In-vehicle entertainment product music sharing system

Abstract

The invention discloses a vehicle-mounted music sharing system, and relates to the technical field of vehicle-mounted music sharing, and the system comprises a vehicle-mounted music player module which achieves music playing and song list generation on a vehicle-mounted machine; the two-dimensional code generation module is used for generating a two-dimensional code according to the song list information on the current vehicle-mounted terminal; the wireless communication module is used for wirelessly transmitting the generated two-dimensional code to mobile terminal equipment; the two-dimensional code scanning module is used for identifying the received two-dimensional code and extracting music information in the received two-dimensional code; the song library matching module is used for searching songs matched with the information in the two-dimensional code; and the downloading module is used for downloading the matched songs from the cloud resources. According to the invention, in a vehicle-mounted environment, music or a song list played in the vehicle-mounted terminal can be quickly and conveniently transmitted to the mobile terminal device in a two-dimensional code mode, and song downloading and storage are carried out by matching a local music library or a cloud music library. The time is saved; and the data circulation efficiency between the vehicle machine and the mobile terminal equipment is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of in-vehicle music sharing, and in particular to an in-vehicle music sharing system. Background Art

[0002] With the rapid development of smart phones and in-car systems, in-car music entertainment has become an indispensable part of modern cars. While users enjoy music through the in-car system, they also hope to be able to manage, share and download music more conveniently through smart devices. However, in the current in-car music system, there are still some challenges in how to effectively transmit the song list and playlist information in the in-car music player to the user's mobile device, and how to match and download songs through the mobile device;

[0003] At present, music playback and management of in-car music systems are usually limited to the car system. If users want to share the music or playlist information played in the car to the mobile terminal, the operation is cumbersome and lacks unified standards. The songs and playlists played in the car system cannot be quickly matched and downloaded on the mobile device, and there is no simple and effective solution for matching songs in local and cloud music libraries.

[0004] Limitations of wireless transmission technology: Although modern vehicle systems support wireless communication technologies such as Bluetooth, Wi-Fi, and NFC, data transmission between different devices still faces problems such as compatibility, transmission efficiency, and stability, which makes the information sharing process cumbersome and the experience less than smooth. Summary of the invention

[0005] In order to solve the above technical problems, a car music sharing system is provided, and this technical solution solves the above problems.

[0006] In order to achieve the above purpose, the technical solution adopted by the present invention is:

[0007] A car music sharing system, comprising:

[0008] In-vehicle music player module: The in-vehicle music player module is used to play music and generate playlists on the vehicle computer;

[0009] QR code generation module: The QR code generation module is electrically connected to the vehicle-mounted music player module, and the QR code generation module is used to generate a QR code from the song list information currently on the vehicle computer;

[0010] Wireless communication module: The wireless communication module is electrically connected to the QR code generation module, and the wireless communication module is used to wirelessly transmit the generated QR code to the mobile terminal device;

[0011] QR code scanning module: The QR code scanning module is electrically connected to the QR code generating module, and is used to identify the received QR code and extract the music information therein, and parse out the relevant music data;

[0012] Music library matching module: The music library matching module is electrically connected to the QR code scanning module, and the music library matching module is used to search for songs matching the information in the QR code in the local and cloud music libraries of the mobile terminal;

[0013] Download module: The download module is electrically connected to the music library matching module. After matching the corresponding songs, the mobile terminal device downloads the matched songs from the cloud resources through the module and saves them in the local music library.

[0014] Preferably, the in-vehicle music player module specifically includes:

[0015] Music playback unit: used to parse and decode audio formats, play music stored in the car and on online streaming platforms, provide playback control and sound effect adjustment functions, and display the currently playing song information on the car display screen;

[0016] Playlist management unit: used to generate a list of currently playing songs based on user operations and automated recommendations, generate playlists based on user preferences and play history, and allow users to create, delete, and edit playlists;

[0017] Media library management unit: manages the music files stored locally in the vehicle system, including file classification, retrieval and update operations, synchronizes with the cloud music service, and synchronizes the playlists generated and edited by the user in the vehicle system to the cloud;

[0018] Metadata management unit: obtains and manages song metadata, automatically tags songs, processes ID3 tags in audio files, and stores and displays song information;

[0019] Vehicle-to-mobile communication unit: Communicates with the mobile device through the wireless communication module to ensure the transmission and reception of the QR code.

