CN219322461U - Audio interface communication device of entertainment screen and vehicle - Google Patents
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Abstract
The utility model provides an audio interface communication device of an entertainment screen and a vehicle, wherein the device comprises: the system comprises a domain control module, a display module, a video connecting wire and an audio interface, wherein the domain control module is used for processing video signals and/or audio signals; the display module is used for outputting audio source data corresponding to the audio signals to the audio interface and/or outputting video data corresponding to the video signals to the video display module, and the video connecting wire is used for receiving the audio signals and/or the video signals sent by the domain control module and sending the audio signals and/or the video signals to the display module; the utility model reduces the production cost of independent audio wires, is beneficial to mass production popularization, expands the communication mode of the entertainment screen configuration audio output interface and the domain control module, can greatly improve the audio signal quality and the stability of signal transmission, and improves the experience of users.
Description
Technical Field
The utility model relates to the technical field of vehicles, in particular to an audio interface communication device of an entertainment screen and a vehicle.
Background
With the development of intelligent cabins, the processing of graphics and audio of entertainment screens of the rear row of vehicles has been integrated into the domain control module of the cabin.
Fig. 1 is a schematic diagram of an audio interface communication of an entertainment screen in the related art. The entertainment screen of the rear row of the vehicle is used as display equipment and audio output equipment, and an independent audio line is used as an external communication medium between the cabin domain control module and the audio output interface in the entertainment screen of the rear row of the vehicle under the scene that the audio output interface is configured on the entertainment screen of the rear row of the vehicle.
However, by adopting an independent audio line, the transmission performance of the audio line is influenced by the resistance value of the wire, and as the audio line is longer, the resistance is larger, the loss of the signal in the transmission process is increased, so that the hearing is obviously changed, such as the sense of strength and fullness is reduced, the high-frequency signal is attenuated, and the detail and the analytic power of sound are relatively degraded; meanwhile, the anti-electromagnetic interference performance of the audio line is also affected, the probability and the intensity of electromagnetic signal interference increase along with the longer audio line, the noise floor of the audio increases, the definition and the dynamics of tone color are reduced, noise abnormal sound is mixed in the audio, the playing quality is seriously affected, the experience of a user is reduced, especially on an automobile with a complex electrical environment, the risk of the audio line being interfered is higher, the length and the wiring construction of the audio line are required to be subjected to strict planning and processing, the structural layout of the vehicle is affected, and the production cost is increased.
Disclosure of Invention
The present utility model aims to solve at least one of the technical problems existing in the prior art.
Therefore, an object of the present utility model is to provide an audio interface communication device for an entertainment screen, which reduces the production cost of an independent audio line, is beneficial to mass production and popularization, expands the communication mode of the audio output interface and the domain control module configured by the entertainment screen, can greatly improve the quality of audio signals and the stability of signal transmission, and improves the experience of users.
To this end, a second object of the utility model is to propose a vehicle.
To achieve the above object, an embodiment of a first aspect of the present utility model proposes an audio interface communication device of an entertainment screen, the audio interface communication device of an entertainment screen including: a domain control module for processing the video signal and/or the audio signal; the display module is connected with the domain control module through a video connecting wire and is used for outputting audio source data corresponding to the audio signals to an audio interface and/or outputting video data corresponding to the video signals to a video display module, wherein the video connecting wire is used for receiving the audio signals and/or the video signals sent by the domain control module and sending the audio signals and/or the video signals to the display module; the audio interface is connected with the display module and used for receiving the sound source data and providing a communication interface of the sound source data.
According to the audio interface communication device of the entertainment screen, the domain control module transmits the processed video signals and/or audio signals to the display module through the data channels in the video connecting lines by multiplexing the data channels in the video connecting lines, after the audio signals and/or the video signals are processed and output through the display module, a user can check and receive the audio and the video through the display module, the production cost of an independent audio line is reduced by adopting the data channels of the original video connecting lines, the volume production popularization is facilitated, the communication mode of the entertainment screen configuration audio output interface and the domain control module is expanded, the quality of the audio signals and the stability of signal transmission can be greatly improved, and the experience of the user is improved.
