Vehicle-mounted audio karaoke control device and system

Abstract

The utility model relates to the technical field of automobile sound equipment, in particular to a vehicle-mounted sound equipment karaoke control device and system, and the device comprises a wireless microphone, a power amplifier module, and an audio output module, a display output module, an external input module, a power supply module and an anti-howling module which are connected with the power amplifier module, the anti-howling module comprises a data communication unit, a data processing unit and a power supply unit. The power supply unit is connected with the data communication unit and the data processing unit. The data communication unit comprises a wireless communication subunit and a wired communication subunit, the anti-howling module is connected with the wireless microphone through the wireless communication subunit, and the anti-howling module is connected with the power amplifier module through the wireless communication subunit or the wired communication subunit; according to the utility model, the karaoke is combined with the automobile in a cross-boundary manner, so that the entertainment experience of automobile travel is increased, and great convenience is brought to users.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile audio, in particular to a car audio karaoke control device and system. Background Art

[0002] At present, most car audio systems in my country lack karaoke equipment, and generally only have conventional music playback or navigation functions. When the car is driven for a long time, the people in the back seat are bored or lack interest. If people want to enjoy the fun of karaoke, they are limited by the conditions of hardware facilities and basically go to KTV to do it. However, this method not only wastes time, but also requires a certain amount of money, which is not very convenient for users. It can be seen that how to solve the problem of lack of car karaoke equipment in existing vehicles and poor user experience has become a technical problem that technicians in this field need to solve urgently. Utility Model Content

[0003] The utility model provides a vehicle-mounted audio karaoke control device and system, so as to solve the technical problems that the existing vehicles lack vehicle-mounted karaoke equipment and the user experience is poor.

[0004] In order to solve the above technical problems, the first aspect of the utility model provides a car audio karaoke control device, the device includes a wireless microphone, a power amplifier module, and an audio output module, a display output module, an external input module, a power module and an anti-howling module connected to the power amplifier module;

[0005] The anti-howling module includes a data communication unit, a data processing unit and a power supply unit, and the power supply unit is connected to the data communication unit and the data processing unit respectively;

[0006] The data communication unit includes a wireless communication subunit and a wired communication subunit, the anti-howling module is connected to the wireless microphone through the wireless communication subunit, and the anti-howling module is connected to the power amplifier module through the wireless communication subunit or the wired communication subunit.

[0007] Furthermore, the power amplifier module includes a codec unit, a frequency modulation unit and several interfaces;

[0008] The codec unit is connected to the frequency modulation unit, and the audio output module, the display output module, the external input module and the power supply module are respectively connected to the power amplifier module through the interface.

[0009] Furthermore, the power amplifier module also includes a Bluetooth communication unit, and the interface includes a MIC communication interface;

[0010] The codec unit is connected to the wireless communication subunit via the Bluetooth communication unit, or the codec unit is connected to the wired communication subunit via the MIC communication interface.

[0011] Furthermore, the external input module includes a radio input unit and a playback input unit, the radio input unit includes a DAB digital radio subunit and a band radio subunit, and the playback input unit includes an SD playback input subunit and a USB playback input subunit.

[0012] Furthermore, the external input module further includes an AUX external input unit, and the interface further includes an AUX input interface;

[0013] The encoding and decoding unit is connected to the AUX external input unit through the AUX input interface.

[0014] Further, the audio output module includes a first audio output unit, an audio amplifier unit and a second audio output unit;

[0015] The first audio output unit is connected to the codec unit through the interface, one end of the audio amplifier unit is connected to the second audio output unit, and the other end of the audio amplifier unit is connected to the codec unit through the interface.

[0016] Further, the display output module includes a display driving unit and an LCD display screen;

[0017] One end of the display driving unit is connected to the LCD display screen, and the other end of the display driving unit is connected to the codec unit through the interface.

