Automatic control of a One-of-a-Kind Production cell |
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Authors: | Dr Yiliu Tu |
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Affiliation: | (1) Department of Manufacturing Engineering and Engineering Management, City University of Hong Kong, 83 Tat Chee Avenue Kowloon, Hong Kong |
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Abstract: | This paper reports the outcome of a research project which aims to solve the problems in automatic control of the shop floor in One-of-a-Kind Production (OKP) through developing a prototype control system for an experimental OKP cell at the laboratory. The main problems in automatic control of the shop floor in OKP are the frequent changes of product structure or type and consequent changes of production system configuration. These changes in OKP make it necessary to have a highly flexible and robust automatic control system. To resolve the problems, a distributed control system has been developed at the CIM laboratory of the Department of Production, Aalborg University, Denmark. This control system has enough flexibility and robustness to cope with the aforementioned changes in OKP. To support the design and implementation of the control system, several concepts, algorithms and control principles, such as task logic routes, address code of production resources, automatic task decomposition algorithm, generic control modules and distributed control principles are also proposed in this paper. |
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Keywords: | Automatic control of shop floors Automatic task decomposition Distributed control system One-of-a-Kind production |
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