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《计算机技术与发展》[ISSN:1006-6977/CN:61-1281/TN]

卷:

期数:

2012年11期

页码:

61-64

栏目:

智能、算法、系统工程

出版日期:

1900-01-01

文章信息/Info

Title:

Faults Detection Occurred in Wireless Networked Control System with Packet Dropout

文章编号:

1673-629X（2012）11-0061-04

作者:

陈志明 崔宝同

江南大学物联网工程学院

Author(s):

CHEN Zhi-ming;  CUI Bao-tong

School of IoT Engineering, Jiangnan University

关键词:

无线网络控制系统; 数据丢包; 稳定性; 故障检测

Keywords:

wireless networked control systems;  packet dropout;  stability;  fault detection

分类号:

TP31

文献标志码:

A

摘要:

针对一类具有数据包丢失的无线网络控制系统，根据数据包丢失和未丢失的情况，同时结合无线网络控制系统数据传输过程中时延的特点，设计了具有时延补偿功能的鲁棒H∞观测器进行故障检测。当系统未发生故障且不存在未知扰动时，系统是稳定的，当存在未知扰动时，系统满足一定的H∞性能。为了及时检测系统的故障并减小系统故障的误报率，设计了残差评价信号，当系统发生故障，残差评价信号即刻超过指定值，系统检测出故障。所得结果通过仿真示例得到了验证

Abstract:

For a class of wireless networked control systems with packet dropout,according to packet loss and not loss,combined with the delay characteristics of the wireless networked control systems during data transfer, a robust Ho∞ observer with delay compensation has been designed to make a fault detection of the systems. When there are no faults and unknown disturbance, the systems is stable t with the presence of unknown disturbance,the system meets certain H∞ performance. In order to detect faults instantly and reduce the false alarm rate, designed a residual evaluation signal, when a fault occurs, the residual evaluation signal exceeds the threshold rapidly to imply that fault is detected. All obtained results have verified through simulation examples

备注/Memo

备注/Memo:

国家自然科学基金（61174021）陈志明（1986-），男，江苏泰州人，硕士研究生，研究方向为无线网络控制系统故障检测；崔宝同，博士，教授，研究方向为控制理论及其应用、工业过程模型化与控制、复杂大系统与控制

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更新日期/Last Update: 1900-01-01