File sharing method and device for in-vehicle multi-screen scene

Abstract

The invention relates to an in-vehicle multi-screen scene file sharing method and device, and belongs to the technical field of terminals. The method comprises the following steps: in response to an authority authentication operation of a sharing user, determining authority authentication between the sharing user and a vehicle terminal; in response to a file selection operation of a sharing user, selecting a file to be stored in the to-be-shared space; selecting a to-be-shared file in the to-be-shared space and sending the to-be-shared file to the vehicle-mounted terminal, so that the vehicle-mounted terminal stores the to-be-shared file into the shared file space and sends the to-be-shared file to a viewing user terminal which determines authority authentication with the vehicle-mounted terminal; displaying the to-be-shared file and generating a file sharing instruction; enabling the vehicle-mounted terminal to synchronously display a to-be-shared file according to the file sharing instruction; and synchronously displaying the to-be-shared file according to the file sharing instruction by the viewing user side of which the authority authentication is determined. The file sharing method and device have the advantage that the file sharing privacy is improved.

Description

Technical Field

[0001] The present application relates to the field of terminal technology, and more particularly to a method and device for sharing files in a multi-screen scenario in a vehicle. Background Art

[0002] With the development of automobile technology, the diversity and practicality of in-car functions are gradually valued by users. In addition to basic driving needs, some users will need file sharing functions while the vehicle is driving, such as temporary meetings for passengers.

[0003] Currently, in the prior art, when a user shares files in a car, a communication connection is first established between the user's terminal and the car terminal, and then the file to be shared is displayed on the car screen using a screen projection method.

[0004] However, the inventors have found that the prior art has at least the following technical problems: while the method of screen projection to share files is performing screen projection to share files, other private files in the sharing user's terminal will also be projected onto the car screen when the sharing user operates the terminal, resulting in a problem of low privacy of shared data. Summary of the invention

[0005] The present application provides a file sharing method and device in a multi-screen scenario in a car to solve the problem of low privacy in the file sharing process in the multi-screen scenario in the car, and has the advantage of improving the privacy of file sharing.

[0006] In a first aspect, the present application provides a file sharing method in a multi-screen scenario in a car, which is applied to a sharing user end, comprising:

[0007] In response to the permission authentication operation of the sharing user, determining the permission authentication between the vehicle terminal and the vehicle terminal;

[0008] In response to the file selection operation of the sharing user, selecting a file to be stored in the to-be-shared space;

[0009] Selecting a file to be shared in the to-be-shared space and sending it to the vehicle terminal, so that the vehicle terminal stores the file to be shared in the shared file space, and sends the file to be shared to the viewing user terminal that has determined authority authentication with the vehicle terminal, wherein the authority authentication is determined based on the viewing user terminal responding to the viewing user's authority application operation;

[0010] In response to the file sharing operation of the sharing user, display the file to be shared and generate a file sharing instruction;

[0011] Sending the file sharing instruction to the vehicle terminal, so that the vehicle terminal synchronously displays the file to be shared according to the file sharing instruction;

[0012] The file sharing instruction is sent to the viewing user terminal with determined authority authentication, so that the viewing user terminal with determined authority authentication synchronously displays the file to be shared according to the file sharing instruction.

[0013] In a possible implementation, the sharing user end, the vehicle end and the viewing user end are all deployed with a near field communication NFC module; accordingly, in response to the permission authentication operation of the sharing user, the permission authentication between the vehicle end and the vehicle end is determined, including: in response to the permission authentication operation of the sharing user, the permission authentication between the vehicle end and the vehicle end is determined through the NFC module; the file to be shared is selected in the space to be shared and sent to the vehicle end, so that the vehicle end stores the file to be shared in the shared file space, and the file to be shared is sent to the viewing user end for which the permission authentication is determined with the vehicle end, including: the file to be shared is selected in the space to be shared and sent to the vehicle end, so that the vehicle end stores the file to be shared in the shared file space, and the file to be shared is sent to the viewing user end for which the permission authentication is determined with the vehicle end, wherein the permission authentication is determined based on the viewing user end in response to the permission application operation of the viewing user through the NFC module.

[0014] In a possible implementation, after sending the file sharing instruction to the viewing user terminal with determined authority authentication so that the viewing user terminal with determined authority authentication synchronously displays the file to be shared according to the file sharing instruction, it also includes: generating a deletion instruction in response to a deletion operation of the sharing user; sending the deletion instruction to the vehicle terminal so that the vehicle terminal deletes the file to be shared according to the deletion instruction; sending the deletion instruction to the viewing user terminal with determined authority authentication so that the viewing user terminal with determined authority authentication deletes the file to be shared according to the deletion instruction.

[0015] In the second aspect, the present application provides a file sharing method in a multi-screen scenario in a car, which is applied to a car terminal, including:

[0016] Determine the authority authentication between the sharing user end and the sharing user end, wherein the authority authentication is determined by the sharing user end in response to the authority authentication operation of the sharing user;

[0017] Receiving a file to be shared in the to-be-shared space sent by a sharing user terminal, and storing the file to be shared in the shared file space, wherein the file to be shared is a file selected and stored in the to-be-shared space by the sharing user terminal in response to a file selection operation of the sharing user;

[0018] Sending the to-be-shared file in the shared file space to a viewing user terminal for determining authority authentication, wherein the authority authentication is determined based on the viewing user terminal in response to an authority application operation of the viewing user;

[0019] A file sharing instruction sent by the sharing user terminal is received, and the file to be shared is synchronously displayed according to the file sharing instruction, wherein the file sharing instruction is generated by the sharing user terminal when displaying the file to be shared in response to the file sharing operation of the sharing user.

[0020] In a possible implementation, the sharing user terminal, the vehicle terminal and the viewing user terminal are all deployed with near field communication NFC modules; accordingly, the determining of the permission authentication between the sharing user terminal, wherein the permission authentication is determined by the sharing user terminal in response to the permission authentication operation of the sharing user, includes: determining the permission authentication between the sharing user terminal, wherein the permission authentication is determined by the sharing user terminal in response to the permission authentication operation of the sharing user through the NFC module; the sending of the file to be shared to the viewing user terminal that determines the permission authentication, wherein the permission authentication is determined based on the viewing user terminal in response to the permission application operation of the viewing user, includes: sending the file to be shared to the viewing user terminal that determines the permission authentication, wherein the permission authentication is determined based on the viewing user terminal in response to the permission application operation of the viewing user through the NFC module.

