CN211427838U

CN211427838U - Vehicle-mounted intelligent sound device

Info

Publication number: CN211427838U
Application number: CN201921930064.6U
Authority: CN
Inventors: 李想; 翟静; 倪红兵; 陆云山; 邹韬
Original assignee: Yangzhou Hangsheng Technology Co ltd
Current assignee: Yangzhou Hangsheng Technology Co ltd
Priority date: 2019-11-11
Filing date: 2019-11-11
Publication date: 2020-09-04
Anticipated expiration: 2029-11-11

Abstract

The utility model discloses a vehicle-mounted intelligent sound device in the technical field of vehicle-mounted voice recognition, including MIC audio input, MIC audio input is connected with DSP audio processing core, and DSP audio processing core links to each other with SOC central control core and AMP power amplifier module respectively, SOC central control core links to each other with demonstration touch-control module and MCU singlechip respectively, the MCU singlechip is connected with AMP power amplifier module and automobile information interaction interface respectively, AMP power amplifier module links to each other with automobile audio output; can the noise reduction, clear discernment main and auxiliary driver position's sound, the exchange of front and back row pronunciation is clear, and speech quality obtains guaranteeing to can send the prompt tone to the pedestrian that is close to, ensure driving safety, the utility model discloses can be used to on-vehicle intelligent speech control.

Description

Vehicle-mounted intelligent sound device

Technical Field

The utility model relates to a speech recognition device.

Background

Publication numbers are disclosed in the prior art: CN 209159579U, announcement date: 2019.07.26 discloses a vehicle-mounted intelligent voice auxiliary device, including intelligent pronunciation chip, vehicle-mounted intelligent voice auxiliary device body and be used for being fixed in the fixed part in the car with vehicle-mounted intelligent voice auxiliary device body, vehicle-mounted intelligent voice auxiliary device body is including the microphone module that is used for acquireing outside voice command, the wiFi module that is used for connecting the network high in the clouds, the Micro-USB interface that is used for connecting the audio connection module of vehicle-mounted audio amplifier and is used for connecting external power source, and intelligent pronunciation chip is all connected to microphone module, wiFi module, audio connection module and Micro-USB interface. The utility model discloses the network resource is acquireed to lug connection WIFI network signal or cell-phone focus, is connected with on-vehicle audio amplifier through audio frequency connection module, docks the network resource to give user's intelligence pronunciation supplementary, the pronunciation dibble seeding need not manual operation, increases and experiences the sense, improves driving operation safety, simultaneously under the safe prerequisite of guarantee, can the abundant network resource of dibble seeding by pronunciation transfer, has added driving enjoyment. However, in the driving experience, the voice communication noise is large, the voice prompt cannot be performed on the approaching pedestrians in the using process, the sound of the main driver and the assistant driver cannot be distinguished, the communication between the front row and the rear row of the automobile is not clear, and the communication quality is poor.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing an on-vehicle intelligent sound device can the noise reduction, and the sound of main and assistant driver's position is clearly discerned, and the pronunciation of front and back row exchanges clearly, and speech quality obtains guaranteeing to can send the prompt tone to the pedestrian that is close to, ensure driving safety.

In order to realize the above-mentioned purpose, the utility model provides an on-vehicle intelligent sound device, including MIC audio input, MIC audio input is connected with DSP audio processing core, and DSP audio processing core links to each other with SOC central control core and AMP power amplifier module respectively, SOC central control core links to each other with demonstration touch-control module and MCU singlechip respectively, the MCU singlechip is connected with AMP power amplifier module and the mutual interface of automobile information respectively, AMP power amplifier module links to each other with automobile audio output.

