Synthesis and implementation of local modular supervisory control for a manufacturing cell

M. H. D. Queiroz
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引用次数: 130

Abstract

Supervisory control theory is applied to a manufacturing cell commanded by a programmable logic controller (PLC). By means of a local modular approach -a methodology that exploits modularity of the plant and of the behavioral specifications models - optimal supervisors are obtained without state-space explosion. For the purpose of simplifying the ladder diagram implementation in the PLC, reduced supervisors are implemented in a three level structure that executes modular supervisor concurrent action and interfaces the theoretical model with the real system. The flexible and productive manufacturing cell behavior, after practical implementation of the control system, and the final PLC code readability and flexibility are positive quality indicators to the applied methodology.
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制造单元局部模块化监控的合成与实现
将监控理论应用于由可编程控制器(PLC)控制的生产单元。通过局部模块化方法-一种利用工厂和行为规范模型的模块化的方法-在没有状态空间爆炸的情况下获得最优监控器。为了简化梯形图在PLC中的实现,将简化的监控器实现为三层结构,执行模块化的监控器并发动作,并将理论模型与实际系统连接起来。在实际实施控制系统后,柔性和生产性的制造单元行为以及最终的PLC代码的可读性和灵活性是应用方法的积极质量指标。
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