SZ05-L-STD-2 wireless data transmission module adopts TI scheme chip, which is a radio frequency transceiver and microprocessor that complies with zigbee pro international standards. It has the advantages and characteristics of long communication distance, ultra low power consumption, strong anti-interference ability and flexible and stable networking; it can realize the transparent transmission of data between devices in one-to-many and many-to-many modes; practical MESH networking mode. The module is divided into coordinator, router and terminal node. These three kinds of devices have different network functions. The coordinator is the central node of the network, responsible for the initiation, organization, maintenance and management functions of the network; the router is responsible for data relay forwarding and network maintenance functions; the terminal node only sends and receives data of this node.