KR20220086986A - Method and apparatus for managing data of storage device - Google Patents

Abstract

In order to manage data in the storage device, a first log indicating the operation of creating a new data file is created, the first log is stored in a preset area of the storage device, a data file is created, and the data file is created. , delete the first log, create a second log representing the operation of storing the actual data of the data file in the first cluster of the target partition area, store the second log in a preset area of the storage device, and The actual data of the file is stored in the first cluster, and when the storage of the actual data is finished, the state information for the first cluster is allocated to the table of the FAT system, and the state information for the first cluster is stored in the table of the FAT system. If allocated, the second log is deleted.

Description

METHOD AND APPARATUS FOR MANAGING DATA OF STORAGE DEVICE

The following embodiments relate to a technology for managing data in a storage device, and more specifically, to a technology for managing data in a storage device operating based on a FAT system.

A file system that restores a directory entry based on the existence of an old rename file log to respond to an abnormal event in Korea Patent Publication No. 2016-0122405 (published on October 24, 2016) Determining at least one of formatting a memory card in which an old temporary file log exists and creating a new temp file log based on the module and the existence of an old temp file log Disclosed are a data storage system including a file manager module providing a first interface for recording data, and a recording manager module providing file name request information for recording data to the file manager module, and an operating method thereof.

An embodiment may provide a method for managing data in a storage device.

An embodiment may provide an electronic device for managing data in a storage device.

However, the technical tasks are not limited to the above-described technical tasks, and other technical tasks may exist.

According to an aspect, a data management method performed by an electronic device includes determining a target partition area of a storage device operating based on a file allocation table (FAT) system based on a target format of a name of a data file to be created step, generating a first log indicating the operation of creating a new data file, storing the first log in a preset area of the storage device, creating a data file, when the data file is created, Deleting the first log, generating a second log representing an operation of storing the actual data of the data file in the first cluster of the target partition area, and storing the second log in the preset area of the storage device storing, storing the actual data of the data file in the first cluster, allocating state information about the first cluster to a table of the FAT system when the storage of the actual data is finished; and and deleting the second log when the state information for the first cluster is allocated to the table of the FAT system.

The data management method may further include determining whether a preset target event has occurred, and determining the target format of the name of the to-be-generated data file based on the type of the target event.

The storage device formatted with the FAT system may include a boot record area, a reserved area, a FAT area and a data area, and the preset area may be included in the reserved area. .

In the data management method, when the size of the actual data is larger than that of the first cluster, a third log is generated indicating an operation of storing the actual data in a second cluster of the target partition area, and the third log is The method further comprising the steps of: storing a log in the preset area of the storage device; and storing the real data in the second cluster; Allocating the information to the table of the FAT system includes allocating the state information for the first cluster and the state information for the second cluster to the table of the FAT system, and deleting the second log The doing may include deleting the second log and the third log.

The data management method may include determining a size of the free space of the target partition area, and when the determined free space size is less than a preset threshold size, data stored in a third cluster among data previously stored in the target partition area Creating a fourth log indicating the operation of deleting , and storing the fourth log in the preset area; deleting data stored in the third cluster; , allocating status information for the third cluster to the table of the FAT system, and deleting the fourth log when the status information for the third cluster is assigned to the table of the FAT system may further include.

The data management method further includes the step of initializing the storage device, wherein the step of initializing the storage device includes a storage area of the storage device to include a boot record area, a reserved area, a FAT area, and a data area. formatting, dividing the data area into one or more partition areas to correspond to types of data being stored, each of the one or more partition areas including a plurality of clusters, and the one or more partition areas The method may include storing at least one of logical information about , and logical information about a plurality of clusters in the reserved area.

The FAT area includes a first FAT area and a second FAT area, and data stored in the first FAT area may be copied and stored in the second FAT area.

The data management method includes, when the electronic device is started, determining whether at least one residual log exists in the preset area, and when the residual log exists, the FAT system based on the residual log It may further include the step of restoring.

The actual data may be audio data or video data.

The electronic device may be a black box including a camera that generates a video and the storage device.

