CN109101435A - The multi partition recognition methods of movable storage device and system, car-mounted terminal - Google Patents
The multi partition recognition methods of movable storage device and system, car-mounted terminal Download PDFInfo
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- CN109101435A CN109101435A CN201810687872.8A CN201810687872A CN109101435A CN 109101435 A CN109101435 A CN 109101435A CN 201810687872 A CN201810687872 A CN 201810687872A CN 109101435 A CN109101435 A CN 109101435A
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F12/00—Accessing, addressing or allocating within memory systems or architectures
- G06F12/02—Addressing or allocation; Relocation
- G06F12/0223—User address space allocation, e.g. contiguous or non contiguous base addressing
- G06F12/023—Free address space management
- G06F12/0238—Memory management in non-volatile memory, e.g. resistive RAM or ferroelectric memory
- G06F12/0246—Memory management in non-volatile memory, e.g. resistive RAM or ferroelectric memory in block erasable memory, e.g. flash memory
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F13/00—Interconnection of, or transfer of information or other signals between, memories, input/output devices or central processing units
- G06F13/10—Program control for peripheral devices
- G06F13/102—Program control for peripheral devices where the programme performs an interfacing function, e.g. device driver
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F13/00—Interconnection of, or transfer of information or other signals between, memories, input/output devices or central processing units
- G06F13/38—Information transfer, e.g. on bus
- G06F13/40—Bus structure
- G06F13/4063—Device-to-bus coupling
- G06F13/4068—Electrical coupling
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
- G06K7/00—Methods or arrangements for sensing record carriers, e.g. for reading patterns
- G06K7/0013—Methods or arrangements for sensing record carriers, e.g. for reading patterns by galvanic contacts, e.g. card connectors for ISO-7816 compliant smart cards or memory cards, e.g. SD card readers
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- General Physics & Mathematics (AREA)
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- Computer Vision & Pattern Recognition (AREA)
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Abstract
The present invention is suitable for technical field of vehicle, provide a kind of multi partition recognition methods of movable storage device, when including: the operation that car-mounted terminal detects insertion movable storage device, the identification information of the movable storage device is obtained, the identification information includes the partition information of the movable storage device；Judge the movable storage device with the presence or absence of multi partition according to the partition information；If there are single subregions for the movable storage device, the identification of the movable storage device is completed according to the identification information；If there are multiple subregions for the movable storage device, the file type of each subregion is obtained according to the identification information, and the identification to the movable storage device is completed according to the file type.The problem of embodiment of the present invention, which solves car-mounted terminal in the prior art, can only realize single subregion identification when being inserted into movable storage device, cannot identify daily large capacity movable storage device.
Description
Technical field
The invention belongs to the multi partition recognition methods of technical field of vehicle more particularly to a kind of movable storage device and it is
System, car-mounted terminal.
Background technique
Existing car-mounted terminal supports the movable storage device including SD card or USB flash disk, but in car-mounted terminal to SD
When card or USB flash disk are identified, it can only identify a subregion, multiple subregions cannot be identified, therefore exist because subregion cannot
The problem of identifying and wherein data cannot be read, can not be used.
Summary of the invention
Technical problem to be solved by the present invention lies in the multi partition recognition methods for providing a kind of movable storage device and it is
System, car-mounted terminal, it is intended to which one can only be identified when identifying to movable storage device by solving car-mounted terminal in the prior art
The problem of subregion.
The invention is realized in this way a kind of multi partition recognition methods of movable storage device, comprising:
When car-mounted terminal detects the operation of insertion movable storage device, the mark letter of the movable storage device is obtained
Breath, the identification information includes the partition information of the movable storage device；
Judge the movable storage device with the presence or absence of multi partition according to the partition information；
If there are single subregions for the movable storage device, the movable storage device is completed according to the identification information
Identification；
If there are multiple subregions for the movable storage device, the files classes of each subregion are obtained according to the identification information
Type completes the identification to the movable storage device according to the file type.
Further, the car-mounted terminal detects whether that the step of insertion movable storage device includes:
When detecting the insertion operation of movable storage device, according to USB specification data pin differential voltage, to the shifting
Dynamic storage equipment is judged；
If judging the movable storage device damage, enters abnormality processing step, stop detection；
If judging, the movable storage device is normal, whole identification is carried out to the movable storage device, in linux system
Generation/sys/dev/block/*:* file completes the searching step of the movable storage device.
