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1、西南交通大学研究生学位论文车辆制动检测装置的研制年姓级二00四级名高敏申请学位级别硕士专业测试计量技术及仪器指导教师王雪梅副教授二oO七年五月西南交通大学硕士研究生学位论文第J}页ABSTRACTWithfastdevelopmentofthehigh-speedcoachandtheheavy-loadfreightcar,thereisofhigherdegreerequirementforreliabilityandsecurityofWainbrakingsystem．Inhistory，theaccidentsofbrakefailurecreatedlargelossfor
2、lifeandproperty．Withthedevelopmentofcomputerdetectiontechnology,installingthereal-timedetectiondevices011thebrakingsystemisalleffectivetechnologicalmeasul"etomakethebrakingsystemworknormally．Thedetectinganddiagnosingdevicecangivewarnswhenthebrakingsystembrakedown,andprovidedatabasisforattendants
3、tosolveproblems,thereforeeilhauceefficiencyoffieldprocessing．Inaddition,becausooftheuarepeatablebrakingfailures，whichOCCtll"duringtrainnmning,thetrainmaintenanceismoredifficultwhenthetraingobacktovehicled印artment．Sothispaperresearchesonthevehiclebrakingdetector,whichisusedtomonitortheworkofthebr
4、akeonrealtimeduringthea．血nmning．Thedesigneddetectorcallstoremassmountofdata,processthedetecteddataandgivewarning．Ithaspositiveeffectontrafficsafetyandcallellha,ucevehiclemaintenancetechnology．Becauseofspecializationoftrain’Sapplication,thevehiclesmayrunthroughseveraldaysfromstartstationtodestina
5、tionandreturntooriginalstation．Inordertomonitortheworkingstatusofthebrakeduringthewholerunningprocedure，large-eapaeitystoragemustbesolvedfirstly．What’smore，consideredagoodhuman-machineintcrfacc,thcembeddedmicroprocessor$3C2410XbaseonARM9ischosenatlast．Thewholedeviceisthree—layersuperimposedstruc
6、ture．Thetop1ay髓isLCD，whichdisplaysstateinformationofbrakingsystemandprovidesgoodhuman-machineinterface．ThesecondlayerisCPUmodule,whichfunctionsarecollecting，processing,diagnosingandstoring．Thelastlayerissignal-conditioningmodule,whichrealizessignalamplificationandfiltering．Thecorrespondingcireui
7、tsarealsodesignedandmade,whichconsistofCPUcoremodule,LCD&TSPinterface，SDinterface,UARTinterface,powerconversionmodule,signalconditioningmoduleandcollectingmoduleetc．BasedonpC／OS-Ⅱreal-timeembeddedoperationsystem,therelatives
