Multimedia data processing system and vehicle

Abstract

The embodiment of the utility model provides a multimedia data processing system and a vehicle, and the system comprises a mobile terminal which is used for transmitting multimedia data; the vehicle-mounted terminal is connected with the mobile terminal through a data line, and the vehicle-mounted terminal is used for receiving multimedia data of the mobile terminal through the data line and converting the received multimedia data into signals capable of being displayed. Therefore, according to the embodiment of the invention, the problems of long time and high cost for replacing the vehicle-mounted terminal when the vehicle-mounted terminal cannot meet the performance and computing power requirements of the intelligent automobile in the prior art can be solved.

Description

Technical Field

[0001] The utility model relates to the technical field of multimedia display, in particular to a multimedia data processing system and a vehicle. Background Art

[0002] As users' requirements for car intelligence continue to increase, in-vehicle multimedia systems have higher requirements for hardware performance and computing power. Among them, the time between car upgrades is usually more than 5 years, and the hardware replacement cost of the in-vehicle multimedia host (referred to as the car computer) is high and cannot be replaced frequently. However, with the iteration of software upgrades and the increase of functions, the car computer cannot meet the performance and computing power requirements of smart cars in 5 years, which greatly limits the user experience of the car computer.

[0003] The existing solution is that when users feel that the car computer is stuck, they can go to the 4S store and pay to replace the car computer. However, the replaced car computer cannot be fully adapted to the car, the function is limited, and the car needs to be dismantled for replacement, which is not only time-consuming but also expensive. Utility Model Content

[0004] The embodiments of the present application provide a multimedia data processing system and a vehicle to solve the problem in the prior art that when the vehicle-mounted terminal cannot meet the performance and computing power requirements of the smart car, it takes a long time and is costly to replace the vehicle-mounted terminal.

[0005] In a first aspect, an embodiment of the present application provides a multimedia data processing system, the multimedia data processing system comprising:

[0006] A mobile terminal, wherein the mobile terminal is used to send multimedia data;

[0007] The vehicle-mounted terminal is connected to the mobile terminal via a data line, and the vehicle-mounted terminal is used to receive multimedia data from the mobile terminal via the data line and convert the received multimedia data into a signal that can be displayed.

[0008] Optionally, the vehicle-mounted terminal includes:

[0009] an external port, the external port being connected to the mobile terminal via the data line;

[0010] processor;

[0011] A signal separation circuit, the signal separation circuit is electrically connected to the external port;

[0012] A video switching circuit, the video switching circuit comprising a first video input port, a second video input port, and a video output port, the first video input port is electrically connected to the signal separation circuit, and the second video input port is electrically connected to the processor;

[0013] A video output signal conversion circuit, the video output signal conversion circuit is electrically connected to the video output port, and the video output signal conversion circuit is used to convert video data into a signal that can be displayed;

[0014] The data transmitted by the mobile terminal through the data line is input into the signal separation circuit, the video data is separated by the signal separation circuit, and the separated video data is input into the video switching circuit;

[0015] When the vehicle-mounted terminal is connected to the mobile terminal via the data line, the video switching circuit opens the first video input port and closes the second video input port, and the video data separated by the signal separation circuit is output to the video output signal conversion circuit via the video output port;

[0016] When the vehicle-mounted terminal and the mobile terminal are not connected via the data cable, the video switching circuit opens the second video input port and closes the first video input port, and the video data output by the processor is output to the video output signal conversion circuit via the video output port.

[0017] Optionally, the processor is also electrically connected to the external port;

[0018] The processor is further configured to:

[0019] When it is detected that the potential of the external port is in a first state, a first instruction is sent to the video switching circuit, wherein the first instruction is used to instruct to open the first video input port and close the second video input port; the first state indicates that the external port is connected to the mobile terminal through the data line;

[0020] When it is detected that the potential of the external port is in the second state, a second instruction is sent to the video switching circuit, wherein the second instruction is used to instruct to open the second video input port and close the first video input port, and the second state indicates that the external port is not connected to the mobile terminal through the data line.

[0021] Optionally, the vehicle-mounted terminal further includes:

[0022] An audio switching circuit, the audio switching circuit comprising a first audio input port, a second audio input port, and an audio output port, the first audio input port is electrically connected to the signal separation circuit, and the second audio input port is electrically connected to the processor;

[0023] An audio output signal conversion circuit, the audio output signal conversion circuit is electrically connected to the audio output port, and the audio output signal conversion circuit is used to convert audio data into a playable signal;

[0024] The data transmitted by the mobile terminal through the data line is input into the signal separation circuit, the audio data is separated by the signal separation circuit, and the separated audio data is input into the audio switching circuit;

[0025] When the vehicle-mounted terminal is connected to the mobile terminal via the data line, the audio switching circuit opens the first audio input port and closes the second audio input port, and the audio data separated by the signal separation circuit is output to the audio output signal conversion circuit via the audio output port;

[0026] When the vehicle terminal and the mobile terminal are not connected via the data line, the audio switching circuit opens the second audio input port and closes the first audio input port, and the audio data output by the processor is output to the audio output signal conversion circuit via the audio output port.

[0027] Optionally, the processor is also electrically connected to the external port;

[0028] The processor is further configured to:

[0029] When it is detected that the potential of the external port is in a first state, a third instruction is sent to the audio switching circuit, wherein the third instruction is used to instruct to open the first audio input port and close the second audio input port; the first state indicates that the external port is connected to the mobile terminal through the data line;

[0030] When it is detected that the potential of the external port is in the second state, a fourth instruction is sent to the audio switching switch circuit, wherein the fourth instruction is used to instruct to open the second audio input port and close the first audio input port, and the second state indicates that the external port is not connected to the mobile terminal through the data line.

