By Topic

A Virtual-Queuing-Based Algorithm for Delay Evaluation in Networked Control Systems

Sign In

Cookies must be enabled to login.After enabling cookies , please use refresh or reload or ctrl+f5 on the browser for the login options.

Formats Non-Member Member
$31 $13
Learn how you can qualify for the best price for this item!
Become an IEEE Member or Subscribe to
IEEE Xplore for exclusive pricing!
close button

puzzle piece

IEEE membership options for an individual and IEEE Xplore subscriptions for an organization offer the most affordable access to essential journal articles, conference papers, standards, eBooks, and eLearning courses.

Learn more about:

IEEE membership

IEEE Xplore subscriptions

3 Author(s)
Addad, B. ; Automated Production Res. Lab., Ecole Normale Super. de Cachan, Cachan, France ; Amari, S. ; Lesage, J.

In this paper, an approach to evaluate time performances of networked control systems (NCSs) is presented. Switched Ethernet with a client/server protocol is considered for communication. As a result, the reactivity of these NCSs is not only affected by the network delays but also by the field-device due delays. Obviously, all of them have to be taken into account to evaluate efficiently the NCS reactivity. Thus, by including some preliminary results, we propose an overall study in an effort to achieve this aim. First, we model the traffic of the NCS and provide formal proofs to characterize the scenarios leading to the worst delays. Subsequently, we develop a virtual-queuing-based algorithm (VQA) to search these scenarios and deduce the corresponding delays. Through a practical case study, it is shown how VQA fits experimental observations both quantitatively and qualitatively.

Published in:

Industrial Electronics, IEEE Transactions on  (Volume:58 ,  Issue: 9 )