Further, the identification information storage is in the hard disk information of the movable storage device, the hard disk information
It is described to judge that the movable storage device includes: with the presence or absence of multi partition according to the partition information including 512byte data
It is read since the address of the hard disk information 0, reads 512byte data；
The data of reading are matched with the partition information；
If the data of the reading match one by one with the partition information, the number of partitions of the movable storage device is obtained
Amount；
If the data of the reading and the partition information mismatch, it is determined that the movable storage device subregion mistake.
Further, it is described according to the file type complete to the identification of the movable storage device before, further includes:
Obtain the file system of each subregion；
It is then described to include: to the identification of the movable storage device according to file type completion
The identification to the movable storage device is completed according to the file system of each subregion and the file type of each subregion.
Further, the file system includes exFAT, FAT32 and NTFS；
It only include a kind of file system in each subregion.
The embodiment of the present invention also provides a kind of multi partition recognition unit of movable storage device, comprising:
Detection module obtains the mark of the movable storage device when for detecting the operation of insertion movable storage device
Know information, the identification information includes the partition information of the movable storage device；
Judgment module, for judging the movable storage device with the presence or absence of multi partition according to the partition information；
Identification module completes institute according to the identification information if there are single subregions for the movable storage device
The identification of movable storage device is stated, if there are multiple subregions for the movable storage device, is obtained according to the identification information each
The file type of subregion completes the identification to the movable storage device according to the file type.
Further, the detection module is specifically used for:
When detecting the insertion operation of movable storage device, according to USB specification data pin differential voltage, to the shifting
Dynamic storage equipment is judged；
If judging the movable storage device damage, enters abnormality processing step, stop detection；
If judging, the movable storage device is normal, whole identification is carried out to the movable storage device, in linux system
Generation/sys/dev/block/*:* file completes the searching step of the movable storage device.
Further, the judging unit is specifically used for:
It is read since the address of the hard disk information 0, reads 512byte data；
The data of reading are matched with the partition information；
If the data of the reading match one by one with the partition information, the number of partitions of the movable storage device is obtained
Amount；
If the data of the reading and the partition information mismatch, it is determined that the movable storage device subregion mistake.
Further, the recognition unit is specifically used for:
Obtain the file system of each subregion；
The identification to the movable storage device is completed according to the file system of each subregion and the file type of each subregion；
Wherein, the file system includes exFAT, FAT32 and NTFS, only includes a kind of text in each subregion
Part system.
The embodiment of the invention also provides a kind of car-mounted terminals, including multi partition recognition unit described above.
Compared with prior art, the present invention beneficial effect is: car-mounted terminal provided in an embodiment of the present invention is inserted in detection
When entering the operation of movable storage device, the identification information of the movable storage device is obtained, is believed according to the subregion in the identification information
Breath judges the movable storage device with the presence or absence of multi partition, if there are single subregions for the movable storage device, according to the mark
Information completes the identification of the movable storage device, if there are multiple subregions for the movable storage device, is obtained according to the identification information
The file type for taking each subregion completes the identification to the movable storage device according to this document type.The embodiment of the present invention is being examined
When measuring movable storage device insertion, the identification information of the movable storage device is obtained, is believed according to the subregion in the identification information
Cease carry out subregion identification to movable storage device, solve in the prior art car-mounted terminal when be inserted into movable storage device
The problem of being able to achieve single subregion identification, cannot identifying daily large capacity movable storage device.
Detailed description of the invention
Fig. 1 is a kind of flow chart of the multi partition recognition methods of movable storage device provided in an embodiment of the present invention；
Fig. 2 be another embodiment of the present invention provides a kind of movable storage device multi partition recognition methods flow chart；
Fig. 3 is a kind of structural schematic diagram of the multi partition recognition unit of movable storage device provided in an embodiment of the present invention.
Specific embodiment
In order to make the objectives, technical solutions, and advantages of the present invention clearer, with reference to the accompanying drawings and embodiments, right
The present invention is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, and
It is not used in the restriction present invention.
Fig. 1 shows a kind of multi partition recognition methods of movable storage device provided in an embodiment of the present invention, comprising:
S101 obtains the mark of the movable storage device when car-mounted terminal detects the operation of insertion movable storage device
Know information, the identification information includes the partition information of the movable storage device；
S102 judges the movable storage device with the presence or absence of multi partition according to the partition information；
S103 completes the movement according to the identification information and deposits if there are single subregions for the movable storage device
Store up the identification of equipment；
S104 obtains the text of each subregion according to the identification information if there are multiple subregions for the movable storage device
Part type completes the identification to the movable storage device according to the file type.
