Target Recognition

Service

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 (not currently supported)
scene_type	Current recognition scene	int	0：General	Default pass 0
target_type_list	Current user-selected detection type list, pass empty list to indicate all supported detection types in current recognition scene	list`<int>`	See "Target Recognition Types" definition below	Can pass NULL

Example**：**

Topic: thing/product/{gateway_sn}/services_reply

Direction: up

Method: target_detect_open

Column	Name	Type	constraint	Description
result	Whether AI recognition is enabled	int		0 success, non-0 failure

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-0 failure

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

**Direction:**up

Method: target_detect_result_report

Data:

Column	Name	Type	constraint
time	Timestamp	long
uav_id	UAV ID	String
camera_id	Camera ID	int	0, visible light, 1, infrared
global_pos	UAV latitude and longitude	GlobalPos
camera	Camera parameters	CameraBean
obj_cnt	Number of detected targets	int
objs	Detection content	`List<ObjCnts>`

ObjCnts

Column	Name	Type	Description
tracker_id	Detection target ID	String
cls_id	Detection target type	int
bbox	Target detection box	BBox
pos	Target latitude and longitude	GlobalPos
pic	First frame image path	String	(May change, base station and UAV currently cannot get screenshots)
timestamp

BBox

Column	Name	Type	Description
x	Target X coordinate in screen	float	Proportion of screen
y	Target Y coordinate in screen	float	Proportion of screen
w	Target width in screen	float	Proportion of screen
h	Target height in screen	float	Proportion of screen

CameraBean

Column	Name	Type
roll	Gimbal roll angle	float
pitch	Gimbal pitch angle	float
yaw	Gimbal rotation angle (horizontal)	float
longitude	UAV longitude	float
latitude	UAV latitude	float
height	UAV relative altitude	float
fov	Field of view angle	`flaot[]`
resolution	Original image resolution	`int[]
focal_type	Focal length type	String

GlobalPos

Column	Name	Type
latitude	Latitude	float
longitude	Longitude	float
altitude	Elevation altitude	float

Target** Types:**