手机导航系统的设计与实现

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1、山东大学硕士学位论文手机导航系统的设计与实现姓名：杨领芝申请学位级别：硕士专业：软件工程指导教师：洪晓光20070420山东大学硕士学位论文原因，我们开发了有现实意义的手机导航系统。目前软件产品已经能够初步用于运营商的增值服务系统中，且应用情况良好，为开发Java手机软件，开发基于地理信息系统的业务提供了开发经验。关键词：J2ME；Dijkstra算法；Doja；优化算法；～垃圾回收山东大学硕士学位论文ABSTRACTWiththepopularityofmobilecommunicationsequipmentandtherapidgrowthoftheglobalmobileph

2、onemarket，expandingfunctionsofcellphoneshasbecomeatrend．Inrecentyears，withtheincreasingnumberofusersandthepromotionofspaceinformationservices，intelligentcellphonemapnavigationsystemhasgraduallybecomeahotresearchtopicwhichattractstheattentionofmanydevelopersandconsumers．Accordingtotherailwaytraf

3、ficinformationwithcellphonesandmobiledevices，mobilephonenavigationsystemprovidesshor．testpathinformationformobileusers．Bothinthefixedplaceandinthecourseofthecampaign，atanyplaceandatanytimepeoplewhowithmobilephonewillgettheshortestpathinformation．Theauthorsinvolvedinthewholesystemrequirementsana

4、lysis，conceptualdesign，detaileddesign，systemimplementationandsystemtestingintheentireprocess，Algorithmoptimizationandimprovingsystemperformance，whichiscompletedindependentlybytheauthor．Thekeypointinthedevelopmentofmobileapplicationsonthememorysizeandresponsetimerequirementsarerelativelyhard．The

5、authorwithhisanalyticalexpertisetocarryoutthisdifficultissueandcontinuestooptimizethedataandapplications．aftertheoptimizationtestsandaReroptimization，finallysolvedtheproblem，raisethemaximumcellphonenavigationsystemperformanceandoptimizethemainalgorithm．Inthispaperhowtoimprovesystemperformancech

6、aracteristicsofthisprocessarediscussedindetail．OptimizationalgorithmisthecontinuationandimprovementmethodsofDijkstraalgorithm．Improvingtheperformanceofthemechanismi§basedonjavaextensionofthewasterecovery．Theseabovetwotechniquespr01c,ideavaluablereferenceforJ2MEmemorylimitationsofthesetechniques

7、forthedevelopmentofmobileapplications．Inintroducinguse．UML(UnifiedModelingLanguage．UnifiedModelingLanguage)modelingapplications．Useanobject—orientedelaborateontheideasand山东大学硕士学位论文methodsofthesearchfunctiononthedesignandimplementa