【正文】 安徽理工大學(xué)畢業(yè)設(shè)計 本科畢業(yè)設(shè)計說明書 基于單片機(jī)的智能火災(zāi)報警系統(tǒng) BASDE ON SINGLE CHIP MICROCOMPUTER INTELLIGENT FIRE ALARM SYSTEM 學(xué)院（部） ： 電氣與信息工程 專業(yè)班級 ： 通信工程 072 學(xué)生姓名 ： 張 洋 指導(dǎo)教師 ： 胡長俊 年 月 日 安徽理工大學(xué)畢業(yè)設(shè)計 I 基于單片機(jī)的智能火災(zāi)報警系統(tǒng) 摘要 近年來我國火災(zāi)的頻繁發(fā)生，給國家和人民造成了巨大的損失?；馂?zāi)不可避免，如何降低火災(zāi)造成的損失，就成了本文的研究關(guān)鍵。及時的預(yù)警，是降低火災(zāi)造成的損失的有效方法。本文介紹的就是一款基于單片機(jī)的智能火災(zāi)報警系統(tǒng)。 在文章里，我對單片機(jī)及其他硬件都有介紹。同時對溫度傳感器和煙霧傳感器都有一定的說明。 隨著現(xiàn)代科技的迅速發(fā)展，火災(zāi)報警系統(tǒng)越發(fā)完善，趨向于智能化。智能火災(zāi)報警系統(tǒng)為解決火災(zāi)報警系統(tǒng)存在的兩個難題提供了新的方法和手段，并能有效的處理火災(zāi)真?zhèn)巍? 關(guān)鍵詞 ：單片機(jī)，火災(zāi)，報警系統(tǒng) 安徽理工大學(xué)畢業(yè)設(shè)計 II BASDE ON SINGLE CHIP MICROCOMPUTER INTELLIGENT FIRE ALARM SYSTEM ABSTRACT In recent years the frequent occurrence, our fire to the nation and the people39。s cause great losses. Fire inevitable, how to reduce the loss caused by fire, became the key. Timely warning, is to reduce the loss caused by fire effective method. This paper is a paragraph based on SCM intelligence fire alarm system. In the article, I the SCM and other hardware are introduced. Meanwhile of temperature sensors and smoke sensor has certain instructions. With the rapid development of modern science and technology, and the fire alarm system increasingly perfect, tend to intelligence. Intelligent fire alarm system to solve the fire alarm system of two difficulties existing provides a new method and means, and can effectively deal with fire authenticity. KEYWARDS： microcontroller， fire， alarm system 安徽理工大學(xué)畢業(yè)設(shè)計 i 目錄 摘要 ................................................................... I ABSTRACT .............................................................. II 1 緒論 ................................................................. 1 選題背景 ........................................................ 1 智能火災(zāi)報警系統(tǒng) ................................................ 1 火災(zāi)探測器 ...................................................... 2 火災(zāi)探測器簡介 ............................................................................................................................. 2 火災(zāi)探測器發(fā)展特點(diǎn) ................................................................................................................... 3 火災(zāi)探測器新技術(shù) ........................................................................................................................ 3 2 總體設(shè)計及方案論證 ................................................... 5 工藝技術(shù)要求 .................................................... 5 系統(tǒng)設(shè)計思想 .................................................... 5 方案論證 ........................................................ 6 3 單片機(jī) AT89C51 原理 ................................................... 8 引腳說明 ........................................................ 8 主要性能參數(shù) ................................................................................................................................... 8 工作特性 ....................................................... 11 時鐘振蕩器 ...................................................................................................................................... 11 空閑節(jié)電模式 ................................................................................................................................. 12 掉電模式 ........................................................................................................................................... 13 程序存儲器的加密 ...................................................................................................................... 13 Flash 閃速存儲器的編程 ....................................................................................................... 13 編程方式 ........................................................................................................................................... 14 數(shù)據(jù)查詢 ........................................................................................................................................... 14 Ready/Busy ...................................................................................................................................... 14 程序效驗 ........................................................................................................................................... 15 Flash 編程和效驗的波形時序 .......................................................................................... 15 芯片擦除 ......................................................................................................................................... 16 讀片內(nèi)簽名字節(jié) ......................................................................................................................... 16 編程接口 ......................................................................................................................................... 16 4 前向通道的設(shè)計 ...................................................... 18 溫度傳感器 ..................................................... 18 工作原理 ........................................................................................................................................... 18 試驗結(jié)果 ........................................................................................................................................... 20 安徽理工大學(xué)畢業(yè)設(shè)計 ii 間歇激勵方 式的效果 ................................................................................................................. 21 運(yùn)算放大器 AD595 ................................................ 22 A/D 轉(zhuǎn)換器 ...................................................... 23 A/D 轉(zhuǎn)換器的主要參數(shù) ............................................................................................................. 23 A/D 轉(zhuǎn)換器與 CPU的接口方法 ............................................................................................. 23 A/D 轉(zhuǎn)換器與 CPU之間傳送數(shù)據(jù)的方法 ..........