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Design of a Packet-Based Control Framework for Networked Control Systems

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3 Author(s)
Yun-Bo Zhao ; Fac. of Adv. Technol., Univ. of Glamorgan, Pontypridd ; Guo-Ping Liu ; Rees, D.

A packet-based control framework is proposed for networked control systems (NCSs). This framework takes advantage of the characteristic of the packet-based transmission in a networked control environment, which enables a sequence of control signals to be sent over the network simultaneously, thus making it possible to actively compensate for the communication constraints in NCSs. Under this control framework and a deriving delay-dependent feedback gain scheme, a novel model for NCSs is proposed which can deal with network-induced delay, data packet dropout and data packet disorder in NCSs simultaneously and a receding horizon controller is also designed to implement the packet-based control approach. This approach is then verified by a numerical example and furthermore an Internet-based test rig which illustrates the effectiveness of the proposed approach.

Published in:

Control Systems Technology, IEEE Transactions on  (Volume:17 ,  Issue: 4 )