WO2023138563A1

WO2023138563A1 - Volume adjustment method and apparatus, and automobile

Info

Publication number: WO2023138563A1
Application number: PCT/CN2023/072553
Authority: WO
Inventors: 刘海明; 刘静
Original assignee: 长城汽车股份有限公司
Priority date: 2022-01-24
Filing date: 2023-01-17
Publication date: 2023-07-27
Also published as: CN115107674A

Abstract

A volume adjustment method and device and an automobile. The method comprises: obtaining current vehicle features including an in-vehicle environment feature and a vehicle control state feature; according to the current vehicle features, determining a current in-vehicle scene mode; from among pre-stored corresponding relationships between in-vehicle scene modes and audio playing volume control strategies, determining a target audio playing volume control strategy corresponding to the current in-vehicle scene mode; and according to the target audio playing volume control strategy, controlling a vehicle-mounted audio device. Automatic control of the playing volume of the vehicle-mounted audio device in different in-vehicle scene modes is achieved, manual operation by the driver on volume control etc. in the driving process is reduced, the degree of concentration of the driver for driving the vehicle is improved, and the potential safety hazard of driving is reduced.

Description

A volume adjustment method, device and vehicle

This application claims the priority of the domestic application submitted to the China Patent Office on January 24, 2022, with the application number 202210081693.6, and the title of the invention is "A Volume Adjustment Method, Device, and Automobile", the entire content of which is incorporated in this application by reference.

technical field

The present application relates to the technical field of vehicle environment recognition, and more specifically, to a volume adjustment method, device and vehicle.

Background technique

As the integrated functions of the in-vehicle system become more and more intelligent and entertaining, there are more and more scenes where users play music or other multimedia through the in-vehicle system. Playing music or other multimedia through the in-vehicle system can not only provide entertainment for the driver during the long-term driving, but also shield the noise inside and outside the car to a certain extent, thereby improving the driver's concentration in driving the vehicle.

In the prior art, in some scenarios, such as the occupants in the car resting, answering and calling, etc., it is necessary to control the volume through the volume adjustment function in the car. In related technologies, the occupants in the vehicle are required to manually adjust the volume of the vehicle system for the driver. However, manually controlling the volume will inevitably increase the burden on the driver. Not only is the operation cumbersome, but it also reduces the driver's concentration in driving the vehicle, thereby increasing the driving safety hazard to a certain extent.

Contents of the invention

In view of this, the present application discloses a volume adjustment method, device, and automobile, so as to realize the automatic adjustment of the playing volume of the on-board audio equipment under different in-vehicle scene modes, reduce the driver's manual operation of volume control during driving, improve the driver's concentration in driving the vehicle, and reduce driving safety hazards.

A volume adjustment method, comprising:

Acquiring the current vehicle features, the current vehicle features include: in-vehicle environment features and vehicle control status features;

determining the current in-vehicle scene mode according to the current vehicle characteristics;

From the corresponding relationship between the pre-stored in-vehicle scene mode and the audio playback volume control strategy, determine the target audio playback volume control strategy corresponding to the current in-vehicle scene mode;

The on-vehicle audio equipment is regulated according to the target audio playback volume regulation strategy.

Optionally, the acquisition of current vehicle features includes:

Acquiring an in-vehicle environment image, and performing feature extraction on the in-vehicle environment image to obtain vehicle image features;

Acquiring the in-vehicle voice, and performing feature extraction on the in-vehicle voice to obtain the in-vehicle voice features;

determining the vehicle image feature and/or the in-vehicle voice feature as the in-vehicle environment feature;

Acquire the vehicle control state, and perform feature extraction on the vehicle control state to obtain the vehicle control state features.

Optionally, the acquiring the vehicle control state, and performing feature extraction on the vehicle control state to obtain the characteristics of the vehicle control state include:

Obtaining the volume of audio playback in the car, and performing feature extraction on the volume of audio playback in the car, to obtain the volume feature of the car control;

Obtaining the opening state of the vehicle window, and performing feature extraction on the opening state of the vehicle window, to obtain the characteristics of the vehicle control window;

The car control status feature includes: any one or both of the car control volume feature and the car control window feature.

