Delay Compensation for Teleoperation Systems Based on Communication Disturbance Observers

Author:

Zhang Wen-An, ,Jin Junkai,Qiu Xiang,Yu Li

Abstract

This paper investigates the control problem for a class of teleoperation systems with communication delays. The network-induced delays are usually inevitable in teleoperation systems, and may be time varying and unpredictable. Since the conventional Smith predictor is only useful for fixed delays, a novel delay compensation and controller design method is proposed in this paper. The proposed method combines a disturbance rejection controller and a communication disturbance observer (CDOB). Simulations are provided to show the effectiveness and superiority of the proposed delay compensation and controller design method.

Publisher

Fuji Technology Press Ltd.

Subject

Artificial Intelligence,Computer Vision and Pattern Recognition,Human-Computer Interaction

Reference15 articles.

1. C. Hua and X. P. Liu, “Delay-Dependent Stability Criteria of Teleoperation Systems with Asymmetric Time-Varying Delays,” IEEE Trans. on Robotics, Vol.26, No.5, pp. 925-932, 2010.

2. G. Niemeyer, “Telemanipulation with Time Delays,” The Int. J. of Robotics Research, Vol.23, No.9, pp. 873-890, 2004.

3. S. G. Liu, Z. X. Zhou, and F. Yang, “Teleoperation Control of an Internet-based Robot with Varying Time Delay,” Control Engineering of China, Vol.13. No.S0, pp. 179-181, 2006.

4. S. Ganjefar, H. Momeni, and F. Janabi-Sharifi, “Teleoperation Systems Design Using Augmented Wave-Variables and Smith Predictor Method for Reducing Time-Ddelay Effects,” Proc. of the IEEE Int. Symp. on Intelligent Control, Vancouver, Canada, IEEE. pp. 333-338, 2002.

5. S. Munir and W. J. Book, “Internet-based Teleoperation Using Wave Variables with Prediction,” IEEE/ASME Trans. on Mechatronics, Vol.7, No.2, pp. 124-133, 2002.

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