CN114475423B - Audio play control method and device and computer storage medium - Google Patents

Audio play control method and device and computer storage medium Download PDF

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Publication number
CN114475423B
CN114475423B CN202210110922.2A CN202210110922A CN114475423B CN 114475423 B CN114475423 B CN 114475423B CN 202210110922 A CN202210110922 A CN 202210110922A CN 114475423 B CN114475423 B CN 114475423B
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Prior art keywords
audio
automobile
audio information
playing
audio signal
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CN202210110922.2A
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CN114475423A (en
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陈林
陈晨
姜娟
强亚芳
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Chery Automobile Co Ltd
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Chery Automobile Co Ltd
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
    • B60Q5/00—Arrangement or adaptation of acoustic signal devices
    • B60Q5/005—Arrangement or adaptation of acoustic signal devices automatically actuated
    • B60Q5/008—Arrangement or adaptation of acoustic signal devices automatically actuated for signaling silent vehicles, e.g. for warning that a hybrid or electric vehicle is approaching
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
    • B60Q11/00—Arrangement of monitoring devices for devices provided for in groups B60Q1/00 - B60Q9/00
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R16/00—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for
    • B60R16/02—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements
    • B60R16/023—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements for transmission of signals between vehicle parts or subsystems
    • B60R16/0231—Circuits relating to the driving or the functioning of the vehicle

Abstract

The embodiment of the application discloses a method and a device for controlling audio playing and a computer storage medium, belonging to the technical field of vehicle engineering. The method comprises the following steps: acquiring the running speed of the automobile and an environment image of the current environment of the automobile through an audio host of the automobile, wherein an acoustic warning system AVAS system is integrated in the audio host and is used for realizing an AVAS pedestrian prompt function of the automobile; under the condition that the running speed meets the audio playing condition and a target object exists in the environment image, corresponding target audio information is acquired based on the running speed and the type of the target object; and playing the audio through at least one external loudspeaker of the automobile based on the target audio information. According to the embodiment of the application, the AVAS system is integrated in the sound host, and the AVAS pedestrian prompting function of the automobile is realized through the AVAS system, so that corresponding control hardware is not required to be additionally installed, and the production cost of the whole automobile is reduced.

Description

Audio play control method and device and computer storage medium
Technical Field
The embodiment of the application relates to the technical field of vehicle engineering, in particular to a method and a device for controlling audio playing and a computer storage medium.
Background
With the development of automobile technology, the performance of automobiles is significantly improved, for example, the noise generated by electric, hybrid power and fuel cell automobiles during running is smaller and smaller. However, because the noise of the automobile is too small, the automobile is almost in a quiet state when running, and when the automobile approaches a pedestrian, the pedestrian cannot perceive the approach of the automobile, and the automobile cannot be avoided in time, so that the safety of the pedestrian is threatened. Therefore, in order to facilitate pedestrians to perceive the approach of the automobile, a playing control method of the audio is needed.
Disclosure of Invention
The embodiment of the application provides a method and a device for controlling audio playing and a computer storage medium, which can be used for solving the problem that the production cost of a whole car is increased for realizing an AVAS pedestrian reminding function in the related art. The technical scheme is as follows:
in one aspect, a method for controlling playing of audio is provided, the method comprising:
acquiring the running speed of an automobile and an environment image of the current environment of the automobile through an audio host of the automobile, wherein an acoustic warning system AVAS system is integrated in the audio host, and the AVAS system is used for realizing an AVAS pedestrian prompting function of the automobile;
Under the condition that the running speed meets audio playing conditions and a target object exists in the environment image, corresponding target audio information is obtained according to the running speed and the type of the target object, wherein the target object is an object which is located in the running direction of the automobile and has life;
and playing the audio through at least one external loudspeaker of the automobile based on the target audio information.
In some embodiments, the acquiring the corresponding target audio information based on the travel speed and the type of the target object includes:
in the case that the type of the target object includes a human and does not include a non-human, acquiring corresponding first audio information based on the driving speed, and determining the first audio information as the target audio information, wherein the first audio information includes at least one audio signal;
in the case that the type of the target object includes a non-human and does not include a human, acquiring corresponding second audio information based on the traveling speed, and determining the second audio information as the target audio information, wherein the second audio information includes at least one audio signal for dispersing the non-human;
In the case where human and non-human are included in the type of the target object, the first audio information and the second audio information are acquired based on the travel speed, and the first audio information and the second audio information are determined as the target audio information.
In some embodiments, the target audio information includes at least one audio signal therein;
based on the target audio information, performing audio playing through at least one external speaker of the automobile, including:
playing the at least one audio signal through the at least one speaker according to the number of the at least one audio signal when the number of the at least one audio signal is smaller than or equal to the number of the at least one speaker;
selecting the same audio signals as the at least one speaker from the at least one audio signal according to the priority order of the at least one audio signal under the condition that the number of the at least one audio signal is larger than the number of the at least one speaker, and playing the selected audio signals through the at least one speaker; or, mixing the at least one audio signal, so that the number of the at least one audio signal after mixing is smaller than or equal to the number of the at least one loudspeaker, and playing the at least one audio signal after mixing through the at least one loudspeaker.
In some embodiments, before determining, by the AVAS system, that the running speed meets an audio playing condition and that a target object exists in the environment image, the method further includes, before acquiring corresponding target audio information based on the running speed and the type of the target object:
when the AVAS system determines that the running speed is out of a specified running speed range, determining that the running speed does not meet the audio playing condition;
and when the running speed is determined to be within the specified running speed range by the AVAS system, determining that the running speed meets the audio playing condition.
In some embodiments, the target audio information includes at least one audio signal, an audio gain corresponding to the at least one audio signal, and a smoothness parameter corresponding to the at least one audio signal;
based on the target audio information, performing audio playing through at least one external speaker of the automobile, including:
processing the at least one audio signal based on audio gain and smoothness parameters corresponding to the at least one audio signal;
And playing the processed at least one audio signal through at least one loudspeaker arranged outside the automobile.
