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Please use this identifier to cite or link to this item: http://ntour.ntou.edu.tw:8080/ir/handle/987654321/51169

Title: A Heuristic Search Approach Using Approximate Solutions of Petri Net State Equations for Scheduling Flexible Manufacturing Systems
Authors: Mu Der Jeng
Shih Chang Chen
Contributors: 國立臺灣海洋大學電機工程學系
Keywords: heuristic search
timed Petri nets
near-optimal schedules
Date: 1998-04
Issue Date: 2018-11-15T01:38:23Z
Publisher: International Journal of Flexible Manufacturing Systems
Abstract: Abstract: This paper proposes a new heuristic search approach based on an analytic theory of the Petri net state equations for scheduling flexible manufacturing systems (FMSs) with the goal of minimizing makespan. The proposed method models an FMS using a timed Petri net and exploits approximate solutions of the net's state equation to predict the total cost (makespan) from the initial state through the current state to the goal. That is, the heuristic function considers global information provided by the state equation. This makes the method possible to obtain solutions better than those obtained using prior works (Lee and DiCesare, 1994a, 1994b) that consider only the current status or limited global information. In addition, to reduce memory requirement and thus to increase the efficiency of handling larger systems, the proposed scheduling algorithm contains a procedure to reduce the searched state space.
Relation: 10(2) pp.139-162
URI: http://ntour.ntou.edu.tw:8080/ir/handle/987654321/51169
Appears in Collections:[電機工程學系] 期刊論文

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