Vehicle-mounted file management method, device, terminal equipment, and readable storage medium

Abstract

The embodiment of the present application discloses a vehicle-mounted file management method, apparatus, terminal device, and readable storage medium. The vehicle-mounted file management method includes: delaying the start of video recording, traversing the video recording folders in the memory card, determining the file information in each video recording folder, creating a file list corresponding to each video recording folder in the memory of the vehicle-mounted system, and after starting the video recording, recording to obtain new video recording data, detecting whether the storage capacity of the memory card is less than a preset value, and if so, storing the new video recording data in the memory card, and adding the file information of the new video recording data to the corresponding file list. The vehicle-mounted file management method of the present application can not only quickly respond to user operations, but also will not periodically increase the CPU usage, thereby avoiding other functions being affected by the traversal of the memory card. In addition, there will be no unnecessary reading and writing of the memory card, which can increase the service life of the overall equipment and thus reduce the cost of use.

Description

Technical Field

[0001] The present invention relates to the field of vehicle-mounted systems, and in particular to a vehicle-mounted file management method, device, terminal equipment and readable storage medium. Background Art

[0002] Currently, similar in-vehicle systems use two common approaches to DVR file management: The first involves re-traversing the corresponding folder for each acquisition and returning the traversed data; the second involves storing the traversed file data in a database and returning the database data directly when the user retrieves it.

[0003] For the first solution, each time the memory card is traversed, the device's CPU (central processing unit) will be occupied at a relatively high level in a short period of time. When the CPU is under pressure, the entire device will fail to operate properly. In addition, each time the memory card is traversed, if the memory card has a large capacity, the traversal will take a long time, which will affect the user experience.

[0004] For the second solution, the database is stored in flash (Flash EEPROM, storage chip), and the flash will be updated every time new data is generated. Since the read and write times of flash are limited, the service life of the product will be reduced. Summary of the Invention

[0005] In a first aspect, the present invention provides a vehicle-mounted file management method, which is applied to a vehicle-mounted system. The method comprises:

[0006] Delay the start of recording, traverse the recording folders in the memory card, and determine the file information in each recording folder;

[0007] Creating a file list corresponding to each of the video folders in a memory of the vehicle-mounted system to store the file information;

[0008] After starting the video recording, the video recording is performed to obtain new video data;

[0009] Detecting whether the storage capacity of the memory card is less than a preset value;

[0010] When the storage capacity is less than the preset value, the new video data is stored in the memory card, and the file information of the new video data is added to the corresponding file list in the memory.

[0011] In an optional embodiment, before traversing each video folder in the memory card, the method further includes:

[0012] When a memory card is detected, all file information previously saved in the internal memory is deleted.

[0013] In an optional embodiment, the method further comprises:

[0014] When the storage capacity is greater than or equal to the preset value, the historical file information with the earliest creation time is obtained from the corresponding type file list corresponding to the new video data, the historical video data corresponding to the historical file information in the storage card is deleted, and the corresponding type file list is updated according to the new video data.

[0015] In an optional implementation manner, before updating the corresponding type file list according to the new video data, the method further includes:

[0016] Based on the creation time of each file information in the corresponding type file list, the files are sorted in sequence to obtain a new file list, and the new file list is used to perform an update operation according to the new video data.

[0017] In an optional implementation manner, adding the file information of the new video data to the corresponding file list in the memory includes:

[0018] Determine the corresponding video folder and file information according to the new video data;

[0019] Determine a corresponding file list in the memory based on the video folder;

[0020] Add the file information to the file list.

[0021] In an optional embodiment, the method further comprises:

[0022] When a file list query request is received, the file list corresponding to the file list query request is sent to the vehicle computer, so that the vehicle computer displays the file information according to the file list.

[0023] In an optional embodiment, the method further comprises:

[0024] When an instruction to delete a recorded file is received, the file information in the file list corresponding to the recorded file is deleted, and the file list is updated.

