Vehicle sound interaction system and method

Abstract

The application discloses a vehicle sound interaction system and method, relates to the technical field of intelligent automobiles, and solves the problem that vehicles cannot interact with each other. The specific scheme comprises the following steps: the system comprises a plurality of vehicles and a management device; the management device is used for obtaining to-be-played information when it is determined that the plurality of vehicles successfully form a team, and sending the to-be-played information to each vehicle; the to-be-played information comprises a plurality of sub-audios, and the corresponding playing time period and vehicle identifier of each sub-audio; the plurality of sub-audios form an audio; each vehicle is used for determining a target sub-audio from the plurality of sub-audios according to the corresponding vehicle identifier after receiving the to-be-played information; and under a preset condition, each sub-audio is mapped and processed according to a current standard time to obtain the playing time corresponding to each playing time period; and each vehicle is further used for playing the target sub-audio at the corresponding playing time by using a vehicle external playing device.

Description

Technical Field

[0001] This application relates to the field of intelligent vehicle technology, and in particular to a vehicle voice interaction system and method. Background Technology

[0002] Intelligent vehicles can facilitate convenient travel through map navigation services and prevent vehicle accidents through monitoring and alarm services. Furthermore, intelligent vehicles can provide entertainment services such as audio and video, ambient lighting, and cool lighting effects, further enhancing the driving experience. However, current vehicles do not yet achieve audio interaction, such as mixing audio effects from different vehicles to create crosstalk, symphony, or choral music. Summary of the Invention

[0003] This application provides a vehicle voice interaction system and method that enables voice interaction between vehicles, thereby improving the driving experience.

[0004] To achieve the above objectives, this application adopts the following technical solution:

[0005] In a first aspect, this application provides a vehicle voice interaction system, which includes multiple vehicles and management devices;

[0006] The management device is used to obtain the playback information when it is determined that multiple vehicles have successfully formed a platoon, and to send the playback information to each vehicle. The playback information includes multiple sub-audio, as well as the playback time period and vehicle identifier corresponding to each sub-audio. Multiple sub-audio consists of one audio.

[0007] Each vehicle, upon receiving the information to be played, determines the target sub-audio from multiple sub-audio based on the corresponding vehicle identifier, and, under preset conditions, maps the playback time period corresponding to each sub-audio according to the current standard time to obtain the playback time corresponding to each playback time period.

[0008] Each vehicle is also used to play the target sub-audio at the corresponding playback time using the vehicle's external speaker.

[0009] In one embodiment, an audio file consists of multiple audio tracks, and a sub-audio file is an audio track.

[0010] The management equipment is specifically used to: when multiple vehicles are successfully grouped together, assign audio tracks and playback time periods to each vehicle, and obtain the playback information based on the playback time period corresponding to each audio track and the vehicle identifier, with each audio track corresponding to the same playback time period.

[0011] In one embodiment, an audio file consists of audio from multiple playback time periods, and a sub-audio file is audio from a single playback time period.

[0012] The management equipment is specifically used to: when multiple vehicles are successfully grouped together, assign audio to each vehicle for a corresponding playback time period, and obtain the playback information based on the vehicle identifier corresponding to the audio for each playback time period.

[0013] In one embodiment, each vehicle is specifically used for:

[0014] Get the target playback volume of the target sub-audio;

[0015] Using the vehicle's external speaker, the target sub-audio is played at the corresponding playback time according to the target playback volume, while the other sub-audio audios besides the target sub-audio are played at a preset volume.

[0016] In one embodiment, the management device is specifically used for:

[0017] Receive team-up requests from each vehicle, which include the location information of each vehicle. Determine the distance between any two vehicles based on their location information. If all distances are less than a preset threshold, the team-up of multiple vehicles is confirmed to be successful.

[0018] In one embodiment, each vehicle is also used for:

[0019] Obtain GPS time information and calibrate the current time of each vehicle based on the GPS time information to obtain the current standard time.