In some embodiments, before the playing of the processed at least one audio signal by the at least one speaker external to the automobile, the method further includes:
optimizing the processed at least one audio signal, wherein the optimizing comprises at least one of volume adjustment, audio compensation, sound wave separation and audio restoration;
correspondingly, the playing of the processed at least one audio signal through the at least one speaker arranged outside the automobile comprises the following steps:
and playing the optimized at least one audio signal through at least one external loudspeaker of the automobile.
In some embodiments, after the driving speed of the automobile and the environmental image of the current environment of the automobile are obtained by the host machine of the automobile, the method further includes:
detecting the audio playing condition of a speaker in the automobile of the automobile under the condition that the running speed meets the audio playing condition and the target object exists in the environment image through the AVAS system;
when the in-vehicle loudspeaker is in an audio playing state, acquiring in-vehicle audio information, wherein the in-vehicle audio information is the audio information of the in-vehicle loudspeaker for audio playing currently;
And playing the audio through at least one external loudspeaker of the automobile based on the audio information in the automobile.
In some embodiments, the method further comprises:
when receiving function update data which is sent by third-party equipment and is used for updating the AVAS system, carrying out authority verification on the function update data;
and updating the AVAS system based on the function update data after the function update data passes the authority verification.
In another aspect, there is provided an audio play control apparatus, the apparatus including:
the system comprises a first acquisition module, a second acquisition module and a third acquisition module, wherein the first acquisition module is used for acquiring the running speed of an automobile and an environment image of the current environment of the automobile through an audio host of the automobile, an acoustic warning system (AVAS) system is integrated in the audio host, and the AVAS system is used for realizing an AVAS pedestrian prompt function of the automobile;
the second acquisition module is used for acquiring corresponding target audio information based on the running speed and the type of the target object when the running speed is determined to meet audio playing conditions by the AVAS system and the target object exists in the environment image, wherein the target object is an object which is located in the running direction of the automobile and has life;
And the first playing module is used for playing the audio through at least one external loudspeaker of the automobile based on the target audio information.
The second acquisition module is used for:
in the case that the type of the target object includes a human and does not include a non-human, acquiring corresponding first audio information based on the driving speed, and determining the first audio information as the target audio information, wherein the first audio information includes at least one audio signal;
in the case that the type of the target object includes a non-human and does not include a human, acquiring corresponding second audio information based on the traveling speed, and determining the second audio information as the target audio information, wherein the second audio information includes at least one audio signal for dispersing the non-human;
in the case where human and non-human are included in the type of the target object, the first audio information and the second audio information are acquired based on the travel speed, and the first audio information and the second audio information are determined as the target audio information.
In some embodiments, the target audio information includes at least one audio signal therein;
The first playing module is used for:
playing the at least one audio signal through the at least one speaker according to the number of the at least one audio signal when the number of the at least one audio signal is smaller than or equal to the number of the at least one speaker;
selecting the same audio signals as the at least one speaker from the at least one audio signal according to the priority order of the at least one audio signal under the condition that the number of the at least one audio signal is larger than the number of the at least one speaker, and playing the selected audio signals through the at least one speaker; or, mixing the at least one audio signal, so that the number of the at least one audio signal after mixing is smaller than or equal to the number of the at least one loudspeaker, and playing the at least one audio signal after mixing through the at least one loudspeaker.
In some embodiments, the apparatus further comprises:
a first determining module, configured to determine that the running speed does not satisfy the audio playing condition when it is determined by the AVAS system that the running speed is outside a specified running speed range;
And the second determining module is used for determining that the running speed meets the audio playing condition when the running speed is determined to be within the specified running speed range by the AVAS system.
In some embodiments, the target audio information includes at least one audio signal, an audio gain corresponding to the at least one audio signal, and a smoothness parameter corresponding to the at least one audio signal;
the first playing module is used for:
processing the at least one audio signal based on audio gain and smoothness parameters corresponding to the at least one audio signal;
and playing the processed at least one audio signal through at least one loudspeaker arranged outside the automobile.
In some embodiments, the first playing module is further configured to:
optimizing the processed target audio signal, wherein the optimizing comprises at least one of volume adjustment, audio compensation, sound wave separation and audio restoration;
correspondingly, the playing of the processed at least one audio signal through the at least one speaker arranged outside the automobile comprises the following steps:
and playing the optimized at least one audio signal through at least one external loudspeaker of the automobile.
In some embodiments, the apparatus further comprises:
the detection module is used for detecting the audio playing condition of a speaker in the automobile of the automobile under the condition that the running speed meets the audio playing condition and the target object exists in the environment image through the AVAS system;
the third acquisition module is used for acquiring in-vehicle audio information when the in-vehicle speaker is in an audio playing state, wherein the in-vehicle audio information is the audio information of the in-vehicle speaker for audio playing currently;
and the second playing module is used for playing the audio through at least one external loudspeaker of the automobile based on the audio information in the automobile.
In some embodiments, the apparatus further comprises:
the verification module is used for verifying the authority of the function update data when the function update data which is sent by the third party equipment and is used for updating the AVAS system is received;
and the updating module is used for updating the AVAS system based on the function updating data after the function updating data passes the authority verification.
In another aspect, a computer readable storage medium having instructions stored thereon, which when executed by a processor, implement any of the steps of the above-described audio playback control method is provided.
In another aspect, a computer program product is provided comprising instructions which, when run on a computer, cause the computer to perform any of the steps of the above-described audio playback control method.
The technical scheme provided by the embodiment of the application has the beneficial effects that at least:
in the embodiment of the application, the AVAS system can be integrated in the sound host of the automobile, and the AVAS pedestrian prompting function of the automobile is realized through the AVAS system, so that corresponding control hardware is not required to be additionally installed, and the production cost of the whole automobile is reduced. In addition, as the AVAS system can acquire corresponding target audio information based on the running speed and the type of the target object when the running speed meets the audio playing condition and the life target object exists in the current environment image of the automobile, the acquired audio information is more targeted.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for the description of the embodiments will be briefly described below, and it is apparent that the drawings in the following description are only some embodiments of the present application, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic diagram of an audio playback control system architecture according to an embodiment of the present application;
fig. 2 is a flowchart of a method for controlling audio playback according to an embodiment of the present application;
FIG. 3 is a flowchart of another audio playback control method according to an embodiment of the present application;
fig. 4 is a schematic structural diagram of an audio play control device according to an embodiment of the present application;
fig. 5 is a schematic structural diagram of another audio play control device according to an embodiment of the present application;
fig. 6 is a schematic structural diagram of another audio play control device according to an embodiment of the present application.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present application more apparent, the following detailed description of the embodiments of the present application will be given with reference to the accompanying drawings.
