This may change as the base station and UAV currently cannot capture screenshots)
timestamp					Timestamp when this target was detected

BBox

Column	Name	Type	constraint	Description
x	Target X Coordinate	float		Proportion of the screen
y	Target Y Coordinate	float		Proportion of the screen
w	Target Width	float		Proportion of the screen
h	Target Height	float		Proportion of the screen

CameraBean

Column	Name	Type	constraint	Description
roll	Gimbal Roll Angle	float		Camera attitude angle (roll)
pitch	Gimbal Pitch Angle	float		Camera attitude angle (pitch)
yaw	Gimbal Yaw Angle (Horizontal)	float		Camera attitude angle (yaw)
longitude	UAV Longitude	float		UAV longitude when capturing
latitude	UAV Latitude	float		UAV latitude when capturing
height	UAV Relative Height	float		UAV height relative to takeoff point when capturing
fov	Field of View (FOV)	flaot[]		Camera field of view (degrees)
resolution	Original Image Resolution	`int[]		Original image resolution [width, height]
focal_type	Focal Type	String		Camera focal type (e.g. wide-angle/zoom)

GlobalPos

Column	Name	Type	constraint	Description
latitude	Latitude	float		Latitude coordinate
longitude	Longitude	float		Longitude coordinate
altitude	Altitude	float		Altitude in meters

Target Types

Target Type ID	Target Name
0	Background(Not supported yet)
1	Animal(Not supported yet)
2	Boat
3	Car
4	Pedestrian
5	Cyclist
6	Large Vehicle
34	Drone
35	Smoke
36	Fire
99	No Target Detected