【正文】 3 硬件電路各部分電路設(shè)計(jì) ?????????????????? ? ?? 7 單片機(jī) 控制系統(tǒng)電路 ???????????????????? ? 7 主控芯片的性能以及標(biāo)準(zhǔn)功能 ???????????????? 7 主控芯片的主要結(jié)構(gòu)及引腳功能 ????????? ? ???? ? 8 單片機(jī)控制部分電路 ?????????????????? ? 10 紅外線發(fā)射 部分 ?????????????????????? 11 紅外線接收 部分 ?????????????????????? 12 聲光報(bào)警電路 ?????????????????????? ? 13 電源電路 ??????????????????? ?? ??? ? 14 系統(tǒng)總體電路 ????????????????? ? ????? 15 4 紅外線防盜報(bào)警器的軟件設(shè)計(jì) ??????????????? ? ?? 16 系統(tǒng)的主流程 ?????????????????????? ? 16 系統(tǒng)的匯編語言程序 ???????????? ? ??????? 17 5 系統(tǒng)的調(diào)試及性能分析 ?????????????????? ?? ? 20 系統(tǒng)的調(diào)試 ?????????????????? ? ????? 20 紅外線防盜報(bào)警器系統(tǒng)的性能分析 ?????????????? 20 6 報(bào)警器誤報(bào)及處理意見 ??????????????????? ?? 21 故障引起的誤報(bào)及處理意見 ????????????????? 21 安裝引起的誤報(bào)及處理意見 ???????????????? ? 21 環(huán)境引起的誤報(bào)及處理意見 ???????????????? ? 21 IV 總結(jié) ???????????????????????????? 22 謝 辭 ???????????????????????????? 23 參考文獻(xiàn) ???????????????????????????? 24 1 前言 隨著社會(huì)的發(fā)展，農(nóng)村城鎮(zhèn)化和人員流動(dòng)性增大，社會(huì)治安狀況更趨復(fù)雜，因此作為社會(huì)的基本單元 —— 家庭的防范問題就顯得尤為重要。s living standard has been greatly improved. A variety of highgrade household electrical appliances and the valuables have for many families. However, some lawless elements are also more and more. This is seen most security awareness is not strong enough. Causing steal phenomenon it is often seen. Therefore, more and more households in property safety is concerned about. Security has bee an important topic. Infrared antitheft alarm is a kind of intelligent alarm system, can greatly improve the safety degree of the households, effectively guarantee the residents39。在 CPU 程序運(yùn)行以后控制輸出口電平使得蜂鳴器與發(fā)光二極管組成的聲光報(bào)警電路同時(shí)進(jìn)行聲光報(bào)警。 防盜就成了一項(xiàng)重要的課題。各種高檔家電產(chǎn)品和貴重物品為許多家庭所擁有。然而一些不法分子也是越來越多。 紅外線防盜報(bào)警器是一種 智能報(bào)警系統(tǒng)，可以大大提高了居民家庭 的安全程度，有效保證了居民的人身財(cái)產(chǎn)安全。 并通過單片機(jī)系統(tǒng)向聲光報(bào)警電路發(fā)出信號(hào)，達(dá)到 聲光報(bào)警的目的。 personal and property safety. Because infrared is not exposed to light, has strong confidentiality and secrecy, therefore in security, alert security device has been widely used, through the infrared transmitting and receiving system for sensing whether someone is breaking into, if the detected someone broke in, then the system will send out alarm sound and light alarm circuit sounds to the people to remind. The system based on singlechip AT89S52 series as the core, using the infrared emission tube and the infrared receiving tube for transmitting and receiving device, by an inverter inverting indirect control CPU chip. In the CPU program to run after the control of output level makes the buzzer and the light emitting diode prising an acoustooptic alarm circuit at the same time the sound and light alarm. And through the single chip microputer system to sound and light alarm circuit sends out signals to alarm, the purpose of. This paper has introduced the infrared antitheft alarm significance, development background, development prospects, system basic circuit structure and the software system design. .Keywords:Power Circuit。傳統(tǒng)的機(jī)械式（防盜網(wǎng)、防盜窗）家居防衛(wèi)在實(shí)際使用中暴露出一些隱患，正如國(guó)務(wù)院下達(dá)的《關(guān)于住宅小區(qū)禁止安裝防盜網(wǎng)的建議》中指出 ,防盜網(wǎng)帶來的問題： ⑴ 影響樓房美觀，市容整潔； ⑵ 影響火災(zāi)救援通道； ⑶ 給犯罪分子提供便利的翻越條件；⑷ 時(shí)間久了會(huì)有高空墜物的危險(xiǎn)； ⑸ 壓抑人性自由。本論文通過對(duì)紅外線防盜報(bào)警器的基本原理和基本電路的概述入手，介紹了紅外線防盜報(bào)警器的發(fā)展背景和國(guó)內(nèi)的發(fā)展?fàn)顩r，并具體論述了在電源電路、紅外線發(fā)射和接受電路、單片機(jī)系統(tǒng) 控制電路等。當(dāng)有會(huì)動(dòng)的物體觸犯了這根看不見的紅線的時(shí)候，探頭就會(huì)檢測(cè)到有異常，就會(huì)報(bào)警。紅外線報(bào)警器對(duì)溫度敏感，溫度越高的物體輻射出的紅外線越 強(qiáng)，當(dāng)感應(yīng)到環(huán)境中存在高出背景強(qiáng)度的輻射時(shí) ,就觸發(fā)報(bào)警。振蕩器產(chǎn)生脈沖信號(hào)，經(jīng)波形變換及放大后控制紅外發(fā)光管產(chǎn)生紅外脈沖光線，通過聚焦透鏡將紅外光變?yōu)檩^細(xì)的紅外光束，射向接收端。主動(dòng)式紅外報(bào)警器是點(diǎn)型、線型探測(cè)裝置，除了用作單機(jī)的點(diǎn)警戒和線警戒外，為了在更大范圍有效地防范，也可以利用多機(jī)采取光墻或光網(wǎng)安裝方式組成警戒封鎖區(qū)或警戒封鎖網(wǎng)，乃至組成立體警戒區(qū)。 3 課題研究的目的 近年來，隨著改革開放的深入發(fā)展，電子電器的飛速發(fā)展，人民的生活水平有了很大提高。因此，越來越多的居民家庭對(duì)財(cái)產(chǎn)安全問題十分擔(dān)憂。其中包括被動(dòng)式熱釋電型紅外報(bào)警器。探測(cè)器（報(bào)警器）的種類很多，按所探測(cè)的物理量的不同，可分為微波、紅外、激光、 超聲波和振動(dòng)等方式；按電信號(hào)傳輸方式不同，又可分為