CN215815174U - Voice interaction system inside and outside vehicle and vehicle - Google Patents
Voice interaction system inside and outside vehicle and vehicle Download PDFInfo
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Abstract
The application relates to an in-vehicle and out-vehicle voice interaction system and an automobile. The in-vehicle and out-vehicle voice interaction system comprises a central processing unit, an in-vehicle sound processing device and an out-vehicle sound processing device; wherein, the sound processing device inside the vehicle and the sound processing device outside the vehicle are respectively connected with the central processing unit; the system comprises an in-vehicle sound processing device, a central processing unit and a control unit, wherein the in-vehicle sound processing device is used for acquiring an in-vehicle audio signal and sending the in-vehicle audio signal to the central processing unit; receiving and playing the audio signal outside the vehicle sent by the central processing unit; the system comprises a vehicle exterior sound processing device, a central processing unit and a vehicle exterior sound processing unit, wherein the vehicle exterior sound processing device is used for acquiring a vehicle exterior audio signal and sending the vehicle exterior audio signal to the central processing unit; and receiving and playing the audio signal in the vehicle sent by the central processing unit. The scheme that this application provided can reduce the difficulty that personnel and the personnel outside the car communicate in the car when door or door window are closed, makes things convenient for personnel and the personnel outside the car to communicate in the car.
Description
Technical Field
The application relates to the technical field of automobiles, in particular to an in-automobile voice interaction system and an automobile.
Background
At present, when people in an automobile communicate with people outside the automobile, the people can listen to the voice of the other party only by opening the window or the door of the automobile. When the door or window is in a closed state, it is difficult for the person inside the automobile and the person outside the automobile to hear the other side due to the sound insulation of the automobile body, resulting in a difficult flow of communication. Therefore, when the door or window is closed, it becomes difficult for the person inside the automobile to communicate with the person outside the automobile.
SUMMERY OF THE UTILITY MODEL
In order to solve or partially solve the problems existing in the related technology, the application provides the in-vehicle and out-vehicle voice interaction system and the vehicle.
The application provides an in-vehicle and out-vehicle voice interaction system, which comprises a central processing unit, an in-vehicle sound processing device and an out-vehicle sound processing device; wherein,
the sound processing device inside the vehicle and the sound processing device outside the vehicle are respectively connected with the central processing unit;
the in-vehicle sound processing device is used for acquiring in-vehicle audio signals and sending the in-vehicle audio signals to the central processing unit; receiving and playing the vehicle external audio signal sent by the central processing unit;
the vehicle exterior sound processing device is used for acquiring vehicle exterior audio signals and sending the vehicle exterior audio signals to the central processing unit; and receiving and playing the in-vehicle audio signal sent by the central processing unit.
In one embodiment, the in-vehicle sound processing device comprises an in-vehicle microphone and an in-vehicle speaker, and the in-vehicle microphone and the in-vehicle speaker are respectively connected with the central processing unit; the in-vehicle microphone is used for acquiring in-vehicle audio signals and sending the in-vehicle audio signals to the central processing unit; the loudspeaker in the vehicle is used for receiving and playing the audio signal outside the vehicle sent by the central processing unit; and/or
The vehicle exterior sound processing device comprises a vehicle exterior microphone and a vehicle exterior loudspeaker; the vehicle exterior microphone and the vehicle exterior loudspeaker are respectively connected with the central processing unit; the loudspeaker outside the vehicle is used for receiving and playing the audio signal inside the vehicle sent by the central processing unit; the outer microphone of the car is used for acquiring the outer audio signal of the car and sending the outer audio signal of the car to the central processing unit.
In one embodiment, the central processing unit comprises:
the noise reduction module is used for carrying out noise reduction processing on the in-vehicle audio signal and sending the in-vehicle audio signal to the loudspeaker outside the vehicle; and/or the outside audio signal is subjected to noise reduction processing and sent to the inside loudspeaker.
In one embodiment, the central processing unit comprises:
the voice enhancement module is used for carrying out voice enhancement processing on the in-vehicle audio signal and sending the in-vehicle audio signal to the loudspeaker outside the vehicle; and/or the voice enhancement processing is carried out on the audio signal outside the vehicle, and the audio signal outside the vehicle is sent to the loudspeaker inside the vehicle.
In one embodiment, the central processing unit comprises:
the echo eliminating module is used for eliminating echo of the in-vehicle audio signal and sending the in-vehicle audio signal to the loudspeaker outside the vehicle; and/or, the echo elimination device is used for eliminating echoes of the audio signals outside the vehicle and sending the audio signals outside the vehicle to the loudspeaker inside the vehicle.
