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Measurement of the AFDX switch latency based on FPGA

  • Beihang University

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

AFDX (Avionics Full Duplex Switch Ethernet) is an aviation data bus, which is developed on the basis of Ethernet. Whether the data communication is deterministic concerns the airworthiness of AFDX, so this paper discusses the end-To-end delay in AFDX network especially the switch latency. To a great extent, the delay characteristic of the AFDX switch affects the determination of network transmission. We propose an effective and novel scheme based on FPGA, which could measure the switch latency of the specified VLs precisely. By implementing the TDC in FPGA, it could measure the time interval without external GPS time. A measurement system is completely built up and tested. The experimental results show this system has high stability and its accuracy is much higher than 1us.

Original languageEnglish
Title of host publicationAUS 2016 - 2016 IEEE/CSAA International Conference on Aircraft Utility Systems
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages45-49
Number of pages5
ISBN (Electronic)9781509010875
DOIs
StatePublished - 17 Nov 2016
Event2016 IEEE/CSAA International Conference on Aircraft Utility Systems, AUS 2016 - Beijing, China
Duration: 10 Oct 201612 Oct 2016

Publication series

NameAUS 2016 - 2016 IEEE/CSAA International Conference on Aircraft Utility Systems

Conference

Conference2016 IEEE/CSAA International Conference on Aircraft Utility Systems, AUS 2016
Country/TerritoryChina
CityBeijing
Period10/10/1612/10/16

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