[0031] Optionally, the signal separation circuit is also electrically connected to the processor;

[0032] The data transmitted by the mobile terminal through the data line is input into the signal separation circuit, the control instruction is separated by the signal separation circuit, and the separated control instruction is input into the processor;

[0033] The processor is used for: executing corresponding control operations in response to the control instruction.

[0034] Optionally, the vehicle-mounted terminal includes a multimedia data display module, and the multimedia display module is electrically connected to the video output signal conversion circuit and the audio output signal conversion circuit respectively.

[0035] Optionally, the multimedia data processing system further includes: a multimedia data display module, which is arranged outside the vehicle-mounted terminal and is electrically connected to the video output signal conversion circuit and the audio output signal conversion circuit respectively.

[0036] Optionally, the multimedia data display module includes a display screen and a speaker, the display screen is electrically connected to the video output signal conversion circuit, and the speaker is electrically connected to the audio output signal conversion circuit.

[0037] In a second aspect, an embodiment of the present application provides a vehicle, comprising the multimedia data processing system described above.

[0038] In the embodiment of the present application, the multimedia data processing system includes: a mobile terminal and a vehicle-mounted terminal, the mobile terminal is used to send multimedia data; the vehicle-mounted terminal is connected to the mobile terminal via a data line, the vehicle-mounted terminal is used to receive the multimedia data of the mobile terminal via the data line, and convert the received multimedia data into a signal that can be displayed. It can be seen that in the embodiment of the present application, the vehicle-mounted terminal can be connected to the mobile terminal via a data line, so that the mobile terminal can transmit multimedia data to the vehicle-mounted terminal via the data line, so that the vehicle-mounted terminal that receives the multimedia data can process the multimedia data of the mobile terminal into a signal that can be displayed without performing protocol conversion.

[0039] Among them, the vehicle terminal and the mobile terminal are connected through a data line, so that the computing power of the mobile terminal can be shared with the vehicle terminal to increase the computing power of the vehicle terminal. In this way, when the vehicle terminal cannot meet the performance and computing power requirements of the smart car, it only needs to connect the vehicle terminal and the mobile terminal through a data line, and the multimedia data of the mobile terminal can be displayed on the vehicle side to achieve computing power sharing, so there is no need to replace the vehicle terminal, saving time and cost. In addition, the multimedia data transmitted through the data line does not need to be converted by protocol, which can reduce data delay and make the display of multimedia data on the vehicle side more accurate and timely. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the description of the embodiments of the present application will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0041] Figure 1 One of the structural block diagrams of the multimedia data processing system provided in the embodiment of the present application;

[0042] Figure 2 The second structural block diagram of the multimedia data processing system provided in the embodiment of the present application;

[0043] Figure 3 A schematic diagram of a specific implementation of a multimedia data processing system provided in an embodiment of the present application. DETAILED DESCRIPTION

[0044] In the embodiments of the present application, the term "and / or" describes the association relationship of the associated objects, indicating that three relationships may exist. For example, A and / or B may represent: A exists alone, A and B exist at the same time, and B exists alone. The character " / " generally indicates that the associated objects before and after are in an "or" relationship.

[0045] In the embodiments of the present application, the term "plurality" refers to two or more than two, and other quantifiers are similar.

[0046] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only 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.

[0047] The embodiments of the present application provide a multimedia data processing system and a vehicle, which are used to solve the problem in the prior art that when the vehicle-mounted terminal cannot meet the performance and computing power requirements of the smart car, it takes a long time and is costly to replace the vehicle-mounted terminal.

[0048] like Figure 1 As shown, an embodiment of the present application provides a multimedia data processing system, the multimedia data processing system comprising:

[0049] A mobile terminal, wherein the mobile terminal is used to send multimedia data;

[0050] The vehicle-mounted terminal is connected to the mobile terminal via a data line, and the vehicle-mounted terminal is used to receive multimedia data from the mobile terminal via the data line and convert the received multimedia data into a signal that can be displayed.

[0051] It is understandable that the vehicle-mounted terminal may also be referred to as a vehicle-mounted host, and the mobile terminal may be a mobile phone, a tablet computer, etc.

[0052] Among them, the data line is used to connect the vehicle-mounted terminal with the mobile terminal for communication; the multimedia data transmitted through the data line does not need to be converted into a protocol; therefore, the vehicle-mounted terminal that receives the multimedia data through the data line can directly convert the multimedia data into a displayable signal after receiving the multimedia data without performing a protocol conversion, thereby reducing data delay and making the display of multimedia data more accurate and timely.

[0053] In addition, the multimedia data includes at least one of text, voice, video, and picture.

[0054] In addition, when the multimedia data includes at least one of text, video, and picture, displaying the multimedia data may be: displaying at least one of the text, video, and picture; when the multimedia file includes at least one of voice and video, displaying the multimedia data may be: playing at least one of the voice and the voice in the video.

[0055] As can be seen from the above, in the embodiment of the present application, the multimedia data processing system includes: a mobile terminal and a vehicle-mounted terminal, the mobile terminal is used to send multimedia data; the vehicle-mounted terminal is connected to the mobile terminal via a data line, the vehicle-mounted terminal is used to receive the multimedia data of the mobile terminal via the data line, and convert the received multimedia data into a signal that can be displayed. It can be seen from this that in the embodiment of the present application, the vehicle-mounted terminal can be connected to the mobile terminal via a data line, so that the mobile terminal can transmit multimedia data to the vehicle-mounted terminal via the data line, so that the vehicle-mounted terminal that receives the multimedia data can process the multimedia data of the mobile terminal into a signal that can be displayed without performing protocol conversion.

