ABSTRACT
According to the traditional environment monitoring process carried out in the laboratory by using a wired network, which is expensive and poorly flexible, a wireless laboratory environment monitoring system based on ZigBee is presented. In this system, the wireless sensor terminal monitoring nodes in the laboratory collect environment parameters, which are transmitted to the server or the remote monitoring through the ZigBee/Ethernet gateway. In this paper, the ZigBee networking method, the hardware and the software design of the system are emphasized. Especially, the workflow of the event handler function in the application layer of the ZigBee terminal node and the ZigBee coordinator are described in detail. The system has the following advantages: simple structure, flexible layout, low cost, etc. The results of experiments show that the system is reliable for data transmission with stable performance.
