ServiceArchitectureofGridFaultsDiagnosisExpertSystemBased基于电网故障诊断专家系统的服务架构

《ServiceArchitectureofGridFaultsDiagnosisExpertSystemBased基于电网故障诊断专家系统的服务架构》由会员上传分享，免费在线阅读，更多相关内容在教育资源-天天文库。

1、ServiceArchitectureofGridFaultsDiagnosisExpertSystemBasedonWebServiceWangMingzan,Zhangziye?NortheasternUniversity,Shenyang,110004China?TheEighthInternationalConferenceonElectronicMeasurementandInstrumentsICEMI’2007OutlineIntroductionOGSA(OpenGridServicesArchitecture)OGSABasedonWebService

2、sGridServiceLayerBaseonOGSAApplicationGridNodesofFaultDiagnosisExpertSystemsDataTransferConclusionIntroductionWiththeadvanceofcomputertechnology,thescaleandcomplexityofmodernsystemisincreaseddramatically.Oncesomeaccidentstakeplace,itwillleadtotremendousloss.Theappearanceoffaultsdiagnosisa

3、ndfault-tolerantcontrollingtechnologyopensanewpathforadvancingthereliabilityofcomplexsystem.Thegridcomputingtechnologywasfirstlyusedinfaultsdiagnosisexpertsysteminthepaper.OGSA(OpenGridServicesArchitecture)OGSABasedonWebServicesGridServiceLayerBaseonOGSAOpenGridServicesArchitectureOGSABas

4、edonWebServicesUserFirstly,clientsendrequesttotheServlet(Webservicelayer)residentingonWebserverthroughbrowser.ServletisresponsibleforcallingcorrespondingEJB(EnterpriseJavaBeans)componentsonapplicationserver.Theactivatedcomponentaccessesthebackenddatalayerandprocessesthedata.OGSABasedonWeb

5、ServicesThenServletchoosestheappropriateJSPprogram(Webservicelayer)andtransferstheresult,JSPreturnstheresultintheformofHTMLtobrowser.ClientcanbetheJavaapplicationprocedure,CORBAcustomerortheservicepartner.TheyseparatelycommunicatewiththeEJBcomponentthroughthedifferentprotocol.OGSA(OpenGri

6、dServicesArchitecture)OGSABasedonWebServicesGridServiceLayerBaseonOGSAOpenGridServicesArchitectureGridServiceLayerBaseonOGSAThegridservicesincludeprocedureexecution,dataservice,andsoon.Withtheappearanceoftheseservices,OGSAwillturnintousefulService-OrientedArchitecture(SOA).GridServiceLaye

7、rBaseonOGSAThestrategyoftaskdividingwillaffectdirectlytheloadbalance,thecommunicationcomplexityandthedependenceofthetasks(1)Basedonthedeserializinganalysis,developthepublicserviceandtheparallelserviceinserver.Thisstepneedstodeployeveryparallelservicetoallnodesintheg