Networked Control Systems: A Time-Delay Approach
2014 (English)In: 2014 European Control Conference (ECC), IEEE , 2014, 1434-1439 p.Conference paper (Refereed)
Networked control systems (NCSs) are spatially distributed systems for which the communication between sensors, actuators, and controllers is supported by a shared communication network. This paper gives an overview of the time-delay approach to NCSs. Firstly, the modelling on the Networked Control Systems (NCSs) with one sensor node is recalled. Then, for the NCSs with distributed sensor nodes and Round-Robin (RR) protocol, the closed-loop system can be presented as a switched system with multiple ordered delays. Next, a continuous-time hybrid system model for the closed-loop system, where time-varying delays appear in the dynamics and in the reset equations, is introduced to NCSs under RR and Try-Once-Discard (TOD) protocols. Lastly, the hybrid system modelling for the closed-loop system is extended to the discrete-time case. Differently from other approaches to NCSs in the presence of scheduling protocols (in the frameworks of hybrid and discrete-time systems), the time-delay approach allows the communication delays to be greater than the sampling intervals.
Place, publisher, year, edition, pages
IEEE , 2014. 1434-1439 p.
Networked control systems, time-delay, approach, scheduling, Lyapunov-Krasovskii method
IdentifiersURN: urn:nbn:se:kth:diva-163498DOI: 10.1109/ECC.2014.6862633ISI: 000349955701121ScopusID: 2-s2.0-84911483847ISBN: 978-3-9524269-1-3OAI: oai:DiVA.org:kth-163498DiVA: diva2:801300
13th European Control Conference, ECC 2014, Strasbourg Convention and Exhibition Center Place de Bordeaux Strasbourg, France, 24 June 2014 through 27 June 2014
QC 201504092015-04-092015-04-072015-04-09Bibliographically approved