In some embodiments, the video connection line comprises a video signal processing channel.
In some embodiments, the display module includes: the deserializing unit is connected with the domain control module through the video signal processing channel and is used for restoring the audio signal and/or the video signal sent by the domain control module so as to correspondingly output the audio source data to the audio interface and/or output the video data to the video display module; the first processing unit is connected with the deserializing unit and is used for processing the sound source data and outputting the processed sound source data to the audio interface.
In some embodiments, the first processing unit comprises: the first processing subunit is connected with the deserializing unit through a first interface based on a first preset protocol and is used for outputting the sound source data to the audio interface when the sound source data are two-channel sound sources; or the second processing subunit is communicated with the deserializing unit through a second preset protocol and is used for outputting the sound source data to the audio interface when the sound source data are two-channel sound sources.
In some embodiments, the first processing unit comprises: the first processing subunit is connected with the deserializing unit through a second interface based on a third preset protocol and is used for outputting the sound source data to the audio interface when the sound source data are multi-channel sound sources.
In some embodiments, the domain control module comprises: the vehicle-mounted entertainment unit is used for processing the video signal and/or the audio signal; and the serial unit is connected with the vehicle-mounted entertainment unit and is used for receiving the processed video signals and/or audio signals and sending the video signals and/or audio signals to the display module.
In some embodiments, the domain control module further comprises: the second processing unit is connected with the vehicle-mounted entertainment unit and is used for receiving the processed video signals and/or audio signals, processing the video signals and/or audio signals again according to processing requirements and outputting the processed video signals and/or audio signals to the serial unit.
In some embodiments, the second processing unit comprises: the fourth processing subunit is connected with the serial unit through a third interface based on a fourth preset protocol and is used for outputting the audio signal to the serial unit when the audio signal is a two-channel signal; or the fourth processing subunit is connected with the serial unit based on a fifth preset protocol, and is used for outputting the audio signal to the serial unit when the audio signal is a two-channel signal; the fourth processing subunit is connected with the serial unit through a fourth interface based on a sixth preset protocol, and is configured to output the audio signal to the serial unit when the audio signal is a multichannel signal.
In some embodiments, the display module further comprises: and the power amplification module is connected with the first processing unit and is used for amplifying the sound source data.
In order to achieve the above object, an embodiment of a second aspect of the present utility model proposes a vehicle including: an audio interface communication device for an entertainment screen as in the previous embodiments.
According to the vehicle provided by the embodiment of the utility model, the domain control module transmits the processed video signals and/or audio signals to the display module through the data channels in the video connecting line by multiplexing the data channels in the video connecting line, after the audio signals and/or the video signals are processed and output by the display module, a user can check the audio and the video through the display module, the production cost of an independent audio line is reduced by adopting the data channels of the original video connecting line, the mass production popularization is facilitated, the communication mode of the audio output interface and the domain control module configured by the entertainment screen is expanded, the quality of the audio signals and the stability of signal transmission can be greatly improved, and the experience of the user is improved.
Additional aspects and advantages of the utility model will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the utility model.
Drawings
The foregoing and/or additional aspects and advantages of the utility model will become apparent and may be better understood from the following description of embodiments taken in conjunction with the accompanying drawings in which:
FIG. 1 is a schematic diagram of an audio interface communication of an entertainment screen in accordance with the related art;
FIG. 2 is a block diagram of an audio interface communication device of an entertainment screen according to one embodiment of the utility model;
FIG. 3 is a block diagram of an audio interface communication device of an entertainment screen in accordance with a specific embodiment of the present utility model;
FIG. 4 is a block diagram of an audio interface communication device of an entertainment screen in accordance with a specific embodiment of the present utility model;
FIG. 5 is a block diagram of an audio interface communication device of an entertainment screen in accordance with a specific embodiment of the present utility model;
FIG. 6 is a block diagram of an audio interface communication device of an entertainment screen in accordance with a specific embodiment of the present utility model;
FIG. 7 is a block diagram of an audio interface communication device of an entertainment screen in accordance with a specific embodiment of the present utility model;
FIG. 8 is a block diagram of an audio interface communication device of an entertainment screen in accordance with a specific embodiment of the present utility model;
fig. 9 is a block diagram of a vehicle according to one embodiment of the utility model.