[0056] Among them, the vehicle terminal and the mobile terminal are connected through a data line, so that the computing power of the mobile terminal can be shared with the vehicle terminal to increase the computing power of the vehicle terminal. In this way, when the vehicle terminal cannot meet the performance and computing power requirements of the smart car, it only needs to connect the vehicle terminal and the mobile terminal through a data line, and the multimedia data of the mobile terminal can be displayed on the vehicle side to achieve computing power sharing, so there is no need to replace the vehicle terminal, saving time and cost. In addition, the multimedia data transmitted through the data line does not need to be converted by protocol, which can reduce data delay and make the display of multimedia data on the vehicle side more accurate and timely.

[0057] Alternatively, if Figure 2 As shown, the vehicle-mounted terminal 1 includes:

[0058] an external port 23, the external port 23 being connected to the mobile terminal 8 via the data line;

[0059] Processor 15;

[0060] A signal separation circuit 18, wherein the signal separation circuit 18 is electrically connected to the external port 23;

[0061] A video switching circuit 19, wherein the video switching circuit 19 comprises a first video input port, a second video input port, and a video output port, wherein the first video input port is electrically connected to the signal separation circuit 18, and the second video input port is electrically connected to the processor 15;

[0062] A video output signal conversion circuit 21, the video output signal conversion circuit 21 is electrically connected to the video output port, and the video output signal conversion circuit 21 is used to convert video data into a signal that can be displayed;

[0063] The data transmitted by the mobile terminal 8 through the data line is input to the signal separation circuit 18, the video data is separated by the signal separation circuit 18, and the separated video data is input to the video switching circuit 19;

[0064] When the vehicle-mounted terminal 1 is connected to the mobile terminal 8 via the data line, the video switching circuit 19 opens the first video input port and closes the second video input port, and the video data separated by the signal separation circuit 18 is output to the video output signal conversion circuit 21 via the video output port;

[0065] When the vehicle-mounted terminal 1 and the mobile terminal 8 are not connected via the data cable, the video switching circuit 19 opens the second video input port and closes the first video input port, and the video data output by the processor 15 is output to the video output signal conversion circuit 21 via the video output port.

[0066] It can be seen from this that a signal separation circuit 18 can be set in the vehicle terminal 1 so that it can receive data transmitted by the mobile terminal 8 through the data line and then separate the video data therefrom; a video switching circuit 19 can also be set in the vehicle terminal 1 so that when the mobile terminal 8 is connected to the vehicle terminal 1 through a data line, the vehicle terminal 1 can share the computing power of the mobile terminal, and when the two are not connected through a data line, the vehicle terminal 1 can maintain the original video processing capability.

[0067] It can be seen that the vehicle-mounted terminal 1 of the embodiment of the present application can separate the video data from the data sent by the mobile terminal 8 and convert it into a video signal that can be displayed without affecting the conversion of the video data generated by the processor 15 into a video signal that can be displayed. In this way, the processing of the video data of the mobile terminal 8 can be realized without affecting the original processing function of the vehicle-mounted terminal 1 for the video data, thereby realizing the sharing of the relevant computing power of the video function of the mobile terminal 8.

[0068] Exemplarily, the video data output by the processor 15 may include video data of an application on the vehicle-mounted terminal.

[0069] Alternatively, if Figure 2 As shown, the processor 15 is also electrically connected to the external port 23;

[0070] The processor 15 is further configured to:

[0071] When it is detected that the potential of the external port 23 is in the first state, a first instruction is sent to the video switching circuit 19, wherein the first instruction is used to instruct to open the first video input port and close the second video input port; the first state indicates that the external port 23 is connected to the mobile terminal 8 through the data line;

[0072] When it is detected that the potential of the external port 23 is in the second state, a second instruction is sent to the video switching circuit 19, and the second instruction is used to instruct to open the second video input port and close the first video input port. The second state indicates that the external port 23 is not connected to the mobile terminal 8 through the data line.

[0073] It can be seen from this that the potential of the external port 23 can be detected by the processor 15 to determine whether a data line is connected between the mobile terminal 8 and the external port 23, so that the opening and closing of the two video input ports of the video switching switch circuit 19 can be controlled in time, and then when the external port 23 is connected to the mobile terminal 8 through a data line, the video data of the mobile terminal 8 can be output to the video output signal conversion circuit 21 through the video switching switch circuit 19, so as to realize the sharing of the computing power of the mobile terminal; when the external port 23 is not connected to the mobile terminal 8 through a data line, the video data of the processor 15 can be output to the video output signal conversion circuit 21 through the video switching switch circuit 19, so as to ensure the original function of the vehicle-mounted terminal.

