设备端通信
### WebSocket通信地址 ：ws://localhost:6868/websocket
|功能|格式|
|:-:|:-:|
|接入设备|{"service": "user.login","key": 设备号}|
|设备端授权返回|{"service": "creates.user", "key": 设备号, "success": True, "taskId": "任务ID", "completed": [],"fail": []}|
|设备端销权返回|{"service": "deletes.user", "key": 设备号, "success": True, "taskId": "任务ID", "completed": [],"fail": []}|