Research Of A Fire Alarm And Positioning System Based On The Zigbee Technology

In a variety of disasters, fire is one of the major disasters of the most common danger to personal safety. The fire monitoring system works in the embryonic stage of the fire alarm, Line of the traditional wired fire detection system installed complex and difficult wiring。Along with the development of wireless communication, wireless fire monitoring system is a fire warning direction.As a personal network of wireless communication technology,ZigBee wirel ess sensor has become more and more familiar.It is a cheap, low power, close for the automatic control and remote control of the field of wireless networking co mmunication.It implements the sensor data acquisition technology, computer tec hnology and communication transmission technology. There are great prospects for development in environmental monitoring, home and building networks, hea lth and agricultural control.We designed the fire alarm and positioning applications that based on the ZigBee technology after fully studied on the basis of the existing wireless sensor network protocols.When a fire occurs in the network coverage, the vicinity of the sensor node will monitor the fire and police in time.In the fire scene firefighters carry the mobile node to improve the safety factor of fire staff,Because we can use the RSSI distance estimation method to locate firefighters position.In hardware,we choose TI’s newest CC2530that is more smaller and powerful than CC2430.In the transmission distance requirements, we choose the power amplifier chip CC2591.In temperature measurement,we use the Dallas’s DS18B20digital temperature sensor. In software we use the latest Z-Stack protocol stack to simplify the designing of the program.Finally, we did a simple experimental test,the successful communication n etwork achieved the data acquisition, In the monitoring processing,the system ca n policing when the fire occurs, but we should do further research to improve th e location.