大型载人航天器载荷数据传输系统设计  

Design of Payload Data Transmission System of Large Manned Spacecraft

作　　者：刘彦伟 赵振昊 杨佳欣 易予生 LIU Yanwei;ZHAO Zhenhao;YANG Jiaxin;YI Yusheng(Beijing Institute of Spacecraft System Engineering,Beijing 100094,China)

机构地区：[1]北京空间飞行器总体设计部,北京100094

出　　处：《航天器工程》2023年第5期91-97,共7页Spacecraft Engineering

摘　　要：针对大型载人航天器舱内/舱外试验载荷多、试验数据量大、数据传输要求高的特点,提出基于光纤以太网技术的载荷数据传输系统设计方法,分为骨干传输层和汇聚接入层,采用双环+树形的网络拓扑结构,配置千兆、万兆以太网光纤接口,通过光缆与各试验载荷相连,为大型载人航天器舱内/舱外各类试验载荷提供高速数据传输和下行通道服务。经过在轨飞行应用,表明基于光纤以太网的载荷数据传输系统设计方法合理、可行,为大型载人航天器持续滚动开展较大规模的空间科学实验与技术试验提供了有力保证。In response to the characteristics of high test payloads,large amount and high data transmission requirements in/out of large manned spacecraft,a design of payload data transmission system based on fiber optic Ethernet technology is proposed,which is divided into a backbone transport layer and an aggregation access layer.It adopts network topology with dual-loop and tree shape and is configured with gigabit and 10-gigabit Ethernet fiber optic interfaces for payloads.The proposed payload data transmission system is an important part of large manned spacecraft,which can provide high-speed data transmissions and downlinks via fiber optic cable.After in-orbit test,it has been verified that the design method of payload data transmission system of large manned spacecraft is reasonable and feasible,can provide strong guarantee for the continuous rolling of large-scale space science experiments and technical experiments in large manned spacecraft.

关 键 词：载人航天器 有效载荷 光纤以太网 应用 

分 类 号：V443[航空宇航科学与技术—飞行器设计]