基于微控制器的客车火灾报警系统  

Bus-mounted fire alarm system based on MCU

作　　者：李华洋[1] 

机构地区：[1]南阳师范学院,河南南阳473061

出　　处：《现代电子技术》2015年第6期74-77,82,共5页Modern Electronics Technique

摘　　要：在此介绍一种以微控制器Spce061A为核心的公交车火灾报警系统。该系统采用灵敏度,高可靠性好的烃类气体浓度传感器来探测可燃气体。采用浓烟传感器和火焰传感器的组合来探测火灾信号。可燃气体浓度传感器的数据通过微控制器以无线传输的方式送到控制中心由驾驶员观察分析,可以排除其他原因引起的虚警。当烟雾和火焰传感器发现火灾信号以后迅速发出报警信号,同时启动破窗器打破车窗玻璃疏散乘客,启动灭火器扑灭火焰。该系统功能完善,反应速度快,可以快速识别汽油等可燃气体,迅速扑灭可燃油气体引发的火灾,漏警与误警率低。其硬件成本低,工作可靠性好,器件寿命长。系统维护维修方便,升级扩展简单。能够满足当前我国城市公交系统迫切的安全要求。A bus？mounted fire alarm system taking MCU Spce061A as its core is introduced in this article. The hydrocar？bon gas concentration sensor with high sensitivity and high reliability is adopted in the system to detect combustible gas. The combination of smoke sensor and flame sensor is used to detect fire signal. The data from hydrocarbon gas concentration sensor is sent to the control center in wireless transmission mode through MCU for observation and analysis of driver,which can avoid the false alarm caused by other factors. The system give out the alarm signal when the fire signal is detected by smoke sensor and flame sensor. At the same time,the window broker is started to break the window glasses and guide the passengers to get away from the bus,and the fire extinguisher is started up. The system has perfect function and fast reaction speed,can recog？nize fuel gas and put out the fire caused by gas. It has low false alarm rate and missing alarm,low hardware cost,high working reliability and long lifetime. The system’s maintenance and repair is convenient,and its expansion and upgrade are simple. The design can meet the urgent safety requirements of urban public transport system.

关 键 词：SPCE061A 气体浓度传感器 浓烟传感器 火灾探测 

分 类 号：TN919-34[电子电信—通信与信息系统] TP36[电子电信—信息与通信工程]