Research Initiation: Distributed Shop Floor Control in LargeIntegrated Manufacturing Systems

本研究的目的是研究由许多自主智能设备组成的大型制造系统的分布式控制的综合和算法问题。分布式控制的几个方面将被研究。研究的一个方面将集中于模型和方法的发展，以表征和比较可选的分布式控制体系结构以及信息和通信系统性能和需求的理论预测。第二个方面侧重于开发健壮的实时分布式控制算法，这些算法在客户和承包商节点的定义、设备之间交互的性质以及与设备如何决定是否参与拍卖相关的控制策略方面有所不同。这方面的研究也将调查投标是如何签约和评估设备，以及设备如何应对突发事件。这些算法将通过制造系统模型的离散事件仿真和计算机网络对这种制造系统的仿真来进行评估。该研究将促进新型高性能智能制造系统的开发，该系统可能提供更大的灵活性和对系统变化的响应能力。研究可能会产生新的控制算法，提高系统的性能和灵活性。增强的系统性能可以增加这样一个系统的竞争力。

9410199 Veeramani The objective of this research is to investigate synthesis and algorithm issues pertaining to distributed control of large manufacturing systems comprised of many autonomous intelligent devices. Several facets of distributed control will be investigated. One aspect of the research will focus on the development of models and methodologies to characterize and compare alternative distributed control architectures and theoretical prediction of information and communication system performance and requirements. A second aspect focuses on the development of robust, real time distributed control algorithms that differ in terms of the definition of customers and contractor nodes, the nature of interaction between devices and the control policies that relate to how devices decide whether to participate in an auction. This aspect of research will also investigate how bids are contracted and evaluated by devices, and how the devices react to unexpected events. The algorithms will be evaluated through discrete event simulation of manufacturing systems models and through emulation of such a manufacturing system by a network of computer. The research will facilitate the development of a new class of high-performance intelligent manufacturing systems that can possibly provide more flexibility and responsiveness to system changes. New control algorithms that enhances system performance and flexibility may result from the research. Enhanced systems performance can increase the competitiveness of such a system.