Development Of Wireless Fire Observation System

Fire observation system is an important safeguard in modern intelligent buildings. Because the systems undertake to protect life and wealth of people, high reliability and high veracity are needed. Traditional fire observation systems adopt anfractuous wire connect, which restrict distribution design and avail of buildings, bringing many unnecessary troubles to daily life of people. Wireless fire observation system is a new kind system which uses wireless digital transmission technology. The wireless system solves the above problems out effectively.Wireless fire observation system researched in this paper is based on wireless digital transmission module. We chose JZ873 wireless digital transmission module and STR-30 wireless digital transmission module which have low power, small volume, long transfer distance, high reliability and low error rate. They meet the system requirements absolutely. Detector is responsible for perception of the state of the surrounding environment and sent state information through wireless digital transmission module. In the design, detector control circuit and sensor are separate from each other. Users can choose different kinds of sensors according to their needs. The coder can be used to write channel code and ID code of each detector, and show the codes out. In one hand, the wireless interface circuit which connects with wireless digital transmission module can send synchronous signal to detectors in order to eliminate error during long working. On the other hand, it can also send alarm information to the controller, the controller which includes keyboard circuit and liquid crystal display circuit can offers a good man-machine conversation environment, through which users can inquire fire alarm records and change system parameters.The advantages of this system make it can be widely used in modern intelligent buildings, such as low cost, low power, high reliability and better practicability. With the further development of wireless technology, wireless fire observation system will play a more important role in people's daily life.