Specifically, as shown in Fig. 2, in step s101, working as vehicle when movable storage device is inserted into car-mounted terminal by USB
When mounted terminal detects the insertion operation of movable storage device, it will be stored according to USB specification data pin differential voltage to mobile
Whether equipment, which is inserted into, is judged, when detecting the movable storage device damage of no equipment insertion or insertion, will be called the roll of the contestants in athletic events different
Normal processing step stops detection.Abnormality processing step is included in car-mounted terminal and the movable storage device is prompted to damage, or passes through
Voice broadcast abnormal conditions etc., wherein prompt movable storage device damage can be by car-mounted terminal in car-mounted terminal
Display unit preset position show fault message.If after the movable storage device for determining insertion is normal, if the vehicle-mounted end
End operation is linux system, then the USB drive module in the car-mounted terminal will first carry out the movable storage device whole
Body identification, and such as/sys/dev/block/*:* class file is generated in linux system, the movable storage device is sought in completion
Look for step.
More specifically, in embodiments of the present invention, which is stored in firmware (the i.e. hard disk letter of movable storage device
Breath) on, i.e., the movable storage device several subregions are divided by user in other terminals, in the subregion there are what file or
Which kind of file type type person's subregion supports be maintained on firmware, when the data or letter saved on the movable storage device
When breath is modified, which is modified together.
In embodiments of the present invention, identification information is stored in hard disk information, and hard disk information includes 512byte data, step
Rapid S102 is specifically included:
The hard disk information for reading the mobile terminal reads since the address of the hard disk information 0, reads 512byte altogether
Data obtain the details of the movable storage device, such as how many subregion；
The 512byte data of reading are carried out with the partition information in identification information than matching；
If the data including subregion in the 512byte data read match one by one with partition information, the movement is obtained
Store the number of partitions of equipment；
If the data and partition information that read mismatch, it is determined that the movable storage device subregion mistake.
More specifically, car-mounted terminal is after reading the 512byte data in movable storage device, obtained partition data with
Partition information in identification information not fully corresponds to, it is possible to store movable storage device subregion modified after, mark letter
The case where breath is not modified, at this point, car-mounted terminal reads the hard disk information of the movable storage device, by the data and mark of reading
The partition data known in information is matched, if the data read match one by one with partition information, then it is assumed that subregion is believed at this time
Breath is accurate, obtains the number of partitions of the movable storage device, if the data read and partition information Incomplete matching, such as reads
Show that the movable storage device includes 4 subregions to data, be A, B, C, D respectively, but display should in the partition information
Movable storage device includes 5 subregions, respectively A, B, C, E, F, then judges the movable storage device subregion mistake, needs weight
Failure is read in new identification or prompt.
In step S104, when determining the movable storage device there are after multiple subregions, car-mounted terminal is according to identification information
The file system and file type for obtaining each subregion are completed according to the file type of acquisition and file system to movable storage device
Identification.Specifically, in the present embodiment, file system includes exFAT, FAT32 and NTFS, only includes one kind in each subregion
File system.
In embodiments of the present invention, after car-mounted terminal completes the identification to movable storage device, it is capable of providing subsequent phase
The operation answered identifies that there are multi partitions in the movable storage device as worked as, and is saved respectively in each subregion just like song, view
Frequently, picture, application program etc., user can carry out as played music, playing video, browsing pictures, installation more new application
Deng operation.
The embodiment of the present invention is further illustrated below by a specific use example:
It detects and mobile hard disk is inserted by USB interface, car-mounted terminal is according to USB specification data pin differential voltage to shifting
Whether dynamic hard disk, which is inserted into, is judged, after judging that the mobile hard disk exists, car-mounted terminal enters multi partition judgement, obtains the shifting
Hard disk information in dynamic hard disk, obtains partition information, which shows that the mobile hard disk includes 4 subregions, while from
Address 0 starts to read, and reads 512byte data altogether, determining the mobile hard disk, there are 4 subregions, by the partition data of reading
It is matched with partition information, the partition data that matching result display is read is consistent with partition information data, then car-mounted terminal will
The file type and file system for obtaining each subregion of the mobile hard disk obtain subregion 1 and store video, the storage of subregion 2 audio, divide
Picture is stored in area 3, subregion 4 stores the information of text document, then car-mounted terminal is completed to identify the subregion of mobile hard disk, and aobvious
Showing and shows that reading is completed and shows corresponding divisional type in unit, user can operate according to the divisional type of display,
Such as play music.
