Test signal generation for service diagnosis based on local structural properties

• Autorzy: Michael Ungermann , Jan Lunze , Dieter Schwarzmann
• Języki publikacji: EN

Abstrakty

EN

The paper presents a new approach to the generation of test signals used in service diagnosis. The tests make it possible to isolate faults, which are isolable only if the system is brought into specific operating points. The basis for the test signal selection is a structure graph that represents the couplings among the external and internal signals of the system and the fault signals. Graph-theoretic methods are used to identify edges that disappear under certain operating conditions and prevent a fault from changing the system behavior at this operating point. These operating conditions are identified by validuals, which are indicators obtained during the graph-theoretic analysis. The test generation method is illustrated by a process engineering example.

Słowa kluczowe

EN

structural analysis; service diagnosis; active diagnosis; test generation

• Wydawca: University of Zielona Gora Press
• Czasopismo: International Journal of Applied Mathematics and Computer Science
• Rocznik: 2012
• Tom: 22
• Numer: 1
• Strony: 55-65

Daty

wydano

2012

otrzymano

2011-01-17

poprawiono

2011-07-06

Twórcy

autor

Michael Ungermann

• Robert Bosch GmbH, Postfach 30 02 40, 70442 Stuttgart, Germany
• Institute of Automation and Computer Control, Ruhr-Universität Bochum, Universitätsstrasse 150, 44780 Bochum, Germany

autor

Jan Lunze

• Institute of Automation and Computer Control, Ruhr-Universität Bochum, Universitätsstrasse 150, 44780 Bochum, Germany

autor

Dieter Schwarzmann

• Robert Bosch GmbH, Postfach 30 02 40, 70442 Stuttgart, Germany

Bibliografia

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Identyfikatory

DOI

10.2478/v10006-012-0004-y