[0021] In a possible implementation, after synchronously displaying the file to be shared according to the file sharing instruction, it also includes: receiving a deletion instruction sent by the sharing user end, and deleting the file to be shared according to the deletion instruction, wherein the deletion instruction is generated by the sharing user end in response to the deletion operation of the sharing user.

[0022] In a third aspect, the present application provides a file sharing method for a multi-screen scene in a car, which is applied to a viewing user terminal, and the method includes:

[0023] In response to the viewing user's permission application operation, determining the permission authentication between the vehicle terminal and the vehicle terminal;

[0024] Receiving a file to be shared sent by the vehicle terminal, wherein the file to be shared is a file selected and stored in the to-be-shared space by the sharing user terminal in response to a file selection operation of the sharing user, and then selected and sent to the vehicle terminal in the to-be-shared space;

[0025] Receive a file sharing instruction sent by the sharing vehicle terminal, and synchronously display the file to be shared according to the file sharing instruction, wherein the file sharing instruction is generated by the sharing user terminal when displaying the file to be shared in response to the file sharing operation of the sharing user.

[0026] In a possible implementation, the sharing user end, the vehicle end and the viewing user end are all deployed with near field communication NFC modules; accordingly, in response to the viewing user's permission application operation, determining the permission authentication between the vehicle end, includes: in response to the viewing user's permission application operation, determining the permission authentication between the vehicle end through the NFC module.

[0027] In a possible implementation, after synchronously displaying the file to be shared according to the file sharing instruction, it also includes: receiving a deletion instruction sent by the sharing user end, and deleting the file to be shared according to the deletion instruction, wherein the deletion instruction is generated by the sharing user end in response to the deletion operation of the sharing user.

[0028] In a fourth aspect, the present application provides a file sharing device for a multi-screen scenario in a car, which is applied to a sharing user end, including:

[0029] A first authority management module, configured to determine the authority authentication between the vehicle terminal and the vehicle terminal in response to the authority authentication operation of the sharing user;

[0030] A first file storage and transmission module, configured to select a file and store it in a to-be-shared space in response to a file selection operation of the sharing user;

[0031] The file storage and transmission module is further used to select a file to be shared in the to-be-shared space and send it to the vehicle terminal, so that the vehicle terminal stores the file to be shared in the shared file space, and sends the file to be shared to the viewing user terminal that has determined authority authentication with the vehicle terminal, wherein the authority authentication is determined based on the viewing user terminal in response to the viewing user's authority application operation;

[0032] A first multi-screen synchronization module, configured to display the file to be shared and generate a file sharing instruction in response to the file sharing operation of the sharing user;

[0033] The first multi-screen synchronization module is used to send the file sharing instruction to the vehicle terminal, so that the vehicle terminal synchronously displays the file to be shared according to the file sharing instruction;

[0034] The first multi-screen synchronization module is further used to send the file sharing instruction to the viewing user terminal with determined authority authentication, so that the viewing user terminal with determined authority authentication synchronously displays the file to be shared according to the file sharing instruction.

[0035] The file sharing method and device for the in-car multi-screen scene provided by the present application establishes a communication connection with the car terminal by determining the authority authentication between the car terminal, and then selects the file to be stored in the space to be shared in response to the file selection operation of the sharing user. Only the files in the space to be shared can be downloaded or viewed, thereby improving privacy. Moreover, only when the file to be shared is sent to the viewing user terminal that has determined the authority authentication, other viewing user terminals that have not determined the authority authentication cannot display the content of the file to be shared. Therefore, when displaying the file to be shared, it is displayed synchronously on the car terminal and the viewing user terminal that has determined the authority authentication, thereby improving privacy. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, a brief introduction will be given below to the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0037] Figure 1 A schematic diagram of an application scenario of a file sharing method for a multi-screen scenario in a car provided by an embodiment of the present application;

[0038] Figure 2 Schematic diagram of the process of the file sharing method for the multi-screen scene in the car provided by the embodiment of the present application Figure 1 ;

[0039] Figure 3 A schematic diagram of a process for determining authority authentication between a sharing user terminal and a vehicle terminal provided in an embodiment of the present application;

[0040] Figure 4 Schematic diagram of the process of the file sharing method for the multi-screen scene in the car provided by the embodiment of the present application Figure 2 ;

[0041] Figure 5 Schematic diagram of the process of the file sharing method for the multi-screen scene in the car provided by the embodiment of the present application Figure 3 ;

[0042] Figure 6 A schematic diagram of the interactive process of the file sharing method for the in-car multi-screen scenario provided by an embodiment of the present application;

[0043] Figure 7 A schematic diagram of the structure of a file sharing device for a multi-screen scenario in a car provided by an embodiment of the present application Figure 1 ;

[0044] Figure 8 A schematic diagram of the structure of a file sharing device for a multi-screen scenario in a car provided by an embodiment of the present application Figure 2 ;

[0045] Fig. 9 A schematic diagram of the structure of a file sharing device for a multi-screen scenario in a car provided by an embodiment of the present application Figure 3 ;

[0046] Fig.10 A schematic diagram of the hardware structure of a file sharing device for an in-car multi-screen scenario provided in an embodiment of the present application. DETAILED DESCRIPTION

[0047] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0048] At present, in some special usage scenarios such as multi-screen application scenarios in the car, users need the car to provide some personalized functions. For example: when a sharing user in the car needs to report work to other viewing users in the car while the vehicle is driving, the file needs to be displayed on multiple screens at the same time for at least one viewing user to watch. In the prior art, users often use screen projection software to project the display content on the entire sharing user terminal to the car screen in real time. At this time, in order to avoid leaking personal privacy, users need to carefully check whether there are files involving personal privacy that need to be closed or deleted before projecting and sharing files. During the file sharing process, they also need to pay attention to whether someone is sending messages or information about personal privacy, resulting in low user data privacy and inconvenient file sharing.

[0049] In order to solve the above technical problems, the embodiments of the present application provide the following technical concepts for solving the problems: first, a communication connection is established between the vehicle terminal, the sharing user terminal and each viewing user terminal, and then the file to be shared is selected on the sharing user terminal and stored in the space to be shared, and then the file to be shared is uploaded to the shared space on the vehicle terminal, and synchronized to the viewing user terminal with determined authority authentication, and then the screen content synchronization is achieved between the sharing user terminal, the viewing user terminal and the vehicle terminal, and the actions performed by the sharing user operation can be viewed by the viewing user terminal and the vehicle terminal, but can only see the file content of the shared file, thereby realizing the specific file sharing process only for the directional screen and improving privacy.

