摘要
针对航天器数据存储需求多样化的发展趋势,提出了应用SpaceWire网络的分布式存储系统设计。系统由控制模块和存储模块组成,为航天器载荷设备提供标准SpaceWire物理层、链路层接口,并在网络层提供统一的虚拟数据接口,通过逻辑地址进行标志和寻址,可屏蔽系统内部网络细节;载荷设备不必关注存储系统内部网络结构的变化,当部分模块故障时,可重新规划传输路径,对分布式存储系统进行重构,实现系统控制和数据存储功能的迁移。与存储需求相近、配置双固态存储系统的设计相比,其接口种类、协议设计更加简化,且系统重构方面的优势更为明显。
In view of the development trend of spacecraft data storage requirement diversification, the design of distributed storage system using SpaceWire network is presented. The system is made up of control modules and store modules, and can provide standard SpaceWire interface in physical layer and link layer, and virtual data interface in network layer. It may be identified and addressing with logical address, so the internal network details can be blocked and the payloads in the spacecraft need not to know the change of the network structure of the storage system. When any module fails, the transmission path can be rescheduled to realize the migration of system control and data storage functions. Compared with the design with similar storage requirements and dual-solid-state storage system, the interface type and protocol design of distributed storage system described in this paper are simpler, and with the obvious advantage of system reconfiguration.
作者
穆强
牛跃华
于俊慧
李欣
袁珺
高何
MU Qiang;NIU Yuehua;YU Junhui;LI Xin;YUAN Jun;GAO He(Beijing Institute of Spacecraft System Engineering, Beijing 100094, China)
出处
《航天器工程》
CSCD
北大核心
2019年第2期78-84,共7页
Spacecraft Engineering
基金
国家重大航天工程
