点焊机集散控制系统的研究与设计

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1、天津大学硕士学位论文点焊机集散控制系统的研究与设计姓名：丁钧申请学位级别：硕士专业：电磁场与微波技术指导教师：金杰20070101ABSTRACTResistencespot-weldingisextensivelyusedinthefieldsofautomobile，aviation，spaceflightmanufacturingenginneringandelectricapplianceindustry．Resistancesopt-weldingprocessandqualitycontrolarealwaysoneo

2、ftheimportantresearchsubjectsinweldingfield．Withthedevelopmentofcomputertechnology,it’SatrendthatcomputertechnologyhasawideapplicationinthefieldofResistencespot-welding．InthisthesisweintroducedDistributeControlSystem(DCS)intothespot-weldercontrolsystemanddidresearchon

3、therealizationofspotwelderDistributeControlSystem．AspotwelderMCUcontrollerwasdiscussedinthethesisfirstly．Thecontrollerismadeupofthreeunitmodules：mainboardcontrolsystem；user-machineinterfacewhichisaindependentMCUcontrolsystem；controlexecutingsystem．WefocusedDnthecontro

4、lsystemoftheuser-machineinterface，designedandrelizedthehardwarecircuitandsoftwareoftheinterfacesystem．IntegrationoftechnologyDCS，wehadanalyzedthesystemofspot-weldingDCScontrolsystem．Thecommunicationhardwareandsoftwarewereprovidedinthethesis．Inthesectionofhardwarecircu

5、itdesign，thepapercarriedoutthealternateforsignalelectrifyinglevelbetweencomputerandmicrochipcontroller,atthesalnetime，lengthenthedistancefortransmittingdatabyexpangingRS-232toRS一485systembus．Regardingtothecommunicationsoftwaredesign，wehaddesignedthesoftwaresolutionofv

6、alidatingthecommunicationbetweentheupcomputeranddowncomputer．WeusedthecontrolActiveXMSCommtodesigntheupcomputerprograms，usedC51languageandplusWAVEemulatortodevelopthedowncomputercommunicationprograms．Inthelastsectionofthethesis，wehadanalyzedthereliabilityofDCSanddidso

7、meresearchonantiinterferenceofRS-485bus，it'snecessarytodotheseworkbecausetheit'susefulforUStoimprovethespotwelderDCS．KEYWORDS：Spotwelder,DCS，RS-485criterion，MSCommActiveX独创性声明本人声明所呈交的学位论文是本人在导师指导下进行的研究工作和取得的研究成果，除了文中特别加以标注和致谢之处外，论文中不包含其他人已经发表或撰写过的研究成果，也不包含为获得．墨盗盘堂或其他教

8、育机构的学位或证书而使用过的材料。与我一同工作的同志对本研究所做的任何贡献均已在论文中作了明确的说明并表示了谢意。学位论文作者答名：丁鞠签字嗍幽司年1月3D日学位论文版权使用授权书本学位论文作者完全了解苤鲞基鲎有关保留、使用学位论文的规定。特授权苤