网格环境下的车载导航系统

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1、⑧申请同济大学工学硕士学位论文网格环境下的车载导航系统培养单位：一级学科：二级学科：研究生：指导教师：电子信息工程学院计算机科学与技术系计算机软件与理论何启海蒋昌俊教授二oo六年三月AbstractABSTRACTTbday’snavigationsystemneedsmorepowerflllinfonnationcentertOprocesseno姗ousdistributedandheterogeneoustrafficinfoHnation．Illorderto铲aspthetrafficsituationofthewholecity，the㈣binationmechani

2、smforcombiningalldistributinghigh-poweredresourcesofdatastorin蜀computing，analyzinganddecision—maI【in舀aIldconsequenny’allisolateddataresourcesthatcurrentlyexistshouldberecombined．Asthepmductionofhigh-poweredcomputingandfastdevelopmentoflIltemettechnology，GridismoughttohavemaⅡyfcaturesthatliketr

3、a艏caspect，suchasgeographydistributing，resollfceheterogeneity，zoⅡeself-govemment，intefiofcollaboration，etc．neinitialthou曲tofShanghaiTrafficInfo肌ationGridisjustbasedonthosefeaturesofGrid．ItchoosesGridtobethesupponingplatfo皿ofintelligenttrafficsystem．SoitsOlVesmallypmblemswhichtraditionaltraffics

4、ystemcannotsolVeorcannotsolVeef!f'cctiVely．nispaperpresentsatrafficiIlfoIlnationdemonstrationsystemimplementedonEmbeddedIjnuxintheenvi啪mentof1Ya伍clnfbmlationGrid．Supportedbypowerflllback掣oundGridSefvices，tllissystemproVidestheenduserswitllservicessuchasfetching，displaying，analyzingandoutputtin

5、gtrafficinfo肋atjon，especiallydynamicandreal—time昀衔ci响肌ation．IIlte铲atingmodemGridTcchnology'thissystemcanoffcrdynamicorrcal—timeinfo珊ationseⅣices，suchasrealtimetra仃icstatusanddynamicshonestpathscheme，whichOvercomesthelimitationoftraditionalnaVjgationsystems．1’11ispaperexplicitlyintroducesthedes

6、ignandimplementationofourin—vehiclenaVigationsystem．Firstly'itintroducessomekcytheoreticalbasementofsystemdcvelopmem，iIlcludingbasiccontentOfEmbeddedLinux，workingmechanismofMiniGUI，theprincipleofB1uetoothandsoon．BasedonthesetheOries，thispaperintroducesthesystem’shafdwarearchnecture，aIlddoessom

7、efesearchofLinuxkemelportingandsomedeVicedriVersdcvdoping．AfteIthebuildupofhaTdware，OSallddriVers，wediscussedthedesignofournaVjgationsystem，行omthesystem’sIIAbslracIsoftwarearchitecture，keytechnolo百esandthecommunicationmechanismwithbackg