CN216957423U - Vehicle-mounted KTV device - Google Patents
Vehicle-mounted KTV device Download PDFInfo
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- CN216957423U CN216957423U CN202220329820.5U CN202220329820U CN216957423U CN 216957423 U CN216957423 U CN 216957423U CN 202220329820 U CN202220329820 U CN 202220329820U CN 216957423 U CN216957423 U CN 216957423U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
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Abstract
The utility model discloses a vehicle-mounted KTV device, which comprises a multimedia host CPU, a microphone, an external power amplifier module, a vehicle-mounted loudspeaker, an audio decoding module and an audio transmission coding module, wherein the microphone is used for collecting a human voice signal, and the output end of the microphone is connected with an audio identification module; the output end of the audio identification module is connected with a multimedia host CPU (Central processing Unit), and the multimedia host CPU is respectively connected with an audio decoding module and an audio transmission coding module and is used for controlling the operation of the audio decoding module and the audio transmission coding module; the audio decoding module carries out audio decoding on input music and sends the decoded audio to the audio transmission coding module, the output end of the audio transmission coding module is connected to the external power amplifier module, and the output end of the external power amplifier module is connected with the vehicle-mounted loudspeaker. The vehicle audio-visual entertainment system is simple in structure and convenient to implement, can realize the KTV function on the vehicle, improves user experience, and expands the audio-visual entertainment function of the vehicle.
Description
Technical Field
The utility model relates to the field of vehicle audio and video entertainment control, in particular to a vehicle-mounted KTV device.
Background
Along with the development of automobile technology, automobile sound system more and more tends to be intelligent, and intelligent passenger cabin uses more and more, and sound system's attention degree is also higher and more, and the number that whole car disposes the speaker is also more and more. The independent sound system can not completely meet the requirements of users, and the vehicle-mounted sound system for playing music independently can not meet the requirements of users for the video entertainment requirements, so that the video entertainment system of the vehicle needs to be upgraded and improved.
SUMMERY OF THE UTILITY MODEL
The utility model aims to overcome the defects in the prior art, and provides a vehicle-mounted KTV device, which is used for realizing the vehicle-mounted KTV function of a vehicle based on a vehicle-mounted audio and video entertainment host and improving the user experience.
In order to achieve the purpose, the utility model adopts the technical scheme that: a vehicle-mounted KTV device comprises a multimedia host CPU, a microphone, an external power amplifier module, a vehicle-mounted loudspeaker, an audio decoding module and an audio transmission coding module, wherein the microphone is used for collecting human voice signals, and the output end of the microphone is connected with an audio identification module; the output end of the audio identification module is connected with a multimedia host CPU, and the multimedia host CPU is respectively connected with an audio decoding module and an audio transmission coding module and is used for controlling the work of the audio decoding module and the audio transmission coding module; the audio decoding module carries out audio decoding to input music and sends the audio after decoding to audio transmission coding module, audio transmission coding module's output is connected to external power amplifier module, external power amplifier module's output is connected with vehicle mounted loudspeaker.
The audio decoding module is connected with a USB interface, and the USB interface is used for connecting an external hardware storage device.
The multimedia host CPU is connected with the Bluetooth module, and the Bluetooth module is connected with the external Bluetooth MIC in a Bluetooth communication mode.
The external power amplifier module comprises an audio transmission decoding module, a DSP and a power amplification module, wherein the audio transmission decoding module is used for receiving and decoding an output signal of the audio transmission coding module, the output end of the audio transmission decoding module is connected with the DSP, the output end of the DSP is connected with the power amplification module, and the DSP drives the vehicle-mounted loudspeaker to make sound through the power amplification module.
The audio transmission encoding module is an A2B encoding module, and the audio transmission decoding module is an A2B decoding module.
The input end of the multimedia host CPU is connected with the battery electric quantity acquisition module, and the multimedia host CPU is connected with the vehicle-mounted display screen and used for controlling the vehicle-mounted display screen to display the battery electric quantity.
The utility model has the advantages that: the structure is simple, the realization is convenient, the KTV function on the vehicle can be realized, the user experience is improved, and the audio and video entertainment function of the vehicle is expanded; can real time monitoring battery power, in time remind the electric quantity under the KTV function, avoid the KTV function to surpass the scope to the consumption of battery power, guaranteed that the vehicle electric quantity satisfies the user's needs.
Drawings
The contents of the expressions in the various figures of the present specification and the labels in the figures are briefly described as follows:
fig. 1 is a schematic diagram of a vehicle-mounted KTV device of the present invention.
