Event

Airsense warning

Topic: thing/product/{gateway_sn}/events

Direction: up

Method: airsense_warning

Data:

Column	Name	Type	constraint	Description
icao	ICAO aircraft address	text		ICAO civil aviation aircraft address
warning_level	Warning level	enum_int	{"0":"No danger","1":"Level one","2":"Level two","3":"Level three","4":"Level four"}	The higher the danger level, the more dangerous it is. For levels greater than or equal to 3, it is recommended for aircraft to take evasive action.
latitude	Latitude	float	{"max":90,"min":-90}	The latitude of aircraft location is angular values. Negative values for south latitude and positive values for north latitude. It is accurate to six decimal places.
longitude	Longitude	float	{"max":180,"min":-180}	The longitude of aircraft location is angular values. Negative values for west latitude and positive values for east latitude. It is accurate to six decimal places.
altitude	Absolute height	int		Absolute height of flight. Unit: meter
altitude_type	Absolute height type	enum_int	{"0":"Ellipsoid height","1":"altitude"}
heading	Heading	float		The angle of heading is angular values. 0 is north. 90 is east. It is accurate to one decimal places.
relative_altitude	Relative height to aircraft	int		Relative height of flight to aircraft. Unit: meter
vert_trend	Relative height change trend	enum_int	{"0":"Relative height unchanged","1":"Relative height increase","2":"Relative height decrease"}
distance	Horizontal distance to aircraft	int	{"unit":"meter / m"}

Example:

{
	"bid": "xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxx",
	"data": [
		{
			"icao": "B-5931",
			"warning_level": 3,
			"latitude": 12.23,
			"longitude": 12.23,
			"altitude": 100,
			"altitude_type": 1,
			"heading": 89.1,
			"relative_altitude": 80,
			"vert_trend": 0,
			"distance": 100
		}
	],
	"need_reply": 1,
	"tid": "xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxx",
	"timestamp": 16540709686556
}