Diagnose komplexer Systeme am Beispiel eines Tank-Ballast-Systems

Abstract

We consider the problem of diagnosis in complex systems with the example of tank ballast systems. It is shown that known approaches for diagnosis either restricting to quantitative or qualitative methods are not suitable. Therefore, we introduce a new approach combining quantitative and qualitative aspects. It does not renounce to complete information available in quantitative measurements as it is inevitably the case for qualitative methods that only use a classification of the measurements. Decisions for the diagnosis process however are made with the help of qualitative comparisons. Therefore, the approach is robust against noise. Finally, the performance of this new approach is demonstrated by many random tests.