基于Linux的高速磁浮列车车载诊断系统开发

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1、西南交通大学硕士学位论文基于Linux的高速磁浮列车车载诊断系统开发姓名：李春江申请学位级别：硕士专业：检测技术与自动化装置指导教师：曾怡达20100501西南交通大学硕士研究生学位论文第1I页AbstractMaglevtrain，suspendabovetrack,isanewmeanoftransport，whichisbasedonnon—contactelectromagneticlevitationprinciple．Becauseoftheadvantagesofmaglevtrainandnationalconditions，Chinaactivelycarries

2、outthelocalizationoftheadvancedtechnologies，whileintroducingthemin．Throughtheacquisitionofstatussignalofeachcomponentsalongwimpartoftheanalogdata,Maglevtraindiagnosisnetworkismainlyusedforon-lineelectricalandelectroniccomponentsdiagnosistodeterminethefunctionalfailuresandexecuterelevantcommand

3、operations，whichisthereasonwhytheroleitplaysinthesecurityofMaglevtrainisSOvitalthatitisalsoknownasthe”nervecenter”．Inthisthesis，withanin-depthunderstandingoftheprincipleandstructureofthesystem，thefreeandopensourceRTLinux，ahardreal-time，multitaskingoperatingsystembuiltbyputtingpatchestothestand

4、ardLinuxkernel，works嬲thesoftwareoperatingplatform，sincestandardLinuxhasapoorreal—timeperformanceandfailstomeetreal··timerequirementsofthesystem．Real-timeperformanceoftheachievedvehiclediagnosticsystem，basedonembeddedPC104，istested．ThisthesisbeginswithananalysisofcurrentstudiesOildiagnosticsyst

5、emandtheresearchbackground，followedbytheembeddedoperatingsystemfeatures，advantages，andsometypicalreal-timeoperatingsystem．RTLinuxisintrodueedwithananalysisofmosereasonsthatleadtothepoorreal—timeperformanceofLinux．ThereisadetailedresearchontheprincipleoftheRTLinuxsystem，mechanism，systemfeatures

6、andprocedures．，thenthisthesisdiscussestheestablishmentoftheRTLinuxoperatingplatformbasedonPC104Then,basedonunderstandingsoffunctions，workingprinciplesandprocessofvehiclediagnosticnetwork，thisthesisproposesadesignplanfortherealizationofMaglevvehiclediagnosticnetworkanddividesitintoseveralmodule

7、sinaccordancewiththeirdifferentfunctions，suchas：driver,module，dataacquisitionmodule，transmissionmodulefordataindifferentaddressspace，TCP／IPnetworkcommunicationsandthegraphicuserinterfaceofdiagnosticssystem．Allthetechniquesneededinthisdi