[0020] In one embodiment, the preset conditions include: the current standard time has reached a preset playback time, or all vehicles are located at preset playback positions.

[0021] A second aspect of this application provides a vehicle voice interaction method, applied to the vehicle voice interaction system of the first aspect of this application, the method comprising:

[0022] When the management device confirms that multiple vehicles have successfully formed a platoon, it obtains the information to be played and sends the information to be played to each vehicle. The information to be played includes multiple sub-audio, as well as the playback time period and vehicle identifier corresponding to each sub-audio. Multiple sub-audio consist of one audio.

[0023] After receiving the information to be played, each vehicle determines the target sub-audio from multiple sub-audio based on the corresponding vehicle identifier, and under preset conditions, maps the playback time period corresponding to each sub-audio according to the current standard time to obtain the playback time corresponding to each playback time period.

[0024] Each vehicle uses its external speaker to play the target sub-audio at the corresponding playback time.

[0025] In one embodiment, an audio file consists of multiple audio tracks, and a sub-audio file is an audio track.

[0026] When the management device confirms that multiple vehicles have successfully formed a platoon, it obtains the information to be played, including:

[0027] When the management equipment confirms that multiple vehicles have successfully formed a platoon, it assigns an audio track and a playback time period to each vehicle. Based on the playback time period corresponding to each audio track and the vehicle identifier, it obtains the playback information. The playback time periods corresponding to each audio track are the same.

[0028] In one embodiment, an audio file consists of audio from multiple playback time periods, and a sub-audio file is audio from a single playback time period.

[0029] When the management device confirms that multiple vehicles have successfully formed a platoon, it obtains the information to be played, including:

[0030] When the management device confirms that multiple vehicles have successfully formed a platoon, it assigns audio for each vehicle to a corresponding playback time period and obtains the playback information based on the vehicle identifier corresponding to the audio for each playback time period.

[0031] The beneficial effects of the technical solutions provided in this application include at least the following:

[0032] The vehicle voice interaction system provided in this application includes multiple vehicles and a management device. The management device, upon confirming successful vehicle platooning, acquires playback information and sends it to each vehicle. The playback information includes multiple sub-audio segments, corresponding playback time periods, and vehicle identifiers, where the multiple sub-audio segments form a single audio segment. Each vehicle, upon receiving the playback information, determines the target sub-audio segment from the multiple sub-audio segments based on its corresponding vehicle identifier. Under preset conditions, it maps the playback time periods corresponding to each sub-audio segment to the current standard time, obtaining the playback time for each playback time period. Each vehicle also plays the target sub-audio segment using its external speaker at the corresponding playback time. By dividing a single audio segment into multiple sub-audio segments, and having multiple vehicles play their respective sub-audio segments using their external speakers, this application enables audio interaction between multiple vehicles, creating effects such as crosstalk, symphonic music, or choral music, further enhancing the driving experience. Attached Figure Description

[0033] Figure 1 A schematic diagram of a vehicle voice interaction system provided in an embodiment of this application;

[0034] Figure 2 An illustration of an audio file comprising multiple sub-audio units provided in this application embodiment. Figure 1 ;

[0035] Figure 3An illustration of an audio file comprising multiple sub-audio units provided in this application embodiment. Figure 2 ;

[0036] Figure 4 A flowchart illustrating a vehicle voice interaction method provided in an embodiment of this application. Detailed Implementation

[0037] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0038] Hereinafter, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of embodiments of this disclosure, unless otherwise stated, "a plurality of" means two or more.

[0039] In addition, the use of “based on” or “according to” implies openness and inclusivity, because processes, steps, calculations or other actions “based on” or “according to” one or more conditions or values ​​can in practice be based on additional conditions or values ​​beyond those conditions.

