Monitoring behavioral evolution for on-line fault detection

L. E. Holloway, B. H. Krogh

Research output: Contribution to journalConference articlepeer-review

1 Scopus citations


The evolution graph monitor is defined and illustrated for on-line monitoring of computer-controlled processes with both discrete and continuous dynamics. Using a behavioral model specification of the process dynamics, the evolution graph monitor builds and maintain an efficient representation of the set of admissible system trajectories which are consistent with the on-line observations as they are received. In contrast to simulation-based methods, the evolution graph approach handles delayed, uncertain, and infrequent observations for systems with widely varying operating characteristics. A behavioral model specification and evolution graph monitor have been developed to perform on-line fault detection for an electric arc furnace in a continuous-caster steel mill. This application is used throughout the paper to illustrate the details of the approach.

Original languageEnglish
Pages (from-to)313-319
Number of pages7
JournalIFAC Symposia Series
Issue number6
StatePublished - 1992
EventIFAC/IMACS Symposium on Fault Detection, Supervision and Safety for Technical Processes - SAFEPROCESS'91 - Baden-Baden, Ger
Duration: Sep 10 1991Sep 13 1991

ASJC Scopus subject areas

  • General Engineering


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