[0050] Figure 1 A schematic diagram of an application scenario of the file sharing method for a multi-screen scenario in a car provided by an embodiment of the present application, such as Figure 1As shown, it includes: a sharing user terminal 101, a car terminal 102 and at least one viewing user terminal 103.

[0051] Among them, the sharing user terminal 101 is a terminal device used by a sharing user who has a need to share files. The terminal device can be a mobile phone, a laptop or a tablet computer. The sharing user terminal 101 is deployed with an event controller, which is used to send or receive file sharing instructions generated based on the sharing user's sharing operation, so as to display the files to be shared on the sharing user terminal 101. The storage space of the vehicle terminal 102 includes a shared file space, which is used to store the files to be shared uploaded from the sharing user terminal 101 for each viewing user terminal 103 to view online or download and store for viewing. The viewing user terminal 103 is a terminal device used by the viewing user. When the sharing user terminal 101 performs real-time sharing, the vehicle terminal 102 and other viewing user terminals 103 can choose to join the real-time sharing process. After joining the real-time sharing process, the sharing user's operation on the sharing user end will generate a file sharing instruction, and send the file sharing instruction to the vehicle end 102 and other viewing user ends that have joined the real-time sharing process. The file sharing instruction will take effect on the sharing user end 102, the vehicle end 102 and the viewing user end 103 at the same time, and the file content of the file to be shared will be displayed in real time and synchronously on the sharing user end 101, the vehicle end 102 and the viewing user end 103 to complete the sharing of the file to be shared.

[0052] Figure 2 Schematic diagram of the process of the file sharing method for the multi-screen scene in the car provided by the embodiment of the present application Figure 1 , the execution subject of this embodiment can be Figure 1 The sharing client 101 in the embodiment shown may also be other computer-related devices, and this embodiment is not particularly limited. Figure 3 As shown, the method includes:

[0053] S201: In response to the permission authentication operation of the sharing user, determine the permission authentication between the vehicle and the vehicle.

[0054] In this embodiment, the authority authentication operation may be a process of authorization through wireless communication.

[0055] Specifically, in an optional embodiment of the present application, the sharing user terminal, the vehicle terminal, and the viewing user terminal for determining authority authentication are all deployed with near field communication NFC modules.

[0056] Figure 3 A schematic diagram of a process for determining authority authentication between a sharing user terminal and a vehicle terminal provided in an embodiment of the present application is used to illustrate Figure 1How the sharing client 101 and the vehicle terminal 102 in the application scenario of the file sharing method for the multi-screen scenario in the car establish a wireless communication connection and determine the authority authentication through the NFC module. It should be noted that the NFC module is deployed in the sharing client 101 and the vehicle terminal 102 in the hardware installation mode of the NFC processor. And the sharing client 101 and the vehicle terminal 102 are both installed with applications for sharing files. For example: the installation platform of the application can be an operating system such as Apple system, Android system or Hongmeng system, and the application can be a small program. Figure 3 As shown, the method comprises the following steps:

[0057] S301: The sharing user opens a pre-installed application on the sharing user terminal and clicks to start connecting.

[0058] S302: The sharing user brings the sharing user terminal close to the vehicle terminal, so that the sharing user terminal and the vehicle terminal start a pre-installed application on the vehicle terminal through the NFC processor.

[0059] S303: The vehicle computer feeds back the in-vehicle LAN communication connection information and the authority authentication password to the sharing user terminal through the NFC processor.

[0060] S304: The sharing user terminal establishes a communication connection with the vehicle terminal according to the pre-stored local area network communication connection information and the authority authentication password.

[0061] In this embodiment, the NFC processor of the sharing user terminal and the vehicle terminal is used for auxiliary communication, avoiding the authentication process due to the WiFi search process and the authentication process of entering the username and password. Only users with confirmed authority authentication can share files. Among them, the authority authentication can be user authority, and the user authority can include sharing user authority, viewing user authority and management user authority. In addition, the user authority can be recorded through the pre-stored user authority database table of the vehicle terminal. Exemplarily, the pre-stored user authority database table is shown in the following table:

[0062]

[0063] There is only one management user permission, namely the vehicle terminal, and there is only one sharing user permission. If there is no sharing user terminal, the sharing user needs to apply for sharing user permission through his or her own sharing user terminal. There can be one or more viewing user permissions, namely all viewing user terminals that have established a communication connection with the vehicle terminal.

[0064] For example: Sharing user permissions may include: 1. Permission to upload files to be shared to the vehicle terminal. 2. Permission to set permissions for shared files to be uploaded. 3. View, delete or download all files to be shared according to the categories of the files to be shared. 4. Permission to send sharing operation instructions for real-time sharing. 5. Permission to release sharing permissions. Observer user permissions may include: 1. Permission to watch the real-time sharing content of the sharer. 2. Permission to view, delete or download the files to be shared that meet the file permissions according to the file permissions. 3. Permission to apply for permission to grant sharing user permissions. 4. Permission to join real-time sharing and accept sharing operation instructions. Management user permissions may include: 1. Permission to set or modify all files to be shared. 2. Permission to view or delete the files to be shared according to the categories of the files to be shared. 3. Grant and revoke permissions to sharing users.

[0065] S202: In response to a file selection operation of a sharing user, select a file and store it in a space to be shared.

[0066] In this implementation, selecting files to be stored in the space to be shared refers to the process in which the sharing user stores the files that may need to be shared in the space to be shared by clicking, checking, or dragging on the sharing user side, where the space to be shared can be a space in the storage space of the sharing user side for storing the files to be shared. For example, the space to be shared can be a folder or an encrypted independent system.

[0067] S203: Select the file to be shared in the space to be shared and send it to the vehicle terminal, so that the vehicle terminal stores the file to be shared in the shared file space, and sends the file to be shared to the viewing user terminal that has determined the authority authentication with the vehicle terminal, wherein the authority authentication is determined based on the viewing user terminal's response to the viewing user's authority application operation.

[0068] In this embodiment, selecting a file to be shared in the space to be shared may be an action completed in response to a selection operation of the sharing user. The file to be shared may be a file that the sharing user is about to display synchronously on the vehicle terminal and the viewing user terminal. The shared file space may be a space in the storage space of the vehicle terminal for storing files to be shared. For example, the shared file space may be a shared folder or an encrypted shared independent system, which may be accessed by the viewing user terminal and the sharing user terminal with determined authority authentication, so that the user can complete operations such as opening, closing, downloading or deleting files.

