1、沈陽理工大學(xué)碩士學(xué)位論文基于虛擬儀器的遠(yuǎn)程故障診斷關(guān)鍵技術(shù)研究姓名：吳峰申請(qǐng)學(xué)位級(jí)別：碩士專業(yè)：檢測技術(shù)與自動(dòng)化裝置指導(dǎo)教師：楊青201103沈陽理工大學(xué)碩士學(xué)位論文AbstractInthisthesisdemonstrationplatfmfanalogcircuitremotefaultdiagnosissystembasedonBrowserServermodelisbuiltwiththeapplicationofvirtua

2、linstrumentwkfaultdiagnosistechnology.TheplatfmisauserloginmoduledataacquisitionmoduledatastagemoduletimefrequencydomainwavefmdisplaymoduleProbabilisticNeuralwk(PNN)faultdiagnosismodulesothatthewholeplatfmhasgoodversatil

3、ityscalability.Statisticsdatashowthatmostoftheelectronicequipmentfailureiscausedbyanalogcircuitfault.Soanalogcircuitdiagnosistheymethodsarebecomingverypopularalsochallenging.Howevertheapproachesarelimitedtodealwithfaultd

4、iagnosisbecauseofthevarietycomplexityoftheanalogcircuitsespeciallythelargescaleanalogcircuitswiththetolerancethesoftfault.itbringsupnewchallengetofaultdiagnosisoftheanalogcircuitsrequiresthenewtheyapproachesffaultdiagnos

5、isoftheanalogcircuits.ArtificalNeuralwk(ANN)havegainedquickdevelopmentwidelyappliedinmanyareas.Inthisthesis，itisprincipallystudiedapplyingPNNtoanalogcircuitfaultdiagnosis.Computerwktechnologyontheotherhisgreatlydeveloped

6、.Remotewktestingfaultdiagnosistechnologybecomeanewresearchprojectsdirection.ThisPaperfocusontheissueoffaultdiagnosistechnology，theapplicationofprobabilisticneuralwksinremoteanalogcircuitisstudiedpositively.Thethesisconce

7、ntratesonmainwksasfollows：Onthebasisofanalyzingthebasicprinciple，reasoningmethodsfunctionpeculiaritiesofsomepopularfaultdiagnosistechnologies，theirapplicationsinanalogcircuitfaultdiagnosisfield；Onfaultfeatureextractionme