CN101546326A

CN101546326A - System and method for capacity-reduction and backup of file

Info

Publication number: CN101546326A
Application number: CN200810300694A
Authority: CN
Inventors: 常春明
Original assignee: Hongfujin Precision Industry Shenzhen Co Ltd; Hon Hai Precision Industry Co Ltd
Current assignee: Hongfujin Precision Industry Shenzhen Co Ltd; Hon Hai Precision Industry Co Ltd
Priority date: 2008-03-25
Filing date: 2008-03-25
Publication date: 2009-09-30

Abstract

The invention relates to a method for capacity-reduction and backup of a file. The method comprises the following steps: acquiring the content of a file which needs the capacity-reduction and backup from a database; selecting a proper graph bar code type according to the content of the file; reading the size of a space capable of being contained by the selected graph bar code; according to the read size of the space of the selected graph bar code, splitting the content of the file into a plurality of parts which can be contained by the selected graph bar code; respectively converting the split content into binary system codes and then respectively converting the binary system codes into corresponding graph bar codes; according to the sequence of generating the graph bar codes, writing running numbers at the last position of each graph bar code; and storing the graph bar codes into the database. In addition, the invention also provides a system for the capacity-reduction and backup of the file.

Description

File capacity reducing standby system and method

Technical field

The present invention relates to a kind of file capacity reducing standby system and method.

Background technology

When file was backed up, the compressibility problem of file was the importance that operating personnel consider.The backup of file not only will be considered the size that takies of hard drive space, also will consider the recovery extent after safety of files and the file destroyed simultaneously.Wherein, the size that takies of hard drive space is the emphasis that operating personnel consider when file backup.

At present, our employed File Compress software all is to think deeply solution on stored in file format, promptly comes the form of convert file with space-efficient form.For the smaller file layout that itself takes up room, this method compression effectiveness is not clearly; For some bigger file layouts that takes up room, the compressibility of this method promptly can be compressed the space about 25% about 25%.But along with the electronization of office operation, the file that occurs often taking than large space need back up, and 25% compressibility can not satisfy the demand of modern's work and life far away.

Summary of the invention

In view of above content, be necessary to provide a kind of file capacity reducing standby system, the content of file can be converted to corresponding figure bar code and back up, significantly reduced the shared space of backup file.

In view of above content, be necessary to provide a kind of file capacity reducing backup method, the content of file can be converted to corresponding figure bar code and back up, significantly reduced the shared space of backup file.

A kind of file capacity reducing standby system comprises main frame and the database that links to each other with this main frame, and this main frame comprises: acquisition module is used for obtaining the content that need carry out the file that capacity reducing backs up from this database; Select module, be used for type according to the suitable figure bar code of the content choice of described file; Read module is used to read the space size that selected figure bar code can be held; Split module, be used for space size, the content of the file that obtained is split into the part that several can be held by selected figure bar code according to the figure bar code that is read; Modular converter is used for converting the content after splitting to binary code respectively, more described binary code is converted to corresponding figure bar code respectively; Writing module is used for writing serial number in the rearmost position of each figure bar code successively according to the sequencing that described figure bar code produces; And preserve module, be used for described figure bar code is saved to this database.

A kind of file capacity reducing backup method, this method comprise the steps: to obtain the content of the file that need carry out the capacity reducing backup from this database; Type according to the suitable figure bar code of the content choice of described file; Read the space size that selected figure bar code can be held; According to the space size of the figure bar code that is read, the content of the file that obtained is split into the part that several can be held by selected figure bar code; Convert the content after splitting to binary code respectively, more described binary code is converted to corresponding figure bar code respectively; The sequencing that produces according to described figure bar code writes serial number in the rearmost position of each figure bar code successively; And described figure bar code is saved in this database.

Compared to prior art, file capacity reducing standby system provided by the present invention and method, the content of file can be converted to corresponding figure bar code and back up, the space size reduction that makes backup file has significantly reduced the shared space of backup file more than 50%.

Description of drawings

Fig. 1 is the hardware structure figure of file capacity reducing standby system of the present invention preferred embodiment.

Fig. 2 is the functional block diagram of main frame among Fig. 1.

Fig. 3 is the process flow diagram of file capacity reducing backup method of the present invention preferred embodiment.

Embodiment

As shown in Figure 1, be the system architecture diagram of file capacity reducing standby system of the present invention preferred embodiment.This system mainly comprises main frame 1, database 2, display 3, keyboard 4 and mouse 5.This main frame 1 is used for obtaining the content of the file that needs to carry out the capacity reducing backup in the database 2, converts the content of file to several corresponding figure bar code.This database 2 links to each other with this main frame 1, is used to store the file that carries out the capacity reducing backup, and the figure bar code after the storage conversion.Described display 3, keyboard 4 and mouse 5 link to each other with main frame 1 respectively, are used for converting in the content with file the input and output of figure bar code process relevant information.

