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Design of High Precision Network Clock Synchronization Software Based on IEEE1588 Protocol

南京师范大学学报（工程技术版）[ISSN:1006-6977/CN:61-1281/TN]

Issue:
2013年04期
Page:
64-
Research Field:
Publishing date:

Info

Title:
Design of High Precision Network Clock Synchronization Software Based on IEEE1588 Protocol
Author(s):
Lü Qingsong; Wu Ning
College of Electronic Information Engineering,Nanjing University of Aeronautics and Astronautics,Nanjing 210016,China
Keywords:
network clock synchronization; IEEE 1588; SharpPcap; timestamp; sub-millisecond
PACS:
TP391.41
DOI:
-
Abstract:
Based on the analysis of principle IEEE 1588 protocol and the factors affecting the synchronization accuracy,a time synchronization approach on Windows platform is proposed in this paper,and the approach provides a feasible and effective solution for distributed network system clock accuracy synchronization.At present,the timestamp accuracy is at about 10 ms level obtained directly from the application layer on windows platform,while the system synchronization is at millisecond level.For the difficulties to obtain higher precision 1588 timestamp on windows platform,a timestamp processing module based on SharpPcap is designed.The proposed approach reaches a higher accuracy in the data link layer timestamp,thus improves the timestamp precision of the application layer.The experimental results show that the synchronization accuracy of the system master-slave clock achieves sub-millisecond level in this approach,which can meet the requirements of clock synchronization accuracy within millisecond in the power system.

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Last Update: 2013-12-30