毕业论文 基于gps公交站台自动报站系统的研究

《毕业论文 基于gps公交站台自动报站系统的研究》由会员上传分享，免费在线阅读，更多相关内容在学术论文-天天文库。

1、毕业论文毕业论文院(系)物理与电子电气工程学院专业电子信息科学与技术题目基于GPS公交站台自动报站系统的研究36毕业论文摘要：车载卫星定位系统，又称自动车辆定位系统，对它的研究起始于二十世纪七十年代。最初的应用是为了解决汽车文明带来的日益严重的城市交通问题。时至今日，车载卫星定位系统集合全球卫星定位技术，现代移动通信一技术，地理信息系统技术于一身，不仅在智能交通系统中担负主要作用，同时还可以提供防盗防抢劫报警，紧急医疗求助等多种服务。但是，由于目前车载卫星定位系统的无线传输大多采用GSM短消息通信技术，试验表明通过GSM短消息承载的数据通信业务，实际应用的传输

2、时延不小于6秒，这对于实时性要求较高的需求，难以提供令人满意的应用。因此，采用GPRS技术来替代GSM无线数据传输部分，通过GPRS高达171.2kbps的通信速率，实现低于秒级的实时定位数据传输，成为车载卫星定位系统的发展方向。本文通过对GPS卫星定位理论，卫星数据处理的深入研究，提出一套基于GPRS无线通信技术的车载GPS卫星定位系统的设计方案。关键词:GPS卫星定位，GPRS无线通信。Abstract：GlobalPositioningSystemofvehicles，alsoknownasautovehicleslocatingsystemisrese

3、archedstartingofin1960s.Theproposeofstudyistofindasolutionfortheheavytraficissuesinbigcitiesthatcausebythecivilizationofautomobiles.Nowadays，autovehicleslocatingiscomposeofGlobalPositioningSystem，wirelesscommunicationandGlobalgeographicalSystem.Itisnotonlytheessentialpartofintellige

4、nttransportationsystem，butalsoprovidinggrandagainsttheft，grandagainsthighjack，medicalemergenceandsoforth.However，thecommunicationpartofautovehicleslocatingisbasedonGSM-SMSwhichcannotofferreal-timeapplications.ThebearingofGPSofautomobile'sdevelopmentisusingGPRStechnologythathashighsp

5、eedof171.2kbpstochangetheGSMpart.AfterthattheGlobalPositioningSystemofvehicleswilloferreal-timeapplication.KeyWords:GlobalPositioningSystemofvehicles，GPRScommunicationsystem.36毕业论文目录1绪论················································································32第二章GPS系统的定位原理与基础

6、·······································42.1GPS概述····································································42.2GPS组成····································································52.3全球卫星定位的基本原理··············································72.4GPS数据丢失的补偿方案·············

7、·································112.5小结·········································································153第三章智能公交服务系统车载终端的硬件设计·······················163.1车载终端的概述·························································163.2系统设备的选择和功能········································

8、········163.3小结····