Compared with the prior art, the utility model has the advantages that the MIC audio input is connected with the double MICs of the automobile driving position, and the rear-row MIC is connected with the DSP audio processing core, so as to complete the sound audio signal input of the driver and the rear-row passenger; the display touch module is connected with the SOC central control core to complete the display touch function and realize friendly interaction with front passengers; the DSP audio processing core is connected with the MIC audio input, the SOC central control core and the AMP power amplifier module, receives MIC voice signal input arranged in front and back of the automobile, integrates and processes audio signals, outputs the audio signals to the vehicle-mounted loudspeaker through the AMP power amplifier module, finishes sound output and controls the sound output by the SOC central control core; SOC central control core and demonstration touch-control module, MCU single chip microcomputer control, DSP audio frequency processing core links to each other, carry out overall control to the system, receive the automobile body information that MCU conveyed, receive touch signal, the video signal that the transmission was handled shows to display module assembly, control DSP audio frequency processing core filters the MIC signal, it makes an uproar to fall, the echo disappears, audio frequency integration, audio sound field control etc. MCU single chip microcomputer control: the automobile information interaction interface is connected with the SOC control central core, the AMP power amplification module and the automobile information interaction interface, receives automobile interaction information, transmits serial port data to the SOC central control core and completes control of the AMP power amplification module; the AMP power amplification module is connected with the DSP audio processing core, completes the power amplification of the analog signal and outputs the analog signal to the automobile loudspeaker to complete the sound output of the system; can the noise reduction, clear discernment main and auxiliary driver position's sound, the pronunciation of front and back row exchange clearly, and speech quality obtains guaranteeing to can send the prompt tone to the pedestrian that is close to, ensure driving safety, the utility model discloses can be used to on-vehicle intelligent speech control.

As a further improvement of the present invention, the SOC central control core includes a CSRS3703B03 chip, the MCU chip includes a MB91F524 chip, the SPI1 port of the CSRS3703B03 chip is connected to the SPI1 port of the MB91F524 chip, the UART3 port of the CSRS3703B03 chip is connected to the UART3 port of the MB91F524 chip, the UART4 port of the CSRS3703B03 chip is connected to the UART4 port of the MB91F524 chip, so as to better control the entire device.

As a further improvement of the utility model, the DSP audio frequency processing core includes YMU837 chip, the I2S/PCM #2 port of YMU837 chip links to each other with the I2S port of CSRS3703B03 chip, the I2S/PCM #1 port of YMU837 chip links to each other with the USP1 port of CSRS3703B03 chip, the SPI port of YMU837 chip links to each other with the SPI0 port of CSRS3703B03 chip, can handle sound like this better.

As the utility model discloses a further improvement, AMP power amplifier module includes the power amplifier 8541 chip, the I2C0 port of power amplifier 8541 chip links to each other with the I2C0 port of MB91F524 chip, the power amplifier 8541 chip links to each other with YMU837 chip, can link to each other with DSP audio frequency processing core better, accomplishes analog signal power and enlargies, exports and accomplishes system's sound output for car speaker.

As a further improvement of the utility model, it includes the display screen to show touch-control module, the display screen links to each other with backlight circuit, drive plate and ATMXT799T-AT respectively, ATMXT 799T-AT's LVDS port links to each other with CSRS3703B03 chip's LVDS port, ATMXT 799T-AT's SOC _ I2C1 port links to each other with CSRS3703B03 chip's I2C1 port, then can accomplish better and show touch function, realizes the friendly interaction with the front passenger.

As the utility model discloses a further improvement, MIC audio input includes MIC1 main identification, MIC2 environment sound and MIC3 back row sound, MIC1 main identification and MIC2 environment sound set up the driver's seat in car cabin, and MIC3 back row sound sets up the back row in car cabin, MIC1 main identification, MIC2 environment sound and MIC3 back row sound link to each other with YMU837 chip, can carry out driver and back row passenger sound audio signal input better like this.

As a further improvement, car audio output includes tweeter, external bee calling organ and door speaker, external bee calling organ is provided with four and sets up the four corners in car cabin respectively, tweeter is provided with four, sets up the both sides in the front-seat of car cabin and the both sides of back row respectively, door speaker is provided with four, sets up respectively on four doors, and car periphery bee calling organ accomplishes the outer pedestrian warning function of car all around like this, and car sound customization system sound output function is accomplished to eight speakers all around to the car.

Drawings

Fig. 1 is a system block diagram of the present invention.

Fig. 2 is a connection diagram of the hardware circuit of the present invention.

Fig. 3 is a hardware connection diagram of the touch module of the present invention.

Fig. 4 is a hardware connection diagram of the central control core of SOC of the present invention.

Fig. 5 is the MIC, buzzer and loudspeaker distribution diagram of the utility model.

