The Research Of Automatic Fire Alarm System Based On Wireless Transmission Module

The system is based on a wireless transmission module to design the fire alarm controller,fire alarm system sub-machine and fire alarm detector.Compared with the traditional system based on wired transmission module,the system overcomes avoid a lot of shortcomings,such as the high failure rate, construction difficulties, high cost disadvantage.Automatic fire alarm controller and fire alarm system sub-machine is based on ATMega128.The hardware circuit includes a power circuit,clock circuit,memory circuits,communication circuits,display and keyboard circuit;The program design adopts structured design method.The program use processing capability,fast C-language. So that they achieve the fire,fault and other displays,information storage and query,data transmission and reception functions.HT46R47 is the core of automatic fire alarm detector.The hardware consists of three parts:power circuit,data acquisition circuit,wireless communication circuits.The source program uses efficient assembly language.It completes the on-site environmental data collection, fault alarm, fire warning and alarm functions.Wireless communication achieve signal transmitting and receiving between fire alarm controller and fire alarm system sub-Machine,fire alarm system sub-Machine and automatic fire alarm detector. It realized data wireless transmission.The system has lots of characteristics,such as the intelligence,wireless data transmission,alarm timely and accurate,simple features and so on. Not only meet the design requirements of the indicators, but also meet the practical needs of on-site fire control.Therefore, it has broad market prospects.