[0018] Further, the power module includes a 12V DC power supply, a voltage stabilizing unit, a key detection input unit and a DC voltage input unit;

[0019] The 12V DC power supply is connected to the voltage stabilizing unit and the DC voltage input unit respectively, and the key detection input unit and the DC voltage input unit are connected to the encoding and decoding unit respectively through the interface.

[0020] Furthermore, the power module also includes an ignition lock switch and a USB fast charging unit;

[0021] One end of the ignition lock switch is connected to the 12V DC power supply, the other end of the ignition lock switch is connected to the key detection input unit, one end of the USB fast charging unit is connected to the voltage stabilizing unit, and the other end of the USB fast charging unit is connected to the power supply unit.

[0022] The second aspect of the utility model provides a vehicle-mounted audio karaoke control system, comprising the vehicle-mounted audio karaoke control device as described in the first aspect, and a data terminal connected to the device, wherein the data terminal comprises a PC host and a smart phone.

[0023] Compared with the prior art, the embodiment of the utility model has the following advantages:

[0024] The utility model integrates a car-mounted karaoke control device in the car, so that the user can sing in the car with a wireless microphone, which is convenient to move, improves the sense of technology in using the car, and enhances the user's experience; the cross-border combination of karaoke and automobile increases the entertainment experience of car travel, and at the same time makes the car a mobile singing room, allowing users to sing whenever they want and turn on the karaoke mode anytime and anywhere, which greatly facilitates the users; it not only prevents howling and has high sound quality clarity, but also adapts to the adjustment and singing of mobile phone APP, and supports multiple audio formats and Bluetooth functions. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is a block diagram of a car audio karaoke control device provided by an embodiment of the utility model;

[0026] Figure 2 It is a structural schematic diagram of a power amplifier module 1 provided in an embodiment of the utility model;

[0027] Figure 3 It is a structural schematic diagram of the external input module 4 provided in an embodiment of the utility model;

[0028] Figure 4 It is a structural diagram of the audio output module 5 provided in an embodiment of the utility model;

[0029] Figure 5 It is a structural diagram of the display output module 6 provided in an embodiment of the utility model;

[0030] Figure 6 It is a schematic diagram of the structure of the power module 7 provided in the embodiment of the utility model;

[0031] Figure 7 The utility model provides a car audio karaoke control system block diagram. DETAILED DESCRIPTION

[0032] The following is a detailed explanation of the implementation mode of the present invention in conjunction with the accompanying drawings. The embodiments are provided for illustrative purposes only and cannot be understood as limitations on the present invention. The accompanying drawings are provided for reference and illustration only and do not constitute limitations on the scope of patent protection of the present invention, because many changes can be made to the present invention without departing from the spirit and scope of the present invention.

[0033] In the description of the present invention, it should be understood that the terms "upper", "lower", "left", "right", "top", "middle", "bottom", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0034] In the description of this application, the terms "first", "second", "third", etc. are used for descriptive purposes only and are not to be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first", "second", "third", etc. may explicitly or implicitly include one or more of the feature. In the description of this application, unless otherwise specified, "plurality" means two or more.

[0035] In the description of the present application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be a connection between the two elements. The terms "vertical", "horizontal", "left", "right", "upper", "lower" and similar expressions used in this article are only for illustrative purposes, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. The term "and / or" used in this article includes any and all combinations of one or more related listed items. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0036] In the description of this application, it should be noted that, unless otherwise defined, all technical and scientific terms used in this utility model have the same meanings as those commonly understood by technicians in the technical field of this invention. The terms used in the specification of this utility model are only for the purpose of describing specific embodiments and are not intended to limit this utility model. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood by specific circumstances.

