An ensemble approach to estimate the fault-time instant
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Estadístiques de LA Referencia / Recolecta
Inclou dades d'ús des de 2022
Cita com:
hdl:2117/20475
Tipus de documentText en actes de congrés
Data publicació2013
Condicions d'accésAccés obert
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continguts d'aquesta obra estan subjectes a la llicència de Creative Commons
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Reconeixement-NoComercial-SenseObraDerivada 3.0 Espanya
Abstract
Since systems are prone to faults, fault detection and isolation are essential activities to be considered in safety-critical applications. In this direction, the availability of a sound estimate of the time instant the fault occurred is a precious information that a diagnosis system can fruitfully exploit, e.g., to identify information consistent with the faulty state. Unfortunately,any fault-detection system introduces a structural delay that,typically, increases in correspondence of subtle faults (e.g., those characterized by a small magnitude) with a consequence that the fault-occurrence time is overestimated.
In this paper we propose an ensemble approach to estimate the time instant a fault occurred. We focus on systems that can be described as ARMA models and faults inducing an abrupt change in the model coefficients.
CitacióAlippi, C. [et al.]. An ensemble approach to estimate the fault-time instant. A: International Conference on Intelligent Control and Information Processing. "013 Fourth International Conference on Intelligent Control and Information Processing (ICICIP 2013). Proceedings". Piscataway: 2013, p. 836-841.
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2013_06_Ensemble_of_CPM_ICICIP2013.pdf | 552,6Kb | Visualitza/Obre |