Loudspeaker equipment capable of changing sound field direction, control method of vehicle sound equipment and vehicle

Abstract

The embodiment of the invention relates to the technical field of vehicles, and discloses loudspeaker equipment capable of changing the sound field direction, a control method of vehicle sound equipment and a vehicle. The loudspeaker equipment comprises a cover body, a rotating shaft arranged on the cover body, a loudspeaker unit and a first motor, the rotating shaft is rotationally connected with the sound production end of the loudspeaker unit and used for fixing the loudspeaker unit, and the first motor is arranged on the cover body. The first motor is in transmission connection with the non-sounding end of the loudspeaking unit and is used for changing the orientation of the sounding end of the loudspeaking unit. By applying the technical scheme of the invention, the number of loudspeakers can be greatly reduced on the premise that the use experience of the sound equipment is not reduced, so that the vehicle cost is reduced.

Description

Technical Field

[0001] The embodiments of the present invention relate to the field of vehicle technology, and more particularly to a speaker device with variable sound field direction, a method for controlling vehicle audio, and a vehicle. Background Art

[0002] Currently, more and more car owners prefer leisure and entertainment travel, and the need to listen to music and watch movies is indispensable. At the same time, car owners also pay attention to the quality of audio and video display, which leads to the continuous increase in the number of speakers in vehicles to meet the requirements of car owners.

[0003] However, increasing the number of speakers significantly increases the cost of the vehicle and also results in excessive consumption of resources such as electricity. Therefore, how to design a low-cost, flexibly tuned speaker device has become a technical problem that needs to be solved urgently. Summary of the Invention

[0004] In view of the above problems, embodiments of the present invention provide a speaker device with variable sound field direction, a vehicle audio control method, and a vehicle to solve technical problems in the prior art such as increased production costs caused by an increase in the number of speaker units.

[0005] According to one aspect of an embodiment of the present invention, there is provided a speaker device with variable sound field direction, comprising: a housing, a rotating shaft provided on the housing, a speaker unit, and a first motor;

[0006] The rotating shaft is rotatably connected to the sound-emitting end of the speaker unit and is used to fix the speaker unit;

[0007] The first motor is in transmission connection with the non-sound-generating end of the speaker unit and is used to change the direction of the sound-generating end of the speaker unit.

[0008] According to another aspect of an embodiment of the present invention, a method for controlling vehicle audio is provided. The vehicle is provided with at least one loudspeaker device with a variable sound field direction as described above. The method is applied to any control unit that controls a first motor in the loudspeaker device. The method includes:

[0009] Obtaining a control request corresponding to a user's audio selection operation, wherein the control request carries a target audio usage scenario;

[0010] Determining a target rotation angle of the speaker device in a mapping relationship based on the target audio usage scenario, wherein the mapping relationship records a correspondence between at least one rotation angle corresponding to the speaker device and at least one audio usage scenario;

[0011] The first motor is driven according to the target rotation angle.

[0012] According to another aspect of an embodiment of the present invention, a vehicle audio control device is provided, wherein the vehicle is provided with at least one loudspeaker device with a variable sound field direction, and the device is used to control a control unit of a first motor in the loudspeaker device, the device comprising:

[0013] An acquisition module is configured to acquire a control request corresponding to a user's audio selection operation, wherein the control request carries a target audio usage scenario;

[0014] a determination module configured to determine, based on the target audio usage scenario, a target rotation angle of the speaker device in a mapping relationship, wherein the mapping relationship records a correspondence between at least one rotation angle corresponding to the speaker device and at least one audio usage scenario;

[0015] A driving module is configured to drive the first motor according to the target rotation angle.

[0016] According to another aspect of an embodiment of the present invention, there is provided an electronic device, comprising: a processor, a memory, a communication interface, and a communication bus, wherein the processor, the memory, and the communication interface communicate with each other via the communication bus;

[0017] The memory is used to store at least one executable instruction, and the executable instruction enables the processor to execute the operation of the vehicle audio control method as described above.

[0018] According to another aspect of an embodiment of the present invention, a vehicle is provided, comprising: at least one loudspeaker device with variable sound field direction as described above.

[0019] According to another aspect of the present invention, a computer-readable storage medium is provided, wherein the storage medium stores at least one executable instruction, wherein the executable instruction enables a control device of an electronic device / vehicle audio to perform the operation of the vehicle audio control method as described above.

[0020] According to another aspect of the present invention, a computer program product is provided, including a computer program. When the computer program is executed by a processor, the computer program causes a vehicle audio control device / electronic device to execute the above vehicle audio control method.

[0021] In the speaker device with variable sound field direction provided by an embodiment of the present invention, the housing serves as the basic supporting structure, and the rotating shaft is connected to the sound-emitting end of the speaker unit, which can both firmly fix the speaker unit and allow it to rotate, providing the possibility of flexible adjustment of the speaker unit; the first motor is connected to the non-sound-emitting end of the speaker unit, and the speaker unit can be driven by the first motor to rotate, thereby achieving precise change in the direction of the sound-emitting end of the speaker unit. Compared with the traditional arrangement of multiple speakers, the speaker unit in this solution can change the direction of sound propagation by rotation, achieving multi-angle and multi-directional sound coverage, meeting the needs of car owners for audio experience in different scenarios. Without reducing the audio experience, the number of speakers can be greatly reduced, thereby reducing vehicle costs, effectively solving the original technical problems, and achieving the dual goals of improving experience and controlling costs.

[0022] The above description is only an overview of the technical solutions of the embodiments of the present invention. In order to more clearly understand the technical means of the embodiments of the present invention, they can be implemented in accordance with the contents of the specification. In order to make the above and other purposes, features and advantages of the embodiments of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are specifically listed below. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The accompanying drawings are only used to illustrate the embodiments and are not to be considered as limiting the present invention. In addition, the same reference symbols are used to represent the same components throughout the drawings. In the drawings:

[0024] Figure 1 A schematic structural diagram of a first embodiment of a loudspeaker device with variable sound field direction provided by the present invention is shown;

[0025] Figure 2 A schematic structural diagram showing a second embodiment of a loudspeaker device with variable sound field direction provided by the present invention;

[0026] Figure 3 A schematic structural diagram showing a third embodiment of a loudspeaker device with variable sound field direction provided by the present invention;

[0027] Figure 4 A schematic diagram showing the distance between the speaker unit and the housing in the speaker device with variable sound field direction provided by the present invention;

[0028] Figure 5 A schematic structural diagram of a housing in a loudspeaker device with variable sound field direction provided by the present invention is shown;