[0040] Intelligent vehicles can facilitate convenient travel through map navigation services and prevent vehicle accidents through monitoring and alarm services. Furthermore, intelligent vehicles can provide entertainment services such as audio and video, ambient lighting, and cool lighting effects, further enhancing the driving experience. However, current vehicles do not yet achieve audio interaction, such as mixing audio effects from different vehicles to create crosstalk, symphony, or choral music.

[0041] To address the aforementioned issues, this application provides a vehicle audio interaction system, including multiple vehicles and a management device. The management device, upon confirming successful vehicle platooning, acquires playback information and sends it to each vehicle. The playback information includes multiple sub-audio segments, corresponding playback time periods for each sub-audio segment, and a vehicle identifier. Each sub-audio segment constitutes a single audio segment. Upon receiving the playback information, each vehicle determines a target sub-audio segment from the multiple sub-audio segments based on its corresponding vehicle identifier. Under preset conditions, it maps the playback time periods corresponding to each sub-audio segment to the current standard time, obtaining the playback time for each playback time period. Each vehicle also plays the target sub-audio segment using its external speaker at the corresponding playback time. By dividing a single audio segment into multiple sub-audio segments, and having multiple vehicles play their respective sub-audio segments using their external speakers, this application enables audio interaction between multiple vehicles, creating effects such as crosstalk, symphonic music, or choral music, further enhancing the driving experience.

[0042] like Figure 1 The diagram shown is a schematic of a vehicle voice interaction system provided in an embodiment of this application, which includes multiple vehicles 10 and management devices 20.

[0043] The management device 20 is used to obtain the playback information when it is determined that multiple vehicles 10 have successfully teamed up, and to send the playback information to each vehicle 10. The playback information includes multiple sub-audio, as well as the playback time period corresponding to each sub-audio and the vehicle 10 identifier. Multiple sub-audio consists of one audio.

[0044] The management device 20 can be a server or cloud server, or it can be a vehicle host, terminal device, vehicle network box, or mobile device. Specifically, the mobile device can be a smartphone, laptop, or smartwatch. This application's embodiments are not specifically limited in their application.

[0045] One of the audio recordings can be a crosstalk performance, a symphony, or a choral piece, etc., and this application does not limit this.

[0046] It should be noted that the management device 20 can also pre-send the playback information to each vehicle 10 when it confirms that the vehicles 10 have been successfully assembled. Each vehicle 10 will then store the received playback information locally. When needed, each vehicle 10 can retrieve the corresponding playback information from its local storage.

[0047] Each vehicle 10, upon receiving the information to be played, determines the target sub-audio from multiple sub-audio based on the corresponding vehicle 10 identifier, and, under preset conditions, maps the playback time period corresponding to each sub-audio according to the current standard time to obtain the playback time corresponding to each playback time period.

[0048] The preset conditions include the current standard time reaching a preset playback time, or all vehicles 10 being located at preset playback positions. Additionally, these preset conditions can also be, for example, the vehicle interior temperature reaching a set value, vehicle 10 entering a set position, or vehicle 10 experiencing a collision. Furthermore, these preset conditions can be manually triggered, for example, by a hardware or software switch or voice request on the management device 20, on the vehicle 10, or on the in-vehicle terminal. These preset conditions constitute the trigger conditions for the start of voice interaction.

[0049] Similarly, the termination of external voice interaction can be triggered manually, by time, or by status. Manual termination can be achieved through a hardware or software switch, or by a voice request, either from the management backend, on the vehicle, or on a mobile terminal. Conditional termination can be triggered by time conditions, such as the end of a countdown or the arrival of a set time. Status-based termination can also be triggered by factors such as vehicle speed not being zero, a gear shift, the interior temperature reaching a set value, or the vehicle entering a set location.

[0050] It should be noted that the sub-audio in the information to be played includes the corresponding playback time period, which can be 0-t1 or t1-t2. Therefore, after receiving the information to be played, vehicle 10 needs to map each playback time period according to the current standard time to obtain the actual playback time corresponding to each playback time period.

