KR101736788B1 - Fat file system, vehicle multi media data storing apparatus and method that uses it - Google Patents

Fat file system, vehicle multi media data storing apparatus and method that uses it Download PDF

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Publication number
KR101736788B1
KR101736788B1 KR1020150172332A KR20150172332A KR101736788B1 KR 101736788 B1 KR101736788 B1 KR 101736788B1 KR 1020150172332 A KR1020150172332 A KR 1020150172332A KR 20150172332 A KR20150172332 A KR 20150172332A KR 101736788 B1 KR101736788 B1 KR 101736788B1
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South Korea
Prior art keywords
file
fat
area
multimedia data
data
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KR1020150172332A
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Korean (ko)
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이동경
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주식회사 엠티오메가
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    • G06F17/30091—
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R16/00—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for
    • B60R16/02—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements
    • G06F17/3007—
    • G06F17/30076—
    • G06F17/30123—

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Information Retrieval, Db Structures And Fs Structures Therefor (AREA)
  • Management Or Editing Of Information On Record Carriers (AREA)

Abstract

The present invention relates to a FAT file system, a vehicle multimedia data management apparatus and method using the FAT file system, a FAT area for allocating only one address indicating a location of a file generated according to multimedia data collected in the vicinity of the vehicle, An FS (File System) area for assigning and recording a unique file name to the file; And a data area for reading and recording image data and voice data included in the multimedia data.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a FAT file system, a vehicle multimedia data management apparatus using the FAT file system,

The present invention relates to a FAT file system and a vehicle multimedia data management apparatus and method using the FAT file system. More particularly, the present invention relates to a FAT file system, To a FAT file system capable of improving space efficiency.

Recently, the use of various storage devices has been increasing, such as ATA flash cards, compact flash cards, and MMC cards. At this time, the ATA flash card, the compact flash card, the MMC card, and the SD card each have a method for storing files, and a typical example is a FAT file system.

The FAT file system is largely divided into a partition area, a system area, and a user area. A part where actual data is stored is a user area, and a partition area and a system area are areas where information about a file is recorded.

For a storage device that initially has 16 MB, only 4 files are stored, based on the standard 4 MB size. That is, the above-mentioned phenomenon occurs because the file size is relatively large, and the FAT file system is caused by the burden of the partition area, the system area, and the like which can not store the data. Also, it is not possible to find and store a file suitable for storing in the user area, or to use the remaining space.

Therefore, in recent years, more than two physical storage devices are frequently used. In this case, the FAT file system also stores data separately for each physical device.

For example, if two storage devices with 16 MB are used, the total storage capacity is 32 MB, and the maximum file size that can be stored is 16 MB, minus the FAT overhead size, The maximum number of files is six, which results in a very large unused area of both storage devices.

Accordingly, although there is a space of a size that is the sum of two or more physical storage devices, a file can not be stored more than a physical size of one storage device, and the storage space can not be effectively used.

In this regard, Korean Patent Publication No. 2002-0088574 discloses a " memory card and its file write / read method applied to a digital player. &Quot;

The present invention has been made to solve the above-mentioned problems, and provides a FAT file system for allocating only one address indicating a location of a file generated according to multimedia data in a FAT area, a vehicle multimedia data management apparatus using the same, and a method thereof It has its purpose.

In addition, the present invention can be applied to a FAT file system in which data of one file is recorded in the data area, but the file is distinguished based on a unique file name of a file allocated in the FS area, a vehicle multimedia data management device using the same, The purpose of this method is to provide.

According to an aspect of the present invention, there is provided a FAT file system including: a FAT area for allocating only one address indicating a location of a file generated according to multimedia data collected in the vicinity of a vehicle; An FS (File System) area for assigning and recording a unique file name to the file; And a data area for reading and recording video data and audio data included in the multimedia data.

In addition, a plurality of files having the same address are recorded in the FS area, and each of the plurality of files has a unique file name.

The FS area is divided into a plurality of spaces in which the file is recorded based on a predetermined size of the file.

According to an aspect of the present invention, there is provided an apparatus for managing multimedia data for a vehicle using a FAT file system, the apparatus comprising: a FAT area for allocating only one address indicating a location of a file generated according to multimedia data collected in the vicinity of the vehicle; A vehicle multimedia data management apparatus using a FAT file system including an FS area for allocating and recording a unique file name and a data area for reading and recording image data and voice data included in the multimedia data, ; A file generation unit for generating the file; A transfer unit for transferring the file and the multimedia data to the FAT file system; And a playback unit for dividing a plurality of files recorded in the FAT file system based on a unique file name assigned to the file and reproducing the desired file.