[0029] Figure 6 A schematic structural diagram of a fourth embodiment of a loudspeaker device with variable sound field direction provided by the present invention is shown;

[0030] Figure 7A schematic structural diagram of a fifth embodiment of a loudspeaker device with variable sound field direction provided by the present invention is shown;

[0031] Figure 8 A schematic diagram showing the connection between the drive board and the first motor provided by the present invention is shown;

[0032] Figure 9 A flow chart showing a first embodiment of a vehicle audio control method provided by the present invention;

[0033] Figure 10 A schematic diagram of controlling a loudspeaker device for a variable sound field direction in a vehicle is shown;

[0034] Figure 11 A flow chart showing a second embodiment of the vehicle audio control method provided by the present invention;

[0035] Figure 12 A schematic structural diagram of an embodiment of a vehicle provided by the present invention is shown;

[0036] Figure 13 A schematic structural diagram of an embodiment of a vehicle audio control device provided by the present invention is shown;

[0037] Figure 14 A schematic structural diagram of an embodiment of an electronic device provided by the present invention is shown. DETAILED DESCRIPTION

[0038] The exemplary embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. Although exemplary embodiments of the present invention are shown in the drawings, it should be understood that the present invention can be implemented in various forms and should not be limited to the embodiments set forth herein.

[0039] With the development of intelligent and multifunctional vehicles, consumers' pursuits have also become more diversified and their requirements have become higher. There are many models now, and all kinds of functions are expected to be integrated. However, for car companies, unnecessary function reduction and cost saving are the top priorities. At the same time, good functions are more attractive to car owners.

[0040] More and more car owners are enjoying leisure and entertainment while traveling, and listening to music and watching movies are essential. They also pay attention to the quality of the audio and video. Vehicles now have multiple speakers (e.g., around 30) to easily tune the sound quality to meet the needs of car owners.

[0041] Accordingly, the following technical problems exist when configuring too many speakers:

[0042] 1. Current sound effects adjustments rely on the number of speakers, software debugging, and location layout. This means that for a specific car, the only way to adjust the sound system is through software debugging.

[0043] 2. It is impossible to take into account multiple sound effects scenarios, and in order to pursue sound effects, the cost of the number of speakers is also very high.

[0044] Based on the above technical problems, the technical concept of the present invention is as follows: When users were thinking about how to resolve the contradiction between increasing the car owner's audio experience and the rising cost of the vehicle, they found that the traditional method of increasing the number of speakers to improve the experience has cost disadvantages. Based on this, the user started from the perspective of adjusting the sound direction of the speaker unit, and thought of fixing the sound-emitting end of the speaker unit with a rotating shaft, so that it can maintain stability while having a basis for rotation; and using a motor to drive the non-sound-emitting end of the speaker unit to rotate, converting the motor power into the rotation of the speaker unit, so as to accurately control the direction of the sound-emitting end. In this way, multi-angle sound coverage can be achieved with only one speaker unit, replacing the function of multiple speakers, which not only meets the need to improve the experience but also avoids a significant increase in cost. This is how this innovative technical solution was conceived.

[0045] The technical solution of the present invention is described in detail below through the following embodiments. It should be noted that the following specific embodiments can be combined with each other, and the same or similar concepts or processes may not be repeated in some embodiments.

[0046] In the first aspect, an embodiment of a loudspeaker device with variable sound field direction:

[0047] Figure 1 FIG. 1 is a schematic structural diagram of a first embodiment of a loudspeaker device with a variable sound field direction provided by the present invention. Figure 1 As shown, the speaker device with variable sound field direction may include: a housing 11, a rotating shaft 12 provided on the housing 11, a speaker unit 13, and a first motor 14;

[0048] Optionally, the rotating shaft 12 is rotatably connected to the sound-emitting end of the speaker unit 13 to fix the speaker unit 13;

[0049] In this implementation, the rotating shaft 12 fixes the sound-emitting end of the speaker unit 13 and also allows the sound-emitting end of the speaker unit 13 to move in different directions.

[0050] Among them, the sounding end is Figure 1 The end where the middle grid is located.

[0051] Optionally, the first motor 14 is in transmission connection with the non-sound-emitting end of the speaker unit 13 , and is used to change the direction of the sound-emitting end of the speaker unit 13 .

[0052] Figure 2 FIG. 2 shows a schematic structural diagram of a second embodiment of a loudspeaker device with a variable sound field direction provided by the present invention. Figure 2 As shown, a guide groove 131 is provided on the speaker unit 13 .

[0053] The gear 141 of the first motor 14 is engaged with the guide slot 131 to change the direction of the sound-emitting end of the speaker unit 13 .

[0054] The arrows indicate that the gear 141 drives the guide slot 131 in forward or reverse rotation to achieve the change of the sound-emitting end of the speaker unit 13 to the left or right.

[0055] exist Figure 2 In the illustrated embodiment, the first motor 14 is disposed outside the speaker unit 13 , and the guide groove 131 is disposed outside the non-sound emitting end of the speaker unit 13 .

[0056] Specific installation method, Figure 2 This is one of the options, and it can also be set up to 90 degrees, etc., which can be determined based on the internal structure of the actual vehicle.

[0057] In actual implementation, you can also Figure 3 The structure shown is implemented, that is, Figure 3 FIG. 1 is a schematic structural diagram of a third embodiment of a loudspeaker device with a variable sound field direction provided by the present invention. Figure 3 As shown, the first motor 14 is disposed inside the speaker unit 13 , and the guide groove 131 is disposed inside the non-sound emitting end of the speaker unit 13 .

[0058] In this implementation, the first motor 14 is arranged inside the speaker unit 13, which can greatly save the use space of the vehicle. The specific installation method is: Figure 3 It is one of them, and it can also be set up with a 90° tilt, etc., which can be determined based on the internal size of the actual speaker unit 13, etc.

[0059] Correspondingly, the control unit 62 and the driving board 61 described below are also disposed inside the speaker unit 13 .

[0060] It should be understood that there is no limitation on the shapes and materials of the housing 11 , the rotating shaft 12 , the speaker unit 13 , the first motor 14 , etc., and the illustrations in the embodiments of the present invention are only examples.

[0061] Optional, Figure 4 FIG. 1 shows a schematic diagram of the distance between the speaker unit and the housing in the speaker device with variable sound field direction provided by the present invention, as shown in FIG. Figure 4 As shown, the distance between the speaker unit 13 and the cover body 11 is greater than 0 during the rotation process.