According to another aspect, an electronic device includes a memory in which a program for managing data is recorded, and a processor for executing the program, wherein the program is performed using a file format (FAT) based on a target format of a name of a data file to be created. allocation table) determining a target partition area of a storage device operating based on the system, generating a first log indicating an operation of creating a new data file, and storing the first log in a preset area of the storage device, the data file generating a second log representing an operation of creating a . Storing the second log in the preset area of the storage device, storing the actual data of the data file in the first cluster, and when the storage of the actual data ends, the state of the first cluster Allocating information to the table of the FAT system, and deleting the second log when the state information for the first cluster is allocated to the table of the FAT system.

The program may further perform the steps of determining whether a preset target event has occurred, and determining the target format of the name of the to-be-generated data file based on the type of the target event.

The storage device formatted with the FAT system may include a boot record area, a reserved area, a FAT area and a data area, and the preset area may be included in the reserved area. .

When the size of the actual data is larger than that of the first cluster, the program generates a third log indicating an operation of storing the actual data in a second cluster of the target partition area, and saves the third log. Further performing the steps of storing in the preset area of the storage device, and storing the real data in the second cluster, and when the storage of the real data is finished, the state information about the first cluster The step of allocating to the table of the FAT system includes allocating the state information for the first cluster and the state information for the second cluster to the table of the FAT system, and deleting the second log may include deleting the second log and the third log.

The program includes: determining the size of the free space of the target partition area; when the determined free space size is less than a preset size, deleting data stored in a third cluster among data previously stored in the target partition area generating a fourth log indicating an operation and storing the fourth log in the preset area; deleting data stored in the third cluster; allocating status information for the three clusters to the table of the FAT system, and deleting the fourth log when the status information for the third cluster is assigned to the table of the FAT system can do.

The program further performs the step of initializing the storage device, and the step of initializing the storage device comprises: formatting a storage area of the storage device to include a boot record area, a reserved area, a FAT area, and a data area dividing the data area into one or more partition areas to correspond to the types of data being stored, each of the one or more partition areas including a plurality of clusters, and for the one or more partition areas The method may include storing at least one of logical information and logical information on a plurality of clusters in the reserved area.

The program may include, when the electronic device is started, determining whether at least one residual log exists in the preset area, and if the residual log exists, restoring the FAT system based on the residual log more steps can be performed.

The electronic device may be a black box including a camera that generates a video and the storage device.

A method for managing data may be provided.

An electronic device for managing data files may be provided.

1 illustrates an electronic device disposed in a vehicle according to an example.
2 is a block diagram of an electronic device according to an exemplary embodiment.
3 is a flowchart of a method of initializing a storage device with a FAT system according to an example.
4 illustrates a storage area of a storage device formatted with a FAT system according to an example.
5 is a flowchart of a method for managing a data file according to an embodiment.
6 illustrates a first cluster in which actual data of a data file is stored according to an example.
7 is a flowchart of a method of storing actual data of a data file in a second cluster according to an example.
8 is a flowchart of a method of deleting data stored in a target partition area according to an example.
9 is a flowchart of a method of restoring a FAT system according to an example.

Specific structural or functional descriptions of the embodiments are disclosed for purposes of illustration only, and may be changed and implemented in various forms. Accordingly, the actual implementation form is not limited to the specific embodiments disclosed, and the scope of the present specification includes changes, equivalents, or substitutes included in the technical spirit described in the embodiments.

Although terms such as first or second may be used to describe various elements, these terms should be interpreted only for the purpose of distinguishing one element from another. For example, a first component may be termed a second component, and similarly, a second component may also be termed a first component.

When a component is referred to as being “connected to” another component, it may be directly connected or connected to the other component, but it should be understood that another component may exist in between.

The singular expression includes the plural expression unless the context clearly dictates otherwise. In this specification, terms such as "comprise" or "have" are intended to designate that the described feature, number, step, operation, component, part, or combination thereof exists, and includes one or more other features or numbers, It should be understood that the possibility of the presence or addition of steps, operations, components, parts or combinations thereof is not precluded in advance.

Unless defined otherwise, all terms used herein, including technical or scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art. Terms such as those defined in a commonly used dictionary should be interpreted as having a meaning consistent with the meaning in the context of the related art, and should not be interpreted in an ideal or excessively formal meaning unless explicitly defined in the present specification. does not

Hereinafter, embodiments will be described in detail with reference to the accompanying drawings. In the description with reference to the accompanying drawings, the same components are assigned the same reference numerals regardless of the reference numerals, and overlapping descriptions thereof will be omitted.