[0069] Specifically, in an optional embodiment of the present application, the sharing user terminal, the vehicle terminal, and the viewing user terminal for determining the authority authentication are all deployed with a near field communication NFC module. Accordingly, step S203 includes:

[0070] Select the files to be shared in the space to be shared and send them to the vehicle side, so that the vehicle side stores the files to be shared in the shared file space, and sends the files to be shared to the viewing user side that has determined the authority authentication with the vehicle side, wherein the authority authentication is determined based on the viewing user side's response to the viewing user's authority application operation through the NFC module.

[0071] In this embodiment, the process of viewing the user end determining the authority authentication between the user end and the vehicle end and Figure 3 The process of determining the authority authentication between the sharing user end and the vehicle end is similar, so it will not be repeated here in the embodiment of the present application.

[0072] S204: In response to the file sharing operation of the sharing user, display the file to be shared and generate a file sharing instruction.

[0073] In this embodiment, the file sharing operation may be a browsing operation performed by the sharing user on the sharing user terminal for sharing the file to be shared, for example, the file sharing operation may include: opening a file, clicking to turn pages, clicking to play, pausing, horizontal or vertical screen, zooming and other conventional browsing operations. In this embodiment, displaying the file to be shared may be displaying the file content of the file to be shared on the display screen of the sharing user terminal to display or refresh the file to be shared. The file sharing instruction may be a script or instruction for synchronously displaying the file to be shared on the vehicle terminal or the viewing user terminal.

[0074] S205: Send the file sharing instruction to the vehicle computer, so that the vehicle computer synchronously displays the file to be shared according to the file sharing instruction.

[0075] In this embodiment, synchronous display means that the sharing user end and the vehicle end display the same file content for a sharing operation of the sharing user.

[0076] S206: Sending the file sharing instruction to the viewing user terminal with confirmed authority authentication, so that the viewing user terminal with confirmed authority authentication synchronously displays the file to be shared according to the file sharing instruction.

[0077] In this embodiment, synchronous display means that the sharing user terminal and the viewing user terminal display the same file content for a sharing operation of the sharing user. That is, from step S203 to step 206, without considering the communication transmission delay, it can be considered that the sharing user terminal, the vehicle terminal and the viewing user terminal display the same file content for a sharing operation of the sharing user at the same time.

[0078] In summary, the file sharing method for the in-car multi-screen scenario provided by the embodiment of the present application establishes a communication connection with the car-machine end by determining the authority authentication between the car-machine end, and then selects the file to be stored in the space to be shared in response to the file selection operation of the sharing user. Only the files in the space to be shared can be downloaded or viewed, thereby improving privacy. Moreover, only when the file to be shared is sent to the viewing user end that has determined the authority authentication, other viewing user ends that have not determined the authority authentication cannot display the content of the file to be shared. Therefore, when displaying the file to be shared, it is displayed synchronously on the car-machine end and the viewing user end that has determined the authority authentication, thereby improving privacy.

[0079] Based on the above embodiment, in an optional embodiment of the present application, after step S206, the following further includes:

[0080] Step A1: In response to a deletion operation of a sharing user, a deletion instruction is generated.

[0081] Step A2: Send a deletion instruction to the vehicle computer, so that the vehicle computer deletes the file to be shared according to the deletion instruction.

[0082] Step A3: Sending a deletion instruction to the viewing user terminal with confirmed authority authentication, so that the viewing user terminal with confirmed authority authentication deletes the to-be-shared file according to the deletion instruction.

[0083] In this embodiment, when the sharing user has finished sharing the file to be shared, a deletion operation can be performed, such as: selecting the file to be shared and clicking the delete button. The deletion instruction can be a command character or script for performing the deletion operation on the vehicle terminal.

[0084] In summary, the file sharing method provided in the embodiment of the present application can prevent the files to be shared from being leaked when someone uses the car computer later by deleting the files to be shared saved on the car computer after the file sharing process is completed, and can also save storage space on the car computer, providing convenience for subsequent file sharing.

[0085] Figure 4 Schematic diagram of the process of the file sharing method for the multi-screen scene in the car provided by the embodiment of the present application Figure 2 , the execution subject of this embodiment can be Figure 2 The vehicle terminal 102 in the illustrated embodiment may also be other computer-related devices, and this embodiment is not particularly limited.

[0086] like Figure 4 As shown, the file sharing method of the multi-screen scene in the car includes:

[0087] S401: Determine authority authentication between the sharing user and the sharing client, wherein the authority authentication is determined by the sharing client in response to an authority authentication operation of the sharing user.

[0088] In this embodiment, the authority authentication between the determination and the sharing user end may be performed by using a contactless authority granting authentication method.

[0089] Specifically, in an optional embodiment of the present application, the sharing user terminal, the vehicle terminal, and the viewing user terminal for determining the authority authentication are all deployed with a near field communication NFC module. Accordingly, step S401 includes:

[0090] Determine the authority authentication between the sharing user end, wherein the authority authentication is determined by the sharing user end in response to the authority authentication operation of the sharing user through the NFC module.

[0091] In this embodiment, the permission authentication operation through the NFC module can be that when the sharing user brings the sharing user terminal close to the vehicle terminal, the vehicle terminal and the sharing user terminal quickly establish a communication connection relationship through NFC, and the vehicle terminal feeds back the permission authentication password to the sharing user terminal through the NFC module to confirm the permission authentication.

[0092] S402: receiving a file to be shared in a space to be shared sent by a sharing user, and storing the file to be shared in the shared file space, wherein the file to be shared is a file selected and stored in the space to be shared by the sharing user in response to a file selection operation of the sharing user.

[0093] In this embodiment, the files to be shared in the to-be-shared space sent by the sharing user terminal can be transferred via the wireless local area network in the car or the mobile Internet of the operator. The files in the shared file space and the to-be-shared space can be synchronized. When the to-be-shared file is deleted in the to-be-shared space, the shared space will also delete the corresponding to-be-shared file.

[0094] S403: Send the file to be shared in the shared file space to the viewing user terminal for determining authority authentication, wherein the authority authentication is determined based on the viewing user terminal's response to the viewing user's authority application operation.

