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软交换与GSM网中七号信令系统互通的设计方案
PLAUniversityofScienceandTechnology，Nanjing210007，China)Abstract：Thedesignschemeofengineeringmechine’Sfaultdiagnosissystemiselaboratedinthispaper．ThesystemincludesfaultdiagnosisapparatuasedonchipmicrocomputerMSP430，theRS-232serialportcommunicationsystembetweenMSP430singlechipandcomputerwhichisdesignedwithSPCommwidget,[link widoczny dla zalogowanych]，andfaultdiagnosissoftwaresystembasedonDelphi7．0．Itpresentsadetailedimplementationmethodoffaultdi-agnosissystem，anditalsogivestheprincipleandprogramflameofeverymodule．Thisschemesettlestheproblemoffaultdiagnosisof84Atypemechanisebridge．Itshowsthatitsfunctioniscredibleanditseffectisgood．Keywords：engineeringmachine；faultdiagnosissystem；MSP430；SPCommwidget0蛙蠖蠖：蛙鬟≥瑾囊,[link widoczny dla zalogowanych]；蠓毒甚星《,[link widoczny dla zalogowanych]；；蠖戎堂；蛙i鸯；蛙’鲨燮：誊堂；：嚣蛙蒜鉴武(上接第2J页)SchemeofInterworkingSoftswitchwithNo．7SignalingSysteminGNetworkFANGJingjing(JiangsuPostsandTelecommunicationsPlanningandDesigningInstituteCoLtd，Nanjing210006，China)Abstract：TheNo．7signalingandsofiswitchingnetworkbasedonIParefirstlydescribedinthispaper，atthesametime，severaladaptationprotocolsareputforward．Thentheearlierschemeofintroducingsoftswitch-ingequipmentaslocalMSCinGnetworkispresented,[link widoczny dla zalogowanych]，whichadoptsM3UAprotocol，withSG’Sworkingasthewayofsignalingtransferpoint．BecauseoftheshortcomingofM3UAinreelectingroutingmechanism，thethreedetailedwaysofreelectingroutingareanalysed，andthethirdoneisconsideredasapriorwayintheearlierperiod．Atlast，thefutureoflarge-scalenetworkwhichiasedonIPtechnologyispredicted．Keywords：No．7signal,[link widoczny dla zalogowanych]；IP；signalinginterworking；softswitch·73·
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