1 illustrates an electronic device disposed in a vehicle according to an example.

According to one aspect, the electronic device 110 may be mounted in the vehicle 100 . For example, the electronic device 110 may be a black box system that generates a video by photographing the surroundings of the vehicle 100 and stores data of the generated video. The electronic device 110 may include a camera or a camera module for controlling the camera.

Since the size of video data is relatively large, and the higher the quality, the larger the size, so it may be required to manage a storage area included in the electronic device 110 or connected to the electronic device 110 .

A method of managing data in a storage device will be described in detail below with reference to FIGS. 2 to 9 .

2 is a block diagram of an electronic device according to an exemplary embodiment.

The electronic device 200 may include a communication unit 210 , a processor 220 , and a memory 230 . Additionally, the electronic device 200 may further include a camera 240 and a storage device 250 . For example, the electronic device 200 may be included in a closed circuit television (CCTV) or a black box, and is not limited to the described embodiment.

The communication unit 210 is connected to the processor 220 , the memory 230 , the camera 240 , and the storage device 250 to transmit and receive data. The communication unit 210 may be connected to another external device to transmit/receive data. Hereinafter, the expression "transmitting and receiving "A" may indicate transmitting and receiving "information or data representing A".

The communication unit 210 may be implemented as circuitry in the electronic device 200 . For example, the communication unit 210 may include an internal bus and an external bus. As another example, the communication unit 210 may be an element that connects the electronic device 200 and an external device. The communication unit 210 may be an interface. The communication unit 210 may receive data from an external device and transmit the data to the processor 220 and the memory 230 .

The processor 220 processes data received by the communication unit 210 and data stored in the memory 230 .

A “processor” may be a data processing device implemented in hardware having circuitry having a physical structure for performing desired operations. For example, desired operations may include code or instructions included in a program. For example, a data processing device implemented as hardware includes a microprocessor, a central processing unit, a processor core, a multi-core processor, and a multiprocessor. , an Application-Specific Integrated Circuit (ASIC), and a Field Programmable Gate Array (FPGA).

Processor 220 executes computer readable code (eg, software) stored in memory (eg, memory 230 ) and instructions issued by processor 220 .

The memory 230 stores data received by the communication unit 210 and data processed by the processor 220 . For example, the memory 230 may store a program (or an application, software). The stored program may be a set of syntaxes coded to manage data of the storage device 250 and executable by the processor 220 .

According to one aspect, memory 230 may include one or more of volatile memory, non-volatile memory and random access memory (RAM), flash memory, hard disk drive, and optical disk drive.

The memory 230 stores an instruction set (eg, software) for operating the electronic device 200 . The instruction set for operating the electronic device 200 is executed by the processor 220 . For example, the memory 230 may be a register manufactured to perform preset operations, and is not limited to the described embodiment.

The camera 240 may generate data for a moving picture by capturing a scene.

The storage device 250 may store data. Data stored in the storage device 250 may be managed by the processor 220 . For example, data stored in the storage device 250 may be deleted or new data may be stored. The storage device 250 may be a storage device such as a Secure Digital (SD) memory card, and is not limited to the described embodiment.

The memory 230 and the storage device 250 may be integrated into one device or may be physically separate elements, and are not limited to the described embodiment.

The communication unit 210 , the processor 220 , the memory 230 , the camera 240 , and the storage device 250 will be described in detail below with reference to FIGS. 3 to 9 .

3 is a flowchart of a method of initializing a storage device with a FAT system according to an example.

According to one aspect, the method 300 of initializing the storage device 250 may include the following steps 310 to 330 . For example, the method 300 may be performed when initialization of the storage device 250 is required. The electronic device 200 may read the partition information of the storage device 250 , and when the partition information is invalid, it may be determined that initialization is required.

In step 310 , in the electronic device 200 , the storage area of the storage device 250 includes a boot record area, a reserved area, a file allocation table (FAT) area, and a data area. format it to For example, the storage device 250 may be formatted based on a FAT system. The storage area of the formatted storage device 250 is described in detail below with reference to FIG. 4 .

In operation 320, the electronic device 200 divides the data area into one or more partition areas to correspond to the types of stored data. For example, the types of data may vary depending on whether the moving picture is recorded in the regular recording mode or the event recording mode. The data area may be divided to include a first partition area for data generated by the regular recording mode and a second partition area for data generated by the event recording mode.

