淮安信息职业技术学院毕业论文题目停车场信息管理系统的研究学生姓名顾浩学号42911131系部电气工程系专业机电一体化班级429111指导教师龚希宾顾问教师揭志远摘要本题为“停车场智能计数器”，文章主要讨论在停车场方面的使用，分析研究其工作过程及原理，并以此为基础讨论其运行。整个设计由以下几个部分组成：稳压电源、光电耦合器、反向互锁识别电路、可逆计数器、预置数电路、译码电路、显示器电路等。主要远离是讨论车辆在驶入或使出时，经过光电耦合器的各个过程，由光电耦合器输出高低电位的变化来给到双上沿D触发器信号，根据车辆的驶入使出，输出端将传送相对应的脉冲信号给计数器，可逆计数器将会根据接收到的脉冲信号进行加计数还是减计数，再经译码器后，由七段数码管显示停车场内现有的车位数量。电路中同时运用了拨码开关来对可逆计数器做预置数，并在此基础上进行加减计数。关键字：光电耦合器、触发器、可逆计数器、脉冲AbstractThesubjectof"counterintelligencecar-park",thearticlefocusedontheuseoftheparkingarea,analysisofitsworkprocessesandprinciples,andasthebasisfordiscussionofitsuse.Thewholedesignfromthefollowingcomponents:powersupply,Photometric,toidentifythedirectionofinterlockingcircuit(evenrisingedgeofDflip-flop),reversiblecounter,presetnumberofcircuits,decodingcircuitry,showcircuit.Themainprincipleistodiscussthevehiclesenteringorleaving,afterallPhotometrictheprocess,fromPhotometricoutputlevelofpotentialchangestotherisingedgeofthedouble-Dtriggersignal,accordingtothetrafficpassingvehiclesOut,theoutputwillbesentcorrespondingtothepulsesignaltothecounter,willbeirreversiblecountertothepulseofthereceivingsignalsorbycountingandcounting,andthedecoder,fromforepartdigitaldisplayoftheexistingcarparksThenumberofparkingspaces.Atthesametimetheuseofcircuitswitchingcodestobereversiblecountertothepresetnumber,andinthiscountingonthebasisofadditionandsubtraction.KeyWords:photometrictriggerreversiblecounterpulse目录TOC\o"1-3"\h\uHYPERLINK\l"_Toc6125"摘要PAGEREF_Toc6125IHYPERLINK\l"_Toc15151"第1章绪论PAGEREF_Toc151511HYPERLINK\l"_Toc16101"PAGEREF_Toc161011HYPERLINK\l"_Toc11329"PAGEREF_Toc113292HYPERLINK\l"_Toc30694"第2章直流稳压电源PAGEREF_Toc306943HYPERLINK\l"_Toc8768"PAGEREF_Toc87683HYPERLINK\l"_Toc25090"PAGEREF_Toc250903HYPERLINK\l"_Toc29237"PAGEREF_Toc292374HYPERLINK\l"_Toc28512"PAGEREF_Toc285126HYPERLINK\l"_Toc23043"PAGEREF_Toc230436HYPERLINK\l"_Toc29024"图3-2光电二极管外形图PAGEREF_Toc290247HYPERLINK\l"_Toc27754"PAGEREF_Toc277547HY