Research Initiation: Discrete-Event Control Design Methods for Flexible Automation

9410386 Zhou 该项目讨论了顺序功能图 (SFC) 和基于 Petri 网的方法。 该项目的第一个目标是对梯形逻辑图 (LLD)、SFC 和 Petri 网在柔性制造系统上的设计效率、成本、适应性和可维护性进行基准研究。 第二个目标是执行从 LLD 到 SFC 和 Petri 网的设计恢复。 研究成果将推进大型工业自动化项目中设计和优化离散事件控制器的知识、工具和方法。 当前的工业自动化制造系统需要处理数十个到数千个的输入和输出，并且具有通信能力。 事实证明，传统的离散事件控制设计方法（例如 LLD）对于大规模问题完全无效。

9410386 Zhou Sequential Function Chart (SFC) and Petri net based methodologies are addressed in this project. The first objective of this project is to perform a benchmark study for Ladder Logic Diagrams (LLDs), SFCs, and Petri nets in terms of their design efficiency, cost, adaptability, and maintainability on a flexible manufacturing system. The second objective is to perform design recovery from LLDs to SFCs and Petri nets. The research results will advance the knowledge, tools, and methodologies for designing and optimizing discrete-event controllers in large industrial automation projects. Current industrial automated manufacturing systems work with a number of inputs and outputs varying from perhaps ten to several thousands and have communication capacity. Traditional discrete-event control design approaches such as LLDs prove entirely ineffective on large-scale problems.