Before explaining an audio play control method provided by the embodiment of the present application in detail, an application scenario and a system architecture provided by the embodiment of the present application are explained.
The AVAS system can provide sound similar to that of a conventional internal combustion engine for a noise-free engine such as an electric, hybrid and fuel cell automobile, so that pedestrians can perceive the approach of the automobile during the running of the automobile, and the automobile can be avoided in time, thereby reducing the occurrence of accidents.
However, the existing AVAS system needs to implement the corresponding AVAS pedestrian prompting function through additionally installed control hardware, so that the production cost of the whole vehicle is increased. In addition, since the audio signal stored in the control hardware cannot be updated, the audio play is single, and the sound quality of the sound source is poor.
Based on the application scene, the embodiment of the application improves the audio playing control method for reducing the production cost of the whole car and improving the richness of the sound source.
Next, an explanation is given of a system architecture provided by the embodiment of the present application.
Fig. 1 is a schematic diagram of an audio playing control system architecture provided in an embodiment of the present application, referring to fig. 1, the system architecture includes a sound host 1, a meter 2, at least one external speaker 3 and at least one camera 4. The sound host 1 is respectively connected with the instrument 2 and at least one camera 4 through a CAN (Controller Area Network ) bus, and the sound host 1 is connected with at least one external loudspeaker 3 through an audio line. The instrument 2 is used for acquiring the running speed of the automobile and transmitting the acquired running speed to the sound host 1 through the CAN bus; the at least one camera 4 is used for an environment image of the current environment of the automobile of the user and sending the acquired environment image to the sound host 1 through the CAN bus; the audio host 1 is configured to determine, through the integrated AVAS system, whether the running speed meets an audio playing condition after receiving the running speed sent by the instrument 2 and the environmental image sent by the at least one camera 4, determine whether a target object exists in the environmental image, and if the running speed meets the audio playing condition and the target object exists in the environmental image, acquire corresponding target audio information based on the running speed and the type of the target object, and control the external at least one speaker 3 to play audio based on the target audio information.
In some embodiments, the main audio unit 1 has integrated therein a control module 11, an audio signal processing module 12 and a RAM (Random Access Memory ) module 13, where the control module 11 is configured to determine whether the running speed satisfies the audio playing condition, and determine whether a target object exists in the environment image; the audio signal processing module 12 is configured to obtain, from the RAM module 13, target audio information corresponding to the driving speed and the type of the target object when the driving speed satisfies the audio playing condition and the target object exists in the environmental image, and control at least one speaker 3 external to the automobile to play audio based on the target audio information.
In some embodiments, each external speaker 3 satisfies waterproof and dustproof requirements, and the power of each external speaker 3 is greater than or equal to 15W (watts) and the frequency range is 100KHz to 10KHz. In addition, in the case where the automobile is equipped with an external speaker 3, the external speaker 3 may be disposed at the center of the entire automobile.
In some embodiments, the system architecture CAN further include at least one in-vehicle speaker 5, where the in-vehicle speaker 5 CAN be connected to an in-vehicle system including the main audio unit 1 in the vehicle through a CAN bus, and the at least one in-vehicle speaker 5 is used for playing audio in the vehicle under control of the in-vehicle system.
In fig. 1, 2 external speakers 3, 2 in-vehicle speakers 5, and one camera 4 are taken as examples, and the embodiment of the present application is not limited thereto.
Those skilled in the art will appreciate that the above system architecture is merely exemplary, and that other components or modules that may be present in the present application or in the future are applicable and within the scope of the present application and are incorporated herein by reference.
Fig. 2 is a flowchart of a method for controlling playing of audio according to an embodiment of the present application, where the method for controlling playing of audio may include the following steps:
step 201: the method comprises the steps of acquiring the running speed of an automobile and an environment image of the current environment of the automobile through an audio host of the automobile, wherein an acoustic warning system AVAS system is integrated in the audio host, and the AVAS system is used for realizing an AVAS pedestrian prompt function of the automobile.
Step 202: and under the condition that the running speed meets the audio playing condition and a target object exists in the environment image, acquiring corresponding target audio information based on the running speed and the type of the target object, wherein the target object is an object which is positioned in the running direction of the automobile and has life.
Step 203: and playing the audio through at least one external loudspeaker of the automobile based on the target audio information.
In the embodiment of the application, the AVAS system can be integrated in the sound host of the automobile, and the AVAS pedestrian prompting function of the automobile is realized through the AVAS system, so that corresponding control hardware is not required to be additionally installed, and the production cost of the whole automobile is reduced. In addition, as the AVAS system can acquire corresponding target audio information based on the running speed and the type of the target object when the running speed meets the audio playing condition and the life target object exists in the current environment image of the automobile, the acquired audio information is more targeted.
In some embodiments, obtaining corresponding target audio information based on the travel speed and the type of the target object includes:
in the case that the type of the target object includes a human and does not include a non-human, acquiring corresponding first audio information based on the driving speed, and determining the first audio information as the target audio information, wherein the first audio information includes at least one audio signal;
in the case that the type of the target object includes a non-human and does not include a human, acquiring corresponding second audio information based on the traveling speed, and determining the second audio information as the target audio information, the second audio information including at least one audio signal for dispersing the non-human;
In the case where human and non-human are included in the type of the target object, the first audio information and the second audio information are acquired based on the traveling speed, and the first audio information and the second audio information are determined as the target audio information.
