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An improved decentralized model for sensor fault detection and isolation demonstrated on an airplane system ×÷Õß:Wang, JC (Wang, Jianchen)[ 1 ] ; Qi, XH (Qi, Xiaohui)[ 1 ] PROCEEDINGS OF THE INSTITUTION OF MECHANICAL ENGINEERS PART G-JOURNAL OF AEROSPACE ENGINEERING ¾í: 229 ÆÚ: 3 Ò³: 423-434 DOI: 10.1177/0954410014534202 ³ö°æÄê: MAR 2015 ²é¿´ÆÚ¿¯ÐÅÏ¢ PROCEEDINGS OF THE INSTITUTION OF MECHANICAL ENGINEERS PART G-JOURNAL OF AEROSPACE ENGINEERING ³ö°æÉÌ SAGE PUBLICATIONS LTD, 1 OLIVERS YARD, 55 CITY ROAD, LONDON EC1Y 1SP, ENGLAND ISSN: 0954-4100 eISSN: 2041-3025 Ñо¿ÁìÓò Engineering ÕªÒª With various modeling technologies applied, the sensor fault detection and isolation scheme based on the decentralized model (also referred to as dedicated observer scheme) becomes a popular approach for sophisticated systems. However, the commonly used modeling approach in many literatures that directly takes measurement values as model inputs may result in residual crosstalks and even false alarms. In this paper, the traditional decentralized model scheme is analyzed and a novel scheme based on the time window interactive prediction structure is proposed. Then, the Elman neural network is applied to model identification due to its nonlinear approximation and online learning properties. Finally, Simulations for comparison using the decoupled longitudinal motion model of some airplane are performed, and the results show that the proposed scheme has higher detection speed, lower false alarm rate and less undetected faults. ¹Ø¼ü´Ê ×÷Õ߹ؼü´Ê:Sensor fault detection and isolation; decentralized model; residual crosstalk; time window interactive prediction; Elman neural network; airplane system KeyWords Plus:NEURAL-NETWORKS; DIAGNOSIS; OBSERVER; SCHEMES; UAV ×÷ÕßÐÅÏ¢ ͨѶ×÷ÕßµØÖ·: Wang, JC (ͨѶ×÷Õß) Shijiazhuang Mech Engn Coll, Dept Vehicular Engn, 97 Hepingxi Rd, Shijiazhuang 050003, Peoples R China. µØÖ·: [ 1 ] Shijiazhuang Mech Engn Coll, Dept Vehicular Engn, Shijiazhuang 050003, Peoples R China µç×ÓÓʼþµØÖ·:lichen197@163.com ³ö°æÉÌ SAGE PUBLICATIONS LTD, 1 OLIVERS YARD, 55 CITY ROAD, LONDON EC1Y 1SP, ENGLAND Àà±ð / ·ÖÀà Ñо¿·½Ïò:Engineering Web of Science Àà±ð:Engineering, Aerospace; Engineering, Mechanical ÎÄÏ×ÐÅÏ¢ ÎÄÏ×ÀàÐÍ:Article ÓïÖÖ:English Èë²ØºÅ: WOS:000350116100003 ISSN: 0954-4100 eISSN: 2041-3025 ÆäËûÐÅÏ¢ IDS ºÅ: CC1QI Web of Science ºËÐĺϼ¯ÖÐµÄ "ÒýÓõIJο¼ÎÄÏ×": 24 Web of Science ºËÐĺϼ¯ÖÐµÄ "±»ÒýƵ´Î": 0 JCR® Àà±ð JCR ·ÖÇø ENGINEERING, AEROSPACE Q3 ENGINEERING, MECHANICAL Q4 Êý¾ÝÀ´×ÔµÚ 2013 °æ Journal Citation Reports® |
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