Method of Control Performance and Network QoS Co-design of Networked Control Systems
In this paper, the continuous-time control model is transferred to a digital form based on network QoS, such as network-induced delay and packet dropout, first, and then, the stability of the control system under the nonideal condition is discussed based on linear matrix inequalities (LMIs). Farther more the discrete-time quadratic performance index is revised to take network-induced delay into account. Base on the results above, a discrete Linear quadratic regulator (LQR) is designed and network QoS constraints is proposed to guarantee the performance of the control system. To satisfy the QoS constraints, a co-design method of control and scheduling is proposed to guarantee both networked control performance and network QoS. Finally, a series of experiments based on Truetime is present, and the results show that the scheme is effective and necessary.
performance of networked control system discrete LQR network QoS constraint bandwidth schedule co-design
Yun Niu Xuguang Wu Jun Kang Junhong He
School of Marine Engineering, Northwestern Polytechnical University, Xi’an, 710072 School of Information Engineering, Chang’an University, Xi’an, 710064
国际会议
The 22nd China Control and Decision Conference(2010年中国控制与决策会议)
徐州
英文
108-113
2010-05-26（万方平台首次上网日期，不代表论文的发表时间）