[0095] In this embodiment, only the viewing user terminal with confirmed authority authentication can receive the files to be shared from the shared file space, and the viewing user terminal is also provided with a space to be shared, and the data in the space to be shared of the viewing user terminal and the shared space of the vehicle terminal can also be synchronized. When the files in the shared file space are deleted, the files in the space to be shared will also be deleted.

[0096] Specifically, in an optional embodiment of the present application, the sharing user terminal, the vehicle terminal and the viewing user terminal for determining the authority authentication are all deployed with a near field communication NFC module. Accordingly, in step S403, the file to be shared is sent to the viewing user terminal for determining the authority authentication, wherein the authority authentication is determined based on the viewing user terminal in response to the viewing user's authority application operation, and includes:

[0097] The file to be shared is sent to the viewing user terminal for determining authority authentication, wherein the authority authentication is determined based on the viewing user terminal responding to the viewing user's authority application operation through the NFC module.

[0098] In this implementation, the permission application operation of the viewing user may be specifically referred to the permission application operation of the sharing user, so this embodiment will not be repeated here.

[0099] S404: receiving a file sharing instruction sent by the sharing client, and synchronously displaying the file to be shared according to the file sharing instruction, wherein the file sharing instruction is generated by the sharing client when displaying the file to be shared in response to the file sharing operation of the sharing user.

[0100] In this embodiment, the file sharing instruction may be generated by the sharing user end in response to the sharing user performing file sharing related operations on the sharing user end. Figure 2 The step S205 in the illustrated embodiment has been described, and thus will not be described again in detail in this embodiment.

[0101] In summary, the file sharing method for the in-car multi-screen scenario provided in the embodiment of the present application sets up a shared file space on the car computer, synchronizes data with the space to be shared on the sharing user side, and only sends the files to be shared to the viewing user side with confirmed authority authentication, so as to realize synchronous file sharing in the in-car multi-screen scenario and improve privacy.

[0102] Based on the above embodiment, an optional embodiment of the present application provides a file sharing method for a multi-screen scenario in a car, after synchronously displaying the file to be shared according to the file sharing instruction in step S404, further comprising:

[0103] Step B1: receiving a deletion instruction sent by the sharing user end, and deleting the to-be-shared file according to the deletion instruction, wherein the deletion instruction is generated by the sharing user end in response to a deletion operation of the sharing user.

[0104] In this embodiment, the principle and technical effect of deleting the deletion instruction and deleting the file to be shared according to the deletion instruction are similar to those of step A2 in the above embodiment, so this embodiment will not be repeated here.

[0105] Figure 5 Schematic diagram of the process of the file sharing method for the multi-screen scene in the car provided by the embodiment of the present application Figure 3 , the execution subject of this embodiment can be Figure 2 The viewing user terminal 103 in the illustrated embodiment may also be other computer-related devices, and there is no particular limitation on this embodiment.

[0106] like Figure 5As shown, the file sharing method of the multi-screen scene in the car includes:

[0107] S501: In response to the viewing user's permission application operation, determine the permission authentication between the vehicle terminal and the vehicle terminal.

[0108] In this embodiment, the permission application operation of the viewing user may be a process in which the viewing user brings the viewing user terminal close to the vehicle terminal.

[0109] Specifically, in an optional embodiment of the present application, the sharing user end, the vehicle end and the viewing user end are all deployed with near field communication NFC modules; accordingly, step S501 includes: in response to the viewing user's permission application operation, determining the permission authentication between the vehicle end and the NFC module.

[0110] S502: receiving a file to be shared sent by the vehicle terminal, wherein the file to be shared is a file selected and stored in the space to be shared by the sharing user terminal in response to the file selection operation of the sharing user, and then selected and sent to the vehicle terminal in the space to be shared.

[0111] In this embodiment, the receiving end of the vehicle can transmit the file to be shared via the wireless local area network or mobile Internet in the vehicle. The file to be shared is any file selected by the sharing user in the space to be shared, and the file to be shared will be synchronized to the space to be shared of the viewing user.

[0112] S503: receiving a file sharing instruction sent by the sharing vehicle terminal, and synchronously displaying the file to be shared according to the file sharing instruction, wherein the file sharing instruction is generated by the sharing user terminal in response to the file sharing operation of the sharing user, when displaying the file to be shared.

[0113] In this embodiment, the file sharing instruction may be generated by the sharing client in response to the sharing user performing a file sharing-related operation on the sharing client. Figure 2 The step S206 in the illustrated embodiment has been described, and thus will not be described again in detail in this embodiment.

[0114] In summary, the file sharing method for the in-car multi-screen scenario provided by the embodiment of the present application can prevent other viewing users from viewing the shared content, thereby improving privacy, by sending the files to be shared to the viewing user terminal with determined authority authentication.

[0115] Based on the above embodiment, in an optional embodiment of the present application, after synchronously displaying the file to be shared according to the file sharing instruction in step S503, the method further includes:

[0116] Step C1: receiving a deletion instruction sent by the sharing user end, and deleting the to-be-shared file according to the deletion instruction, wherein the deletion instruction is generated by the sharing user end in response to a deletion operation of the sharing user.

[0117] In this embodiment, the principle and technical effect of deleting the deletion instruction and deleting the file to be shared according to the deletion instruction are similar to those of step A3 in the above embodiment, so this embodiment will not be repeated here.

[0118] Figure 6 The following is a schematic diagram of the interaction process of the file sharing method for the in-car multi-screen scenario provided by the embodiment of the present application. To simplify the interaction process, the number of sharing user terminals, vehicle terminals, and viewing user terminals are all 1, such as Figure 6 The method comprises:

[0119] S601: The sharing user terminal determines the authority authentication between itself and the vehicle terminal in response to the authority authentication operation of the sharing user.

[0120] S602: The sharing client selects a file to be stored in the to-be-shared space in response to the file selection operation of the sharing user.

[0121] S603: The sharing user terminal selects a file to be shared in the sharing space and sends it to the vehicle terminal.

[0122] S604: The vehicle terminal stores the file to be shared into the shared file space.

[0123] S605: The viewing user terminal determines the authority authentication between the viewing user terminal and the vehicle terminal in response to the viewing user's authority application operation.

[0124] S606: The vehicle terminal sends the file to be shared in the shared file space to the viewing user terminal that has confirmed the authority authentication.

[0125] S606: The sharing client displays the file to be shared and generates a file sharing instruction in response to the file sharing operation of the sharing user.