[0062] For example, Figure 4 As an example, the left side of the figure shows the distance H1 between the speaker unit 13 and the housing 11; Figure 4 The middle figure is taken as an example, which shows the distance H2 between the speaker unit 13 and the cover 11 when the speaker unit 13 is facing downward; Figure 4 Taking the figure on the right side as an example, it shows the distance H3 between the speaker unit 13 and the cover body 11 when the speaker unit 13 is facing upward.

[0063] The values ​​of H1, H2, and H3 mentioned above may all be greater than 0, so as to avoid damage caused by the speaker unit 13 coming into contact with the cover 11 during the rotation process.

[0064] It should be understood that in actual implementation, based on the different arrangements of the rotating shaft 12 on the cover 11 , the possible orientations of the speaker unit 13 may also be different.

[0065] In a possible implementation, the cover 11 and the interior structure of the vehicle can be integrated into one.

[0066] That is, the rotating shaft 12 can be arranged on the interior structure of the vehicle to save the space occupied by the speaker equipment in the vehicle and to be more beautiful.

[0067] For example, the interior structure of a vehicle may include: the shape of the instrument panel, the outline of the door trim panel, the location of the ceiling installation, etc.

[0068] Optionally, the maximum rotatable angle of the speaker unit 13 is a first angle, which is determined based on the interior structure of the vehicle and / or the sound effect of the speaker device.

[0069] In this implementation, the vehicle's interior structure is used as an example to determine the physical rotational limits of the speaker unit 13. That is, if the rotation angle is too large, the speaker unit may interfere with interior components, or be limited by the travel limit of the shaft mechanical structure.

[0070] Taking the sound effect of a speaker as an example, the angle range can be limited based on acoustic logic. For example, excessive elevation may cause high-frequency reflection distortion, and horizontal rotation beyond a certain range may cause a blind spot in the sound field coverage. The maximum deflection threshold that does not affect the sound quality must be determined through acoustic simulation (such as beamforming simulation) or actual measurement.

[0071] When the above two points are determined together, it can ensure that the speaker unit 13 can achieve a balance between angle adjustment and sound quality performance in a safe physical space, avoiding the risk of mechanical collision and optimizing the sound propagation efficiency in different scenarios through angle adjustment (such as driving seat focusing, vehicle-wide diffusion, etc.).

[0072] Optionally, the cover 11 is provided on an interior structure of the vehicle. Figure 5 The figure shows the structure of the cover in the loudspeaker device with variable sound field direction provided by the present invention. Figure 5 As shown, the cover body 11 will be described in detail.

[0073] For example, Figure 5 The left side of the figure is the side of the cover facing the interior of the vehicle, for example, the front; Figure 5 The right side figure is the back side of the left side figure, and a rotating shaft 12 may be provided.

[0074] In the speaker device with variable sound field direction provided by an embodiment of the present invention, the housing serves as the basic supporting structure, and the rotating shaft is connected to the sound-emitting end of the speaker unit, which can both firmly fix the speaker unit and allow it to rotate, providing the possibility of flexible adjustment of the speaker unit; the gear of the first motor engages with the guide groove of the non-sound-emitting end of the speaker unit, and the first motor drives the gear to rotate. With the help of the constraint of the guide groove, the direction of the sound-emitting end of the speaker unit can be precisely changed. Compared with the traditional arrangement of multiple speakers, the speaker unit in this solution can change the direction of sound propagation by rotation, achieving multi-angle and multi-directional sound coverage, meeting the needs of car owners for audio experience in different scenarios. Without reducing the audio experience, the number of speakers can be greatly reduced, thereby reducing vehicle costs, effectively solving the original technical problems, and achieving the dual goals of improving experience and controlling costs.

[0075] Based on the above embodiments, Figure 6 FIG. 4 is a schematic structural diagram of a fourth embodiment of a loudspeaker device with variable sound field direction provided by the present invention. Figure 6 As shown, the rotating shaft 12 includes: a first rotating shaft 121 and a second rotating shaft 122;

[0076] Optionally, the first rotating shaft 121 is rotatably connected to the first point A of the sound-emitting end, and the second rotating shaft 122 is rotatably connected to the second point B of the sound-emitting end, for fixing the speaker unit 13 when the direction of the sound-emitting end of the speaker unit 13 changes;

[0077] In this implementation, the first point A and the second point B are set at the upper and lower positions as an example. In actual implementation, considering the installation angle of the speaker device on the vehicle, only the center point O is used as the center of the circle, and any situation such as left and right position setting is set.

[0078] In one possible implementation, the first point A is symmetrical to the second point B through the center point O of the sound-emitting end; that is, the line between the first point A and the second point B can intersect with the dotted line L, where the dotted line L is a line passing through the center point to ensure the stability of the speaker unit 13.

[0079] In addition, the wire harness 63 of the speaker unit 13 can enter from the slot provided on the non-sound emitting end to enable the audio data to be transmitted through the wire harness.

[0080] In the loudspeaker device with variable sound field direction provided by an embodiment of the present invention, the rotating shaft includes: a first rotating shaft and a second rotating shaft; the first rotating shaft is rotationally connected to the first point of the sound-emitting end, and the second rotating shaft is rotationally connected to the second point of the sound-emitting end, for fixing the loudspeaker unit when the direction of the sound-emitting end of the loudspeaker unit changes; wherein the first point is symmetrical to the second point through the center point of the sound-emitting end. In this solution, the rotating shaft is designed to be rotationally connected by the first rotating shaft and the first point of the sound-emitting end, and the second rotating shaft and the second point, and the two points are symmetrically distributed based on the center point of the sound-emitting end, forming a stable double-point support structure; when the direction of the sound-emitting end of the loudspeaker unit changes, the symmetrically distributed double rotating shafts can evenly disperse the force, effectively avoiding the loudspeaker unit from shaking, deflecting or being damaged due to uneven force, ensuring that it can maintain a stable state at different angles, thereby ensuring the stability and accuracy of sound propagation, improving the user experience and reliability of the loudspeaker unit, and extending the service life of the loudspeaker unit.

[0081] Based on the above embodiments, Figure 7 FIG. 5 shows a schematic structural diagram of a fifth embodiment of a loudspeaker device with variable sound field direction provided by the present invention. Figure 7 As shown, the loudspeaker device with variable sound field direction further includes: a driving board 61 and a control unit 62;

[0082] Optionally, the driving board 61 is fixedly connected to the speaker unit 13 and the first motor 14 respectively;

[0083] Furthermore, a control unit 62 is provided on the driving board 61 . The control unit 62 is configured to control the first motor 14 via the driving board 61 upon receiving a control request, so as to change the direction of the sound emitting end of the speaker unit 13 .

