【正文】 長春工業(yè)大學學士論文 I 畢業(yè)設計、畢業(yè)論文 題 目 火災報警與消防連動系統(tǒng)的設計 學 院 電氣與電子工程學院 專業(yè)班級 指導教師 姓 名 長春工業(yè)大學學士論文 II 摘 要 目前，隨著電子產品在人類生活中的使用越來越廣泛，由此引起的火災也越來越多，在我們生活中到處潛伏著火災隱患。為了避免火災以及減少火災造成的損失，我 們必須按照“隱患險于明火，防患勝于救災，責任重于泰山”的概念設計和完善火災自動報警系統(tǒng)，將火災消滅在萌芽狀態(tài)，最大限度地減少社會財富的損失。 本系統(tǒng)可安裝在各防火單位，它負責不斷地向所監(jiān)視的現(xiàn)場發(fā)射巡檢信號，監(jiān)視現(xiàn)場的溫度、濃度等，并不斷反饋給報警控制器，控制器將接到的信號與內存的正常整定值比較、判斷確定火災。當發(fā)生火災時，可實現(xiàn)聲光報警、故障自診斷、濃度顯示、報警限設置、延時報警及與上位機串口通信等，是一種結構簡單、性能穩(wěn)定、使用方便、價格低廉、智能化的煙霧傳感器，具有一定的實用價值。 消防泵、噴灑泵啟動 ，防煙和排煙風機啟動、切除非消防電源、電梯迫降、防火卷簾的下降邏輯編制，任何確認火災信號均聯(lián)動消防設施動作。在系統(tǒng)設計上，自動確認，用兩組探測器或兩種不同類別的火災探測器同時報警后確定。確認火災后，切除非消防電源和電梯迫降；火災報警后應停止空調送風，關閉電動防火閥，啟動有關部位的防煙和排煙風機、排煙閥等，并接收反饋信號。 關鍵詞 單片機 火災報警 傳感器 聯(lián)動控制系統(tǒng) 長春工業(yè)大學學士論文 III Abstract Now, with electronic products used in human life more and more widely,the resulting fire, more and more, we live in fire hazards lurking around everywhere. To avoid fires and reduce fire losses,we must follow the “hidden dangers fire in prevention is better than disaster relief, the responsibility is extremely heavy”the concept design and improvement of automatic fire alarm system, fire nipped in the bud,the maximum reduce the loss of social wealth. The system can be installed in all fire uints, which is responsible for continuously monitoring the side to start the inspection singal, monitor the site of temperature, concentration, and continuous feedback to the alarm controller, the controller will receive the signal and the normal memory setting value was determined by paring to determine the fire. When fire occurs, can achieve sound and light alarm, fault diagnosis, concentration display, alarm limit settings, delay alarm and serial munication with the host puter is a simple structure, stable performance, easy to use, inexpensive, intelligent smoke sensor, has some practical value. Fire pump, sprinkler pump starts, smoke and exhaust fan starts, the removal of nonfire power, the elevator landing, fire shutter down logic preparation, any confirmation of fire signal fire facilities are linked actions. In the system design, automatic recognition, with two sets of two different types of detectors or fire detectors alarm at the same time determined. Confirmed after the fire, the removal of nonfire power and the elevator landing。 fire alarm should stop after the air supply, turn off the electric fire damper, start the relevant parts of the smoke and exhaust fan, exhaust valves, etc., and receive feedback signals. Keywords ： SCM fire alarm sensor Coordinated control system 長春工業(yè)大學學士論文 IV 目 錄 第一章 緒 論 .......................................................................................................................... 1 選題的背景及意義 ...................................................................................................... 1 國內外的現(xiàn)狀 .............................................................................................................. 2 本文所做的工作 .......................................................................................................... 2 第二章 火災報警與消防聯(lián)動系統(tǒng)的工作原理 ........................................................................... 3 系統(tǒng)總體功能的概述 .................................................................................................... 3 火災報警系統(tǒng)的類型 ................................................................................................... 4 火災探測器類型與原理 ............................................................................................... 5 第三章 系統(tǒng)的硬件設計 ........................................................................................................... 8 系統(tǒng)硬件總體概述 ....................................................................................................... 8 核心芯片 AT89S52 ....................................................................................................... 9 集成溫度傳感器 AD590 ...............................................................................................10 氣體傳感器 TGS202 .................................................................................................... 11 熱釋電紅外傳感器 ....................................................................................................12 電源電路 ..................................................................................................................14 數(shù)碼管驅動芯片 ICM7218............................................................................................15 數(shù)據(jù)采集系統(tǒng) ADC0809 ..............................................................................................16 單片機外圍接口電路 ...................................................................................................17 信號處理電路 ..........................................................................................................19 A/D 轉換模塊 ............................................................................................................19 聲音報警電路 ..........................................................................................................20 數(shù)碼管顯示電路 .......................................................................................................21 燈光報警及控制鍵電路 .............................................................................................22 備用電源自動投入裝置 ............................................................................................24 第四章 系統(tǒng)的軟件設計 ..........................................................................................................25 主程序流程圖 ............................................................................................................25 主程序初始化流程圖 .......................................................................................