Detailed Description
The following description of preferred embodiments of the utility model will be made in further detail with reference to the accompanying drawings.
This application mainly realizes providing the hardware basis for the KTV function based on-vehicle hardware, expands whole car audio-visual entertainment function, makes it possess the KTV function, and concrete connection relation and scheme are as follows:
as shown in fig. 1, a vehicle-mounted KTV device includes a multimedia host CPU, and further includes a microphone, an external power amplifier module, a vehicle-mounted speaker, an audio decoding module, and an audio transmission coding module, where the microphone is used to collect a human voice signal, and an output end of the microphone is connected to an audio recognition module; the output end of the audio identification module is connected with a multimedia host CPU (Central processing Unit), and the multimedia host CPU is respectively connected with an audio decoding module and an audio transmission coding module and is used for controlling the operation of the audio decoding module and the audio transmission coding module; the audio decoding module carries out audio decoding to input music and sends the audio after decoding to audio transmission coding module, audio transmission coding module's output is connected to external power amplifier module, external power amplifier module's output is connected with vehicle mounted loudspeaker.
The audio decoding module is connected with a USB interface, and the USB interface is used for connecting an external hardware memory device.
The multimedia host CPU is connected with the Bluetooth module, and the Bluetooth module is connected with the external Bluetooth MIC in a Bluetooth communication mode.
In the application, the external power amplifier module comprises an audio transmission decoding module, a DSP and a power amplification module, wherein the audio transmission decoding module is used for receiving an output signal of the audio transmission encoding module and decoding the output signal, the output end of the audio transmission decoding module is connected with the DSP, the output end of the DSP is connected with the power amplification module, and the DSP drives the vehicle-mounted loudspeaker to make sound through the power amplification module.
Preferably, the audio transmission encoding module is an A2B encoding module, and the audio transmission decoding module is an A2B decoding module.
The working principle comprises: the microphone 1 and the microphone 2 mainly play a role in picking up sound, are used for recording voice signals and transmitting the signals to the voice recognition module, and the voice recognition module is used for voice recognition and recording and reducing noise of audio signals input from the microphones and can be realized by adopting a professional voice chip; the multimedia host CPU is a core controller, can be shared with the CPU of the vehicle-mounted multimedia host for processing various services and the like, and is also used for controlling the work of the audio decoding module and the A2B encoding module; the USB interface is used for externally connecting music storage equipment, such as a U disk, a hard disk and the like, the audio decoding module is used for carrying out audio decoding on music transmitted by the externally connecting music storage equipment and then sending the music into the A2B encoding module together with sound signals for encoding, the encoded data are sent into the A2B decoding module in the external power amplification module through an A2B bus, the A2B decoding module decodes the audio signals and sends the audio signals into a DSP, and the DSP chip drives a vehicle-mounted loudspeaker to emit sound through three power amplification modules of P.AMP1-3 after carrying out sound effect processing and reverberation processing on the audio signals, so that the KTV function is realized. The speakers are plural, including but not limited to tweeters, woofers, left and right surround speakers, subwoofers, and the like.
In a preferred embodiment, the hardware provides a working basis for the kTV function, but the KTV function is a relatively power-consuming entertainment function, and needs to monitor the charge of the vehicle-mounted storage battery in time, and needs to give a warning or protection action when the charge of the battery is lower than a set value. Taking the multimedia host for control as an example, the input end of a multimedia host CPU is connected with a battery electric quantity acquisition module, and the multimedia host CPU is connected with a vehicle-mounted display screen and is used for controlling the vehicle-mounted display screen to display the electric quantity of a battery and displaying the electric quantity in real time, so that a user can conveniently judge whether to continue to perform a KTV function according to electric quantity display information and give a decision right to the user; or when the collected electric quantity is lower than a set value, the CPU gives an alarm prompt through a display or an alarm and then controls the vehicle storage battery to be disconnected from power supply, and the disconnection of the power supply can be controlled by controlling the storage battery to supply power to an external power amplifier and a loudspeaker through a relay.
As shown in fig. 1, the present invention is composed of microphones 1 and 2, hu (head unit), USB interface, external power amplifier and speaker. Wherein the sound host computer at least comprises: the system comprises a voice recognition module, a Bluetooth module, a CPU, an audio decoding module and an A2B encoding module; the external power amplifier at least comprises: A2B decoding module, DSP module, P.AMP1, P.AMP2, P.AMP3.