[0084] In this implementation, the driver board 61 serves as a hardware carrier, and the control unit 62 integrated thereon, when the control unit 62 receives a control request sent from the outside (such as an instruction issued by the user through a remote control or a mobile phone APP), will quickly parse the request content and convert the instruction into a specific electrical signal or control logic, and transmit it to the first motor 14 with the help of the circuit on the driver board 61.

[0085] During this process, the driving board 61 not only undertakes the task of signal transmission, but also may perform power amplification and other processing on the signal, thereby accurately controlling the operating state of the first motor 14 and realizing the angle adjustment function of the speaker unit.

[0086] For example, Figure 8 FIG. 4 shows a schematic diagram of the connection between the driving plate and the first motor provided by the present invention. Figure 8 As shown, the fixing pad 001 and the fixing pad 002 are used to fix the first motor 14 to the driving plate 61; the driving plate 61 supplies power to the first motor 14 through the power supply harness 81 to drive the gear to rotate and drive the guide slot to deflect.

[0087] For example, the number of pads is determined based on actual needs; the driving board 61 can be a PCB driving board; and the fixed pads can be motor surface mount technology (SMT) fixed pads.

[0088] In one possible implementation, the first motor is a small-power fine-tuning motor, which can be directly SMT-mounted on the driver board and arranged together with other components, such as fixed pads 001 and fixed pads 002, and can be integrated on the driver PCB board, which is convenient and practical.

[0089] The speaker device with variable sound field direction provided by the embodiment of the present invention also includes: a driving board and a control unit; the driving board is fixedly connected to the speaker unit and the first motor respectively; the control unit is provided on the driving board, and the control unit is used to control the first motor through the driving board after receiving a control request, so as to change the direction of the sound-emitting end of the speaker unit. In this technical solution, the driving board serves as a connection hub between the speaker unit and the first motor, and in combination with the control unit provided thereon, an efficient instruction transmission and execution system is constructed; when the control unit receives a control request, it can quickly convert the electrical signal into a control instruction, and accurately control the operation of the first motor through the driving board, so as to drive the sound-emitting end of the speaker unit to change its direction, thereby realizing flexible adjustment of the sound field direction, and can accurately direct the sound to the target area according to different usage scenarios and user needs, avoiding the ineffective diffusion of sound energy, significantly improving the pertinence and effectiveness of sound propagation, and bringing users a more personalized and immersive listening experience.

[0090] In the second aspect, an embodiment of a method for controlling a vehicle audio system:

[0091] Figure 9 FIG. 1 is a flow chart showing a first embodiment of a method for controlling vehicle audio provided by the present invention. Figure 9 As shown, a vehicle is provided with at least one of the above-mentioned loudspeaker devices with variable sound field direction. The control method is applied to the control unit 62 of the first motor in any loudspeaker device with variable sound field direction, such as a microcontroller unit (MCU). The vehicle audio control method includes the following steps:

[0092] Step 91: Obtain a control request corresponding to the user's audio selection operation, where the control request carries a target audio usage scenario;

[0093] In this step, when the user wants to use the vehicle's leisure and entertainment functions during the use of the vehicle, he or she can select the corresponding target audio usage scenario on the vehicle's central control screen, the vehicle's control device (such as the user's mobile phone, etc.), the vehicle's hardware buttons or knobs, etc.

[0094] At this time, the control unit in the corresponding variable sound field direction speaker device obtains the control request corresponding to the target audio usage scenario.

[0095] In one possible implementation, Figure 10 A schematic diagram of controlling a loudspeaker device for a variable sound field direction in a vehicle is shown. Figure 10 As shown, the vehicle includes six speaker devices with variable sound field directions, namely: speaker device 101 , speaker device 102 , speaker device 103 , speaker device 104 , speaker device 105 , and speaker device 106 .

[0096] Correspondingly, after each speaker device obtains the control request, the control request is parsed to obtain the corresponding target audio usage scenario.

[0097] Optionally, the audio usage scenarios corresponding to the vehicle audio can be: driving focus mode, movie watching mode, full-car entertainment mode, rear-seat rest mode, in-car meeting mode, tunnel / highway noise reduction scenarios, etc.

[0098] Step 92: Determine the target rotation angle of the speaker device in the mapping relationship according to the target audio usage scenario;

[0099] The mapping relationship records a correspondence between at least one rotation angle corresponding to the speaker device and at least one audio usage scenario;

[0100] In this step, in the control unit, one implementation is an MCU, with a lookup table (LUT) pre-burned (i.e., recording a mapping relationship), which records the rotation angle (i.e., adjustment angle) of the speaker unit under different scenarios, and saves the mapping relationship to the angle adjustment register group. During actual use, when the control unit parses the target audio usage scenario, the current rotation angle of the speaker unit can be determined from the mapping relationship and used as the target rotation angle.

[0101] In one possible implementation, combining Figure 10 , Table 1 shows a LUT table, as shown in Table 1:

[0102] Table 1

[0103]

[0104] In the implementation of the present invention, for any loudspeaker device with variable sound field direction, the corresponding control unit stores the above-mentioned LUT table, or it can only store the LUT table corresponding to the rotation angle in different usage scenarios corresponding to itself, as described below.

[0105] For example, combined with Figure 10Table 2 shows another LUT table. Taking the LUT table in the speaker device 91 as an example, as shown in Table 2:

[0106] Table 2

[0107] Audio usage scenarios Speaker device number rotation angle Driving focus mode Speaker Equipment 101 C1 Movie viewing mode Speaker Equipment 101 D1

[0108] For example, the audio usage scenario and the corresponding rotation angle can also be customized based on the car owner, and corresponding setting options can be provided on devices such as the central control screen or mobile phone.

[0109] Optionally, before step 92, the following process of determining the mapping relationship may be performed:

[0110] In the first method, if the audio usage scenario is movie viewing mode and the speaker device is located in the first area, the first angle is determined to be the rotation angle corresponding to the movie viewing mode in the mapping relationship. The first angle is the angle that causes the sound emission end of the speaker device to point toward the main driving area. The first area is the area where the speaker device is set up for the driver to receive vehicle status and / or voice prompts.

