Intrusion Detection in Controlled Discrete Event Systems

作者: David Thorsley , Demosthenis Teneketzis

DOI: 10.1109/CDC.2006.377810

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摘要: The constituent controllers in a supervisory control system may sometimes fail as a result of an intruder interfering with the feedback performance of the system. The intrusion may allow the system to execute traces that the supervisor wishes to prevent from occurring. We derive conditions under which a supervisor can detect the presence of an intruder in time to prevent the execution of an illegal trace. In situations where it is not possible to block all illegal strings, we use a language measure method to assess the damage caused by a particular …

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