基于NTP协议的车联网高精度时间同步系统解决方案探索

打开文本图片集
摘要:以国家智能网联汽车(武汉)测试示范区二期项目车联网时间同步系统建设经验为基础,系统进行了车端、路端、平台端的时间同步精度测试研究,并基于测量结果修订了时间同步系统方案,同时总结并提出了一套更高同步精度、更低成本、更易应用的时间同步系统方案。
关键词:时间同步;NTP;GNSS;车联网;时间精度
doi:10.3969/J.ISSN.1672-7274.2022.01.005
中图分类号:TP 212;U 495 文献标示码:A 文章编码:1672-7274(2022)01-0013-04
Solution Exploration of High Precision Time Synchronization System of Internet of Vehicles Based on NTP Protocol
WEI Yang, HANG Hui, XU Hong
(Chebai Intelligent Network Research Institute (Wuhan) Co., Ltd., Wuhan 430000, China)
Abstract: Based on the construction experience of vehicle networking time synchronization system of phase II project of national intelligent networked vehicle (Wuhan) test demonstration zone, this paper systematically tests and studies the time synchronization accuracy of vehicle end, road end and platform end, revises the time synchronization system scheme based on the measurement results, and summarizes and puts forward a set of time synchronization system with higher synchronization accuracy, lower cost More applicable time synchronization system scheme.
Key words: time synchronization; NTP; GNSS; vehicle networking; time accuracy
1 背景及意义
时间同步是指以中心控制系统的标准时钟作为基准使各分布系统和终端设备的时钟与中心控制系统时钟进行同步的过程。(剩余3768字)