複数の生産設備による同期処理を考慮に入れたスケジューリング

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タイトル別名
  • Study on Production Scheduling with Consideration of Synchronized Operations by Multiple Resources
  • フクスウ ノ セイサン セツビ ニ ヨル ドウキ ショリ オ コウリョ ニ イレタ スケジューリング

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This study deals with scheduling problems with consideration of synchronized operations by multiple production resources. Transfer of a material between a machine tool and a conveying device by a human operator is a typical example of the synchronized operations. When the synchronized operations are taken into consideration, it is necessary to check conflicts between the resources before an appropriate job is assigned by Earliest Starting Time rule, which is one of the popular dispatching rules. A new sequence is proposed in the present paper to check the conflicts. Feasible scheduling with the consideration of synchronized operations is realized by combining the proposed sequence with a conventional dispatching rule. Computational scheduling results are shown in order to verify the effectiveness of the selecting sequences proposed here. Computational scheduling is carried out, and the results show that a practical production schedule can be planned without any conflicts by the proposed sequence, despite complex constraints due to the consideration of synchronized operations. Furthermore, a blocked status of the machine tool, the conveying device and the buffer appears on the Gantt chart unlike the conventional scheduling methods.

収録刊行物

  • 精密工学会誌

    精密工学会誌 73 (7), 834-839, 2007

    公益社団法人 精密工学会

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