CN117093543A - Car language screen file management system, file management method and equipment - Google Patents

Car language screen file management system, file management method and equipment Download PDF

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Publication number
CN117093543A
CN117093543A CN202311357700.1A CN202311357700A CN117093543A CN 117093543 A CN117093543 A CN 117093543A CN 202311357700 A CN202311357700 A CN 202311357700A CN 117093543 A CN117093543 A CN 117093543A
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China
Prior art keywords
program
file
list
album
json
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CN202311357700.1A
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Chinese (zh)
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蔡俊
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Nanjing Kukai Smart Screen Technology Co ltd
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Nanjing Kukai Smart Screen Technology Co ltd
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Priority to CN202311357700.1A priority Critical patent/CN117093543A/en
Publication of CN117093543A publication Critical patent/CN117093543A/en
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    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F16/00—Information retrieval; Database structures therefor; File system structures therefor
    • G06F16/10—File systems; File servers
    • G06F16/11—File system administration, e.g. details of archiving or snapshots
    • G06F16/122—File system administration, e.g. details of archiving or snapshots using management policies
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F16/00—Information retrieval; Database structures therefor; File system structures therefor
    • G06F16/10—File systems; File servers
    • G06F16/16—File or folder operations, e.g. details of user interfaces specifically adapted to file systems
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F16/00—Information retrieval; Database structures therefor; File system structures therefor
    • G06F16/10—File systems; File servers
    • G06F16/16—File or folder operations, e.g. details of user interfaces specifically adapted to file systems
    • G06F16/162—Delete operations
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F16/00—Information retrieval; Database structures therefor; File system structures therefor
    • G06F16/10—File systems; File servers
    • G06F16/17—Details of further file system functions
    • G06F16/174—Redundancy elimination performed by the file system
    • G06F16/1744—Redundancy elimination performed by the file system using compression, e.g. sparse files
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F16/00—Information retrieval; Database structures therefor; File system structures therefor
    • G06F16/10—File systems; File servers
    • G06F16/17—Details of further file system functions
    • G06F16/174—Redundancy elimination performed by the file system
    • G06F16/1748—De-duplication implemented within the file system, e.g. based on file segments
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F21/00—Security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
    • G06F21/60—Protecting data
    • G06F21/62—Protecting access to data via a platform, e.g. using keys or access control rules
    • G06F21/6218—Protecting access to data via a platform, e.g. using keys or access control rules to a system of files or objects, e.g. local or distributed file system or database

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  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Databases & Information Systems (AREA)
  • General Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Data Mining & Analysis (AREA)
  • Human Computer Interaction (AREA)
  • Health & Medical Sciences (AREA)
  • Bioethics (AREA)
  • General Health & Medical Sciences (AREA)
  • Computer Hardware Design (AREA)
  • Computer Security & Cryptography (AREA)
  • Software Systems (AREA)
  • Information Transfer Between Computers (AREA)

Abstract

The invention provides a program management method, which adopts a fatfs file system to manage the whole equipment end memory through json files in the equipment end memory, in particular to a car logo file management system, a file management method and equipment. The car logo file management system comprises: program package, file folder named by number of single program, album, json format file named by album plus album number, total resource list file, json format file named program list, and program number, version number and program id of all program packages capable of being normally played at equipment end. The file is used for management of program package downloads. Stored in a memory of the vehicle voice screen equipment. The invention provides the following experience for the clients: diversified contents, real-time updating, user definition and safety, and practical difficulties in compatibility and performance of car language screens and broadcasting control management are considered.

