毕业设计--基于单片机公交车语音报站器设计.doc

本科毕业论文（设计）论文（设计）题目：基于单片机公交车语音报站器设计学院：专业：电子信息工程班级：学号：学生姓名：指导教师：2010年5月15日贵州大学本科毕业论文（设计）诚信责任书本人郑重声明：本人所呈交的毕业论文（设计），是在导师的指导下独立进行研究所完成。毕业论文（设计）中凡引用他人已经发表或未发表的成果、数据、观点等，均已明确注明出处。特此声明。论文（设计）作者签名：日期：贵州大学本科毕业论文(设计)第I页目录摘要·············································································IIIABSTRACT···································································IV前言···············································································1第一章语音报站器设计的意义及任务·····································21.1语音报站器设计的意义····························································21.2设计任务···············································································2第二章系统的硬件设计和方案对比选择··································32.1系统设计结构图·····································································32.2系统设计方案对比选择····························································32.2.1MCU微处理控制器的方案对比选择····················································32.2.2LCD液晶显示模块的方案对比选择·····················································42.2.3语音芯片的方案对比选择····································································42.2.4实时时钟电路的方案对比选择······························································52.2.5串口部分的方案选择···········································································6第三章系统的硬件设计电路及元件说明··································73.1MCU微控制器电路·······························································73.2LCD液晶显示电路································································93.3语音芯片电路······································································123.3.1ISD2590引脚的说明···········································································143.3.2ISD2590的操作模式说明如下······························································163.4功放电路·············································································163.5串口部分·············································································173.6按键控制·············································································183.7实时时钟电路······································································18贵州大学本科毕业论文(设计)第II页3.8存储器电路·········································································193.9复位电路·············································································193.10晶振电路···········································································203.11系统电源供电电路·······························································20第四章系统的软件设计····················································214.1中断服务程序······································································214.2录音/放音控制程序·······························································224.3主程序设计·········································································23第五章系统的制作、焊接与调试·········································235.1系统的制作·········································································235.2系统的焊接·········································································235.3系统的调试·········································································24设计总结·······································································25参考文献·······································································26致谢·············································································27附录·············································································28附录一系统的主程序清单·························································28附录二基于单片机公交车语音报站器设计的原理图·······················34附录三基于单片机公交车语音报站器设计的PCB图······················35附录四基于单片机公交车语音报站器设计的元器件清单·················36附录五基于单片机公交车语音报站器设计的实物图·······················37附录六基于单片机公交车语音报站器设计的使用说明····················38贵州大学本科毕业论文(设计)第III页基于单片机公交车语音报站器设计摘要根据AT89S52单片机的特点和公交车报站的特点，本文提出了一种用单片机控制语音芯片进行公交车语音模拟报站的方法，同时给出了软硬件设计的方法，设计过程中包括硬件电路设计和软件程序编写两个方面。本系统硬件利用AT89S52作为CPU进行总体控制，通过ISD2590P语音芯片建立语音信息库，对语音信息进行自由组合，形成变化多样的语音信息，利用LM386功放播出语音信息以及提示语音，同时运用LCD液晶显示器进行站数显示。当公交车到达某站点，用键盘控制本系统工作，通过语音电路输出语音信息和提示，LCD液晶显示器同时显示时间、年、月、日、星期信息。时间采用实时时钟芯片DS1302来获取信息，通过手动键盘，识别语音播放地址，驱动扬声器播放相应站名。该公交车报站器结构简单，使用灵活，功能稳定，音质自然、清晰，无论对于社会或者科研都有一定的研究价值。关键词：公交车，液晶显示器，单片机，语音芯片贵州大学本科毕业论文(设计)第IV页Thedesignofbusstation-voicereportedwerebasedontheMCUAbstractAccordingtothecharacteristicsoftheAT89S52microcontrollerandthecharacteristicsofbus-stop,thispaper,avoicechipwithamicroprocessorcontrolledvoicesynthesizerreportedthebusstation,andgivesthehardwareandsoftwaredesignmethods,designprocess,includinghardwaredesignandtwoaspectsofsoftwareprogramming.ThesystemhardwareusingAT89S52astheCPUforoverallcontrol,theestablishmentbyISD2590voicechipvoiceinformationdatabase,andafreecombinationofvoiceinformationtoformadiversevoicemessage,voicemessagebroadcastusingLM386amplifierandvoiceprompts,whiletheuseofLCD(liquidcrystaldisplay)tostationnumberdisplayed.Whenthebusreachesasite,usethekeyboardtocontrolthesystemwork,theoutputvoiceinformationthroughvoicecircuitsandtips,LCDsimultaneouslyshowstime,year,month,day,weekInformation,realtimeclockchipDS1302usedtoobtaintimeinformationbymanualkeyboard,voicebroadcastaddressrecognition,drivingspeakerbroadcaststationname.Thebus-stopdevicestructureissimple,flexible,functionalstability,andsoundnatural,clearly,regardlessofsocialorscientificresearchhassomevalue.Keywords：Bus,LCD,MCU,VoiceChip贵州大学本科毕业论文(设计)第1页前言随着我国城市建设的发展，对城市服务行业的服务质量要求也越来越高。公交车作为市民出行的主要交通工具，已经被越来越多的市民所熟悉，公交车服务质量它代表了一个城市交通发展的水平。现如今由售票员人工售票，报站的公交车已经基本没有了，无人售票公交车在街头逐渐多起来了，语音报站器也被广泛使用，这在相当大的程度上免除了乘务人员沿途报站的麻烦，给许多不熟悉公交线路的乘客带来了方便。随着电子技术的不断发展，单片机技术的日益成熟，和多媒体技术的普遍应用，使得公交车语音报站器服务更加完善。本设计结合单片机的特点和公交车报站器的特点，提出了一种基于单片机AT89S52来控制语音芯片ISD2590进行公交车语音报站，并通过LCD1602来显示当前实时情况。本设计的论文包括硬件电路设计和软件程序设计两个方面，其中前者主要在第三章中重点叙述，后者在第四章中叙述。在本设计论文的结尾，分别附有与本设计相关的资料，包括设计系统主程序，系统原理图，系统PCB图，系统元件清单，系统实物图及系统使用说明。