构建的mesh网络当中，其中的一个门磁传感器代码，它负责申请加入网络，等加入网络成功以后，则根据具体情景，发送“menci,open”,或者“menci,close”-Construction of the mesh network, one of them, a door magnetic sensor code, which is responsible for application to join the network, so join the network are successf