Optionally, the determination of the target audio playback volume control strategy corresponding to the current in-vehicle scene mode includes:

When the current in-vehicle scene mode is a resting scene for occupants in the car, the audio playback volume in the occupant rest area is reduced to a first audio playback value.

Optionally, also include:

When the current in-vehicle scene mode is a preset volume increase scene, increase the audio playback volume of the occupant rest area from the first audio playback value to the volume corresponding to the normal state in a crescendo manner;

Wherein, the predicted volume increase mode is: occupants in the vehicle wake up or the remaining distance between the current position of the vehicle and the destination is a preset distance.

When the current scene mode in the car is the scene where the occupant in the car makes a phone call, the audio playback volume in the car is reduced to the second audio playback value;

When it is detected that the occupants in the car stop making or receiving calls, the audio playback volume in the car is gradually increased from the second audio playback value to the volume corresponding to the normal state.

When the current in-vehicle scene mode is the occupant communication scene in the car, the volume dodging function is turned on;

When the communication between the occupants in the car ends, the volume dodging function is turned off, and the audio playback volume in the car is restored to the volume corresponding to the normal state;

Wherein, the occupant communication scene in the vehicle is: detection of human voice and action interaction between occupants.

When the current scene mode in the car is the communication scene of people inside and outside the car, the audio playback volume in the car is reduced to the third audio playback value;

When the communication between people inside and outside the car ends, the audio playback volume in the car is restored to the volume corresponding to the normal state from the third audio playback value;

Wherein, the communication scene between people inside and outside the vehicle is: the audio is played in the vehicle and the volume of the audio playback is greater than the preset audio volume, the vehicle speed is reduced to 0, the vehicle side windows are opened, and the line of sight or the direction of the head of the occupant in the vehicle is directed towards the open vehicle side window;

A volume adjustment device, comprising:

An acquisition unit, configured to acquire current vehicle features, the current vehicle features include: in-vehicle environment features and vehicle control state features;

A scene mode determination unit, configured to determine the current in-vehicle scene mode according to the current vehicle characteristics;

A volume control strategy determination unit, configured to determine the target audio corresponding to the current in-vehicle scene mode from the pre-stored correspondence between the in-vehicle scene mode and the audio playback volume control strategy Play volume control strategy;

The regulating unit is used to regulate the vehicle-mounted audio equipment according to the target audio playing volume regulation strategy.

An automobile includes a control device, the control device includes a memory, a processor, and a computer program stored in the memory and operable on the processor, and the processor implements the steps of the above method when executing the computer program.

It can be known from the above-mentioned technical solution that the present application discloses a volume adjustment method, device, and car, which obtain current vehicle characteristics including in-vehicle environment characteristics and vehicle control state characteristics, determine the current in-vehicle scene mode according to the current vehicle features, determine the target audio playback volume control strategy corresponding to the current in-vehicle scene mode from the corresponding relationship between the pre-stored in-vehicle scene mode and the audio playback volume control strategy, and regulate the car audio equipment according to the target audio playback volume control strategy. Therefore, the present application realizes the automatic regulation of the playing volume of the vehicle-mounted audio equipment under different in-vehicle scene modes, reduces the driver's manual operation of volume control and the like during driving, improves the driver's concentration in driving the vehicle, and reduces driving safety hazards.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the accompanying drawings that are required in the description of the embodiments or prior art. Obviously, the accompanying drawings in the following description are only the embodiments of the present application. For those of ordinary skill in the art, other drawings can also be obtained according to the disclosed drawings without creative work.

FIG. 1 is a flow chart of a volume adjustment method disclosed in an embodiment of the present application;

FIG. 2 is a flow chart of a method for obtaining current vehicle characteristics disclosed in an embodiment of the present application;

FIG. 3 is a schematic structural diagram of a volume adjustment device disclosed in an embodiment of the present application;

FIG. 4 is a schematic structural diagram of a control device in an automobile disclosed in an embodiment of the present application.

Detailed ways

The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application. rather than all examples. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of this application.

