Information Processing Strategies and Multiple Model Fault Detection

M. Šimandl and P. Herejt (Czech Republic)


Fault detection, multiple model, information processing.


The paper deals with the information processing strategies and considers their influence to fault detection performance index. Three basic control strategies Open-loop, Open-loop feedback and Closed-loop are used for information pro cessing for the purpose of fault detection. It is proved that the well-known and most often used Bayesian approach equals to Open-loop feedback strategy. Further it is showed that the application of Closed-loop strategy significantly improves the fault detection. All three strategies are illus trated in numerical examples.

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