According to another aspect of the present invention, there is provided a method for managing multimedia data for vehicles using a FAT file system, the method comprising: a FAT area allocating only one address indicating a location of a file generated according to multimedia data collected in the vicinity of the vehicle; A multimedia data management method for a vehicle using a FAT file system including an FS area for allocating and recording a unique file name and a data area for reading and recording image data and voice data included in the multimedia data, Collecting the multimedia data; Generating the file by the file creation unit; Transmitting the file and the multimedia data to the FAT file system by a transmitting unit; And reproducing a desired file by dividing a plurality of files recorded in the FAT file system on the basis of a unique file name assigned to the file by the playback unit.

The FAT file system according to the present invention having the above-described structure, the vehicle multimedia data management apparatus using the same, and the method for managing the vehicle multimedia data management method using the FAT file system according to the present invention are characterized by allocating only one address indicating a location of a file generated according to multimedia data in a FAT area, But it is possible to maximize the efficiency of the storage space of the file by distinguishing the files based on the unique file names of the files allocated in the FS area.

1 is a view for explaining a structure of a FAT file system according to the present invention.
2 is a diagram for explaining a file storage structure of a FAT file system according to the present invention.
3 is a view for explaining a multimedia data management device for a vehicle using the FAT file system according to the present invention.
4 is a view for explaining a multimedia data management method for a vehicle using the FAT file system according to the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings in order to facilitate a person skilled in the art to easily carry out the technical idea of the present invention. . First, in adding reference numerals to the constituent elements of the drawings, it should be noted that the same constituent elements are denoted by the same reference numerals whenever possible even if they are displayed on other drawings. In the following description of the present invention, a detailed description of known functions and configurations incorporated herein will be omitted when it may make the subject matter of the present invention rather unclear.

FIG. 1 is a view for explaining a structure of a FAT file system according to the present invention, and FIG. 2 is a view for explaining a file storage structure of a FAT file system according to the present invention.

1, the FAT file system 100 according to the present invention includes a FAT area 11, an FS area 120, and a data area 130. Here, it is assumed that the FAT file system 100 supports the FAT32 file system.

The FAT area 110 allocates only one address indicating the location of a file generated according to the multimedia data collected in the vicinity of the vehicle. That is, the FAT area 110 indicates the same address in the FAT (File Allocation Table) field for recording the file location information.

The FS (File System) area 120 allocates and records a unique file name to a file.

In the FS area 120, a plurality of files having the same address are recorded. At this time, a plurality of files each have a unique file name.

The FS area 120 divides the space in which the file is recorded in advance into a plurality of numbers based on the size of the predetermined file. As shown in FIG. 2, when a file is sequentially recorded at a predetermined address in the conventional method (a), and an address indicating the end of the file, for example, 0x0FFFFFFF, is displayed, the file is recorded from the next block. Therefore, there is a problem that the space for discarding is increased and the efficiency of the storage space of the file is lowered. However, according to the present invention (b), a space in which a file is recorded is divided into a plurality of numbers in advance based on the size of the predetermined file, and the file is recorded in any space. Therefore, there is no space to be discarded, and the efficiency of storage space of a file can be maximized.

The data area 130 stores video data and audio data included in the multimedia data. The data area 130 stores multimedia information data including information of video data, audio data, video data, and audio data at a predetermined location.

3 is a view for explaining a multimedia data management device for a vehicle using the FAT file system according to the present invention.

3, a vehicle multimedia data management apparatus 200 using a FAT file system according to the present invention includes a data collecting unit 210, a file generating unit 220, a transmitting unit 230, 240).

As described above, the FAT file system includes a FAT area for allocating only one address indicating a location of a file generated according to multimedia data collected in the vicinity of the vehicle, an FS for allocating and recording a unique file name to the file, And a data area for reading and recording video data and audio data included in the multimedia data. That is, the FAT file system 100 refers to a separate OS type or a part of an additional program for systematically organizing files stored in a memory unit (not shown) employed in a vehicle multimedia data storage device.

The data collecting unit 210 collects multimedia data generated in the vicinity of the vehicle. The data collecting unit 210 may include a camera for collecting an internal or external situation image, and may further include a microphone for collecting voice. In addition, the number of cameras that collect images according to the number of channels can be selectively set according to the utilization method, such as one camera for one channel, two cameras for two channels, four cameras for four channels, Can be changed and applied.

The file generation unit 220 generates a file for the multimedia data recorded in the FAT file system. The file generating unit 220 may select a size and a number of files to be generated based on the preset recording mode and the recording quality.