Reference numerals: audio interface communication means 10 of the entertainment screen; a domain control module 1; a vehicle-mounted entertainment unit 11; a second processing unit 12; a fourth processing subunit 121; a serial unit 13; a video connection line 2; a video signal processing channel 21; a display module 3; a deserializing unit 31; a first processing unit 32; a first processing subunit 321; a second processing subunit 322; a video display module 33; an audio interface 4; a power amplification module 34.
Detailed Description
Embodiments of the present utility model will be described in detail below, by way of example with reference to the accompanying drawings.
An audio interface communication device 10 for an entertainment screen according to an embodiment of the present utility model is illustrated below with reference to fig. 2-8.
As shown in fig. 2, an audio interface communication device 10 of an entertainment screen according to an embodiment of the present utility model includes: domain control module 1, video connection line 2, display module 3 and audio interface 4. Wherein, the liquid crystal display device comprises a liquid crystal display device,
the domain control module 1 is used for processing video signals and/or audio signals; the display module 3 is connected with the domain control module 1 through a video connection line 2, the display module 3 is used for outputting audio source data corresponding to audio signals to the audio interface 4 and/or outputting video data corresponding to video signals to the video display module 33, wherein the video connection line 2 is used for receiving the audio signals and/or video signals sent by the domain control module 1 and sending the audio signals and/or video signals to the display module 3; the audio interface 4 is connected with the display module 3, and is used for receiving audio data and providing a communication interface of the audio data.
In the embodiment, the audio interface communication device 10 of the entertainment screen multiplexes the video connection line 2, such as the FPD-link iii line, after the domain control module 1 processes the video signal and/or the audio signal, the display module 3 is connected with the domain control module 1 through the video connection line 2, the video connection line 2 receives the audio signal and/or the video signal sent by the domain control module 1, and sends the audio signal and/or the video signal to the display module 3, the display module 3 is used as a display device and an audio output device, after receiving the audio signal and/or the video signal, processes and outputs the audio signal and/or the video signal thereof, that is, outputs corresponding audio data to the audio interface 4 according to the received audio signal, and/or outputs corresponding video data to the video display module 33 according to the received video signal, so that a user can watch or listen to songs after accessing related devices, such as headphones, through the audio interface 4 is expanded, without adopting the audio connection line, the problem that the transmission performance of the audio line is affected by materials and is lost in the transmission process is avoided, and the user experience is improved.
According to the audio interface communication device 10 of the entertainment screen, the domain control module 1 transmits the processed video signals and/or audio signals to the display module 3 through the data channels in the video connecting line 2 by multiplexing the data channels in the video connecting line 2, after the audio signals and/or the video signals are processed and output by the display module 3, a user can check the audio and the video through the display module 3, the production cost of the independent audio lines is reduced by adopting the data channels of the original video connecting line 2, the mass production popularization is facilitated, the communication mode of the entertainment screen configuration audio output interface and the domain control module 1 is expanded, the quality of the audio signals and the stability of signal transmission can be greatly improved, and the experience of the user is improved.
In some embodiments, as shown in fig. 3, the video connection line 2 includes a video signal processing channel 21.
In an embodiment, when audio transmission is performed, the video signal processing channel 21 in the video connection line 2 may be multiplexed to transmit audio, so as to cancel an independent audio line, reduce production and design costs by adopting the video signal processing channel 21 of the video connection line 2, and avoid the problem that the audio transmission line is too long, resulting in large electromagnetic field, thereby reducing electromagnetic interference and improving sound playing quality.
In some embodiments, as shown in fig. 4, the display module 3 includes: a deserializing unit 31, and a first processing unit 32, wherein,
the deserializing unit 31 is connected with the domain control module 1 through the video signal processing channel 21, and is used for restoring the audio signal and/or the video signal sent by the domain control module 1 so as to correspondingly output the audio source data to the audio interface 4 and/or output the video data to the video display module 33; the first processing unit 32 is connected to the deserializing unit 31, and is configured to process the sound source data and output the processed sound source data to the audio interface 4.
