基于在线时延辨识的网络控制系统调度  

Scheduling of networked control systems based on online time-delay identification

作　　者：郭戈[1] 杨琳琳[2] 

机构地区：[1]大连海事大学自动化与电气工程学院,辽宁大连116026 [2]兰州理工大学电气工程与信息工程学院,甘肃兰州730050

出　　处：《兰州理工大学学报》2007年第4期77-82,共6页Journal of Lanzhou University of Technology

基　　金：国家自然科学基金(50274003)

摘　　要：基于在线网络时延的辨识方法,提出一种对网络控制系统的周期信息、非周期信息和消息的实时动态调度算法.所提出的利用一种滤波器的辨识方法能够实时在线辨识网络时延,而且基于该时延辨识的调度算法能够动态地调整采样周期和分配带宽,并保证系统的性能和提高网络资源的利用率.仿真实例说明了辨识方法的有效可行性.In this paper, a real-time dynamic scheduling algorithm for periodic data, sporadic data, and messages in networked control systems was proposed based on the method for online network time-delay identification. The identification was implemented by using a kind of filtering operation, and it could perform online real-time identification and, then, dynamically adjust the sampling period and allocate the bandwidth on the basis of foregoing identification, guaranteeing the system performance and increasing network resources. It was illustrated by a simulation example that the identification method was valid and feasible.

关 键 词：网络控制系统 调度 采样周期 网络时延 

分 类 号：TP273[自动化与计算机技术—检测技术与自动化装置]