Vehicle Detection

Data streams in JSON format are output to the specified DIS channels or webhook URLs, including structured data and images.

Result example:

{
	"event_type": 75008,
	"task_id": "a066974ae 7334649a37257242c5fa4c3",
	"stream_id": "03543400000000000101#1c471506397a48ecab0ba52360bdd430",
	"timestamp": 1535546604,
	"message_id": "0DD1BEA6-634B-11E8-8B0B-407D0FAD9218",
	"image_base64": "/9j/4AAQSkZJRgABAJDA...",
	"data": {
		"vehicles": [{
			"bounding_box": {
				"x": 858,
				"y": 200,
				"w": 679,
				"h": 535
			},
			"vehicle_type": 0,
			"tarpaulin_type": -1,
			"license_plate_id": "XXXXXX",
			"license_plate_type": 0,
			"direction": 1
		}]
	}
}

JSON format

Field	Type	Description
event_type	Int	Output flag of the vehicle detection result. The value is fixed to 75008.
message_id	String	UUID of the JSON output, which uniquely identifies the output record
stream_id	String	Camera ID, which uniquely identifies a camera. For offline videos, video names are displayed to distinguish between different video sources.
timestamp	Int	Timestamp when a vehicle is detected
data	Object	List of fields in the vehicle detection result. For details, see the description of data parameters.
image_base64	String	Base64 code of an image
task_id	String	Task ID

data parameters

Field	Type	Description
vehicles	List<Object>	List of output vehicles

vehicles parameters

Field	Type	Description
bounding_box	Object	Coordinates of a bounding box
vehicle_type	Int	Type of detected vehicles: 0: car 1: dump truck 2: trailer 3: cement mixer 4: sanitation vehicle 5: crane 6: pickup truck 7: bus 8: fuel tanker 9: other
tarpaulin_type	Int	Tarpaulin type of detected dump trucks: -1: non dump truck 0: covered by a tarpaulin 1: not covered by a tarpaulin
license_plate_id	String	License plate. When the license plate cannot be recognized, an empty string is output.
license_plate_type	Int	Color of license plate. 0 indicates unknown, 1 indicates blue, 2 indicates yellow, 3 indicates green (new energy vehicle), 4 indicates white, and 5 indicates black. If the license plate cannot be recognized, the output is 0.
direction	Int	Vehicle direction. 0: approaching. The vehicle head is captured. 1: leaving. The vehicle rear is captured.
detection_id	String	UUID of the reported vehicle. The ID is used to identify whether the alarm points to the same vehicle. You can configure multiple parking lines and departure lines. When a vehicle crosses a line, an alarm is reported. Note that the license plate may be blocked or blurred. As a result, this field may be inaccurate.

bounding_box parameters

Field	Type	Description
x	Int	Horizontal coordinate of the upper-left corner of a bounding box
y	Int	Vertical coordinate of the upper-left corner of a bounding box
w	Int	Width of a bounding box
h	Int	Height of a bounding box