As shown in Figure 2, be the functional block diagram of main frame 1 among Fig. 1.Described main frame 1 comprises acquisition module 10, selection module 12, read module 14, splits module 16, modular converter 18, writing module 20, encrypting module 22 and preserves module 24.

Described acquisition module 10 is used for obtaining from database 2 content of the file that need carry out the capacity reducing backup.The content of described file includes, but not limited to picture, literal and sound.

Described selection module 12 is used for the type according to the suitable figure bar code of the content choice of described file.The type of described figure bar code includes, but not limited to bar code, two-dimensional bar code and dimensional bar code.Described bar code claims linear bar code again, being often referred to those (generally is horizontal direction in a direction, then do not express any information in vertical direction) bar code of expressing information is bar code, as: the bar code in the bar code on the extensive stock of often seeing, registered mail and the Express Mail Service.Described two-dimensional bar code is the bar code of the chequered with black and white graphic recording data symbol information that (on the two-dimensional directional) distributes on the plane according to certain rules with certain specific geometric figure, therefore two-dimensional bar can express a large amount of information in horizontal and vertical two orientation while expressing information in very little area.Described dimensional bar code is meant and develops on the basis of two-dimensional bar code, can be in the three dimensions bar code of expressing information simultaneously, and it can hold than two-dimensional bar code more information.When the content of the file of required capacity reducing backup is picture (shared space is smaller), select one dimension figure bar code; When the content of the file of required capacity reducing backup is a large amount of literal (shared space is bigger), select the X-Y scheme bar code; When the content of the file of required capacity reducing backup is sound (shared space is very big), can select multidimensional figure bar code.

Described read module 14 is used to read the space size that selected figure bar code can be held.The space that bar code can hold is very little, can only hold 6 bytes usually.But 1850 capitalizations of two-dimensional bar code outfit as many as or 2710 numerals or 1108 bytes, or more than 500 Chinese character are higher approximately tens times than common bar code information capacity.

Described fractionation module 16 is used for the space size according to the figure bar code that is read, and the content of the file that obtained is split into the part that several can be held by selected figure bar code.For example: if the content of the file that obtained is 5000 bytes, institute reads to such an extent that the space size that can hold of figure bar code is 1108 bytes, and then the content of this document need be split into 4 1108 bytes partly and one 568 byte part.

Described modular converter 18 is used for converting the content after splitting to binary code respectively, more described binary code is converted to corresponding figure bar code respectively.For example: when selected barcode types is two-dimensional bar code, figure bar code after the described conversion is a matrix form figure bar code, this matrix form figure bar code is formed with the form of matrix, on matrix respective element position, represent binary one with " point ", with " sky " expression binary zero, by the code that rearranges of " point " and " sky ".The order of this conversion is changed according to splitting hereinafter the sequencing of part content.The compare space size of original content of matrix form graphic bar code space size after the conversion significantly reduces, for example: if size is arranged is that the file of 26000 bytes includes only literal, after selected figure bar code is two-dimensional bar code, after through modular converter 18 conversions, the byte of the matrix form figure bar code that produces is total up to about 5000 bytes, and compressibility is about 80%; If it is that the file of 26000 bytes comprises literal and picture that size is arranged, after selected figure bar code is two-dimensional bar code, after through modular converter 18 conversions, the byte of the matrix form figure bar code of generation is total up to about 13000 bytes, and compressibility is about 50%.

Said write module 20 is used for writing serial number in the rearmost position of each figure bar code successively according to the sequencing that described figure bar code produces.When writing module 20 write serial number in the rearmost position of each figure bar code, this serial number can be presented in the name of each figure bar code.Described serial number can be represented with arabic numeral, for example: if the name of the file of this capacity reducing backup is " document ", then the name of the figure bar code that produces at first is " document 1 ", the name of the second figure bar code that produces is " document 2 ", the name of the 3rd figure bar code that produces is " document 3 ", and the like.

Described encrypting module 22 is used for Crypted password to all figure bar codes being set, and according to set Crypted password all figure bar codes is carried out encipherment protection.

Described preservation module 24 is used for described figure bar code of carrying out behind the encipherment protection is saved to database 2.

As shown in Figure 3, be the process flow diagram of file capacity reducing backup method of the present invention preferred embodiment.At first, step S10, acquisition module 10 obtain the content of the file that need carry out the capacity reducing backup.The content of described file includes, but not limited to picture, literal and sound.

