Large Shopping Mall Fire Monitorg System Based On Zigbee Network

In recent years, business trade and the circulation of commodities are growing rapidly, so various of modern large-scale shopping malls have emerged. While with the prosperity of commercial, however, how to build a more flexible and reliable safety fire prevention system became an important subject of modern information society.As a new wireless sensor technology, zigbee technology has a wide development prospects in industry, agriculture, intelligent household, building automation, environmental monitoring area. This paper constructs a fire monitoring system based on the technology of zigbee and embedded web server. Based on this background, The paper present the implementation of the system and software and hardware architecture of LAN remote monitoring terminal. Zigbee module uses of CC2430chips which is made from TI as the core processor. With the deep research on Zigbee protocol stack about the specific function realization of the each layer, I added to the driver about the acquisition and processing of temperature and humidity of DHT11and to realize that the wireless transmission of sensor data between the nodes of Zigbee. Zigbee coordinator will be sent the data which is collected to the ARM9controller by serial bus. After the transplantation of Linux operating system in controller and established the embedded web server of Boa, the data which received in the serial port will be output on a web site by calling in the serial driver from kernel, so users can visit the remote fire monitoring page on PC browser logs and inquire remote temperature and humidity stat by clicking on the button of the page.