苏州经贸学院1b苏州经贸职业技术学院学生毕业设计(毕业论文)基于GPS定位的公交车自动报站系统的设计系别:机电系专业:应用电子技术(电子产品营销)班级:应电0832班学生姓名:李超学生学号:0801083240指导教师:王倢婷王益2010年12月19日苏州经贸学院I目录摘要.................................................................................................................................I前言................................................................................................................................1第一章概述..................................................................................................................21.1GPS国内外发展形势.......................................................................................21.1.1国外研究现状.........................................................................................21.1.2国内发展现状........................................................................................21.2课题研究内容及目标......................................................................................3第二章整体框架及方案比较....................................................................................42.1系统整体框架结构图.......................................................................................42.2单片机的选择...................................................................................................42.3语音芯片的比较...............................................................................................5第三章系统的硬件研究与设计................................................................................73.1各部分电路图...................................................................................................73.1.1单片机的最小系统.................................................................................73.1.2LCD12864液晶显示电路.......................................................................83.1.3ISD4004音频输出电路及按键电路....................................................83.1.4GPS模块接口电路................................................................................93.2系统整体电路图............................................................................................10第四章系统软件的研究与设计..............................................................................124.1主程序流程图..........................................................................................124.2语音模块子程序......................................................................................144.3LCD12864液晶显示子程序...................................................................15第五章系统校验........................................................................................................165.1系统仿真.........................................................................................................165.1.2仿真实现流程.......................................................................................165.2系统运行结果截图.........................................................................................175.2.1开机界面...............................................................................................175.2.2接收信号后...........................................................................................17第六章总结与展望..................................................................................................206.1总结.................................................................................................................206.2展望.................................................................................................................21致谢..............................................................................................................................21参考文献......................................................................................................................22附录..............................................................................................................................23苏州经贸学院I摘要智能公交系统是指智能交通系统重要研究内容,此论文设计了一种基于GPS定位的公交车自动报站系统,它是利用GPS进行数据采集,从而获得车辆位置信息,并结合了语音播放技术,根据公交车所处位置进行自动报站、温磬提示之类的语音服务。它可以改变传统公交车的语音报站必须由司机操控,否则工作的落后方式,可以做到不需要人工介入,从而实现公交车报站完全智能化。该系统以GPS定位技术作为基础来实现自动定位,提供自动报站服务。Intelligenttransportationsystemisanimportantresearchcontentofintelligenttransportationsystem,thispaperdesignedaGPSbusautomaticstationreportingsystembasedonitisusingGPSdatacollection,togetthevehiclelocationinformation,andacombinationofvoiceplaybacktechnology,accordingtothebuslocationautomaticnewspaperstation,WenQingtipslikevoiceservices.Itcanchangethevoiceofthetraditionalbusstationmustbecontrolledbythedriver,otherwisetheworkofthebackwardway,youcandowithoutmanualintervention,soastoachievefullintelligentbusstation.ThesystemusesGPSpositioningtechnologyasthefoundationtorealizeautomaticpositioning,providingautomaticstationservice.关键词:GPS;自动报站系统;STC89C51苏州经贸学院1前言从1831英国的沃尔特·汉考克为他国家制造出了世界上第一辆装载发动机的公共汽车起,如今,公交车已经历经过将近200年的发展过程。从一开始的“闷罐头”到如今配套空调系统;从专人售票至无人售票;从人工报站至半自动语音报站,公交车朝着越来越人性化的方向设计。可是目前存在一个问题,半自动的语音报站系统需要司机在车子进出站的时候进行人工操作,由于这两个时间往往是路面情况的最复杂的时刻,因此容易给行驶中的车辆造成安全隐患。此论文的目标就是进行可替代人工操作来实现公交进出站的全自动的语音报站。利用了STC89C51单片机、ISD4004语音芯片、LCD12864液晶模块来实现需要的功能。单片机的体积小,重量轻,拥有很强的灵活性且价格便宜,得到越来越广泛的应用,例如控制领域、家电产品,智能仪器仪表,计算机外部设备都有重要的用途。在20世纪80年代中期,Intel公司