[0074] Alternatively, if Figure 2 As shown, the vehicle-mounted terminal also includes:

[0075] An audio switching circuit 22, wherein the audio switching circuit 22 comprises a first audio input port, a second audio input port, and an audio output port, wherein the first audio input port is electrically connected to the signal separation circuit 18, and the second audio input port is electrically connected to the processor 15;

[0076] An audio output signal conversion circuit 20, the audio output signal conversion circuit 20 is electrically connected to the audio output port, and the audio output signal conversion circuit 20 is used to convert audio data into a playable signal;

[0077] The data transmitted by the mobile terminal 8 through the data line is input to the signal separation circuit 18, the audio data is separated by the signal separation circuit 18, and the separated audio data is input to the audio switching circuit 22;

[0078] When the vehicle-mounted terminal 1 is connected to the mobile terminal 8 via the data line, the audio switching circuit 22 opens the first audio input port and closes the second audio input port, and the audio data separated by the signal separation circuit 18 is output to the audio output signal conversion circuit 20 via the audio output port;

[0079] When the vehicle terminal 1 and the mobile terminal 8 are not connected via the data cable, the audio switching circuit 22 opens the second audio input port and closes the first audio input port, and the audio data output by the processor 15 is output to the audio output signal conversion circuit 20 via the audio output port.

[0080] It can be seen from this that the signal separation circuit 18 can also separate audio data from the data transmitted by the mobile terminal 8 through the data line; and an audio switching switch circuit 22 is set in the vehicle terminal 1, so that when the mobile terminal 8 is connected to the vehicle terminal 1 through a data line, the vehicle terminal 1 can share the computing power of the mobile terminal, and when the two are not connected through a data line, the vehicle terminal 1 can maintain the original audio processing capability.

[0081] It can be seen that the vehicle-mounted terminal 1 of the embodiment of the present application can separate the audio data from the data sent by the mobile terminal 8 and convert it into an audio signal that can be displayed without affecting the conversion of the audio data generated by the processor 15 into an audio signal that can be displayed. In this way, without affecting the original processing function of the vehicle-mounted terminal 1 for audio data, the audio data of the mobile terminal 8 can be processed, thereby realizing the relevant computing power of the audio function of the mobile terminal 8.

[0082] Exemplarily, the audio data output by the processor 15 may include at least one of audio data of an application on the vehicle terminal and a vehicle prompt sound.

[0083] Optionally, the processor is also electrically connected to the external port;

[0084] The processor 15 is further configured to:

[0085] When it is detected that the potential of the external port 23 is in the first state, a third instruction is sent to the audio switching circuit 22, wherein the third instruction is used to instruct to open the first audio input port and close the second audio input port; the first state indicates that the external port 23 is connected to the mobile terminal 8 through the data line;

[0086] When it is detected that the potential of the external port 23 is in the second state, a fourth instruction is sent to the audio switching switch circuit 22, and the fourth instruction is used to instruct to open the second audio input port and close the first audio input port. The second state indicates that the external port 23 is not connected to the mobile terminal 8 through the data line.

[0087] It can be seen from this that the processor 15 can detect the potential of the external port 23 to determine whether a data line is connected between the mobile terminal 8 and the external port 23, so that the opening and closing of the two audio input ports of the audio switching switch circuit 22 can be controlled in time, and then when the external port 23 is connected to the mobile terminal 8 through a data line, the audio data of the mobile terminal 8 can be output to the audio output signal conversion circuit 20 through the audio switching switch circuit 22, so as to realize the sharing of the computing power of the mobile terminal; when the external port 23 and the mobile terminal 8 are not connected through a data line, the audio data of the processor 15 can be output to the audio output signal conversion circuit 20 through the audio switching switch circuit 22, so as to ensure the original function of the vehicle-mounted terminal.

[0088] Optionally, the signal separation circuit 18 is also electrically connected to the processor 15;

[0089] The data transmitted by the mobile terminal 8 through the data line is input into the signal separation circuit 18, the control instruction is separated by the signal separation circuit 18, and the separated control instruction is input into the processor 15;

[0090] The processor 15 is used to respond to the control instruction and execute a corresponding control operation.

[0091] It can be seen from this that the mobile terminal 8 can also send control instructions to the vehicle-mounted terminal. In this way, after the control instructions are separated by the signal separation circuit 18, they can be transmitted to the processor 15, and the processor 15 responds, thereby realizing the control of the vehicle-mounted terminal 1 by the mobile terminal 8.

[0092] Exemplarily, the control instructions may include at least one of an instruction to adjust the video progress (such as fast forward or rewind), an instruction to change the next or previous video, an instruction to adjust the audio progress, an instruction to change the next or previous audio, an instruction to adjust the number of displayed pages of text, and an instruction to change the next or previous picture.

[0093] Optionally, the vehicle-mounted terminal includes a multimedia data display module, and the multimedia display module is electrically connected to the video output signal conversion circuit and the audio output signal conversion circuit respectively.

[0094] Alternatively, if Figure 2 As shown, the multimedia data processing system also includes: a multimedia data display module 9, which is arranged outside the vehicle-mounted terminal, and the multimedia display module 9 is electrically connected to the video output signal conversion circuit 21 and the audio output signal conversion circuit 20 respectively.

[0095] It can be seen that the vehicle-mounted terminal itself can have a multimedia data display function, that is, the vehicle-mounted terminal includes a multimedia data display module. In this case, after the vehicle-mounted terminal receives the multimedia data from the mobile terminal, it does not need to perform protocol conversion, but can directly convert it into a displayable signal, and then the multimedia data display module included in the vehicle-mounted terminal displays it;

[0096] Alternatively, the vehicle terminal can also be connected to an external multimedia data display module. In this case, after the vehicle terminal receives the multimedia data from the mobile terminal, it can be directly converted into a displayable signal without the need for protocol conversion, and then sent to the external multimedia data display module of the vehicle terminal for display.

[0097] Optionally, the multimedia data display module includes a display screen and a speaker, the display screen is electrically connected to the video output signal conversion circuit, and the speaker is electrically connected to the audio output signal conversion circuit.