The embodiment of the present application discloses a volume adjustment method, device, and car, which acquire current vehicle features including in-vehicle environment features and vehicle control state features, determine the current in-vehicle scene mode according to the current vehicle features, determine a target audio playback volume control strategy corresponding to the current in-vehicle scene mode from the corresponding relationship between the pre-stored in-vehicle scene mode and the audio playback volume control strategy, and regulate the on-board audio equipment according to the target audio playback volume control strategy. Therefore, the present application realizes the automatic regulation of the playing volume of the vehicle-mounted audio equipment under different in-vehicle scene modes, reduces the driver's manual operation of volume control and the like during driving, improves the driver's concentration in driving the vehicle, and reduces driving safety hazards.

Referring to Fig. 1, a flow chart of a volume adjustment method disclosed in an embodiment of the present application, the method includes:

Step S101, acquiring the current vehicle features;

Wherein, the current vehicle characteristics include: environment characteristics inside the vehicle and vehicle control state characteristics.

In practical applications, the method used to obtain the characteristics of the environment inside the vehicle may be different from the method used to obtain the characteristics of the vehicle control state.

The vehicle control status feature may be a status feature of the vehicle internal control component.

Step S102, determining the current in-vehicle scene mode according to the current vehicle characteristics;

The current in-vehicle scene mode may be: a scene of occupants in the car resting, a scene of occupants answering and calling in the car, a scene of personnel communication, and the like.

Step S103, from the pre-stored correspondence between the in-vehicle scene mode and the audio playback volume control strategy, determine the target audio playback volume control strategy corresponding to the current in-vehicle scene mode;

Different in-vehicle scene modes have different requirements for audio playback volume, therefore, this application pre-calibrates the audio playback volume control strategies corresponding to different in-vehicle scene modes.

Step S104, adjust the vehicle audio equipment according to the target audio volume adjustment strategy.

In practical applications, the volume control instruction can be generated according to the target audio playback volume control policy, and the audio control instruction can be sent to the vehicle audio device, so that the vehicle audio device can control the audio playback volume based on the volume control command.

In summary, the present application discloses a method for volume adjustment, which acquires And the current vehicle characteristics of the vehicle control state characteristics, determine the current in-vehicle scene mode according to the current vehicle characteristics, determine the target audio playback volume control strategy corresponding to the current in-vehicle scene mode from the corresponding relationship between the pre-stored in-vehicle scene mode and the audio playback volume control strategy, and regulate the car audio equipment according to the target audio playback volume control strategy. Therefore, the present application realizes the automatic regulation of the playing volume of the vehicle-mounted audio equipment under different in-vehicle scene modes, reduces the driver's manual operation of volume control and the like during driving, improves the driver's concentration in driving the vehicle, and reduces driving safety hazards.

In order to further optimize the above embodiment, refer to FIG. 2 , a flow chart of a method for obtaining current vehicle characteristics disclosed in the embodiment of the present application, the method includes:

Step S201. Acquiring the in-vehicle environment image, and performing feature extraction on the in-vehicle environment image to obtain vehicle image features;

In practical applications, the environment images in the car can be collected by the camera in the car.

When performing feature extraction on in-vehicle environment images, a pre-trained image feature extraction model can be used. Wherein, the image feature extraction model may be an image feature extraction model of a neural network structure, and the specific training process of the image feature extraction model may refer to existing mature solutions, and will not be repeated here.

Step S202, acquiring the in-vehicle voice, and performing feature extraction on the in-vehicle voice to obtain in-vehicle voice features;

The in-vehicle voice in this embodiment is the in-vehicle input voice. In practical applications, the in-vehicle voice can be collected through the microphone installed in the vehicle. The in-vehicle voice feature is the voice spoken by the occupants in the vehicle.

In practical applications, a preset audio feature extraction method can be used to extract features of the in-vehicle voice.

Step S203, determining the vehicle image feature and/or the in-vehicle voice feature as the in-vehicle environment feature;

Step S204, acquiring the vehicle control state, and performing feature extraction on the vehicle control state to obtain the vehicle control state features.

Concretely, (1) obtain the audio playback volume in the car, and carry out feature extraction to the audio playback volume in the car, and obtain the car control volume feature;

In practical applications, the volume characteristics of car control can be represented by numerical values. For example, when the audio in the car is played When the playback volume is in the middle, the car control volume feature can be 0.5.