In an embodiment, after the display module 3 receives the audio signal and/or the video signal sent by the domain control module 1, the deserializing unit 31 processes the received audio signal and/or the video signal, restores the audio signal and/or the video signal sent by the domain control module 1, outputs corresponding video data to the video display module 33 according to the received video signal after restoring by the deserializing unit 31, the first processing unit 32 is connected with the deserializing unit 31, processes the received audio data, outputs the processed audio data to the audio interface 4, processes and outputs the audio signal and/or the video signal by the display module 3, and can enable the received audio signal and/or the video signal to be checked by a user.
In some embodiments, as shown in fig. 5, the first processing unit 32 includes: a first processing subunit 321, or a second processing subunit 322, wherein,
the first processing subunit 321 is connected with the deserializing unit 31 through a first interface based on a first preset protocol, and is configured to output the sound source data to the audio interface 4 when the sound source data is a two-channel sound source; or the second processing subunit 322 communicates with the deserializing unit 31 through a second preset protocol, and is configured to output the sound source data to the audio interface 4 when the sound source data is a two-channel sound source.
In an embodiment, the first processing subunit 321 may be configured as a digital signal processor, the first preset protocol may be configured as an SPI (Serial Peripheral interface ) protocol, the first interface may be configured as a GPIO (General Purpose Input Output, general purpose input output interface) interface, and the digital signal processor of the first processing subunit 321 is connected to the deserializing unit 31 through the first interface GPIO interface based on the first preset protocol SPI protocol.
Or the second processing subunit 322 may be configured as a digital-to-analog converter, the second preset protocol may be set as an I2S (Integrated Interchip Sound, integrated circuit with built-in audio bus) protocol, the digital-to-analog converter of the second processing subunit 322 is connected to the deserializing unit 31 through the second preset protocol I2S protocol, and the received audio data can be output to the audio interface 4 for being checked by the user through the processing of the audio data by the first processing unit 32, where two-channel stereo audio can be simultaneously transmitted when the I2S protocol is used.
In some embodiments, as shown in fig. 5, the first processing unit 32 includes: the first processing subunit 321, where the first processing subunit 321 is connected to the deserializing unit 31 through the second interface based on a third preset protocol, and is configured to output the sound source data to the audio interface 4 when the sound source data is a multi-channel sound source.
In an embodiment, when the audio transmission needs multi-channel audio transmission, the first processing subunit 321 may be configured as a digital signal processor, the third preset protocol may be configured as an SPI protocol, the second interface may be configured as a GPIO interface, and the first processing subunit 321 digital signal processor is connected to the deserializing unit 31 through the second interface GPIO interface based on the third preset protocol SPI protocol, so that the first processing unit 32 can process the multi-channel audio data, so that the display module 3 can output multi-channel stereo audio to the audio interface 4 at the same time.
In some embodiments, as shown in fig. 6, the domain control module 1 includes: an in-vehicle entertainment unit 11 and a serial unit 13, wherein,
the in-vehicle entertainment unit 11 is for processing video signals and/or audio signals; the serial unit 13 is connected to the in-vehicle entertainment unit 11 for receiving the processed video signal and/or audio signal and transmitting the video signal and/or audio signal to the display module 3.
In an embodiment, after the in-vehicle entertainment unit 11 processes the video signal and/or the audio signal, the serial unit 13 is connected to the in-vehicle entertainment unit 11, receives the video signal and/or the audio signal processed by the in-vehicle entertainment unit 11, and sends the video signal and/or the audio signal processed by the in-vehicle entertainment unit 11 to the display module 3.
In some embodiments, as shown in fig. 6, the domain control module 1 further includes: the second processing unit 12 is connected to the vehicle entertainment unit 11, and is configured to receive the processed video signal and/or audio signal, process the video signal and/or audio signal again according to the processing requirement, and output the reprocessed video signal and/or audio signal to the serial unit 13.
