Hybrid system simulation of computer control applications over communication networks


Autoria(s): Tian, Guosong; Fidge, Colin J.; Tian, Yu-Chu
Data(s)

2009

Resumo

Discrete event-driven simulations of digital communication networks have been used widely. However, it is difficult to use a network simulator to simulate a hybrid system in which some objects are not discrete event-driven but are continuous time-driven. A networked control system (NCS) is such an application, in which physical process dynamics are continuous by nature. We have designed and implemented a hybrid simulation environment which effectively integrates models of continuous-time plant processes and discrete-event communication networks by extending the open source network simulator NS-2. To do this a synchronisation mechanism was developed to connect a continuous plant simulation with a discrete network simulation. Furthermore, for evaluating co-design approaches in an NCS environment, a piggybacking method was adopted to allow the control period to be adjusted during simulations. The effectiveness of the technique is demonstrated through case studies which simulate a networked control scenario in which the communication and control system properties are defined explicitly.

Formato

application/pdf

Identificador

http://eprints.qut.edu.au/27660/

Publicador

IEEE Computer Society

Relação

http://eprints.qut.edu.au/27660/1/c27660.pdf

http://mascots2009.doc.ic.ac.uk/

Tian, Guosong, Fidge, Colin J., & Tian, Yu-Chu (2009) Hybrid system simulation of computer control applications over communication networks. In Proceedings of the 17th Annual Meeting of the IEEE/ACM International Symposium on Modelling, Analysis and Simulation of Computer and Telecommunication Systems, 21-23 September 2009, Imperial College, London.

Direitos

Copyright 2009 IEEE CS Press

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Fonte

Faculty of Science and Technology

Palavras-Chave #080503 Networking and Communications #Networked Control Systems #Computer network simulations
Tipo

Conference Paper