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For Internet based real-time teleoperation systems, unknown and variable time delay can cause instability in the closed loop control system and hence hinder task accomplishment. According to requirement of Internet-based teleoperation, exact prediction of RTT can improve greatly performance of the teleoperation system. In this paper, statistical properties of the Round Trip Timedelay (RTT) are investigated...
The variable time delay and the packet loss degrade the performance of Internet based teleoperation system seriously, even make the system unstable. To overcome the trouble, an idea that using CARIMA model of the linearized slave robot to design a controller based on the Generalized Predictive Control (GPC) method is proposed in this paper. We place the GPC controller at the remote site. First of...
In this paper, we present a predictive strategy for teleoperating via communication channel with unknown and variable time delay, where the remote robot is compensated to be a linear system. According to the state received from remote plant and the local predictor, a discrete-time device called path governor(PG) generates on line a suitable time-parameterization of the path to be tracked, by solving...
In recent years, the Internet-based teleoperation control has become a research focus. Compared with single robot, multi-robot system can be applied to many fields. It has the ability to complete the complicated tasks more rapidly and effectively. The combination form of the Internet-based multi-robot teleoperation system has attracted the widespread attention. However, due to the existence of the...
With the rapid development of information technology, the Internet has evolved from a simple data-sharing media to an amazing information world where people can enjoy various services. Recently, the use of the Internet has been expanded to the field of automation, i.e., using the Internet as a tool to control equipment located at remote sites. This work presents a system that enables multiple operators...
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