TY - GEN
T1 - Measurement of the AFDX switch latency based on FPGA
AU - Guo, Qingpeng
AU - Feng, Renjian
AU - Wu, Yinfeng
AU - Yu, Ning
N1 - Publisher Copyright:
© 2016 IEEE.
PY - 2016/11/17
Y1 - 2016/11/17
N2 - 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.
AB - 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.
UR - https://www.scopus.com/pages/publications/85006825666
U2 - 10.1109/AUS.2016.7748018
DO - 10.1109/AUS.2016.7748018
M3 - 会议稿件
AN - SCOPUS:85006825666
T3 - AUS 2016 - 2016 IEEE/CSAA International Conference on Aircraft Utility Systems
SP - 45
EP - 49
BT - AUS 2016 - 2016 IEEE/CSAA International Conference on Aircraft Utility Systems
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 2016 IEEE/CSAA International Conference on Aircraft Utility Systems, AUS 2016
Y2 - 10 October 2016 through 12 October 2016
ER -