Reversed fuzzy Petri nets and their application for fault diagnosis

  • Authors:

  • Hesuan Hu;Zhiwu Li;Abdulrahman Al-Ahmari

  • Affiliations:

  • School of Electro-Mechanical Engineering, Xidian University, Xi'an, Shaanxi 710071, PR China and Industrial Engineering Department, College of Engineering, King Saud University, Riyadh 11421, Saud ...;School of Electro-Mechanical Engineering, Xidian University, Xi'an, Shaanxi 710071, PR China;Industrial Engineering Department, College of Engineering, King Saud University, Riyadh 11421, Saudi Arabia

  • Venue:
  • Computers and Industrial Engineering
  • Year:
  • 2011

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Abstract

An alterative approach to the backward reasoning is presented. In classical reasoning, both users and developers of many expert systems are dedicated to the forward reasoning. However, in many newly arising expert systems such as various diagnosis systems, the backward reasoning is of special interest and often preferable. In this paper, the fuzzy Petri nets are used to analytically represent the knowledge of fault diagnosis in manufacturing systems and an iterative algorithm based on max-algebra is used to deduce the consequence-antecedent relationship between their manifestation and antecedent. Finally, the legitimacy and efficiency of the proposed approach are proved and validated by an illustrative example.