[0020] Preferably, the two-dimensional code generation module specifically includes:

[0021] Playlist information collection unit: access the currently playing music and playlist information and related metadata through the vehicle system API interface, and use text formatting tools to process the music information into a string form for formatting;

[0022] QR code encoding unit: Use the QR code generation library to convert the formatted information into a QR code image, set the fault tolerance level and size parameters of the QR code, and ensure that the QR code can be scanned and decoded by mobile devices;

[0023] QR code optimization unit: Use image processing tools to adjust the size, contrast and color parameters of the QR code image;

[0024] QR code output and transmission unit: displays the QR code in the vehicle interface, allowing users to directly scan and transmit the QR code to other devices through the vehicle screen. The vehicle screen will display the QR code image;

[0025] User interaction unit: Use the touch screen and physical buttons of the car computer to select the currently playing songs and playlists, and confirm the generation of the QR code.

[0026] Preferably, the wireless communication module specifically includes:

[0027] The QR code image acquisition unit obtains the generated QR code image data from the QR code generation module, reads the image file as a byte stream, and prepares for transmission. When the QR code is directly generated in a binary stream format, the data is directly transmitted;

[0028] Wireless communication protocol selection and configuration unit: selects the wireless communication method in the vehicle system and configures the corresponding device settings including Wi-Fi network configuration, Bluetooth pairing, and NFC frequency and communication distance;

[0029] QR code data encoding and encapsulation unit: encapsulates the QR code image data into the corresponding format according to the requirements of the transmission protocol. The QR code data is large, so the data compression algorithm is used to compress the data;

[0030] Wireless data transmission unit: uses the selected wireless communication protocol to transmit the QR code data to the mobile device.

[0031] Preferably, the data compression algorithm formula is:

[0032]

[0033] Where P(x) is the entropy of the character set, p i is the probability of occurrence of character i, and n is the size of the character set.

[0034] Preferably, transmitting the QR code data to the mobile device specifically includes:

[0035] Wi-Fi: Send the QR code data to the specified port of the mobile device by setting up TCP / IP connection and UDP broadcast;

[0036] Bluetooth: Use Bluetooth serial port and Bluetooth low energy features for data transmission;

[0037] NFC: Use NFC communication protocol to transmit QR code data;

[0038] After receiving the QR code data, the mobile device decodes it. For image data, the device directly displays the QR code, and the user reads the QR code content through the mobile phone scanning function.

[0039] Preferably, the two-dimensional code scanning module specifically includes:

[0040] QR code image acquisition unit: captures the QR code image based on the camera and camera module, and converts the captured QR code image into a digital image format;

[0041] QR code image preprocessing unit: filter the image noise, convert the image into a black and white binary image, highlight the black and white contrast of the QR code, and enhance the contrast of the QR code edge;

[0042] QR code decoding unit: identifies the data in the QR code through the QR code decoding library, and extracts the information stored in the QR code after decoding;

[0043] Data parsing and extraction unit:

[0044] URL format: parse and extract the URL address, such as the server path where the music resource is located;

[0045] ID form: Use the ID to query the database and server for related music data;

[0046] Music playback unit: uses an audio decoder to decode the audio file and uses an audio player to play the audio.

[0047] Preferably, the music library matching module specifically includes:

[0048] Local music library search unit: query in the local stored database according to the information parsed from the QR code;

[0049] If it is the song ID and hash value, search directly in the local database based on the ID;

[0050] If it is the song name and singer name information, perform fuzzy matching search;

[0051] If a matching song is found, the relevant information of the song is returned;

[0052] Cloud music library search unit: according to the information in the QR code, a request is sent to the cloud to query the cloud music library. When the matching song exists in the cloud, the download and online playback options are provided;

[0053] Matching result processing unit: finds matching songs locally or in the cloud, and returns relevant information of the songs to the user, including the song's file path, play link, cover image, singer and album. If no matching songs are found, the user is prompted that no match can be found.