[0025] In a second aspect, the present invention provides a vehicle-mounted file management device, which is applied to a vehicle-mounted system, and the device includes:

[0026] The traversal module is used to delay the video self-start, traverse the video folders in the memory card, and determine the file information in each video folder;

[0027] A creation module, configured to create a file list corresponding to each of the video folders in a memory of the vehicle-mounted system to store the file information;

[0028] The recording module is used to record and obtain new video data after starting the video recording;

[0029] A detection module, configured to detect whether the storage capacity of the memory card is less than a preset value;

[0030] An adding module is used to store the new video data in the memory card when the storage capacity is less than the preset value, and to add the file information of the new video data to the corresponding file list in the memory.

[0031] In a third aspect, the present invention provides a terminal device comprising a memory and a processor, wherein the memory stores a computer program, and the computer program executes the vehicle-mounted file management method when running on the processor.

[0032] In a fourth aspect, the present invention provides a readable storage medium storing a computer program, which executes the vehicle-mounted file management method when running on a processor.

[0033] The embodiments of the present application have the following beneficial effects:

[0034] The embodiments of the present application provide a vehicle-mounted file management method, apparatus, terminal device, and readable storage medium. By delaying the video recording self-start, the video recording folders in the memory card are traversed to determine the file information in each video recording folder. A file list corresponding to each video recording folder is created in the memory of the vehicle-mounted system to save the file information. After starting the video recording, the video recording is performed to obtain new video recording data. It is detected whether the storage capacity of the memory card is less than a preset value. When the storage capacity is less than the preset value, the new video recording data is stored in the memory card, and the file information of the new video recording data is added to the corresponding file list in the memory. The vehicle-mounted file management method of the present application can not only quickly respond to user operations, but also will not periodically increase the CPU usage, thereby avoiding other functions being affected by the traversal of the memory card. In addition, there will be no unnecessary reading and writing of the memory card, which can increase the service life of the overall device and thus reduce the cost of use.

[0035] In order to make the above-mentioned objects, features and advantages of the present application more obvious and easy to understand, preferred embodiments are given below and described in detail with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] In order to more clearly illustrate the technical solution of the present invention, the following is a brief introduction to the drawings required for use in the embodiments. It should be understood that the following drawings only illustrate certain embodiments of the present invention and should not be regarded as limiting the scope of protection of the present invention. In each of the drawings, similar components are numbered similarly.

[0037] Figure 1A first flow chart of a vehicle-mounted file management method proposed in an embodiment of the present application is shown;

[0038] Figure 2 A second flow chart of a vehicle-mounted file management method proposed in an embodiment of the present application is shown;

[0039] Figure 3 A third flow chart of a vehicle-mounted file management method proposed in an embodiment of the present application is shown;

[0040] Figure 4 A schematic diagram showing the process of adding file information in a vehicle-mounted file management method proposed in an embodiment of the present application is shown;

[0041] Figure 5 A structural diagram of a vehicle-mounted file management device proposed in an embodiment of the present application is shown.

[0042] Description of main component symbols:

[0043] 10-In-vehicle file management device; 11-Traversal module; 12-Creation module; 13-Recording module; 14-Detection module; 15-Add module. DETAILED DESCRIPTION

[0044] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0045] The components of the embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a variety of different configurations. Therefore, the following detailed description of the embodiments of the present invention provided in the figures is not intended to limit the scope of the claimed invention, but rather merely represents selected embodiments of the present invention. All other embodiments derived by those skilled in the art based on the embodiments of the present invention without inventive effort are intended to be within the scope of protection of the present invention.

[0046] Hereinafter, the terms "including", "having" and their cognates, which may be used in various embodiments of the present invention, are intended only to indicate specific features, numbers, steps, operations, elements, components or combinations of the foregoing items, and should not be understood as first excluding the existence of one or more other features, numbers, steps, operations, elements, components or combinations of the foregoing items or the possibility of adding one or more features, numbers, steps, operations, elements, components or combinations of the foregoing items.

[0047] Furthermore, the terms “first,” “second,” “third,” etc., are merely used for distinguishing descriptions and are not to be understood as indicating or implying relative importance.