In some embodiments, the target audio information includes at least one audio signal therein;
based on the target audio information, audio playing is performed through at least one external loudspeaker of the automobile, and the method comprises the following steps:
in the case that the number of the at least one audio signal is smaller than or equal to the number of the at least one speaker, playing the at least one audio signal through the at least one speaker according to the number of the at least one audio signal;
selecting the same number of audio signals as the at least one speaker from the at least one audio signal in order of priority of the at least one audio signal and playing the selected audio signal through the at least one speaker, in case that the number of the at least one audio signal is greater than the number of the at least one speaker; or, the at least one audio signal is subjected to audio mixing processing, so that the number of the at least one audio signal after audio mixing processing is smaller than or equal to the number of the at least one loudspeaker, and the at least one audio signal after audio mixing processing is played through the at least one loudspeaker.
In some embodiments, before determining, by the AVAS system, that the running speed meets an audio playing condition and that a target object exists in the environment image, acquiring corresponding target audio information based on the running speed and a type of the target object, the method further includes:
when the AVAS system determines that the running speed is out of the specified running speed range, determining that the running speed does not meet the audio playing condition;
when the travel speed is determined to be within the specified travel speed range by the AVAS system, it is determined that the travel speed satisfies the audio playback condition.
In some embodiments, the target audio information includes at least one audio signal, an audio gain corresponding to the at least one audio signal, and a smoothness parameter corresponding to the at least one audio signal;
based on the target audio information, audio playing is performed through at least one external loudspeaker of the automobile, and the method comprises the following steps:
processing the at least one audio signal based on the audio gain and smoothness parameters corresponding to the at least one audio signal;
and playing the processed at least one audio signal through at least one external loudspeaker of the automobile.
In some embodiments, before playing the processed at least one audio signal through the at least one speaker external to the automobile, the method further comprises:
optimizing the at least one processed audio signal, wherein the optimizing comprises at least one of volume adjustment, audio compensation, sound wave separation and audio restoration;
correspondingly, the playing of the processed at least one audio signal through the at least one external loudspeaker of the automobile comprises the following steps:
and playing the optimized at least one audio signal through at least one external loudspeaker of the automobile.
In some embodiments, after the driving speed of the automobile and the environmental image of the current environment of the automobile are obtained by the host machine of the automobile, the method further includes:
under the condition that the running speed meets the audio playing condition and the target object exists in the environment image, detecting the audio playing condition of a speaker in the automobile of the automobile;
when the in-vehicle loudspeaker is in an audio playing state, acquiring in-vehicle audio information, wherein the in-vehicle audio information is the audio information of the in-vehicle loudspeaker for audio playing currently;
Based on the audio information in the automobile, audio playing is carried out through at least one external loudspeaker of the automobile.
In some embodiments, the method further comprises:
when receiving function update data which is sent by third party equipment and is used for updating the AVAS system, carrying out authority verification on the function update data;
and updating the AVAS system based on the function update data after the function update data passes the authority verification.
All the above optional technical solutions may be combined according to any choice to form an optional embodiment of the present application, and the embodiments of the present application will not be described in detail.
Fig. 3 is a flowchart of an audio play control method according to an embodiment of the present application, where the audio play control method is applied to an automobile for illustration, and the audio play control method may include the following steps:
step 301: the automobile acquires the running speed of the automobile and the environment image of the current environment of the automobile through the sound host.
It should be noted that, the audio host is integrated with an AVAS system, which is used for realizing the AVAS pedestrian prompting function of the automobile, and the AVAS system is integrated in the audio host in the form of an application program, or may be integrated in the audio host in the form of other similar application programs.
Because when the automobile is too silent in the driving process, the pedestrian may not easily perceive the approach of the automobile, at this time, in order to enable the pedestrian to perceive the approach of the automobile, the automobile needs to play audio, and in order to enable the pedestrian to obviously perceive the driving speed of the automobile, the pedestrian dodges in time, and the automobile generally plays different audio according to different driving speeds. In addition, when no pedestrians and animals exist in the current environment of the automobile, the automobile does not need to remind the pedestrians of the AVAS. It is known that the running speed of the car and the current environment have an important influence on the playing of the audio. In addition, as the AVAS system is integrated in the sound host of the automobile, and the AVAS system can realize the AVAS pedestrian prompting function of the automobile, the automobile can acquire the running speed of the automobile and the environment image of the current environment of the automobile through the sound host.
As can be seen from fig. 1, the main audio unit of the automobile is connected with the meter of the automobile and at least one camera, the meter of the automobile can acquire the running speed of the automobile, and the at least one camera can acquire the environmental image of the current environment of the automobile.
The automobile CAN acquire the running speed of the automobile through the instrument, acquire the environment image through at least one camera, and send the acquired running speed and environment image to the sound host through the CAN bus, so that the sound host acquires the running speed and environment image.
In some embodiments, the vehicle obtains the running speed and the environment image of the vehicle through the host machine at first specified time intervals, or obtains the running speed and the environment image of the vehicle through the host machine in real time. The first specified time interval is set in advance according to the requirement, for example, the first specified time interval is 3 minutes, 5 minutes, 8 minutes, or the like.
Step 302: the automobile determines whether the running speed meets the audio playing condition through the AVAS system and determines whether a target object exists in the environment image.
The target object is a living object located in the traveling direction of the automobile, such as a pedestrian, and animals such as cats, dogs, birds, and the like.
Because the AVAS pedestrian prompting function of the automobile is influenced by the running speed and the environment, and not all running speeds need to be subjected to audio playing, nor all environments need to be subjected to audio playing, the automobile can determine whether the running speed meets the audio playing condition or not and whether a target object exists in an environment image through the AVAS system.
As one example, when the vehicle determines that the travel speed is outside the specified travel speed range through the AVAS system, it is determined that the travel speed does not satisfy the audio playback condition; when the running speed is determined to be within the specified running speed range by the AVAS system, it is determined that the running speed satisfies the audio playing condition.
The specified travel speed range is set in advance according to the need, for example, the specified travel speed range is greater than 0km/h (kilometer/hour) and less than or equal to 30km/h, or greater than 0km/h and less than or equal to 35km/h, or the like.
In some embodiments, the vehicle can determine whether the running speed satisfies the audio playing condition not only according to whether the running speed is within the specified running speed range, but also according to other manners, for example, the vehicle can determine whether the running speed is in an ascending trend, when the running speed is within the specified running speed range and in an ascending trend, or when the running speed is in an ascending trend, the running speed satisfies the audio playing condition.