[0111] The second type is that if the audio usage scenario is movie viewing mode and the speaker device is located in the second area, the second angle is determined as the rotation angle corresponding to the movie viewing mode in the mapping relationship. The second angle is the angle that makes the sound-emitting end of the speaker device point to the co-pilot area. The second area is the speaker device setting area corresponding to the passengers receiving entertainment voice.

[0112] For example, combined Figure 10 Taking the audio system in movie viewing mode as an example, the first area (zone ①) is on the driver's side, and the second area (zone ②) is on the passenger's side. In movie viewing mode, the passenger plays movies and entertainment videos on the central control screen or the front passenger display, while the instrument panel displays vehicle status and navigation as normal (the three rectangular blocks in the figure, from left to right, are the instrument panel, central control screen, and front passenger display).

[0113] In this viewing mode, the speakers in Zone 1 primarily broadcast vehicle status and voice prompts (such as navigation prompts). This embodiment's design allows the sound field (i.e., direction) of the speakers in Zone 1 to be concentrated toward the driver's seat (i.e., the front passenger seat), with the sound waves being amplified there. Zone 2 primarily provides entertainment audio. This embodiment's design allows the sound field (i.e., direction) of the speakers in Zone 2 to be concentrated toward the front passenger seat (i.e., the front passenger seat), with the sound waves being strongest there. This minimizes interference between the sound fields in the two zones, achieving optimal sound quality.

[0114] Furthermore, after the above-mentioned embodiments related to the first region and the second region, any of the following implementations may also be performed:

[0115] The first method is to control the speaker device to play the audio to be played when the speaker device is located in the first area and detects that the audio to be played of the vehicle is in the vehicle state and / or a voice prompt;

[0116] The second type is that if the speaker device is located in the second area, when it is detected that the audio to be played in the vehicle is entertainment voice, the speaker device is controlled to play the audio to be played.

[0117] In the first method, during the operation of the vehicle, taking the case where the audio to be played is a navigation prompt tone, the audio data corresponding to the navigation prompt tone is transmitted to the speaker device in the first area, and the speaker device plays it. At this time, it does not affect the viewing experience of the passengers in the co-pilot area; if the audio to be played in the vehicle is entertainment voice, the speaker device in the second area plays it, and it does not affect the driving safety of the driver in the main driver area.

[0118] Step 93: Drive the first motor according to the target rotation angle.

[0119] In this step, after determining the target rotation angle of the corresponding speaker unit that the current speaker control unit needs to control, it can be determined based on the target rotation angle to drive the first motor to operate so as to rotate the speaker unit to the direction corresponding to the target audio usage scenario.

[0120] In one possible implementation, combining Figure 7 The puls pulse corresponding to the target rotation angle is transmitted to the MCU I / O port, and then the MCU digital-to-analog conversion is performed to an analog voltage, and the analog voltage acts on the MOS to control the running time of the first motor (to achieve the target rotation angle corresponding to the rotation of the speaker unit).

[0121] An embodiment of the present invention provides a method for controlling a vehicle audio system. A vehicle is equipped with at least one of the above-described variable-sound-field-direction speakers. The method is applied to a control unit of a first motor in any speaker device that controls a variable-sound-field-direction speaker. The method obtains a control request corresponding to a user's audio selection operation, the control request carrying a target audio usage scenario; determines a target rotation angle for the speaker device based on the target audio usage scenario in a mapping relationship, the mapping relationship recording a correspondence between at least one rotation angle corresponding to the speaker device and at least one audio usage scenario; and drives the first motor based on the target rotation angle. This technology parses the target audio usage scenario by obtaining a control request corresponding to the user's selection operation, determines the target rotation angle based on a pre-established mapping relationship, and then drives the first motor, thereby achieving intelligent and scenario-based application of the speaker device. The user does not need to manually adjust the speaker device angle; the speaker device can be automatically adjusted to the optimal sound angle according to different scenarios, ensuring that sound accurately covers the target area, effectively improving sound quality and sound transmission efficiency, and providing users with a convenient and high-quality listening experience. It also enhances the versatility and adaptability of the speaker device to meet diverse usage needs.

[0122] Based on the above embodiments, Figure 11 FIG. 1 shows a flow chart of a second embodiment of a method for controlling vehicle audio provided by the present invention, as shown in FIG. Figure 11 As shown, the vehicle audio control method may further include:

[0123] Step 111: Obtain a third angle corresponding to the driver and passenger closest to the speaker device.

[0124] The third angle is the angular deviation between the corresponding direction of the sound speaker and the direction of the driver's ear;

[0125] In this step, the vehicle's electronic control unit (ECU) and other devices can obtain the head position data of the driver or passenger closest to the corresponding direction of the speaker device obtained by the on-board camera or millimeter-wave radar, so as to obtain the driver's ear, determine the direction of the ear, and also obtain the direction of the speaker device.

[0126] Furthermore, the angular deviation between the orientation of the loudspeaker device and the direction of the driver's ear is used as a third angle, and the third angle is sent to a control unit corresponding to the loudspeaker device, which acquires the third angle.

[0127] Step 112: driving the first motor according to the third angle;

[0128] In this step, since the third angle is the angular deviation between the target rotation angle (that is, actually the corresponding direction of the speaker device in step 111) and the direction of the human ear, at this time, the first motor is controlled to rotate the third angle so that the direction of the human ear is consistent with the corresponding direction of the speaker device, so that the direction of the sound-emitting end tracks the position of the human ear in real time.

[0129] The vehicle audio control method provided by an embodiment of the present invention obtains a third angle corresponding to the driver or passenger closest to the corresponding orientation of the speaker device. The third angle is the angular deviation between the corresponding orientation of the speaker device and the direction of the driver or passenger's ear; and drives a first motor based on the third angle. By obtaining the third angle of deviation between the orientation of the speaker device and the direction of the nearest driver or passenger's ear and driving the first motor accordingly to adjust the orientation of the speaker device, the main radiation direction of the sound wave can be aligned with the position of the human ear in real time. This can effectively reduce the sound energy loss and positioning error caused by the angular deviation, improve the clarity and immersion of the sound, and reduce interference with passengers in other areas, thereby achieving a dynamic, adaptive, and personalized sound field focusing effect.

[0130] The third aspect is a vehicle embodiment:

[0131] Figure 12 A schematic structural diagram of an embodiment of a vehicle provided by the present invention is shown. Figure 10 As shown, the vehicle includes: at least one of the above-mentioned loudspeaker devices with variable sound field direction.

[0132] With the above Figure 10 For example, the vehicle may include: 6 loudspeaker devices with variable sound field directions.