In an embodiment, after the vehicle entertainment unit 11 processes the video signal and/or the audio signal, if the processed video signal and/or audio signal still cannot meet the processing requirement, the video signal and/or the audio signal is processed again by the second processing unit 12 until the processing requirement is met, and the video signal and/or the audio signal of the processing requirement after being processed again is output to the serial unit 13, so as to perform finer processing on the video signal and/or the audio signal, and improve the transmission quality of the audio signal and/or the video signal.
In some embodiments, as shown in fig. 7, the second processing unit 12 includes: a fourth processing subunit 121, wherein,
the fourth processing subunit 121 is connected to the serial unit 13 through a third interface based on a fourth preset protocol, and is configured to output an audio signal to the serial unit 13 when the audio signal is a two-channel signal; or the fourth processing subunit 121 is connected to the serial unit 13 based on a fifth preset protocol, and is configured to output an audio signal to the serial unit 13 when the audio signal is a two-channel signal; the fourth processing subunit 121 is connected to the serial unit 13 through a fourth interface based on a sixth preset protocol, and is configured to output an audio signal to the serial unit 13 when the audio signal is a multi-channel signal.
In an embodiment, the fourth processing subunit 121 may be configured as a digital signal processor, the fourth preset protocol may be configured as an SPI protocol, the third interface may be configured as a GPIO interface, and the digital signal processor of the fourth processing subunit 121 is connected to the serial unit 13 through the third interface GPIO interface based on the fourth preset protocol SPI protocol.
Or the fourth processing subunit 121 may be configured as a digital-to-analog converter, and the fifth preset protocol may be configured as an I2S protocol, where the digital-to-analog converter of the fourth processing subunit 121 is connected to the serial unit 13 through the fifth preset protocol I2S protocol, and the processing of the received audio data by the second processing unit 12 enables the processed audio data to be output to the serial unit 13, where two-channel stereo audio may be simultaneously transmitted when the I2S protocol is used.
When the audio transmission requires multi-channel transmission, the fourth processing subunit 121 may be configured as a digital signal processor, the sixth preset protocol may be configured as an SPI protocol, the fourth interface may be configured as a GPIO interface, and the fourth processing subunit 121 digital signal processor is connected to the serial unit 13 through the fourth interface GPIO interface based on the sixth preset protocol SPI protocol, so that the second processing unit 12 can process the multi-channel audio data, so that the domain control module 1 may output multi-channel stereo audio to the serial unit 13 at the same time.
In some embodiments, as shown in fig. 8, the display module 3 further includes: the power amplification module 34, the power amplification module 34 is connected to the first processing unit 32, and is used for amplifying the audio source data.
In the embodiment, the power amplification module 34 is connected to the first processing unit 32, and after the first processing unit 32 processes the received audio source data, the power amplification module 34 amplifies the audio data, so that the audio felt by the user through the external device of the audio interface 4 can reach a good state, and the user experience is better improved.
According to the audio interface communication device 10 of the entertainment screen, the domain control module 1 transmits the processed video signals and/or audio signals to the display module 3 through the data channels in the video connecting line 2 by multiplexing the data channels in the video connecting line 2, after the audio signals and/or the video signals are processed and output by the display module 3, a user can check the audio and the video through the display module 3, the production cost of the independent audio lines is reduced by adopting the data channels of the original video connecting line 2, the mass production popularization is facilitated, the communication mode of the entertainment screen configuration audio output interface and the domain control module 1 is expanded, the quality of the audio signals and the stability of signal transmission can be greatly improved, and the experience of the user is improved.
The following describes a vehicle 2 of an embodiment of the utility model with reference to fig. 9.
As shown in fig. 9, a vehicle of an embodiment of the present utility model includes an audio interface communication device 10 of an entertainment screen as in the above-described embodiment.