As one example, the operation of the car to determine whether a target object is present in the ambient image includes: determining feature information of each object in the environment image through an image recognition algorithm, wherein the feature information is used for describing whether the corresponding object has life, the type of the corresponding object when the corresponding object has life and the like; when the feature information describes that any object has life, determining that a target object exists in the environment image; when the feature information describes that any object does not have life, it is determined that the environment image does not have a target object.
Step 303: and under the condition that the running speed of the automobile meets the audio playing condition and the target object exists in the environment image, acquiring corresponding target audio information based on the running speed and the type of the target object.
Because the running speed meets the audio playing condition and the condition that the target object exists in the environment image indicates that the automobile needs to play the audio through at least one external loudspeaker, the automobile needs to acquire corresponding target audio information based on the running speed and the type of the target object.
It should be noted that the target audio information includes one or more of at least one audio signal, an audio gain corresponding to the at least one audio signal, a smoothness parameter corresponding to the at least one audio signal, and the like.
Because the types of the target objects are different, the corresponding target audio information is also different, and therefore, the automobile acquires the corresponding target audio information based on the driving speed and the type of the target object, and the method comprises the following steps: in the case that the type of the target object includes a human and does not include a non-human, acquiring corresponding first audio information based on the traveling speed, and determining the first audio information as target audio information, the first audio information including at least one audio signal therein; in the case that the type of the target object includes a non-human and does not include a human, acquiring corresponding second audio information based on the traveling speed, and determining the second audio information as target audio information, the second audio information including at least one audio signal for dispelling the non-human; in the case where human and non-human are included in the type of the target object, the first audio information and the second audio information are acquired based on the traveling speed, and the first audio information and the second audio information are determined as the target audio information.
Because the target object may be animals such as cats, dogs, birds and the like when the type of the target object includes non-human beings, after the vehicle plays common audio through at least one external speaker, the animals may not avoid the audio due to the audio although hearing the audio, so that in order to improve the success rate of avoiding the non-human beings from the vehicle, when the type of the target object includes non-human beings, the second audio information may be acquired based on the driving speed.
In some embodiments, the audio host of the automobile can store a first correspondence and a second correspondence, where the first correspondence is a correspondence between the running speed and the audio information when the type of the target object includes a human and does not include a non-human, and the second correspondence is a correspondence between the running speed and the audio information when the type of the target object includes a non-human and does not include a human. Accordingly, in the case where the human being is included in the type of the target object, the automobile may acquire the corresponding audio information from the first correspondence based on the acquired travel speed, and determine the acquired audio information as the first audio information. In the case where the type of the target object includes a non-human, corresponding audio information is acquired from the second correspondence based on the acquired travel speed, and the acquired audio information is determined as second audio information.
In some embodiments, the first correspondence and the second correspondence stored in the audio host may be a correspondence of the audio host in the AVAS system, or may be preset by a user, and when the first correspondence and the second correspondence are provided in the AVAS, the user may also modify the first correspondence and the second correspondence.
In some embodiments, the first setting interface can be displayed when the automobile receives the first setting instruction; when a second setting instruction is received based on the first setting interface, storing a first corresponding relation or a second corresponding relation between the running speed and the audio information carried in the second setting instruction.
It should be noted that, the first setting instruction is triggered when the user acts on the main audio unit through a specified operation, where the specified operation is a click operation, a sliding operation, a voice operation, or the like.
In some embodiments, when the first correspondence and the second correspondence are not stored in the audio host, the automobile sends an audio information acquisition request to the third party device, where the audio information acquisition request carries a running speed of the automobile and a type of a target object, and after the third party device receives the audio information acquisition request, the third party device can acquire corresponding target audio information based on the running speed and the type of the target object, and send the acquired target audio information to the automobile, so that the automobile can acquire the target audio information.
In some embodiments, when the audio information acquisition request cannot be successfully transmitted due to the fact that the first corresponding relationship and the second corresponding relationship are not stored in the audio host and the delay exists in the network where the automobile is currently located, the automobile can acquire temporary audio information through the audio host and determine the temporary audio information as target audio information.
It should be noted that the temporary audio information may also be audio information set in advance by the user, and the temporary audio information is target audio information corresponding to the car at any running speed.
In some embodiments, the automobile may receive a third setting instruction triggered by the user through the specified operation, and display a second setting interface according to the third setting instruction, where the second setting interface includes a plurality of audio options, and when a selection instruction is received based on at least one audio option of the plurality of audio options, at least one audio information corresponding to the at least one audio option is determined to be temporary audio information.
Since the target object may include non-human and human, in order to enable avoidance of the target object, the temporary audio information may include an audio signal for dispelling the non-human.
Step 304: the automobile plays the audio through at least one external loudspeaker of the automobile based on the target audio information.
As can be seen from the above, the target audio information includes at least one of at least one audio signal, an audio gain corresponding to the at least one audio signal, a smoothness parameter corresponding to the at least one audio signal, and the like. Thus, in case that at least one audio signal is included in the target audio information, the at least one audio signal may be played through the external at least one speaker according to the number of the at least one audio signal.
In some embodiments, in the case that the number of the at least one audio signal is less than or equal to the number of the at least one speaker, playing the at least one audio signal through the at least one speaker, respectively, in accordance with the number of the at least one audio signal; selecting the same number of audio signals as the at least one speaker from the at least one audio signal in order of priority of the at least one audio signal and playing the selected audio signal through the at least one speaker, in case that the number of the at least one audio signal is greater than the number of the at least one speaker; or, mixing the at least one audio signal so that the number of the at least one audio signal after the mixing is smaller than or equal to the number of the at least one speaker, and playing the at least one audio signal after the mixing through the at least one speaker.
Since each of the at least one audio signal can be played in a case where the number of the at least one audio signal is less than or equal to the number of the at least one speaker, the at least one audio signal can be played through the at least one speaker, respectively, in accordance with the number of the at least one audio signal.
In the case where the number of at least one audio signal is greater than the number of at least one speaker, at least one audio signal cannot be simultaneously played through at least one speaker, and therefore, the car needs to process at least one audio signal, i.e., the car can mix at least one audio signal or select a part of the audio signals having a high priority from among the at least one audio signal.
