State and Impedance Reflection Based Control Interface for Bilateral Telerobotic System with Asymmetric Delay

State and Impedance Reflection Based Control Interface for Bilateral Telerobotic System with... In this paper, we investigate state and imped-ance reflection based robust control strategy for bilateral shared telerobotic system under unsymmetrical time varying delay. Shared input for both master and slave robot is designed by combining delayed position and position-velocity signals with impedance reflection properties of the interaction between slave and environment and between human and master robot manipulator. Adaptive control algorithm is proposed to estimate the interaction properties between human and master manipulator and between slave and remote environment. Then, the delayed estimated interaction properties are reflected back to the master and slave robot manipulator to match with the estimated impedance properties of the interaction between human and remote environment. We combine robust term with adaptive control term to deal with the uncertainty associated with gravity loading vector, unmodeled dynamic and external disturbance. The stability conditions with time varying delays are derived by using Lyapunov-Krasovskii functional. Experimental results are given to demonstrate the validity of the proposed design for real-time applications. Journal of Intelligent & Robotic Systems Springer Journals

State and Impedance Reflection Based Control Interface for Bilateral Telerobotic System with Asymmetric Delay

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Springer Netherlands
Copyright © 2017 by Springer Science+Business Media Dordrecht
Engineering; Control, Robotics, Mechatronics; Electrical Engineering; Artificial Intelligence (incl. Robotics); Mechanical Engineering
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