In one embodiment, the central processing unit comprises:
the audio signal power amplification module is used for carrying out audio signal power amplification processing on the in-vehicle audio signal and sending the in-vehicle audio signal to the loudspeaker outside the vehicle; and/or, the audio signal power amplification processing is carried out on the audio signal outside the vehicle, and the audio signal outside the vehicle is sent to the loudspeaker inside the vehicle.
In one embodiment, the system further comprises:
and the sound detection module is connected with the central processing unit and is used for detecting sounds inside or outside the vehicle so as to trigger the system to be started or closed.
In one embodiment, the method further comprises:
the loudspeaker outside the vehicle is a loudspeaker in a low-speed prompt sound system; and/or the presence of a gas in the gas,
the central processing unit, the in-vehicle microphone and the in-vehicle loudspeaker are arranged in the vehicle audio-video entertainment system.
In one embodiment, the central processing unit includes a noise reduction module, a voice enhancement module, an echo cancellation module, and an audio signal power amplification module, which are connected in parallel.
A second aspect of the present application provides an automobile, which includes the in-vehicle and out-vehicle voice interaction system described in any of the above embodiments.
The technical scheme provided by the application can comprise the following beneficial effects:
the utility model provides an inside and outside voice interaction system in car, audio signal in the car is obtained through sound processing apparatus in the car, and send audio signal to the sound processing apparatus outside the car in the car through central processing unit, so that personnel outside the car can hear personnel's in the car sound clearly, and simultaneously, acquire the audio signal outside the car through sound processing apparatus outside the car, and send audio signal outside the car to sound processing apparatus in the car through central processing unit, so that personnel outside the car hear personnel's sound clearly, thereby can be when door or door window are closed, reduce the difficulty that personnel and personnel outside the car in the car exchanged, make things convenient for personnel and personnel outside the car to communicate in the car.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the application.
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The foregoing and other objects, features and advantages of the application will be apparent from the following more particular descriptions of exemplary embodiments of the application, as illustrated in the accompanying drawings wherein like reference numbers generally represent like parts throughout the exemplary embodiments of the application.
Fig. 1 is a schematic structural diagram of a vehicle interior and exterior voice interaction system according to an embodiment of the present application;
FIG. 2 is another schematic structural diagram of the in-vehicle and out-vehicle voice interaction system according to the embodiment of the present application;
fig. 3 is a schematic application flow diagram of the in-vehicle and out-vehicle voice interaction system shown in fig. 2 of the present application.
Reference numerals: an in-vehicle and out-vehicle voice interaction system 10; a central processing unit 100; a noise reduction module 110; a speech enhancement module 120; an echo cancellation module 130; an audio signal power amplification module 140; an in-vehicle sound processing device 200; an in-vehicle microphone 210; an in-vehicle speaker 220; an external sound processing device 300; an offboard speaker 310; an outboard microphone 320; the sound detection module 400.
Detailed Description
Embodiments of the present application will be described in more detail below with reference to the accompanying drawings. While embodiments of the present application are illustrated in the accompanying drawings, it should be understood that the present application may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.
It should be understood that although the terms "first," "second," "third," etc. may be used herein to describe various information, these information should not be limited to these terms. These terms are only used to distinguish one type of information from another. For example, first information may also be referred to as second information, and similarly, second information may also be referred to as first information, without departing from the scope of the present application. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present application, "a plurality" means two or more unless specifically limited otherwise.
In the description of the present application, it is to be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientation or positional relationship indicated in the drawings for convenience in describing the present application and for simplicity in description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed in a particular orientation, and be operated in a particular manner, and are not to be considered limiting of the present application.
Unless expressly stated or limited otherwise, the terms "mounted," "connected," "secured," and the like are intended to be inclusive and mean that, for example, they may be fixedly connected or detachably connected or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.
At present, when people in an automobile communicate with people outside the automobile, the people can listen to the voice of the other party only by opening the window or the door of the automobile. When the door or window is in a closed state, it is difficult for the person inside the automobile and the person outside the automobile to hear the other side due to the sound insulation of the automobile body, resulting in a difficult flow of communication. Therefore, when the door or window is closed, it becomes difficult for the person inside the automobile to communicate with the person outside the automobile.
In view of the above problems, the embodiment of the application provides an in-vehicle and out-vehicle voice interaction system, which can reduce the difficulty in communication between personnel in an automobile and personnel outside the automobile when the automobile door or the automobile window is closed, and is convenient for the personnel in the automobile to communicate with the personnel outside the automobile.
The technical solutions of the embodiments of the present application are described in detail below with reference to the accompanying drawings.