In operation 330 , the electronic device 200 may store logical information on partition areas in a reserved area. Since logical information is not generated in the form of a data file, it may not be stored in the data area but may be stored in a reserved area.

4 illustrates a storage area of a storage device formatted with a FAT system according to an example.

According to one aspect, the storage area 400 of the storage device 250 may be formatted to include a boot record area 410 , a reserved area 420 , a FAT area 430 , and a data area 440 .

The boot record area 410 may include a master boot record (MBR) area.

The reserved area 420 may be an area reserved for use in the existing standard FAT system.

The FAT area 430 may include a first FAT area 431 and a second FAT area 432 . Data stored in the first FAT area 431 may be copied and stored in the second FAT area 432 . The first FAT area 431 may store where actual data or a directory is stored or located in the data area 440 . State information of one or more clusters of the data area 440 may be recorded in the first FAT area 431 . For example, state information about one or more clusters may be managed as a table. [Table 1] below shows table values corresponding to cluster status information.

FAT32 Explanation 0x?0000000 free cluster 0x?0000001 Reserved cluster, has no special meaning yet, but is reserved for future use. 0x?0000002 ~0x?FFFFFFEF This is the allocated cluster, the cluster where meaningful data is stored, and the value stored in the FAT entry is the number of the next connected cluster. 0x? FFFFFF0 ~0x?FFFFFF6 Reserved cluster, has no special meaning yet, but is reserved for future use. 0x?FFFFFF7 Bad cluster. 0x?FFFFFF8 ~0x?FFFFFFF That cluster is the end of cluster for that datafile, there are no more associated clusters.

The data area 440 may be divided into one or more partition areas through formatting. The partition area may include a plurality of clusters. Real data can be stored in the cluster. For example, actual data of one data file may be stored across a plurality of clusters. The data file may include a video file, an image file, a text file, and the like.

The data area 440 may include a root directory area 445 . The root directory area 445 may be located at the beginning of the data area 440 , but is not limited to the described embodiment and may be located, for example, in the middle of the data area 440 .

5 is a flowchart of a method for managing a data file according to an embodiment.

The following steps 505 to 550 may be performed by the electronic device 200 described above with reference to FIG. 2 . Step 505 may be performed after step 330 described above with reference to FIG. 3 is performed.

In step 505 , the electronic device 200 determines whether a preset target event has occurred. For example, the target event may be the start of the continuous recording mode. As another example, the target event may be a trigger for starting an event recording mode. For example, the trigger may be an impact detection of a vehicle in which the electronic device 200 is installed.

When a target event occurs, video recording for the corresponding mode may start.

In operation 510, the electronic device 200 determines the target format of the name of the generated data file based on the type of the target event. The format of the name of the data file may vary depending on the type of target event. For example, when a data file is generated in the normal recording mode, the name of the data file may be in the form of “normally recorded video xx”. As another example, when a data file is generated in the event recording mode, the name of the data file may be in the form of “event recording video yy”. xx and yy may be variables that vary depending on the time of creation.

In operation 515 , the electronic device 200 determines a target partition area of the storage device 250 operating based on the FAT system based on the target format of the name of the data file to be created. For example, a target partition area corresponding to a target type may be determined from among the plurality of partition areas.

In operation 520 , the electronic device 200 generates a first log indicating that a new data file is created, and stores the first log in a preset area of the storage device 250 . For example, the preset area may be included in a reserved area of the storage device 250 (eg, the reserved area 420 of FIG. 4 ).

In step 525 , the electronic device 200 creates a data file. The data file may be information about actual data. For example, the information about the actual data may include the size of the data, a creation time, a storage location, and the like.

In operation 530 , when the data file is generated, the electronic device 200 deletes the first log stored in a preset area of the storage device 250 . Deleting the first log may mean that the corresponding operation is normally completed.

In step 535 , the electronic device 200 generates a second log representing an operation of storing the actual data of the data file in the first cluster of the target partition area, and stores the second log in a preset of the storage device 250 . It is stored in an area (eg, the reserved area 420 of FIG. 4 ).

In operation 540, the electronic device 200 stores the actual data of the data file in the first cluster. The actual data may be data of a video generated by a camera.