[0037] refer to Figure 1 The first aspect of the utility model provides a car audio karaoke control device, such as Figure 1 As shown, the device includes a wireless microphone 3, a power amplifier module 1, and an audio output module 5 connected to the power amplifier module 1, a display output module 6, an external input module 4, a power module 7 and an anti-howling module 2;

[0038] The anti-howling module 2 includes a data communication unit 21, a data processing unit 22 and a power supply unit 23, and the power supply unit 23 is connected to the data communication unit 21 and the data processing unit 22 respectively;

[0039] The data communication unit 21 includes a wireless communication subunit 211 and a wired communication subunit 212 . The anti-howling module 2 is connected to the wireless microphone 3 via the wireless communication subunit 211 . The anti-howling module 2 is connected to the power amplifier module 1 via the wireless communication subunit 211 or the wired communication subunit 212 .

[0040] from Figure 1 It can be seen that in this application, the audio data collected by the wireless microphone 3 is processed by the anti-howling module 2 or the audio data input from the external input module 4, and is input to the power amplifier module 1 for further processing, such as noise reduction, frequency modulation, encoding and decoding, DSP, etc., and output from the display output module 6 and / or the audio output module 5.

[0041] Among them, the wireless microphone 3 is a wireless Bluetooth microphone, which is mainly used to obtain the user's audio data. The present application adopts a wireless microphone 3 with Bluetooth technology, so that the user can move conveniently when singing karaoke; the data processing unit 22 is mainly used to reduce noise and filter out redundant signals for the audio data received by the lock. It can be a chip with anti-howling function, such as ES56031 or PH56031, etc., or it can be a processor that can realize the anti-howling function through software algorithms. Software algorithms such as frequency shifting technology, notch technology, adaptive feedback suppression algorithm, etc. are not specifically limited here. The present application sets an anti-howling module 2 to avoid the harsh howling sound generated when the microphone is close to the speaker to ensure the clarity of the sound quality; the wireless communication subunit 211 adopts Bluetooth communication mode and is compatible with the wireless microphone 3 to avoid the influence of the wiring harness; the present application combines karaoke with cars, increases the entertainment experience of car travel, greatly facilitates users, and increases the entertainment experience of car travel.

[0042] In one embodiment, the structure of the power amplifier module 1 is as follows: Figure 2 As shown, it includes a codec unit 11, a frequency modulation unit 12 and several interfaces; the codec unit 11 is connected to the frequency modulation unit 12, and the audio output module 5, the display output module 6, the external input module 4 and the power module 7 are respectively connected to the power amplifier module 1 through the interfaces.

[0043] The power amplifier module 1 also includes a Bluetooth communication unit 13, and the interface includes a MIC communication interface; the codec unit 11 is connected to the wireless communication subunit 211 through the Bluetooth communication unit 13, or the codec unit 11 is connected to the wired communication subunit 212 through the MIC communication interface.

[0044] Specifically, the power amplifier module 1 in the present application is different from an ordinary power amplifier with only simple encoding and decoding functions, but has built-in multiple functions such as encoding and decoding as well as Bluetooth and FM reception. Compared with the prior art, which can only be achieved by adding multiple functional modules, these functions are integrated, thereby further reducing the manufacturing cost. Figure 2 The power amplifier module 1 includes a codec unit 11, a frequency modulation unit 12 and a Bluetooth communication unit 13. It can establish a connection with the anti-howling module 2 through a wireless Bluetooth method, and can also process the received audio data through the codec unit 11 to improve the sound quality. It can also modulate the audio data through the frequency modulation unit 12 to adjust the sound effect segment to achieve the most ideal sound effect. In this embodiment, the A7900DSP chip is preferably used as the power amplifier module 1 with DSP function. The module also includes several interfaces, including a MIC communication interface, so that the power amplifier module 1 can also be connected to the anti-howling module 2 by wire through the MIC technology. The power amplifier module 1 in this application integrates multiple communication methods and can be switched freely.

[0045] In one embodiment, the structure of the external input module 4 is as follows: Figure 3 As shown, it includes a radio input unit 41 and a playback input unit 42 , wherein the radio input unit 41 includes a DAB digital radio subunit 411 and a band radio subunit 412 , and the playback input unit 42 includes an SD playback input subunit 421 and a USB playback input subunit 422 .

