摘要
网络控制系统是一种全分布,网络化的实时反馈控制系统。它是计算机,控制学科及网络技术的综合应用。网络控制系统一方面给系统带来了开放性,数字互连等特点,另一方面由于网络独特的特点也给系统带来了所不希望的性能,例如网络延时,数据丢包及网络资源的竞争,如何解决这些问题成为国际学术界研究的一个热点。基于网络资源的竞争问题,主要研究网络系统的调度方法。在经典的集成反馈调度方法的基础上,将模糊反馈控制理论引入到该调度方法中,设计完成了集成模糊反馈调度器,详细阐述了设计的各个步骤。仿真结果表明,所设计的集成模糊反馈调度器的调度能力优于EDF调度算法,能够有效地处理非线性,不确定性问题,具有良好的鲁棒性能和适应性。
Network control system is a fully distributed, networked, real-time feedback control system. It is the comprehensive application of the computer, control subjects and network technology. On the one hand, NCS brings to the system of open, digital interconnect, etc. It also brings some unexpected performance to the system because of the distinct characteristics of the network, such as network delay, packet loss and network resources competition. How to solve these problems becomes a hot international academic research. Based on the classical integrated feedback scheduling, the fuzzy feedback control theory is introduced to the scheduling, and the integration fuzzy feedback scheduler is designed. At the same time, the steps of design are described particularly. The simulation results show that the scheduling performance of integration fuzzy feedback scheduler is better than classical integrated feedback scheduler. It can effectively deal with the nonlinear uncertainty, and has good robustness and adaptability.
出处
《控制工程》
CSCD
北大核心
2011年第3期429-433,共5页
Control Engineering of China
基金
国家自然科学基金资助项目(60974070)
关键词
集成反馈调度
网络需求度
优先级
模糊反馈调度
文献
integrated feedback scheduling
network requirement
priority
fuzzy feedback scheduling
