一种基于软核的星上高速固存的文件管理方法

CN122152243BActive Publication Date: 2026-07-17WUHAN ZHUOMU TECH CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
WUHAN ZHUOMU TECH CO LTD
Filing Date
2026-05-06
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

Existing onboard storage systems lack file management mechanisms, have insufficient lifespan and reliability of metadata storage media, and lack the ability to recover from anomalies, making it difficult to meet the high reliability and high determinism requirements of spacecraft for high-speed data.

Method used

The fixed storage logical space is divided into a metadata fixed block area and a data block area. Multiple redundant metadata mirrors and a consistency decision mechanism are adopted to realize the integrated storage of metadata and data, support redundancy protection and fast consistency recovery, and optimize the index structure and block management by using a fixed block size and a preset number of directory files.

Benefits of technology

It achieves integrated storage of metadata and data, improves the reliability and recovery speed of the storage system, meets the spacecraft's requirements for efficient organization and playback of high-speed data, and ensures the controllability and determinism of resources.

✦ Generated by Eureka AI based on patent content.

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Abstract

本发明提出了一种基于软核的星上高速固存的文件管理方法,包括:将固存逻辑空间划分为元数据固定块区和数据块区,数据块区按固定块大小划分并以块号管理;在内存中建立超级块、目录表、文件表、空闲块链表及每个文件的文件块号序列;将上述结构序列化生成元数据镜像,写入元数据固定块区并保存多份冗余副本;上电恢复时,读取多份副本进行一致性判决,选取有效镜像解析,重建内存索引结构。本发明通过元数据与数据一体化存储,避免了传统方案中元数据存放于独立易损介质带来的寿命与可靠性风险;采用多副本冗余与一致性判决机制,实现掉电后快速恢复;通过内存索引的重建机制,确保文件系统状态与物理数据的一致性,提升了星上存储系统的可靠性。
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