Importance

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Abstract

An object of this invention is to provide efficient operations of a production line for producing finished products by performing working in which a variety of parts are selectively combined with one another during a plurality of processes. A semi-finished product produced in processes (1 and 2) is assigned to an article number; parts serving as raw materials, a supplier of the semi-finished product, or a destination of the semi-finished product or part are specified; and these specified data are distributed and transmitted from a higher level system (4) to respective control systems (5, 6, 7 and 8) as planned data to be executed and planned data to be received. The respective systems display the contents of the data thus transmitted on display sections (52, 62, 72 and 82), issue work instructions on the basis of the contents of the data, and output request instructions to the systems (6, 7 and 8) of the supplier side on the basis of the displayed contents or output supply instructions to the destination systems (5, 6 and 7). The system which has received the request instruction outputs a conveyance instruction to the conveyance control system (9) to convey the raw materials to the system which has output the request instruction, while the system which has received the supply instruction outputs a conveyance instruction to the conveyance control system (9) to convey the raw material from the system which has output the supply instruction.

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First Claim