2911 コントラクト型生産制御システムにおける契約進行状態の分析

概要

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We have already proposed the Contract-based Production Control System (CPCS) as the concrete example of distributed autonomous production control system. In this paper, we designed the detail contracting procedure for the production progress in CPCS based on a state-transition graph. In these graphs, a job has 22 states and 46 events, and a work-cell has 17 states and 32 events. As a result of static analysis in these graphs, there is not contradiction and deadlock because these graph are "state machine". In the petri-net simulation analysis, we confirmed that the infinity loop didn't occur. Moreover, a job or a work-cell, which has a dominant position, had better call for. And so, according to the ratio of job to work-cell, to switch from applying to calling for or from calling for to applying has a good influence on production lead-time.
一般社団法人日本機械学会の論文
2002-09-20