完整word版基于STM32的数据采集系统英文文献.docx

完整word版基于STM32的数据采集系统英文文献.docx

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完整word版基于STM32的数据采集系统英文文献

DesignoftheDataAcquisitionSystemBasedonSTM32

ABSTRACT

Earlydetectionoffailuresinmachineryequipmentsisoneofthemostimportantconcernstoindustry.Inordertomonitoreffectiveofrotatingmachinery,wedevelopmentamicro-controlleruC/OS-IIsystemofsignalacquisitionsystembasedonSTM32inthispaper,wehavegiventhewholedesignschemeofsystemandthemulti-channelvibrationsignalinaxisX,YandZoftherotaryshaftcanbeacquiredrapidlyanddisplayinreal-time.Oursystemhasthecharacterofsimpiestructure,lowpowerconsumption,miniaturization.

Keywords:

STM32;dataacquisition;embeddedsystem;uC/OS-ll;

1.1.Introduction

Thereal-timeacquisitionofvibrationinrotatingmachinerycaneffectivelypredict,assessanddiagnoseequipmentoperationstate,theindustrygetsvibrationdataacquisitionRapidlyandanalysisinreal-timecanmonitortherotatingmachinerystateandguaranteethesaferunningoftheequipment.Inordertopreventfailure,reducemaintenancetime,improvetheeconomicefficiency,Thepurposeoffaultdiagnosissystemcandetectthesedevicesthroughthevibrationsignalacquisitionofrotatingmachinery,andprocessthedataacquisition,thenitwillmaketimelyjudgmentofrunningstateofequipment.Whilethedataacquisitionmoduleisthecorepartofthefaultdiagnosissystem[1-4].Thepracticalapplicationintheindustrialfield,istheequipmentoperatingparameterswillbeacquiredtomonitorequipmentoperatingstate.Intraditionaldataacquisitionsystems,thedatafromacquisitioncardaregenerallysendintothecomputer,andspecificsoftwarewillbedevelopedforthedataacquisition.ThemaincontributionofthispaperhasdesignedtheSTM32platformwithARMtechnology,thathasbecomeatraditionalmainstreamtechnologyinembeddedsystems,andthecollectingdatatowardthedirectionofhighreal-time,multi-parameter,high-precision,whiledatastoragebecomelargecapacity,moreminiaturizationandportable,andthedevelopmentofmulticommunicationmodeandIong-distaneefordatatransmission.Soastomeettheactualacquisitionsystemmultitaskingrequirements,thisarticlehasdesignedbasedonSTM32micro-controlleruC/OS-llsystemofsignalacquisitionsystem.Therefore,inordertomeettheactualacquisitionsystemmultitaskrequirements,thisnoveltyofthisarticlehasdesignedasignalacquisitionsysteminmicro-controlleruC/OS-IIbasedonSTM32.

2・Architectureofdataacquisitionsystem

Dataacquisitionaskeytechnologyformonitoringequipment,recentlyalotofworkhasbeendoneonit.Anembeddedparalleldataacquisitionsystembasedon

FPGAisOptimizeddesignedwhichwillmakeitreasonabletodivideandallocatehigh-speedandlow-speedA/D[5].Instead,ithasuseahigh-speedA/D

converierandStratixIIseriesofFPGAfordatacollectionandprocessing,inwhichthemaincontributionisusedoftheCompactPeripheralComponent

Interconnect,thesystemhasthecharactersofmodularization,sturdinessandscalability[6].ButremotecontrolwillbeneededinSpecialConditions,thispaperintroducetheembeddedoperatingsystemplatformbasedonWindowsCEanduC/OS-IItodesignaremoteacquisitionandcontrolsystemwiththeGPRSwirelesstechnology[7-8]」nordertoachievethedatasharingofmulti-user,ithasbuildtheembeddeddynamicwebsitefordataacquisitionmanagementanddisseminationwiththeARM9andLinuxoperationsystem[9].AdatacollectionterminaldevicesisdesignedbasedonARM7microprocessorLPC2290andembeddedreal-timeoperatingsystemuC/OS-IItosolvethereal-timeacquisitionofmultichannelsmallsignalandmulti-channeltransmission[10].Ontheotherhands,twoparallel

DSP-basedsystemdedicatedtothedataacquisitiononrotatingmachines,andtheinnersignalconditionerisusedtoadaptthesensoroutputtotheinputrangeoftheacquisition,andthensignalpost-processingbythedesignsoftware,whilethemostfrequentlystructureistouseDASandFPGA-based,andsuchprogramsarealsodependentontheDAScost.

Inordertomeetmarketrequirementsoflowpowerconsumption,lowcost,andmobility,Fig.1inthispaperpresentsthedesignoverallstructurediagramofdataacquisitionsystem.ThroughSPIinterface,thesystemgetsthedatacollectionwith

threeaxisaccelerationsensorintotheSTM32controllerofinnerA/Dconversionmodulewith12-bit,thisprocessisnon-interferingparallelacquisition.Oursystemuses240x400LCDandtouchscreenmodulereal-timetodisplaythecollecteddatainrealtime.

FigJHeadwayFrameworkofSystem

2.1.STM32micro-controller

A32bitRISCSTM32F103VET6,usedastheprocessorinoursystem,comparedwithsimil