[0051] For example, GPS time information can be obtained from each vehicle 10, and the current time of each vehicle 10 can be calibrated based on the GPS time information to obtain the current standard time.

[0052] Among them, GPS (Global Positioning System) is the world's most comprehensive satellite navigation system. It not only provides real-time, continuous, high-precision three-dimensional positioning capabilities covering the entire globe, but also offers accurate time synchronization. Utilizing highly stable and precise onboard atomic clocks as signal sources for time transmission and comparison has become a crucial means of obtaining time in numerous fields. By using GPS time signals transmitted from highly stable atomic clocks installed on satellites, time discrepancies between multiple vehicles can be resolved.

[0053] Each vehicle 10 is also used to play the target sub-audio at the corresponding playback time using the external speaker of the vehicle 10.

[0054] The external speaker can be either an external sound playback device or an internal sound playback device within the vehicle 10. When the external speaker is an external sound playback device, it can be a car alarm system or a speaker installed outside the vehicle. In this case, the target sub-audio can be played directly using the external speaker at the corresponding playback time. When the external speaker is an internal sound playback device, it can be an in-vehicle audio-visual device. In this case, the target sub-audio can be played at the corresponding playback time by opening the vehicle door or window of the vehicle 10.

[0055] The vehicle 10 audio interaction system provided in this application includes multiple vehicles 10 and a management device 20. The management device 20, upon confirming successful grouping of multiple vehicles 10, acquires playback information and sends it to each vehicle 10. The playback information includes multiple sub-audio segments, corresponding playback time periods for each sub-audio segment, and vehicle 10 identifiers. The multiple sub-audio segments constitute one audio segment. Each vehicle 10, upon receiving the playback information, determines the target sub-audio segment from the multiple sub-audio segments based on its corresponding vehicle 10 identifier. Under preset conditions, it maps the playback time periods corresponding to each sub-audio segment to the current standard time to obtain the playback time for each playback time period. Each vehicle 10 also plays the target sub-audio segment using its external speaker at the corresponding playback time. By dividing one audio segment into multiple sub-audio segments, and having multiple vehicles 10 play their respective sub-audio segments using their external speakers, this application enables audio interaction between multiple vehicles 10, creating audio effects such as crosstalk, symphony, or choral music, further enhancing the driving experience.

[0056] Optionally, an audio track can consist of multiple audio tracks, so the aforementioned sub-audio tracks can be audio tracks. Correspondingly, the management device 20 is specifically used to: when it is determined that multiple vehicles 10 have successfully teamed up, assign an audio track and a playback time period to each vehicle 10, and obtain the playback information based on the playback time period corresponding to each audio track and the vehicle 10 identifier, with each audio track corresponding to the same playback time period.

[0057] For example, such as Figure 2 As shown, for example, if an audio clip is a crosstalk performance, it can be split into two audio tracks. Track 1 can be the voice of performer A, and track 2 can be the voice of performer B. Therefore, when the management device 20 confirms that the vehicle group 10 is successful, it needs to determine the identifier of the vehicle 10 corresponding to each audio track, and then associate each audio track with the corresponding vehicle 10 identifier to obtain the playback information.

[0058] It should be noted that an audio track includes a complete playback period, and the playback period of each track is the same as that of an audio track.

[0059] Optionally, an audio file can consist of audio from multiple playback time periods; therefore, the aforementioned sub-audio file can be audio from a single playback time period. Correspondingly, the management device 20 is specifically used to: when it is determined that multiple vehicles 10 have successfully grouped together, assign audio from a corresponding playback time period to each vehicle 10, and obtain the playback information based on the vehicle 10 identifier corresponding to the audio from each playback time period.

[0060] For example, such as Figure 3 As shown, an audio file can be split into multiple audio segments, each including a corresponding playback time period. When the management device 20 confirms that the 10 vehicle groups are successful, it needs to determine the playback time period corresponding to each vehicle 10, and then associate each playback time period with the corresponding vehicle 10 identifier to obtain the playback information.

