[
    {
        "cmd": "GET_BACK_MAC",
        "val": 0,
        "lable": "获取后板MAC地址",
        "timeout": 0
    },
    {
        "cmd": "GET_BACK_UUID",
        "val": 0,
        "lable": "获取UUID",
        "timeout": 0
    },
    {
        "cmd": "GET_BACK_SN",
        "val": 0,
        "lable": "获取SN",
        "timeout": 0
    }
]