[0054] Preferably, the download module specifically includes:

[0055] Cloud download link acquisition unit: requests the download link of the song from the cloud through the matched song information, passes the unique identifier of the song, and the cloud returns the download link and authorization information of the song;

[0056] Download management unit: start the download task and display the download progress. According to the download link, obtain the song data stream from the cloud to the local through HTTP and FTP protocols, and track the download progress in real time;

[0057] Download completion notification unit: displays a prompt message indicating that the download is successful, informing the user that the song has been downloaded locally;

[0058] Error handling and retry mechanism unit: If network errors, file errors or other problems occur during the download process, error messages are displayed and download retry options are provided to allow users to try to download the song again.

[0059] Preferably, the steps of the vehicle music sharing system are:

[0060] Play the current music in the car and generate a list of the currently playing songs;

[0061] Convert the song list information into a QR code;

[0062] Transmitting the QR code to a mobile device via a wireless communication module;

[0063] Scan and identify the QR code on a mobile device to parse the music information;

[0064] Match the corresponding songs in the local and cloud music libraries of the mobile device;

[0065] Download the matching songs to the local storage of the mobile device.

[0066] Compared with the prior art, the present invention has the following beneficial effects:

[0067] The car-mounted music sharing system of the present invention can quickly and conveniently transfer the music or playlist played in the car-mounted computer to the mobile device through a QR code in a car environment, and download and save songs by matching the local music library or the cloud music library. Through this system, users do not need to repeatedly search for songs and playlists on their mobile phones, which saves time and improves the data flow efficiency between the car-mounted computer and the mobile device. The present invention has cross-platform and cross-application ecological flow characteristics, and has high practical value and innovation. BRIEF DESCRIPTION OF THE DRAWINGS

[0068] Figure 1 It is a system framework diagram of the present invention. DETAILED DESCRIPTION

[0069] The following description is used to disclose the present invention so that those skilled in the art can implement the present invention. The preferred embodiments described below are only examples, and those skilled in the art may think of other obvious variations.

[0070] Reference Figure 1 As shown, a car music sharing system includes:

[0071] Car music player module:

[0072] Music playback unit: used to parse and decode audio formats, play music stored in the car and on online streaming platforms, provide playback control and sound effect adjustment functions, and display the currently playing song information on the car display screen;

[0073] Playlist management unit: used to generate a list of currently playing songs based on user operations and automated recommendations, generate playlists based on user preferences and play history, and allow users to create, delete, and edit playlists;

[0074] Media library management unit: manages the music files stored locally in the vehicle system, including file classification, retrieval and update operations, synchronizes with the cloud music service, and synchronizes the playlists generated and edited by the user in the vehicle system to the cloud;

[0075] Metadata management unit: obtains and manages song metadata, automatically tags songs, processes ID3 tags in audio files, and stores and displays song information;

[0076] Vehicle-to-mobile communication unit: Communicates with the mobile device through the wireless communication module to ensure the transmission and reception of the QR code.

[0077] QR code generation module:

[0078] Playlist information collection unit: access the currently playing music and playlist information and related metadata through the vehicle system API interface, and use text formatting tools to process the music information into a string form for formatting;

[0079] QR code encoding unit: Use the QR code generation library to convert the formatted information into a QR code image, set the fault tolerance level and size parameters of the QR code, and ensure that the QR code can be scanned and decoded by mobile devices;

[0080] QR code optimization unit: Use image processing tools to adjust the size, contrast and color parameters of the QR code image;

[0081] QR code output and transmission unit: displays the QR code in the vehicle interface, allowing users to directly scan and transmit the QR code to other devices through the vehicle screen. The vehicle screen will display the QR code image;

[0082] User interaction unit: Use the touch screen and physical buttons of the car computer to select the currently playing songs and playlists, and confirm the generation of the QR code.

[0083] Wireless communication module:

[0084] The QR code image acquisition unit obtains the generated QR code image data from the QR code generation module, reads the image file as a byte stream, and prepares for transmission. When the QR code is directly generated in a binary stream format, the data is directly transmitted;

[0085] Wireless communication protocol selection and configuration unit: selects the wireless communication method in the vehicle system and configures the corresponding device settings including Wi-Fi network configuration, Bluetooth pairing, and NFC frequency and communication distance;

[0086] QR code data encoding and encapsulation unit: encapsulates the QR code image data into the corresponding format according to the requirements of the transmission protocol. The QR code data is large, so the data compression algorithm is used to compress the data;

