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计算机工程 ›› 2007, Vol. 33 ›› Issue (20): 122-124. doi: 10.3969/j.issn.1000-3428.2007.20.042

• 网络与通信 • 上一篇    下一篇

基于小波ARMA延迟预测的Internet远程控制

王 强,谢林柏,纪志成   

  1. (江南大学电气自动化研究所,无锡 214122)
  • 收稿日期:1900-01-01 修回日期:1900-01-01 出版日期:2007-10-20 发布日期:2007-10-20

Internet Remote Control Based on Wavelet-ARMA Delay Prediction

WANG Qiang, XIE Lin-bo, JI Zhi-cheng   

  1. (Institute of Electric Automatic, Southern Yangtze University, Wuxi 214122)
  • Received:1900-01-01 Revised:1900-01-01 Online:2007-10-20 Published:2007-10-20

摘要: 针对Internet网络控制中延迟变化所引起的系统不稳定问题,该文提出了一种基于小波ARMA多尺度预测的延迟时间预测方法,并将其与Smith预估器结合应用于Internet网络控制中,解决了在随机时变的数据包传输延迟情况下Internet网络控制系统的有效控制问题。以直流电机为例验证了预测算法的可行性和有效性。

关键词: 小波, ARMA, 延迟预测, Smith预估, 网络控制系统

Abstract: Aiming at the instability of Internet remote control system with variation time-delay, a novel delay prediction method based on wavelet-ARMA technique is designed to solve the problem caused by Internet-induced time delays in an Internet remote control system. Simulation results show that the method combined with Smith prediction is able to keep the Internet remote control system with good stability and dynamic performance. The availability and effectiveness of the method are verified by the usage of DC motor.

Key words: Wavelet, ARMA, time-delay prediction, Smith prediction, network control system

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