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外文翻译--在南卡罗来纳大学读机电一体化微控制器机械工程专业的学生.pdf

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外文翻译--在南卡罗来纳大学读机电一体化微控制器机械工程专业的学生.pdf

Mechatronicseducationispresentedanddiscussed.Then,focusisshiftedtotheMechatronicseducationintheDepartmentofMechanicalEngineeringattheUniversityofSouthCarolina.cationsSimulationInterfacingsoftwareElectromechanicalSensingActuationFunctionalmodulesCorrespondingauthor.Tel.18037778018fax18037770106.Emailaddressgiurgiutengr.sc.eduV.Giurgiutiu.Mechatronics1520051025–103609574158/seefrontmatterC2112005ElsevierLtd.Allrightsreserved.Subsequently,thepaperexaminesthehardwareandsoftwareusedformechatronics/microcontrollereducation.ExamplesaregivenoftheMC68HC11microcontrollerandthedifferentevaluationboardsusedforacodedevelopmentbembeddedapplications.Then,attentionisgiventothesoftwareusedinthemechatronics/microcontrollereducation.TheTHRSim11comprehensivesimulationandinterfacingsoftwareisdescribed.Finally,thepaperdiscussestheinterfacingbetweenthemicrocontrollerandthevariouselectromechanicalsensingandactuationcomponentsusedinamechatronicsproject.Theuseoffunctionalmodulesforteachinginterfacingskillstomechanicalengineeringstudentsisdescribed.Thepaperfinisheswithconclusionsandfurtherwork.C2112005ElsevierLtd.Allrightsreserved.KeywordsMechatronicsMicrocontrollereducationMC68HC11EvaluationboardsEmbeddedappliMechatronics/microcontrollereducationformechanicalengineeringstudentsattheUniversityofSouthCarolinaVictorGiurgiutiu,JedLyons,DavidRocheleau,WeipingLiuDepartmentofMechanicalEngineering,UniversityofSouthCarolina,Columbia,SC29208,USAAccepted31May2005AbstractAprojecttoenhancethemechatronics/microcontrollereducationofmechanicalengineeringstudentsattheUniversityofSouthCarolinaispresented.First,thestateoftheartindoi10.1016/j.mechatronics.2005.06.0021026V.Giurgiutiuetal./Mechatronics1520051025–10361.Introduction1.1.TheneedformechatronicseducationDuetotheacceleratedgrowthofelectronics,computersandinformationtechnologyindustries,agaphasemergedbetweentheteachingsoftraditionalnonElectricalEngineeringeducatione.g.,MechanicalEngineering,CivilEngineering,ChemicalEngineering,etc.andtheskillsexpectedofnonEEgraduatesenteringthejobmarket.Adelugeofcomputers,sensors,microcontrollers,actuatorshaspermeatedpresentdaysociety.Microcontrollerbaseddevicesandappliancesarefoundinallaspectsofoureverydaylife.Eventheautoindustry,atraditionalmechanicalengineeringfiefdom,isputtingtensofmicrocontrollersinamodernautomobile,andplanstoincreasethisnumbermultifoldasnewtechnologiesarebeingintroduced.AsrevealedbyarecentsitevisittoouruniversitybyBMWautoplantrepresentatives,hybridpropulsion,42Voltswiringbus,steerbywire,brakebywire,collisionavoidance,autopilot,etc.arebeingcurrentlydeveloped,andautomobileswithsuchcapabilitieswillhitthemarketinthenearfuture.1.2.MechatronicseducationinUSandworldwideHowever,traditionalengineeringeducationofstudentscoversonlyminimalelectrical,electronics,andinformationtechnologyinstruction.ThehightechcomponentsofanonEEeducationaremuchbelowexpectations,inspiteofcleardemand.Becauseofthisdisparity,thenonEEengineeringgraduatesenteringthejobmarketareataconsiderablehandicap.Toacquirehightechskillsrequiredinthejobmarket,somemechanicalengineeringstudentstrytoregisterinupperdivisionEEcourses.However