[0046] The present application provides a variety of audio input methods, wherein the DAB digital radio subunit 411 enables the vehicle-mounted karaoke control device to have the function of a digital radio, and the band radio subunit 412 provides a radio function of multiple bands. Preferably, the present embodiment uses a chip combination of SI4730 plus 4745, and provides a full-band function through CMOS technology, which can cope with the complex electromagnetic environment in the car and has a high anti-interference ability. The playback input unit 42 also includes an SD playback input subunit 421 and a USB playback input subunit 422, that is, the playback device in the present embodiment not only supports the audio playback of an external device connected through the AUX interface, but also provides the playback of audio data stored in an SD card and a USB device, wherein the SD playback input subunit 421 provides an SD card slot, and the USB playback input subunit 422 provides a USB interface to support the audio playback of an SD card and a USB device, and these different audio input methods greatly facilitate the user's selection and use, and also provide the user with a better use experience.

[0047] Please refer to Figure 3 The external input module 4 also includes an AUX external input unit 43, and the interface also includes an AUX input interface; the codec unit 11 is connected to the AUX external input unit 43 through the AUX input interface.

[0048] The present application connects the AUX external input unit 43 in the external input module 4 through the AUX input interface provided in the power amplifier module 1, so that the vehicle-mounted karaoke control device supports the playback of audio data in external devices; in addition, the power amplifier module 1 also provides USB interface, power interface, etc., so the power module 7 in this embodiment can be connected to the device by connecting to various interfaces of the power amplifier module 1, that is, the DSP power amplifier device in this embodiment can not only process the original car audio, but also process FM audio, as well as audio input through USB and audio input through Bluetooth connection, realizing multiple modes of audio input function.

[0049] In one embodiment, the structure of the audio output module 5 is as follows: Figure 4 As shown, it includes a first audio output unit 51, an audio amplifier unit 52 and a second audio output unit 53; the first audio output unit 51 is connected to the codec unit 11 through the interface, one end of the audio amplifier unit 52 is connected to the second audio output unit 53, and the other end of the audio amplifier unit 52 is connected to the codec unit 11 through the interface.

[0050] Specifically, the audio data processed by the power amplifier module 1 can be output through the audio output module 5, and the audio output module 5 includes a first audio output unit 51, an audio amplifier unit 52 and a second audio output unit 53, see Figure 4 This embodiment adopts 4CH4-group audio output, and the audio data is directly output through the first audio output unit 51, or it can be pre-driven and amplified through the audio operational amplifier unit 52, and the high frequency components are filtered out and the low frequency components are amplified to compensate for the acoustic defects caused by the bass speaker accessories, and then output through the second audio output unit 53. Among them, the first audio output unit 51 preferably adopts 4 groups of RCA output interfaces and 2 groups of subwoofer outputs, adopts TL084C as the operational amplifier output unit, and uses 4*25W 7388-Speaker as the second audio output unit 53, which further improves the sound quality of the output audio and enhances the user's listening experience.

[0051] In one embodiment, the structure of the display output module 6 is as follows: Figure 5 As shown, it includes a display driving unit 61 and an LCD display screen 62; one end of the display driving unit 61 is connected to the LCD display screen 62, and the other end of the display driving unit 61 is connected to the codec unit 11 through the interface.

[0052] Specifically, the audio data processed by the power amplifier module 1 can also be output through the display output module 6, see Figure 5 The display output module 6 includes a display driving unit 61 and an LCD display screen 62. The present application uses an HT1622 or HT1623 LCD driving chip as the display driving unit 61 to drive the LCD display screen 62. The LCD display screen 62 realizes the screen display of the display screen through a truth table composed of 5 COMs and 32 SEGs, making the displayed content more diverse and flexible, and improving the displayed content and display effect, so that users feel more comfortable using it.

