實時交互的虛擬場景仿真子系統(tǒng)及測試案例自動生成子系統(tǒng)研究-基于鐵路區(qū)間信號系統(tǒng)測試評估平臺.pdf

1、同濟大學碩士學位論文實時交互的虛擬場景仿真子系統(tǒng)及測試案例自動生成子系統(tǒng)研究基于鐵路區(qū)間信號系統(tǒng)測試評估平臺姓名：程蓉杰申請學位級別：碩士專業(yè)：控制理論與控制工程指導教師：吳芳美20040302AbstractWiththeapplicationresearchofsystemsimulationtheoriesandtherapiddevelopmentofcomputertechnologysimulatingtherealorim

2、aginedsystemswithdigitalcomputersisattachedmoreandmoreimportance。Inrecentyears，techrlolo露CSofgraphicsandimage，softwareengineering，informmionprocessingandautomaticcontrolhavebeengreatlyimproved，whichexpeditesthedevelopmen

3、tofsystemsimulationHoweverfriendlyuserinterfaceisnotavailableintraditionalsimulationtechnologyandthedegreeofvisualizationislimited，whichaffectstheapplicationofsimulationtechnologyVirtualrealityiSanoutcomeoftherapiddevelo

4、pmentofcomputertechnologyItisallinnovateuserinterfacesimilar幻therealworldScenesimulationtechnologydevelopedbycombiningvirtualrealitytogetherwithsimulationtechnologyhastheadvantagesofbothabove—mentionedtechnologiesandther

5、eforeattractsmorerecognitionUndertheresearchbackgroundoftestingandassessmentofrailwayblocksignalingsystem，theauthordevelopedtheRealtimeinteractivevirtualscenesubsystem，whichhasbeenimprovedfrom2Dto3DThe2Dinteractivevirtua

6、lscenesubsystemhasappliedtheVisualSimulationtheoryandGraphictechnologyanimationtovisualizethetestingresultHoweverwiththedevelopmentofmodemcomputertechnologyandtheimprovementofuser’Srequirement，the2Dtechnologywillgraduall

7、ybereplacedby3DtechnologyTherefore，Underthetheoryofthescenesimulation，theauthordevelopedthe3Dvirtualscenesubsystembasedonthesuccessfulexperiencesofthe2DsubsystemThespotlightofthe3Dsubsystemisthemodulationandhierarchicmet

8、hodTheauthoralsoappliedthetechnologiesoffaultinjection，objectorientedsimulationmodelingandsimulationschedulingwithmessagetransmissionwhendevelopingthe2Dand3DsubsystemTheautomaticgenerationoftestingcasessubsystemalsoplays

9、akeyroleinthewholeplatformConcerningwiththecharacteristicsofthetestingandassessmentplatformforrailwayblocksignaling，theapplicationofPLCispresentedindetailandthemethodofthetestingcasesautomaticgenerationisdiscussedinthisp