文档介绍：火灾报警系统设计
作者姓名:
专业名称:测控技术与仪器
指导老师:
摘要
火灾已成为我国常发性和破坏性以及影响力最强的灾害之一。在工业和民用建筑、宾馆、酒店、图书馆、科研和商业部门,火灾报警系统已成为必要的装置。火灾报警系统对现代建筑起着极其重要的安全保障作用。火灾报警控制器是火灾报警系统的核心。
火灾报警系统通过一定的方式向火灾报警控制器发出火灾报警信号,火灾报警控制器收到报警信号后,立即发出声光报警,并打开消防联动装置。本设计的检测装置由离子感烟传感器UD-02和与之配套的专用集成电路DQ-295等组成,通过对现场的火灾参数采集,模/数转换,地址编码,然后传送给单片机,由单片机进行相应的运算处理,判断现场是否发生火灾。这种信号处理方式将单片机用于火灾模式判别,可以根据火灾发生时,火灾参数的发展变化规律来识别真假火灾,不同于传统单一的定值判别方式,有利于提高火灾判别的准确性。
关键词火灾报警系统;火灾探测器;单片机; 控制; 消防联动
ABSTRACT
In our country, as a disaster, the fire has many characteristics, such as: mediocrity, breakage and influence. . In the instruction of industry and civil, hotel, grogshop, library, the department of scientific research and trade, the fire alarm system has e the necessary installation. The fire alarm system has important functions to the modern buildings. The fire alarm system controller is its core.
Fire alarm system of hotel sends out the correlated signal to the single Chip puter in some way,then the single Chip puter will drive the Acousto-optics alarm device and the linkaged fire preventional device after receive the this Paper,the mointor deveice is made of Ion feeling smoke sensor with the model of UD-02 and its corresponding integrated connection chip with the model of DQ- will gather all the fire Parameter ,then Process the data in A/D converter in order to judge whether there may be a fire or not,the core unit of this Processing way of signal is a single Chip puter,it has the ability to identificate the true or false fire according to the processed is very advantage to inhance the accurate degree of the fire.
Keywords: Fire alarm system;fire detector;MCU; control ;
linkaged fire preventional device
目录
摘要 I
ABSTRACT II
目录 III
1 绪论 1
1
现有火灾自动报警系统比较 1
传统火灾探测技术 2
智能火灾探测技术 2
火灾报警系统在国内的发展情况 3
本设计研究的主要任务及意义 4
2 系统原理及总体方案设计 5
系统原理 5
系统设计 6
系统各模块的设计 6
系统总构架的设计 6
3 系统硬件设计 8
硬件组成 8
烟雾信号采集模块 9
9
离子感烟