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Model-based fault tolerant control reconfiguration for discrete event systems

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2 Author(s)
Provan, G. ; Sci. Center, Rockwell Int. Corp., Thousand Oaks, CA, USA ; Yi-Liang Chen

We describe a novel fault-tolerant approach for discrete-event systems by integrating sensor fusion within a diagnosis and control reconfiguration mechanism. This approach can automatically compute fault-tolerant control/reconfiguration actions which maintain pre-specified control objectives. Our underlying framework is based on model-based diagnostic representations and algorithms, and integrates diagnostics and control reconfiguration for discrete event systems using a single modeling mechanism and suite of algorithms. Given failures in the system, we describe a modeling approach that facilitates diagnostic isolation while performing sensor fusion to minimize false alarms, thereby increasing tolerance to sensor faults as well as (non-measurable) component faults. We show how we can explicitly trade off the false alarm rate with other system constraints

Published in:

Control Applications, 2000. Proceedings of the 2000 IEEE International Conference on

Date of Conference:

2000