[0061] It should be noted that an audio file includes a complete playback period. When the above sub-audio files are audio files within a playback period, the playback period of each sub-audio file is a part of the playback period of the audio file.

[0062] Optionally, when the above sub-audio is audio within a playback time period, each vehicle 10 can play the target audio using its external speaker at the corresponding playback time by: obtaining the target playback volume of the target sub-audio, and then using the external speaker of the vehicle 10 to play the target sub-audio according to the target playback volume at the corresponding playback time, while the other sub-audio besides the target sub-audio are played at a preset volume.

[0063] Understandably, when the aforementioned sub-audio segments constitute a single playback time period, the remaining sub-audio segments (excluding the target sub-audio) can be played at a lower volume, while the target sub-audio is played at a higher volume. This allows each vehicle to play audio within its corresponding time period, with only 10 sub-audio segments playing. Figure 3 As shown, vehicle A has a high volume during the time interval t0-t1, a low volume during the time interval t1-t2, and a high volume during the time interval t2-t3. Vehicle B has a low volume during the time interval t0-t4, a high volume during the time interval t4-t5, and a low volume during the time interval t5-t6. During the time interval t0-T, vehicles A and B mix to produce a specific audio effect.

[0064] Optionally, the specific process by which the management device 20 determines that multiple vehicles 10 have successfully teamed up can be as follows: receiving teaming requests sent by each vehicle 10, the teaming requests including the location information of each vehicle 10, determining the distance between two vehicles 10 based on the location information of any two vehicles 10, and determining that multiple vehicles 10 have successfully teamed up when all distances are less than a preset threshold.

[0065] Simultaneously, the management device 20 will also return status information regarding whether the platooning was successful to each vehicle 10 based on their platooning requests. Each vehicle 10 then determines whether the platooning was successful based on the status information.

[0066] Specifically, vehicles can form teams using wireless network teaming technologies, including mobile communication technologies, Bluetooth, Wi-Fi hotspots, and ultra-wideband. A teaming request is initiated from the management backend, the vehicle, or the interactive terminal. Teaming can be done using a single wireless network or a combination of multiple wireless technologies. During the actual teaming process, the management backend sends a teaming notification to the vehicle or interactive terminal. The vehicle or interactive terminal receives the teaming notification. The vehicle or interactive terminal then joins the team from the management backend, the vehicle, or the interactive terminal. After receiving the request, the management backend arbitrates the request; if the conditions are not met, teaming is denied. The management backend then sends a teaming status notification to the vehicle or mobile terminal.

[0067] like Figure 4 As shown, this application embodiment also provides a vehicle voice interaction method, applied to the above-mentioned vehicle voice interaction system, the method comprising the following steps:

[0068] Step 401: When the management device confirms that multiple vehicles have successfully teamed up, it obtains the information to be played and sends the information to be played to each vehicle.

[0069] The information to be played includes multiple sub-audio segments, as well as the playback time period and vehicle identification corresponding to each sub-audio segment. Multiple sub-audio segments are combined into one audio segment.

[0070] Step 402: After receiving the information to be played, each vehicle determines the target sub-audio from multiple sub-audio based on the corresponding vehicle identifier, and under preset conditions, maps the playback time period corresponding to each sub-audio according to the current standard time to obtain the playback time corresponding to each playback time period.

[0071] Step 403: Each vehicle uses its external speaker to play the target sub-audio at the corresponding playback time.

[0072] Optionally, an audio file can consist of multiple audio tracks, with sub-audio files being audio tracks.

[0073] When the management device confirms that multiple vehicles have successfully formed a platoon, it obtains the information to be played, including:

[0074] When the management equipment confirms that multiple vehicles have successfully formed a platoon, it assigns an audio track and a playback time period to each vehicle. Based on the playback time period corresponding to each audio track and the vehicle identifier, it obtains the playback information. The playback time periods corresponding to each audio track are the same.

