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1、摘要在公共場(chǎng)所(例如學(xué)校、機(jī)關(guān)、居民區(qū)、廠礦企業(yè)等)的樓道中和車流量較小的偏遠(yuǎn)地區(qū),長(zhǎng)明燈現(xiàn)象十分普遍,從而造成了極大的能源浪費(fèi)。在今天電力能源供應(yīng)比較緊張的情況下,在沒有人員活動(dòng)的深夜讓這些燈關(guān)掉一些,不僅可以節(jié)約能源,也能夠節(jié)約一些開支。本設(shè)計(jì)采用MCS-51單片機(jī)作為主控端與各路燈的控制核心。聲音傳感器、鍵盤模塊、光敏電阻等作為系統(tǒng)的輔助電路。分別實(shí)現(xiàn)了對(duì)開關(guān)燈時(shí)間的控制,不同環(huán)境明暗與不同交通情況下的路燈智能控制。該系統(tǒng)可以設(shè)定每只路燈的開關(guān)燈時(shí)間,還可以通過傳感器來識(shí)別外部環(huán)境的明暗變化和有無車輛與人員通過,是一種實(shí)用的路燈控制系統(tǒng)。該控制系統(tǒng)有十分明顯的節(jié)電效果,
2、同時(shí)維修量也大大減少了,從而節(jié)約了資金,有良好地使用效果。白天光照強(qiáng)度高,不管過路者發(fā)出聲音多大,燈泡都不會(huì)發(fā)亮。夜晚光線變暗,光敏電阻檢測(cè)到信號(hào),傳達(dá)至聲音檢測(cè)電路,使其開始工作。當(dāng)檢測(cè)到聲響時(shí),它就將聲音信號(hào)傳送給單片機(jī),控制路燈打開。幾秒鐘后,如果沒有聲響,則再通過單片機(jī)來控制路燈熄滅,達(dá)到節(jié)能節(jié)電的目的。研究該系統(tǒng)的重要性在于利用單片機(jī)來控制路燈的亮滅,不僅實(shí)現(xiàn)了節(jié)能節(jié)電的目的,同時(shí)提高了對(duì)外界環(huán)境變化檢測(cè)的靈敏度,使整個(gè)路燈控制系統(tǒng)變得更加智能化?!娟P(guān)鍵詞】MCS-51單片機(jī);智能控制;鍵盤模塊;聲音傳感器;光敏電阻AbstractInschools,residen
3、tials,organs,minesandotherpublicplacesofpubliccorridorandfewcarsinaremotearea,theever-burninglampsphenomenaareverycommon,causedatremendouswasteofenergy.Today,electricenergysupplybecomesmorenervous.However,nopersonnelactivitiesturnsomelightsoffinthelatenight,whichcannotonlysaveenergy,butalso
4、cansavesomespending.ThisdesignusestheMCS-51asthemasterandasthecorecontrolofthestreetlamp.Weusethekeyboardmodule,soundsensors,andphotoconductiveresistanceastheauxiliarycircuitofthissystem.Theyrespectivelyrealizedthecontrolofthetimetoturnoffthelights,theintelligentcontrolofthestreetlampindiff
5、erentenvironmentanddifferenttrafficconditions.Thesystemcannotonlysettheopentimeandturn-offtimeofeachstreetlamp,butalsocanidentifythebrightnesschangesofexternalenvironmentandsenseifthereareobjectsorpeoplepassedby.Itisakindofpracticalcontrolsystemofthestreetlamps.Itspowersavingeffectisobvious
6、.Atthesametime,ithelpsreducethemaintenancequantitygreatly,andsavethemoney.Theuseeffectisgood.Duringtheday,nomatterhowloudapedestrianvoiceis,itwillstillnotmakethelightbulbshine.Whenthenightlightisdimmed,thesounddetectioncircuitwillwork.Aslongasthereisavoicedetected,thedetectedsoundwillbetran
7、smittedtothemicroprocessor,thencontrolthelightstoopen.Afewsecondslater,themicroprocessorwillcontrolthelightsoff,toachievethepurposeofenergysavingandelectricitysaving.Theimportanceofstudyingthesystemistousemicroprocessortocontrolthelights,notonlytoachieve