1013 コントラクト型生産制御システムの状態遷移(OS1 生産システムの設計・評価技術)

概要

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We proposed the Contract-based Production Control System (CPCS) as the concrete example of distributed autonomous production control system. In this paper, we designed the detailed procedure of how a job and a cell make a contract for executions of work elements. The way to design the architecture of contract activities in CPCS is following 3 steps. 1) List-up of job and work-cell's states & signals for change of states. 2) Categorization of signals & Design of the mechanism to send off signals. 3) Expression of the relationship among states, signals and mechanism to send off signal by Petri-net graph. As a result, the number of job's states is 11 and work-cell's states are 9. The total signals for changes of states are 31. By the categorization of signals, work-cells need to have 4 mechanisms to control holding operation, time limit, evaluation of jobs and monitoring. Jobs need to have 3 mechanisms to control work-element, time limit, and evaluation of work-cells.
一般社団法人日本機械学会の論文
2001-03-22