最新基于增强现实ar装配系统研究课件PPT.ppt

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1、基于增强现实ar装配系统研究Abstractprovideaconciseoverviewofthetechnicalfeatures,characteristicsandbroadrangeofapplicationsofARbasedassemblysystemspublishedbetween1990and2015.Introduction1.traditionalcomputer-aidedassemblytechnology：requirtoidentifyconstraintinformationbetweenthematingpart

2、s；difficulttoforeseetheimpactofindividualmatingspecificationsonotheraspectsoftheassemblyprocess；lacksdirectinteractionbetweenusersandthecomponents.2.VRassemblysystem：lackingofrealisticexperience，decreasingthefidelityandcredibility；noteasytofullyandaccuratelymodelthereal-timea

3、ndactualworkingenvironments.3.ARassemblysystem：doesnotneedtheentirerealworldtobemodeled；enhancestheinteractionbetweenthesystemsandtheusers，manipulatetheobjectsnaturally.SixfunctionalmodulesofARassemblysystemContext-awarenessandauthoringARassemblysystemkeepstrackofthestatusofuse

4、rsinreal-time,automaticallyrecognizingmanualerrorsandcompletionateachassemblystepanddisplayingmultimediainstructionscorrespondingtotherecognizedstates.ARassemblyauthoringsystemshavebeenenabledtocopewithmanualassemblyoperationsefficiently;Disadvantage：time-consumingtobuild‘‘adhoc

5、’’systems.needmanualinput.Target:tobemoretask-adaptive,suiteforawiderangeofdifferenttasks.considertheimplementationissuesofsensors.becomesmartenoughtounderstandauser’sintentandgeneratetimelycontext-awareguidanceduringassemblyoperationswithoutmanualinput.EvaluationofARassemblygui

6、dance1.Effectivenessevaluation:concernsthecapabilityofthesystemtoproduceadesiredresultforacertaintaskoractivity.2.Usabilityevaluation:involvesinvestigatingtheeaseofuseandlearnabilityoftheARassemblysystembasedonneedsanalysis,userinterviewsandexpertevaluations.Disadvantage：differe

7、ntfactorsthatinfluencetheeffectivenessandusabilityofanARassemblysystemarestillobscure.suchasvariousinteractionmethods.designedonlyforaspecific‘‘adhoc’’assemblytask.Trend：evaluatingnovelARinterfaces,especiallyhowtheseinterfacescanimprovehumanresourcecapabilitiesandtheattendanthum

8、anfactors.ARassemblytrainingResearchinthisareah