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Large-scale fault diagnosis for on-board train systems

  • B. D. Netten
  • R. A. Vingerhoeds
Application Sessions
Part of the Lecture Notes in Computer Science book series (LNCS, volume 1010)

Abstract

A new approach is developed for fault diagnosis during different stages of development and operation of large train systems, incorporating case-based reasoning, conditional probabilities and indexing networks. Due to the size and complexity, the explicit, complete and accurate modelling of the on-board train systems is regarded impossible. The knowledge is implicitly available in fault-cases with possible symptoms, test results and actions. Off-line, different diagnostic systems are automatically maintained and (re)generated. Knowledge and experience of manufacturers and railway companies are fed back into all systems, but only after validation by authorised personnel. On-line, the system responses are consistent and fast enough, despite the size and uncertainty in the fault-cases. Available case-based reasoning tools have serious limitations in permissible size of the problem, handling probability factors, meeting required response times and satisfying the real-time requirements. The novelty of the proposed approach is that fault-networks, rather than fault-trees, are built automatically as the indexing structure of the case-base for on-line use.

Keywords

case-based reasoning fault diagnosis network probabilities real-time 

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Copyright information

© Springer-Verlag Berlin Heidelberg 1995

Authors and Affiliations

  • B. D. Netten
    • 1
  • R. A. Vingerhoeds
    • 1
    • 2
  1. 1.Faculty of Technical Mathematics and Informatics, Knowledge Based Systems GroupDelft University of TechnologyBL DelftThe Netherlands
  2. 2.Department of Electrical and Electronic EngineeringUniversity of Wales SwanseaSwanseaUK

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