Wherein, 1MIC owner discerns, 2 door speakers, 3 car cabins, 4 tweeters, 5 external buzzers, 6MIC2 environment sound, 7MIC3 back row sound.

Detailed Description

The present invention will be further explained with reference to the accompanying drawings:

as shown in fig. 1-5, a vehicle-mounted intelligent sound device, including MIC audio input, MIC audio input is connected with DSP audio processing core, DSP audio processing core links to each other with SOC central control core and AMP power amplifier module respectively, SOC central control core links to each other with demonstration touch-control module and MCU singlechip respectively, the MCU singlechip is connected with AMP power amplifier module and automobile information interaction interface respectively, AMP power amplifier module links to each other with automobile audio output.

The SOC central control core comprises a CSRS3703B03 chip, the MCU singlechip comprises an MB91F524 chip, an SPI1 port of the CSRS3703B03 chip is connected with an SPI1 port of the MB91F524 chip, a UART3 port of the CSRS3703B03 chip is connected with a UART3 port of the MB91F524 chip, and a UART4 port of the CSRS3703B03 chip is connected with a UART4 port of the MB91F524 chip.

The DSP audio processing core comprises a YMU837 chip, an I2S/PCM #2 port of the YMU837 chip is connected with an I2S port of a CSRS3703B03 chip, an I2S/PCM #1 port of the YMU837 chip is connected with a USP1 port of the CSRS3703B03 chip, and an SPI port of the YMU837 chip is connected with an SPI0 port of the CSRS3703B03 chip.

The AMP power amplifier module comprises a power amplifier 8541 chip, wherein an I2C0 port of the power amplifier 8541 chip is connected with an I2C0 port of the MB91F524 chip, and the power amplifier 8541 chip is connected with a YMU837 chip; the display touch module comprises a display screen, wherein the display screen is respectively connected with a backlight circuit, a driving board and an ATMXT799T-AT, an LVDS port of the ATMXT799T-AT is connected with an LVDS port of a CSRS3703B03 chip, and an SOC _ I2C1 port of the ATMXT799T-AT is connected with an I2C1 port of the CSRS3703B03 chip.

The MIC audio input comprises MIC1 main recognition 1, MIC2 environmental sound 6 and MIC3 rear row sound 7, the MIC1 main recognition 1 and the MIC2 environmental sound 6 are arranged at a driving position of the automobile cabin 3, the MIC3 rear row sound 7 is arranged at the rear row of the automobile cabin 3, and the MIC1 main recognition 1, the MIC2 environmental sound 6 and the MIC3 rear row sound 7 are connected with a YMU837 chip; the automobile audio output comprises four tweeters 4, external buzzers 5 and door speakers 2, the external buzzers 5 are arranged in four corners of the automobile cabin 3, the four tweeters 4 are arranged in four sides of the front row and two sides of the rear row of the automobile cabin 3, the door speakers 2 are arranged in four sides and are arranged on four doors respectively.

When the system is used, when a driver drives a door to enter an automobile cockpit, the system monitors information such as the driving door, automobile starting and the like through a vehicle-mounted CAN bus, and the system sends welcome sound through a loudspeaker corresponding to a driver position at the left front of the automobile in due time; vehicle-mounted radars at four corners of the automobile are integrated with external prompt buzzers, the buzzers send out dripping sounds to remind pedestrians, the closer the pedestrians are, the higher the prompt sound frequency is, system corresponding information is provided through a vehicle-mounted CAN bus, and the positions of specific pedestrians around the automobile are displayed through a display screen in combination with video information of cameras around the automobile; the function is the same as the function, and four main loudspeakers in the periphery of the automobile are utilized to send out dripping sound to remind a driver. The panoramic parking barrier is displayed through a high-definition large screen by combining video information of cameras around the automobile, and meanwhile, the DSP controls and adjusts a sound field through sound effect to enable a driver to sense the distance of the barrier in the corresponding direction; the central control host MIC can aim at inhibiting sounds except for main driving and can also simultaneously identify main and auxiliary driving sounds through a pointing technology; through the driver's seat MIC, the speaker cooperates with the rear row MIC speaker, reaches main vice driver's seat and carries out light conversation with the third row passenger. The system carries out noise elimination, echo and howling elimination and the like aiming at the sound loop, thereby ensuring the conversation quality; MIC (microphone) in the front row of the automobile identifies engine noise, after DSP (digital signal processor) identification processing, phase-opposite noise is emitted by a loudspeaker around the automobile to counteract the engine noise, components above 2-order harmonic are effectively inhibited, wide automobile space is covered, and a correction function is matched; by using a composite algorithm, natural engine sounds (inside or outside a vehicle) of a corresponding vehicle type, such as farley engine sounds, are simulated through DSP synthesis, balance is achieved on the low-noise, low-fuel and inflator stopping functions of an engine, powerful engine sounds are transmitted to a driver, and driving feeling and pleasure are improved; music carries out whole car sound field control through the inside audio algorithm of DSP in the car, lets driver or whole car passenger produce one kind and is personally on the scene, and sound encircles the sensation that the health is beated along with the rhythm, promotes and experiences.

