The research and implementation of uncertain delay in networked control systems

As the Internet based networked control, long and uncertain time delay causes the performance of control system degrade quickly. This paper will model the generalized plant as an uncertain time delay linear discrete-time systems and employ the Lyapunov functional and linear matrix inequality to derive the stability condition and the sufficient condition of performance criterion. We also design and develop the Internet based arm wrestling contest control system by socket technology. And the implementation of NCSs indicates that the algorithm will improve performance of the networked control system.