According to the vehicle 2 provided by the embodiment of the utility model, the domain control module 1 transmits the processed video signals and/or audio signals to the display module 3 through the data channels in the video connecting line 2 by multiplexing the data channels in the video connecting line 2, after the audio signals and/or the video signals are processed and output by the display module 3, a user can check the audio and the video through the display module 3, the production cost of an independent audio line is reduced by adopting the data channels of the original video connecting line 2, the mass production popularization is facilitated, the communication mode of the entertainment screen configuration audio output interface and the domain control module 1 is expanded, the quality of the audio signals and the stability of signal transmission can be greatly improved, and the experience of the user is improved.
In the description of the present specification, reference to the terms "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples.
While embodiments of the present utility model have been shown and described, it will be understood by those of ordinary skill in the art that: many changes, modifications, substitutions and variations may be made to the embodiments without departing from the spirit and principles of the utility model, the scope of which is defined by the claims and their equivalents.
Claims (10)
1. An audio interface communication device for an entertainment screen, comprising:
a domain control module for processing the video signal and/or the audio signal;
the display module is connected with the domain control module through a video connecting wire and is used for outputting audio source data corresponding to the audio signals to an audio interface and/or outputting video data corresponding to the video signals to a video display module, wherein the video connecting wire is used for receiving the audio signals and/or the video signals sent by the domain control module and sending the audio signals and/or the video signals to the display module;
the audio interface is connected with the display module and used for receiving the sound source data and providing a communication interface of the sound source data.
2. The entertainment screen audio interface communication device of claim 1, wherein the video connection line includes a video signal processing channel.
3. The entertainment screen audio interface communication device of claim 2, wherein the display module comprises:
the deserializing unit is connected with the domain control module through the video signal processing channel and is used for restoring the audio signal and/or the video signal sent by the domain control module so as to correspondingly output the audio source data to the audio interface and/or output the video data to the video display module;
the first processing unit is connected with the deserializing unit and is used for processing the sound source data and outputting the processed sound source data to the audio interface.
4. An entertainment screen audio interface communication device as set forth in claim 3, wherein said first processing unit includes:
the first processing subunit is connected with the deserializing unit through a first interface based on a first preset protocol and is used for outputting the sound source data to the audio interface when the sound source data are two-channel sound sources; or (b)
The second processing subunit is in communication with the deserializing unit through a second preset protocol and is used for outputting the sound source data to the audio interface when the sound source data are two-channel sound sources.
5. An entertainment screen audio interface communication device as set forth in claim 3, wherein said first processing unit includes:
the first processing subunit is connected with the deserializing unit through a second interface based on a third preset protocol and is used for outputting the sound source data to the audio interface when the sound source data are multi-channel sound sources.
6. The entertainment screen audio interface communication device of claim 1, wherein the domain control module comprises:
the vehicle-mounted entertainment unit is used for processing the video signal and/or the audio signal;
and the serial unit is connected with the vehicle-mounted entertainment unit and is used for receiving the processed video signals and/or audio signals and sending the video signals and/or audio signals to the display module.
7. The entertainment screen audio interface communication device of claim 6, wherein the domain control module further comprises:
the second processing unit is connected with the vehicle-mounted entertainment unit and is used for receiving the processed video signals and/or audio signals, processing the video signals and/or audio signals again according to processing requirements and outputting the processed video signals and/or audio signals to the serial unit.
8. The entertainment screen audio interface communication device of claim 7, wherein the second processing unit includes:
the fourth processing subunit is connected with the serial unit through a third interface based on a fourth preset protocol and is used for outputting the audio signal to the serial unit when the audio signal is a two-channel signal; or (b)
The fourth processing subunit is connected with the serial unit based on a fifth preset protocol, and is used for outputting the audio signal to the serial unit when the audio signal is a two-channel signal;
the fourth processing subunit is connected with the serial unit through a fourth interface based on a sixth preset protocol, and is configured to output the audio signal to the serial unit when the audio signal is a multichannel signal.
9. An entertainment screen audio interface communication device as set forth in claim 3, wherein said display module further comprises:
and the power amplification module is connected with the first processing unit and is used for amplifying the sound source data.
10. A vehicle, characterized by comprising: an audio interface communication device for an entertainment screen according to any of claims 1-9.
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