[0087] The data compression algorithm formula is:

[0088]

[0089] Where P(x) is the entropy of the character set, p i is the probability of occurrence of character i, n is the size of the character set;

[0090] Wireless data transmission unit: uses the selected wireless communication protocol to transmit the QR code data to the mobile device;

[0091] The transmitting of the QR code data to the mobile device specifically includes:

[0092] Wi-Fi: Send the QR code data to the specified port of the mobile device by setting up TCP / IP connection and UDP broadcast;

[0093] Bluetooth: Use Bluetooth serial port and Bluetooth low energy features for data transmission;

[0094] NFC: Use NFC communication protocol to transmit QR code data;

[0095] After receiving the QR code data, the mobile device decodes it. For image data, the device directly displays the QR code, and the user reads the QR code content through the mobile phone scanning function.

[0096] QR code scanning module:

[0097] QR code image acquisition unit: captures the QR code image based on the camera and camera module, and converts the captured QR code image into a digital image format;

[0098] QR code image preprocessing unit: filter the image noise, convert the image into a black and white binary image, highlight the black and white contrast of the QR code, and enhance the contrast of the QR code edge;

[0099] QR code decoding unit: identifies the data in the QR code through the QR code decoding library, and extracts the information stored in the QR code after decoding;

[0100] Data parsing and extraction unit:

[0101] URL format: parse and extract the URL address, such as the server path where the music resource is located;

[0102] ID form: Use the ID to query the database and server for related music data;

[0103] Music playback unit: uses an audio decoder to decode the audio file and uses an audio player to play the audio.

[0104] Music library matching module:

[0105] Local music library search unit: query in the local stored database according to the information parsed from the QR code;

[0106] If it is the song ID and hash value, search directly in the local database based on the ID;

[0107] If it is the song name and singer name information, perform fuzzy matching search;

[0108] If a matching song is found, the relevant information of the song is returned;

[0109] Cloud music library search unit: according to the information in the QR code, a request is sent to the cloud to query the cloud music library. When the matching song exists in the cloud, the download and online playback options are provided;

[0110] Matching result processing unit: finds matching songs locally or in the cloud, and returns relevant information of the songs to the user, including the song's file path, play link, cover image, singer and album. If no matching songs are found, the user is prompted that no match can be found.

[0111] Download Module:

[0112] Cloud download link acquisition unit: requests the download link of the song from the cloud through the matched song information, passes the unique identifier of the song, and the cloud returns the download link and authorization information of the song;

[0113] Download management unit: start the download task and display the download progress. According to the download link, obtain the song data stream from the cloud to the local through HTTP and FTP protocols, and track the download progress in real time;

[0114] Download completion notification unit: displays a prompt message indicating that the download is successful, informing the user that the song has been downloaded locally;

[0115] Error handling and retry mechanism unit: If network errors, file errors or other problems occur during the download process, error messages are displayed and download retry options are provided to allow users to try to download the song again.

[0116] The use process of the present invention is:

[0117] Play the current music in the car and generate a list of the currently playing songs;

[0118] Convert the song list information into a QR code;

[0119] Transmitting the QR code to a mobile device via a wireless communication module;

[0120] Scan and identify the QR code on a mobile device to parse the music information;

[0121] Match the corresponding songs in the local and cloud music libraries of the mobile device;

[0122] Download the matching songs to the local storage of the mobile device.

[0123] In summary, the advantages of the present invention are:

[0124] The in-vehicle system generates a QR code with the currently playing song information and the playlist through the QR code generation module. Users only need to scan the QR code to easily transfer the music information in the in-vehicle system to the mobile device, avoiding the cumbersome operations in the traditional way.

[0125] Through the form of QR code, data sharing between the vehicle system and mobile devices becomes simple and intuitive, and users do not need to perform tedious device pairing and connection operations;

[0126] The mobile device can extract music information through the QR code scanning module and search for matching songs in the local storage and cloud music library through the music library matching module. This process does not require the user to search manually, which improves the matching efficiency.