Description

Car language screen file management system, file management method and equipment
Technical Field
The invention belongs to the technical field of intelligent vehicle-mounted display, and particularly relates to a vehicle language screen file management system, a file management method and device.
Background
In recent years, with the heating of new energy automobiles in the consumer field, intelligent vehicle-mounted devices are also widely used.
Along with the increase of driving experience demands, effective interaction outside the vehicle obtains more driving fun, and also becomes an important direction of development of intelligent vehicle-mounted equipment, and the traditional use of prompt languages such as 'novice on the road', 'pregnant woman in the vehicle', and the like generally brings certain cleaning difficulty to the vehicle body through the modes of paper sticking and the like, so that personalized, customized and freely switched experiences cannot be realized. The appearance of the car language screen (car-mounted interactive screen) effectively solves the problems. Unlike traditional car lights, the car logo screen is a novel car light, can show characters, patterns, animation etc. and provides more fun driving experience for users.
The existing technology for managing the downloading of the car logo file mainly relates to an android and linux system, and is high in hardware cost and high in energy consumption. The invention relates to mcu:esp32s3 supported by a freertos system with lower cost performance, which provides higher cost performance while meeting the requirements of vehicle regulations.
Designing car logos to support downloading and decompressing zip format files as a program for screen play is a potential invention. The vehicle entertainment system can bring more flexibility and personalized selection to the vehicle entertainment system, and provide richer content and better user experience. This idea requires careful consideration of security, compatibility, and user interface challenges.
Disclosure of Invention
The invention provides a program management method, which adopts a fatfs file system to manage the whole equipment end memory through json (JavaScript Object Notation, JS object numbered musical notation) files in the equipment end memory, and particularly relates to a car language screen file management system, a file management method and equipment.
In one aspect of the present invention, there is provided a vehicle logo file management system comprising:
the program package, the file folder named by the number of the single program, contains the program file and a json format file named as program, is used for playing the program and is stored in a memory of the vehicle voice screen equipment end.
Album, the json format file named album plus album number, contains a group of program numbers, shows the program playing sequence in album, and according to the file playing program, stores in the memory of the vehicle language screen equipment end.
The total resource list file, a json format file named program_list, contains the program numbers, version numbers and program ids of all program packages which can be normally played at the equipment end. The file is used for management of program package downloads. Stored in a memory of the vehicle voice screen equipment.
The program id is used for acquiring a download address of a program packet and an md5 check code, and the md5 code is used for checking the authenticity of an actually acquired compressed packet.
The total resource list file can be acquired by the server and is used for comparing the resources of the program package with the program list of the server side so as to add, delete and modify the program package.
The program file comprises gif, jpg/jpeg and mjpg, and is a bin format file of a combined program and a font library. The json format file named program contains the playing parameters of the program file, wherein the playing parameters comprise the playing cycle times of the file and the like.
The invention provides a second development, which provides a vehicle voice screen file management method, comprising the following steps:
and uploading the program package, wherein a user makes a custom program or a program built in a default system through the APP, and uploading the program to the server after compression of a background Zip format.
Program package management at car logo equipment end:
resource comparison of program packages: the server acquires the total resource of the program package of the vehicle voice screen equipment end, reads the program_list.json content of the equipment end, and compares the program_list with the program list of the server end, so that the program package is added, deleted and changed.
Deleting the program package: if the program number does not exist in the program list of the server side and the program number exists in the program_list.json of the car logo equipment side, deleting the program number in the car logo equipment side, and removing the corresponding program number, version number and program id in the program_list.json of the equipment side.
Downloading program packages: if the program number of the server program list does not exist in the equipment program_list.json, the program package is downloaded, and the program number, the corresponding version number and the program id are newly added in the equipment program_list.json.
Updating program package: if the version number of a program package at the server is different from the version number of the program in the program_list.json of the vehicle language screen equipment, deleting the original program package at the vehicle language screen equipment, downloading a new program package, and updating the version number corresponding to the program number in the program_list.json of the vehicle language screen equipment.
Further, the car logo file management method further comprises the following steps:
updating the content of the album: acquiring album content of the equipment end from a server end, comparing the album content with the album in json format of the same program number of the equipment end, and if the sequence of the program numbers or the members are different, updating the album content of the equipment end; if the equipment end does not have the album of the program number, generating a new album to the equipment end; if the device side has an album which does not exist at the server side, deleting the json file of the album.