[0053] In one embodiment, the structure of the power module 7 is as follows: Figure 6 As shown, it includes a 12V DC power supply 71, a voltage stabilizing unit 72, a key detection input unit 73 and a DC voltage input unit 74; the 12V DC power supply 71 is connected to the voltage stabilizing unit 72 and the DC voltage input unit 74 respectively, and the key detection input unit 73 and the DC voltage input unit 74 are connected to the codec unit 11 respectively through the interface;

[0054] The power supply module 7 also includes an ignition lock switch 75 and a USB fast charging unit 76; one end of the ignition lock switch 75 is connected to the 12V DC power supply 71, the other end of the ignition lock switch 75 is connected to the key detection input unit 73, one end of the USB fast charging unit 76 is connected to the voltage stabilizing unit 72, and the other end of the USB fast charging unit 76 is connected to the power supply unit 23.

[0055] Specifically, the present application uses a 12V DC power supply 71 as a power supply, and sets a voltage stabilizing unit 72 to be connected thereto so that the voltage is adjusted from 12V to 5V, and inputs it to the power amplifier module 1 through a DC voltage input unit 74 to power it; and the ignition lock switch 75 is connected between the 12V DC power supply 71 and the key detection input unit 73, and its function is to determine whether the car key is in the power supply position of the car audio by judging the ignition lock switch 75 through the key detection input unit 73, thereby determining whether to start the car audio; in addition, the power supply module 7 also includes a USB fast charging unit 76, one end of which is connected to the voltage stabilizing unit 72 so that it has a fast charging function, and the other end is connected to the power supply unit 23 in the anti-howling module 2 to charge it and ensure the normal operation of the car audio karaoke control device.

[0056] In one embodiment, the car audio karaoke control device also includes a crystal oscillator module, a remote control receiving module and a button control module connected to the power amplifier module 1 through an interface; wherein the remote control receiving module can match the remote control to control the power amplifier module 1; and the button control module is also connected to the display drive unit 61, and is used to control the car audio through the buttons on the display panel, such as using one button to perform a composite function with two encoders to achieve multiple functions, such as combining the mode and the radio band switching through MODE / BAND, etc. The specific settings can be flexibly set according to the actual situation, and will not be described one by one here.

[0057] It should be noted that the specific embodiments of the chip used in this application are all preferred embodiments rather than specific limitations, and other circuits or chips with the same or similar functions can be applied to the utility model. In addition, the hardware of car audio is generally divided into three categories, including double-fixed machine hardware, tortoise shell hardware and single-fixed machine hardware. Due to the different interface positions of different hardware, in order to adapt to different hardware types, it is often necessary to constantly adjust the motherboard interface, which brings great inconvenience to production and installation. For this reason, this embodiment makes the three most commonly used types of hardware, power interface, output interface, amplifier position, RCA output interface, etc., all into a unified interface definition, so that one motherboard can be universal for all hardware, and for a variety of different appearances of the shell panel, this embodiment also unifies the panel, and sets two types of LCD display screens 62 of single fixed size and double fixed size for the panel. Through the interface unification and panel unification, the production efficiency of the playback device is greatly improved and unnecessary waste is reduced.

[0058] In one embodiment, the second aspect of the utility model provides a car audio karaoke control system, which includes the car audio karaoke control device as described in the first aspect, and a data terminal 20 connected to the device, and the data terminal 20 includes a PC host and a smart phone. In this embodiment, the car audio karaoke control device is preferably connected to the APP installed on the data terminal 20 to control it, including volume adjustment, sound effect adjustment, audio selection, etc. And the Bluetooth communication unit 131 supports A2DP long-distance reception and transmission, making connection and transmission more convenient.

