Synchronization Improvement of Distributed Clocks in EtherCAT Networks
| Autor: | Sung-Mun Park, Hongju Kim, Hyoung-Woo Kim, Chang Nho Cho, Joon-Young Choi |
|---|---|
| Rok vydání: | 2017 |
| Předmět: |
Computer science
business.industry Real-time computing Clock drift Matrix clock 020206 networking & telecommunications EtherCAT 02 engineering and technology Propagation delay Synchronization Clock synchronization 020202 computer hardware & architecture Computer Science Applications Clock domain crossing Modeling and Simulation Embedded system Synchronization (computer science) 0202 electrical engineering electronic engineering information engineering Master clock Self-clocking signal Electrical and Electronic Engineering business |
| Zdroj: | IEEE Communications Letters. 21:1277-1280 |
| ISSN: | 1089-7798 |
| DOI: | 10.1109/lcomm.2017.2668400 |
| Popis: | The aim of this letter is to improve the performance of clock synchronization in EtherCAT networks. Although EtherCAT synchronizes the slave clocks to the reference clock using a distributed clock synchronization mechanism, a synchronization error still exists between them. We propose a method to estimate and significantly reduce this error. In addition, we implement the method within the existing synchronization mechanism without adding an excessive computational load. The experimental results for synchronization performance verify that the proposed method improves the accuracy of clock synchronization in EtherCAT networks. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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