{"title":"Detecting faults in information poor systems using neurofuzzy models","authors":"N. Maruyama, A. Dexter","doi":"10.1109/KES.1998.725905","DOIUrl":null,"url":null,"abstract":"Considers the problem of detecting faults in information poor systems where an accurate mathematical model is difficult to produce, the data available for training a black-box model are incomplete, and measurements are sparse and of poor quality. The problem of detecting faults in the cooling coil of an air-conditioning system is used as an illustrative example. Results are presented which demonstrate the advantages of using a neurofuzzy model-based detection scheme with a variable threshold. The performance is compared to that of an ideal model-based fault detector and that of detectors with fixed thresholds. The sensitivity of the diagnosis to the type and magnitude of the fault is also examined. Experimental data collected from a full-scale air-conditioning system are used to design and test a fault detector.","PeriodicalId":394492,"journal":{"name":"1998 Second International Conference. Knowledge-Based Intelligent Electronic Systems. Proceedings KES'98 (Cat. No.98EX111)","volume":"52 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"1998-04-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"1998 Second International Conference. Knowledge-Based Intelligent Electronic Systems. Proceedings KES'98 (Cat. No.98EX111)","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/KES.1998.725905","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 0
Abstract
Considers the problem of detecting faults in information poor systems where an accurate mathematical model is difficult to produce, the data available for training a black-box model are incomplete, and measurements are sparse and of poor quality. The problem of detecting faults in the cooling coil of an air-conditioning system is used as an illustrative example. Results are presented which demonstrate the advantages of using a neurofuzzy model-based detection scheme with a variable threshold. The performance is compared to that of an ideal model-based fault detector and that of detectors with fixed thresholds. The sensitivity of the diagnosis to the type and magnitude of the fault is also examined. Experimental data collected from a full-scale air-conditioning system are used to design and test a fault detector.