Of course, the vehicle control volume feature can also be expressed in other forms, depending on actual needs, which are not limited in this application.

(2) Obtain the open state of the vehicle window, and perform feature extraction on the open state of the vehicle window to obtain the characteristics of the vehicle control window;

The vehicle control feature in this embodiment refers to whether the vehicle window is in an open state or a closed state.

The car control status feature includes: any one or both of the car control volume feature and the car window feature.

In practical applications, different in-vehicle scene modes may focus on different car control status features. For example, the car control volume feature is more concerned with the phone call scene, while the car control window feature is more concerned with the vehicle control scene in the in-vehicle communication scene.

In order to facilitate the understanding of the volume adjustment method disclosed in this application, this application provides several in-vehicle scene modes, and provides a corresponding audio playback volume control strategy for each in-vehicle scene mode, that is, step S103 specifically includes:

(1) The rest scene of the occupants in the car

When the current in-vehicle scene mode is the occupant resting scene in the car, the audio playback volume in the occupant rest area is reduced to a first audio playback value.

The value of the first audio playback value in this embodiment depends on actual needs, and the preferred value is 0.

During the driving of the vehicle, when the on-board audio equipment plays audio, for example, playing music and navigation, the status of the co-driver and the rear passenger is recognized according to the in-vehicle environment image collected by the camera in the car, and when the occupant is resting in the car, the audio playback volume in the occupant rest area is reduced to the first audio playback value.

The occupant rest area in this embodiment includes: the co-pilot area and the rear row area. When only the rear passenger is resting, at this time, the audio playback volume in the rear area can only be reduced to the first audio playback value; when both the co-pilot and the rear passenger are resting, except for the audio playback on the driver's side audio, the audio playback volume in other positions is reduced to the first audio playback value. In practical applications, it is also possible to Sleep aid by playing white noise.

When the vehicle is equipped with headrest audio, audio can be played through the headrest audio on the driver's side, and the volume of audio playback in other positions is reduced to the first audio playback value.

The in-vehicle camera in this embodiment includes: an OMS (Occupant Monitoring Sensor, occupant monitoring sensor) camera and a DMS (Driver Monitoring System, driver monitoring system) camera.

When the current in-vehicle scene mode is a preset volume increase scene, the audio playback volume of the occupant rest area is increased from the first audio playback value to the volume corresponding to the normal state in a crescendo manner;

Specifically, when it is recognized that the occupant in the vehicle is awake according to the in-vehicle environment image collected by the in-vehicle camera, after the occupant wakes up for a preset period of time, such as 1 minute, the first audio playback value is gradually increased to the volume corresponding to the normal state.

The normal state in this embodiment refers to the state when none of the occupants in the car is resting.

When it is determined according to the navigation route that the remaining distance from the current position of the vehicle to the destination is the preset distance, the first audio playback value is gradually increased to the volume corresponding to the normal state, so that passengers wake up in advance and prepare to get off when the vehicle reaches the destination.

Wherein, the value of the preset distance is determined according to actual needs, which is not limited in this application.

(2) Situation of passengers answering and calling in the car

When the current scene mode in the car is a scene where the occupants in the car answer the phone, the audio playback volume in the car is reduced to the second audio playback value;

Wherein, the value of the second audio playback value and the value of the first audio playback value may be the same or different, and the specific value is determined according to actual needs, which is not limited in this application.

In practical applications, when the in-car signal detector detects that there is a phone signal in the car, it will lower the volume of the audio playback in the car, and can also control the flashing of the ambient light in the car to remind the occupants in the car that there is a phone call Signal access.

Determine whether the occupant in the vehicle answers the phone according to the in-vehicle environment image collected by the in-vehicle camera. When the occupant in the vehicle answers the call, continuously reduce the volume of the audio playback in the vehicle to the second audio playback value. When it is detected that there is a telephone signal in the car, but the occupant in the car does not answer the call, the reduced audio playback volume in the car can be restored to the volume corresponding to the normal state after a preset period of time.

