网络控制系统研究进展

Progress of Networked Control Systems

对网络控制系统领域的主要研究成果和将来可能遇到的挑战进行阐述。网路控制系统主要分为网络控制、基于网络的控制和多智能体系统3个研究领域。网络控制是针对网络自身的控制,主要是对通信网络的网络路由、网络流量等的调度与控制;基于网络的控制是对被控系统的控制,网络只是作为一种传输通道,研究时考虑网络自身存在的问题对系统的影响,对整个闭环系统进行建模、性能分析以及控制器的设计等;多智能体系统主要是研究网络的拓扑结构和多智能体之间相互作用对整个系统行为的影响。本文主要针对基于网络的控制系统中的时延、丢包、多包传输问题,介绍近年来网络控制系统分析与综合方面的研究成果和最新进展。最后,论述了网络控制系统研究中尚待解决的问题,展望了网络控制系统未来的发展前景。

The paper reviews the major contributions and the possible future challenges in the emerging area of Networked Control Systems （NCSs）. Activities in this field can be categorized as the control of networks, the control over networks, and the multi-agent system. The control of networks is mainly concerned with providing a certain level of performance to a network data flow, to efficiently use network resources. The control over networks deals with the design of feedback strategies for control systems in which control data are exchanged through unreliable communication links. The multi-agent system deals with the study of how the network architecture and the interactions between network components influence the global control goal. More precisely, the problem here is to understand how the local laws describing the behavior of the individual agents influence the global behavior of the networked system. Focusing on network delays, network packet dropout, and multiple-packet transmission in the area of control over networks, this paper reviews the research achievements and advances of analysis and synthesis in NCS. The problems in NCS and the future directions in NCS are pointed out.