In operation 545 , when the storage of actual data is finished, the electronic device 200 allocates state information about the first cluster to a table of the FAT system. For example, since valid data is stored in the first cluster, any one of the values "0x?0000002" to "0x?FFFFFFEF" or "0x?FFFFFF8 to "0x?FFFFFFF" in the table as status information for the first cluster One can be assigned.

In operation 550 , when the state information on the first cluster is allocated to the table of the FAT system, the electronic device 200 deletes the second log. That is, the second log may be deleted when all actual data is stored in the storage device 250 . Deleting the second log may mean that the corresponding operation is normally completed.

6 illustrates a first cluster in which actual data of a data file is stored according to an example.

According to one aspect, the data area 440 may be divided into a first partition area 610 and a second partition area 62 and formatted. For example, the first partition area 610 may be allocated for the regular recording mode, and the second partition area 620 may be allocated for the event recording mode.

The first partition area 610 may include a plurality of clusters. For example, actual data for the first data file is stored in some clusters 612 of the first partition area 610 , and actual data for the second data file is stored in some other clusters 614 . may have been When a new data file is created, actual data of the new data file may be stored in the first cluster 616 . When the size of the actual data is larger than that of the first cluster 616 , the actual data may be stored in the second cluster 616 following the first cluster 616 .

7 is a flowchart of a method of storing actual data of a data file in a second cluster according to an example.

According to one aspect, the following steps 710 and 720 may be performed after step 540 is performed with reference to FIG. 5 .

In operation 710 , when the size of the actual data is larger than that of the first cluster, the electronic device 200 generates a third log indicating an operation of storing the actual data in the second cluster, and stores the third log. It is stored in a preset area of the device 250 (eg, the reserved area 420 of FIG. 4 ).

In operation 720 , the electronic device 200 stores actual data in the second cluster.

When the size of the real data is larger than the sum of the first cluster and the second cluster, the real data may be stored in the third cluster. To store the actual data in the third cluster, steps 710 and 720 may similarly be performed for the third cluster.

When steps 710 and 720 have been performed, step 545 may include allocating the state information for the first cluster and the state information for the second cluster to a table in the FAT system.

When steps 710 and 720 are performed, step 550 may include deleting the second log and the third log.

8 is a flowchart of a method of deleting data stored in a target partition area according to an example.

When the free space of the target partition is small to store new data, the following steps 810 to 850 may be performed. Step 810 may be performed after step 515 of FIG. 5 is performed.

In operation 810 , the electronic device 200 determines the size of the free space of the target partition area.

In step 820, when the determined size of the free space is less than a preset threshold size, the electronic device 200 generates a fourth log indicating an operation of deleting data stored in the third cluster among data previously stored in the target partition area. generated, and the fourth log is stored in a preset area.

In operation 830 , the electronic device 200 deletes data stored in the third cluster.

In operation 840 , when data stored in the third cluster is deleted, the electronic device 200 allocates state information about the third cluster to a table of the FAT system.

In operation 850, when the state information on the third cluster is allocated to the table, the electronic device 200 deletes the fourth log. Deleting the fourth log may mean that the corresponding operation is normally completed.

Although exemplified as deleting the data of the third cluster, additional clusters may be deleted until the free space exceeds a threshold size.

When the free space of the target partition area is sufficiently secured, step 520 described above with reference to FIG. 5 may be performed.

9 is a flowchart of a method of restoring a FAT system according to an example.

According to one aspect, the following steps 910 and 920 may be performed before the step 505 described above with reference to FIG. 5 is performed.

In operation 910 , when the electronic device 200 (or the system) is started, the electronic device 200 determines whether a residual log exists in a preset area (eg, the reserved area 420 ). do. The existence of a residual log means that the operation of the log is not normally completed.

In operation 920 , if there is a residual log, the electronic device 200 restores the FAT system based on the residual log. For example, although data stored in a cluster in the data area is actually deleted, accurate state information about the cluster may not be allocated to the table. As another example, although data is stored in a cluster in the data area, accurate state information about the cluster may not be allocated to the table. The electronic device 200 may restore the FAT system so that the FAT system operates normally based on the remaining log.