In some embodiments, when the car mixes at least one audio signal, according to the priority of the at least one audio signal, a part of audio signals with low priority may be selected from the at least one audio signal to mix, and the audio signals with high priority are reserved, so that the number of the at least one audio signal after the mixing process is less than or equal to the number of the at least one speaker; or, randomly selecting part of the audio signals from the at least one audio signal to perform audio mixing processing, so that the number of the at least one audio signal after the audio mixing processing is smaller than or equal to the number of the at least one loudspeaker.
It should be noted that, the priority of the at least one audio signal is set in advance according to the requirement, for example, when the at least one audio signal includes an audio signal for dispersing non-human, the priority of the at least one audio signal for dispersing non-human is set to be highest.
In some embodiments, because the target audio information may include at least one audio signal, an audio gain corresponding to the at least one audio signal, a smoothness parameter corresponding to the at least one audio signal, and the like, the operation of the automobile for playing audio through the speaker external to the automobile based on the target audio information includes: processing the at least one audio signal based on the audio gain and smoothness parameters corresponding to the at least one audio signal; and playing the processed at least one audio signal through at least one external loudspeaker of the automobile.
Because the audio fluctuation and the jamming can occur when the automobile plays at least one audio signal in the driving process, in order to enable the played at least one audio signal to be smooth and free of jamming, the automobile can perform gain and smoothness processing on the at least one audio signal based on the audio gain and smoothness parameters corresponding to the at least one audio signal.
It should be noted that, the operation of the car for processing at least one audio signal based on the audio gain and smoothness parameters corresponding to the at least one audio signal may refer to related technologies, which will not be described in detail in the embodiments of the present application.
In some embodiments, the vehicle is further capable of optimizing the at least one audio signal prior to playing the processed at least one audio signal through the external at least one speaker, the optimizing including at least one of volume adjustment, audio compensation, sound wave separation, and audio reproduction; and playing the optimized at least one audio signal through at least one external loudspeaker of the automobile.
In some embodiments, the automobile may play other audio in addition to audio that implements the AVAS pedestrian alert function through an external speaker.
In some embodiments, after the automobile obtains the running speed of the automobile and the environmental image of the current environment of the automobile through the audio host, the audio playing condition of the speaker in the automobile is detected when the running speed is determined to meet the audio playing condition through the AVAS system and the target object exists in the environmental image; when the in-vehicle loudspeaker is in an audio playing state, acquiring in-vehicle audio information, wherein the in-vehicle audio information is the audio information of the in-vehicle loudspeaker for audio playing currently; based on the audio information in the automobile, audio playing is carried out through at least one external loudspeaker of the automobile.
It should be noted that, audio played by the speaker in the vehicle may be audio of a broadcast application, audio of a sound source application, operation prompt tone, and the like.
Because the sources of the audio signals in the in-car audio information may be different, if the number of sources of the audio signals in the in-car audio information is greater than the number of at least one speaker, in order to optimize audio playing, the car may mix the audio signals in the in-car audio information, and in the mixing process, the frequency, the tone quality and the sound field of each audio signal are independently adjusted, so that each audio track is optimized, and thus a well-defined audio signal is output to at least one external speaker.
In some embodiments, the total delay of the vehicle from acquiring the driving speed and the environmental image through the meter to outputting the audio signal to the external at least one speaker is no more than 40ms (milliseconds).
In some embodiments, the car may update the AVAS system.
As an example, the automobile may receive the function update data sent by the third party device to update the AVAS system, and perform authority verification on the function update data when the function update data sent by the third party device is received; and updating the AVAS system based on the function update data after the function update data passes the authority verification.
It should be noted that, when The automobile has a FOTA (Firmware Over-The-Air) function, the FOTA function can provide Firmware upgrade service to The automobile, and The AVAS system can be upgraded because it is provided in The head unit in The form of an application or other similar application. In addition, for the safety of the automobile, after the automobile receives the function update data sent by the third party device through the communication module such as the T-BOX, authority verification needs to be performed on the function update data.
In some embodiments, the function update data carries a protocol identifier of a security protocol supported by the third party device, after the automobile receives the function update data, the automobile acquires the protocol identifier from the function update data, matches the protocol identifier with a stored protocol identifier, and determines that the function update data passes the authority verification when the stored protocol identifier has the same protocol identifier as the protocol identifier carried in the function update data; and when the stored protocol identifier does not have the same protocol identifier as the protocol identifier carried in the function update data, determining that the function update data does not pass the authority verification.
In some embodiments, the automobile can perform authority verification on the function update data according to the above manner, and can perform authority verification in other manners, for example, after the automobile receives the function update data, it is determined whether the protocol format of the function update data accords with the security protocol format, and when the protocol format of the function update data accords with the security protocol format, it is determined that the function update data passes the authority verification; when the protocol format of the function update data does not accord with the security protocol format, determining that the function update data does not pass the authority verification.
In some embodiments, the vehicle is able to prompt the security of the function update data by a prompt message when the function update data fails the permission verification.
In some embodiments, the operation of the vehicle to update the AVAS system based on the functional update data includes: downloading the function update data, and updating the data packet of the AVAS system through the function update data. Or downloading function update data and displaying an update prompt interface; when receiving an update instruction based on the update prompt interface, updating the data packet of the AVAS system through the function update data.
Because the user does not want to update the AVAS system sometimes, in order to increase the user viscosity, the user has the option of updating the AVAS, and the automobile can display an update prompt interface for the user to select whether to update.
It should be noted that, the update instruction is triggered when the user acts on the update prompt interface through a specified operation.
In some embodiments, after receiving the update cancellation instruction based on the update prompt interface, the vehicle cancels the update of the AVAS this time and displays the update prompt interface at intervals of a second designated time.
In the embodiment of the application, the AVAS system can be integrated in the sound host of the automobile, and the AVAS pedestrian prompting function of the automobile is realized through the AVAS system, so that corresponding control hardware is not required to be additionally installed, and the production cost of the whole automobile is reduced. In addition, as the AVAS system can acquire corresponding target audio information based on the running speed and the type of the target object when the running speed meets the audio playing condition and the life target object exists in the current environment image of the automobile, the acquired audio information is more targeted. And because the AVAS system can be integrated in the audio host in the form of application programs or similar application programs, the audio information in the AVAS system can be ensured to be updated, and the richness of the audio information in the AVAS system is improved.
