畢業(yè)設(shè)計(jì)論文聲控警報(bào)器設(shè)計(jì)(已修改)
2025-07-05 16:36 本頁面
【正文】 安徽城市管理學(xué)院學(xué) 年 論 文題 目 聲控報(bào)警器 姓 名 程 艷 敏 所在學(xué)院 安徽城市管理職業(yè)學(xué)院 專業(yè)班級(jí) 08 屆應(yīng)用電子 學(xué) 號(hào) 0817027 指導(dǎo)教師 陳 芳 日 期 2022年 10 月 26 日 聲控報(bào)警器摘要：在當(dāng)今社會(huì)上防盜系統(tǒng)越來越受到人們的重視。但是市場上的報(bào)警器大部分都是用于一些大公司財(cái)政機(jī)構(gòu)。價(jià)格高昂,一般人們難以接受。如果再設(shè)計(jì)和生產(chǎn)一種價(jià)廉、性能靈敏可靠的防盜報(bào)警器，必將在防盜和保證財(cái)產(chǎn)安全方面發(fā)揮更加有效的作用。本課程主要介紹了簡易的聲控報(bào)警器的電路設(shè)計(jì)和電路板的制作。以此電路為依據(jù)只需更換相應(yīng)的報(bào)警顯示元件即可改裝成不同類型的報(bào)警器，如紅外報(bào)警器, 紅外線聲先報(bào)警器等。這種電路主要由聲控放大電路、單穩(wěn)態(tài)觸發(fā)器電路、報(bào)警電路組成，設(shè)計(jì)利用壓電陶瓷片作為聲傳感器獲得信號(hào)并將其轉(zhuǎn)換為電壓信號(hào)，經(jīng)場效應(yīng)管放大后觸發(fā)由 NE555集成芯片構(gòu)成的單穩(wěn)態(tài)觸發(fā)器和多諧振蕩器,輸出電壓驅(qū)動(dòng)蜂鳴器工作。經(jīng)過調(diào)試，實(shí)現(xiàn)課程要求。關(guān)鍵字：場效應(yīng)管 VT66；NE555；單穩(wěn)態(tài)觸發(fā)器；多諧振蕩器 Voiceactivated alarm Abstract ：Today people pay more and more attention on antitheft system. But the alarm on the market most of which are used in some large financial institutions. The high price of general is difficult to accept. If we can design and manufacture a kind of cheap and reliable performance of sensitive antitheft alarm, that will guarantee the security and property security to play a more effective role. This course introduces the simple voiceactivated alarm circuit design and circuit board production. Based on this circuit only shows the replacement of the corresponding ponents of the alarm can be converted into different types of alarms, such as infrared detectors, and the infrared detectors sound first. This circuit mainly by the voice amplifier circuit, monostable multivibrator circuit, alarm circuit, the design of the use of piezoelectric ceramics as a sound sensor and the signal was converted to voltage signals, amplified by the FET integrated triggered by NE555 chip consisting of monostable multivibrator and multiharmonic oscillator, buzzer driver output voltage work. After missioning, it’s founcation will mach the course’s requirements.Key words: C9013。NE555。Oneshot。Astable Multivibrator目錄前言 ...................................................................................................................................................1第 1 章 設(shè)計(jì)任務(wù)要求及方案論證選擇 ...................................................................................2第 2 章 系統(tǒng)框圖 .......................................................................................................................3第 3 章 電路原理圖及工作原理 .....................................................................................................4 原理圖 ................................................................................................................................4 聲音的采集放大 ................................................................................................................5 傳感器的介紹 傳 感 器 的 定 義 .....................................................................5 場 效 應(yīng) 管 放 大 電 路 .............................................................................................9 時(shí)鐘信號(hào)產(chǎn)生電路 ..........................................................................................................12.....................................................................................................................12 NE555 構(gòu)成單穩(wěn)態(tài)觸發(fā)電路 ..............................................................................15 NE555 構(gòu)成的多諧振蕩電路 ..............................................................................19第 4 章 電路板的組裝 ...................................................................................................................22 電路板的制作過程 ...................................
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