基于單片機控制的LED應(yīng)急燈研究畢業(yè)論文.doc

畢業(yè)論文（設(shè)計）論文題目：基于單片機控制的LED應(yīng)急燈的研究學生姓名：所在院系：所學專業(yè)：應(yīng)用電子技術(shù)教育導師姓名：完成時間：摘要本文闡述了LED應(yīng)急燈采用單片機控制的設(shè)計原理與實現(xiàn)方法。先分析應(yīng)急燈技術(shù)概況，提出采用LED照明的優(yōu)點，該照明控制系統(tǒng)的主控制器以AT89C2051單片機為基礎(chǔ)。根據(jù)相關(guān)技術(shù)規(guī)范的要求，在完成傳統(tǒng)應(yīng)急燈基本控制要求的基礎(chǔ)上，完善電路的控制要求，增加輔助控制功能，提高電路的可控性和可視性。主控制器在接收到外部電路送來的信號后，發(fā)出命令控制應(yīng)急燈實現(xiàn)開啟、關(guān)閉、定時放電控制等功能。關(guān)鍵字：LED，應(yīng)急燈，單片機TheControlSystemforLEDEmergencylightBasedonSinglechipMicrocomputerAbstractThepaperexpatiatesonthedesigningtheoriesandimplementationmethodofthecontrolsystemforLEDEmergencylightbySingle-ChipMicrocomputer.Analyzestheemergencylighttechnologysurveyfirst,proposedthatusestheLEDilluminationthemerit,ThehostcontrollerofthecontrolsystemforlightingisbasedonAT89C2051Single-ChipMicrocomputer。Accordingtothecorrelationtechniquestandardsrequest,incompletesthetraditionalemergencylightbasiccontrolrequestinthefoundation,theperfectelectriccircuitscontrolrequest,increasesthesecondarycontrolfunction.Enhanceselectriccircuitscontrollabilityandtheviewability.Themaster-controlunitafterreceivingthesignalwhichexteriorelectriccircuitsends,sendsoutthecommandcontrolemergencylighttorealizeopening,theclosure,functionsandsoontimedelectricdischargecontrol.Keywords:LED,Emergencylight,SingleChipMicrocomputer目錄1緒論.12傳統(tǒng)應(yīng)急燈的分析.12.1傳統(tǒng)應(yīng)急燈的結(jié)構(gòu)和使用中的不足.12.2原因分析及改進方法.23設(shè)計方案的研究.33.1系統(tǒng)設(shè)計分析.33.2系統(tǒng)設(shè)計要點與結(jié)構(gòu).43.3系統(tǒng)的特點與功能要求.54應(yīng)急光源與電源的選擇.64.1傳統(tǒng)應(yīng)急燈光源.64.2LED照明光源發(fā)展.64.3LED優(yōu)點.74.4蓄電池選擇.75硬件功能電路分析與設(shè)計.85.1中央處理單元電路設(shè)計.95.2市電及電源轉(zhuǎn)換電路.115.2.1蓄電池充電電路.115.2.2中央處理單元電源電路.135.3應(yīng)急檢測電路.145.4電池保護電路.155.4.1定期放電電路.155.4.2防