Fig. 4 is a schematic structural diagram of an audio play control device according to an embodiment of the present application, where the audio play control device may be implemented by software, hardware, or a combination of the two. The audio play control device may include: a first acquisition module 401, a second acquisition module 402, and a first playback module 403.
The first obtaining module 401 is configured to obtain, through a sound host of the automobile, a running speed of the automobile and an environmental image of an environment where the automobile is currently located, where an acoustic warning system AVAS system is integrated in the sound host, where the AVAS system is configured to implement an AVAS pedestrian prompt function of the automobile;
a second obtaining module 402, configured to obtain, when it is determined by the AVAS system that the running speed meets an audio playing condition and a target object exists in the environment image, corresponding target audio information based on the running speed and a type of the target object, where the target object is an object located in a running direction of the automobile and has a life;
the first playing module 403 is configured to play audio through at least one speaker external to the automobile based on the target audio information.
The second acquisition module 402 is configured to:
in the case that the type of the target object includes a human and does not include a non-human, acquiring corresponding first audio information based on the driving speed, and determining the first audio information as the target audio information, wherein the first audio information includes at least one audio signal;
In the case that the type of the target object includes a non-human and does not include a human, acquiring corresponding second audio information based on the traveling speed, and determining the second audio information as the target audio information, the second audio information including at least one audio signal for dispersing the non-human;
in the case where human and non-human are included in the type of the target object, the first audio information and the second audio information are acquired based on the traveling speed, and the first audio information and the second audio information are determined as the target audio information.
In some embodiments, the target audio information includes at least one audio signal therein;
the first playing module 403 is configured to:
in the case that the number of the at least one audio signal is smaller than or equal to the number of the at least one speaker, playing the at least one audio signal through the at least one speaker according to the number of the at least one audio signal;
selecting the same number of audio signals as the at least one speaker from the at least one audio signal in order of priority of the at least one audio signal and playing the selected audio signal through the at least one speaker, in case that the number of the at least one audio signal is greater than the number of the at least one speaker; or, the at least one audio signal is subjected to audio mixing processing, so that the number of the at least one audio signal after audio mixing processing is smaller than or equal to the number of the at least one loudspeaker, and the at least one audio signal after audio mixing processing is played through the at least one loudspeaker.
In some embodiments, referring to fig. 5, the apparatus further comprises:
a first determining module 404, configured to determine that the running speed does not satisfy the audio playing condition when it is determined by the AVAS system that the running speed is outside a specified running speed range;
a second determining module 405 is configured to determine that the travel speed satisfies the audio playing condition when the travel speed is determined to be within the specified travel speed range by the AVAS system.
In some embodiments, the target audio information includes at least one audio signal, an audio gain corresponding to the at least one audio signal, and a smoothness parameter corresponding to the at least one audio signal;
the first playing module 403 is configured to:
processing the at least one audio signal based on the audio gain and smoothness parameters corresponding to the at least one audio signal;
and playing the processed at least one audio signal through at least one external loudspeaker of the automobile.
In some embodiments, the first playing module is further configured to:
optimizing the processed target audio signal, wherein the optimizing process comprises at least one of volume adjustment, audio compensation, sound wave separation and audio restoration;
Correspondingly, the playing of the processed at least one audio signal through the at least one external loudspeaker of the automobile comprises the following steps:
and playing the optimized at least one audio signal through at least one external loudspeaker of the automobile.
In some embodiments, referring to fig. 6, the apparatus further comprises:
a detection module 406, configured to detect an audio playing condition of a speaker in the vehicle of the vehicle when the AVAS system determines that the running speed meets the audio playing condition and the target object exists in the environment image;
a third obtaining module 407, configured to obtain in-vehicle audio information when the in-vehicle speaker is in an audio playing state, where the in-vehicle audio information is audio information that the in-vehicle speaker currently plays audio;
the second playing module 408 is configured to play audio through at least one speaker external to the automobile based on the audio information in the automobile.
In some embodiments, the apparatus further comprises:
the verification module is used for carrying out authority verification on the function update data when the function update data which is sent by the third party equipment and is used for updating the AVAS system is received;
And the updating module is used for updating the AVAS system based on the function updating data after the function updating data passes the authority verification.
In the embodiment of the application, the AVAS system can be integrated in the sound host of the automobile, and the AVAS pedestrian prompting function of the automobile is realized through the AVAS system, so that corresponding control hardware is not required to be additionally installed, and the production cost of the whole automobile is reduced. In addition, as the AVAS system can acquire corresponding target audio information based on the running speed and the type of the target object when the running speed meets the audio playing condition and the life target object exists in the current environment image of the automobile, the acquired audio information is more targeted. And because the AVAS system can be integrated in the audio host in the form of application programs or similar application programs, the audio information in the AVAS system can be ensured to be updated, and the richness of the audio information in the AVAS system is improved.
It should be noted that: in the audio playing control device provided in the above embodiment, when controlling audio playing, only the division of the above functional modules is used for illustration, in practical application, the above functional allocation may be performed by different functional modules according to needs, that is, the internal structure of the device is divided into different functional modules, so as to complete all or part of the functions described above. In addition, the audio playing control device provided in the above embodiment and the audio playing control method embodiment belong to the same concept, and the specific implementation process is detailed in the method embodiment, which is not repeated here.
The embodiment of the application also provides a non-transitory computer readable storage medium, which enables the automobile to execute the audio playing control method provided by the embodiment when the instructions in the storage medium are executed by the processor of the automobile.
The embodiment of the application also provides a computer program product containing instructions, which when running on an automobile, causes the automobile to execute the audio playing control method provided by the embodiment.
It will be understood by those skilled in the art that all or part of the steps for implementing the above embodiments may be implemented by hardware, or may be implemented by a program for instructing relevant hardware, where the program may be stored in a computer readable storage medium, and the storage medium may be a read-only memory, a magnetic disk or an optical disk, etc.
The foregoing description of the preferred embodiments of the present application is not intended to limit the embodiments of the present application, but is intended to cover any modifications, equivalents, improvements or alternatives falling within the spirit and principles of the embodiments of the present application.

