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File-level synchronization method based on mobile storage devices

A mobile storage device and file-level technology, applied in special data processing applications, instruments, electrical digital data processing, etc., can solve problems such as data loss, poor convenience of use, and impact on data security, so as to improve work efficiency, The effect of ensuring safety

Inactive Publication Date: 2012-09-12
BEIJING UNIV OF POSTS & TELECOMM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The advantage is that the method is simple, but the disadvantage is that the file data of this method only exists in the original computer and the removable storage device, and the relevant file data does not exist on the local disk of other computers. If the original computer and the removable storage device are damaged, It will lead to data loss and affect the security of data; in addition, if there is no removable storage device, users have no way to operate files on other computers, so the convenience of use is not good.

Method used

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  • File-level synchronization method based on mobile storage devices
  • File-level synchronization method based on mobile storage devices

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Embodiment Construction

[0027] The present invention is described in more detail below in conjunction with accompanying drawing example:

[0028] The method of the present invention is characterized in that:

[0029] Assume that the user folder F to be synchronized on the source computer device contains m files, which are represented as f 1 , f 2 ,...,f m , and the hash values ​​corresponding to each file are denoted as h 1 、h 2 ,...,h m ;Set removable storage device c, synchronized folder F * All files included in

[0030] When the user inserts or ejects the removable storage device c on the computer device, for The synchronization program is file f in folder F in the computer i Generate a hash value h i , and with the file f stored in c i Compare the hash values ​​of each historical version, if the same hash value is not found, it means that the file f on the computer device i is the latest version, with file f i Replace the old version file on c Simultaneous hash value h i Save i...

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Abstract

The invention provides a file-level synchronization method based on mobile storage devices. The method aims at the problem of file synchronization backup among multiple computer equipment. The method records hash values of different historical versions of a file to judge whether a file version is new among multiple computers, and carries out update operation for the file according to the judging result. Thus, the goal of convenient and fast synchronization of file data among multiple computers is achieved, working efficiency of users is improved, and data security is guaranteed.

Description

(1) Technical field [0001] The invention relates to a file-level synchronization method based on a mobile storage device. (2) Background technology [0002] In recent years, with the popularization of computer equipment and the acceleration of work rhythm, many people use multiple computers to work at home, office, or other places. Multiple computers correspond to multiple hard disks, and also correspond to multiple folders. If manual synchronization is completely relied on mobile devices, it is easy to confuse the file versions on each computer as time goes by, and eventually lead to wrong data operations. , reducing work efficiency and affecting data security. Therefore, how to perform file synchronization backup is an urgent problem to be solved. [0003] File synchronization refers to the process of ensuring that folders located in different storage devices have the same content. If a new file is added, modified, or deleted in one storage device, the synchronization pr...

Claims

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Application Information

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IPC IPC(8): G06F17/30
Inventor 姚文斌叶鹏迪韩司
Owner BEIJING UNIV OF POSTS & TELECOMM