CN213522342U - Vehicle-mounted multimedia playing control chip - Google Patents
Vehicle-mounted multimedia playing control chip Download PDFInfo
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- CN213522342U CN213522342U CN202023047687.4U CN202023047687U CN213522342U CN 213522342 U CN213522342 U CN 213522342U CN 202023047687 U CN202023047687 U CN 202023047687U CN 213522342 U CN213522342 U CN 213522342U
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Abstract
The utility model discloses a vehicle-mounted multimedia playing control chip, which comprises a multimedia playing control system and an audio power amplifier unit, wherein the multimedia playing control system comprises a control module, a USB transmission port, a Bluetooth module, a data storage module and a touch screen, and the audio power amplifier unit comprises an audio processor, an audio decoder, a sound equalizer, an audio amplifier and an audio playing module; the utility model discloses a sound equalizer corrects the audio signal decay that arouses because of the frequency difference, then can obtain the highest efficiency under keeping the lowest distortion condition through audio amplifier, play audio information through audio playback module at last, process audio processor like this in proper order, audio decoder, sound equalizer and audio amplifier handle audio information, not only can avoid the audio information distortion, and the decay of audio information in transmission process has been reduced, make audio information can high-quality output.
Description
Technical Field
The utility model relates to an on-vehicle multimedia technology field specifically is an on-vehicle multimedia playing control chip.
Background
In recent years, with the vigorous development of the automobile industry and the progress of electronic technology, the vehicle-mounted multimedia player has been rapidly developed and widely applied; especially on the cars with more passengers, such as passenger cars, tourist cars, buses, company delivery cars, etc., the multimedia player becomes a necessary device in the carriage; the vehicle-mounted entertainment vehicle not only enriches the in-vehicle entertainment culture life and relieves the fatigue of people on trips, but also can issue useful information, such as social public welfare propaganda, and can be used for advertising of products and the like.
However, the existing vehicle-mounted multimedia player has the following defects when in use:
when the existing vehicle-mounted multimedia player is used for playing the audio information, the phenomenon of attenuation is easy to occur in the transmission process of the audio information, and the output quality of the audio information is reduced.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide an on-vehicle multimedia broadcast control chip to solve the problem that proposes among the above-mentioned background art.
In order to achieve the above object, the utility model provides a following technical scheme: a vehicle-mounted multimedia playing control chip comprises a multimedia playing control system and an audio power amplifier unit, the multimedia playing control system comprises a control module, a USB transmission port, a Bluetooth module, a data storage module and a touch screen, the control module is respectively and electrically connected with the USB transmission port, the Bluetooth module, the data storage module, the touch screen and the audio power amplifier unit, the audio power amplifier unit comprises an audio processor, an audio decoder, a sound equalizer, an audio amplifier and an audio playing module, the signal output end of the audio processor is electrically connected with the signal input end of the audio decoder, the signal output end of the audio decoder is electrically connected with the signal input end of the sound equalizer, the signal output end of the sound equalizer is electrically connected with the signal input end of the audio amplifier, the signal output end of the audio amplifier is electrically connected with the signal input end of the audio playing module.
The multimedia playing control system further comprises a power supply module, the control module is electrically connected with the power supply module, and the power supply module adopts a vehicle-mounted storage battery.
The control module is electrically connected with the audio power amplification unit through the audio processor.
The audio playing module further comprises a loudspeaker, and the loudspeaker is used for playing audio information.
Compared with the prior art, the beneficial effects of the utility model are that:
the utility model controls the audio power amplifying unit to work through the control module, plays audio information through the audio power amplifying unit, and firstly carries out noise elimination, matrix sound mixing and echo elimination processing on audio signals received by the audio power amplifying unit through the audio processor, then converts read digital audio information into analog audio signals to be output through the audio decoder, then corrects the audio signal attenuation caused by different frequencies through the sound equalizer, then can obtain the highest efficiency under the condition of keeping the lowest distortion through the audio amplifier, and finally plays the audio information through the audio playing module, thus processing the audio information through the audio processor, the audio decoder, the sound equalizer and the audio amplifier in sequence, not only avoiding the audio information distortion, but also reducing the attenuation of the audio information in the transmission process, and leading the audio information to be output with high quality, the hearing enjoyment of the user is improved.
Drawings
Fig. 1 is a schematic structural diagram of a multimedia playing control system of the present invention;
fig. 2 is the schematic diagram of the structure of the audio power amplifier unit of the present invention.
In the figure: 10. a multimedia play control system; 11. a control module; 12. a power supply module; 13. a USB transmission port; 14. a Bluetooth module; 15. a data storage module; 16. a touch screen; 20. an audio power amplifier unit; 21. an audio processor; 22. an audio decoder; 23. a sound equalizer; 24. an audio amplifier; 25. an audio playing module; 26. a loudspeaker.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1-2, the present invention provides a technical solution: a vehicle-mounted multimedia playing control chip comprises a multimedia playing control system 10 and an audio power amplifier unit 20.
The multimedia playing control system 10 includes a control module 11, a power supply module 12, a USB transmission port 13, a bluetooth module 14, a data storage module 15 and a touch screen 16, wherein the control module 11 is electrically connected to the power supply module 12, the USB transmission port 13, the bluetooth module 14, the data storage module 15, the touch screen 16 and the audio power amplifier unit 20 respectively.