The invention provides a vehicle language screen file management device, which comprises a vehicle language screen device end, a server end and a user APP end, wherein the vehicle language screen file management system is adopted, and the vehicle language screen file management method is adopted to manage files.
The invention designs the car language screen to support downloading and decompressing the zip format file as the program played on the screen, which is an innovative idea and can provide more flexible and diversified contents for entertainment and information display of the car. This invention may provide the following benefits:
1. diversified contents: by supporting downloading and decompressing zip format files, a vehicle user is free to select and download various types of media content, such as pictures, music, video, and the like. They can load their favorite content into car language screen for playing according to personal preference and requirement.
2. Updating in real time: through network connection, the vehicle user can download the latest content from the Internet at any time and decompress the latest content to the vehicle voice screen for playing. This means that the user can obtain the latest music, news, weather information, etc., and enjoy these contents in real time inside the vehicle.
3. User-defined: the car screen supporting downloading and decompressing the zip format files can provide a user with greater custom capability. The user can create own programs according to own preference and interests, package the programs into zip files and load the zip files into a car voice screen for playing. This personalized experience may increase user satisfaction and engagement.
4. Safety: in order to ensure the security of the vehicle system, appropriate security measures need to be taken to prevent attacks by malware or viruses by downloading and decompressing zip files. And MD5 code verification is adopted to provide a file verification and security mechanism in the downloading and decompression processes.
The difficulty to overcome is:
1. compatibility and performance: the car logo needs to have sufficient performance and memory space to process and play decompressed program content. Meanwhile, the difference between the size and decompression time of different compressed files needs to be considered to ensure good user experience.
2. And (3) broadcast control management: in order to enable a user to conveniently download and manage zip files and select and play programs, more reasonable playing control logic is required.
Drawings
FIG. 1 is a diagram of a vehicle screen file management system management architecture according to an embodiment;
FIG. 2 is a flowchart of a program package download of a two-way screen file management system according to an embodiment;
description of the embodiments
The technical scheme of the invention is further described in detail below with reference to the accompanying drawings:
it will be understood by those skilled in the art that, unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. It will be further understood that terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning that is consistent with their meaning in the context of the prior art and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein.
The first embodiment is a vehicle voice screen file management system.
The management system includes:
the program package, the file folder named by the number of the single program, contains the program file and a json format file named as program, is used for playing the program and is stored in a memory of the vehicle voice screen equipment end. The program file comprises gif, jpg/jpeg and mjpg, and is a bin format file of a combined program and a font library. The json file contains playing parameters of the program file, wherein the playing parameters comprise file playing cycle times and the like.
Album, the json format file named album plus album number, contains a group of program numbers, shows the program playing sequence in album, and according to the file playing program, stores in the memory of the vehicle language screen equipment end.
The total resource list file, a json format file named program_list, contains the program numbers, version numbers and program ids of all program packages which can be normally played at the equipment end. The file is used for management of program package downloads. Stored in a memory of the vehicle voice screen equipment.
The program id is used for acquiring a download address of a program packet and an md5 check code, and the md5 code is used for checking the authenticity of an actually acquired compressed packet.
The total resource list file can be acquired by the server and is used for comparing the resources of the program package with the program list of the server side so as to add, delete and modify the program package.
The user can make a custom program through the APP or a program built in the system by default, and the custom program is uploaded to the server after compression in a background Zip format.
The car logo equipment end manages the program package in the following way: (see FIG. 1)
Resource comparison of program packages: the server acquires the total resource of the program package of the vehicle voice screen equipment end, reads the program_list.json content of the equipment end, and compares the program_list with the program list of the server end, so that the program package is added, deleted and changed.
Deleting the program package: if the program number does not exist in the program list of the server side and the program number exists in the program_list.json of the car logo equipment side, deleting the program number in the car logo equipment side, and removing the corresponding program number, version number and program id in the program_list.json of the equipment side.
Downloading program packages: if the program number of the server program list does not exist in the equipment program_list.json, the program package is downloaded, and the program number, the corresponding version number and the program id are newly added in the equipment program_list.json.
