信息物理系统(Cyber—physical System,CPS)通过感知设备进行环境感知采集,深度融合计算、通信和控制能力的网络化、智能化物理设备系统,通过计算进程和物理进程相互交互形成反馈循环,达到物理世界与信息世界交互和协调来增加或扩展新功能,提供实时感知、动态控制和信息反馈等服务。链路质量的预测对信息物理系统上层协议设计尤为重要,它为上层协议选择稳定、高质量的数据传输链路提供了充分的判断依据。文中基于多元逻辑回归分析方法建立信息物理系统链路质量预测模型,仿真实验表明,该算法可以对链路质量进行最优预测。
Cyber-physical System(CPS) is the network-physical-equipment-system based on the depth context awareness, fusion computing, communication and control(3C) abilities, which realizes the real world and cyber world coordination and interactive to increase or expand new functions, and provides the real-time perception, dynamic control and cyber feedback and other services with the influence and feedback loop between the calculation process and physical process. The prediction of link quality is of great importance to the design in CPS, which provides upper layer protocol an adequate judgment ground in choosing steady and high quality date transfer link. A link quality prediction algorithm is built based on multivariate logistic regression analysis for CPS. It has proved that this algorithm can optimally predict the quality of the link.