公交车报站系统的设计

1西安航空职业技术学院毕业设计（论文）论文题目：公交车站自动报站器的设计所属系部：电子工程系指导教师：职称：助教学生姓名：学号:07202126专业：电子信息工程技术西安航空职业技术学院制2西安航空职业技术学院毕业设计（论文）任务书题目：公交车站自动报站器的设计任务与要求：本课题要求设计一公交车自动报站系统，以实现公交车的语音自动报站，即在进站、出站时候自动播报语音提示信息及服务用语，同时利用LED点阵电路进行汉字显示。本设计要求利用AT89C51作为主控芯片完成主控电路的设计，辅助电路要求包括语音电路、汉字点阵显示电路、电源电路等。时间：2009年11月1日至2009年12月20日共7周所属系部：电子工程系学生姓名：学号：专业：电子信息工程技术指导单位或教研室：电子信息工程技术教研室指导教师：职称：助教西安航空职业技术学院制3摘要公交车已经成为一般工薪族和学生族出门必须的交通工具，目前公交车上采用的公交报站系统具有语音和显示报站的基本功能，但由于报站时采用司机手动切换，一方面增加了司机的劳动强度，另一方面由于司机的误报或漏报，造成乘客误下或漏下，对于公交运营产生了很大负面影响，更会对乘客造成很多不必要的影响。为此，研究公交车自动报站系统是非常必要的。本课题主要研究的是基于AT89C51的公交车自动报站系统，该系统在公交车到站前语音报站，并且有LED数码管显示，到总站时公交车可向总站发送到站信息，方便总站安排公交车次。本课题要求设计一公交车自动报站系统，以实现公交车的语音自动报站，即在进站、出站时候自动播报语音提示信息及服务用语，同时利用LED点阵电路进行汉字显示。本设计要求利用AT89C51作为主控芯片完成主控电路的设计，辅助电路要求包括语音电路、汉字点阵显示电路、电源电路等。公交车报站系统主要由四个部分组成，即主控电路、脉冲检测电路、语音电路以及LED点阵汉字显示电路。关键词：自动报站；80C51单片机；语音芯片；LED4AbstractThepublictransportationalreadybecamethegeneralwageraceandthestudentracewentoutmustthetransportationvehicle,atpresentonthepublictransportationusesthepublictransportationnewspaperstationsystemhadthebasicfunctionwhichthepronunciationandthedemonstrationnewspaperstood,butbecausethenewspaperstoodtimeusedthedrivermanualcut,ontheonehandincreaseddriver'slaborintensity,ontheotherhandbecausedriver'smisinformationorfailedtoreport,createdthepassengerbymistakeunderorthemildchronicbloodyvaginaldischarge,hashadtheverygreatlynegativeinfluenceregardingthepublictransportationoperation,couldhaveverymanynonessentialinfluencestothepassenger.Therefore,studiesthepublictransportationautomaticnewspaperstationsystemisextremelyessential.Thistopicmainresearchisbasedonat89C51PUBICTRANSPORTATIONAUTOMATICNEWSPAPERSTATIONSYSTEMfront,thissystemstationsofarrivalthepronunciationnewspaperstationinthepublictransportation,andhastheLEDnixietubetodemonstrate,tomainterminalwhenthepublictransportationmaystationofarrivaltheinformationtothemainterminaltransmission,convenientmainterminalarrangementpublictransportationcoachnumber.Thistopicrequestdesignsapublictransportationautomaticnewspaperstationsystem,realizesthepublictransportationpronunciationautomaticnewspaperstation,namelyisenteringthestation,outputtingtimedisseminatesnewsthevoicepromptinformationandtheservicelanguageautomatically,simultaneouslycarriesontheChinesecharacterdemonstrationusingtheLEDlatticeelectriccircuit.ThisdesignrequestusingAT89C51tookthemastercontrolchipcompletesthemastercontrolelectriccircuitthedesign,auxiliarycircuitrequestincludingpronunciationelectriccircuit,Chinesecharacterlatticedisplaycircuit,powercircuitandsoon.Thepublictransportationnewspaperstationsystemmainlyiscomposedbyfourparts,namelymastercontrolelectriccircuit,pulseexaminationelectriccircuit,pronunciationelectriccircuitaswellasLEDlatticeChinesecharacterdisplaycircuit.Keyword:Automaticnewspaperstation;80C51monolithicintegratedcircuit;pronunciationchip;LED5目录前言..........................................................................................................................................................................11设计目标及方案论证............................................................................................................................................21.1设计的主要目标任务.....................................................................................................................................21.2技术指标.........................................................................................................................................................21.3方案的选择与论证.........................................................................................................................................21.3.1方案比较................................................................................................................................................21.3.1.1方案一..............................................................................................................................................................21.3.1.2方案二..............................................................................................................................................................31.3.2方案选择................................................................................................................................................32硬件电路的设计.....................................................................................................................................................32.1主控电路的设计.............................................................................................................................................42.1.1关于AT89C51单片机............................................................................................................................42.1.1.1主要性能..........................................................................................................................................................42.1.1.2引脚功能说明.............................................................................................................................