Referring to fig. 1, the in-vehicle and out-vehicle voice interaction system 10 of the present application includes a central processing unit 100, an in-vehicle sound processing device 200, and an out-vehicle sound processing device 300; wherein, the sound processing device 200 inside the vehicle and the sound processing device 300 outside the vehicle are respectively connected with the central processing unit 100; the in-vehicle sound processing device 200 is configured to obtain an in-vehicle audio signal and send the in-vehicle audio signal to the central processing unit 100; receiving and playing the audio signal outside the vehicle sent by the central processing unit 100; the vehicle exterior sound processing device 300 is used for acquiring a vehicle exterior audio signal and sending the vehicle exterior audio signal to the central processing unit 100; and receives and plays the in-vehicle audio signal transmitted by the central processing unit 100.
The utility model provides an inside and outside voice interaction system in car, audio signal in the car is obtained through sound processing apparatus in the car, and send audio signal to the sound processing apparatus outside the car in the car through central processing unit, so that personnel outside the car can hear personnel's in the car sound clearly, and simultaneously, acquire the audio signal outside the car through sound processing apparatus outside the car, and send audio signal outside the car to sound processing apparatus in the car through central processing unit, so that personnel outside the car hear personnel's sound clearly, thereby can be when door or door window are closed, reduce the difficulty that personnel and personnel outside the car in the car exchanged, make things convenient for personnel and personnel outside the car to communicate in the car.
Referring to fig. 2, further, in an embodiment, the in-vehicle sound processing apparatus 200 includes an in-vehicle microphone 210 and an in-vehicle speaker 220, and the in-vehicle microphone 210 and the in-vehicle speaker 220 are respectively connected to the central processing unit 100; the in-vehicle microphone 210 is configured to acquire an in-vehicle audio signal and send the in-vehicle audio signal to the central processing unit 100; the speaker 220 in the vehicle is used for receiving and playing the audio signal outside the vehicle sent by the central processing unit 100; and/or, the off-board sound processing device 300 includes an off-board microphone 320 and an off-board speaker 310; the exterior microphone 320 and the exterior speaker 310 are respectively connected with the central processing unit 100; the external speaker 310 is used for receiving and playing the audio signal in the vehicle sent by the central processing unit 100; and an exterior microphone 320 for acquiring an exterior audio signal and transmitting the exterior audio signal to the central processing unit 100.
The in-vehicle microphone 210 collects all sounds in the vehicle, including sounds of persons in the vehicle, ambient sounds in the vehicle, and sounds played by the in-vehicle speaker 220. All the collected sounds are generated into an in-vehicle audio signal through the in-vehicle microphone 210, wherein the in-vehicle voice signal generated by the sounds of the in-vehicle person is included. After receiving the in-vehicle audio signal sent by the in-vehicle microphone 210, the cpu 100 may directly send the in-vehicle audio signal to the out-vehicle speaker 310, or may perform corresponding processing on the in-vehicle audio signal and send the processed in-vehicle audio signal to the out-vehicle speaker 310. The central processing unit 100 may perform at least one of audio signal processing including audio signal noise reduction, audio signal enhancement, echo cancellation, and audio power amplification on the in-vehicle audio signal. Likewise, the exterior microphone 320 collects all sounds outside the vehicle, including the sounds of the person outside the vehicle, the ambient sounds outside the vehicle, and the sounds played by the exterior speaker 310. All collected sounds are generated into an outside-vehicle audio signal through an outside-vehicle microphone 320, wherein the outside-vehicle audio signal generated by the outside-vehicle personnel sounds is included. After receiving the external audio signal sent by the external microphone 320, the cpu 100 may directly send the external audio signal to the speaker 220 in the vehicle, or may correspondingly process the external audio signal and send the processed external audio signal to the speaker 220 in the vehicle. The central processing unit 100 may perform at least one of audio signal processing including audio signal noise reduction, audio signal enhancement, echo cancellation, and audio power amplification on the off-board audio signal.
In the in-vehicle and out-vehicle voice interaction system 10, the in-vehicle audio signal is acquired through the in-vehicle microphone 210 and is sent to the central processing unit 100, and the out-vehicle speaker 310 receives and plays the in-vehicle audio signal; and acquires the external audio signal through the external microphone 320 and transmits the external audio signal to the central processing unit 100, and the internal speaker 220 receives and plays the external audio signal. Due to the design, when the car window or the car door is closed, on one hand, the sound of the person in the car can be played outside the car through the car microphone 210, the central processing unit 100 and the car loudspeaker 310, so that the person outside the car can hear the sound of the person in the car conveniently; on the other hand, the sound of the person outside the automobile can be played in the automobile through the microphone 320 outside the automobile, the central processing unit 100 and the loudspeaker 220 in the automobile, so that the person in the automobile can conveniently listen to the sound of the person outside the automobile. Furthermore, when the vehicle door or the vehicle window is closed, the difficulty of communication between the personnel in the vehicle and the personnel outside the vehicle is reduced, and the communication between the personnel in the vehicle and the personnel outside the vehicle is facilitated.
