Time delay compensation by communication disturbance observer in bilateral teleoperation systems

2006 ◽  
Author(s):  
K. Natori ◽  
T. Tsuji ◽  
K. Ohnishi
Keyword(s):  
Time Delay ◽  
Disturbance Observer ◽  
Bilateral Teleoperation ◽  
Delay Compensation ◽  
Time Delay Compensation ◽  
Teleoperation Systems

Time-Delay Compensation by Communication Disturbance Observers of Different Orders in Bilateral Teleoperation Systems

2009 ◽  
Vol 129 (4) ◽  
pp. 353-362 ◽  
Author(s):  
Kenji Natori ◽  
Ryogo Kubo ◽  
Tomoyuki Shimono ◽  
Kouhei Ohnishi ◽  
Kanako Miura ◽  
...  
Keyword(s):  
Time Delay ◽  
Bilateral Teleoperation ◽  
Delay Compensation ◽  
Time Delay Compensation ◽  
Teleoperation Systems

scholarly journals Molten Steel Level Controller Based on Disturbance Observer with Time-delay Compensation

2011 ◽  
Vol 51 (2) ◽  
pp. 256-261 ◽  
Author(s):  
Minsung Kim ◽  
Sungwoong Moon ◽  
Changheum Na ◽  
Byungyong You ◽  
Yeongsub Kueon ◽  
...  
Keyword(s):  
Time Delay ◽  
Molten Steel ◽  
Disturbance Observer ◽  
Delay Compensation ◽  
Time Delay Compensation

Time delay compensation for nonlinear bilateral teleoperation: A motion prediction approach

2019 ◽  
Vol 41 (16) ◽  
pp. 4488-4498 ◽  
Author(s):  
Shaobo Shen ◽  
Aiguo Song ◽  
Tao Li ◽  
Huijun Li
Keyword(s):  
Time Delay ◽  
Controller Design ◽  
Motion Prediction ◽  
Prediction Errors ◽  
Bilateral Teleoperation ◽  
Delay Compensation ◽  
System A ◽  
Cascade Structure ◽  
Time Delay Compensation ◽  
Prediction Approach

This paper addresses the time delay compensation problem for nonlinear teleoperation system. A novel motion prediction approach is proposed based on a state observer with a cascade structure. The actual positions of master robot are estimated on the slave side by using delayed information of measurements. The prediction errors remain bounded under an appropriate set of assumptions for the system uncertainties. Moreover, an essential theorem for slave controller design is proposed to demonstrate performance recovery of the closed-loop system with cascade observer. By using the predictions, the forward time delay is effectively compensated when we design the controller of slave robot. Simulations are performed to verify the effectiveness of proposed method. The prediction results are highlighted through comparing with other two kinds of cascade predictors.

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