Research And Design Of Building’s Intelligent Fire Protection Information System

Fires occurred frequently, often resulting in huge economic losses and casualties, the firecause can not be neglected. Modern fire with automatic fire extinguishing system has thedisadvantages of simple structure, high rate of false alarm and low fire efficiency, thereliability of the switch quantity detector affects the whole fire system performance. Peopleon reliability requirements of the fire system have become more sophisticated. This paperpresents reliable and intelligent fire protection information system in order to make up for thelack of domestic fire systems, by the introduction of foreign technology.The intelligent fire protection information system is divided into three layers: the toplevel is the host monitor, the host monitor achieve the scientific and low false alarm ratealgorithm to determine the fire alarm, and use a scientific approach for bad nodes to reducethe false alarm rate; Human Computer Interface provided on-site fire information for thefiremen, and laid the foundation for producing fire project quickly and accurately, at thesame time it recorded fire information for query and access of a ranking system, andimproved the fire efficiency; The middle layer are a fire alarm controller and a fire linkagecontroller, the fire alarm controller controlled the fire alarm equipment, and the firecharacteristic parameters are transmitted to the monitoring host; the fire linkage controllercontrol the fire linkage equipment, at last the fire mission is completed in a timely andeffective manner；The bottom layer is a fire alarm equipment and fire equipment. Analogcomposite type fire detector as a collection of fire scene information is the main tool, after A/D conversion of the fire alarm controller, CAN module transmitted the data to the monitoringhost to provide a comprehensive, reliable fire information, host monitor determine whether afire occurs and sent a alarm signal after analysis, the fire linkage controller control the firelinkage equipment, and complete fighting tasks.DSP chip (TMS320F2812A) is used as the fire alarm controller integrated A/Dconversion module and CAN module, after A/D conversion of the fire field parameters, themedian filtering algorithm improved the reliability of information in further, CAN moduleused to transmit data enhance the anti-jamming capability, at the same time achieved a systemof network nodes to achieve the system’s network.This design used a " centralized management, decentralized control" concept, to design a safe, reliable, high anti-interference capability intelligent fire protection information systems,it reduced the fire system’s false alarm rate, improved the fire efficiency of the fire system,and achieve a network, intelligence and information system, it meet the requirements of themodern cause of the fire protection, with practical common sense.