Referring to fig. 2, in one embodiment, the cpu 100 includes: the noise reduction module 110 is configured to perform noise reduction processing on the in-vehicle audio signal, and send the in-vehicle audio signal to the out-vehicle speaker 310; and/or for performing noise reduction processing on the vehicle exterior audio signal and sending the vehicle exterior audio signal to the vehicle interior speaker 220. In one embodiment, the noise reduction module 110 may implement the noise reduction function through a related art. For example, in one embodiment, the noise reduction module 110 includes an analog-to-digital conversion module, a noise cancellation module, and a digital-to-analog conversion module connected in sequence. Further, the in-vehicle microphone 210 is connected to the analog-to-digital conversion module, and the digital-to-analog conversion module is connected to the out-vehicle speaker 310; and/or the exterior microphone 320 is connected with an analog-to-digital conversion module, and the digital-to-analog conversion module is connected with the interior speaker 220. The analog-to-digital conversion module performs analog-to-digital conversion on the in-vehicle audio signal acquired by the in-vehicle microphone 210 to obtain an in-vehicle audio digital signal, and transmits the in-vehicle audio digital signal to the noise elimination module; and/or the analog-to-digital conversion module performs analog-to-digital conversion on the vehicle exterior audio signals collected by the vehicle exterior microphone 320 to obtain vehicle exterior audio digital signals, and transmits the vehicle exterior audio digital signals to the noise elimination module. The noise elimination module can eliminate noise of the audio digital signal inside the vehicle and the audio digital signal outside the vehicle through an LMS (Least Mean square) algorithm, a basic spectral subtraction algorithm and a wiener filtering noise reduction algorithm. The digital-to-analog conversion module performs digital-to-analog conversion on the in-vehicle audio digital signal processed by the noise elimination module to obtain an in-vehicle audio signal, and transmits the in-vehicle audio signal to the out-vehicle speaker 310; and/or, the digital-to-analog conversion module performs digital-to-analog conversion on the external audio digital signal processed by the noise elimination module to obtain an external audio signal, and transmits the external audio signal to the in-vehicle speaker 220.
Referring to fig. 2, in one embodiment, the cpu 100 includes: the voice enhancement module 120 is configured to perform voice enhancement processing on the in-vehicle audio signal and send the in-vehicle audio signal to the out-vehicle speaker 310; and/or for performing speech enhancement processing on the off-board audio signal and sending the off-board audio signal to the in-vehicle speaker 220. The speech enhancement module 120 may implement speech enhancement functionality through correlation techniques. For example, in an embodiment, the voice enhancement module 120 includes a plurality of filtering and amplifying modules, each filtering and amplifying module is connected in sequence, and each filtering and amplifying module is configured to amplify a voice signal of an in-vehicle person in an in-vehicle audio signal and send the in-vehicle audio signal to the central processing unit 100; and/or amplifying a voice signal of the person outside the vehicle in the audio signal outside the vehicle and transmitting the audio signal outside the vehicle to the central processing unit 100.
Because the speaker in the vehicle plays the audio signal outside the vehicle, the microphone 210 in the vehicle will collect the audio signal outside the vehicle played by the speaker 220 in the vehicle, and further the speaker 310 outside the vehicle will generate echo when playing the audio signal inside the vehicle; similarly, the external speaker plays the audio signal in the vehicle, which will cause the external speaker 310 to play the audio signal collected by the external microphone 320, and further cause the internal speaker 220 to play the external audio signal, which will generate an echo. To cancel echo, referring to fig. 2, in an embodiment, the central processing unit 100 includes: the echo eliminating module 130 is configured to perform echo eliminating processing on the in-vehicle audio signal and send the in-vehicle audio signal to the out-vehicle speaker 310; and/or for performing echo cancellation processing on the vehicle exterior audio signal and sending the vehicle exterior audio signal to the vehicle interior speaker 220. In the related art, when the echo outside the vehicle is eliminated, the echo eliminating module may eliminate the audio signal outside the vehicle, which is acquired by the microphone 320 outside the vehicle, from the audio signal inside the vehicle, which is acquired by the microphone 210 inside the vehicle, so as to prevent the loudspeaker 310 outside the vehicle from generating the echo when playing the audio signal inside the vehicle. Similarly, when the in-vehicle echo is eliminated, the echo elimination module may eliminate the in-vehicle audio signal acquired by the in-vehicle microphone 210 from the external audio signal acquired by the external microphone 320, so as to avoid the generation of the echo when the in-vehicle speaker 220 plays the external audio signal.
