基于单片机的视觉系统外文翻译.doc

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1、原文Title：VISIONSYSTEMBASEDONASINGLE-CHIPMICROCOMPUTERVisionsensorswhichusedynamicRAMarecheaperandeasiertointerfacethantheiralternatives--videconorCCD.AndrewRusselldescribesaDRAM-based'intelligent'visionsysteminwhichallinterfacingandimageprocessingfunctionsareprovidedbyan8751single-chipmicroc

2、omputerThepaperdescribesacompactandinexpensivebinaryvisionsysteminwhichallinterfacinganddataprocessingfunctionsareperformedbyanIntel8751single-chipmicrocomputer.Thevisionsensorisa64kbitdynamicRAMchipwhichiscapableofprovidingapictureresolutionofupto256X128pixels.Pictureprocessingalgorithmsar

3、eimplementedwithinthevisionsystemandobjectstatisticsaretransferredtothehostcomputeroveraserialinterface.Theresultingsystemisimplementedusingonlyfourintegratedcircuitsandiseminentlysuitableforcomponentidentificationandinspectioninaflexiblemanufacturingsystemenvironment.Microsystemscomputervi

4、sionDRAMopticalsensors8751Computervisionsystemsarebeingusedinincreasingnumbersforavarietyofindustrialinspection,partidentificationandcontroltasks.Dynamicrandom-accessmemory(DRAM)circuitshavebeendevelopedasbinaryopticalsensorsfortheseapplications1'2.DRAM-basedvisionsystemsareverylowincostand

5、havedirectcompatibilitywithdigitalelectronics.Theseadvantagesarenotsharedbythealternativetypesofsystemavailable-'videcon'orCCD(chargecoupleddevice)visionsensors--whicharerelativelyexpensive,wereoriginallydesignedforcompatibilitywithtelevisiondisplaysandthereforedonotprovideanoutputwhichcanb

6、ereadilyaccessedbyacomputer.FormanyinspectionandidentificationtasksthehigherresolutionofvideconorCCDsensorsisnotrequired,andinsuchapplicationsaDRAM-basedsystemcanbeamorecosteffectivesolution.Thispaperdescribesan'intelligent'visionsensorinwhichallinterfacingandimageprocessingfunctionsareperf

7、ormedbyanIntel8751single-chipmicrocomputer.The8751containsacomplete8-bitmicroprocessoraswellasEPROM,RAM,twotimers,afullduplexI/OportandparallelI/Olinesg.Theseresourceswithinthe8751areusedto:•directlycontroltheDRAMopticalsensor,anIS32OpticRAMmanufacturedb