[0127] If the mobile device can find the song locally, the user can play it directly. If not, the system will automatically obtain the song download link from the cloud and provide a download function to facilitate users to save the song to the local music library;

[0128] The wireless communication module supports multiple wireless communication methods such as Wi-Fi, Bluetooth, and NFC. Users can choose the appropriate transmission method according to actual conditions. For example, Wi-Fi is suitable for large data transmission, Bluetooth is suitable for short-range low-power data transmission, and NFC supports fast pairing and transmission. For different devices, the system will automatically optimize the transmission protocol to ensure efficient and stable transmission of QR code data and avoid delays or losses during transmission.

[0129] The playlist management unit in the vehicle system can generate a personalized song list based on the user's preferences and historical playback records. Users can not only play through the vehicle system, but also share it to mobile devices through QR codes, so as to conveniently manage and use their favorite music.

[0130] The metadata management unit can automatically tag each song, including song title, singer, album, cover and other information, to ensure the integrity and recognizability of the song, and users can easily view song details on the mobile terminal;

[0131] The in-vehicle system uses optimized QR code generation and transmission technology. The QR code can not only carry more information, but also support fast scanning and recognition in different environments. Users only need to see the QR code on the car interface to scan it through a mobile device to obtain song information. The QR code optimization unit adjusts the size, contrast, color and other parameters of the QR code to ensure that the QR code image can be clearly recognized in various lighting environments.

[0132] The download module provides a stable download management function. Users can view the download progress in real time and get a prompt after the download is complete. During the download process, if there is a network or file problem, the system will provide an error prompt and a retry mechanism to prevent users from downloading failures. Songs obtained through the cloud download link can be saved directly to the local music library of the mobile device, and users do not need to worry about repeated downloads or data loss.

[0133] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions only describe the principles of the present invention. The present invention may be subject to various changes and improvements without departing from the spirit and scope of the present invention. These changes and improvements fall within the scope of the present invention. The scope of protection claimed by the present invention is defined by the attached claims and their equivalents.

Claims

1. A car music sharing system, characterized in that: include: In-vehicle music player module: The in-vehicle music player module is used to play music and generate playlists on the vehicle computer; QR code generation module: The QR code generation module is electrically connected to the vehicle-mounted music player module, and the QR code generation module is used to generate a QR code from the song list information currently on the vehicle computer; Wireless communication module: The wireless communication module is electrically connected to the QR code generation module, and the wireless communication module is used to wirelessly transmit the generated QR code to the mobile terminal device; QR code scanning module: The QR code scanning module is electrically connected to the QR code generating module, and is used to identify the received QR code and extract the music information therein, and parse out the relevant music data; Music library matching module: The music library matching module is electrically connected to the QR code scanning module, and the music library matching module is used to search for songs matching the information in the QR code in the local and cloud music libraries of the mobile terminal; Download module: The download module is electrically connected to the music library matching module. After matching the corresponding songs, the mobile terminal device downloads the matched songs from the cloud resources through the module and saves them in the local music library.

2. The car music sharing system according to claim 1, characterized in that: The in-vehicle music player module specifically includes: Music playback unit: used to parse and decode audio formats, play music stored in the car and on online streaming platforms, provide playback control and sound effect adjustment functions, and display the currently playing song information on the car display screen; Playlist management unit: used to generate a list of currently playing songs based on user operations and automated recommendations, generate playlists based on user preferences and play history, and allow users to create, delete, and edit playlists; Media library management unit: manages the music files stored locally in the vehicle system, including file classification, retrieval and update operations, synchronizes with the cloud music service, and synchronizes the playlists generated and edited by the user in the vehicle system to the cloud; Metadata management unit: obtains and manages song metadata, automatically tags songs, processes ID3 tags in audio files, and stores and displays song information; Vehicle-to-mobile communication unit: Communicates with the mobile device through the wireless communication module to ensure the transmission and reception of the QR code.

3. The car music sharing system according to claim 2, characterized in that: The two-dimensional code generation module specifically includes: Playlist information collection unit: access the currently playing music and playlist information and related metadata through the vehicle system API interface, and use text formatting tools to process the music information into a string form for formatting; QR code encoding unit: Use the QR code generation library to convert the formatted information into a QR code image, set the fault tolerance level and size parameters of the QR code, and ensure that the QR code can be scanned and decoded by mobile devices; QR code optimization unit: Use image processing tools to adjust the size, contrast and color parameters of the QR code image; QR code output and transmission unit: displays the QR code in the vehicle interface, allowing users to directly scan and transmit the QR code to other devices through the vehicle screen. The vehicle screen will display the QR code image; User interaction unit: Use the touch screen and physical buttons of the car computer to select the currently playing songs and playlists, and confirm the generation of the QR code.