In order to facilitate the in-vehicle occupant to listen to the out-vehicle audio signal played by the in-vehicle speaker 220 and to facilitate the out-vehicle occupant to listen to the in-vehicle audio signal played by the out-vehicle speaker 310, referring to fig. 2, in an embodiment, the cpu 100 includes: the audio signal power amplification module 140 is configured to perform audio signal power amplification processing on the in-vehicle audio signal, and send the in-vehicle audio signal to the out-vehicle speaker 310; and/or, the external audio signal processing module is configured to perform audio signal power amplification processing on the external audio signal, and send the external audio signal to the in-vehicle speaker 220. In one embodiment, the audio signal power amplification module 140 includes an operational amplifier circuit. And the audio signal power amplification module is used for carrying out audio signal power amplification processing on the audio signal inside the automobile and/or the audio signal outside the automobile according to the related technology.
In order to make the vehicle interior and vehicle exterior people hear both sounds better, referring to fig. 2, in an embodiment, the central processing unit 100 includes a noise reduction module 110, a voice enhancement module 120, an echo cancellation module 130, and an audio signal power amplification module 140. When audio signal and the outer audio signal transmission of car are to central processing unit 100 in the car, through carrying out multiple speech processing to audio signal and the outer audio signal of car in the car for through central processing unit 100 processing back, personnel's in the car pronunciation are more clear in the audio signal in the car of the outer speaker 310 broadcast of car, and personnel's outside the car pronunciation are more clear in the outer audio signal of the outer speaker 220 broadcast of car. In order to enable the audio signal inside the vehicle and the audio signal outside the vehicle to sequentially undergo noise reduction processing, voice enhancement processing, echo elimination processing and audio signal power amplification processing, further, the noise reduction module 110, the voice enhancement module 120, the echo elimination module 130 and the audio signal power amplification module 140 are sequentially connected, the microphone 210 inside the vehicle and the microphone 320 outside the vehicle are respectively connected with the noise reduction module 110, and the speaker 220 inside the vehicle and the speaker 310 outside the vehicle are respectively connected with the audio power amplification module.
Referring to fig. 2, in an embodiment, the in-vehicle and out-of-vehicle voice interaction system 10 further includes: and the sound detection module 400 is connected to the central processing unit 100 and is configured to detect sounds inside or outside the vehicle to trigger the in-vehicle and out-vehicle voice interaction system 10 to be turned on or off. The sound detection module 400 may trigger the in-vehicle and out-vehicle voice interaction system 10 or turn off the in-vehicle and out-vehicle voice interaction system 10 by detecting the sound of the person in the vehicle. In order to facilitate detection of sounds of people inside and outside the automobile, in the related art, the sound detection module 400 may output an inside masking signal to the inside of the automobile and/or play an outside masking signal to the outside of the automobile through a speaker, where the inside masking signal and the outside masking signal may include one or more of a square interference signal, a station interference signal, and a road interference signal. The in-vehicle masking signal is played to the inside of the vehicle to mask the environmental sound inside the vehicle, so that the in-vehicle microphone 210 obtains the in-vehicle masking signal and the out-vehicle audio signal, and the in-vehicle masking signal and the out-vehicle audio signal are output under the control of the central processing unit 100, so that the in-vehicle masking signal and the out-vehicle audio signal can be eliminated from the in-vehicle audio signal obtained by the in-vehicle microphone 210, and the sound detection module 400 can more conveniently detect and identify whether the in-vehicle masking signal contains the voice signal of the person inside the vehicle, so as to trigger the in-vehicle and out-vehicle voice interaction system 10 or close the in-vehicle and out-vehicle voice interaction system 10, namely close the in-vehicle and out-vehicle voice interaction system 10 when the voice signal of the person inside the vehicle is not detected, and open the in-vehicle and out-vehicle voice interaction system 10 when the voice signal of the person inside the vehicle is detected. Similarly, the outside masking signal is played outside the vehicle to mask the outside environmental sound, so that the outside microphone 320 acquires the outside masking signal and the inside audio signal, wherein the outside masking signal and the inside audio signal are controlled and output by the central processing unit 100, so that the outside masking signal and the inside audio signal can be eliminated from the outside audio signal acquired by the outside microphone 320, and the sound detection module 400 can more conveniently detect and identify whether the outside masking signal contains the voice signal of the outside person, so as to trigger the inside and outside voice interaction system 10 or close the inside and outside voice interaction system 10, that is, when the voice signal of the outside person cannot be detected, the inside and outside voice interaction system 10 is closed; when the voice signal of the person outside the vehicle is detected, the in-vehicle and outside-vehicle voice interaction system 10 is turned on. The speaker of the present embodiment may be a speaker independent of the speaker inside the vehicle 220 and the speaker outside the vehicle 310, and the speaker is connected to the central control unit.
