Design And Implement Of Fire Alarm Communication System

The core thought of fire alarm communication system is that it can detect any situation at the earlier fire, and send the information to peoples or linkage equipment, in order to reduce loss of people's life and estate. Right base on this though, fire alarm communication is designed in this paper.The fire alarm communication system is composed of fire alarm control units and fire detectors. The fire detectors comprises smoke fire detectors, heat fire detectors, and flame detectors. The main functions of fire alarm control units is receive and display fire alarm info from fire detectors, surveillance the state of whole system, and control the linkage units. The main function of fire detectors is detect smoke, temperature, flame data etc use sensor, judge fire happened base detect arithmetic, and send alarm info to the fire control units. The main tasks of this work is design and implement high sensitive smoke detectors using laser light and fire alarm control units using computer.In this paper, the status and develop direction of fire detect alarm technology is introduced at first. With the city developed. of our country, society take more notice to development of fire detect alarm technology, peoples realize fire protection more deeply. Now, domestic fire detect alarm technology is drop behind to overseas. For catch up with international step, our country have compiled new national standard which is same to overseas advanced level, fire detect alarm technology is developing with steady steps.And then, the paper analyzes sort and character of fire detect technology in common use, and bring out the design of fire alarm communication system. The fire alarm control units is composed of computer, electrical source, and communication interface. The core of smoke detectors is high sensitive photoelectric sensor circuit and high performance data collection dispose system. In this design, communication in detectors and controller is half-duplex serial communication using bus carrier wave. In part of achievement, the paper introduces and analyzes circuit diagram and program flow chart of this system.At last, this paper bring out the test result of fire sensitivity, prove this system arrive at the design cause.