Updating program package: if the version number of a program package at the server is different from the version number of the program in the program_list.json of the vehicle language screen equipment, deleting the original program package at the vehicle language screen equipment, downloading a new program package, and updating the version number corresponding to the program number in the program_list.json of the vehicle language screen equipment.
The car logo equipment end downloads the program package in the following mode:
1) Acquiring a download address: according to a url plus a fixed path of a program id, a download address of a compressed packet in a zip format of a corresponding program packet and an md5 code for checking the compressed packet of the program packet are obtained.
2) Downloading program packages: and downloading the compressed packet into a memory of the vehicle voice screen equipment according to the downloading address obtained in the last step.
3) Checking the authenticity of the program package: and verifying the authenticity of the compressed packet which is actually obtained according to the md5 code obtained in the last step.
4) Decompressing the compressed package of program packages to a temporary folder.
5) And deleting the folder and the content of the folder if the folder with the same program number exists.
6) Renaming the folder to the program number corresponding to the program package.
When the car logo file management system needs to update the content of an album, the album content of the equipment end is obtained from a server end, compared with the album in json format with the same program number of the equipment end, if the program number sequence or the members are different, the album content of the equipment end is updated; if the equipment end does not have the album of the program number, generating a new album to the equipment end; if the device side has an album which does not exist at the server side, deleting the json file of the album.
An embodiment II is a vehicle voice screen file management method.
The method comprises the following steps:
s1, uploading a program package, wherein a user makes a custom program or a program built in a default system through an APP, and uploading the custom program or the program to a server through compression of a background Zip format.
S2, program package management of a vehicle voice screen device end:
s201, resource comparison of program packages: the server acquires the total resource of the program package of the vehicle voice screen equipment end, reads the program_list.json content of the equipment end, and compares the program_list with the program list of the server end, so that the program package is added, deleted and changed.
S202 deletes the program package: if the program number does not exist in the program list of the server side and the program number exists in the program_list.json of the car logo equipment side, deleting the program number in the car logo equipment side, and removing the corresponding program number, version number and program id in the program_list.json of the equipment side.
S203 downloads the program package: if the program number of the server program list does not exist in the equipment program_list.json, the program package is downloaded, and the program number, the corresponding version number and the program id are newly added in the equipment program_list.json.
The step of downloading the program package S203 includes the following steps (see fig. 2):
1) Acquiring a download address: according to a url plus a fixed path of a program id, a download address of a compressed packet in a zip format of a corresponding program packet and an md5 code for checking the compressed packet of the program packet are obtained.
2) Downloading program packages: and downloading the compressed packet into a memory of the vehicle voice screen equipment according to the downloading address obtained in the last step.
3) Checking the authenticity of the program package: and verifying the authenticity of the compressed packet which is actually obtained according to the md5 code obtained in the last step.
4) Decompressing the compressed package of program packages to a temporary folder.
5) And deleting the folder and the content of the folder if the folder with the same program number exists.
6) Renaming the folder to the program number corresponding to the program package.
S204 updates the program package: if the version number of a program package at the server is different from the version number of the program in the program_list.json of the vehicle language screen equipment, deleting the original program package at the vehicle language screen equipment, downloading a new program package, and updating the version number corresponding to the program number in the program_list.json of the vehicle language screen equipment.
Further, the car logo file management method further comprises the following steps:
s3, updating the content of the album: acquiring album content of the equipment end from a server end, comparing the album content with the album in json format of the same program number of the equipment end, and if the sequence of the program numbers or the members are different, updating the album content of the equipment end; if the equipment end does not have the album of the program number, generating a new album to the equipment end; if the device side has an album which does not exist at the server side, deleting the json file of the album.
The third embodiment is a vehicle voice screen file management device.
The car logo file management device comprises a car logo device end, a server end and a user APP end, wherein the car logo file management system is adopted, and files are managed by adopting the car logo file management method.
It will be understood by those skilled in the art that the foregoing is only a partial embodiment of the present invention, and it should be pointed out that modifications and adaptations to those skilled in the art can be made without departing from the principles of the present invention, and such modifications and adaptations are intended to be comprehended within the scope of the present invention.

