Middle loudspeaker device and vehicle

Abstract

The utility model relates to a middle loudspeaker device and a vehicle, and the middle loudspeaker device comprises a loudspeaker body and an installation structure. Wherein the mounting structure is used for mounting the loudspeaker body on a vehicle; the loudspeaker body is movably connected with the mounting structure; a driving part, a control module and a communication module are arranged in the mounting structure; the driving part and the communication module are respectively connected with the control module; the communication module is used for receiving the rotation signal and sending the received rotation signal to the control module; the control module is used for controlling the driving part to drive the loudspeaker body to rotate according to the rotation signal. According to the invention, flexible rotation of the loudspeaker can be realized, so that the sounding angle of the loudspeaker can be adjusted according to user characteristics and requirements, and the sound field effect is enabled to adapt to different user requirements.

Description

Technical Field

[0001] This application relates to the field of vehicles, and in particular to centrally located loudspeakers and vehicles. Background Technology

[0002] In-car speakers are a core component for enhancing the driving and riding experience. They can be paired with various audio sources (Bluetooth, USB, online streaming, radio, etc.) to meet users' needs for voice navigation, driving prompts, program listening, and music enjoyment.

[0003] Currently, the installation of in-vehicle speakers is often done by R&D personnel before the vehicle leaves the factory, calibrating the overall sound effect and fixing the speaker placement and sound emission angle. This method cannot accommodate drivers of different heights and postures, making it difficult to adapt the sound field effect to different user needs.

[0004] There is currently no effective solution to the problem that the sound field effect in related technologies is difficult to adapt to the needs of different users. Utility Model Content

[0005] This embodiment provides a center-mounted speaker device and a vehicle to solve the problem in related technologies where the sound field effect is difficult to adapt to the needs of different users.

[0006] In the first aspect, this embodiment provides a center speaker device for a vehicle, the center speaker device comprising: a speaker body and a mounting structure; wherein, the mounting structure is used to mount the speaker body on the vehicle; the speaker body is movably connected to the mounting structure;

[0007] The mounting structure includes a built-in drive component, a control module, and a communication module; the drive component and the communication module are respectively connected to the control module.

[0008] The communication module is used to receive rotation signals and send the received rotation signals to the control module;

[0009] The control module is used to control the drive component to drive the speaker body to rotate according to the rotation signal.

[0010] In some embodiments, the drive components include a horizontal drive motor and a vertical drive motor.

[0011] In some embodiments, the speaker body is spherical; the side of the mounting structure opposite to the speaker body is a hemispherical curved surface that matches the shape of the speaker body.

[0012] In some embodiments, the mounting structure includes a base and a bracket; the bracket is mounted on the base; the speaker body is mounted on the bracket and is rotatable relative to the bracket; the inner contour of the bracket matches the surface contour of the speaker body.

[0013] In some embodiments, the center speaker device further includes an illumination component disposed on the surface of the speaker body.

[0014] Secondly, this embodiment provides a vehicle including the center speaker device described in the first aspect above; wherein the center speaker device is disposed in the center of the vehicle's dashboard.

[0015] In some embodiments, the vehicle further includes a face recognition camera; the face recognition camera is communicatively connected to the center speaker via the communication module of the center speaker.

[0016] In some embodiments, the detection range of the face recognition camera covers the driver's seat of the vehicle.

[0017] In some embodiments, the vehicle further includes tweeters; the tweeters are located at both ends of the vehicle's dashboard and are laterally distributed relative to the driving direction.

[0018] In some embodiments, the output angle of the tweeter is adjustable.

[0019] Compared with related technologies, this embodiment provides a center speaker device and a vehicle. The center speaker device enables flexible rotation of the speaker, thereby adjusting the speaker's output angle according to user characteristics and needs, and thus adapting the sound field effect to different user requirements.

[0020] Details of one or more embodiments of this application are set forth in the following drawings and description to make other features, objects and advantages of this application more readily apparent. Attached Figure Description

[0021] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments of this application and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings:

[0022] Figure 1 This is a schematic diagram of the structure of the center-mounted speaker device provided in the embodiments of this application;

[0023] Figure 2 This is a schematic diagram of the component arrangement on the interior dashboard of a vehicle provided in an embodiment of this application;

[0024] Figure 3 This is a schematic diagram of an application scenario according to an embodiment of this application. Detailed Implementation

[0025] To better understand the purpose, technical solution, and advantages of this application, the application is described and illustrated below in conjunction with the accompanying drawings and embodiments.