[0126] S607: The sharing user terminal sends the file sharing instruction to the vehicle terminal.

[0127] S608: The sharing client sends the file sharing instruction to the viewing client that has determined the authority authentication.

[0128] S609: The vehicle computer synchronously displays the file to be shared according to the file sharing instruction.

[0129] S6010: Determine that the viewing user terminal with authority authentication synchronously displays the file to be shared according to the file sharing instruction.

[0130] In this embodiment, if the time taken for data transmission is not taken into account, steps S606 to S6010 are performed synchronously, that is, when the sharing user performs a file sharing operation on the file to be shared on the sharing user end, the event generated for the file to be shared is generated simultaneously on the vehicle end and the viewing user end to complete the real-time same-screen sharing of the file to be shared.

[0131] Figure 7 A schematic diagram of the structure of a file sharing device for a multi-screen scenario in a car provided by an embodiment of the present application Figure 1 The device includes: a first authority management module 71, a first file storage and transmission module 72 and a first multi-screen synchronization module 73.

[0132] The first authority management module 71 is used to determine the authority authentication between the vehicle terminal and the vehicle terminal in response to the authority authentication operation of the sharing user;

[0133] The first file storage and transmission module 72 is used to select a file and store it in the to-be-shared space in response to the file selection operation of the sharing user;

[0134] The first file storage and transmission module 72 is further used to select a file to be shared in the to-be-shared space and send it to the vehicle terminal, so that the vehicle terminal stores the file to be shared in the shared file space, and sends the file to be shared to the viewing user terminal that has determined the authority authentication with the vehicle terminal, wherein the authority authentication is determined based on the viewing user terminal responding to the viewing user's authority application operation;

[0135] A first multi-screen synchronization module 73, configured to display the file to be shared and generate a file sharing instruction in response to the file sharing operation of the sharing user;

[0136] A first multi-screen synchronization module 73, used to send a file sharing instruction to the vehicle terminal, so that the vehicle terminal synchronously displays the file to be shared according to the file sharing instruction;

[0137] The first multi-screen synchronization module 73 is further used to send the file sharing instruction to the viewing user terminal with confirmed authority authentication, so that the viewing user terminal with confirmed authority authentication synchronously displays the file to be shared according to the file sharing instruction.

[0138] In an optional embodiment of the present application, the sharing user terminal, the vehicle terminal and the viewing user terminal are all equipped with a near field communication NFC module. Accordingly, the first permission management module 71 is specifically used to: determine the permission authentication between the vehicle terminal and the sharing user terminal through the NFC module in response to the permission authentication operation of the sharing user. Select the file to be shared in the to-be-shared space and send it to the vehicle terminal, so that the vehicle terminal stores the file to be shared in the shared file space, and sends the file to be shared to the viewing user terminal that determines the permission authentication with the vehicle terminal, wherein the permission authentication is determined based on the viewing user terminal in response to the permission application operation of the viewing user through the NFC module.

[0139] In an optional embodiment of the present application, the first file storage and transmission module 72 is also used to: generate a deletion instruction in response to a deletion operation of the sharing user; send the deletion instruction to the vehicle terminal so that the vehicle terminal deletes the file to be shared according to the deletion instruction; send the deletion instruction to the viewing user terminal that has determined the authority authentication so that the viewing user terminal that has determined the authority authentication deletes the file to be shared according to the deletion instruction.

[0140] The file sharing device for the multi-screen scene in the car provided in this embodiment can be used to perform the above Figure 2 The technical solution of the method embodiment shown has similar implementation principles and technical effects, and will not be described in detail in this embodiment.

[0141] Figure 8 A schematic diagram of the structure of a file sharing device for a multi-screen scenario in a car provided by an embodiment of the present application Figure 1 The device includes: a second authority management module 81, a second file storage and transmission module 82 and a second multi-screen synchronization module 83.

[0142] A second authority management module 81, used to determine the authority authentication between the sharing user end, wherein the authority authentication is determined by the sharing user end in response to the authority authentication operation of the sharing user;

[0143] The second file storage and transmission module 82 is used to receive the to-be-shared file in the to-be-shared space sent by the sharing user terminal, and store the to-be-shared file in the shared file space, wherein the to-be-shared file is the file selected and stored in the to-be-shared space by the sharing user terminal in response to the file selection operation of the sharing user;

[0144] The second file storage and transmission module 82 is further used to send the to-be-shared file in the shared file space to the viewing user terminal for determining the authority authentication, wherein the authority authentication is determined based on the viewing user terminal in response to the viewing user's authority application operation;

[0145] The second multi-screen synchronization module 83 is used to receive a file sharing instruction sent by the sharing user end, and synchronously display the file to be shared according to the file sharing instruction, wherein the file sharing instruction is generated by the sharing user end when displaying the file to be shared in response to the file sharing operation of the sharing user.

[0146] In an optional embodiment of the present application, the sharing user end, the vehicle end and the viewing user end are all deployed with near field communication NFC modules. Accordingly, the second permission management module 81 is specifically used to: respond to the permission application operation of the viewing user, and determine the permission authentication between the vehicle end and the NFC module.

[0147] In an optional embodiment of the present application, the second file storage and transmission module 82 is also used to: receive a deletion instruction sent by the sharing user end, and delete the file to be shared according to the deletion instruction, wherein the deletion instruction is generated by the sharing user end in response to the deletion operation of the sharing user.

[0148] The file sharing device for the multi-screen scene in the car provided in this embodiment can be used to perform the above Figure 4 The technical solution of the method embodiment shown has similar implementation principles and technical effects, and will not be described in detail in this embodiment.

[0149] Fig. 9 A schematic diagram of the structure of a file sharing device for a multi-screen scenario in a car provided by an embodiment of the present application Figure 3 The device includes: a third authority management module 91, a third file storage and transmission module 92 and a third multi-screen synchronization module 93.

[0150] The third authority management module 91 is used to determine the authority authentication between the vehicle terminal and the vehicle terminal in response to the authority application operation of the viewing user;

[0151] The third file storage and transmission module 92 is used to receive the to-be-shared file sent by the vehicle terminal, wherein the to-be-shared file is the file selected and stored in the to-be-shared space by the sharing user terminal in response to the file selection operation of the sharing user, and then selected and sent to the vehicle terminal in the to-be-shared space;

[0152] The third multi-screen synchronization module 93 is used to receive the file sharing instruction sent by the sharing vehicle terminal, and synchronously display the file to be shared according to the file sharing instruction, wherein the file sharing instruction is generated by the sharing user terminal in response to the file sharing operation of the sharing user, and displays the file to be shared.

