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首页> 外文期刊>International Journal of Production Research >A synthesis approach to distributed supervisory control design for manufacturing systems with Grafcet implementation
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A synthesis approach to distributed supervisory control design for manufacturing systems with Grafcet implementation

机译:采用Grafcet实现的制造系统分布式监督控制设计的综合方法

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摘要

In supervisory control, computational complexity and implementation flexibility represent major challenges when a large number of local components compose a target system. To overcome these difficulties, we propose a formal approach to distributed control synthesis and implementation for automated manufacturing systems (AMS). We assume that the system is modelled with automata in a local modular fashion. Local control specifications are defined for each local subsystem by means of logical equations to construct local controllers (LCs). Then, global control specifications, stated as logical implications, are applied to the LCs, which allows synchronisation and cooperative interaction among the subsystems. This paper makes two contributions. First, it outlines a formal method for constructing minimally restrictive and deadlock-free distributed controllers (DCs). Second, it proposes a method for the interpretation of these DCs into Grafcet, which is a graphical modelling formalism widely used to design the controller's dynamic behaviour for AMS. An experimental manufacturing system illustrates the approach.
机译:在监督控制中,当大量本地组件组成目标系统时,计算复杂性和实现灵活性成为主要挑战。为了克服这些困难,我们提出了一种用于自动化制造系统(AMS)的分布式控制综合和实现的正式方法。我们假设系统以本地模块化方式通过自动机建模。通过逻辑方程式为每个本地子系统定义本地控制规范,以构造本地控制器(LC)。然后,将表示为逻辑含义的全局控制规范应用于LC,从而允许子系统之间进行同步和协作交互。本文有两个贡献。首先,它概述了一种构造最小限度和无死锁的分布式控制器(DC)的正式方法。其次,提出了一种将这些DC解释为Grafcet的方法,这是一种图形建模形式,被广泛用于设计AMS控制器的动态行为。实验制造系统说明了该方法。

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