Referring to fig. 3, in the application of the in-vehicle and out-of-vehicle voice interaction system, the following steps are included:
step S310, the sound detection module 400 is used for checking to judge whether sound is detected, and if no sound is detected, the step S320 is carried out; if sound is detected, step S330 is performed.
When sound is detected, it is indicated that the person inside the vehicle communicates with the person outside the vehicle, and the voice interaction system 10 inside and outside the vehicle needs to be started; when no sound is detected, it is indicated that the person inside the vehicle and the person outside the vehicle do not communicate, the in-vehicle and out-vehicle voice interaction system 10 does not need to be started.
And step S320, turning off the vehicle exterior and interior voice interaction system 10.
Step S330, the outside-vehicle voice interaction inside-outside voice interaction system 10 is started, and step S340 and step S350 are performed.
Wherein, step S340 and step S350 can be performed simultaneously or step by step.
In step S340, the in-vehicle microphone 210 acquires an out-vehicle audio signal.
In step S350, the external microphone 320 acquires an internal audio signal.
In step 360, the central processing unit 100 receives and processes the audio signal outside the vehicle and/or the audio signal inside the vehicle.
And step S361, carrying out noise reduction processing on the audio signal inside the automobile and/or the audio signal outside the automobile.
And step S362, performing voice enhancement processing on the audio signal inside the vehicle and/or the audio signal outside the vehicle.
And step 363, performing echo elimination processing on the audio signal inside the automobile and/or the audio signal outside the automobile.
And step S364, performing audio signal power amplification processing on the audio signal inside the vehicle and/or the audio signal outside the vehicle.
In step S370, the external speaker 310 plays the processed audio signal inside the vehicle.
In step S380, the in-vehicle speaker 220 plays the processed out-vehicle audio signal.
Step S370 and step 380 may be performed simultaneously or in steps.
To fully utilize the components of the vehicle, in one embodiment, the in-vehicle and out-of-vehicle voice interaction system 10 further comprises: the exterior speaker 310 is a speaker in a low speed cue sound system. Since the speaker in the low-speed warning sound system is a speaker originally configured in the automobile and can play the audio signal to the outside of the automobile, connecting the speaker in the low-speed warning sound system to the central processing unit 100 can enable the speaker in the low-speed warning sound system to play the audio signal in the automobile as the speaker 310 outside the automobile.
In one embodiment, the CPU 100, the in-vehicle microphone 210 and the in-vehicle speaker 220 are disposed in a vehicle audio-visual entertainment system, the in-vehicle microphone 210, the in-vehicle speaker 220 and the CPU 100 may be part of an in-vehicle audio-visual entertainment system. The audio-visual entertainment system can be used to play sound, that is, music can be played through the in-vehicle speaker 220, and the music can be selectively played through controlling the central processing unit 100. The audio-visual entertainment system can also be used for communication, the voice audio of people in the vehicle can be acquired through the in-vehicle microphone 210, the voice of the opposite party of communication can be played through the in-vehicle loudspeaker 220, and the in-vehicle and out-vehicle voice interaction system 10 can be controlled to start and end the communication.
