Status

Device Topology Update

Topic: sys/product/{gateway_sn}/status

Direction: up

Method: update_topo

Data:

Column	Name	Type	constraint	Description
domain	Namespace of the gateway device	int		Refer to the product support page
type	Product type of the gateway device	int		Refer to the product support page
sub_type	Product subtype of the gateway sub-device	int		Refer to the product support page
device_secret	Device secret of the gateway device	text		Device authentication secret
nonce	Nonce	text		Random number for device authentication anti-replay
version	Model version of the gateway device	text		Thing model protocol version
sub_devices	List of sub-devices	array	{"size": 1, "item_type": struct}	Sub-devices attached to the gateway (e.g., aircraft); empty array indicates sub-device offline
»sn	Sub-device serial number (SN)	text		Unique serial number of the sub-device
»domain	Namespace of the sub-device	int		Refer to the product support page
»type	Product type of the sub-device	int		Refer to the product support page
»sub_type	Product subtype of the sub-device	int		Refer to the product support page
»index	Channel index connecting the gateway device	string		Channel identifier for sub-device connection to gateway
»device_secret	Device secret of the sub-device	text		Sub-device authentication secret
»nonce	Nonce	text		Random number for sub-device authentication anti-replay
»version	Model version of the sub-device	text		Sub-device thing model protocol version

Example:

 //sub_devices online  
{
	"tid": "xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxx",
	"bid": "xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxx",
	"method": "update_topo",
	"timestamp": 1234567890123,
	"data": {
		"domain": 2,
		"type": 119,
		"sub_type": 0,
		"device_secret": "secret",
		"nonce": "nonce",
		"version": "1",
		"sub_devices": [
			{
				"sn": "drone001",
				"domain": 0,
				"type": 60,
				"sub_type": 0,
				"index": "A",
				"device_secret": "secret",
				"nonce": "nonce",
				"version": "1"
			}
		]
	}
}

 //sub_devices offline 
{
    "tid": "xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxx",
    "bid": "xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxx",
    "method": "update_topo",
    "timestamp": 1234567890123,
    "data": {
        "domain": 2,
        "type": 119,
        "sub_type": 0,
        "device_secret":"secret",
        "nonce":"nonce",
        "version": "1",
        "sub_devices":[]
    }
}