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刘攀, 王志国, 刘建峰, 闵康磊, 游红俊. “嫦娥五号”载荷数据存储管理方法[J]. 深空探测学报(中英文), 2021, 8(3): 299-305. DOI: 10.15982/j.issn.2096-9287.2021.20210001
引用本文: 刘攀, 王志国, 刘建峰, 闵康磊, 游红俊. “嫦娥五号”载荷数据存储管理方法[J]. 深空探测学报(中英文), 2021, 8(3): 299-305. DOI: 10.15982/j.issn.2096-9287.2021.20210001
LIU Pan, WANG Zhiguo, LIU Jianfeng, MIN Kanglei, YOU Hongjun. A Payload Data Storage and Management Method for Chang’E-5[J]. Journal of Deep Space Exploration, 2021, 8(3): 299-305. DOI: 10.15982/j.issn.2096-9287.2021.20210001
Citation: LIU Pan, WANG Zhiguo, LIU Jianfeng, MIN Kanglei, YOU Hongjun. A Payload Data Storage and Management Method for Chang’E-5[J]. Journal of Deep Space Exploration, 2021, 8(3): 299-305. DOI: 10.15982/j.issn.2096-9287.2021.20210001

“嫦娥五号”载荷数据存储管理方法

A Payload Data Storage and Management Method for Chang’E-5

  • 摘要: 针对“嫦娥五号”轨道器多载荷数据调度、存储复接、存储管理和高可靠性高要求,设计了基于NAND Flash芯片的数据复接及存储模块管理方案。采用具有抗辐照特性的Axcelerator系列反熔丝现场可编程门阵列(Field-Programmable Gate Array,FPGA)芯片作为主控制芯片,用于对多路载荷数据的调度管理和存储控制,采用大容量NAND Flash芯片用于对多种载荷和星上遥测的存储管理,实现了对多个数据源按要求进行数据记录、数据管理以及数据回放等功能。“嫦娥五号”任务在轨结果表明,经过数传帧编码以及可变速率回放,实现了深空探测对数据复接存储回放的要求,为后续深空探测数据的高速下传提供参考。

     

    Abstract: According to the requirements of multi-load data scheduling, storage multiplexing, storage management and high reliability of lunar exploration project, a management scheme of large-capacity data multiplexing storage module based on NAND Flash chip is designed. Axcelerator series anti-fuse FPGA chip with anti-radiation characteristics is used as the main control chip for scheduling management and storage control of multi-channel load data, and large-capacity NAND Flash chip is used for storage management of multiple loads and on-board telemetry, which realizes the functions of data recording, data management and data playback for multiple data sources as required. The practice results show that the requirements of data multiplexing, storage and playback for deep space exploration can be realized through data transmission frame coding and variable rate playback, which provides reference for the high-speed data downloading for subsequent deep space exploration.

     

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