基于遗传算法的列车自动驾驶系统研究与实现

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1、北京交通大学硕士学位论文基于遗传算法的列车自动驾驶系统研究与实现姓名：张强申请学位级别：硕士专业：交通信息工程及控制指导教师：郜春海20080601北京交通大学硕士学位论文ABSTRACTABSTRACTABSTRACT：AsChina'surbanizationprocess，thecontinuingdevelopmentofcitysizeandincreaseoftheurbanpopulation，existingurbantrafficnetisunabletomeetthedemandsof

2、citytraffic．Accordingtotheinternationallarge-scaleurbantransportationdevelopingexperience,UMTplaysthepivotalroleforeasingurbantrafficpressure．Underthisbackground，itisimportanttodeveloptheATOsystembecauseATOcanimprovetheoperationgefficiency,speedupthetrain

3、pace，andensurethesafety．Geneticalgorithm(GA)isanadvancedintelligentcontrolalgorithm．Itisusedtosolvehighlycomplexissues．Geneticalgorithmforsolvingthemulti—targetsystemproblemlikeATOhasuniqueadvantages．Inthispaper,tomeettheATOsystem’Sneeds，authordesignstrai

4、nautomaticdrivingsystemcontrolstrategywhichisbasedonthegeneticalgorithm，andtheautomatictrainsystemsoftwareandhardwareplatforms．Finally,testthecontrolresultsbysimulationandfieldcertificationtest．Maincontentsareasfollows：(1)StudytheexistingATOsystems，sumupf

5、unctionalrequirements．Improvethedeficienciesandshortcomingsoftheexistingsystem，andproposethemorerealisticrequirements．DesignthestructureofATOsystembasedonthesystemrequirements．(2)DesigntheATOcontrolalgorithm．Theworkiscardedoutinthreesteps：First，manipulate

6、thetrainmodel；second，optimizetherunningprofilebygeneticalgorithm；也ifd，designthecontrollertobeusedtotrackthetargetprofile．Throughthethreesteps，realizetheATOsystemandmeettherequirementsofATO．(3)DesigntheATOsystem．Bothofthehardwareandsoftwarearedesigned．Hard

7、waresystemisdesignedmainlyfromthreeaspects：theoverallplan，selectionofequipment，vehicleinterface．Softwaresystemisdividedinto5modulestointroduce．(4)TesttheATOsystemtoverifycontrollingresults．Thefirststepistovewifytheeffectivenessandensurethenormalfunctionin

8、thelaboratory．Thesecondstepistotestthecontrolresultonthetestingrailway．Fromtheresultofthelaboratorysimulationandfieldtesting，thesystemisabletomeetthebasicrequirementsofATO．IthasimportantpracticalsignificanceofATOsys