| 星载嵌入式文件系统技术研究及实现 |
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| 引用本文： | 许浩,李向阳,刘泳.星载嵌入式文件系统技术研究及实现[J].航天器工程,2007,16(5):41-46. |
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| 作者姓名： | 许浩 李向阳 刘泳 |
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| 作者单位： | 山东航天电子技术研究所,烟台,264000 |
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| 基金项目： | “十一五”民用航天预研课题(编号:B1120060329) |
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| 摘 要： | 介绍了一种面向空间应用的嵌入式文件系统的设计要点,着重说明了采用B 树组织文件、锁链方式组织元数据以及低资源占用的空间分配回收机制三个方面问题。自主开发的文件系统较好地解决了NAND型Flash存储芯片作为星载存储设备所遇到的磨损均衡、存储空间使用效率的问题,能够更好地支持星载数据的文件化存储管理和可靠传输。
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| 关 键 词： | 嵌入式文件系统 B 树 锁链块 均衡磨损 |
| 文章编号： | 1673-8748(2007)05-0041-06 |
| 修稿时间： | 2007年4月30日 |
Investigation and Implementation of Embedded File System Technology for Space Application |
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| XU Hao,LI Xiangyang,LIU Yong.Investigation and Implementation of Embedded File System Technology for Space Application[J].Spacecraft Engineering,2007,16(5):41-46. |
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| Authors: | XU Hao LI Xiangyang LIU Yong |
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| Abstract: | A file system used for space application is designed. To meet the needs of space application, we adopt B -tree to manage files and chain blocks to manage meta-data, and have developed a low resource occupied memory's allocation and callback mechanism. By comparing with the other generic embedded file system, we resolved the problems on average erasure and memory use efficiency, which the flash memory chip of NAND type usually met in space application, and well supported onboard-data file management and reliable transmission. |
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| Keywords: | embedded file system B -tree chain block average erasure |
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