Yao Xinyu

International Journal of Intelligent Systems and Applications (IJISA)

IJISA Vol. 2, No. 2, 8 Dec. 2010

Cover page and Table of Contents: PDF (size: 533KB)

Time Synchronization under 1PPS Signal in Distributed Real-time Simulation System

Full Text (PDF, 533KB), PP.48-55

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Author(s)

Yao Xinyu ^1,*

1. Institute of Automation, College of Mechatronic Engineering and Automation, National University of Defense Technology,ChangSha, Hunan, 410073, P.R.China

* Corresponding author.

DOI: https://doi.org/10.5815/ijisa.2010.02.07

Received: 24 Apr. 2010 / Revised: 23 Jul. 2010 / Accepted: 2 Oct. 2010 / Published: 8 Dec. 2010

Index Terms

Synchronization, 1PPS, real-time, SNTP, Arena, disturbance

Abstract

Time synchronization is one of the key points in distributed of a real-time simulation system. At first, a distributed simulation system is introduced. Secondly, time synchronization method under 1PPS signal is put forth. Thirdly, the relevant technology of time synchronization are studied, including system structure, SNTP, 1PPS signal and control logic. Vxworks watch dog timer mode and timecard counter mode under this method are also analyzed in detail and the precision is presented. Fourthly, Arena software is chosen to model and simulate the time synchronization procedure. At last, the whole simulation model is constructed and the experiment results are given out to prove the efficiency of the synchronization method.

Cite This Paper

Yao Xinyu,"Time Synchronization under 1PPS Signal in Distributed Real-time Simulation System", International Journal of Intelligent Systems and Applications(IJISA), vol.2, no.2, pp.48-55, 2010. DOI: 10.5815/ijisa.2010.02.07

Reference

[1] Dedicated Systems, “RTOS Evaluation Project: VXWORKS/X86 5.3.1” http://www.dedicatedsystems.com, June 2001.

[2] D. Mills, Network Time Protocol (NTP) Version3 Specification, Implementation and Analysis, RFC1305.

[3] D. Mills, Simple Network Time Protocol (SNTP) Version 4 for Ipv4, Ipv6 and OSI, RFC2030.

[4] Yao, Xinyu, “Application and Research of Architecture of Distributed Real-time simulation System Based on KDDRT”, Computer Simulation Supplement, August 2009.

[5] Mills D L, Modeling and Analysis of Computer Network Clocks, Electrical Engineering Department Report 92-5-2, University of Delaware, USA, 1992.

[6] W.David Kelton, “Simulation with Arena, Third Edition”, The McGraw-Hill Companies, Inc.2004.

[7] Yao,Xinyu, “Time Synchronization under 1PPS Signal with Synthetic Disturbance”, LEITS 2010 , Wuhan, China, 2010, PP.151-154.