[0098] From this, it can be seen that a display screen can be set on the vehicle terminal, so that when multimedia data is displayed, it can be displayed on the display screen of the vehicle terminal; or, the vehicle terminal may not be provided with a display screen, but the vehicle terminal may be connected to an external display screen, so that when multimedia data is displayed, the vehicle terminal can send the received multimedia data to the display screen for display.

[0099] Similarly, a speaker (also called an amplifier) ​​may be provided on the vehicle terminal, so that when multimedia data is played, it can be played by the speaker of the vehicle terminal; or, a speaker may not be provided on the vehicle terminal, but a speaker may be externally connected to the vehicle terminal, so that when multimedia data is played, the vehicle terminal can send the received multimedia data to the speaker for playback.

[0100] In addition, in order to facilitate understanding of the multimedia data processing system of the embodiment of the present application, the interaction process between the vehicle terminal and the mobile terminal in the system is introduced as follows:

[0101] In the first aspect, optionally, before the vehicle-mounted terminal receives the multimedia data sent by the mobile terminal through the data line, the following steps A-1 to A-2 may be performed:

[0102] Step A-1: ​​when it is detected that the vehicle-mounted terminal is connected to the mobile terminal via a data cable, displaying a target list, wherein the target list includes identification information of at least one application on the mobile terminal;

[0103] Step A-2: When a first operation on one of the identification information in the target list is detected, a first request is sent to the mobile terminal, wherein the first request is used to request multimedia data of a first application, and the first application is an application identified by the identification information corresponding to the first operation;

[0104] The process of the vehicle-mounted terminal receiving the multimedia data sent by the mobile terminal through the data line includes:

[0105] The multimedia data of the first application program sent by the mobile terminal is received via the data line.

[0106] Exemplarily, when the vehicle-mounted terminal detects that it is connected to the mobile terminal via a data cable, the vehicle-mounted terminal can display a target list, for example, the target list includes identification information of applications A, B, and C. If the user selects the identification information of application A, the vehicle-mounted terminal sends a first request to the mobile terminal to request the multimedia data of application A.

[0107] The target list includes identification information of at least one application on the mobile terminal, indicating that the vehicle terminal can display the content of at least one application on the mobile terminal. It is understandable that the target list can be preset by the user, for example, the user can input the target list in the vehicle terminal so that the vehicle terminal stores the target list; or the user can select an application on the vehicle terminal, so that the identification information of the application on the mobile terminal corresponding to the selected application on the vehicle terminal (for example, corresponding functions) can be automatically stored in the target list.

[0108] It is understandable that the above-mentioned operation of setting the target list can also be performed on the mobile terminal side, and the specific execution process is the same as the process of setting the target list on the vehicle terminal side, which will not be repeated here. However, it should be noted that if the target list setting operation is performed on the mobile terminal side, then after the mobile terminal and the vehicle terminal are connected via a data cable, the mobile terminal can send its stored target list to the vehicle terminal for display.

[0109] In addition, the first operation is a selection or choice operation on one of the identification information in the target list. For example, the first operation can be one of the operations of clicking, double-clicking, long pressing, and dragging on one of the identification information in the target list.

[0110] In addition, the first request may carry identification information of the first application, so that after receiving the first request, the mobile terminal can know which application's multimedia data needs to be sent to the vehicle-mounted terminal.

[0111] From the above, it can be seen that in the embodiment of the present application, the user can independently choose on the vehicle terminal which application's multimedia data of the mobile terminal needs to be displayed on the vehicle terminal, so as to meet the different needs of different users. It can be seen that the way the vehicle terminal displays the multimedia data of the mobile terminal is different from the screen projection operation in the prior art, that is, in the embodiment of the present application, the content of a specific application on the mobile terminal can be displayed, rather than what the mobile terminal displays and what the vehicle terminal displays. In this case, when the content of a certain application of the mobile terminal is displayed on the vehicle terminal, the mobile terminal may not display the content of the application, for example, the application can run in the background.

[0112] Of course, it is understandable that in the embodiment of the present application, when the vehicle-mounted terminal and the mobile terminal are connected via a data cable, the vehicle-mounted terminal can also display the desktop data of the mobile terminal, that is, the screen projection from the mobile terminal to the vehicle-mounted terminal can also be achieved through the data cable.

[0113] In the second aspect, optionally, the vehicle terminal may further perform the following steps B-1 to B-2:

[0114] Step B-1: When a second operation on the vehicle-mounted terminal is detected, an operation instruction corresponding to the second operation is sent to the mobile terminal;

[0115] Step B-2: receiving updated multimedia data sent by the mobile terminal, wherein the updated multimedia data is obtained after the mobile terminal responds to the operation instruction.

[0116] It is understandable that the second operation may include at least one of an operation on a physical button of the vehicle terminal (or on the car), an operation on a combination of physical buttons, and a touch operation on the display screen of the vehicle terminal. The operation instruction corresponding to the second operation may include at least one of an instruction to adjust the video progress (such as fast forward or rewind), an instruction to change the next or previous video, an instruction to adjust the audio progress, an instruction to change the next or previous audio, an instruction to adjust the number of displayed pages of text, and an instruction to change the next or previous picture.

[0117] For example, when the multimedia file includes a video, when the vehicle-mounted terminal displays the video on the mobile terminal, if the user operates the first preset physical button on the vehicle-mounted terminal, or slides in a predetermined direction (for example, backward) on the display screen of the vehicle-mounted terminal, the vehicle-mounted terminal sends an operation instruction to fast forward the first predetermined time length to the mobile terminal, and the mobile terminal controls the corresponding video to fast forward the first predetermined time length.

