The study of Smith prediction controller in NCS based on time-delay identification

Under the environment of network, the second-order inertial object is controlled when the single-packet transmission and no data packet dropout, the goal of this paper is to design controller of numeric PID without network delay that satisfy relevant performance and stabilizability when network-induced delay is included. The dynamic Smith controller and on-line time-delay identification are used; the specified methods of Smith parameter are purposed when the network delay is greater or less sample time and satisfy the given index. It can be used as the base for fuzzy compensation controller under multiple-packet and data packet dropout.