【正文】 題 目： 基于 51 單片機(jī)的 家庭防盜系統(tǒng)的 設(shè)計(jì) 學(xué) 院： 物理與電子工程學(xué)院 專 業(yè)： 電子信息工程 畢業(yè)年限： 學(xué)生姓名： 李保康 學(xué) 號(hào)： 202072020214 指導(dǎo)教師： 白曉娟 1 摘要 隨 著社會(huì)經(jīng)濟(jì)的快速發(fā)展 ,科學(xué)技術(shù)水平的日益提高 ,特別是生活節(jié)奏的加快 ,人們對(duì)防盜設(shè)備的需求量大大增加 ,對(duì)偷盜等事故進(jìn)行監(jiān)測(cè)和報(bào)警系統(tǒng)的要求也愈高。而在居民住宅區(qū)、機(jī)房、辦公室等小型防火單位 ,需要設(shè)置一種單一區(qū)域聯(lián)網(wǎng)、廉價(jià)實(shí)用的防火防盜探測(cè)報(bào)警器 ,因此 ,研制一種結(jié)構(gòu)簡(jiǎn)單、價(jià)格低廉的防火防盜報(bào)警器是非常 必要的。采用傳感器電路檢測(cè)非法闖入 ， 一旦 發(fā)現(xiàn)盜賊潛入 ,傳感器電路檢測(cè)到信號(hào)后 ,送至單片機(jī)主機(jī)提出申請(qǐng) ,待單片機(jī)響應(yīng)后 ,驅(qū)動(dòng) 蜂鳴器 報(bào)警裝置報(bào)警。 關(guān)鍵詞 ： 單片機(jī) ；熱釋電 紅外傳感器 ； 報(bào)警電路 2 Abstract With the rapid development of the socioeconomic, scientific and technological level increasing, especially the accelerated pace of life, people demand to fire, theft device greatly increased monitoring and alarm system, theft, fire and other accidents requirements is also higher. Fire burglar alarm system in China has experienced from scratch, from the simple to the plex development process, more and more high degree of intelligence. At present, many manufacturers more emphasis on research and development for large warehouses, shopping malls, office buildings, hotels and other places large fire burglar alarm system, a centralized regional police control mode, the system plexity, high cost. Small fire units in residential areas, room, office, need to set up a single regional working, cheap and practical fire alarm detection alarm, therefore, developed a simple, inexpensive fire burglar alarm is necessary. This thesis is based on AT89S52 microcontroller as the core of the fire burglar alarm, not only the police but also the category of alarm information is displayed, the choice of the smoke sensor pyroelectric infrared sensor for the detection of ponents, the use of multisensor information fusion technology design can be used for smallscale agricultural production, such as fire, theft alarm. In this thesis, the design and reliable operation, easytofire burglar alarm with antitheft, antifire. Including fire alarm and illegal intrusion alarm two alarm type. Sensor circuit detects trespassing and fires the event of an accident, the sensor circuit detects the signal sent to the microcontroller host application is made until the microcontroller response, driving sound and light alarm device alarm. Main functions and features of the alarm from both hardware and software, elaborate alarm working principle, design ideas and implementation process, antijamming design, it has a good antijamming capability. The alarm device is low cost, reliable, 3 practical, flexible functional form, is generally used in agricultural production, warehouse and family simple place. After the theoretical analysis and field operation test to prove that this design is reasonable, reliable products can replace some of the expensive products. Key words: Microcontroller。 4 目 錄 1緒論 .............................................................. 1 防盜報(bào)警系統(tǒng)的概述 ............................................ 1 國(guó)內(nèi)外防盜控制系統(tǒng)的歷史、現(xiàn)狀與發(fā)展 .......................... 1 研究的目的和意義 .............................................. 2 設(shè)計(jì)任務(wù)與要求 ................................................ 3 方案選擇論證 .................................................. 3 2系統(tǒng)設(shè)計(jì) .......................................................... 4 系統(tǒng)功能 ...................................................... 4 系統(tǒng)框圖 ...................................................... 4 單片機(jī)的介紹 .................................................. 4 傳感器的選擇 .................................................. 8 熱釋電傳感器的紅外輻射與紅外探測(cè)的原理結(jié)構(gòu) ................ 9 紅外測(cè)溫原理 .............................................. 9 熱釋紅外傳感器的結(jié)構(gòu) ...................................... 9 菲涅爾透鏡 ............................................... 12 熱釋電紅外感應(yīng)模塊電氣參數(shù) ............................... 13 熱釋電紅外感應(yīng)模塊功能特點(diǎn) ............................... 13 熱釋電紅外感應(yīng)模塊使用說(shuō)明 ............................... 14 LED 指示燈的顯示 ............................................ 19 PT2262/PT2272 無(wú)線發(fā)射接收 數(shù)碼管顯示電路 4硬件設(shè)計(jì) ......................................................... 31 單片機(jī)最小系統(tǒng)電路 ........................................... 31 熱釋電紅外感應(yīng)模塊電路 ....................................... 31 報(bào)警電路 ...............................................