Failure diagnosis and recovery based on DES framework

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As many industrial systems become more complex, it becomes extremely difficult to diagnose the cause of failures. This paper presents a new failure diagnosis approach based on discrete-event systems (DES) framework. In particular, the approach is a hybrid of event-based and state-based ones leading to a simpler failure diagnoser with supervisory control capability. In our approach, we include the failure recovery events for failures in the system model in order to derive a diagnoser we refer to as a recoverable diagnoser. Further, in order to reduce the state size of the recoverable diagnoser, a procedure to construct a high- level diagnoser is presented. The design procedure for diagnoser is presented along with a pump-valve system as a illustrative example.
Publisher
Springer
Issue Date
2007
Language
English
Article Type
Article
Citation

JOURNAL OF INTELLIGENT MANUFACTURING, v.18, no.2, pp.249 - 260

ISSN
0956-5515
DOI
10.1007/s10845-007-0018-8
URI
http://hdl.handle.net/10203/87948
Appears in Collection
RIMS Journal Papers
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