Fault predictability detection method for discrete event system and fault predictor

A technology of discrete events and detection methods, applied in general control systems, control/regulation systems, instruments, etc., to achieve the effects of reduced space complexity, high stability, and high efficiency

Inactive Publication Date: 2019-05-07
GUANGDONG UNIV OF TECH
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Problems solved by technology

[0017] The object of the present invention is to provide the fault predictability detection method and fault predic

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  • Fault predictability detection method for discrete event system and fault predictor
  • Fault predictability detection method for discrete event system and fault predictor
  • Fault predictability detection method for discrete event system and fault predictor

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[0046] In order to make the purpose, features and advantages of the present invention more obvious and understandable, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the following The described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0047] see Figure 4 As shown, the embodiment of the present invention provides a fault predictability detection method for a discrete event system, which specifically includes the following steps.

[0048] Step S1, formally define the discrete event system as a quadruple system model G=(Q,∑,δ,q 0 ), where Q is the finite state space of...

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Abstract

The invention discloses a fault predictability detection method for a discrete event system and a fault predictor. A class 1 mark state and a class 2 mark state are used, and the system can be quicklyjudged to be unpredictable when the class 2 mark state exists in the system, so that the efficiency is higher. Model simplification is further proposed to finally obtain a simplified verifier automaton VG, so that the spatial complexity is reduced. Required observables are fewer, i.e. fewer sensing devices are needed when judging the system fault predictability and fault prediction, so that the stability of the fault predictability detection method and the fault prediction is higher. The verifier automaton VG finally obtained by the fault predictability detection method can also serve as a fault predictor to perform online prediction on the system fault.

Description

technical field [0001] The invention relates to the technical field of fault prediction of discrete event systems, in particular to a fault predictability detection method and a fault predictor of discrete event systems. Background technique [0002] With the widespread use of embedded computing devices and communication networks, the system integration of engineering systems is increasing and the functions are becoming more and more complex. Among them is a class of complex systems in which events start and stop at discrete moments with a certain degree of randomness. For example, the berthing of ships in the port, the start and stop of machine tools on the production line, the connection and disconnection of telephones, the progress and exit of a certain operation in the computer system, etc., such systems are called discrete event systems. Discrete event systems are a class of dynamic systems in which discrete events interact according to certain operating rules and lead...

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Application Information

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IPC IPC(8): G05B13/04
Inventor 赵锐刘富春
Owner GUANGDONG UNIV OF TECH
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