In order to facilitate the in-vehicle microphone 210 to acquire the voice signal of the person inside the vehicle and to facilitate the out-vehicle microphone 320 to acquire the voice signal of the person outside the vehicle, referring to fig. 1, in an embodiment, the out-vehicle microphone 320 and the out-vehicle speaker 310 are respectively disposed at an interval outside the vehicle body; the in-vehicle microphone 210 and the in-vehicle speaker 220 are disposed at an interval inside the vehicle body, respectively. In addition, such a design can reduce the interference of the interior microphone 210 with the voice of the person inside the vehicle due to the vibration of the interior speaker 220 and the exterior audio signal played by the interior speaker 220, and reduce the interference of the exterior speaker 310 with the voice of the person outside the vehicle obtained by the exterior microphone 320 due to the vibration of the exterior speaker 310 and the interior audio signal played by the exterior speaker 310. Further, an inner baffle is disposed between the in-vehicle microphone 210 and the in-vehicle speaker 220, and an outer baffle is disposed between the out-vehicle microphone 320 and the out-vehicle speaker 310. In order to increase the distance between the speaker 220 inside the car and the speaker 220 inside the car to reduce the interference of the speaker 220 inside the car, and to increase the distance between the speaker 310 outside the car and the speaker 310 outside the car to reduce the interference of the speaker 220 inside the car, further, the microphone 210 inside the car is disposed at the head of the car, the speaker 220 inside the car is disposed at the parking space of the car, the microphone 320 outside the car is disposed at the head of the car, and the speaker 310 outside the car is disposed at the parking space of the car. Further, the sound source directions of the in-vehicle microphone 210 and the in-vehicle speaker 220 are shifted, and the sound source directions of the out-vehicle microphone 320 and the out-vehicle speaker 310 are shifted. In order to collect the voice of the persons inside the car at different positions inside the car and to collect the voice of the persons outside the car at different positions outside the car, in one embodiment, at least two in-car microphones 210 are provided, the in-car microphones 210 are disposed at different edges inside the car, and the in-car speakers 220 are disposed between the in-car microphones 210; the outer microphone 320 of car is two at least, and the outer microphone 320 of car sets up in the outer different edge of car, and the outer speaker 310 of car sets up between the outer microphone 320 of car.
To sum up, the in-vehicle and out-vehicle voice interaction system 10 of the present application, on one hand, acquires an in-vehicle audio signal through the in-vehicle microphone 210 and transmits the in-vehicle audio signal to the central processing unit 100, after the noise reduction module 110, the voice enhancement module 120, the echo cancellation module 130, and the audio signal power amplification module 140 of the central processing unit 100 perform noise reduction processing, voice enhancement processing, echo cancellation processing, and audio signal power amplification processing on the in-vehicle audio signal, the out-vehicle speaker 310 can play the in-vehicle audio signal including the in-vehicle person voice signal to the outside of the vehicle, and the voice audio of the played in-vehicle person is clear; on the other hand acquires the car exterior audio signal through setting up in car exterior microphone 320, and send the car exterior audio signal to central processing unit 100, central processing unit 100's the module 110 of making an uproar that falls, speech enhancement module 120, eliminate echo module 130 and audio signal power amplification module 140 and carry out the noise reduction to the car exterior audio signal, speech enhancement handles, eliminate after echo processing and audio signal power amplification handle, car interior speaker 220 not only can broadcast the car exterior audio signal that includes car exterior personnel's speech signal in to the car, the car exterior personnel's of broadcast voice audio is clear.
Corresponding to the embodiment of the in-vehicle and out-vehicle voice interaction system 10 implemented by the application function, the application also provides an automobile and a corresponding embodiment.
The automobile of the present application includes the in-vehicle and out-of-vehicle voice interaction system 10 of any of the above embodiments. The automobile can realize smooth communication between people outside the automobile and people inside the automobile on the premise of closing windows or doors through the in-automobile voice interaction system 10.
The aspects of the present application have been described in detail hereinabove with reference to the accompanying drawings. In the above embodiments, the descriptions of the respective embodiments have respective emphasis, and for parts that are not described in detail in a certain embodiment, reference may be made to related descriptions of other embodiments. Those skilled in the art should also appreciate that the acts and modules referred to in the specification are not necessarily required in the present application. In addition, it can be understood that the steps in the method of the embodiment of the present application may be sequentially adjusted, combined, and deleted according to actual needs, and the modules in the device of the embodiment of the present application may be combined, divided, and deleted according to actual needs.
Having described embodiments of the present application, the foregoing description is intended to be exemplary, not exhaustive, and not limited to the disclosed embodiments. Many modifications and variations will be apparent to those of ordinary skill in the art without departing from the scope and spirit of the described embodiments. The terminology used herein is chosen in order to best explain the principles of the embodiments, the practical application, or improvements made to the technology in the marketplace, or to enable others of ordinary skill in the art to understand the embodiments disclosed herein.
Claims (10)
1. The in-vehicle and out-vehicle voice interaction system is characterized by comprising: a central processing unit, an in-vehicle sound processing device and an out-vehicle sound processing device; wherein,
the sound processing device inside the vehicle and the sound processing device outside the vehicle are respectively connected with the central processing unit;
the in-vehicle sound processing device is used for acquiring in-vehicle audio signals and sending the in-vehicle audio signals to the central processing unit; receiving and playing the vehicle exterior audio signal sent by the central processing unit, wherein the vehicle exterior audio signal is acquired by the vehicle exterior sound processing device and sent to the central processing unit;
the vehicle exterior sound processing device is used for acquiring the vehicle exterior audio signal and sending the vehicle exterior audio signal to the central processing unit; and receiving and playing the in-vehicle audio signal sent by the central processing unit.
