Wireless Network Design for Control Systems: A Survey
Wireless Network Design for Control Systems: A Survey
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DOI：
10.1109/comst.2017.2780114
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发表时间：
2018-01-01
影响因子：
35.6
通讯作者：
Johansson, Karl Henrik
中科院分区：
文献类型：
--
作者：
Park, Pangun;Ergen, Sinem Coleri;Johansson, Karl Henrik
无线网络控制系统是由分布在空间上的传感器、执行器和控制器通过无线网络进行通信，而不是传统的点对点有线连接。由于其在降低部署和维护成本、极大的灵活性和可能增强的安全性方面的主要优势，WNCS正在成为汽车电气系统、航空电子控制系统、建筑管理系统和工业自动化系统中关键控制系统的基础设施技术。无线网络控制系统面临的主要挑战是如何考虑通信和控制系统之间的紧密交互来联合设计通信和控制系统，以提高控制性能和网络寿命。在本次调查中，我们对无线网络控制系统的无线网络设计和优化的文献进行了详尽的回顾。首先，我们讨论了所谓的关键交互变量，包括采样周期、消息延迟、消息丢弃和网络能量消耗。这些通信和控制变量的相互影响推动了它们的联合调整。我们讨论了考虑交互变量对控制系统性能影响的控制系统的分析和设计。此外，我们还讨论了通信协议各层可控无线网络参数对这些交互变量概率分布的影响。我们还回顾了当前无线网络控制系统的无线网络标准，以及它们相应的网络参数适配方法。最后，我们介绍了最先进的无线网络控制系统的无线网络设计和优化，同时强调了各种方法的可实现性能和复杂性之间的权衡。我们通过强调主要的研究问题和确定未来的研究方向来结束调查。
Wireless networked control systems (WNCSs) are composed of spatially distributed sensors, actuators, and controllers communicating through wireless networks instead of conventional point-to-point wired connections. Due to their main benefits in the reduction of deployment and maintenance costs, large flexibility and possible enhancement of safety, WNCS are becoming a fundamental infrastructure technology for critical control systems in automotive electrical systems, avionics control systems, building management systems, and industrial automation systems. The main challenge in WNCS is to jointly design the communication and control systems considering their tight interaction to improve the control performance and the network lifetime. In this survey, we make an exhaustive review of the literature on wireless network design and optimization for WNCS. First, we discuss what we call the critical interactive variables including sampling period, message delay, message dropout, and network energy consumption. The mutual effects of these communication and control variables motivate their joint tuning. We discuss the analysis and design of control systems taking into account the effect of the interactive variables on the control system performance. Moreover, we discuss the effect of controllable wireless network parameters at all layers of the communication protocols on the probability distribution of these interactive variables. We also review the current wireless network standardization for WNCS and their corresponding methodology for adapting the network parameters. Finally, we present the state-of-the-art wireless network design and optimization for WNCS, while highlighting the tradeoff between the achievable performance and complexity of various approaches. We conclude the survey by highlighting major research issues and identifying future research directions.