IEEE 802.1AS Precision Time Protocol Full Hardware Prototyping for Industrial IoT

被引：1
|
作者：
Sakaguchi, Naotaka [1 ]
Kawate, Ryusuke [2 ]
Nagai, Yukimasa [1 ]
机构：
[1] Mitsubishi Electr Corp, Informat Technol R&D Ctr, Kamakura, Kanagawa, Japan
[2] Mitsubishi Electr Corp, Commun Engn Ctr, Tokyo, Japan
来源：
2023 IEEE 20TH CONSUMER COMMUNICATIONS & NETWORKING CONFERENCE, CCNC | 2023年
关键词：
IEEE; 802.1AS; precision time protocol; time-sensitive networking; time synchronization;
D O I：
10.1109/CCNC51644.2023.10059981
中图分类号：
TP3 [计算技术、计算机技术];
学科分类号：
0812 ;
摘要：
Highly accurate time synchronization is increasingly required in many Industrial IoT devices, including synchronization among mobile base stations for 5G network system, video distribution, factory automation, and automotive in-vehicle networks. IEEE 802.1AS-2020, a profile for industrial and automotive networks that enables network synchronization on the order of microseconds or less, has attracted much attention. This standard, however, is specified with software processing in mind, and makes it difficult to build systems with very high accuracy. This paper presents the performance evaluation of IEEE 802.1AS-2020 using our hardware prototype implemented on Industrial IoT devices. Our proposed hardware method achieves highly accurate time synchronization for precision time protocol with a target of 50 ns and a fluctuation within +/- 20 ns.
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