[0026] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of them. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0027] It should be noted that when a component is said to be "set on" another component, it can be directly set on the other component or there may be an intervening component. When a component is considered to be "set on" another component, it can be directly set on the other component or there may be an intervening component. When a component is considered to be "fixed to" another component, it can be directly fixed to the other component or there may be an intervening component.

[0028] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to limit the invention. The term “and / or” as used herein includes any and all combinations of one or more of the associated listed items. Words such as “a,” “an,” “an,” “the,” “the,” and “these” used in this application do not indicate quantity limitation and may be singular or plural. The terms “comprising,” “including,” “having,” and any variations thereof used in this application are intended to cover non-exclusive inclusion; for example, a process, method, system, product, or device comprising a series of steps or modules (units) is not limited to the listed steps or modules (units) but may include steps or modules (units) not listed, or may include other steps or modules (units) inherent to such processes, methods, products, or devices. The terms “connected,” “linked,” “coupled,” and similar terms used in this application are not limited to physical or mechanical connections but may include electrical connections, whether direct or indirect. “A plurality” as used in this application means two or more. The "and / or" operator describes the relationship between related objects, indicating that three relationships can exist. For example, "A and / or B" can represent three cases: A alone, A and B simultaneously, and B alone. Typically, the character " / " indicates that the objects before and after it are in an "or" relationship. The terms "first," "second," and "third," etc., used in this application are merely for distinguishing similar objects and do not represent a specific ordering of the objects.

[0029] In this embodiment, a center speaker device for a vehicle is provided. Figure 1 This is a schematic diagram of the structure of the center speaker device 10 provided in this embodiment, as shown below. Figure 1 As shown, the center speaker device 10 may include a speaker body 101 and a mounting structure 102. The mounting structure 102 is used to mount the speaker body 101 onto a vehicle; the speaker body 101 is movably connected to the mounting structure 102; the mounting structure 102 houses a drive component, a control module, and a communication module; the drive component and the communication module are respectively connected to the control module; the communication module receives rotation signals and sends the received rotation signals to the control module; the control module controls the drive component to drive the speaker body to rotate according to the rotation signals.

[0030] In this embodiment, the center speaker device 10 can be fixedly installed on the instrument panel inside the vehicle to cancel the reflected sound waves from the front and rear of the vehicle, provide a more balanced sound distribution, so that the driver and passengers can obtain a more consistent and higher-quality audio experience. The center speaker device 10 also helps to better focus the sound in the driving area to improve the dialogue clarity and ensure that the driver can clearly hear navigation instructions and other important driving information. In order to enhance the audio experience of users while driving and improve the sound field effect of the center speaker device 10, in this embodiment, the speaker body 101 is combined with the mounting structure 102. Among them, the mounting structure 102 is used to mount the speaker body 101 on the vehicle, and a driving component, a control module, and a communication module can be arranged inside the mounting structure 102.

[0031] Among them, the communication module can communicate with other components in the vehicle, such as communicating with a driver monitoring camera (Driver Monitoring Camera, abbreviated as DMC), an in-vehicle audio host, a voice recognition module, etc. in the vehicle to achieve linkage with other components in the vehicle. Specifically, the communication module can be implemented based on communication technologies such as serial communication, CAN bus, Ethernet, Wi-Fi, Bluetooth, etc.

[0032] The above control module can be specifically implemented based on an electronic component with signal processing capabilities. For example, it can be implemented based on a microcontroller (Microcontroller Unit, abbreviated as MCU), a field-programmable gate array (Field-Programmable Gate Array, abbreviated as FPGA), or a system on chip (System on Chip, abbreviated as SoC), etc.

[0033] The above driving component can be specifically a driving motor. The driving component can contact the speaker body 101 through a transmission component to drive the speaker body 101 in a transmission manner, or drive the speaker body 101 to rotate in a direct drive manner. Exemplarily, the driving component can be specifically implemented based on a stepper motor or a servo motor.

[0034] Taking the stepper motor as an example, the driving component can include a stepper motor fixed in the mounting structure, a worm gear connected to the output end of the stepper motor. The worm gear is meshed with a worm wheel located in the mounting structure. The worm wheel is fixedly connected with a rotating shaft. One end of the rotating shaft is fixedly connected with a rotating ring, and the rotating ring is connected to the above speaker body, so as to realize the rotational drive of the speaker body 101 based on the stepper motor.

