An Agent-based Transportation Route Planning Method for Led Fabricating Line and Its Evaluation Using Lagrangian Relaxation.

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Author(s)

    • NISHI Tatsushi
    • Department of Electrical and Electronic Engineering, Okayama University
    • SOTOBAYASHI Ken
    • Department of Electrical and Electronic Engineering, Okayama University
    • ANDO Masakazu
    • Department of Electrical and Electronic Engineering, Okayama University
    • KONISHI Masami
    • Department of Electrical and Electronic Engineering, Okayama University

Abstract

In most of Light Emitting Diode (LED) semiconductor fabricating line, AGVs (Automated Guided Vehicles) are used to transport the products between the facilities in order to ensure dust-free operation in the transportation systems. It has been demanded to realize the route planning system which speedily derives a feasible transportation route so that each AGV does not interfere with other AGVs. In this paper, we applied an agent-based optimization method for the route planning problems with multiple AGVs in LED fabricating bay in which the total transportation time is minimized. In the agent-based method, each AGV agent independently searches its candidate of route. The imitated pheromone is effectively used to generate the route which avoids the collision among AGVs. In order to evaluate the performance of the proposed method, the lower bound of the original problem is obtained by using the Lagrangian relaxation technique. The performances of the proposed method are evaluated by using the value of duality gap for a large scale problem. The effectiveness of the agent-based optimization method is demonstrated.

Journal

  • JSME International Journal Series C

    JSME International Journal Series C 46(1), 18-23, 2003

    The Japan Society of Mechanical Engineers

Codes

  • NII Article ID (NAID)
    130000167060
  • Text Lang
    ENG
  • ISSN
    1344-7653
  • Data Source
    J-STAGE 
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