Model-based control with intermittent feedback

Abstract

In this paper we apply the concept of Intermittent Feedback to a class of networked control systems known as Model-Based Networked Control Systems (MB-NCS). MB-NCS use an explicit model of the plant in order to reduce the network traffic while attempting to prevent performance degradation. In the previous body of work regarding MB-NCS, updates of the plant were given instantaneously; however, in this paper we consider the case where the loop remains closed for a finite length fixed interval before the control system returns to open-loop. We provide a full description of the output, as well as a necessary and sufficient condition for stability of the system. We also provide examples in order to illustrate the behavior indicated by the theory, and we show the advantages of the approach. Finally, we conclude the paper with discussions on possible future extensions.