[0048] Unless otherwise defined, all terms used herein (including technical and scientific terms) have the same meaning as commonly understood by those skilled in the art to which the various embodiments of the present invention pertain. The terms (such as those defined in generally used dictionaries) will be interpreted as having the same meaning as in the context of the relevant technical field and will not be interpreted as having an idealized meaning or an overly formal meaning unless clearly defined in the various embodiments of the present invention.

[0049] Example 1

[0050] Please refer to Figure 1 , an embodiment of the present application proposes a vehicle-mounted file management method, which is applied to a vehicle-mounted system. Exemplarily, the vehicle-mounted file management method includes the following steps.

[0051] Step S110: delay the video recording self-start, traverse the video recording folders in the memory card, and determine the file information in each video recording folder.

[0052] It is understood that after the vehicle-mounted system is powered on, that is, after the vehicle-mounted system is powered on, the dashcam's automatic recording will be delayed. Before the automatic recording is started, the vehicle-mounted system will scan the memory card after detecting it. For example, the vehicle-mounted system may scan the memory card immediately after powering on, or it may scan the memory card after a period of time after powering on, or it may scan the memory card again after detecting that the memory card has been reinserted.

[0053] The memory card contains at least one video folder, each corresponding to a type of video data. Each video folder contains video data of that type recorded by the dashcam. In other words, different types of video data are stored in different video folders, and each video data includes corresponding file information, including file name, file size, total number of files, and file path. Therefore, traversing the memory card is a complete traversal of each video folder in the memory card. After the traversal is complete, the corresponding file information of all video data in each video folder in the memory card is obtained. Memory cards include but are not limited to SD (Secure Digital) cards, microSD cards, and T-Flash (TransFlash) cards.

[0054] Exemplarily, when three types of video folders are saved in the memory card, they may be NOR folder, EVT folder, and PHO folder, wherein the NOR folder is a normal video folder, which is used to save the data recorded by the driving recorder when the vehicle is driving normally, that is, the normal type of data; the EVT folder is an emergency video folder, that is, emergency type of data, which is used to save the data recorded when the vehicle encounters an emergency, such as video data recorded when the vehicle collides or is violently bumped; the PHO folder is a snapshot folder, that is, snapshot data, which is used to save the image data captured by the driving recorder during the recording process.

[0055] Among them, Figure 2 As shown, before step S110, step S210 is also included:

[0056] Step S210: When it is detected that the memory card is inserted, all file information previously stored in the memory is deleted.

[0057] In this embodiment, after the vehicle system is powered on, the user may remove the memory card and insert the memory card into a computer, and perform some operations on the computer, such as deleting some or all files stored in the memory card, or re-copying a file including other content to the memory card, thereby changing the data in the memory card.

[0058] When there is no memory card in the vehicle system, that is, when there is no memory card in the driving recorder, a memory card needs to be inserted before normal use. When the vehicle system detects that a memory card has been inserted, the inserted memory card may be a new memory card, an old memory card that has been used before, or a processed memory card. At this time, the data in the memory card may be different from the data previously cached in the memory of the vehicle system. Therefore, before recording the video data, all file information previously stored in the memory will be deleted, and the video files in the inserted memory card will be traversed to ensure that the file information stored in the memory corresponds to the video data in the memory card one by one. This avoids the inability to update the file information in the memory in real time, resulting in the user inserting or replacing the memory card and returning data that is different from the actual content, thereby resulting in a poor user experience.

[0059] Step S120: creating a file list corresponding to each video folder in the memory of the vehicle system to store file information.

[0060] A file list corresponding to each video folder is created in the vehicle system's memory. This file list stores the file information for the video data in the corresponding video folder. In other words, each file list stores file information for a specific type of video data. After the vehicle system iterates through the inserted memory cards, it stores the file information for the video data in each video folder in the corresponding file list.

[0061] Step S130: After starting the video recording, the video recording is performed to obtain new video data.