[0118] It can be seen from this that in the embodiment of the present application, the multimedia data of the mobile terminal can also be controlled to be updated by operating on the vehicle-mounted terminal, so that when it is inconvenient for the user to operate the mobile terminal, the display of the multimedia data can be adjusted by operating the vehicle-mounted terminal, further improving the convenience of user use.

[0119] In a third aspect, optionally, the process of the mobile terminal sending multimedia data to the vehicle-mounted terminal through the data line may include the following step D-1:

[0120] Step D-1: When a third operation on the identification information of one of the applications on the mobile terminal is detected, multimedia data of a second application is sent to the vehicle-mounted terminal via the data line, wherein the second application is the application identified by the identification information corresponding to the third operation.

[0121] In addition, the third operation is a selection or choice operation of identification information of one of the applications on the mobile terminal. For example, the third operation may be one of click, double click, long press, and drag on the identification information of the application.

[0122] It can be seen that in the embodiment of the present application, the user can independently select on the mobile terminal which application's multimedia data of the mobile terminal needs to be displayed on the vehicle terminal, thereby meeting the different needs of different users.

[0123] It is understandable that the target list mentioned above can also be displayed on the mobile terminal, so that the user can select the identification information of an application from the target list displayed on the mobile terminal, thereby triggering the mobile terminal to send the multimedia data of the application to the vehicle terminal.

[0124] In a fourth aspect, the mobile terminal may further perform the following steps:

[0125] When a fourth operation is received, generating an operation instruction corresponding to the fourth operation;

[0126] In response to the operation instruction, the multimedia data currently displayed by the vehicle-mounted terminal is updated, and the updated multimedia data is sent to the vehicle-mounted terminal.

[0127] The fourth operation may include at least one of an operation on a physical button of the mobile terminal, an operation on a combination of physical buttons, and a touch operation on a display screen of the mobile terminal. The operation instruction corresponding to the fourth operation may include at least one of an instruction to adjust the video progress (such as fast forward or rewind), an instruction to change the next or previous video, an instruction to adjust the audio progress, an instruction to change the next or previous audio, an instruction to adjust the number of displayed pages of text, and an instruction to change the next or previous picture.

[0128] It can be seen that in the embodiment of the present application, the multimedia data displayed on the vehicle terminal can also be controlled to be updated through operations on the mobile terminal, further improving the convenience of user use.

[0129] In summary, the specific implementation of the multimedia data processing system of the embodiment of the present application can be as follows: Figure 3 shown.

[0130] The multimedia data processing system includes a vehicle-mounted terminal 1, a Bluetooth (BT) / wireless LAN (WIFI) antenna 2, an FM / AM antenna 3, a 4G / 5G / Global Positioning System (GPS) video antenna 4, a vehicle communication and power supply device 5, an external amplifier / speaker 6, a display screen 7, and a mobile terminal 8.

[0131] Among them, the BT / WIFI antenna 2 corresponding to the vehicle terminal 1 is installed on the top of the car and connected to the BT / WIFI module 11 through a coaxial cable. The BT / WIFI module demodulates the received and sent wireless signals and restores them into audio and video streaming media, and transmits them to the processor 15 through interfaces such as PCIE / UART / TDM / SDIO. The processor 15 performs encoding and decoding operations on the audio and video streaming media and restores them into audio and video signals. Exemplarily, the processor 15 can be a microprocessor.

[0132] Among them, PCIE stands for high-speed serial computer expansion bus standard, UART stands for universal asynchronous receiver and transmitter, TDM stands for time division multiplexing, and SDIO stands for secure digital input and output.

[0133] The FM / AM antenna 3 corresponding to the vehicle terminal 1 is installed on the upper part of the vehicle and connected to the FM / AM circuit 12 via a coaxial cable. The FM / AM circuit 12 restores the received broadcast signal to a digital audio signal and transmits it to the processor 15 via a TDM / I2S interface. The processor 15 performs encoding and decoding operations on the audio signal. Among them, I2S represents the audio bus built into the integrated circuit.

[0134] The 4G / 5G / GPSI antenna 4 corresponding to the vehicle terminal 1 is installed on the top of the car and connected to the 4G / 5G / GPS module 13 via a coaxial cable. The 4G / 5G / GPS module 13 demodulates the received and sent 4G / 5G / GPS wireless radio frequency signal and restores it to audio and video streaming media, and transmits it to the processor 15 through interfaces such as PCIE / UART / TDM / SDIO. The processor 15 performs encoding and decoding operations on the audio and video streaming media and restores it to audio and video signals.

[0135] The mobile terminal 8 and the vehicle terminal 1 are connected by a data line, and transmit electrical signals including video signals, audio signals, USB signals (used to indicate whether the mobile terminal and the vehicle terminal are connected via a data line), touch screen signals, etc. These signals are separated by the signal separation circuit 18, and the separated USB signals enter the processor 15, so that the processor 15 controls the signal path of the video switching circuit 19 and the audio switching circuit 22 based on the USB signals, and the communication signals such as the touch screen enter the system-on-a-chip (System on a Chip, SOC) for processing and interaction; the separated mobile terminal video signal is sent to the video switching circuit 19; the separated mobile terminal audio signal is sent to the audio switching circuit 22.

[0136] The processor 15 inputs the video to the video switching circuit 19 in the form of MIPI / DP / LVDS signals, and inputs the audio signal to the audio switching circuit 22. The processor 15 controls the video switching circuit 19 to perform video switching, and controls the audio switching circuit 22 to perform audio switching. MIPI stands for Mobile Industry Processor Interface, DP stands for a digital interface standard for video and audio transmission, and LVDS stands for Low Voltage Differential Signal.

