基于AutoCAD實時協(xié)同設計平臺的研究.pdf

1、西南交通大學碩士學位論文基于AutoCAD實時協(xié)同設計平臺的研究姓名：毛勇申請學位級別：碩士專業(yè)：機械設計及理論指導教師：陳天星201105西南交通大學碩士研究生學位論文第fI頁曩罾—量獸量量笪皇量量曼堂皇葛舅量■曼iliiilI曼曼曼曼量量曼皇舅曼鼉量舅舅鼉量量量曼置曼曼曼曼皇皇量邑目曼皇量鼉曹置曼皇曼置量量曼曼皇魯量曼寰’AbstractComputerSupportedCollaborativeDesign(CSCD)isapra

2、cticalapplicationthatcomputersupportedcooperativework(cscw)technologyisappliedintheCADfield。ThefastdevelopmentoftheinformationandcomputersciencetechnologyandglobalizationofthemanufactureindustryhasmadethecollaborativeCAD

3、basedonintemetplatformbecomesanewlydevelopingtechnologyItisanewtypeofdesignmodelthatcanbeusedbycompanies，whicharedistributedindifferentareaswithdifferentedges，butitsharesacommonideologyoftheconcurrentandcollaborativedesi

4、gninanewproductdevelopingprocessThisnewmethodscanbeSOwidelyusedindifferentcompaniesthatevenitmakesanewfocusofresearchinthisareaReal—timecollaborativedesignisoneofmanykeyissueswhichaffectsthedevelopmentofCADbasedoninterne

5、tplatformtechnologyThenetworkbandwidthandextremehighRealtimerequirementshaslimitedthewideapplicationofthecomputersupportedcooperativework(cscw)technologyinCADfields，nlispapercombinesthedistributedstructureandcentraldistr

6、ibutedstructuretogethertobuildupaRealtimedesignplatformwithagraphicdatabasebasedonintemetplatforminside，andextendstheinteractfunctionofAutoCADsoftwareIthassolvedtheproblemconcerningconsistencyanduniquenessofanObjectdata，

7、andmadecompaniesshareobjectdataandhumanresourceDuringtheinteractionprocess，theobjectdataaredynamicallystoredwhichgreatlyreducestheamountofdatatransmittedthroughtheinternet，andmeettherealtimerequirementsfortheprototypepla

8、tformoftheComputerSupportedCollaborativeDesignThemajorcontributionsofthispaperarelistedasfollow：1Analyzethesystemmodel，workingpattemandclassificationofthecollaborativedesignsystem，andemploysNSCDmodelandworkingpattem2Exte

9、ndAutoCADfunctions，andallowittosharedataoninteractplatformduringcollaborativedesignprocess3Tointroduceanewmechanismtomanagemembersandmembers’privilegesByusingprivilegegrantedmechanism，onemembercandesignwhileothermembersc

10、anwatchthedesignprocessatonetimeW／henanothermemberrequestsadesignprivilege，afterformermembergivesuphisdesignprivilegetothehostorformermembersprivilegeisrevokedbythehost，andhostregrantsthedesignprivilegetothatmemberthenth

11、erequestedmemberCanhavethedesignprivilege，thismechanismsolvetheconcurrentproblemwhenmembersareusingormodifyingthegraphicdata，andhelpstoimprovetheinformationsecurityoftheplatformKeywords：Realtimecollaborativedesign；Object