The present invention is not limited to the above embodiments, and based on the technical solutions of the present disclosure, those skilled in the art can make some substitutions and transformations to some technical features without creative labor according to the disclosed technical contents, and these substitutions and transformations are all within the protection scope of the present invention.

Claims

1. The utility model provides a vehicle-mounted intelligent sound device which characterized in that: including MIC audio input, MIC audio input is connected with DSP audio processing core, and DSP audio processing core links to each other with SOC central control core and AMP power amplifier module respectively, SOC central control core links to each other with demonstration touch-control module and MCU singlechip respectively, the MCU singlechip is connected with AMP power amplifier module and automobile information interaction interface respectively, AMP power amplifier module links to each other with automobile audio output.

2. The vehicle-mounted intelligent sound device according to claim 1, characterized in that: the SOC central control core comprises a CSRS3703B03 chip, the MCU singlechip comprises an MB91F524 chip, an SPI1 port of the CSRS3703B03 chip is connected with an SPI1 port of the MB91F524 chip, a UART3 port of the CSRS3703B03 chip is connected with a UART3 port of the MB91F524 chip, and a UART4 port of the CSRS3703B03 chip is connected with a UART4 port of the MB91F524 chip.

3. The vehicle-mounted intelligent sound device according to claim 2, characterized in that: the DSP audio processing core comprises a YMU837 chip, an I2S/PCM #2 port of the YMU837 chip is connected with an I2S port of a CSRS3703B03 chip, an I2S/PCM #1 port of the YMU837 chip is connected with a USP1 port of the CSRS3703B03 chip, and an SPI port of the YMU837 chip is connected with an SPI0 port of the CSRS3703B03 chip.

4. The vehicle-mounted intelligent sound device according to claim 3, wherein: the AMP power amplifier module comprises a power amplifier 8541 chip, an I2C0 port of the power amplifier 8541 chip is connected with an I2C0 port of the MB91F524 chip, and the power amplifier 8541 chip is connected with a YMU837 chip.

5. The vehicle-mounted intelligent sound device according to claim 4, wherein: the display touch module comprises a display screen, wherein the display screen is respectively connected with a backlight circuit, a driving board and an ATMXT799T-AT, an LVDS port of the ATMXT799T-AT is connected with an LVDS port of a CSRS3703B03 chip, and an SOC _ I2C1 port of the ATMXT799T-AT is connected with an I2C1 port of a CSRS3703B03 chip.

6. The vehicle-mounted intelligent sound device according to claim 5, wherein: the MIC audio input comprises MIC1 main identification, MIC2 environment sound and MIC3 rear row sound, the MIC1 main identification and the MIC2 environment sound are arranged at a driving position of an automobile cabin, the MIC3 rear row sound is arranged at the rear row of the automobile cabin, and the MIC1 main identification, the MIC2 environment sound and the MIC3 rear row sound are connected with a YMU837 chip.

7. The vehicle-mounted intelligent sound device according to any one of claims 1 to 6, characterized in that: the car audio output includes tweeter, external bee calling organ and door speaker, external bee calling organ is provided with four and sets up the four corners in car cabin respectively, tweeter is provided with four, sets up the both sides at the front bank in car cabin and the both sides of back row respectively, door speaker is provided with four, sets up respectively on four doors.