Time templates for discrete event fault monitoring in manufacturing systems

Lawrence E. Holloway, Sujeet Chand

Research output: Contribution to journalConference articlepeer-review

44 Scopus citations


The input and output signals of automated manufacturing systems can be characterized as observed time functions of discrete events. Fault monitoring is the online analysis of the process observations to determine if they correspond to a specification of correct process operation. In this paper, we describe a new fault monitoring method, called template monitoring. Template monitoring overcomes several limitations associated with methods based on traditional discrete event process models. The template monitoring method is easily distributable, and is suitable for monitoring concurrent event relationships. We derive analytical results for generating templates from timed automaton models and describe the use of templates for real-time monitoring and diagnostics.

Original languageEnglish
Pages (from-to)701-706
Number of pages6
JournalProceedings of the American Control Conference
StatePublished - 1994
EventProceedings of the 1994 American Control Conference. Part 1 (of 3) - Baltimore, MD, USA
Duration: Jun 29 1994Jul 1 1994

ASJC Scopus subject areas

  • Electrical and Electronic Engineering


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