[0062] In this embodiment, after the video recording is started, the video recording is performed, thereby obtaining new video data. There are various types of video data, such as emergency video data when a collision or severe bump occurs, ordinary video data, or snapshot data corresponding to a captured image.

[0063] Step S140: Detect whether the storage capacity of the memory card is less than a preset value.

[0064] When preparing to add new video data to a memory card, it is necessary to first determine whether the storage capacity of the memory card is less than a preset value. The storage capacity represents the amount of storage space occupied by the memory card. The preset value can be set based on actual needs. For example, the preset value can be a value corresponding to the storage space of the memory card or a value less than the storage space of the memory card. The storage space represents the maximum storage capacity of the memory card. For example, the storage space of a memory card can typically be 16GB, 32GB, 64GB, 128GB, 200GB, 256GB, and 400GB. For example, if the storage space of the memory card is 32GB, the preset value can be set to 30GB, which is less than the storage space of the memory card. In this case, it will be determined whether the actual storage capacity of the memory card is less than 30GB.

[0065] Step S150: When the storage capacity is less than the preset value, the new video data is stored in the memory card, and the file information of the new video data is added to the corresponding file list in the memory.

[0066] It can be understood that when the storage capacity is less than the preset value, it means that there is space in the memory card to save new video data. Therefore, the new video data is saved in the memory card, and the corresponding file information, such as file size, file path, and file name, can be determined based on the new video data.

[0067] Among them, Figure 3 As shown, adding the file information of the new video data to the corresponding file list in the memory specifically includes sub-steps S151 to S153.

[0068] Sub-step S151: Determine the corresponding video folder and file information according to the new video data.

[0069] It is understandable that after obtaining new video data, the corresponding video folder can be determined according to the type of the new video data, and the corresponding file information of the new video data can also be determined, such as the file path, file name, and file size of the new video data.

[0070] Sub-step S152: Determine a corresponding file list in the memory based on the video folder.

[0071] Each video folder corresponds to a file list one-to-one. Therefore, after the video folder of the new video data is determined, the corresponding file list can be determined according to the determined video folder.

[0072] Sub-step S153: Add the file information to the file list.

[0073] In this embodiment, when the new video data is stored in the memory card, the file information of the new video data is added to the corresponding file list.

[0074] Exemplarily, when the file recording folder includes a NOR folder, an EVT folder, and a PHO folder, and the new recording data is video data recorded when the vehicle collides or is violently bumped, the new recording data should be saved in the EVT folder in the memory card, that is, the emergency recording folder. In other words, the file information of the new recording data should be added to the file list corresponding to the emergency recording folder.

[0075] like Figure 4 As shown, the vehicle-mounted file management method further includes step S160.

[0076] Step S160: When the storage capacity is greater than or equal to the preset value, obtain the historical file information with the earliest creation time from the corresponding type file list corresponding to the new video data, delete the historical video data corresponding to the historical file information in the memory card, and update the corresponding type file list according to the new video data.

[0077] It can be understood that when the storage capacity of the memory card is greater than the preset value, the file list of the corresponding type of the new video data in the vehicle's memory will be determined based on the new video data, and the historical file information with the earliest creation time in the corresponding type of file list will be obtained, and the corresponding historical video data in the memory card will be determined based on the historical file information, and the historical video data will be deleted. Then, the file list of the corresponding type in the memory will be updated based on the new video data saved in the memory card. In other words, the file information corresponding to the new video data will be added to the corresponding type of file list.

[0078] Before updating the list of files to be written according to the new video data, step S310 may be further included.

[0079] Step S310: sorting the file information in the corresponding type file list based on the creation time to obtain a new file list, which is used for updating according to the new video data.

[0080] It is understandable that after deleting the historical video data corresponding to the historical file information in the memory card, the file list will be sorted according to the creation time of each file information. In other words, the corresponding type of file information will be sorted according to the creation time of the video data in the memory card, and a new file list can be obtained. The new file list is used to perform update operations based on the new video data. Among them, the sorting can be carried out in order from early to late or from late to early by creation time. After re-sorting, the vehicle-mounted system can overwrite the video data with the earliest creation time and the corresponding file information when performing loop recording. The next time the video data with the earliest creation time needs to be deleted, the first file information or the last file information in the corresponding file list can be directly obtained.

