面向载人月球探测的确定性以太网应用研究  

Research on the Deterministic Ethernet Application for Manned Lunar Exploration

作　　者：陈朝基 孙寅涵 孙志刚[3] 王丹 何熊文[2] 程博文[2] 刘岩 訚耀保[1] CHEN Chaoji;SUN Yinhan;SUN Zhigang;WANG Dan;HE Xiongwen;CHENG Bowen;LIU Yan;YIN Yaobao(School of Mechanical Engineering,Tongji University,Shanghai 201804,China;Beijing Institute of Spacecraft System Engineering,Beijing 100094,China;School of Computer,National University of Defense Technology,Changsha 410073)

机构地区：[1]同济大学机械与能源工程学院,上海201804 [2]北京空间飞行器总体设计部,北京100094 [3]国防科技大学计算机学院,长沙410073

出　　处：《宇航学报》2024年第1期142-153,共12页Journal of Astronautics

摘　　要：确定性以太网(时间触发以太网和时间敏感网络)是在传统以太网上增加时间同步、时间感知整形等机制,能够提供高可靠低时延的确定性通信服务的技术。确定性以太网在航天器中的应用,可以解决现有总线难以满足未来空间系统架构开放性、数据处理实时性和数据传输可靠性等应用需求的问题。对确定性以太网技术产生的背景、技术原理和发展现状进行分析,提出一种“先融合后增强”的推进步骤,即由时间触发以太网和时间敏感网络融合的架构逐步过渡到完整的时间敏感网络架构,为我国未来航天器信息系统数据总线的设计和实现提供思路。Deterministic Ethernet(Time-Triggered Ethernet and Time-Sensitive Networking)is a technology that adds time synchronization and time-aware shaping to traditional Ethernet to provide deterministic communication services with high reliability and low latency.The application of deterministic Ethernet in spacecraft can solve the problem that the existing bus is difficult to meet the requirements of future space applications such as system architecture openness,real-time data processing and data transmission reliability.This paper analyzes the background,technical principle and development status of deterministic Ethernet technology,and proposes a“first fusion and then enhancement”promotion step,that is,the integrated architecture of Time-Triggered Ethernet and Time-Sensitive Networking is gradually transitioned to a complete Time-Sensitive Networking architecture,which provides ideas for the design and implementation of China’s future spacecraft information system data bus.

关 键 词：载人月球探测 航天器 空间数据总线 确定性以太网 时间触发以太网 时间敏感网络 

分 类 号：TP393[自动化与计算机技术—计算机应用技术] V443.1[自动化与计算机技术—计算机科学与技术]