[0133] From the above, it can be seen that the vehicle provided by the embodiment of the present invention can change the direction of sound propagation by rotating, achieving multi-angle and multi-directional sound coverage, meeting the owner's needs for audio experience in different scenarios; and, without reducing the audio experience, significantly reducing the number of speakers, thereby reducing vehicle costs.

[0134] In a fourth aspect, an embodiment of a vehicle audio control device:

[0135] Figure 13 The structure diagram of the embodiment of the vehicle audio control device provided by the present invention is shown. The vehicle is provided with at least one loudspeaker device with variable sound field direction as described above, and the device is used to control the control unit of the first motor in the loudspeaker device, such as Figure 13 As shown, the device includes:

[0136] An acquisition module 1301 is configured to acquire a control request corresponding to a user's audio selection operation, wherein the control request carries a target audio usage scenario;

[0137] Determining module 1302, configured to determine a target rotation angle of the speaker device in a mapping relationship based on the target audio usage scenario, wherein the mapping relationship records a correspondence between at least one rotation angle corresponding to the speaker device and at least one audio usage scenario;

[0138] The driving module 1303 is configured to drive the first motor according to the target rotation angle.

[0139] In one or more possible implementations, before determining the target rotation angle of the speaker device in the mapping relationship according to the target audio usage scenario, the determination module 1302 is further configured to:

[0140] If the audio usage scenario is movie viewing mode and the speaker device is located in the first area, the first angle is determined to be the rotation angle corresponding to the movie viewing mode in the mapping relationship. The first angle is the angle that causes the sound emission end of the speaker device to point toward the main driving area. The first area is the area where the speaker device is set up for the driver to receive vehicle status and / or voice prompts.

[0141] If the audio usage scenario is movie viewing mode and the speaker device is located in the second area, the second angle is determined as the rotation angle corresponding to the movie viewing mode in the mapping relationship. The second angle is the angle that makes the sound-emitting end of the speaker device point to the co-pilot area. The second area is the speaker device setting area corresponding to the passengers receiving entertainment voice.

[0142] In one or more possible implementations, the determining module 1302 is further configured to:

[0143] If the speaker device is located in the first area, upon detecting that the vehicle's audio to be played is in vehicle status and / or a voice prompt, controlling the speaker device to play the audio to be played;

[0144] If the speaker device is located in the second area, when it is detected that the audio to be played in the vehicle is entertainment voice, the speaker device is controlled to play the audio to be played.

[0145] In one or more possible implementations, the driver module 1303 is further configured to:

[0146] Obtaining a third angle corresponding to the driver or passenger closest to the corresponding direction of the sound speaker, where the third angle is an angular deviation between the corresponding direction of the sound speaker and the direction of the driver or passenger's ear;

[0147] The first motor is driven according to the third angle.

[0148] It should be noted that it should be understood that the division of the various modules of the above device is merely a division of logical functions. In actual implementation, they can be fully or partially integrated into one physical entity, or they can be physically separated. Moreover, these modules can all be implemented in the form of software called by a processing element. They can also all be implemented in the form of hardware. Some modules can also be implemented in the form of software called by a processing element, and some modules can be implemented in the form of hardware. In addition, these modules can all or partly be integrated together or implemented independently. The processing element here can be an integrated circuit with signal processing capabilities. During implementation, each step of the above method or each of the above modules can be completed by an integrated logic circuit of hardware in the processor element or instructions in the form of software.

[0149] As can be seen from the above, the vehicle audio control device provided by the embodiment of the present invention can parse the target audio usage scenario by obtaining the control request corresponding to the user's selection operation, determine the target rotation angle based on the pre-established mapping relationship, and then drive the first motor, thereby realizing the intelligent and scenario-based application of the speaker device; the user does not need to manually adjust the angle of the speaker device, and can automatically adjust the speaker device to the optimal sound angle according to different scenarios, ensuring that the sound can accurately cover the target area, effectively improving the sound quality and sound transmission efficiency, and bringing a convenient and high-quality listening experience to the user. At the same time, it also enhances the versatility and adaptability of the speaker device to meet diverse usage needs.

[0150] Fifth aspect, other embodiments:

[0151] Figure 14 FIG. 1 shows a schematic structural diagram of an embodiment of an electronic device provided by the present invention, as shown in FIG. Figure 14 As shown, the electronic device may be the aforementioned control unit 62 , and may include: a processor 1402 , a communications interface 1404 , a memory 1406 , and a communications bus 1408 .

[0152] Processor 1402, communication interface 1404, and memory 1406 communicate with each other via communication bus 1408. Communication interface 1404 is used to communicate with other devices, such as clients or other server network elements. Processor 1402 is used to execute program 1400, specifically, the steps described in the aforementioned embodiment of the control method for an electronic device.

[0153] Specifically, the program 1400 may include program code including computer-executable instructions.

[0154] Processor 1402 may be a central processing unit (CPU), an application-specific integrated circuit (ASIC), or one or more integrated circuits configured to implement embodiments of the present invention. The one or more processors included in an electronic device may be of the same type, such as one or more CPUs. Alternatively, they may be of different types, such as one or more CPUs and one or more ASICs.

[0155] The memory 1406 is used to store the program 1400. The memory 1406 may include a high-speed RAM memory, and may also include a non-volatile memory (non-volatile memory), such as at least one disk memory.

[0156] The program 1400 may be specifically invoked by the processor 1402 to cause the electronic device to perform the following operations:

[0157] Obtaining a control request corresponding to the user's audio selection operation, where the control request carries the target audio usage scenario;

[0158] According to the target audio usage scenario, a target rotation angle of the speaker device is determined in a mapping relationship, wherein the mapping relationship records a correspondence between at least one rotation angle corresponding to the speaker device and at least one audio usage scenario;

[0159] The first motor is driven according to the target rotation angle.

[0160] In one or more possible implementations, before determining the target rotation angle of the speaker device in the mapping relationship according to the target audio usage scenario, the following steps are further performed:

[0161] If the audio usage scenario is movie viewing mode and the speaker device is located in the first area, the first angle is determined to be the rotation angle corresponding to the movie viewing mode in the mapping relationship. The first angle is the angle that causes the sound emission end of the speaker device to point toward the main driving area. The first area is the area where the speaker device is set up for the driver to receive vehicle status and / or voice prompts.

[0162] If the audio usage scenario is movie viewing mode and the speaker device is located in the second area, the second angle is determined as the rotation angle corresponding to the movie viewing mode in the mapping relationship. The second angle is the angle that makes the sound-emitting end of the speaker device point to the co-pilot area. The second area is the speaker device setting area corresponding to the passengers receiving entertainment voice.