[0075] Optionally, an audio file can be composed of audio from multiple playback time segments, and a sub-audio file can be an audio file from a single playback time segment.

[0076] When the management device confirms that multiple vehicles have successfully formed a platoon, it obtains the information to be played, including:

[0077] When the management device confirms that multiple vehicles have successfully formed a platoon, it assigns audio for each vehicle to a corresponding playback time period and obtains the playback information based on the vehicle identifier corresponding to the audio for each playback time period.

[0078] Optionally, each vehicle may use its external speaker to play the target sub-audio at a corresponding playback time, including:

[0079] Get the target playback volume of the target sub-audio;

[0080] Using the vehicle's external speaker, the target sub-audio is played at the corresponding playback time according to the target playback volume, while the other sub-audio audios besides the target sub-audio are played at a preset volume.

[0081] Optionally, the management device determines that multiple vehicles have successfully formed a platoon, including:

[0082] Receive team-up requests from each vehicle, which include the location information of each vehicle. Determine the distance between any two vehicles based on their location information. If all distances are less than a preset threshold, the team-up of multiple vehicles is confirmed to be successful.

[0083] Optionally, before mapping the playback time segments corresponding to each sub-audio segment according to the current standard time, the method further includes:

[0084] Obtain GPS time information and calibrate the current time of each vehicle based on the GPS time information to obtain the current standard time.

[0085] Optional preset conditions include: the current standard time has reached the preset playback time, or all vehicles are located at the preset playback position.

[0086] The vehicle audio interaction method provided in this application uses a management device to acquire playback information when multiple vehicles have successfully teamed up, and sends the playback information to each vehicle. The playback information includes multiple sub-audio segments, a corresponding playback time period for each sub-audio segment, and a vehicle identifier. The multiple sub-audio segments form a single audio segment. Upon receiving the playback information, each vehicle determines the target sub-audio segment from the multiple sub-audio segments based on its corresponding vehicle identifier. Under preset conditions, it maps the playback time period corresponding to each sub-audio segment to the current standard time, obtaining the playback time for each playback time period. Each vehicle then plays the target sub-audio segment using its external speaker at the corresponding playback time. By dividing a single audio segment into multiple sub-audio segments, and having multiple vehicles play their respective sub-audio segments using their external speakers, this application enables audio interaction between multiple vehicles, creating audio effects such as crosstalk, symphony, or choral music, further enhancing the driving experience.

[0087] For specific limitations on vehicle voice interaction methods, please refer to the limitations on vehicle voice interaction systems mentioned above, which will not be repeated here.

[0088] In the above embodiments, implementation can be achieved, in whole or in part, through software, hardware, firmware, or any combination thereof. When implemented using software programs, implementation can be, in whole or in part, in the form of a computer program product. This computer program product includes one or more computer instructions. When these computer instructions are loaded and executed on a computer, all or part of the flow or function according to the embodiments of this application is generated. The computer can be a general-purpose computer, a special-purpose computer, a computer network, or other programmable device. The computer instructions can be stored in a computer-readable storage medium or transmitted from one computer-readable storage medium to another. For example, computer instructions can be transmitted from one website, computer, server, or data center to another via wired (e.g., coaxial cable, fiber optic, digital subscriber line (DSL)) or wireless (e.g., infrared, wireless, microwave, etc.) means. The computer-readable storage medium can be any available medium accessible to a computer or a data storage device containing one or more servers, data centers, etc., that can be integrated with the medium. The available media can be magnetic media (e.g., floppy disks, hard disks, magnetic tapes), optical media (e.g., DVDs), or semiconductor media (e.g., solid-state disks, SSDs).

