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Transformacja rozmytej interpretowanej sieci Petriego na schemat uk?adu logicznego

机译:将模糊解释的Petri网转换为逻辑方案

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W pracy przedstawiono teoretyczne podstawy nowego rodzaju rozmytej, interpretowanej sieci Petriego, opisuj?c i uzasadniaj?c zaproponowan? struktur? topologiczn? i jej interpretacj?. Przedstawiono u?yteczn? w praktyce metod? odwzorowania uk?adowego tej sieci, podaj?c konkretny sposób transformacji jej diagramu na schemat logiczny, zbudowany z rozmytych elementów kombinacyjnych i sekwencyjnych. Schemat ten mo?e by? podstaw? do generowania kodu programu steruj?cego dla sterowników przemys?owych PLC.%The fuzzy Petri nets are applied above all as advisory or monitoring systems. The nets take into account both binary and multivalued (analog) signals appearing in the observed system. Only a few works are devoted to using these nets directly for control [3, 4, 5]. The fuzzy interpreted Petriego net defined in this paper belongs to low-level nets, used for modelling systems based on FPGA devices or industrial controllers. The net enables presenting the control algorithm in a graphical (diagram of the net) or algebraic (incidence matrix) form [7], which makes the analysis of its properties already at the stage of the abstract synthesis easier. Moreover, this net allows including quantitative changes occurring in the system, not losing natural interpretation of transferring the marker through the transition. In the paper basic definitions of the fuzzy interpreted Petriego net describing the net construction and functioning are given. The transformation method of this net into a logic circuit based on fuzzy combinational and sequential circuits is proposed. All essential elements for this conversion, i.e. the modified fuzzy SR flip-flop (8), the activation circuit (Fig. 2) and the fuzzy gate based on bounded product (6) are described. The examples of connecting these elements are shown (Figs. 3-6) and a manner of their synchronization is described. The logic circuit obtained in this way can be a basis for generating the code of the control program for industrial controllers and lead to partial automation of this process.
机译:本文提出了一种新型的模糊解释Petri网的理论基础,描述并证明了所提出的结构?拓扑?及其解释。有用在实践中,方法?该网络的系统映射,提供了一种将其图转换为由模糊组合和顺序元素构成的逻辑图的特定方法。该图可以是刮?生成工业PLC的控制程序代码。%模糊Petri网首先用作咨询或监视系统。网络考虑了出现在观察到的系统中的二进制和多值(模拟)信号。仅少数作品致力于将这些网络直接用于控制[3,4,5]。本文定义的模糊解释Petri网属于低级网,用于基于FPGA器件或工业控制器的系统建模。网络使得能够以图形形式(网络图)或代数形式(入射矩阵)来表示控制算法[7],这使得在抽象合成阶段已经很容易对其特性进行分析。而且,该网络允许包括系统中发生的定量变化,而不会丢失通过过渡转移标记的自然解释。在本文中,给出了描述网络的构造和功能的模糊解释Petri网的基本定义。提出了将该网络转换为基于模糊组合和时序电路的逻辑电路的方法。此转换的所有基本要素,即描述了改进的模糊SR触发器(8),激活电路(图2)和基于有界积的模糊门(6)。显示了连接这些元素的示例(图3-6),并描述了它们的同步方式。以这种方式获得的逻辑电路可以作为生成用于工业控制器的控制程序的代码的基础,并导致该过程的部分自动化。

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