A new algorithm for testing diagnosability of fuzzy discrete event systems |
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| Authors: | Minnan Luo Yongming Li Fuchun Sun Huaping Liu |
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| Affiliation: | 1. State Key Laboratory on Intelligent Technology and Systems, Department of Computer Science and Technology, Tsinghua University, Beijing 100084, P.R. China;2. College of Computer Science, Shaanxi Normal University, Xi’an 710062, P.R. China;1. Harbin Institute of Technology, Shenzhen Graduate School, China;2. Inria, Domaine de Voluceau – Rocquencourt, BP 105 - 78153 Le Chesnay Cedex, France;1. College of Computer Science, Shaanxi Normal University, Xi''an 710062, China;2. Institute of Software, School of Electronics Engineering and Computer Science, Peking University, Beijing 100871, China;3. Key Laboratory of High Confidence Software Technologies (Peking University), Ministry of Education, China |
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| Abstract: | Failure diagnosis and detection of fuzzy discrete event systems play a significant role in the study of complex systems. In this paper, we investigate the diagnosability of fuzzy discrete event systems by proposing a new algorithm based on the concept of undistinguishable strings. Moreover, a necessary and sufficient condition for fuzzy diagnosability is obtained in terms of certain properties of the diagnoser, which is constructed with respect to the minimal observable event. The computing process to check the diagnosability of fuzzy DESs and some examples serving to illuminate the applications are developed and described. |
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