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1、分类号:TP311.1UDC:D10621-408-(2007)5720-0密级:公开编号:2003215048成都信息工程学院学位论文基于J2ME的公交查询系统的设计与实现论文作者姓名:刘应嘉申请学位专业:网络工程申请学位类别:工学学士指导教师姓名(职称):张仕斌(副教授)论文提交日期:2007年06月10日基于J2ME的公交查询系统的设计与实现摘要当今,人类社会已步入信息时代,信息化革命给所有领域带来了前所未有的变革。电脑、手机等信息工具的普及,人们获取信息变得更加完善、快捷。而随着信息技术的飞速发展,手机所蕴藏的无限商机,正在被人们逐步发
2、掘,它不再仅仅局限于通信这一单一功能,正在朝着手提电脑甚至更完善的方向发展。由于手机价廉物美,它已成为人们获得在生活工作上等各种信息服务的最佳选择。在我国,随着城市化的快速发展,城市公交系统也随之迅速扩大,且更加复杂化,找不到合适的乘车路线的事情经常发生。当前,复杂的公交系统使得用户往往处于迷惑的状态,给出行带来诸多不便,而手机公交查询系统的选题也正是基于该背景。本系统通过对城市公交系统的调研,提出了基于站点优先级和邻接矩阵的公交换乘算法和上下矩阵算法;以J2ME作为开发工具,将其移植到用户手机上,借助于无线互联网,能为客户随时随地提供公交信息
3、的查询;通过测试与分析,证实了该系统的可行性及实用价值。关键词:公交查询;站点优先级;公交换乘算法;手机;无线互联网DesignandImplementationofCity-busInformationInquirySystemBasedonJ2MEAbstractAtpresent,thehumansocietymarchesintotheinformationtime;theinformationrevolutionhasbroughttheunprecedentedrevolutionforalldomains.Withthepopul
4、arizationofinformationtoolaslikeComputer,handsetandsoon,obtainingtheinformationismoreandmoreperfectlyandquickly.Butalongwiththerapiddevelopmentofinformationtechnology,theinfiniteopportunitythatthehandsetcontainsisbeinggraduallyexcavatedbythepeople,itnolongermerelylimitstothi
5、ssolefunctionofcommunication,isfacingtothedevelopmentofportablecomputerorevenmoreperfectaspect.Asaresultofthelow-priceandhigh-qualityofthehandset,ithasbecomethebestchoicethatthepeopleobtaineachkindofinformationserviceinlife.Inourcountry,alongwithurbanizedfastdevelopment,city
6、bussystemalsorapidlyexpands,andevenbecomesmorecomplex.So,findingcitybusroutebecomesmoredifficult.Presently,thecomplexcitybussystemcausestheconditionwhichtheusersoftenareconfused,whichbringsmanyinconvenienttopeople,buthandsetcitybusinquirysystemisalsobasedonthisbackground.Fir
7、stly,theauthorinvestigatesthecitybussystem,provides“theAlgorithmbasedonthestandpriorityandthenextlinkingmatrix”and“theAlgorithmbasedonupwardanddownwardmatrix”.Secondly,theseAlgorithmsaretransplantedtothehandsetbyJ2ME,whichcanprovidetheinquiryforcitybusatanytimeandanywherebyt
8、heaidoftothewirelessInternet.Finally,throughtestingandanalyzing,itconfirmst