[0081] In this embodiment, when a user actively requests a file list, the vehicle computer sends a file list query request to the vehicle system. Upon receiving the file list query request, the vehicle system sends the file list corresponding to the file list query request to the vehicle computer, which then displays the file list based on the file information in the file list. The term "vehicle computer" refers to the in-vehicle infotainment system installed in a car. The vehicle computer functionally enables information communication between the user and the vehicle, and between the vehicle and the outside world (vehicle to vehicle).

[0082] When the user actively requests to delete the file corresponding to the video data, only the corresponding file information in the file list corresponding to the video data is needed, and the file list is updated after deletion to facilitate subsequent operations.

[0083] In the embodiment of the present application, only one traversal of the memory card is required. After the user issues a request, the data stored in the vehicle system can be immediately fed back. It can quickly respond to user operations, and the time taken for traversal of memory cards of different sizes is different only during the first traversal. The other times are not related to the capacity of the memory card. This embodiment will not produce periodic increases in CPU usage, thereby avoiding other functions being affected by the traversal of the memory card, and will not perform unnecessary reading and writing on the memory card, which can increase the service life of the entire device and thus reduce the user's cost of use. In addition, the user can get the latest results every time they access, and the real-time nature of the data will not be affected by the user taking out the memory card, thereby avoiding affecting the user's experience.

[0084] Based on the above-mentioned vehicle-mounted file management method, Figure 5 The structure diagram of a vehicle-mounted file management device 10 provided in an embodiment of the present application is also shown, which is applied to a vehicle-mounted system. The vehicle-mounted file management device 10 includes:

[0085] A traversal module 11 is used to delay the video recording self-start, traverse the video folders in the memory card, and determine the file information in each video folder;

[0086] A creation module 12, configured to create a file list corresponding to each video folder in the memory of the vehicle-mounted system to store file information;

[0087] The recording module 13 is used to record and obtain new video data after starting the video recording;

[0088] A detection module 14 is used to detect whether the storage capacity of the memory card is less than a preset value;

[0089] The adding module 15 is used to store the new video data in the memory card when the storage capacity is less than a preset value, and add the file information of the new video data to the corresponding file list in the memory.

[0090] The implementation schemes and beneficial effects involved in the above embodiments are also applicable to this embodiment and will not be described in detail here.

[0091] In addition, the present application also proposes a terminal device, including a memory and a processor, wherein the memory stores a computer program, and when the computer program runs on the processor, the vehicle-mounted file management method of the above embodiment is executed.

[0092] The present application also provides a readable storage medium for storing a computer program used in a computer device. When the computer program runs on a processor, the vehicle-mounted file management method of the above embodiment is executed.

[0093] In the several embodiments provided in this application, it should be understood that the disclosed devices and methods can also be implemented in other ways. The device embodiments described above are merely schematic. For example, the flowcharts and structure diagrams in the accompanying drawings show the possible architectures, functions and operations of the devices, methods and computer program products according to multiple embodiments of the present invention. In this regard, each box in the flowchart or block diagram can represent a module, a program segment or a part of the code, and the module, program segment or a part of the code contains one or more executable instructions for implementing the specified logical functions. It should also be noted that in an alternative implementation, the functions marked in the box can also occur in an order different from that marked in the accompanying drawings. For example, two consecutive boxes can actually be executed substantially in parallel, and they can sometimes be executed in the opposite order, depending on the functions involved. It should also be noted that each box in the structure diagram and / or flowchart, and the combination of boxes in the structure diagram and / or flowchart, can be implemented using a dedicated hardware-based system that performs the specified function or action, or can be implemented using a combination of dedicated hardware and computer instructions.

[0094] In addition, the functional modules or units in the various embodiments of the present invention may be integrated together to form an independent part, or each module may exist independently, or two or more modules may be integrated to form an independent part.