4. The car music sharing system according to claim 3, characterized in that: The wireless communication module specifically includes: The QR code image acquisition unit obtains the generated QR code image data from the QR code generation module, reads the image file as a byte stream, and prepares for transmission. When the QR code is directly generated in a binary stream format, the data is directly transmitted; Wireless communication protocol selection and configuration unit: selects the wireless communication method in the vehicle system and configures the corresponding device settings including Wi-Fi network configuration, Bluetooth pairing, and NFC frequency and communication distance; QR code data encoding and encapsulation unit: encapsulates the QR code image data into the corresponding format according to the requirements of the transmission protocol. The QR code data is large, so the data compression algorithm is used to compress the data; Wireless data transmission unit: uses the selected wireless communication protocol to transmit the QR code data to the mobile device.

5. The car music sharing system according to claim 4, characterized in that: The data compression algorithm formula is: Where P ( x ) is the entropy of the character set, p i is the probability of occurrence of character i, and n is the size of the character set.

6. The car music sharing system according to claim 5, characterized in that: The transmitting of the QR code data to the mobile device specifically includes: Wi-Fi: Send the QR code data to the specified port of the mobile device by setting up TCP / IP connection and UDP broadcast; Bluetooth: Use Bluetooth serial port and Bluetooth low energy features for data transmission; NFC: Use NFC communication protocol to transmit QR code data; After receiving the QR code data, the mobile device decodes it. For image data, the device directly displays the QR code, and the user reads the QR code content through the mobile phone scanning function.

7. The car music sharing system according to claim 6, characterized in that: The two-dimensional code scanning module specifically includes: QR code image acquisition unit: captures the QR code image based on the camera and camera module, and converts the captured QR code image into a digital image format; QR code image preprocessing unit: filter the image noise, convert the image into a black and white binary image, highlight the black and white contrast of the QR code, and enhance the contrast of the QR code edge; QR code decoding unit: identifies the data in the QR code through the QR code decoding library, and extracts the information stored in the QR code after decoding; Data parsing and extraction unit: URL format: parse and extract the URL address, such as the server path where the music resource is located; ID form: Use the ID to query the database and server for related music data; Music playback unit: uses an audio decoder to decode the audio file and uses an audio player to play the audio.

8. The car music sharing system according to claim 7, characterized in that: The music library matching module specifically includes: Local music library search unit: query in the local stored database according to the information parsed from the QR code; If it is the song ID and hash value, search directly in the local database based on the ID; If it is the song name and singer name information, perform fuzzy matching search; If a matching song is found, the relevant information of the song is returned; Cloud music library search unit: according to the information in the QR code, a request is sent to the cloud to query the cloud music library. When the matching song exists in the cloud, the download and online playback options are provided; Matching result processing unit: finds matching songs locally or in the cloud, and returns relevant information of the songs to the user, including the song's file path, play link, cover image, singer and album. If no matching songs are found, the user is prompted that no match can be found.

9. The car music sharing system according to claim 8, characterized in that: The download module specifically includes: Cloud download link acquisition unit: requests the download link of the song from the cloud through the matched song information, passes the unique identifier of the song, and the cloud returns the download link and authorization information of the song; Download management unit: start the download task and display the download progress. According to the download link, obtain the song data stream from the cloud to the local through HTTP and FTP protocols, and track the download progress in real time; Download completion notification unit: displays a prompt message indicating that the download is successful, informing the user that the song has been downloaded locally; Error handling and retry mechanism unit: If network errors, file errors or other problems occur during the download process, error messages are displayed and download retry options are provided to allow users to try to download the song again.

10. The car music sharing system according to claim 9, characterized in that: The steps of the car music sharing system are as follows: Play the current music in the car and generate a list of the currently playing songs; Convert the song list information into a QR code; Transmitting the QR code to a mobile device via a wireless communication module; Scan and identify the QR code on a mobile device to parse the music information; Match the corresponding songs in the local and cloud music libraries of the mobile device; Download the matching songs to the local storage of the mobile device.

Images