[0035] Taking a servo motor as an example, the drive unit can use a brushless DC motor (BLDC) or a brushed motor as the motor body to provide rotational power. The drive unit may also include an encoder or potentiometer to detect the rotor position in real time. The control module receives commands and adjusts the motor current (a PID control algorithm can be integrated to adjust the motor current). In this way, accurate rotational control of the speaker body can be achieved. The motor shaft can be connected to the speaker body 101 via a rigid coupling or a flexible coupling.

[0036] The following example illustrates the interaction between the center speaker 10 and the vehicle's DMC (Distributed Control Center). The DMC monitors the driver in real time and collects the driver's brow coordinates. Changes in the driver's posture, seat position, or driver replacement can all cause changes in the driver's brow coordinates. Upon detecting a change in the driver's brow coordinates, the center speaker can actively adjust its position (up, down, left, right) to automatically focus the speaker's individual sound field or the entire vehicle's sound field on the driver, providing a better audio experience. Specifically, the DMC detects the driver in real time, identifies the driver's face area, calculates the driver's current actual brow coordinates, and compares these coordinates with a reference coordinate. This reference coordinate can be the brow coordinate matched to the current sound output angle of the center speaker. After detecting a change in the driver's actual brow coordinates relative to the reference coordinates, the calculated actual brow coordinates are input into the trained sound effect model. The sound effect model then outputs the target sound output angle corresponding to the center speaker device based on these actual brow coordinates. This output angle is then sent to the control module via the communication module, causing the control module to control the drive component to drive the speaker body 101, thereby adjusting the sound output angle of the center speaker device 10 to the target sound output angle. This sound effect model can be implemented based on neural network training, capable of analyzing the correspondence between the sound output angle of the center speaker device 10 in the vehicle and different brow coordinates of the driver. This embodiment does not specifically limit this. Therefore, the sound output angle of the center speaker device 10 can be actively adjusted according to drivers of different heights, seat positions, and sitting postures, allowing the center speaker device 10 to rotate and adjust with changes in the driver's sitting posture and seat position. Furthermore, after a driver change, the sound output angle of the center speaker device 10 can be adapted to the new driver, thereby improving the listening experience.

[0037] Furthermore, the center speaker 10 in this embodiment can also be linked with other components in the vehicle to achieve flexible adjustment of the sound output angle. For example, it can be linked with a voice recognition module to control the speaker body inside the center speaker 10 to rotate according to the user's voice command, so that the sound output effect of the center speaker 10 matches the user's current listening needs in real time.

[0038] Therefore, the center speaker device 10 provided in this embodiment can realize the flexible rotation of the speaker, thereby adjusting the speaker's output angle according to user characteristics and needs, and thus adapting the sound field effect to different user needs.

[0039] In one embodiment, the driving components include a horizontal drive motor and a vertical drive motor. The horizontal and vertical drive motors can be housed within the mounting structure 102 to drive the speaker body 101 to rotate horizontally and / or vertically based on received rotation signals, thereby enabling more flexible adjustment of the sound output angle.

[0040] The following explanation uses the example of the speaker body 101 needing to rotate horizontally and vertically. When the DMC detects a change in the driver's brow coordinates, it uses a trained sound effect model to calculate the target sound output angle corresponding to the center speaker 10 based on the driver's current actual brow coordinates. The rotation signal, containing the target sound output angle, is then sent to the control module via the communication module inside the center speaker 10. This can be done via serial communication, CAN bus, or Ethernet. The control module can be an MCU, FPGA, or SoC. The control module analyzes the rotation signal and determines the required horizontal and vertical rotation angles of the speaker body 101 based on the analyzed target sound output angle.

[0041] Next, the control module determines the operating parameters for the horizontal and vertical drive motors. For example, if the horizontal and vertical drive motors are stepper motors, the number of pulses for the horizontal drive motor and the number of pulses for the vertical drive motor can be determined. If the horizontal and vertical drive motors are servo motors, the duty cycle (PWM) for the horizontal drive motor and the duty cycle for the vertical drive motor can be determined.

[0042] The horizontal drive motor can operate according to the received working parameters and drive the speaker body 101 to rotate horizontally. For example, when the driving component is a stepper motor, the driver of the horizontal drive motor receives a pulse signal, drives the horizontal drive motor to rotate, drives the worm gear to rotate, and thus drives the speaker body 101 to rotate horizontally. If it is a servo motor, the horizontal drive motor directly responds to the corresponding PWM, and the output shaft rotates to a specified angle, driving the speaker body 101 to rotate horizontally.

[0043] Correspondingly, the vertical drive motor can also operate according to the received operating parameters and push the speaker body 102 to pitch.