[0137] When the computing power of the mobile terminal is not used, the in-vehicle display screen displays the video signal sent by the processor 15, and the mobile terminal does not send a video signal; the video switching circuit 19 transmits the video output by the processor 15 to the video output signal conversion circuit 21.

[0138] When the computing power of the mobile terminal is used, the in-vehicle display screen displays the video signal provided by the mobile terminal. The video switching switch 19 sends the video output by the signal separation circuit 18 to the video output signal conversion circuit 21.

[0139] Similarly, when the computing power of the mobile terminal is not used, the external amplifier / speaker 6 plays the audio signal emitted by the processor 15, and the mobile terminal does not send an audio signal; the audio switching circuit 22 sends the audio output by the processor 15 to the audio output signal conversion circuit 20.

[0140] When the computing power of the mobile terminal is used, the external power amplifier / speaker 6 plays the audio signal provided by the mobile terminal. The audio switching circuit 22 transmits the audio output by the signal separation circuit 18 to the audio output signal conversion circuit 20.

[0141] The video output signal conversion circuit 21 converts the received video signal into a signal suitable for long-distance transmission, and transmits it to the display screen 7 for display.

[0142] The audio output signal conversion circuit 20 converts the received audio signal (ie, digital audio signal) into an analog audio signal and performs power amplification, and then transmits it to the external power amplifier / speaker 6. The external power amplifier / speaker 6 broadcasts the audio content or prompt tone.

[0143] Among them, the large-capacity storage circuit 16 is a non-volatile memory, which can still save data when the power is off, and is used to store the operating system, application programs, photos, videos and other data that need long-term fixed storage of the processor 15. It has a large storage capacity and a slow storage speed, and is used to store a large number of temporarily unused programs, data and intermediate results. Commonly used storage circuits include embedded memory standard specifications (EMMC), mobile device interface (Universal Flash Storage, UFS), hardware, USB flash drives, etc.

[0144] Double data rate synchronous dynamic random access memory (DDR) 17 is a random access memory, and data will be cleared when power is off. DDR has a small storage capacity and a fast speed. It is used to store instructions and data of the currently running program and directly exchange information with the processor 15. Commonly used DDR circuits include DDR3, DDR4, DDR5, etc.

[0145] The Controller Area Network (CAN) / Local Interconnect Network (LIN) circuit communicates with the car's CAN and LIN buses to perform vehicle settings and voice control functions, and realize air conditioning information display and settings; the GPS signal receiving and processing circuit obtains the clock display and performs navigation positioning; the USB circuit can communicate with the USB flash drive and play the content of the USB flash drive; the automotive Ethernet circuit communicates with the car's Ethernet to perform vehicle status or network data sharing with on-board electrical components (T-BOX); the power supply circuit supplies power to the entire multimedia system.

[0146] In summary, in the multimedia data processing system of the embodiment of the present application, the mobile terminal 8 serves as a computing center of the system and undertakes part of the data processing function. The mobile terminal 8 is connected to the vehicle-mounted terminal 1 via a data line and communicates with the vehicle-mounted terminal. The video, audio and communication signals of the mobile terminal 8 are sent to the signal separation circuit 18 in the vehicle-mounted terminal 1 via the data line. The signal separation circuit 18 separates the video, audio and communication data of the mobile terminal, wherein the video is sent to the video switching circuit 19, and is converted into a signal suitable for long-distance transmission by the video output signal conversion circuit 21, and is transmitted to the display screen 7 for display; the audio is sent to the audio switching circuit 22, and is converted into an analog audio signal by the audio output signal conversion circuit 20 and power amplified, and then transmitted to the external power amplifier / speaker 6 for playback; the communication signal is separated and enters the processor for interactive communication between the processor and the mobile terminal.

[0147] It can be seen that the multimedia data processing system of the embodiment of the present application is a brand-new in-vehicle multimedia system in which the mobile terminal and the in-vehicle terminal share computing power. The in-vehicle terminal and the mobile terminal are connected via a data cable, and through computing power sharing, the computing power of the mobile terminal is shared with the in-vehicle terminal, thereby increasing the computing power of the in-vehicle terminal and providing more functions for users.

[0148] Among them, the mobile terminal is connected to the vehicle terminal through a data cable, and directly transmits video format data. No signal / protocol conversion is required during transmission, and the signal does not need to be processed by the vehicle terminal SOC. The data transmission delay is reduced to less than 5mS. The low delay makes the navigation reminder more accurate, bringing a better human-computer interaction experience; moreover, the video does not need to be transferred through the vehicle terminal SOC, but is directly transmitted to the in-vehicle display screen by the video switching circuit. Using a higher-performance mobile terminal can provide a video screen with a resolution and clarity that exceeds the original in-vehicle terminal; in addition, the mobile terminal screen is directly transmitted to the in-vehicle display screen, and the in-vehicle display screen can display and apply all the functions of the mobile terminal. The content of the transmission is unlimited, and the functions of the transmission do not need to be adapted and developed.

[0149] In addition, the system can use vehicle terminals with lower hardware configuration to achieve functions with high hardware configuration, bringing better experience to users.

[0150] In short, with the continuous upgrading of mobile terminals, the computing power of this in-vehicle multimedia system can be rapidly improved to meet the rapidly growing computing power requirements of the car's intelligent cockpit system. Users do not need to replace the in-vehicle terminal and can use the latest software and applications every year, which extends the service life of the in-vehicle multimedia system and saves costs for users.

