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A Study on Real-Time Scheduling Methods in Holonic Manufacturing Systems

  • Koji Iwamura
  • Yoshitaka Taimizu
  • Nobuhiro Sugimura
Conference paper
Part of the IFIP International Federation for Information Processing book series (IFIPAICT, volume 168)

Abstract

Recently, new architectures of manufacturing systems have been proposed to realize flexible control structures of the manufacturing systems, which can cope with the dynamic changes in the volume and the variety of the products and also the unforeseen disruptions, such as failures of manufacturing resources and interruptions by high priority jobs. They are so called as the autonomous distributed manufacturing system, the biological manufacturing system and the holonic manufacturing system. Rule-based scheduling methods were proposed and applied to the real-time production scheduling problems of the HMS (Holonic Manufacturing System) in the previous report. However, there are still remaining problems from the viewpoint of the optimization of the whole production schedules. New procedures are proposed, in the present paper, to select the production schedules, aimed at generating effective production schedules in real-time. The proposed methods enable the individual holons to select suitable machining operations to be carried out in the next time period. Coordination process among the holons is also proposed to carry out the coordination based on the effectiveness values of the individual holons.

Key words

Manufacturing system Holonic Manufacturing system Real-time scheduling system coordination 

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Copyright information

© International Federation for Infrmation Processing 2005

Authors and Affiliations

  • Koji Iwamura
    • 1
  • Yoshitaka Taimizu
    • 1
  • Nobuhiro Sugimura
    • 1
  1. 1.College of Eng.Osaka Prefecture Univ.Japan

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