The embodiments described above may be implemented by a hardware component, a software component, and/or a combination of a hardware component and a software component. For example, the apparatus, methods, and components described in the embodiments may include, for example, a processor, a controller, an arithmetic logic unit (ALU), a digital signal processor, a microcomputer, a field programmable gate (FPGA) array), a programmable logic unit (PLU), a microprocessor, or any other device capable of executing and responding to instructions, may be implemented using a general purpose computer or special purpose computer. The processing device may execute an operating system (OS) and a software application running on the operating system. A processing device may also access, store, manipulate, process, and generate data in response to execution of the software. For convenience of understanding, although one processing device is sometimes described as being used, one of ordinary skill in the art will recognize that the processing device includes a plurality of processing elements and/or a plurality of types of processing elements. It can be seen that can include For example, the processing device may include a plurality of processors or one processor and one controller. Other processing configurations are also possible, such as parallel processors.

Software may comprise a computer program, code, instructions, or a combination of one or more thereof, which configures a processing device to operate as desired or is independently or collectively processed You can command the device. The software and/or data may be any kind of machine, component, physical device, virtual equipment, computer storage medium or apparatus, to be interpreted by or to provide instructions or data to the processing device. , or may be permanently or temporarily embody in a transmitted signal wave. The software may be distributed over networked computer systems and stored or executed in a distributed manner. Software and data may be stored in a computer-readable recording medium.

The method according to the embodiment may be implemented in the form of program instructions that can be executed through various computer means and recorded in a computer-readable medium. The computer readable medium may include program instructions, data files, data structures, etc. alone or in combination, and the program instructions recorded on the medium are specially designed and configured for the embodiment, or may be known and available to those skilled in the art of computer software. may be Examples of the computer-readable recording medium include magnetic media such as hard disks, floppy disks and magnetic tapes, optical media such as CD-ROMs and DVDs, and magnetic such as floppy disks. - includes magneto-optical media, and hardware devices specially configured to store and execute program instructions, such as ROM, RAM, flash memory, and the like. Examples of program instructions include not only machine language codes such as those generated by a compiler, but also high-level language codes that can be executed by a computer using an interpreter or the like.

The hardware devices described above may be configured to operate as one or a plurality of software modules to perform the operations of the embodiments, and vice versa.

As described above, although the embodiments have been described with reference to the limited drawings, those of ordinary skill in the art may apply various technical modifications and variations based thereon. For example, the described techniques are performed in an order different from the described method, and/or the described components of the system, structure, apparatus, circuit, etc. are combined or combined in a different form than the described method, or other components Or substituted or substituted by equivalents may achieve an appropriate result.

Therefore, other implementations, other embodiments, and equivalents to the claims are also within the scope of the following claims.

200: electronic device
210: communication department
220: processor
230: memory
240: camera
250: storage device

Claims (19)

