Abstract:

The research aims at realizing wireless transmission data by use of ZigBee.This paper first presents a gas monitoring and alarm system based on the ZigBee technology.The system includes the terminal nodes,coordinator,GSM module,and mobile phone.It realizes communication between the terminal nodes and coordinator by ZigBee wireless networks.The system hardware and software design are analyzed.If the gas concentration exceeds a warning value,an alarm of voice or LED lights will be given.It is shown that the method for transmitting data by use of ZigBee technology is featured with low consumption,short time delay,small size,less investment and etc.

Key words: wireless sensor networks;ZigBee;monitoring system;alarm system