A Practical Implementation of IEEE 1588-2008 Transparent Clock for Distributed Measurement and Control Systems

This paper addresses issues with time synchronization using the IEEE 1588-2008 for distributed measurement and control systems. A practical implementation of the transparent clock is presented with the overall system architecture and detailed operation of each building block. To verify the submicros...

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Bibliographic Details
Published in:IEEE transactions on instrumentation and measurement 2010-02, Vol.59 (2), p.433-439
Main Authors: Han, Jiho, Jeong, Deog-Kyoon
Format: Article
Language:English
Subjects:
Blocking
Clocks
Control systems
Delay
Distributed control
Distributed systems
Errors
Ethernet
Ethernet networks
IEEE 1588
Instrumentation
networked measurement
Protocols
Switches
Synchronization
Telecommunication traffic
Time measurement
Time synchronization
Traffic control
transparent clock (TC)
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Summary:This paper addresses issues with time synchronization using the IEEE 1588-2008 for distributed measurement and control systems. A practical implementation of the transparent clock is presented with the overall system architecture and detailed operation of each building block. To verify the submicrosecond accuracy using the implemented devices, an experimental setup that was analogous to a practical distributed system has been built. Measured results from the experiment show that the time error is limited below 30 ns for nodes that were connected by three switches. It is remarkable that the results are observed in spite of large packet queuing delays that were introduced by a traffic generator. The discussion on sources of time error that was outlined here provides technical considerations to designing IEEE 1588 systems.
ISSN:0018-9456
1557-9662
DOI:10.1109/TIM.2009.2024371