The control module 11 may be a circuit including at least one processor, a circuit including at least one single chip, or a combination of multiple circuits or chips, as long as the corresponding functions can be realized. It is understood that, for those skilled in the art, the control module 11 may also implement the corresponding functions in a pure hardware manner for a common circuit composed of an amplifier, a comparator, a triode, a MOS transistor, and the like.
The power supply module 12 adopts a vehicle-mounted storage battery, and provides power for the multimedia playing control system 10 through the power supply module 12.
The multimedia playing control system 10 is electrically connected to an external audio storage device, which may be a mobile phone or a USB disk, by connecting the USB transmission port 13 to an external USB port.
Wherein, the bluetooth module 14 can connect the mobile phone with the multimedia playing control system 10 via bluetooth, so as to obtain the audio information stored in the mobile phone.
The data storage module 15 is used for storing the audio information that needs to be played by the multimedia playing control system 10.
The data storage module 15 may be an erasable programmable read-only memory, and may also be a random access memory, and the data storage module 15 may read or write various data information and/or program codes.
The touch screen 16 is an inductive liquid crystal display device capable of receiving input signals such as a touch, and when a graphical button on the screen is touched, the tactile feedback system on the screen can drive various connecting devices according to a pre-programmed program, so that a mechanical button panel can be replaced, a vivid video effect can be produced by the liquid crystal display picture, and the control module 11 is controlled to work through the touch screen 16.
Wherein, the audio power amplifier unit 20 includes an audio processor 21, an audio decoder 22, a sound equalizer 23, an audio amplifier 24 and an audio playing module 25, the signal output end of the audio processor 21 is electrically connected to the signal input end of the audio decoder 22, the signal output end of the audio decoder 22 is electrically connected to the signal input end of the sound equalizer 23, the signal output end of the sound equalizer 23 is electrically connected to the signal input end of the audio amplifier 24, the signal output end of the audio amplifier 24 is electrically connected to the signal input end of the audio playing module 25, and the control module 11 is electrically connected to the audio power amplifier unit 20 through the audio processor 21.
The audio playing module 25 further includes a speaker 26, and the speaker 26 is used for playing audio information.
The working principle is as follows: when in use, the mobile audio storage device is electrically connected with the multimedia playing control system 10 through the USB transmission port 13 and the bluetooth module 14, the data storage module 15 keeps and stores the audio information to be played by the multimedia playing control system 10, the control module 11 controls the audio power amplification unit 20 to work, the audio information is played through the audio power amplification unit 20, the audio processor 21 performs noise elimination, matrix mixing and echo elimination on the audio signal received by the audio power amplification unit 20, the audio decoder 22 converts the read digital audio information into analog audio signal for output, the sound equalizer 23 corrects the audio signal attenuation caused by different frequencies, the audio amplifier 24 can obtain the highest efficiency under the condition of keeping the lowest distortion, and the audio playing module 25 plays the audio information, the audio information is processed by the audio processor 21, the audio decoder 22, the sound equalizer 23 and the audio amplifier 24 in sequence, so that the audio information can be prevented from being distorted, the attenuation of the audio information in the transmission process is reduced, the audio information can be output with high quality, and the hearing enjoyment of a user is improved.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (4)
1. The utility model provides a vehicle-mounted multimedia playing control chip, includes multimedia playing control system (10) and audio power amplifier unit (20), its characterized in that: multimedia playing control system (10) includes control module (11), USB transmission port (13), bluetooth module (14), data storage module (15) and touch-sensitive screen (16), control module (11) respectively with USB transmission port (13), bluetooth module (14), data storage module (15), touch-sensitive screen (16) and audio power amplifier unit (20) electric connection, audio power amplifier unit (20) include audio processor (21), audio decoder (22), sound equalizer (23), audio amplifier (24) and audio playing module (25), audio processor (21) signal output part with electric connection between audio decoder (22) signal input part, audio decoder (22) signal output part with electric connection between sound equalizer (23) signal input part, sound equalizer (23) signal output part with between audio amplifier (24) signal input part electricity And the signal output end of the audio amplifier (24) is electrically connected with the signal input end of the audio playing module (25).
2. The vehicle-mounted multimedia playing control chip according to claim 1, wherein: the multimedia playing control system (10) further comprises a power supply module (12), the control module (11) is electrically connected with the power supply module (12), and the power supply module (12) adopts a vehicle-mounted storage battery.
3. The vehicle-mounted multimedia playing control chip according to claim 2, wherein: the control module (11) is electrically connected with the audio power amplification unit (20) through the audio processor (21).
4. The vehicle-mounted multimedia playing control chip according to claim 3, wherein: the audio playing module (25) further comprises a loudspeaker (26), and the loudspeaker (26) is used for playing audio information.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023047687.4U CN213522342U (en) | 2020-12-17 | 2020-12-17 | Vehicle-mounted multimedia playing control chip |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023047687.4U CN213522342U (en) | 2020-12-17 | 2020-12-17 | Vehicle-mounted multimedia playing control chip |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213522342U true CN213522342U (en) | 2021-06-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202023047687.4U Active CN213522342U (en) | 2020-12-17 | 2020-12-17 | Vehicle-mounted multimedia playing control chip |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213522342U (en) |
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- 2020-12-17 CN CN202023047687.4U patent/CN213522342U/en active Active
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