[0153] In an optional embodiment of the present application, the sharing user terminal, the vehicle terminal and the viewing user terminal are all equipped with a near field communication NFC module. Accordingly, the third authority management module 91 is specifically used to: in response to the viewing user's authority application operation, determine the authority authentication between the vehicle terminal and the NFC module.

[0154] In an optional embodiment of the present application, the third file storage and transmission module 92 is also used to: receive a deletion instruction sent by the sharing user end, and delete the file to be shared according to the deletion instruction, wherein the deletion instruction is generated by the sharing user end in response to the deletion operation of the sharing user.

[0155] The file sharing device for the multi-screen scene in the car provided in this embodiment can be used to perform the above Figure 5 The technical solution of the method embodiment shown has similar implementation principles and technical effects, and will not be described in detail in this embodiment.

[0156] Fig.10A schematic diagram of the hardware structure of a file sharing device for a multi-screen scenario in a car provided by an embodiment of the present application, such as Fig.10 As shown, the device includes: at least one processor 1001, a memory 1002 and a near field communication NFC processor 1003;

[0157] The NFC processor 1003 is used to implement wireless communication.

[0158] Processor 1001 is used to store computer-executable instructions.

[0159] The memory 1002 is used to execute the computer-executable instructions stored in the memory to implement the various steps involved in the above method embodiment. For details, please refer to the relevant description in the above method embodiment.

[0160] Optionally, the memory 1002 may be independent or integrated with the processor 1001 .

[0161] When the memory 1002 is independently provided, the device further includes a bus 1004 for connecting the memory 1002 and the processor 1001 .

[0162] An embodiment of the present application also provides a computer-readable storage medium, in which computer-executable instructions are stored. When a processor executes the computer-executable instructions, the above-mentioned file sharing method for the in-vehicle multi-screen scenario is implemented.

[0163] An embodiment of the present application also provides a computer program product, including a computer program, which, when executed by a processor, implements the above-mentioned file sharing method for the in-vehicle multi-screen scenario.

[0164] In the several embodiments provided in the present application, it should be understood that the disclosed devices and methods can be implemented in other ways. For example, the device embodiments described above are only schematic. For example, the division of the above modules is only a logical function division. There may be other division methods in actual implementation, such as multiple modules can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some interfaces, indirect coupling or communication connection of devices or modules, which can be electrical, mechanical or other forms.

[0165] The modules described above as separate components may or may not be physically separated, and the components shown as modules may or may not be physical units, that is, they may be located in one place or distributed on multiple network units. Some or all of the modules may be selected according to actual needs to implement the solution of this embodiment.

[0166] In addition, each functional module in each embodiment of the present invention may be integrated into one processing unit, each module may exist physically separately, or two or more modules may be integrated into one unit. The unit composed of the above modules may be implemented in the form of hardware or in the form of hardware plus software functional units.

[0167] The above-mentioned integrated module implemented in the form of a software function module can be stored in a computer-readable storage medium. The above-mentioned software function module is stored in a storage medium, including a number of instructions for causing a computer device (which can be a personal computer, a server, or a network device, etc.) or a processor to perform some steps of the method of each embodiment of the present application.

[0168] It should be understood that the processor may be a central processing unit (CPU), or other general-purpose processors, digital signal processors (DSP), application-specific integrated circuits (ASIC), etc. A general-purpose processor may be a microprocessor or any conventional processor. The steps of the method disclosed in the invention may be directly implemented as being executed by a hardware processor, or may be implemented by a combination of hardware and software modules in the processor.

[0169] The memory may include a high-speed RAM memory, and may also include a non-volatile storage NVM, such as at least one disk memory, and may also be a USB flash drive, a mobile hard disk, a read-only memory, a magnetic disk or an optical disk, etc.

[0170] The bus may be an Industry Standard Architecture (ISA) bus, a Peripheral Component Interconnect (PCI) bus, or an Extended Industry Standard Architecture (EISA) bus, etc. The bus may be divided into an address bus, a data bus, a control bus, etc. For ease of representation, the bus in the drawings of the present application is not limited to only one bus or one type of bus.

[0171] The above storage medium can be implemented by any type of volatile or non-volatile storage device or a combination thereof, such as static random access memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable programmable read-only memory (EPROM), programmable read-only memory (PROM), read-only memory (ROM), magnetic memory, flash memory, magnetic disk or optical disk. The storage medium can be any available medium that can be accessed by a general or special purpose computer.

[0172] An exemplary storage medium is coupled to a processor so that the processor can read information from the storage medium and write information to the storage medium. Of course, the storage medium can also be a component of the processor. The processor and the storage medium can be located in an application specific integrated circuit (ASIC). Of course, the processor and the storage medium can also exist as discrete components in an electronic device or a main control device.

[0173] Those skilled in the art can understand that all or part of the steps of implementing the above-mentioned method embodiments can be completed by hardware related to program instructions. The aforementioned program can be stored in a computer-readable storage medium. When the program is executed, the steps of the above-mentioned method embodiments are executed; and the aforementioned storage medium includes: ROM, RAM, disk or optical disk and other media that can store program codes.

[0174] The present invention is intended to illustrate the technical solution of the present application rather than to limit it. Although the present application has been described in detail with reference to the aforementioned embodiments, a person skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some or all of the technical features may be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solution from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A file sharing method for a multi-screen scenario in a car, characterized in that: Applied to sharing client, including: In response to the permission authentication operation of the sharing user, determining the permission authentication between the vehicle terminal and the vehicle terminal; In response to the file selection operation of the sharing user, selecting a file to be stored in the to-be-shared space; Selecting a file to be shared in the to-be-shared space and sending it to the vehicle terminal, so that the vehicle terminal stores the file to be shared in the shared file space, and sends the file to be shared to the viewing user terminal that has determined authority authentication with the vehicle terminal, wherein the authority authentication is determined based on the viewing user terminal responding to the viewing user's authority application operation; In response to the file sharing operation of the sharing user, display the file to be shared and generate a file sharing instruction; Sending the file sharing instruction to the vehicle terminal, so that the vehicle terminal synchronously displays the file to be shared according to the file sharing instruction; The file sharing instruction is sent to the viewing user terminal with determined authority authentication, so that the viewing user terminal with determined authority authentication synchronously displays the file to be shared according to the file sharing instruction.