[0163] In one or more possible implementations, further performing:

[0164] If the loudspeaker device is located in the first area, the loudspeaker device is controlled to play the audio to be played when it is detected that the audio to be played of the vehicle is a vehicle state and / or a voice prompt.

[0165] If the loudspeaker device is located in the second area, the loudspeaker device is controlled to play the audio to be played when it is detected that the audio to be played of the vehicle is an entertainment voice.

[0166] In one or more possible implementations, the following operations are further performed:

[0167] A third angle corresponding to a direction in which the loudspeaker device faces the passenger closest to the loudspeaker device is obtained, the third angle being an angle deviation between the direction in which the loudspeaker device faces and a direction of an ear of the passenger;

[0168] The first motor is driven according to the third angle.

[0169] As can be seen from the above, the electronic device provided by the embodiments of the present application can obtain a control request corresponding to a user selection operation to analyze a target sound use scenario, determine a target rotation angle according to a pre-established mapping relationship, and then drive a first motor, thereby realizing intelligent and scenario-based application of a loudspeaker device. The user does not need to manually adjust the angle of the loudspeaker device, but can automatically adjust the loudspeaker device to an optimal sound emitting angle according to different scenarios, ensure that sound can accurately cover a target area, effectively improve sound quality and sound propagation efficiency, bring convenient and high-quality auditory experience to the user, and also enhance the universality and adaptability of the loudspeaker device, thereby meeting diversified use requirements.

[0170] The embodiments of the present application provide a computer readable storage medium, the storage medium stores at least one executable instruction, the executable instruction runs on the control device / electronic device of the vehicle sound, and the control device / electronic device of the vehicle sound executes the control method of the vehicle sound in any method embodiment.

[0171] The executable instruction can be specifically used to make the control device / electronic device of the vehicle sound execute the following operations:

[0172] Obtain a control request corresponding to a sound selection operation of a user, the control request carrying a target sound use scenario;

[0173] Determine a target rotation angle of the loudspeaker device in the mapping relationship according to the target sound use scenario, the mapping relationship recording a corresponding relationship between at least one rotation angle of the loudspeaker device and at least one sound use scenario;

[0174] Drive the first motor according to the target rotation angle.

[0175] In one or more possible implementations, before determining the target rotation angle of the loudspeaker device in the mapping relationship according to the target sound use scenario, the following operations are further performed:

[0176] If the audio usage scenario is movie viewing mode and the speaker device is located in the first area, the first angle is determined to be the rotation angle corresponding to the movie viewing mode in the mapping relationship. The first angle is the angle that causes the sound emission end of the speaker device to point toward the main driving area. The first area is the area where the speaker device is set up for the driver to receive vehicle status and / or voice prompts.

[0177] If the audio usage scenario is movie viewing mode and the speaker device is located in the second area, the second angle is determined as the rotation angle corresponding to the movie viewing mode in the mapping relationship. The second angle is the angle that makes the sound-emitting end of the speaker device point to the co-pilot area. The second area is the speaker device setting area corresponding to the passengers receiving entertainment voice.

[0178] In one or more possible implementations, further performing:

[0179] If the speaker device is located in the first area, upon detecting that the vehicle's audio to be played is in vehicle status and / or a voice prompt, controlling the speaker device to play the audio to be played;

[0180] If the speaker device is located in the second area, when it is detected that the audio to be played in the vehicle is entertainment voice, the speaker device is controlled to play the audio to be played.

[0181] In one or more possible implementations, further performing:

[0182] Obtaining a third angle corresponding to the driver or passenger closest to the corresponding direction of the sound speaker, where the third angle is an angular deviation between the corresponding direction of the sound speaker and the direction of the driver or passenger's ear;

[0183] The first motor is driven according to the third angle.

[0184] As can be seen from the above, the computer-readable storage medium provided in the embodiment of the present invention can parse the target audio usage scenario by obtaining the control request corresponding to the user's selection operation, determine the target rotation angle based on the pre-established mapping relationship, and then drive the first motor, thereby realizing the intelligent and scenario-based application of the speaker device; the user does not need to manually adjust the angle of the speaker device, and can automatically adjust the speaker device to the optimal sound angle according to different scenarios, ensuring that the sound can accurately cover the target area, effectively improving the sound quality and sound transmission efficiency, and bringing a convenient and high-quality listening experience to the user. At the same time, it also enhances the versatility and adaptability of the speaker device to meet diverse usage needs.

[0185] An embodiment of the present invention provides a computer program product, including a computer program, which implements the operations of the above-mentioned vehicle audio control method when executed by a processor.

[0186] Its implementation principle and technical effects are shown in the above disclosure.

[0187] The above description of the various embodiments tends to emphasize the differences between the various embodiments. The same or similar aspects can be referenced with each other and will not be repeated herein for the sake of brevity.

[0188] The methods disclosed in the various method embodiments provided by the present invention can be arbitrarily combined without conflict to obtain new method embodiments.

[0189] The features disclosed in the various product embodiments provided by the present invention can be arbitrarily combined without conflict to obtain new product embodiments.

[0190] The features disclosed in the various method or device embodiments provided by the present invention can be arbitrarily combined without conflict to obtain new method embodiments or device embodiments.

[0191] It should be noted that the computer-readable storage medium may be a ROM, a programmable read-only memory (PROM), an erasable programmable read-only memory (EPROM), an electrically erasable programmable read-only memory (EEPROM), a magnetic random access memory (FRAM), a flash memory, a magnetic surface mount storage device, an optical disk, or a compact disc read-only memory (CD-ROM). Various vehicles may also include any one or any combination of the above-mentioned memories.

[0192] It should be noted that, in this document, the terms "comprises," "includes," or any other variations thereof are intended to encompass non-exclusive inclusion, such that a process, method, article, or apparatus comprising a series of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus. In the absence of further limitations, an element defined by the phrase "comprising a ..." does not exclude the presence of other identical elements in the process, method, article, or apparatus comprising the element.

[0193] The serial numbers of the above embodiments of the present invention are for description only and do not represent the advantages or disadvantages of the embodiments.