When the occupants in the car are making calls, the environment images in the car are collected in real time. When the occupants in the car are determined to stop answering and calling according to the environment images in the car collected by the camera in the car, the audio playback volume can be controlled to start playing.

(3) Passenger communication scene in the car

When the current in-vehicle scene mode is the occupant communication scene in the car, turn on the volume ducking function;

The volume dodging function in this embodiment means that the sound card can automatically adjust the volume of the background music when people are speaking or not speaking. The volume ducking function has a fade-in and fade-out effect.

Specifically, when the vehicle-mounted audio equipment plays audio, if the volume of the audio is louder, the occupants in the vehicle need to speak loudly or even shout when communicating.

This application detects the human voice in real time according to the microphone in the car and detects the interaction between the occupants in the car in real time according to the camera in the car when the in-vehicle audio device is playing audio. When the communication between the occupants in the car ends, for example, when no human voice is detected within the preset time period, the volume ducking function is turned off, and the volume of the audio playback in the car is restored to the volume corresponding to the normal state.

(4) Personnel communication inside and outside the vehicle

When the current scene mode in the car is the communication scene between people inside and outside the car, the audio playback volume in the car is reduced to the third audio playback value;

In this embodiment, when the volume of the audio played in the car is higher than the preset volume, the audio played in the car will inevitably affect the communication between people inside and outside the car. Therefore, when the present application determines that the current scene mode in the car is a communication scene between people inside and outside the car, the volume of the audio played in the car is reduced to the third audio playback value to ensure smooth communication between people inside and outside the car.

Wherein, the value of the third audio playback value is determined according to actual needs, which is not limited in this application.

Corresponding to the foregoing method embodiments, the present application also discloses a volume adjustment device.

Referring to Fig. 3, a schematic structural diagram of a volume adjustment device disclosed in an embodiment of the present application, the device includes:

An acquisition unit 301, configured to acquire current vehicle features, the current vehicle features include: vehicle interior environment features and vehicle control state features;

A scene mode determining unit 302, configured to determine the current in-vehicle scene mode according to the current vehicle characteristics;

The volume control strategy determining unit 303 is used to determine the target audio playback volume control strategy corresponding to the current in-vehicle scene mode from the pre-stored correspondence between the in-vehicle scene mode and the audio playback volume control strategy;

The regulating unit 304 is configured to regulate the vehicle-mounted audio equipment according to the target audio playing volume regulation strategy.

To sum up, the present application discloses a volume adjustment device, which acquires the current vehicle characteristics including the characteristics of the in-vehicle environment and the characteristics of the vehicle control state, determines the current in-vehicle scene mode according to the current vehicle features, and determines the target audio playback volume control strategy corresponding to the current in-vehicle scene mode from the corresponding relationship between the pre-stored in-vehicle scene mode and the audio playback volume control strategy, and regulates the car audio equipment according to the target audio playback volume control strategy. Therefore, the present application realizes the automatic regulation of the playing volume of the vehicle-mounted audio equipment under different in-vehicle scene modes, reduces the driver's manual operation of volume control and the like during driving, improves the driver's concentration in driving the vehicle, and reduces driving safety hazards.

In order to further optimize the above embodiment, the obtaining unit 301 is specifically configured to:

In order to further optimize the above embodiment, the obtaining unit 301 is specifically further configured to:

In order to further optimize the above embodiment, the volume control policy determination unit 303 is specifically used to:

The volume control policy determination unit 303 is also specifically configured to:

Wherein, the communication scene of people inside and outside the car is: the audio is played in the car and the volume of the audio is loud At the preset audio volume, the vehicle speed is reduced to 0, the side windows of the vehicle are opened, and the line of sight or the direction of the head of the occupant in the vehicle is toward the opened side window of the vehicle; or, the vehicle speed is reduced to 0, the door is opened, and the line of sight or the direction of the head of the occupant in the vehicle is toward the opened door or gets out of the vehicle.

It should be noted that, for the specific working principle of each component in the device embodiment, please refer to the corresponding part of the method embodiment, which will not be repeated here.

The present application also discloses an automobile, which includes a control device, as shown in FIG. 4 , the control device includes a processor 1, a memory 2, and a computer program stored in the memory 2 and operable on the processor.