2. The method according to claim 1, characterized in that The sharing user terminal, the vehicle terminal and the viewing user terminal are all equipped with a near field communication NFC module; Accordingly, in response to the permission authentication operation of the sharing user, determining the permission authentication between the vehicle terminal and the vehicle terminal includes: In response to the permission authentication operation of the sharing user, the permission authentication between the vehicle and the vehicle is determined through the NFC module; The step of selecting a file to be shared in the to-be-shared space and sending it to the vehicle terminal, so that the vehicle terminal stores the file to be shared in the shared file space, and sending the file to be shared to a viewing user terminal that has determined authority authentication with the vehicle terminal, includes: Select the files to be shared in the space to be shared and send them to the vehicle terminal, so that the vehicle terminal stores the files to be shared in the shared file space, and sends the files to be shared to the viewing user terminal that has determined the authority authentication with the vehicle terminal, wherein the authority authentication is determined based on the viewing user terminal in response to the viewing user's authority application operation through the NFC module.

3. The method according to claim 1 or 2, characterized in that: After sending the file sharing instruction to the viewing user terminal with determined authority authentication so that the viewing user terminal with determined authority authentication synchronously displays the file to be shared according to the file sharing instruction, the method further includes: In response to a deletion operation of the sharing user, generating a deletion instruction; Sending the deletion instruction to the vehicle terminal, so that the vehicle terminal deletes the file to be shared according to the deletion instruction; The deletion instruction is sent to the viewing user terminal with determined authority authentication, so that the viewing user terminal with determined authority authentication deletes the file to be shared according to the deletion instruction.

4. A file sharing method for a multi-screen scenario in a car, characterized in that: Applied to the vehicle side, including: Determine the authority authentication between the sharing user end and the sharing user end, wherein the authority authentication is determined by the sharing user end in response to the authority authentication operation of the sharing user; Receiving a file to be shared in the to-be-shared space sent by a sharing user terminal, and storing the file to be shared in the shared file space, wherein the file to be shared is a file selected and stored in the to-be-shared space by the sharing user terminal in response to a file selection operation of the sharing user; Sending the to-be-shared file in the shared file space to a viewing user terminal for determining authority authentication, wherein the authority authentication is determined based on the viewing user terminal in response to an authority application operation of the viewing user; A file sharing instruction sent by the sharing user terminal is received, and the file to be shared is synchronously displayed according to the file sharing instruction, wherein the file sharing instruction is generated by the sharing user terminal when displaying the file to be shared in response to the file sharing operation of the sharing user.

5. The method according to claim 4, characterized in that The sharing user terminal, the vehicle terminal and the viewing user terminal are all equipped with a near field communication NFC module; Accordingly, the determining of the authority authentication between the sharing user terminal and the sharing user terminal, wherein the authority authentication is determined by the sharing user terminal in response to the authority authentication operation of the sharing user, includes: Determine the authority authentication between the sharing user end and the sharing user end, wherein the authority authentication is determined by the sharing user end in response to the authority authentication operation of the sharing user through the NFC module; The step of sending the file to be shared to a viewing user terminal for determining authority authentication, wherein the authority authentication is determined based on the viewing user terminal responding to an authority application operation of the viewing user, comprises: The file to be shared is sent to a viewing user terminal for determining authority authentication, wherein the authority authentication is determined based on the viewing user terminal in response to the viewing user's authority application operation through the NFC module.

6. The method according to claim 4 or 5, characterized in that: After synchronously displaying the file to be shared according to the file sharing instruction, the method further includes: A deletion instruction sent by the sharing user terminal is received, and the to-be-shared file is deleted according to the deletion instruction, wherein the deletion instruction is generated by the sharing user terminal in response to the deletion operation of the sharing user.

7. A file sharing method for a multi-screen scenario in a car, characterized in that: Applied to a viewing user terminal, the method includes: In response to the viewing user's permission application operation, determining the permission authentication between the vehicle terminal and the vehicle terminal; Receiving a file to be shared sent by the vehicle terminal, wherein the file to be shared is a file selected and stored in the to-be-shared space by the sharing user terminal in response to a file selection operation of the sharing user, and then selected and sent to the vehicle terminal in the to-be-shared space; Receive a file sharing instruction sent by the sharing vehicle terminal, and synchronously display the file to be shared according to the file sharing instruction, wherein the file sharing instruction is generated by the sharing user terminal when displaying the file to be shared in response to the file sharing operation of the sharing user.

8. The method according to claim 7, characterized in that The sharing user terminal, the vehicle terminal and the viewing user terminal are all equipped with a near field communication NFC module; Accordingly, in response to the viewing user's permission application operation, determining the permission authentication between the vehicle terminal and the vehicle terminal includes: In response to the viewing user's permission application operation, the permission authentication between the vehicle terminal and the vehicle terminal is determined through the NFC module.

9. The method according to claim 7, characterized in that: After synchronously displaying the file to be shared according to the file sharing instruction, the method further includes: A deletion instruction sent by the sharing user terminal is received, and the to-be-shared file is deleted according to the deletion instruction, wherein the deletion instruction is generated by the sharing user terminal in response to the deletion operation of the sharing user.

10. A file sharing device for a multi-screen scenario in a car, characterized in that: Applied to sharing client, including: A first authority management module, configured to determine the authority authentication between the vehicle terminal and the vehicle terminal in response to the authority authentication operation of the sharing user; A first file storage and transmission module, configured to select a file and store it in a to-be-shared space in response to a file selection operation of the sharing user; The file storage and transmission module is further used to select a file to be shared in the to-be-shared space and send it to the vehicle terminal, so that the vehicle terminal stores the file to be shared in the shared file space, and sends the file to be shared to the viewing user terminal that has determined authority authentication with the vehicle terminal, wherein the authority authentication is determined based on the viewing user terminal in response to the viewing user's authority application operation; A first multi-screen synchronization module, configured to display the file to be shared and generate a file sharing instruction in response to the file sharing operation of the sharing user; The first multi-screen synchronization module is used to send the file sharing instruction to the vehicle terminal, so that the vehicle terminal synchronously displays the file to be shared according to the file sharing instruction; The first multi-screen synchronization module is further used to send the file sharing instruction to the viewing user terminal with determined authority authentication, so that the viewing user terminal with determined authority authentication synchronously displays the file to be shared according to the file sharing instruction.

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