Actively compensating for data packet disorder in networked control systems

Authors:
Yun-Bo Zhao;Guo-Ping Liu;David Rees
Affiliations:
Division of Biomedical Engineering, University of Glasgow, Glasgow, UK and Faculty of Advanced Technology, University of Glamorgan, Pontypridd, UK;Faculty of Advanced Technology, University of Glamorgan, Pontypridd, UK and CTGT Centre, Harbin Institute of Technology, Harbin, China;Faculty of Advanced Technology, University of Glamorgan, Pontypridd, UK
Venue:
IEEE Transactions on Circuits and Systems II: Express Briefs
Year:
2010

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Abstract

Data packet disorder often occurs in networked control systems (NCSs), which, however, has not been taken into account in most literature to date. In this brief, the cause and effect of data packet disorder are analyzed, and an active compensation scheme is proposed to compensate for it. The proposed scheme is flexible to admit all the existing control approaches to be used and also derives a novel closed-loop system model of NCSs, which enables more reasonable and effective theoretical analysis of NCSs. The effectiveness of the proposed active compensation scheme is illustrated by a numerical example.