[0089] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0090] The above embodiments merely illustrate several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the invention patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. A vehicle voice interaction system, characterized in that, The system includes multiple vehicles and management equipment; The management device is used to obtain playback information when it is determined that the multiple vehicles have successfully formed a platoon, and to send the playback information to each of the vehicles. The playback information includes multiple sub-audio files, as well as the playback time period and vehicle identifier corresponding to each sub-audio file, and the multiple sub-audio files form an audio file. Each of the vehicles is configured to, upon receiving the information to be played, determine the target sub-audio from the plurality of sub-audio based on the corresponding vehicle identifier, and, under preset conditions, map the playback time period corresponding to each of the sub-audio based on the current standard time to obtain the playback time corresponding to each of the playback time periods; Each of the vehicles is also configured to play the target sub-audio using the vehicle's external speaker at a corresponding playback time; The audio is composed of audio from multiple playback time periods, and the sub-audio is audio from one playback time period. The management device is specifically used to: when it is determined that the multiple vehicles have successfully formed a platoon, assign audio to each vehicle under a corresponding playback time period, and obtain the playback information based on the vehicle identifier corresponding to the audio under each playback time period.

2. The system according to claim 1, characterized in that, An audio file consists of multiple audio tracks, and a sub-audio file is one of those audio tracks. The management device is specifically used to: when it is determined that the multiple vehicles have successfully formed a team, assign an audio track and a playback time period to each vehicle, and obtain the playback information according to the playback time period corresponding to each audio track and the vehicle identifier, wherein the playback time period corresponding to each audio track is the same.

3. The system according to claim 1, characterized in that, The vehicles described are specifically used for: Obtain the target playback volume of the target sub-audio; Using the vehicle's external speaker, the target sub-audio is played during the corresponding playback time period according to the target playback volume, and the other sub-audio audios, excluding the target sub-audio audio, are played at a preset volume.

4. The system according to any one of claims 1-3, characterized in that, The management device is specifically used for: The system receives team-up requests from each vehicle, the team-up requests including the location information of each vehicle, determines the distance between two vehicles based on the location information of any two vehicles, and determines that the multiple vehicles have successfully teamed up when all distances are less than a preset threshold.

5. The system according to any one of claims 1-3, characterized in that, The vehicles described herein are also used for: Obtain the Global Positioning System (GPS) time information, and calibrate the current time of each vehicle based on the GPS time information to obtain the current standard time.

6. The system according to any one of claims 1-3, characterized in that, The preset conditions include: the current standard time reaches the preset playback time, or all the vehicles are located at the preset playback position.

7. A method for voice interaction in a vehicle, characterized in that, The method, applied to the voice interaction system of the vehicle according to any one of claims 1-6, comprises: When the management device determines that multiple vehicles have successfully formed a platoon, it obtains the information to be played and sends the information to be played to each of the vehicles. The information to be played includes multiple sub-audio files, as well as the playback time period and vehicle identifier corresponding to each sub-audio file. The multiple sub-audio files form one audio file. After receiving the information to be played, each vehicle determines the target sub-audio from the multiple sub-audio according to the corresponding vehicle identifier, and under preset conditions, maps the playback time period corresponding to each sub-audio according to the current standard time to obtain the playback time corresponding to each playback time period. Each of the vehicles uses its external speaker to play the target sub-audio at a corresponding playback time; The audio is composed of audio from multiple playback time periods, and the sub-audio is audio from one playback time period. When the management device determines that the multiple vehicles have successfully formed a platoon, it obtains the information to be played, including: When the management device determines that the multiple vehicles have successfully formed a platoon, it assigns audio for each vehicle within a corresponding playback time period and obtains the playback information based on the vehicle identifier corresponding to the audio within each playback time period.

8. The method according to claim 7, characterized in that, An audio file consists of multiple audio tracks, and a sub-audio file is one of those audio tracks. When the management device determines that the multiple vehicles have successfully formed a platoon, it obtains the information to be played, including: When the management device determines that the multiple vehicles have successfully formed a group, it assigns an audio track and a playback time period to each vehicle. Based on the playback time period corresponding to each audio track and the vehicle identifier, it obtains the playback information. The playback time periods corresponding to each audio track are the same.

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