International Journal of Wireless and Microwave Technologies(IJWMT)

ISSN: 2076-1449 (Print), ISSN: 2076-9539 (Online)

Published By: MECS Press

IJWMT Vol.1, No.2, Apr. 2011

Research of NCS Real-time Performance with Judging Priority Based on Generalized Stability

Full Text (PDF, 165KB), PP.26-32

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Hengrong LU

Index Terms

Networked Control System, network stability, real-time Ethernet, real-time performance


The conceptions of generalized stability and priority judgment function of real-time node which guaranteed the generalized stability were put forward aiming at the problem of Networked Control System (NCS) real-time performance based on shared Ethernet. From the perspective of control theory and communication theory, generalized stability and priority judgment function were applied into Real-time ETHERnet (RETHER) by using real-time performance improving method of avoiding collision based on protocol in Ethernet communication protocol. Therefore, token was passed to the real-time node with highest priority and real-time data was sent, NCS real-time performance was improved. Finally, simulation results demonstrate the effectiveness of the proposed method.

Cite This Paper

Hengrong LU,"Research of NCS Real-time Performance with Judging Priority Based on Generalized Stability", IJWMT, vol.1, no.2, pp.26-32, 2011.


[1]Q. Zong, "Class of networked control systems design under medium access constraints," System Engineering and Electronics, Vol. 29, No. 5, pp. 778-781, May 2007.

[2]Y. Y. Chen, "Research and application of Ethernet in networked control system," M. S. thesis, Power Electronic and Power Drive, Xihua Unv., Sichuan, China, 2007.

[3]J. Liu, W. Wei, "Study on maximum network delay of switched Ethernet with different network structure," Process Automation Instrumentation, Vol. 27, No. 10, pp. 19-22, October 2006.

[4]G. Shen, X. M. Xu, X. He, "A new industrial Ethernet media access control protocol," Journal of Shanghai Jiaotong University, Vol. 20, No. 4, April 2002.

[5]C. Venkatramani, T. Chiueh, "Supporting real-time traffic on Ethernet," Proc of Real-time System Symposium, 1994.

[6]X. Q. Miao, "Exposition of six type of communication protocols of real-time ethernet," Process Automation Instrumentation, Vol. 26, No. 4, pp. 1-6, April 2005.

[7]L. Chen, D. Q. Feng, J. X. Jin, J. Chu, "Study on real-time characteristics of Ethernet in industrial application" Journal of Zhejiang University, Vol.38, No. 6, pp. 670-675, 2004.