Fault diagnosis and prognosis in discrete event systems using statistical model and neural networks Online publication date: Mon, 08-Oct-2018
by M. Msaaf; F. Belmajdoub
International Journal of Mechatronics and Automation (IJMA), Vol. 6, No. 4, 2018
Abstract: This paper deals with fault diagnosis and fault prognosis in discrete event systems described by sequences of events. We are interested in large industrial systems where the modelling with tools usually used for discrete event system (automata, Petri net…) is a complex task. The description of DES is made with a statistical model composed of events recorded from the considered DES and regrouped in the form of temporal windows. In the first phase, the theoretical framework is developed to perform diagnosis and prognosis using statistical model and temporal window concept. The second phase uses the result of the first phase to train radial basic function neural networks that preform online diagnosis and online prognosis. A case study and several examples serving to illuminate the developed approach are given.
Online publication date: Mon, 08-Oct-2018
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