【正文】 ...............1 現(xiàn)有火災(zāi)自動(dòng)報(bào)警系統(tǒng)比較 ..................................................1 傳統(tǒng)火災(zāi)探測 技術(shù) ...........................................................2 智能火災(zāi)探測技術(shù) ...........................................................2 火災(zāi)報(bào)警系統(tǒng)在國內(nèi)的發(fā)展情況 ..........................................3 本設(shè)計(jì)研究的主要任務(wù)及意義 ..............................................4 2 系統(tǒng)原理及總體方案設(shè)計(jì) ...........................................................5 系統(tǒng)原理 ..................................................................................5 系統(tǒng)設(shè)計(jì) ..................................................................................6 系統(tǒng)各模塊的設(shè)計(jì) ...........................................................6 系統(tǒng)總構(gòu)架的設(shè)計(jì) ...........................................................6 3 系統(tǒng)硬件設(shè)計(jì) .................................................................................8 硬件組成 ..................................................................................8 煙霧信號采集模塊 ..................................................................9 離子感煙傳感器的原理 ....................................................9 離子感煙傳感器專用集成電路 DQ295........................13 離子感煙火災(zāi)報(bào)警器應(yīng)用電路 .....................................15 單片機(jī)控制中心 .....................................................................16 時(shí)鐘電路及其功能要求 .................................................16 中斷系統(tǒng) .........................................................................17 聲光報(bào)警模塊 ........................................................................20 聲音報(bào)警電路 .................................................................20 LED 顯示器 ......................................................................21 接口芯片 8243 .......................................................................22 電源系統(tǒng)設(shè)計(jì) ........................................................................23 消防聯(lián)動(dòng)裝置 ........................................................................25 火災(zāi)報(bào)警系統(tǒng)設(shè)計(jì) IV 4 系統(tǒng)軟件設(shè)計(jì) .............................................................................27 主程序設(shè)計(jì) ............................................................................27 讀數(shù)子程序 ............................................................................27 查找報(bào)警點(diǎn)子程序 ................................................................28 顯示及報(bào)警子程序 ................................................................29 聯(lián)動(dòng)消防 ................................................................................30 延時(shí)子程序 ............................................................................31 5 總結(jié) ................................................................................................32 全文工作總結(jié) ........................................................................32 系統(tǒng)展望 ................................................................................32 致謝 ....................................................................................................34 參考文獻(xiàn) ............................................................................................35 附錄 ....................................................................................................36 火災(zāi)報(bào)警系統(tǒng)設(shè)計(jì) 1 1 緒論 課題背景 火災(zāi)是世界上發(fā)生頻率較高的一種災(zāi)害，幾乎每天都有火災(zāi)發(fā)生。這種信號處理方式將單片機(jī)用于火災(zāi)模式判別，可以根據(jù)火災(zāi)發(fā)生時(shí)，火災(zāi)參數(shù)的發(fā)展變化規(guī)律來識(shí)別真假火災(zāi)，不同于傳統(tǒng)單一的定值判別方式，有利于提高火災(zāi)判別的準(zhǔn)確性 。 火災(zāi) 報(bào)警系統(tǒng)通過一定的方式向火災(zāi)報(bào)警控制器發(fā)出火災(zāi)報(bào)警信號，火災(zāi)報(bào)警控制器收到報(bào)警信號后，立即發(fā)出聲光報(bào)警，并打開消防聯(lián)動(dòng)裝置。火災(zāi)報(bào)警系統(tǒng)對現(xiàn)代建筑起著極其重要的安全保障作 用。 火災(zāi)報(bào)警系統(tǒng)設(shè)計(jì) 作者姓名 : 專業(yè)名稱 :測控技術(shù)與儀器 指導(dǎo)老師 :火災(zāi)報(bào)警系統(tǒng)設(shè)計(jì) I 摘 要 火災(zāi)已成為我國常發(fā)性和破壞性以及影響力最強(qiáng)的災(zāi)害之一 。 在工業(yè)和民用建筑、賓館、酒店、圖書館、科研和商業(yè)部門，火災(zāi)報(bào)警系統(tǒng)已成為必要的裝置?；馂?zāi)報(bào)警控制器是火災(zāi)報(bào)警系統(tǒng)的核心 。本設(shè)計(jì)的檢測裝置由離子感煙傳感器 UD02 和與之配套的專用集成 電路 DQ295 等組成，通過對現(xiàn)場的火災(zāi)參數(shù)采集，模 /數(shù)轉(zhuǎn)換，地址編碼，然后傳送給單片機(jī)，由單片機(jī)進(jìn)行相應(yīng)的運(yùn)算處理，判斷現(xiàn)場是否發(fā)生火災(zāi)。 關(guān)鍵詞 火災(zāi)報(bào)警系統(tǒng)；火災(zāi)探測器；單片機(jī)； 控制； 消防聯(lián)動(dòng) 火災(zāi)報(bào)警系統(tǒng)設(shè)計(jì) II 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 bee 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 MircroComputer in some way,then the single Chip MircroComputer will drive the Acoustooptics 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 UD02 and its corresponding integrated connection chip with the model of will gather all the fire Parameter ,then Process the data in A/D converter in order to judg