On the Evaluation of Clock Synchronization Methods for Networked Control Systems
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26230%2F13%3APU106376" target="_blank" >RIV/00216305:26230/13:PU106376 - isvavai.cz</a>
Result on the web
<a href="http://www.fit.vutbr.cz/research/pubs/all.php?id=10371" target="_blank" >http://www.fit.vutbr.cz/research/pubs/all.php?id=10371</a>
DOI - Digital Object Identifier
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Alternative languages
Result language
angličtina
Original language name
On the Evaluation of Clock Synchronization Methods for Networked Control Systems
Original language description
A distribute control requires to maintain time synchronization with a degree of precision depending on a particular application domain. Many large distributed systems employ Ethernet or even full TCP/IP stack for communication. Two prevalent protocols are used for clock synchronization in these networks, in particular, Network Time Protocol (NTP) and Precise Time Protocol (PTP). In this short paper, we present a method for practical performance evaluation of clock synchronization within a distributed environment based on the QNX real time operating system. For the measurement we consider nodes that are assumed to produce synchronous signals. The results of measurement provide a hint on the degree of synchronization that can be practically reached among the set of distributed devices. To be able to perform NTP and PTP benchmarking, we ported PTPd Unix/Linux implementation to QNX operating system. We prepared an environment to compare NTP and PTP behavior in different network topologies and under different network load characteristic. The main contribution of this paper is to provide an overview of a method for practical evaluation of synchronization methods for a distributed control system. We present some preliminary results from the measurement. A complete result set may be used, e.g., for defining a performance estimation function in a platform-based design methods.
Czech name
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Czech description
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Classification
Type
D - Article in proceedings
CEP classification
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OECD FORD branch
10201 - Computer sciences, information science, bioinformathics (hardware development to be 2.2, social aspect to be 5.8)
Result continuities
Project
<a href="/en/project/TA01010632" target="_blank" >TA01010632: SCADA System for Real-time Control and Monitoring of Processes</a><br>
Continuities
Z - Vyzkumny zamer (s odkazem do CEZ)<br>S - Specificky vyzkum na vysokych skolach
Others
Publication year
2013
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Article name in the collection
3rd Eastern European Regional Conference on the Engineering of Computer-Based Systems
ISBN
978-0-7695-3759-7
ISSN
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e-ISSN
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Number of pages
2
Pages from-to
10-12
Publisher name
IEEE Computer Society
Place of publication
New York
Event location
Budapest
Event date
Aug 29, 2013
Type of event by nationality
EUR - Evropská akce
UT code for WoS article
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