New Instrumentation Research Findings from Yanshan University Published.

According to recent research published in the journal IEEE Transactions on Instrumentation and Measurement, "This paper addresses the controller design problem for teleoperation over networks such as the Internet. The forward and backward network transmission time delays are assumed to be asymmetric and time varying, which is the case for computer network communications."

"We propose a novel master-slave controller, which renders the entire system stable with relatively good steady-and transient-state performances. The relations among the parameters of the controller and the allowable maximum time delays are built in the form of linear matrix inequality. The designed controller is extended to the case that the velocity information is not available. A high-gain observer is designed to estimate the velocities of the master and slave joints online, and the controller is constructed on the basis of the estimated velocities. The stability of the closed-loop system is proved," wrote C.C. Hua and colleagues, Yanshan University.

The researchers concluded: "Both simulations and experiments are performed to verify the correctness and effectiveness of the proposed method."

Hua and colleagues published their study in IEEE Transactions on Instrumentation and Measurement (Teleoperation Over the Internet With/Without Velocity Signal. IEEE Transactions on Instrumentation and Measurement, 2011;60(1):4-13).

For additional information, contact C.C. Hua, Yanshan University, Institute Electrical Engineering, Qinhuangdao 066004, People's Republic of China.

The publisher's contact information for the journal IEEE Transactions on Instrumentation and Measurement is: IEEE-Institute Electrical Electronics Engineers Inc., 445 Hoes Lane, Piscataway, NJ 08855-4141, USA.

Keywords: City:Qinhuangdao, Country:People's Republic of China, Computer Network, Computers, Instrumentation Research, Network Communications, Networks

This article was prepared by Computer Weekly News editors from staff and other reports. Copyright 2011, Computer Weekly News via VerticalNews.com.