A data management method, performed by an electronic device, comprises:
determining a target partition area of a storage device operating based on a file allocation table (FAT) system based on a target format of a name of a data file to be created;
generating a first log indicating an operation of creating a new data file, and storing the first log in a preset area of the storage device;
creating a data file;
deleting the first log when the data file is created;
generating a second log representing an operation of storing the actual data of the data file in a first cluster of the target partition area, and storing the second log in the preset area of the storage device;
storing the actual data of the data file in the first cluster;
allocating state information about the first cluster to a table of the FAT system when the storage of the actual data is finished; and
Deleting the second log when the state information for the first cluster is allocated to the table of the FAT system
containing,
How to manage your data.
According to claim 1,
determining whether a preset target event has occurred; and
determining the target format of the name of the to-be-generated data file based on the type of the target event;
further comprising,
How to manage your data.
According to claim 1,
The storage device formatted with the FAT system includes a boot record area, a reserved area, a FAT area and a data area,
The preset area is included in the reserved area,
How to manage your data.
According to claim 1,
When the size of the actual data is larger than that of the first cluster, a third log indicating an operation of storing the actual data in a second cluster of the target partition area is generated, and the third log is stored in the storage device. storing in the preset area; and
Storing the real data in the second cluster
further comprising,
When the storage of the actual data is finished, allocating the state information for the first cluster to the table of the FAT system comprises:
Allocating the state information for the first cluster and the state information for the second cluster to a table of the FAT system
including,
The step of deleting the second log is,
Deleting the second log and the third log
containing,
How to manage your data.
According to claim 1,
determining a size of a free space of the target partition area;
When the determined size of the free space is less than a preset threshold size, a fourth log indicating an operation of deleting data stored in a third cluster among data previously stored in the target partition area is generated, and the fourth log is previously stored in the target partition area. storing in a set area;
deleting data stored in the third cluster;
allocating state information about the third cluster to the table of the FAT system when data stored in the third cluster is deleted; and
deleting the fourth log when the state information for the third cluster is assigned to the table of the FAT system;
further comprising,
How to manage your data.
According to claim 1,
Initializing the storage device
further comprising,
Initializing the storage device includes:
formatting a storage area of the storage device to include a boot record area, a reserved area, a FAT area, and a data area;
dividing the data area into one or more partition areas to correspond to types of stored data, each of the one or more partition areas including a plurality of clusters; and
storing at least one of logical information on the one or more partition areas and logical information on a plurality of clusters in the reserved area;
containing,
How to manage your data.
7. The method of claim 6,
The FAT area is
a first FAT area and a second FAT area;
data stored in the first FAT area is copied and stored in the second FAT area;
How to manage your data.
According to claim 1,
determining whether at least one remaining log exists in the preset area when the electronic device is started; and
If the residual log exists, restoring the FAT system based on the residual log;
further comprising,
How to manage your data.
According to claim 1,
The actual data is audio data or video data,
How to manage your data.
According to claim 1,
The electronic device is
A camera that generates a video, and a black box including the storage device,
How to manage your data.
A computer program stored in a computer-readable recording medium in combination with hardware to execute the method of any one of claims 1 to 10.
The electronic device is
a memory in which a program for managing data is recorded; and
a processor that executes the program
including,
The program is
determining a target partition area of a storage device operating based on a file allocation table (FAT) system based on a target format of a name of a data file to be created;
generating a first log indicating an operation of creating a new data file and storing the first log in a preset area of the storage device;
creating a data file;
deleting the first log when the data file is created;
generating a second log representing an operation of storing the actual data of the data file in a first cluster of the target partition area, and storing the second log in the preset area of the storage device;
storing the actual data of the data file in the first cluster;
allocating state information about the first cluster to a table of the FAT system when the storage of the actual data is finished; and
Deleting the second log when the state information for the first cluster is allocated to the table of the FAT system
to do,
electronic device.
13. The method of claim 12,
The program is
determining whether a preset target event has occurred; and
determining the target format of the name of the to-be-generated data file based on the type of the target event;
to do more,
electronic device.
13. The method of claim 12,
The storage device formatted with the FAT system includes a boot record area, a reserved area, a FAT area and a data area,
The preset area is included in the reserved area,
electronic device.
13. The method of claim 12,
The program is
When the size of the actual data is larger than that of the first cluster, a third log indicating an operation of storing the actual data in a second cluster of the target partition area is generated, and the third log is stored in the storage device. storing in the preset area; and
Storing the real data in the second cluster
do more,
When the storage of the actual data is finished, allocating the state information for the first cluster to the table of the FAT system comprises:
Allocating the state information for the first cluster and the state information for the second cluster to a table of the FAT system
including,
The step of deleting the second log is,
Deleting the second log and the third log
containing,
electronic device.
13. The method of claim 12,
The program is
determining a size of a free space of the target partition area;
When the determined size of the free space is less than a preset size, a fourth log indicating an operation of deleting data stored in a third cluster among data previously stored in the target partition area is generated, and the fourth log is stored in the preset size. storing in a region;
deleting data stored in the third cluster;
allocating state information about the third cluster to the table of the FAT system when data stored in the third cluster is deleted; and
deleting the fourth log when the state information for the third cluster is assigned to the table of the FAT system;
to do more,
electronic device.
13. The method of claim 12,
The program is
Initializing the storage device
do more,
Initializing the storage device includes:
formatting a storage area of the storage device to include a boot record area, a reserved area, a FAT area, and a data area;
dividing the data area into one or more partition areas to correspond to types of stored data, each of the one or more partition areas including a plurality of clusters; and
storing at least one of logical information on the one or more partition areas and logical information on a plurality of clusters in the reserved area;
containing,
electronic device.
13. The method of claim 12,
The program is
determining whether at least one remaining log exists in the preset area when the electronic device is started; and
If the residual log exists, restoring the FAT system based on the residual log;
to do more,
electronic device.
13. The method of claim 12,
The electronic device is
A camera that generates a video, and a black box including the storage device,
electronic device.

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