1. 中国科学院 机构 微小卫星创新研究院,上海,201203
2. 上海微小卫星工程中心 机构,上海,201203
纸质出版:2021
移动端阅览
石龙龙, 林宝军, 王正凯, 祁见忠, 涂珍贞. 基于龙芯的高可靠性卫星数据处理系统[J]. 微电子学与计算机, 2021, 38(7): 25-29.
SHI Longlong, LIN Baojun, WANG Zhengkai, et al. High reliability data processing system of satellite based on Godson[J]. 2021, 38(7): 25-29.
为满足长寿命中高轨卫星对数据处理系统的可靠性和系统更新能力的高要求,提出了基于龙芯的高可靠性数据处理系统设计方案.系统以"龙芯+双NorFlash"为硬件架构,设计软件在轨重构方案,采用双冗余总线子板交叉备份设计.实现了系统软件可在轨重构升级,并且显著提高系统可靠性.该系统在MEO卫星上进行了在轨验证.通过在轨运行数据分析,验证了设计的有效性和高可靠性.
High reliability and system updating ability of data processing system are required for long-life medium high orbit satellite. a high reliability data processing system based on Godson is proposed. The system takes "Godson + double NorFlash" as the hardware architecture
designs the software reconstruction scheme on orbit
and adopts the cross backup design of sub boards based on dual redundant bus. The system software can be reconstructed and upgraded on orbit
and the system reliability is significantly improved. The system has been verified in orbit on some MEO satellites. The effectiveness and high reliability of the design are verified through the analysis of the on orbit operation data.
徐帅, 林宝军, 刘迎春, 等. 基于龙芯宇航级芯片的BSP开发和移植[J]. 计算机工程与科学, 2002, 42(4): 571-579. DOI:10.3969/j.issn.1007-130X.2020.04.001. XU S, LIN B J, LIU Y C, et al. Development and transplantation of BSP based on Godson aerospace chip[J]. Computer Engineering % Science, 2002, 42(4): 571-579. DOI:10.3969/j.issn.1007-130X.2020.04.001.
王战强, 翟盛华. 星载处理设备软件在轨重构技术研究[J]. 空间电子技术, 2013, 10(1): 7-13. DOI:10.3969/j.issn.16 74- 7135.2013.01.002. WANG Z Q, ZHAI S H. Research on software on-orbit reconfiguration of space-borne processing equipment[J]. Space Electronic Technology, 2013, 10(1): 7-13. DOI:10.3969/j.issn.16 74- 7135.2013.01.002.
吕岩. 一种低成本高可靠的星载计算机存储器容错方法[J]. 空间控制技术与应用, 2020, 46(3): 66-71. DOI:10.3969/j.issn.1674-1579.2020.03.010. LV Y. A fault-tolerant method for space computer memory with low-cost and high-reliability[J]. Aerospace Control and Application, 2020, 46(3): 66-71. DOI:10.3969/j.issn.1674-1579.2020.03.010.
Beijing 中国科学院计算技术研究所. 龙芯1E处理器用户手册[M]. 北京: 龙芯中科技术有限公司, 2017. Institute of Computing Technology, Chinese Academy of Sciences. User manual for Godson 1E processor[M]. Beijing: Loongson Zhongke Technology Co, Ltd, 2017.
黄超, 陈勇, 林宝军. 基于抗辐照龙芯的星载计算机容错启动研究[J]. 计算机科学, 2016, 43(11A): 532-535. DOI: 532 HUANG C, CHEN Y, LIN B J. Research of fault-tolerant booting for on-board computer based on anti-radiation Loongson[J]. Computer Science, 2016, 43(11A): 532-535. DOI: 532
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