Wherein, the processor 1 and the memory 2 communicate with each other through the communication bus 3 .

The processor 1 may be a central processing unit CPU, or an ASIC (Application Specific Integrated Circuit), or one or more integrated circuits configured to implement the embodiments of the present application.

The memory 2 may include a high-speed RAM memory, and may also include a non-volatile memory (non-volatile memory), such as at least one magnetic disk memory.

When the processor 1 executes the computer program, the following functions are realized:

Acquiring the current vehicle features, the current vehicle features include: in-vehicle environment features and vehicle control state features;

To sum up, the present application discloses a car. The control device in the car obtains the current vehicle characteristics including the characteristics of the environment in the car and the characteristics of the vehicle control state, determines the current scene mode in the car according to the characteristics of the current vehicle, determines the target audio playback volume control strategy corresponding to the current scene mode in the car from the corresponding relationship between the scene mode in the car and the audio playback volume control strategy stored in advance, and regulates the car audio equipment according to the target audio playback volume control strategy. Therefore, the present application realizes the automatic adjustment and control of the play volume of the vehicle-mounted audio equipment under different in-vehicle scene modes, reducing the The driver's manual operation of volume control and the like during driving is eliminated, which improves the driver's concentration in driving the vehicle and reduces driving safety hazards.

The present application also discloses a computer-readable storage medium. The computer-readable storage medium stores a computer program. The computer program includes program instructions. When the program instructions are executed by a processor, all or part of the steps in the method provided by the above-mentioned embodiments are implemented. These steps can also be accomplished by controlling instruction-related hardware through a computer program. A computer program includes computer program code, which may be in the form of source code, object code, executable file, or some intermediate form, etc. Computer-readable media may include: any entity or device capable of carrying computer program code, recording media, U disk, removable hard disk, magnetic disk, optical disk, computer memory, read-only memory (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), electrical carrier signals, telecommunication signals, and software distribution media, etc. It should be noted that the content contained in the computer readable medium can be appropriately increased or decreased according to the requirements of legislation and patent practice in the jurisdiction. For example, in some jurisdictions, computer readable media exclude electrical carrier signals and telecommunication signals under legislation and patent practice.

The computer-readable storage medium may be the aforementioned internal storage unit of the automobile, such as the hard disk or memory of the vehicle controller of the automobile. The computer-readable storage medium can also be an external storage device of the vehicle controller, such as a plug-in hard disk equipped on the vehicle controller, a smart memory card (Smart Media Card, SMC), a secure digital (Secure Digital, SD) card, a flash memory card (Flash Card) and the like. Further, the computer-readable storage medium may also include both an internal storage unit of the vehicle controller and an external storage device. The computer-readable storage medium is used to store computer programs and other programs and data required by the vehicle controller. The computer-readable storage medium can also be used to temporarily store data that has been output or will be output.

Finally, it should also be noted that in this document, relational terms such as first and second etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the term "comprises", "comprises" or any other variation thereof is intended to cover a non-exclusive inclusion such that a process, method, article or apparatus comprising a set of elements includes not only those elements but also other elements not expressly listed or which are inherent in such a process, method, article or apparatus. Without further limitations, an element defined by the phrase "comprising a..." does not exclude a process, method, article, or There are additional identical elements present in the device.

Each embodiment in this specification is described in a progressive manner, each embodiment focuses on the difference from other embodiments, and the same and similar parts of each embodiment can be referred to each other.

The above description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the application. Therefore, the present application will not be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

A volume adjustment method, characterized in that, comprising:

Acquiring the current vehicle features, the current vehicle features include: in-vehicle environment features and vehicle control state features;

determining the current in-vehicle scene mode according to the current vehicle characteristics;

From the corresponding relationship between the pre-stored in-vehicle scene mode and the audio playback volume control strategy, determine the target audio playback volume control strategy corresponding to the current in-vehicle scene mode;

The on-vehicle audio equipment is regulated according to the target audio playback volume regulation strategy.
The volume adjustment method according to claim 1, wherein said acquiring current vehicle characteristics comprises:

