大型载人航天器数据存储服务系统设计与应用  

Design and Application of Data Storage Service System for Large Manned Spacecraft

作　　者：李耀楠 田巍 郝维宁 刘雷 LI Yaonan;TIAN Wei;HAO Weining;LIU Lei(Beijing Institute of Spacecraft System Engineering,Beijing 100094,China;Beijing Research Institute of Telemetry,Beijing 100094,China)

机构地区：[1]北京空间飞行器总体设计部,北京100094 [2]北京遥测技术研究所,北京100076

出　　处：《航天器工程》2024年第3期9-15,共7页Spacecraft Engineering

摘　　要：针对载人航天器数据规模大、多源并发存储、平台安全性要求高、长期在轨运行的特点,文章提出了一种适用于大型载人航天器的数据存储服务系统通用架构。介绍了数据存储服务系统应用的多项关键技术,采用元数据分离方法实现了任意数量和任意类型关键数据的存储和回放,通过数据同步和电气隔离等设计方法使系统具备在轨维修更换的能力,采用存储空间映射的方法实现对非易失闪烁存储器(FLASH)坏块故障的屏蔽,保证了长期工作时数据存储的高可靠性。提出的数据存储服务系统服务于在轨应用,验证了设计的可行性,可为后续航天器数据存储系统的设计提供参考。In response to the characteristics of large scale data,multi-source concurrent storage,high platform security requirements,and long-time in orbit operation of manned spacecraft,a general architecture of data storage service system applicable to large manned spacecraft is proposed in this paper.The paper also introduces several key technologies used in data storage service system,which adopts the metadata separation method to realize the storage and playback of any amount and type of critical data.Through design methods such as data synchronization and electrical isolation,the system has the ability of on-orbit maintenance and replacement.The method of storage space mapping is adopted to shield FLASH bad block faults,which ensures the high reliability of data storage during long-term operation.The data storage service system proposed in the paper serves the on-orbit application,verifying the feasibility of the design and providing reference for the design of the subsequent data storage service system applicable to manned spacecraft.

关 键 词：大型载人航天器 数据存储服务系统 坏块管理 在轨维修性 

分 类 号：V447.2[航空宇航科学与技术—飞行器设计]