[0059] An embodiment of the utility model provides a car-mounted audio karaoke control device and system, the device includes a wireless microphone, a power amplifier module, and an audio output module, a display output module, an external input module, a power module and an anti-howling module connected to the power amplifier module; the anti-howling module includes a data communication unit, a data processing unit and a power supply unit, and the power supply unit is respectively connected to the data communication unit and the data processing unit; the data communication unit includes a wireless communication subunit and a wired communication subunit, the anti-howling module is connected to the wireless microphone through the wireless communication subunit, and the anti-howling module is connected to the power amplifier module through the wireless communication subunit or the wired communication subunit; the utility model cross-border combines karaoke with automobiles, increases the entertainment experience of car travel, and greatly facilitates users.

[0060] The above embodiments are preferred implementation modes of the present invention, but the implementation modes of the present invention are not limited by the above embodiments. Any other changes, modifications, substitutions, combinations, and simplifications that do not deviate from the spirit and principle of the present invention should be equivalent replacement methods and are included in the protection scope of the present invention.

Claims

1. A car audio karaoke control device, characterized in that: The device comprises a wireless microphone, a power amplifier module, and an audio output module, a display output module, an external input module, a power supply module and an anti-howling module connected to the power amplifier module; The anti-howling module includes a data communication unit, a data processing unit and a power supply unit, and the power supply unit is connected to the data communication unit and the data processing unit respectively; The data communication unit includes a wireless communication subunit and a wired communication subunit, the anti-howling module is connected to the wireless microphone through the wireless communication subunit, and the anti-howling module is connected to the power amplifier module through the wireless communication subunit or the wired communication subunit.

2. A car audio karaoke control device according to claim 1, characterized in that: The power amplifier module includes a coding unit, a frequency modulation unit and several interfaces; The codec unit is connected to the frequency modulation unit, and the audio output module, the display output module, the external input module and the power supply module are respectively connected to the power amplifier module through the interface.

3. A car audio karaoke control device according to claim 2, characterized in that: The power amplifier module also includes a Bluetooth communication unit, and the interface includes a MIC communication interface; The codec unit is connected to the wireless communication subunit via the Bluetooth communication unit, or the codec unit is connected to the wired communication subunit via the MIC communication interface.

4. A car audio karaoke control device according to claim 2, characterized in that: The external input module includes a radio input unit and a playback input unit. The radio input unit includes a DAB digital radio subunit and a band radio subunit. The playback input unit includes an SD playback input subunit and a USB playback input subunit.

5. A car audio karaoke control device according to claim 4, characterized in that: The external input module also includes an AUX external input unit, and the interface also includes an AUX input interface; The encoding and decoding unit is connected to the AUX external input unit through the AUX input interface.

6. The car audio karaoke control device according to claim 2, characterized in that: The audio output module includes a first audio output unit, an audio amplifier unit and a second audio output unit; The first audio output unit is connected to the codec unit through the interface, one end of the audio amplifier unit is connected to the second audio output unit, and the other end of the audio amplifier unit is connected to the codec unit through the interface.

7. The car audio karaoke control device according to claim 2, characterized in that: The display output module includes a display driving unit and an LCD display screen; One end of the display driving unit is connected to the LCD display screen, and the other end of the display driving unit is connected to the codec unit through the interface.

8. The car audio karaoke control device according to claim 2, characterized in that: The power module includes a 12V DC power supply, a voltage stabilization unit, a key detection input unit and a DC voltage input unit; The 12V DC power supply is connected to the voltage stabilizing unit and the DC voltage input unit respectively, and the key detection input unit and the DC voltage input unit are connected to the encoding and decoding unit respectively through the interface.

9. The car audio karaoke control device according to claim 8, characterized in that: The power module also includes an ignition lock switch and a USB fast charging unit; One end of the ignition lock switch is connected to the 12V DC power supply, the other end of the ignition lock switch is connected to the key detection input unit, one end of the USB fast charging unit is connected to the voltage stabilizing unit, and the other end of the USB fast charging unit is connected to the power supply unit.

10. A car audio karaoke control system, characterized in that: It comprises a car audio karaoke control device as claimed in any one of claims 1 to 9, and a data terminal connected to the device, wherein the data terminal comprises a PC host and a smart phone.

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