[0095] If the functions are implemented in the form of software function modules and sold or used as independent products, they can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present invention, or the part that contributes to the prior art, or the part of the technical solution, can be embodied in the form of a software product. The computer software product is stored in a storage medium and includes several instructions for enabling a computer device (which can be a smart phone, a personal computer, a server, or a network device, etc.) to perform all or part of the steps of the method described in each embodiment of the present invention. The aforementioned storage medium includes various media that can store program codes, such as a USB flash drive, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk.

[0096] The above description is only a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with this technical field can easily think of changes or replacements within the technical scope disclosed by the present invention, which should be covered by the scope of protection of the present invention.

Claims

1. A vehicle-mounted file management method, characterized in that: Applied to an in-vehicle system, the method includes: Delaying the video recording self-start, traversing the video recording folders in the memory card, and determining the file information in each video recording folder; before traversing each video recording folder in the memory card, the method further includes: When a memory card is detected to be inserted, all file information previously saved in the memory will be deleted; Creating a file list corresponding to each of the video folders in a memory of the vehicle-mounted system to store the file information; After starting the video recording, the video recording is performed to obtain new video data; Detecting whether the storage capacity of the memory card is less than a preset value; When the storage capacity is less than the preset value, the new video data is stored in the memory card, and the file information of the new video data is added to the corresponding file list in the memory; The method further comprises: When the storage capacity is greater than or equal to the preset value, the historical file information with the earliest creation time is obtained from the corresponding type file list corresponding to the new video data, the historical video data corresponding to the historical file information in the storage card is deleted, and the corresponding type file list is updated according to the new video data.

2. The vehicle-mounted file management method according to claim 1, characterized in that: Before updating the corresponding type file list according to the new video data, the method further includes: Based on the creation time of each file information in the corresponding type file list, the files are sorted in sequence to obtain a new file list, and the new file list is used to perform an update operation according to the new video data.

3. The vehicle-mounted file management method according to claim 1, characterized in that: The step of adding the file information of the new video data to the corresponding file list in the memory includes: Determine the corresponding video folder and file information according to the new video data; Determine a corresponding file list in the memory based on the video folder; Add the file information to the file list.

4. The vehicle-mounted file management method according to claim 1, characterized in that: Also includes: When a file list query request is received, the file list corresponding to the file list query request is sent to the vehicle computer, so that the vehicle computer displays the file information according to the file list.

5. The vehicle-mounted file management method according to claim 1, characterized in that: Also includes: When an instruction to delete a recorded file is received, the file information in the file list corresponding to the recorded file is deleted, and the file list is updated.

6. A vehicle-mounted file management device, characterized in that: Applied to an in-vehicle system, the device includes: The traversal module is used to delay the video self-start, traverse the video folders in the memory card, and determine the file information in each video folder; before traversing each video folder in the memory card, it also includes: When a memory card is detected to be inserted, all file information previously saved in the memory will be deleted; A creation module, configured to create a file list corresponding to each of the video folders in a memory of the vehicle-mounted system to store the file information; The recording module is used to record and obtain new video data after starting the video recording; A detection module, configured to detect whether the storage capacity of the memory card is less than a preset value; an adding module, configured to store the new video data in the memory card and add the file information of the new video data to a corresponding file list in the memory when the storage capacity is less than the preset value; The device is also used to obtain the historical file information with the earliest creation time from the corresponding type file list corresponding to the new video data when the storage capacity is greater than or equal to the preset value, delete the historical video data corresponding to the historical file information in the storage card, and update the corresponding type file list according to the new video data.

7. A terminal device, characterized in that: The vehicle-mounted file management method comprises a memory and a processor, wherein the memory stores a computer program, and when the computer program is run on the processor, the vehicle-mounted file management method according to any one of claims 1 to 5 is executed.

8. A readable storage medium, characterized in that: The device stores a computer program, which, when running on a processor, executes the vehicle-mounted file management method according to any one of claims 1 to 5.

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