Improvement of a fault diagnosis algorithm using a signed digraph with considering stuck faults in sensors

Shigeyuki Tateno, Hisayoshi Matsuyama, Yoshifumi Tsuge

Research output: Contribution to journalArticle

Abstract

A diagnosis system to search multiple origins of failures using a signed digraph has been developed. Under the situation in which measured values of sensors are stuck normal values, the system cannot find multiple origins of failures properly and often makes erroneous or impossible diagnosis. In order to overcome this problem, an improved algorithm which can search the candidates of multiple origins and also the sensors with stuck faults is proposed. The usefulness of this proposed algorithm is demonstrated by its application to tank-pipeline systems.

Original languageEnglish
Pages (from-to)34-42
Number of pages9
JournalJournal of Chemical Engineering of Japan
Volume39
Issue number1
DOIs
Publication statusPublished - 2006 Jan 20

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Failure analysis
Sensors
Pipelines

Keywords

  • Fault diagnosis
  • Graph theory
  • Multiple origins of failures
  • Signed digraph
  • Stuckf fault

ASJC Scopus subject areas

  • Chemical Engineering(all)

Cite this

Improvement of a fault diagnosis algorithm using a signed digraph with considering stuck faults in sensors. / Tateno, Shigeyuki; Matsuyama, Hisayoshi; Tsuge, Yoshifumi.

In: Journal of Chemical Engineering of Japan, Vol. 39, No. 1, 20.01.2006, p. 34-42.

Research output: Contribution to journalArticle

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