【正文】 安徽理工大學(xué) 畢業(yè)設(shè)計(jì) I 多路防盜報(bào)警電路的設(shè)計(jì) 摘要 隨著 時(shí)代的進(jìn)步，人類的科技水平越來(lái)越高， 人們 的安全意識(shí)越來(lái)越強(qiáng) ， 對(duì)隱私的保護(hù)使安 防 行業(yè)很 流行， 防盜 措施尤為 必備。 其中 應(yīng)用的技術(shù)和方式越來(lái)越先進(jìn) 、越來(lái)越多樣化 。多路防盜報(bào)警器的 設(shè)計(jì)呈現(xiàn)多樣化 、先進(jìn) 化 、整合度高的趨勢(shì)。 整個(gè) 電路 只有門磁開關(guān)置于布防之處，更 具有 隱蔽性。s safety consciousness is more and more strong, the protection of privacy and the security industry is very popular, the security measures is especially necessary. The means and ways are more and more advanced and miscellaneous in this area. Multiple burglar alarm has the advantages of convenient, high reliability, it can simultaneously monitor multiple security setting, automatic detection and automatic alarm, it is time saving and convenient. Design of multichannel burglar alarm has diversified, advanced, high degree of integration. We use the magic switch and the operational amplifier to judge an intrusion signal, controllable silicon is involved in the control of alarm signals of timer, a loudspeaker and light bulbs generate alarm signal. In the whole circuit only magic switches are in the defence, this will be easy to hide the circuit. KEYWORDS: burglar alarm, antishort circuit, protection, operational amplifier, 555 timer 安徽理工大學(xué) 畢業(yè)設(shè)計(jì) III 目錄 摘要 ......................................................................................................................................... I ABSTRACT ........................................................................................................................... II 1 緒論 ........................................................................................................................................ 1 什么是防盜報(bào)警系統(tǒng) ..................................................................................................... 1 防盜報(bào)警系統(tǒng)的組成及功能 ......................................................................................... 1 觸發(fā)裝置 .................................................................................................................. 1 控制電路 .................................................................................................................. 1 信號(hào)傳遞途徑 ........................................................................................................... 1 聲光報(bào)警電路 .......................................................................................................... 2 供電電源 .................................................................................................................. 2 防盜系統(tǒng)的發(fā)展?fàn)顩r與未來(lái) ......................................................................................... 2 研究的目的及意義 ......................................................................................................... 2 研究的內(nèi)容和功能 ......................................................................................................... 3 2 電路總體設(shè)計(jì) ........................................................................................................................ 4 電路整體圖原理框圖 ..................................................................................................... 4 電路整體圖原理圖 ......................................................................................................... 4 3 電源電路設(shè)計(jì) ........................................................................................................................ 7 電源電路的組成 ............................................................................................................. 7 電源電路中的整流電路 ................................................................................................. 8 工作原理 .................................................................................................................. 8 負(fù)載兩端的直流電壓 Lv 和流經(jīng)負(fù)載的直流電流 LI 的計(jì)算 ................................. 9 濾波電路 ....................................................................................................................... 10 穩(wěn)壓電路 ....................................................................................................................... 13 穩(wěn)壓電源的質(zhì)量指標(biāo) ............................................................................................ 14 串聯(lián)反饋式穩(wěn)壓電路 ............................................................................................ 15 三端集成穩(wěn)壓器 78L12......................................................................................... 17 整體電源電路圖 ........................................................................................................... 20 4 控制電路 ............................................................................................................................ 222 門磁開關(guān) ..................................................................................................................... 222 集成電壓比較器 ......................................................................................................... 222 可控硅 ......................................................................................................................... 255 安徽理工大學(xué) 畢業(yè)設(shè)計(jì) IV 控制電路總電路圖 ..................................................................................................... 277 5 聲光報(bào)警電路 .................................................................................................................... 288 555 定時(shí)器組成的多諧振蕩器 ................................................................................... 288 555 定時(shí)器 ............................................................................................................ 288 多諧振蕩器 ............................................................................................................ 30 音頻放大電路 ............................................................................................................. 311 聲音信號(hào)報(bào)警電路 ..................................................................................................... 344 光信號(hào)報(bào)警電路 ....................................................