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Please use this identifier to cite or link to this item: http://ntour.ntou.edu.tw:8080/ir/handle/987654321/51063

Title: Enhancement of Selective Siphon Control Method for Deadlock Prevention in FMSs
Authors: Yen-Liang Pan
Cheng-Fu Yang
Mu-Der Jeng
Contributors: 國立臺灣海洋大學電機工程學系
Date: 2015-08
Issue Date: 2018-11-09T01:39:32Z
Publisher: Mathematical Problems in Engineering
Abstract: Abstract: One novel control policy named selective siphon control policy is proposed to solve for deadlock problems of flexible manufacturing systems (FMSs). The new policy not only solves the deadlock problem successfully but also obtains maximally permissive controllers. According to our awareness, the policy is the first one to achieve the goal of obtaining maximally permissive controllers for all S3PR (one system of simple sequential processes with resources, S3PR) models in existing literature. However, one main problem is still needed to solve in their algorithm. The problem is that the proposed policy cannot check the exact number of maximally permissive states of a deadlock net in advance. After all iterating steps, the final maximally permissive states can then be known. Additionally, all legal markings are still to be checked again and again until all critical markings vanished. In this paper, one computationally improved methodology is proposed to solve the two problems. According to the experimental results, the computational efficiency can be enhanced based on the proposed methodology in this paper
Relation: 2015(3) pp.1-6
URI: http://ntour.ntou.edu.tw:8080/ir/handle/987654321/51063
Appears in Collections:[電機工程學系] 期刊論文

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