The transmission unit 230 transmits the file and the multimedia data to the FAT file system. The transmitting unit 230 transmits the video data and the voice data included in the multimedia data to the data area of the FAT file system and transmits the file to the FS area of the FAT file system.

The reproducing unit 240 divides a plurality of files recorded in the FAT file system based on a unique file name assigned to the file, and reproduces the desired file.

4 is a view for explaining a multimedia data management method for a vehicle using the FAT file system according to the present invention.

Referring to FIG. 4, the multimedia data management method for a vehicle using the FAT file system according to the present invention uses the above-described multimedia data management device for a vehicle, and a description thereof will be omitted.

First, multimedia data generated in the vicinity of the vehicle is collected (S100).

The step S100 may include a camera for collecting an internal or external situation image of the vehicle, and may further include a microphone and a speaker for collecting voice.

Next, a file for the multimedia data recorded in the FAT file system is generated (S200).

Next, the file and the multimedia data are transmitted to the FAT file system (S300).

In operation S300, the image data and audio data included in the multimedia data recorded in the FAT file system are transferred to the data area, and the file is transferred to the FS area.

Next, based on the unique file name assigned to the file, a plurality of files recorded in the FAT file system are divided and a desired file is reproduced (S400).

As described above, the FAT file system according to the present invention, a vehicle multimedia data management apparatus and method using the same, allocate only one address indicating a location of a file generated according to multimedia data in a FAT area, But it is possible to maximize the efficiency of file storage by separating files based on the unique file name of the file allocated in the FS area.

While the present invention has been described in connection with what is presently considered to be practical exemplary embodiments, it is to be understood that the invention is not limited to the disclosed embodiments, but many variations and modifications may be made without departing from the scope of the present invention. It will be understood that the invention may be practiced.

100: FAT file system
110: FAT area
120: FS area
130: data area
200: Multi-media data management device for a car using a FAT file system
210:
220:
230:
240:

Claims (6)

A FAT area allocating only one address indicating a location of a file generated according to multimedia data collected in the vicinity of the vehicle;
An FS (File System) area for assigning and recording a unique file name to the file; And
And a data area for reading and recording video data and audio data included in the multimedia data,
Wherein the FAT field for recording the location information of the file in the FAT area indicates the same address, and the plurality of files having the same address are recorded in the FS area. delete The method according to claim 1,
Wherein the plurality of files each have a unique file name. The method according to claim 1,
Wherein the FS area divides a space in which the file is recorded in advance into a plurality of numbers based on a predetermined size of the file. A FAT area for allocating only one address indicating a location of a file generated according to multimedia data collected in the vicinity of the vehicle, an FS area for assigning and recording a file name unique to the file, A vehicle multimedia data management apparatus using a FAT file system including a data area for reading and writing data,
A data collecting unit collecting the multimedia data;
A file generation unit for generating the file;
A transfer unit for transferring the file and the multimedia data to the FAT file system; And
And a playback unit for dividing a plurality of files recorded in the FAT file system on the basis of a unique file name assigned to the file and reproducing the desired file,
Wherein the FAT field for recording the location information of the file in the FAT area all indicate the same address, and the plurality of files having the same address are recorded in the FS area. A FAT area for allocating only one address indicating a location of a file generated according to multimedia data collected in the vicinity of the vehicle, an FS area for assigning and recording a file name unique to the file, 1. A vehicle multimedia data management method using a FAT file system including a data area for reading and writing data,
Collecting the multimedia data by a data collection unit;
Generating the file by the file creation unit;
Transmitting the file and the multimedia data to the FAT file system by a transmitting unit; And
And reproducing a desired file by dividing a plurality of files recorded in the FAT file system based on a unique file name assigned to the file by the playback unit,
Wherein the FAT field for recording the file location information of the FAT area all indicate the same address, and the plurality of files having the same address are recorded in the FS area.

KR1020150172332A 2015-12-04 2015-12-04 Fat file system, vehicle multi media data storing apparatus and method that uses it KR101736788B1 (en)

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Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2013127675A (en) * 2011-12-16 2013-06-27 Panasonic Corp Information management system
KR101433860B1 (en) 2007-10-10 2014-08-26 삼성전자주식회사 Information process device capable of managing efficiently file and operation method thereof

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101433860B1 (en) 2007-10-10 2014-08-26 삼성전자주식회사 Information process device capable of managing efficiently file and operation method thereof
JP2013127675A (en) * 2011-12-16 2013-06-27 Panasonic Corp Information management system

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