Acquiring an in-vehicle environment image, and performing feature extraction on the in-vehicle environment image to obtain vehicle image features;

Acquiring the in-vehicle voice, and performing feature extraction on the in-vehicle voice to obtain the in-vehicle voice features;

determining the vehicle image feature and/or the in-vehicle voice feature as the in-vehicle environment feature;

Acquire the vehicle control state, and perform feature extraction on the vehicle control state to obtain the vehicle control state features.
The volume adjustment method according to claim 2, wherein the acquiring the vehicle control state, and performing feature extraction on the vehicle control state to obtain the characteristics of the vehicle control state include:

Obtaining the volume of audio playback in the car, and performing feature extraction on the volume of audio playback in the car, to obtain the volume feature of the car control;

Obtaining the opening state of the vehicle window, and performing feature extraction on the opening state of the vehicle window, to obtain the characteristics of the vehicle control window;

The car control status feature includes: any one or both of the car control volume feature and the car control window feature.
The volume adjustment method according to claim 1, wherein said determination of a target audio playback volume control strategy corresponding to said current in-vehicle scene mode comprises:

When the current scene mode in the car is a rest scene for the occupants in the car, the occupant rest area will be The audio playback volume is reduced to the first audio playback value.
The volume adjustment method according to claim 4, further comprising:

When the current in-vehicle scene mode is a preset volume increase scene, increase the audio playback volume of the occupant rest area from the first audio playback value to the volume corresponding to the normal state in a crescendo manner;

Wherein, the predicted volume increase mode is: occupants in the vehicle wake up or the remaining distance between the current position of the vehicle and the destination is a preset distance.
The volume adjustment method according to claim 1, wherein said determination of a target audio playback volume control strategy corresponding to said current in-vehicle scene mode comprises:

When the current scene mode in the car is the scene where the occupant in the car makes a phone call, the audio playback volume in the car is reduced to the second audio playback value;

When it is detected that the occupants in the car stop making or receiving calls, the audio playback volume in the car is gradually increased from the second audio playback value to the volume corresponding to the normal state.
The volume adjustment method according to claim 1, wherein said determination of a target audio playback volume control strategy corresponding to said current in-vehicle scene mode comprises:

When the current in-vehicle scene mode is the occupant communication scene in the car, the volume dodging function is turned on;

When the communication between the occupants in the car ends, the volume dodging function is turned off, and the audio playback volume in the car is restored to the volume corresponding to the normal state;

Wherein, the occupant communication scene in the vehicle is: detection of human voice and action interaction between occupants.
The volume adjustment method according to claim 1, wherein said determination of a target audio playback volume control strategy corresponding to said current in-vehicle scene mode comprises:

When the current scene mode in the car is the communication scene of people inside and outside the car, the audio playback volume in the car is reduced to the third audio playback value;

When the communication between people inside and outside the car ends, the audio playback volume in the car is restored to the volume corresponding to the normal state from the third audio playback value;

Wherein, the communication scene between people inside and outside the vehicle is: the audio is played in the vehicle and the volume of the audio playback is greater than the preset audio volume, the vehicle speed is reduced to 0, the vehicle side windows are opened, and the line of sight or the direction of the head of the occupant in the vehicle is directed towards the open vehicle side window;
A volume adjustment device, characterized in that it comprises:

An acquisition unit, configured to acquire current vehicle features, the current vehicle features include: in-vehicle environment features and vehicle control state features;

A scene mode determination unit, configured to determine the current in-vehicle scene mode according to the current vehicle characteristics;

A volume control strategy determination unit, configured to determine a target audio playback volume control strategy corresponding to the current in-vehicle scene mode from the pre-stored correspondence between the in-vehicle scene mode and the audio playback volume control strategy;

The regulating unit is used to regulate the vehicle-mounted audio equipment according to the target audio playing volume regulation strategy.
An automobile, comprising a control device, the control device comprising a memory, a processor, and a computer program stored in the memory and operable on the processor, characterized in that, when the processor executes the computer program, the steps of the method described in any one of claims 1-8 above are realized.
A computer-readable storage medium storing a computer program, characterized in that, when the computer program is executed by a processor, the steps of the method according to any one of claims 1-8 are implemented.