Wherein: the microphone is used for picking up sound, and is used for voice recognition and audio input during K sings; the voice recognition module is used for voice recognition and recording and denoising of an audio signal input from the microphone; the audio decoding module is used for decoding sound sources, including USB music, video sound sources and the like; the CPU module is used for processing various services and the like; the A2B encoding module is used for encoding the audio signal of the HU and transmitting the audio signal to the external power amplifier through A2B; the A2B decoding module is used for decoding the audio signal transmitted by the HU; the DSP module performs sound effect processing and reverberation processing on the audio signal; and the P.AMP1-3 module is a power amplification module, amplifies the audio signal processed by the DSP and outputs the audio signal to a loudspeaker of the whole vehicle.
A2B: an Automotive Audio BUS, a vehicle Audio transmission mode developed by ADI corporation of america;
and (4) DSP: digital Single Process, Digital audio processing.
In this embodiment, A2B is used to transmit audio signals, A2B is a common digital audio transmission protocol, and its working logic is as follows:
1A 2B Transmission channel definition:
TDM0 is an audio signal transmitted by the HU to the external power amplifier, and TDM1 is a reference audio signal fed back to the HU by the external power amplifier; in the traditional A2B transmission, TDM0 does not define audio signals of mic1 and mic2, and only transmits signals such as entertainment navigation and voice to an external power amplifier, so that the function of karaoke cannot be realized. According to the utility model, only under the current hardware condition, a mic audio signal is added to an external power amplifier, a DSP of the external power amplifier integrates an algorithm of a karaoke song, and a karaoke song function is realized through the external power amplifier. When the user is in the car, the k songs in the car are realized through the recording of the mic1 and the mic 2. When the user is outside the car, can carry out k song through the USB interface, external bluetooth mic. At the moment, the music instrument is in a camping mode, namely, the sound output after the k sings is a camping loudspeaker so as to realize the sound emission from the outside of the automobile. Different user usage scenarios are added.
It is clear that the specific implementation of the utility model is not restricted to the above-described embodiments, but that various insubstantial modifications of the inventive process concept and technical solutions are within the scope of protection of the utility model.
Claims (6)
1. The utility model provides an on-vehicle KTV device, includes multimedia host CPU, its characterized in that: the device also comprises a microphone, an external power amplifier module, a vehicle-mounted loudspeaker, an audio decoding module and an audio transmission coding module, wherein the microphone is used for collecting human voice signals, and the output end of the microphone is connected with the audio identification module; the output end of the audio identification module is connected with a multimedia host CPU, and the multimedia host CPU is respectively connected with an audio decoding module and an audio transmission coding module and is used for controlling the work of the audio decoding module and the audio transmission coding module; the audio decoding module carries out audio decoding to input music and sends the audio after decoding to audio transmission coding module, audio transmission coding module's output is connected to external power amplifier module, external power amplifier module's output is connected with vehicle mounted loudspeaker.
2. The on-board KTV device of claim 1, wherein: the audio decoding module is connected with a USB interface, and the USB interface is used for connecting an external hardware storage device.
3. The on-board KTV device of claim 1, wherein: the multimedia host CPU is connected with the Bluetooth module, and the Bluetooth module is connected with the external Bluetooth MIC in a Bluetooth communication mode.
4. The on-board KTV device of claim 1, wherein: the external power amplifier module comprises an audio transmission decoding module, a DSP and a power amplification module, wherein the audio transmission decoding module is used for receiving and decoding an output signal of the audio transmission coding module, the output end of the audio transmission decoding module is connected with the DSP, the output end of the DSP is connected with the power amplification module, and the DSP drives the vehicle-mounted loudspeaker to make sound through the power amplification module.
5. The on-board KTV device of claim 4, wherein: the audio transmission encoding module is an A2B encoding module, and the audio transmission decoding module is an A2B decoding module.
6. The on-board KTV device of claim 1, wherein: the input end of the multimedia host CPU is connected with the battery electric quantity acquisition module, and the multimedia host CPU is connected with the vehicle-mounted display screen and used for controlling the vehicle-mounted display screen to display the battery electric quantity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220329820.5U CN216957423U (en) | 2022-02-18 | 2022-02-18 | Vehicle-mounted KTV device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220329820.5U CN216957423U (en) | 2022-02-18 | 2022-02-18 | Vehicle-mounted KTV device |
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| Publication Number | Publication Date |
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| CN216957423U true CN216957423U (en) | 2022-07-12 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202220329820.5U Active CN216957423U (en) | 2022-02-18 | 2022-02-18 | Vehicle-mounted KTV device |
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| CN (1) | CN216957423U (en) |
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- 2022-02-18 CN CN202220329820.5U patent/CN216957423U/en active Active
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