[0194] Through the description of the above embodiments, those skilled in the art can clearly understand that the above-mentioned embodiment methods can be implemented by means of software plus necessary general hardware nodes, or of course by hardware, but in many cases the former is a better embodiment. Based on this understanding, the technical solution of the present invention, or the part that contributes to the prior art, can be embodied in the form of a software product. The computer software product is stored in a storage medium (such as ROM / RAM, magnetic disk, optical disk), and includes a number of instructions for enabling a terminal device (which can be a mobile phone, computer, server, air conditioner, vehicle terminal or network device, etc.) to execute the methods described in the various embodiments of the present invention.

[0195] The present invention is described with reference to flowcharts and / or block diagrams of methods, devices, apparatuses, and computer program products according to embodiments of the present invention. It should be understood that each process and / or block in the flowcharts and / or block diagrams, as well as combinations of processes and / or blocks in the flowcharts and / or block diagrams, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, a special-purpose computer, an embedded processor, or other programmable data processing device to produce a machine, so that the instructions executed by the processor of the computer or other programmable data processing device generate instructions for implementing the processes in the flowcharts and / or block diagrams. Figure 1 a process or multiple processes and / or boxes Figure 1 A device that provides the functions specified in a block or multiple blocks.

[0196] These computer program instructions may also be stored in a computer readable memory that can direct a computer or other programmable data processing device to work in a specific manner, so that the instructions stored in the computer readable memory produce an article of manufacture comprising an instruction device, which implements the process Figure 1 a process or multiple processes and / or boxes Figure 1 The function specified in one or more boxes.

[0197] These computer program instructions can also be loaded onto a computer or other programmable data processing device so that a series of operational steps are executed on the computer or other programmable device to produce a computer-implemented process, thereby providing the instructions executed on the computer or other programmable device for implementing the process. Figure 1 a process or multiple processes and / or boxes Figure 1 The algorithm or display provided herein for the steps of the functions specified in the blocks or blocks is not inherently related to any specific computer, virtual system or other device. In addition, the embodiments of the present invention are not directed to any specific programming language.

[0198] It should be noted that the above embodiments illustrate rather than limit the invention, and that alternative embodiments may be devised by a person skilled in the art without departing from the scope of the appended claims. In the claims, any reference signs placed between brackets should not be construed as limiting the claims. The word "comprising" does not exclude the presence of elements or steps not listed in the claims. The word "a" or "an" preceding an element does not exclude the presence of a plurality of such elements. The present invention may be implemented by means of hardware comprising several different elements and by means of appropriately programmed computers. In a unit claim enumerating several means, several of these means may be embodied by the same item of hardware. The use of the words first, second, and third etc. does not indicate any order. These words may be interpreted as names. The steps in the above embodiments should not be understood as limiting the order of execution unless otherwise specified.

Claims

1. A loudspeaker device with variable sound field direction, characterized in that: include: A cover body, a rotating shaft provided on the cover body, a speaker unit, and a first motor; The rotating shaft is rotatably connected to the sound-emitting end of the speaker unit and is used to fix the speaker unit; The first motor is in transmission connection with the non-sound-emitting end of the speaker unit and is used to change the direction of the sound-emitting end of the speaker unit.

2. The speaker device with variable sound field direction according to claim 1, characterized in that: The rotating shaft includes: a first rotating shaft and a second rotating shaft; The first rotating shaft is rotatably connected to a first point of the sound-emitting end, and the second rotating shaft is rotatably connected to a second point of the sound-emitting end, for fixing the speaker unit when the direction of the sound-emitting end of the speaker unit changes; The first point is symmetrical to the second point through the center point of the sound-emitting end.

3. The speaker device with variable sound field direction according to claim 1 or 2, characterized in that: Also includes: Driver board and control unit; The driving board is fixedly connected to the speaker unit and the first motor respectively; The control unit is provided on the driving board, and is configured to control the first motor via the driving board after receiving a control request, so as to change the direction of the sound-emitting end of the speaker unit.

4. The speaker device with variable sound field direction according to claim 1 or 2, characterized in that: The speaker unit is provided with a guide groove; The gear of the first motor is engaged with the guide groove to change the direction of the sound-emitting end of the speaker unit.

5. The speaker device with variable sound field direction according to claim 4, characterized in that: The first motor is arranged inside the speaker unit, and the guide groove is arranged inside the non-sound-emitting end of the speaker unit; or, The first motor is arranged outside the speaker unit, and the guide groove is arranged outside the non-sound-emitting end of the speaker unit.

6. A method for controlling vehicle audio, characterized in that: The vehicle is provided with at least one loudspeaker device with a variable sound field direction according to any one of claims 1 to 5, and the method is applied to a control unit of a first motor in any one of the loudspeaker devices with a variable sound field direction, the method comprising: Obtaining a control request corresponding to a user's audio selection operation, wherein the control request carries a target audio usage scenario; Determining a target rotation angle of the speaker device in a mapping relationship based on the target audio usage scenario, wherein the mapping relationship records a correspondence between at least one rotation angle corresponding to the speaker device and at least one audio usage scenario; The first motor is driven according to the target rotation angle.

7. The method according to claim 6, characterized in that Before determining the target rotation angle of the speaker device in the mapping relationship according to the target audio usage scenario, the method further includes: If the audio usage scenario is a movie viewing mode and the speaker device is located in a first area, the first angle is determined as the rotation angle corresponding to the movie viewing mode in the mapping relationship, the first angle being an angle that causes the sound emitting end of the speaker device to point toward the main driver's seat area, and the first area is an area where the speaker device is set so that the driver receives vehicle status and / or voice prompts; If the audio usage scenario is the movie-watching mode and the speaker device is located in the second area, the second angle is determined as the rotation angle corresponding to the movie-watching mode in the mapping relationship. The second angle is the angle that makes the sound-emitting end of the speaker device point to the co-pilot area. The second area is the speaker device setting area corresponding to the passenger receiving entertainment voice.

8. The method according to claim 7, characterized in that The method further comprises: If the speaker device is located in the first area, upon detecting that the vehicle's audio to be played is a vehicle state and / or a voice prompt, controlling the speaker device to play the audio to be played; If the speaker device is located in the second area, when it is detected that the audio to be played in the vehicle is entertainment voice, the speaker device is controlled to play the audio to be played.

9. The method according to any one of claims 6 to 8, characterized in that The method further comprises: Obtaining a third angle corresponding to a driver or passenger closest to the direction corresponding to the loudspeaker device, where the third angle is an angular deviation between the direction corresponding to the loudspeaker device and a direction toward the driver or passenger's ear; The first motor is driven according to the third angle.

10. A vehicle, characterized in that: The vehicle comprises: at least one loudspeaker device with variable sound field direction according to any one of claims 1-5.

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