# 系统消息

数据上行： fogcloud/{productKey}/{deviceName}/thing/up/sys

method	说明
ping_reply	设备响应 MQTT 是否在线
bind	设备上报 wifi 配网 random
meshkey.request	网关向服务器申请 mesh 的 netkey&appkey&devkey
meshaddr.request	网关向服务器申请子设备的 mesh 地址
productconfig.request	设备向服务器获取产品自定义配置

数据下行： fogcloud/{productKey}/{deviceName}/thing/down/sys

具体数据类型根据 json 数据的 method 字段进行区分：

method	说明
ping	云端探测 MQTT 是否在线
unbind	云端通知设备被 App 解绑
sub.add.start	云端请求网关设备开始子设备配网
sub.add.stop	云端请求网关设备停止子设备配网
meshkey.response	服务器向网关响应 mesh 的 netkey&appkey&devkey
meshaddr.response	服务器向网关响应子设备的 mesh 地址
productconfig.response	服务器向设备响应产品自定义配置

# ping_reply

{ 
  "id": 123, 
  "version": "1.0", 
  "method": "ping_reply", 
  "params": 
    { 
      "cloud_time": "xxxxx" //云端时间戳，单位毫秒
    } 
}

# bind

{ 
  "id": 123, 
  "version": "1.0", 
  "method": "bind", 
  "params": 
    { 
      "random": "xxxxx" //配网时业务服务器生成的随机数
    } 
}

# meshkey.request

{ 
  "id": 123, 
  "version": "1.0", 
  "method": "meshkey.request"
}

# meshaddr.request

{ 
  "id": 123, 
  "version": "1.0", 
  "method": "meshaddr.request",
  "params":
  {
    "node_uuid":"00010203040506070809"
  }
}

# productconfig.request

{ 
  "id": 123, 
  "version": "1.0", 
  "method": "productconfig.request",
  "params":
  {
    "product_key":"xxxxx"
  }
}

# ping

{ 
  "id": 123, 
  "version": "1.0", 
  "method": "ping", 
  "params": 
    { 
      "cloud_time": "xxxxx" //云端时间戳，单位毫秒
    } 
}

# unbind

{ 
  "id": 123, 
  "version": "1.0", 
  "method": "unbind"
}

# sub.add.start

{ 
  "id": 123, 
  "version": "1.0", 
  "method": "sub.add.start",
  "timestamp": xxxxx, //时间戳，单位秒
  "params": {
    "session_id": "xxxx", //唯一id，子设备添加成功后由设备返回
    "timeout": 30, //配网超时时间，单位秒
    "product_keys": ["xx", "xx", "xx"] //网关匹配的子设备类型
  }
}

# sub.add.stop

{ 
  "id": 123, 
  "version": "1.0", 
  "method": "sub.add.stop",
  "timestamp": xxxxx, //时间戳，单位秒
  "params": {
    "session_id": "xxxx", //唯一id，子设备添加成功后由设备返回
  }
}

# meshkey.response

{ 
  "id": 123, 
  "version": "1.0", 
  "method": "meshkey.response",
  "timestamp": xxxxx, //时间戳，单位秒
  "params": {
    "netkey": "000102030405060708090A0B0C0D0E0F",
    "appkey": "000102030405060708090A0B0C0D0E0F",
    "devkey": "000102030405060708090A0B0C0D0E0F",
  }
}

# meshaddr.response

{
  "id": 123,
  "version": "1.0",
  "method": "meshaddr.response",
  "timestamp": xxxxx, //时间戳，单位秒
  "params": {
    "node_uuid":"00010203040506070809",
    "addr": 2
  }
}

# productconfig.response

{ 
  "id": 123, 
  "version": "1.0", 
  "method": "productconfig.response",
  "params":
  {
    "product_key":"xxxxx",
    "config":"xxxxx"
  }
}