,lackingtheproperlowerdivisionbackground,thispracticeputsthematadisadvantage,andnegativelyaffectstheirGPAandcourseload.Inresponsetothissituation,aninterdisciplinaryengineeringbranch,thatspansmechanicalengineering,electronics,embeddedmicrocontrollers/digitalsignalprocessing,controls,andinformationtechnology,hasemergedunderthenameofMechatronics.Nationwide,effortstointroducemechatronicseducationinnonEEcurriculumhavesprunginovertwentyUSuniversities,andseveralworldwide2–7,10,11,13–16,18–20.1.3.TheneedformechatronicseducationinSouthCarolinaAttheUniversityofSouthCarolina,thenonEEengineeringstudentsalsohaveanacuteneedforeducationintheinterdisciplinaryfieldofmechatronics/microcontrollers.ThestateofSouthCarolinaisgoingthroughanintenseeconomicaldevelopmenteffortfocusedonhightechbusinessesandcompanies.ThiseffortisaimedatbridgingthetechnologicaldividethathasplacedSouthCarolinaamongthelastinthenationinahightecheconomy.Criticaltothisstatewideeffort,isthedevelopmentofanadequatecadreofwelltrainedpersonnelthatcanhitthegroundrunninginthegrowingtechnologyorientedjobmarket.Akintosimilareffortsgoingemergingengineeringeducationfield.DMEUSCestablishedacourseforteachingmicrocontrollerstomechanicalengineeringstudentsEMCH367,http//V.Giurgiutiuetal./Mechatronics1520051025–10361027www.me.sc.edu/courses/emch367.Thecourseconsistsoffourmajorcomponentsaclassroominstructionbhomeworkclaboratorydproject.Theclassroominstructionisfocusedoninstillinginstudentsthebasicknowledgerelatedtoprogrammingandusingthemicrocontroller.Partoftheclassroominstructionisperformedinacomputerlaboratory,wherethestudentsinteractwithsimulationsoftwareonaoneononebasis.ThehomeworkisfocusedonthestudentsC213understandingandretentionoftheconceptsinaselfteachingstyle,anditconsistsofexamplesthatstudentsfollowandexercisesthatthestudentsperformandreturntotheTeachingAssistantsviaemail.Thelaboratoryconsistsoffivesessionsthatgraduallytakethestudentsfromsimplemicrocontrollerprogrammingthroughtheusageofitsvariousfunctionssuchasparallelports,serialcommunication,eventtimingdetectionandgeneration,DCmotortachometer,steppermotorcontrol,andanalogtodigitalconversion.Thecapstoneofthecourseisaonemonthprojectinwhichthestudentsworkinpairstoachievethedevelopment,design,coding,construction,anddemonstrationofamicrocontrollerbaseprojectoftheirownchoice.Theprojectculminateswithawrittenreport,anoralpresentation,andahandsondemonstration.Pleaserefertothecoursewebsitehttp//www.me.sc.edu/courses/emch367forsamplesofpastprojects.TheengineeringstudentsattheUniversityofSouthCarolina,ofwhich22arewomenand30areminority,areinneedofsupporttoexpandandenhancethemechatronics/microcontrollereducation.TheprojectcurrentlyundertakenwithNSFsupportwillempowertheUniversityofSouthCarolinaengineeringstudentswiththeknowledgeandhandsonexperiencerequiredforsuccessintodayC213stechnologicallycompetitiveeconomyandmarketplace.2.Hardwareformechatronics/microcontrollereducationThehardwareissueisalsochallengingbecauseofthelargevarietyofmicrocontrolleroptionsavailableonthemarket.Ourobjectiveindevelopingthiscoursehasbeentofindamicrocontrollerthatiswidelyusedandacceptedintheindustry.Anothercriterioninourselectionwastochooseamicrocontrollerthathastheessentialfunctionsthatneedtobeconveyedtothestudents.Thethirdselectioncriterionwascost,i.e.,aninexpensivemicrocontroller.Therearemanymicrocontrollersavailoninotherplacese.g.,SouthernCalifornia,thiswillpermitthebuildingofacriticalmassoftalentthatlocalcompaniescandrawfrom1.1.4.Microcontroller/mechatronicseducationinthedepartmentofmechanicalengineeringattheUniversityofSouthCarolinaTheDepartmentofMechanicalEngineeringattheUniversityofSouthCarolinaDMEUSCiswellpositionedtoparticipateinpromotinganddevelopingthisableonthemarkettoday.However,noneisbetterthanthe68HC11microcontroller1028V.Giurgiutiuetal./Mechatronics1520051025–1036fortheclassroomatmosphere.ManyOTPmicrocontrollersmayofferabettersolutioninaparticularapplication,buttheircomputerarchitecturesandinstructionsetarenotsuitabletoageneraleducationalpurpose.The68HC11offersapowerfulandeasytomemorizeinstructionsetandhasbeenaroundformorethan10years.Onceyouhavebuiltyoursolidfoundationof68HC11microcontrollerexpertise,youcaneasilyapplyyour68HC11knowledgetotheHC12familyorothermicrocontrollersinthefuture.Plus,thereisalotofapplicationsoftwarethatcanbedownloadedfromtheweb.Therefore,thefinalchoicewasfortheMotorolaMC68HC11microcontroller.2.1.ThemicrocontrollerevaluationboardEVBForembeddedapplications,themicrocontrollerisusuallyusedinsinglechipmode.Inembeddedapplications,themicrocontrollercomeswiththeprogramalreadyburnedintoitsROMmemory.Theuseronlyhastoplacethemicrocontrollerinitsintendedlocation,topoweritupandinitiatetheprogram.Then,themicrocontrollerwillrunbyitself.ThestorageoftheprograminROMisdoneduringthefabricationprocess.Forcodedevelopmentapplications,themicrocontrollermustbeusedinconnectionwithahostcomputerPCand/oraterminal.Theprogrammercandeveloptheprogramonthehostcomputerandthentestitonthemicrocontroller.Alternatively,theprogrammercandeveloptheprogramdirectlyonthemicrocontrollerusingtheterminalinterface.TheelectroniccircuitryandICchipsassociatedwiththisprocessareplacedonanevaluationboardEVB.TheEVBcontainsexpandedmemorychips,aportreplacementunit,aswellasICchipsforservicingtheconnectiontothehostcomputerand/oraterminal.TheEVBisessentialforprogramdevelopment,sinceitallowsthesoftwareprogrammertodevelopandtestthemicrocontrollerapplicationsoftware.Oncethemicrocontrollerapplicationsoftwareisdevelopedandtested,thenitwillbeburnedintotheROMofthemassproductionmicrocontrollers.ByusingtheEVBexpandedsystemcontaininganMC68HC24andaPC,theusercandevelopsoftwareintendedforeithersinglechipmodeorexpandedmodemicrocontrollerapplications.Severalmicrocontrollerevaluationboardsarecommerciallyavailable.Theyrangefromthesimplesttothemostcomplex.Forourlab,wehaveselectedtwotypes,oneforcodedevelopmentEVBplus2microcontrollerevaluationboardfromhttp//www.evbplus.com/,theotherforembeddedapplicationsAdapt11C24DXmicrocontrollerevaluationboardfromTechnologicalArts,Inc.http//www.technologicalarts.com/myfiles/t1.htmlEVBU.2.1.1.EVBplus2microcontrollerevaluationboardTheEVBplus2microcontrollerevaluationboardfromhttp//www.evbplus.com/isamultifunctionalproductthatincorporatesseveralotherfeaturesbeyondthebasicEVBfunctionalityFig.1.Inadditiontothemicrocontroller,portreplacementunit,andexpandedmemory,ithasaseriesofothercomponents.TheseextracomponentsareprovidedforfacilitatingtheEVBuseforclassroominstruction,projectdevelopment,andproductdesign.AspresentedinFig.1,theEVBplus2containsaconve

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