Through the embodiment of the present invention, car-mounted terminal can obtain the movable storage device when being inserted into movable storage device
Subregion, to realize subsequent operation, solve existing car-mounted terminal can only be identified when being inserted into movable storage device it is single
The problem of subregion, while it being based on USB specification, backward compatible function may be implemented.
Specifically, the present invention is suitable for running the car-mounted terminal of not homologous ray, as the car-mounted terminal can carry Linux system
System, Android Android, Microsoft Windows etc., meanwhile, the embodiment of the present invention can be applied in addition to car-mounted terminal other
Application scenarios, such as when including smart phone, Intelligent flat, other terminals of smart television when being inserted into movable storage device, it can
Multi partition identification is carried out in the method provided through the embodiment of the present invention.
Fig. 3 shows a kind of multi partition recognition unit of movable storage device provided in an embodiment of the present invention, comprising:
Detection module 301 obtains the movable storage device when for detecting the operation of insertion movable storage device
Identification information, the identification information include the partition information of the movable storage device；
Judgment module 302, for judging the movable storage device with the presence or absence of multi partition according to the partition information；
Identification module 303 is completed if there are single subregions for the movable storage device according to the identification information
The identification of the movable storage device obtains if there are multiple subregions for the movable storage device according to the identification information
The file type of each subregion completes the identification to the movable storage device according to the file type.
Further, detection module 301 is specifically used for:
When detecting the insertion operation of movable storage device, according to USB specification data pin differential voltage, to the shifting
Dynamic storage equipment is judged；
If judging the movable storage device damage, enters abnormality processing step, stop detection；
If judging, the movable storage device is normal, whole identification is carried out to the movable storage device, in linux system
Generation/sys/dev/block/*:* file completes the searching step of the movable storage device.
Further, judging unit 302 is specifically used for:
It is read since the address of the hard disk information 0, reads 512byte data；
The data of reading are matched with the partition information；
If the data of the reading match one by one with the partition information, the number of partitions of the movable storage device is obtained
Amount；
If the data of the reading and the partition information mismatch, it is determined that the movable storage device subregion mistake.
Further, recognition unit 303 is specifically used for:
Obtain the file system of each subregion；
The identification to the movable storage device is completed according to the file system of each subregion and the file type of each subregion；
Wherein, the file system includes exFAT, FAT32 and NTFS, only includes a kind of text in each subregion
Part system.
The embodiment of the invention also provides a kind of car-mounted terminals, including multi partition recognition unit shown in Fig. 2.
The embodiment of the invention also provides a kind of terminal, including memory, processor and storage on a memory and are being located
The computer program run on reason device realizes the more of movable storage device as shown in Figure 1 when processor executes computer program
Each step of subregion recognition methods.
A kind of readable storage medium storing program for executing is also provided in the embodiment of the present invention, is stored thereon with computer program, the computer
When program is executed by processor, each step of the multi partition recognition methods of movable storage device as shown in Figure 1 is realized.
It, can also be in addition, each functional module in each embodiment of the present invention can integrate in a processing module
It is that modules physically exist alone, can also be integrated in two or more modules in a module.Above-mentioned integrated mould
Block both can take the form of hardware realization, can also be realized in the form of software function module.
If the integrated module is realized in the form of software function module and sells or use as independent product
When, it can store in a computer readable storage medium.Based on this understanding, technical solution of the present invention is substantially
The all or part of the part that contributes to existing technology or the technical solution can be in the form of software products in other words
It embodies, which is stored in a storage medium, including some instructions are used so that a computer
Equipment (can be personal computer, server or the network equipment etc.) executes the complete of each embodiment the method for the present invention
Portion or part steps.And storage medium above-mentioned includes: USB flash disk, mobile hard disk, read-only memory (ROM, Read-Only
Memory), random access memory (RAM, Random Access Memory), magnetic or disk etc. are various can store journey
The medium of sequence code.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention
Made any modifications, equivalent replacements, and improvements etc., should all be included in the protection scope of the present invention within mind and principle.
