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A Unified Software and Hardware Distributed Approach for the cam/CIM Environment with the Occam/Transputer Model

IFAC Proceedings Volumes 1987年第5期20卷 33-38页

作者： Ch. Tassakos K.W. Plessmann Department of Computer Application and Process Control of Aachen Technical University Steinhcichstr 54A 5100 Aachen FRG

The active involvement of the computer in the manufacturing process and the control of production is the basis for computer-aided manufacturing (cam). Technological development has opened the way to more flexible shoofloor automation. The key for the successful introduction of the computer integrated manufacturing concepts (CIM) is the ability to react fast and flexible to all new demands from the market side. In this paper we discuss a method based on the OCcam/Transputer parallel approach to deal with at least a part of the complex demands on the structure and operation of the manufacturing environment. We use the concept of decomposing a complex system into a number of sub-systems which react with each other. The whole system is decomposed twice: horizontally into a number of functionally equivalent subparts and vertically into various levels of abstraction, all within the unified OCcam model. The result is a hierarchical net structure which consists of local intelligent islands at various logical levels, which autonomously work in parallel and interact with the components of the adjacent logical levels. Subject area: 4.1 Digital Computer control systems, 8.1 Automatic control in Manufacturing.

关键词： Hardware Software Microcomputers system Design Specification OCcam 2 and Transputer Distributed control Parallel Processing fms/cam control system

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