Claims (8)

1. A method for controlling playback of audio, the method comprising:
Acquiring the running speed of an automobile and an environment image of the current environment of the automobile through an audio host of the automobile, wherein an acoustic warning system AVAS system is integrated in the audio host, and the AVAS system is used for realizing an AVAS pedestrian prompting function of the automobile;
under the condition that the running speed meets audio playing conditions and a target object exists in the environment image, corresponding target audio information is acquired based on the running speed and the type of the target object, wherein the target object is an object which is located in the running direction of the automobile and has life;
based on the target audio information, audio playing is carried out through at least one external loudspeaker of the automobile;
the obtaining corresponding target audio information based on the driving speed and the type of the target object includes:
in the case that the type of the target object includes a human and does not include a non-human, acquiring corresponding first audio information based on the driving speed, and determining the first audio information as the target audio information, wherein the first audio information includes at least one audio signal;
in the case that the type of the target object includes a non-human and does not include a human, acquiring corresponding second audio information based on the traveling speed, and determining the second audio information as the target audio information, wherein the second audio information includes at least one audio signal for dispersing the non-human;
In the case where human and non-human are included in the type of the target object, acquiring the first audio information and the second audio information based on the travel speed, and determining the first audio information and the second audio information as the target audio information;
based on the target audio information, performing audio playing through at least one external speaker of the automobile, including:
playing the at least one audio signal through the at least one speaker according to the number of the at least one audio signal when the number of the at least one audio signal is smaller than or equal to the number of the at least one speaker;
and under the condition that the number of the at least one audio signal is larger than that of the at least one loudspeaker, performing audio mixing processing on the at least one audio signal so that the number of the at least one audio signal after audio mixing processing is smaller than or equal to that of the at least one loudspeaker, and playing the at least one audio signal after audio mixing processing through the at least one loudspeaker.
2. The method of claim 1, wherein, before determining, by the AVAS system, that the travel speed satisfies an audio playback condition and that a target object is present in the environment image, acquiring corresponding target audio information based on the travel speed and the type of the target object, further comprises:
When the AVAS system determines that the running speed is out of a specified running speed range, determining that the running speed does not meet the audio playing condition;
and when the running speed is determined to be within the specified running speed range by the AVAS system, determining that the running speed meets the audio playing condition.
3. The method of claim 1, wherein the target audio information includes at least one audio signal, an audio gain corresponding to the at least one audio signal, and a smoothness parameter corresponding to the at least one audio signal;
based on the target audio information, performing audio playing through at least one external speaker of the automobile, including:
processing the at least one audio signal based on audio gain and smoothness parameters corresponding to the at least one audio signal;
and playing the processed at least one audio signal through at least one loudspeaker arranged outside the automobile.
4. The method of claim 3, wherein before the playing the processed at least one audio signal through the at least one speaker external to the vehicle, further comprising:
Optimizing the processed at least one audio signal, wherein the optimizing comprises at least one of volume adjustment, audio compensation, sound wave separation and audio restoration;
correspondingly, the playing of the processed at least one audio signal through the at least one speaker arranged outside the automobile comprises the following steps:
and playing the optimized at least one audio signal through at least one external loudspeaker of the automobile.
5. The method of claim 1, wherein after the step of obtaining, by the host machine of the car, the running speed of the car and the environmental image of the environment in which the car is currently located, further comprises:
detecting the audio playing condition of a speaker in the automobile of the automobile under the condition that the running speed meets the audio playing condition and the target object exists in the environment image through the AVAS system;
when the in-vehicle loudspeaker is in an audio playing state, acquiring in-vehicle audio information, wherein the in-vehicle audio information is the audio information of the in-vehicle loudspeaker for audio playing currently;
and playing the audio through at least one external loudspeaker of the automobile based on the audio information in the automobile.
6. The method of claim 1, wherein the method further comprises:
when receiving function update data which is sent by third-party equipment and is used for updating the AVAS system, carrying out authority verification on the function update data;
and updating the AVAS system based on the function update data after the function update data passes the authority verification.
7. An audio playback control device, the device comprising:
the system comprises a first acquisition module, a second acquisition module and a third acquisition module, wherein the first acquisition module is used for acquiring the running speed of an automobile and an environment image of the current environment of the automobile through an audio host of the automobile, an acoustic warning system (AVAS) system is integrated in the audio host, and the AVAS system is used for realizing an AVAS pedestrian prompt function of the automobile;
the second acquisition module is used for acquiring corresponding target audio information based on the running speed and the type of the target object when the running speed is determined to meet audio playing conditions by the AVAS system and the target object exists in the environment image, wherein the target object is an object which is located in the running direction of the automobile and has life;
the playing module is used for playing the audio through at least one external loudspeaker of the automobile based on the target audio information;
The obtaining corresponding target audio information based on the driving speed and the type of the target object includes:
in the case that the type of the target object includes a human and does not include a non-human, acquiring corresponding first audio information based on the driving speed, and determining the first audio information as the target audio information, wherein the first audio information includes at least one audio signal;
in the case that the type of the target object includes a non-human and does not include a human, acquiring corresponding second audio information based on the traveling speed, and determining the second audio information as the target audio information, wherein the second audio information includes at least one audio signal for dispersing the non-human;
in the case where human and non-human are included in the type of the target object, acquiring the first audio information and the second audio information based on the travel speed, and determining the first audio information and the second audio information as the target audio information;
based on the target audio information, performing audio playing through at least one external speaker of the automobile, including:
Playing the at least one audio signal through the at least one speaker according to the number of the at least one audio signal when the number of the at least one audio signal is smaller than or equal to the number of the at least one speaker;
and under the condition that the number of the at least one audio signal is larger than that of the at least one loudspeaker, performing audio mixing processing on the at least one audio signal so that the number of the at least one audio signal after audio mixing processing is smaller than or equal to that of the at least one loudspeaker, and playing the at least one audio signal after audio mixing processing through the at least one loudspeaker.
8. A computer readable storage medium having stored thereon instructions which, when executed by a processor, implement the steps of the method of any of the preceding claims 1 to 6.
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