Claims (7)

1. A vehicle logo file management system comprising:
the program package, the single program package, the file folder named by the number of the single program, the file of the contained program and a file named as program in json format, used for broadcasting the program use, store in the memorizer of the car language screen equipment end;
album, file of json format named by album_plus album number, a pack of program numbers are contained, show the program broadcasting sequence in album, broadcast the program according to this file, store in the memorizer of the car language screen apparatus end;
the total resource list file, a json format file named program_list, contains the program numbers, version numbers and program ids of all program packages which can be normally played at the equipment end; the file is used for managing program package downloading; the voice display device is stored in a memory of the vehicle voice screen equipment end;
the program id is used for acquiring a download address of a program packet and an md5 check code, and the md5 code is used for checking the authenticity of an actually acquired compressed packet.
2. The vehicle logo file management system as claimed in claim 1, wherein,
the total resource list file can be acquired by the server side and is used for comparing the resources of the program packages and comparing the resources with the program list of the server side so as to add, delete and modify the program packages.
3. The vehicle logo file management system as claimed in claim 1, wherein,
the format of the program file comprises gif, jpg/jpeg and mjpg, the program file is a bin format file of a combined program, and the bin format file of a font library;
the json format file named program contains the playing parameters of the program file, wherein the playing parameters comprise the playing cycle times of the file.
4. The vehicle voice screen file management method is characterized by comprising the following steps of:
uploading program package:
the user makes a custom program or a program built in a default system through the APP, and the custom program or the program is uploaded to the server after compression of a background Zip format;
program package management at car logo equipment end:
the method comprises the steps that the resources of program packages are compared, a server obtains the total resources of the program packages at a vehicle voice screen device end, reads the program_list.json content at the device end, and compares the program_list with a program list at the server end, so that the program packages are added, deleted and changed;
deleting a program package, if the program list at the server end does not contain the program package and the program number is contained in the program_list.json at the car logo equipment end, deleting the program package in the car logo equipment end and removing the corresponding program number, version number and program id in the program_list.json at the equipment end;
downloading a program package, if the program number of the server-side program list does not exist in the equipment-side program_list.json, downloading the program package, and newly adding the program number, the corresponding version number and the program id in the equipment-side program_list.json;
if the version number of a program packet at the server is different from the version number of the program at the program_list.json at the vehicle voice screen equipment, deleting the original program packet at the vehicle voice screen equipment, downloading a new program packet, and updating the version number corresponding to the program number at the program_list.json at the vehicle voice screen equipment.
5. The method for managing a car logo file as claimed in claim 4, wherein the downloading of the program package comprises the steps of:
acquiring a download address: obtaining a download address of a compressed packet in a zip format of a corresponding program packet and an md5 code for checking the compressed packet of the program packet according to a fixed path of url plus program id;
downloading program packages: downloading the compressed packet into a memory of the vehicle voice screen equipment end according to the downloading address obtained in the last step;
checking the authenticity of the program package: verifying the authenticity of the compressed packet obtained in practice according to the md5 code obtained in the previous step;
decompressing the compressed package of program packages to a temporary folder;
deleting the folder and the content of the folder if the folder with the same program number exists;
renaming the folder to the program number corresponding to the program package.
6. The car logo file management method as claimed in claim 4, further comprising the steps of:
updating the content of the album: acquiring album content of the equipment end from a server end, comparing the album content with the album in json format of the same program number of the equipment end, and if the sequence of the program numbers or the members are different, updating the album content of the equipment end; if the equipment end does not have the album of the program number, generating a new album to the equipment end; if the device side has an album which does not exist at the server side, deleting the json file of the album.
7. A car logo file management device, which comprises a car logo device end, a server end and a user APP end, wherein the car logo file management system according to one of claims 1-3 is adopted, and the car logo file management method according to one of claims 4-6 is adopted for file management.
CN202311357700.1A 2023-10-19 2023-10-19 Car language screen file management system, file management method and equipment Pending CN117093543A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202311357700.1A CN117093543A (en) 2023-10-19 2023-10-19 Car language screen file management system, file management method and equipment

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202311357700.1A CN117093543A (en) 2023-10-19 2023-10-19 Car language screen file management system, file management method and equipment

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CN110209458A (en) * 2019-06-06 2019-09-06 广州小鹏汽车科技有限公司 A kind of window method for drafting and device
CN113345352A (en) * 2021-06-15 2021-09-03 江苏布点网络技术有限公司 Vehicle-mounted LED display screen and control system and control method thereof
CN114374851A (en) * 2022-01-13 2022-04-19 中国铁道科学研究院集团有限公司电子计算技术研究所 High-speed rail fusion media playing control method, system and equipment and high-speed rail playing equipment
CN114387940A (en) * 2022-02-25 2022-04-22 卡莱特云科技股份有限公司 Partition display updating method of LED display screen, playing box and display system
CN114401264A (en) * 2022-01-21 2022-04-26 厦门海菱科技股份有限公司 Vehicle-mounted multi-screen different display output method, device, equipment and medium
CN114630164A (en) * 2022-03-14 2022-06-14 卡莱特云科技股份有限公司 Program playing method, device and system based on space expansion playing box

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106131123A (en) * 2016-06-21 2016-11-16 福建星网视易信息系统有限公司 The remote resource synchronous method of three-tier architecture and system
CN110209458A (en) * 2019-06-06 2019-09-06 广州小鹏汽车科技有限公司 A kind of window method for drafting and device
CN113345352A (en) * 2021-06-15 2021-09-03 江苏布点网络技术有限公司 Vehicle-mounted LED display screen and control system and control method thereof
CN114374851A (en) * 2022-01-13 2022-04-19 中国铁道科学研究院集团有限公司电子计算技术研究所 High-speed rail fusion media playing control method, system and equipment and high-speed rail playing equipment
CN114401264A (en) * 2022-01-21 2022-04-26 厦门海菱科技股份有限公司 Vehicle-mounted multi-screen different display output method, device, equipment and medium
CN114387940A (en) * 2022-02-25 2022-04-22 卡莱特云科技股份有限公司 Partition display updating method of LED display screen, playing box and display system
CN114630164A (en) * 2022-03-14 2022-06-14 卡莱特云科技股份有限公司 Program playing method, device and system based on space expansion playing box

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