Step S12 selects the type of module 12 according to the suitable figure bar code of the content choice of described file.The type of described figure bar code includes, but not limited to bar code, two-dimensional bar code and dimensional bar code.When the content of the file of required capacity reducing backup is picture (shared space is smaller), select one dimension figure bar code; When the content of the file of required capacity reducing backup is a large amount of literal (shared space is bigger), select the X-Y scheme bar code; When the content of the file of required capacity reducing backup is sound (shared space is very big), can select multidimensional figure bar code.

Step S14, read module 14 read the space size that selected figure bar code can be held.

Step S16 splits the space size of module 16 according to the figure bar code that is read, and the content of the file that obtained is split into the part that several can be held by selected figure bar code.For example: if the content of the file that obtained is 5000 bytes, institute reads to such an extent that the space size that can hold of figure bar code is 1108 bytes, and then the content of this document need be split into 4 1108 bytes partly and one 568 byte part.

Step S18, the content after modular converter 18 will split converts binary code respectively to, more described binary code is converted to corresponding figure bar code respectively.For example: when selected when selected barcode types is two-dimensional bar code, figure bar code after the described conversion is a matrix form figure bar code, described matrix form figure bar code is formed with the form of matrix, on matrix respective element position, represent binary one with " point ", with " sky " expression binary zero, by the code that rearranges of " point " and " sky ".The order of this conversion is changed according to the sequencing that splits the back file content.The compare space size of original content of matrix form graphic bar code space size after the conversion significantly reduces, for example: if size is arranged is that the file of 26000 bytes includes only literal, after selected figure bar code is two-dimensional bar code, after through modular converter 18 conversions, the byte of the matrix form figure bar code that produces is total up to about 5000 bytes, and compressibility is about 80%; If it is that the file of 26000 bytes comprises literal and picture that size is arranged, after selected figure bar code is two-dimensional bar code, after through modular converter 18 conversions, the byte of the matrix form figure bar code of generation is total up to about 13000 bytes, and compressibility is about 50%.

Step S20, writing module 20 writes serial number in the rearmost position of each figure bar code successively according to the sequencing that described figure bar code produces.When writing module 20 write serial number in the rearmost position of each figure bar code, this serial number can be presented in the name of each figure bar code.Described serial number can be represented with arabic numeral, for example: if the name of the file of this capacity reducing backup is " document ", then the name of the figure bar code that produces at first is " document 1 ", the name of the second figure bar code that produces is " document 2 ", the name of the 3rd figure bar code that produces is " document 3 ", and the like.

Step S22, encrypting module 22 is provided with Crypted password for all figure bar codes.

Step S24, encrypting module 22 carries out encipherment protection according to set Crypted password to all figure bar codes.

Step S26 preserves module 24 described figure bar code of carrying out behind the encipherment protection is saved in the database 2.

Claims

[claim 1] a kind of file capacity reducing standby system comprises main frame and the database that links to each other with this main frame, it is characterized in that this main frame comprises:

Acquisition module is used for obtaining from this database the content of the file that need carry out capacity reducing backup;

Select module, be used for type according to the suitable figure bar code of the content choice of described file;

Read module is used to read the space size that selected figure bar code can be held;

Split module, be used for space size, the content of the file that obtained is split into the part that several can be held by selected figure bar code according to the figure bar code that is read;

Modular converter is used for converting the content after splitting to binary code respectively, more described binary code is converted to corresponding figure bar code respectively;

Writing module is used for writing serial number in the rearmost position of each figure bar code successively according to the sequencing that described figure bar code produces; And

Preserve module, be used for described figure bar code is saved to this database.
[claim 2] file capacity reducing as claimed in claim 1 standby system is characterized in that this system also comprises:

Encrypting module is used for Crypted password being set for described figure bar code, and according to set Crypted password all figure bar codes being carried out encipherment protection before the preservation module is saved to database with described figure bar code.
[claim 3] file capacity reducing as claimed in claim 1 standby system is characterized in that the type of described figure bar code comprises bar code, two-dimensional bar code and dimensional bar code.
[claim 4] a kind of file capacity reducing backup method is characterized in that this method comprises the steps:

From database, obtain the content of the file that need carry out the capacity reducing backup;

Type according to the suitable figure bar code of the content choice of described file;

Read the space size that selected figure bar code can be held;

According to the space size of the figure bar code that is read, the content of the file that obtained is split into the part that several can be held by selected figure bar code;

Convert the content after splitting to binary code respectively, more described binary code is converted to corresponding figure bar code respectively;

The sequencing that produces according to described figure bar code writes serial number in the rearmost position of each figure bar code successively; And

Described figure bar code is saved in this database.
[claim 5] file capacity reducing as claimed in claim 4 backup method is characterized in that, also comprises step before the step that described figure bar code is saved in this database:

Crypted password is set for all figure bar codes; And

According to set Crypted password all figure bar codes are carried out encipherment protection.