[0151] The embodiment of the present application further provides a vehicle, comprising the multimedia data processing system described above. It is understandable that the relevant description of the multimedia data processing system can be found in the above description, and will not be repeated here.

[0152] In addition, in the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0153] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

[0154] Obviously, those skilled in the art can make various changes and modifications to the present application without departing from the spirit and scope of the present application. Thus, if these modifications and variations of the present application fall within the scope of the claims of the present application and their equivalents, the present application is also intended to include these modifications and variations.

Claims

1. A multimedia data processing system, characterized in that: The multimedia data processing system comprises: A mobile terminal, wherein the mobile terminal is used to send multimedia data; A vehicle-mounted terminal, the vehicle-mounted terminal is connected to the mobile terminal via a data line, the vehicle-mounted terminal is used to receive multimedia data from the mobile terminal via the data line, and convert the received multimedia data into a signal that can be displayed; Wherein, the vehicle-mounted terminal includes: an external port, the external port being connected to the mobile terminal via the data cable; processor; A signal separation circuit, the signal separation circuit is electrically connected to the external port; A video switching circuit, the video switching circuit comprising a first video input port, a second video input port, and a video output port, the first video input port is electrically connected to the signal separation circuit, and the second video input port is electrically connected to the processor; A video output signal conversion circuit is electrically connected to the video output port, and is used to convert video data into a displayable signal.

2. The multimedia data processing system according to claim 1, characterized in that: The data transmitted by the mobile terminal through the data line is input into the signal separation circuit, the video data is separated by the signal separation circuit, and the separated video data is input into the video switching circuit; When the vehicle-mounted terminal is connected to the mobile terminal via the data line, the video switching circuit opens the first video input port and closes the second video input port, and the video data separated by the signal separation circuit is output to the video output signal conversion circuit via the video output port; When the vehicle-mounted terminal and the mobile terminal are not connected via the data cable, the video switching circuit opens the second video input port and closes the first video input port, and the video data output by the processor is output to the video output signal conversion circuit via the video output port.

3. The multimedia data processing system according to claim 2, characterized in that: The processor is also electrically connected to the external port; The processor is further configured to: When it is detected that the potential of the external port is in a first state, a first instruction is sent to the video switching circuit, wherein the first instruction is used to instruct to open the first video input port and close the second video input port; the first state indicates that the external port is connected to the mobile terminal through the data line; When it is detected that the potential of the external port is in the second state, a second instruction is sent to the video switching circuit, wherein the second instruction is used to instruct to open the second video input port and close the first video input port, and the second state indicates that the external port is not connected to the mobile terminal through the data line.

4. The multimedia data processing system according to claim 2, characterized in that: The vehicle-mounted terminal also includes: An audio switching circuit, the audio switching circuit comprising a first audio input port, a second audio input port, and an audio output port, the first audio input port is electrically connected to the signal separation circuit, and the second audio input port is electrically connected to the processor; An audio output signal conversion circuit, the audio output signal conversion circuit is electrically connected to the audio output port, and the audio output signal conversion circuit is used to convert audio data into a playable signal; The data transmitted by the mobile terminal through the data line is input into the signal separation circuit, the audio data is separated by the signal separation circuit, and the separated audio data is input into the audio switching circuit; When the vehicle-mounted terminal is connected to the mobile terminal via the data line, the audio switching circuit opens the first audio input port and closes the second audio input port, and the audio data separated by the signal separation circuit is output to the audio output signal conversion circuit via the audio output port; When the vehicle terminal and the mobile terminal are not connected via the data line, the audio switching circuit opens the second audio input port and closes the first audio input port, and the audio data output by the processor is output to the audio output signal conversion circuit via the audio output port.

5. The multimedia data processing system according to claim 4, characterized in that: The processor is also electrically connected to the external port; The processor is further configured to: When it is detected that the potential of the external port is in a first state, a third instruction is sent to the audio switching circuit, wherein the third instruction is used to instruct to open the first audio input port and close the second audio input port; the first state indicates that the external port is connected to the mobile terminal through the data line; When it is detected that the potential of the external port is in the second state, a fourth instruction is sent to the audio switching switch circuit, wherein the fourth instruction is used to instruct to open the second audio input port and close the first audio input port, and the second state indicates that the external port is not connected to the mobile terminal through the data line.

6. The multimedia data processing system according to any one of claims 2 to 5, characterized in that: The signal separation circuit is also electrically connected to the processor; The data transmitted by the mobile terminal through the data line is input into the signal separation circuit, the control instruction is separated by the signal separation circuit, and the separated control instruction is input into the processor; The processor is used for: executing corresponding control operations in response to the control instruction.

7. The multimedia data processing system according to claim 4, characterized in that: The vehicle-mounted terminal comprises a multimedia data display module, and the multimedia data display module is electrically connected to the video output signal conversion circuit and the audio output signal conversion circuit respectively.

8. The multimedia data processing system according to claim 4, characterized in that: The multimedia data processing system further includes: a multimedia data display module, which is arranged outside the vehicle-mounted terminal and is electrically connected to the video output signal conversion circuit and the audio output signal conversion circuit respectively.

9. The multimedia data processing system according to claim 7 or 8, characterized in that: The multimedia data display module includes a display screen and a speaker. The display screen is electrically connected to the video output signal conversion circuit, and the speaker is electrically connected to the audio output signal conversion circuit.

10. A vehicle, characterized in that: The vehicle comprises the multimedia data processing system according to any one of claims 1 to 9.

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