A real-time decision-making of maintenance using fuzzy agent

Authors:
Kun-Yung Lu;Chun-Chin Sy
Affiliations:
Department of Electronics Engineering, National United University, 1 Lienda, Kungching Li, Miaoli 36003, Taiwan, ROC;Department of Electronics Engineering, National United University, 1 Lienda, Kungching Li, Miaoli 36003, Taiwan, ROC
Venue:
Expert Systems with Applications: An International Journal
Year:
2009

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Abstract

In many manufacturing processes, real-time information can be obtained from process control computers and other monitoring devices. However, production control problems are frequently accompanied by certain and uncertain conditions. Problems with uncertainty conditions generally include difficulty in identifying an optimal solution in real-time using conventional mathematical approaches. This study presents a fuzzy logic approach for decision-making of maintenance. Some linguistic variables and rules-of-thumb are used to form the fuzzy logic models, based on the domain experts' experiences in production line and maintenance department. The historical production data are used to train and tune the fuzzy models. The tuned fuzzy models are then embedded into an internet-based and event-oriented information system as fuzzy agent. The production controller can easily make suitable production control decisions based on the inference results of fuzzy agents to satisfy the quick response requirement.