【正文】 器的分類、基本原理 ?????????? ???????? ? ??? 6 探測(cè)器的種類 ????????????? ? ?????? ???????? 6 常用的火災(zāi)探測(cè)器基本原理 ???? ?????????????? ? ??? 7 設(shè)計(jì) 系統(tǒng)的 總體架構(gòu) ????????????????????????? 8 第 三 章、 煙霧檢測(cè)報(bào)警器硬件設(shè)計(jì) ?????????????????? ?????? 9 煙霧檢測(cè)報(bào)警器的硬件組成 ?????????????? ???????? 9 煙霧檢測(cè)報(bào)警器的硬件設(shè)計(jì) ??????????? ??? ???????? 9 信號(hào)采集及前置放大電路設(shè)計(jì) ?? ???????? ????? ?????? 9 聲音報(bào)警電路 ?? ?????? ???????? ???????? ???? 10 數(shù)碼管顯示電路 ??????????????????????????? 10 狀態(tài)指示燈及控制電路 ???????????????????????? 11 第 四 章、 煙霧檢測(cè)報(bào)警器軟件設(shè)計(jì) ???????????????????? ???? 12 煙霧檢測(cè)報(bào)警器軟件流程 ?????????????????????? 12 主程 序設(shè)計(jì)及流程圖 ???????????????????? 12 報(bào)警子程序設(shè)計(jì)及流程圖 ??????????????????????? 13 結(jié)束語(yǔ) ????????????????? ?????? ????????????? 14 參考文獻(xiàn) ?????????????????? ?????? ??????????? 15 致謝 ???????????????????? ?????? ??????????? 15 第一章 、 自動(dòng)報(bào)警器 簡(jiǎn)介和產(chǎn)生 自動(dòng)報(bào)警器簡(jiǎn)介 現(xiàn) 代化的建筑規(guī)模大、標(biāo)準(zhǔn)高、人員密集、設(shè)備眾多，對(duì)防火要求極為嚴(yán)格。在一個(gè)火災(zāi)自動(dòng)報(bào)警系統(tǒng)中，火災(zāi)探測(cè)器是系統(tǒng)的 “ 感覺(jué)器官 ” ，隨時(shí)監(jiān)視著周圍環(huán)境的情況；而火災(zāi)報(bào)警控制器，則是該系統(tǒng)的 “ 軀體 ”和 “ 大腦 ” ，是系統(tǒng)的核心。 （ 6）紫外線式探測(cè)器。 感光探測(cè)器 :光是熱源輻射的結(jié)果 ,所以感光也就是感應(yīng)輻射 ,人體也在不斷的輻射波 ,但是由于本體溫度較低 ,輻射波的波長(zhǎng)一般較大 ,而火災(zāi)的熱源發(fā)出的光較強(qiáng)能被探測(cè)出來(lái) ,據(jù)某些科學(xué)家分析 ,火災(zāi)發(fā)生的時(shí)候還會(huì)發(fā)出一種獨(dú)特的聲波 ,根據(jù)這種波做出感聲探測(cè)器能有效克服其他探測(cè)器的普遍失誤的情況 . 光電式感煙探測(cè)器由光源、光電元件和電子開(kāi)關(guān)組成。光電元件設(shè)置在多孔 的小暗室里。在種類繁多的激光光源中，半導(dǎo)體激光器由于具有所需激發(fā)電壓低、效率高、脈沖功率大、器件體積小、耐震、壽命長(zhǎng)和價(jià)格低廉等優(yōu)點(diǎn)而受到重視。當(dāng)發(fā)生火災(zāi)時(shí)，溫升速率急劇增加，氣室內(nèi)的氣壓增大，波紋板向上鼓起，推動(dòng)彈性接觸片，接通電接點(diǎn)，發(fā)出報(bào)警信號(hào)。 第 三 章、 煙霧檢測(cè) 報(bào)警器 整體 設(shè)計(jì) 硬件組成 本論文中的煙霧檢測(cè)報(bào)警器以 STC12C5410AD 單片機(jī)為控制核心，采用 MQ2型電阻式半導(dǎo)體傳感器采集煙霧信息。它一方面要接收來(lái)自傳感器送來(lái)的煙霧濃度對(duì)應(yīng)的模擬信號(hào)和故障檢測(cè)信號(hào)，另一方面要對(duì)兩種信號(hào)分別進(jìn)行處理，控制后續(xù)電路進(jìn)行相應(yīng)動(dòng)作；與此同時(shí)查詢是否有鍵按下的請(qǐng)求 [7]。報(bào)警裝置采用無(wú)源壓電式 KM3712x 型蜂鳴器，較一般的蜂鳴器體積大，聲音響亮。紅燈閃亮表示環(huán)境中可 燃煙霧濃度超過(guò)報(bào)警限值，提醒用戶盡快作相應(yīng)安全措施。 STC12C5410AD 單片機(jī)對(duì)傳感器檢測(cè)的煙霧濃度信號(hào)進(jìn)行 A/D 轉(zhuǎn) 換、平均值法濾波、線性化處理后，將濃度值與報(bào)警限設(shè)定值相比較，判斷是否報(bào)警。 參考文獻(xiàn) ： [1] 孫育才， MCS51 系列單片微型計(jì)算機(jī)及其應(yīng)用，第 4 版，東南大學(xué)出版社， 2020 [2] 王慶， Protel 99 SEamp。 (4)如果煙霧和溫度同時(shí)出現(xiàn)異常，則說(shuō)明 有火災(zāi)，發(fā)出火災(zāi)警報(bào)，并及時(shí)將火災(zāi)信息上報(bào)消防指揮中心。s antiracism taskforce, is in London for the Football Association39。 May be back in the past, to oneself the paranoid weird belief disillusionment, these days, my mind has been very messy, in my mind constantly. Always feel oneself should go to do something, or write something. Twenty years of life trajectory deeply shallow, suddenly feel something, do it. 一字開(kāi)頭的年齡已經(jīng)到了尾聲。t want to give vent to out your inner voice can be in the high school children of the feelings in a period, but was eventually infarction when graduation party in the throat, later again stood on the pitch he has sweat profusely, looked at his thrown a basketball hoops, suddenly found himself has already can39。那些曾經(jīng)所謂的非做不可，只是青蔥年華里自己給自己注射的一支強(qiáng)心劑，或者說(shuō)，是自以為是的精神寄托罷了。ll be traveling fast, so despite the distance, it will not be like diving into the deep end of a pool. It will be like he is diving into the shallow end. Skydiver preps for the big jump When he jumps, he is expected to reach the speed of sound 690 mph (1,110 kph) in less than 40 seconds. Like hitting the top of the water, he will begin to slow as he approaches the more dense air closer to Earth. But this will not be enough to stop him pletely. If he goes too fast or spins out of control, he has a stabilization parachute that can be deployed to slow him down. His team hopes it39。 Have declared the end of the encounter that haven39。s time, your ideas are always special to clear. Want, want, line is clear, as if nothing could shake his. Also once seemed to be determined to do something, but more often is he backed out at last. Dislike his cowardice, finally found that there ar