Claims (10)
1. a kind of multi partition recognition methods of movable storage device characterized by comprising
When car-mounted terminal detects the operation of insertion movable storage device, the identification information of the movable storage device, institute are obtained
State the partition information that identification information includes the movable storage device；
Judge the movable storage device with the presence or absence of multi partition according to the partition information；
If there are single subregions for the movable storage device, the knowledge of the movable storage device is completed according to the identification information
Not；
If there are multiple subregions for the movable storage device, the file type of each subregion, root are obtained according to the identification information
The identification to the movable storage device is completed according to the file type.
2. multi partition recognition methods as described in claim 1, which is characterized in that the car-mounted terminal detects whether insertion movement
Store equipment the step of include:
When detecting the insertion operation of movable storage device, according to USB specification data pin differential voltage, the movement is deposited
Storage equipment is judged；
If judging the movable storage device damage, enters abnormality processing step, stop detection；
If judging, the movable storage device is normal, carries out whole identification to the movable storage device, raw in linux system
At the file of/sys/dev/block/*:*, the searching step of the movable storage device is completed.
3. multi partition recognition methods as described in claim 1, which is characterized in that the identification information storage is deposited in the movement
In the hard disk information for storing up equipment, the hard disk information includes 512byte data, described to judge the shifting according to the partition information
Storage equipment, which is moved, with the presence or absence of multi partition includes:
It is read since the address of the hard disk information 0, reads 512byte data；
The data of reading are matched with the partition information；
If the data of the reading match one by one with the partition information, the number of partitions of the movable storage device is obtained；
If the data of the reading and the partition information mismatch, it is determined that the movable storage device subregion mistake.
4. multi partition recognition methods as described in claim 1, which is characterized in that described to be completed according to the file type to institute
Before the identification for stating movable storage device, further includes:
Obtain the file system of each subregion；
It is then described to include: to the identification of the movable storage device according to file type completion
The identification to the movable storage device is completed according to the file system of each subregion and the file type of each subregion.
5. multi partition recognition methods as claimed in claim 4, which is characterized in that the file system includes exFAT, FAT32
And NTFS；
It only include a kind of file system in each subregion.
6. a kind of multi partition recognition unit of movable storage device characterized by comprising
Detection module when for detecting the operation of insertion movable storage device, obtains the mark letter of the movable storage device
Breath, the identification information includes the partition information of the movable storage device；
Judgment module, for judging the movable storage device with the presence or absence of multi partition according to the partition information；
Identification module completes the shifting according to the identification information if there are single subregions for the movable storage device
The identification of dynamic storage equipment obtains each subregion according to the identification information if there are multiple subregions for the movable storage device
File type, identification to the movable storage device is completed according to the file type.
7. multi partition recognition unit as claimed in claim 6, which is characterized in that the detection module is specifically used for:
When detecting the insertion operation of movable storage device, according to USB specification data pin differential voltage, the movement is deposited
Storage equipment is judged；
If judging the movable storage device damage, enters abnormality processing step, stop detection；
If judging, the movable storage device is normal, carries out whole identification to the movable storage device, raw in linux system
At the file of/sys/dev/block/*:*, the searching step of the movable storage device is completed.
8. multi partition recognition unit as claimed in claim 6, which is characterized in that the judging unit is specifically used for:
It is read since the address of the hard disk information 0, reads 512byte data；
The data of reading are matched with the partition information；
If the data of the reading match one by one with the partition information, the number of partitions of the movable storage device is obtained；
If the data of the reading and the partition information mismatch, it is determined that the movable storage device subregion mistake.
9. multi partition recognition unit as claimed in claim 6, which is characterized in that the recognition unit is specifically used for:
Obtain the file system of each subregion；
The identification to the movable storage device is completed according to the file system of each subregion and the file type of each subregion；
Wherein, the file system includes exFAT, FAT32 and NTFS, only includes a kind of file system in each subregion
System.
10. a kind of car-mounted terminal, which is characterized in that including the described in any item multi partition recognition units of claim 5 to 9.
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| CN201810687872.8A CN109101435A (en) | 2018-06-28 | 2018-06-28 | The multi partition recognition methods of movable storage device and system, car-mounted terminal |
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| CN201810687872.8A CN109101435A (en) | 2018-06-28 | 2018-06-28 | The multi partition recognition methods of movable storage device and system, car-mounted terminal |
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| CN112199236B (en) * | 2020-09-30 | 2024-05-28 | 万兴科技集团股份有限公司 | System data identification method and device, computer equipment and storage medium |
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Application publication date: 20181228 |