2. The in-vehicle and out-vehicle voice interaction system according to claim 1, characterized in that:
the in-vehicle sound processing device comprises an in-vehicle microphone and an in-vehicle loudspeaker, and the in-vehicle microphone and the in-vehicle loudspeaker are respectively connected with the central processing unit; the in-vehicle microphone is used for acquiring in-vehicle audio signals and sending the in-vehicle audio signals to the central processing unit; the loudspeaker in the vehicle is used for receiving and playing the audio signal outside the vehicle sent by the central processing unit; and/or
The vehicle exterior sound processing device comprises a vehicle exterior microphone and a vehicle exterior loudspeaker; the vehicle exterior microphone and the vehicle exterior loudspeaker are respectively connected with the central processing unit; the loudspeaker outside the vehicle is used for receiving and playing the audio signal inside the vehicle sent by the central processing unit; the outer microphone of the car is used for acquiring the outer audio signal of the car and sending the outer audio signal of the car to the central processing unit.
3. The in-vehicle and in-vehicle voice interaction system according to claim 2, wherein the central processing unit comprises:
the noise reduction module is used for carrying out noise reduction processing on the in-vehicle audio signal and sending the in-vehicle audio signal to the loudspeaker outside the vehicle; and/or the outside audio signal is subjected to noise reduction processing and sent to the inside loudspeaker.
4. The in-vehicle and in-vehicle voice interaction system according to claim 2, wherein the central processing unit comprises:
the voice enhancement module is used for carrying out voice enhancement processing on the in-vehicle audio signal and sending the in-vehicle audio signal to the loudspeaker outside the vehicle; and/or the voice enhancement processing is carried out on the audio signal outside the vehicle, and the audio signal outside the vehicle is sent to the loudspeaker inside the vehicle.
5. The in-vehicle and in-vehicle voice interaction system according to claim 2, wherein the central processing unit comprises:
the echo eliminating module is used for eliminating echo of the in-vehicle audio signal and sending the in-vehicle audio signal to the loudspeaker outside the vehicle; and/or, the echo elimination device is used for eliminating echoes of the audio signals outside the vehicle and sending the audio signals outside the vehicle to the loudspeaker inside the vehicle.
6. The in-vehicle and in-vehicle voice interaction system according to claim 2, wherein the central processing unit comprises:
the audio signal power amplification module is used for carrying out audio signal power amplification processing on the in-vehicle audio signal and sending the in-vehicle audio signal to the loudspeaker outside the vehicle; and/or, the audio signal power amplification processing is carried out on the audio signal outside the vehicle, and the audio signal outside the vehicle is sent to the loudspeaker inside the vehicle.
7. The in-vehicle and out-vehicle voice interaction system of claim 1, further comprising:
and the sound detection module is connected with the central processing unit and is used for detecting the sound inside or outside the vehicle so as to trigger the system to be started or closed.
8. The in-vehicle and out-vehicle voice interaction system of claim 2, further comprising:
the loudspeaker outside the vehicle is a loudspeaker in a low-speed prompt sound system; and/or the presence of a gas in the gas,
the central processing unit, the in-vehicle microphone and the in-vehicle loudspeaker are arranged in the vehicle audio-video entertainment system.
9. The in-vehicle and out-vehicle voice interaction system according to claim 1, wherein the central processing unit comprises a noise reduction module, a voice enhancement module, an echo cancellation module and an audio signal power amplification module which are connected in parallel.
10. An automobile, characterized in that: comprising the in-vehicle and out-of-vehicle voice interaction system of any of claims 1 to 9.
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| CN202121093090.5U CN215815174U (en) | 2021-05-20 | 2021-05-20 | Voice interaction system inside and outside vehicle and vehicle |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114898524A (en) * | 2022-04-01 | 2022-08-12 | 浙江极氪智能科技有限公司 | Control system and method for voice interaction between vehicle owner and pedestrian |
| WO2024045634A1 (en) * | 2022-09-01 | 2024-03-07 | 中国第一汽车股份有限公司 | Vehicle interior-exterior conversation method and system based on vehicle-mounted entertainment system, and vehicle |
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2021
- 2021-05-20 CN CN202121093090.5U patent/CN215815174U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114898524A (en) * | 2022-04-01 | 2022-08-12 | 浙江极氪智能科技有限公司 | Control system and method for voice interaction between vehicle owner and pedestrian |
| WO2024045634A1 (en) * | 2022-09-01 | 2024-03-07 | 中国第一汽车股份有限公司 | Vehicle interior-exterior conversation method and system based on vehicle-mounted entertainment system, and vehicle |
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