[0044] The speaker body's rotation can also be fed back via an encoder. Specifically, the worm gear angle can be detected in real time using a photoelectric encoder on the horizontal axis, or the current position can be fed back via a potentiometer built into the vertical axis servo motor. The control module compares the desired rotation angle with the current actual angle, triggering PID control to adjust the drive motor's operating parameters, ensuring the speaker body stops accurately at the designated position to match the target sound output angle.

[0045] Specifically, the pitch angle of the speaker body 101 can be adjusted according to the vertical drive motor, so that the change in pitch angle can be adapted to the height of the driver or passenger. In this way, the pitch angle of the speaker body can be adjusted according to the height of the driver or passenger to match the optimal sound field listening position for people of different body types and heights.

[0046] In another embodiment, the speaker body 101 is spherical; the side of the mounting structure 102 opposite to the speaker body 101 is a hemispherical curved surface that matches the shape of the speaker body 101.

[0047] In this embodiment, as Figure 1 As shown, the speaker body 101 is spherical, and the side of the mounting structure 102 opposite to the speaker body 101 is a hemispherical curved surface that matches the shape of the speaker body 101. This allows the speaker body 101 to be embedded in the mounting structure, thus making the rotation and installation of the speaker body more stable, unaffected by bumps during vehicle operation, and enabling flexible rotation of the speaker body 101 without collisions. Additionally, adhesive components can be provided on the base to fix the base inside the vehicle, or through holes can be provided on the base for screwing it onto the vehicle's dashboard.

[0048] In another embodiment, the center speaker device 10 may also include an illumination component. The illumination component is disposed on the surface of the speaker body. Specifically, the illumination component can be disposed on the outer shell of the speaker body to form a shell ambient light, or a mesh cover can be disposed on the outside of the speaker body 101, with an illumination component disposed on the mesh cover to form a mesh ambient light. This illumination component can be based on LED beads, LED strips, or light-guiding materials; this embodiment does not specifically limit its application. Based on information interaction with other components, the rhythmic changes of the speaker body's shell ambient light or mesh ambient light can be controlled to blend with the overall vehicle theme and change with the systematic design (CMF) of the vehicle's color, materials, and surface finish, thereby enhancing the user's riding experience.

[0049] In this embodiment, a vehicle is provided. Figure 2 This is a schematic diagram showing the component arrangement on the interior dashboard of the vehicle provided in this embodiment. Figure 2As shown, the vehicle may include the center speaker 10 provided in any of the above embodiments. The center speaker 10 is located in the center of the vehicle's dashboard.

[0050] In this design, the mounting structure 102 of the center speaker 10 mounts the speaker body 101 onto the vehicle, with the speaker body 101 movably connected to the mounting structure 102. By placing the center speaker 10 in a central position on the vehicle's dashboard, reflected sound waves from the front and rear of the vehicle can be canceled out, providing a more balanced sound distribution for the driver and other passengers. This ensures a more consistent and higher-quality audio experience regardless of where any occupant is located within the vehicle. Furthermore, this arrangement allows the center speaker 10 to better focus sound on the driving area, improving the clarity of conversations between occupants and ensuring the driver can clearly hear navigation instructions or other driving-related prompts. In some embodiments, for vehicles equipped with low-frequency speakers, one or more low-frequency speakers located at the bottom of the center console can be incorporated as part of the center speaker 10 to produce a richer, deeper bass effect, enhancing overall sound quality. Additionally, the center speaker 10 can also serve as a prominent central corner element, contributing to a cleaner and more organized interior design.

[0051] The vehicle provided in this embodiment can flexibly rotate the speaker body 101 in the center speaker device 10, thereby adjusting the speaker's output angle according to user characteristics and needs, and thus adapting the sound field effect to different user needs.

[0052] It should be noted that the specific examples in this embodiment can refer to the examples described in the above embodiments and optional implementations, and will not be repeated in this embodiment.

[0053] In one embodiment, the vehicle further includes a face recognition camera; the face recognition camera is communicatively connected to the center speaker 10 via the communication module of the center speaker. This face recognition camera can be either the DMC used for driver face recognition mentioned above, or other face recognition cameras deployed inside the vehicle. For example, it can be a face recognition camera whose detection range covers front-seat occupants, rear-seat occupants, or all occupants. By recognizing faces inside the vehicle, the number of occupants and their distribution positions are confirmed, and the rotation angle of the speaker body 101 in the center speaker 10 is adjusted according to preset rules to change the sound output angle of the center speaker 10, thereby improving the listening effect for all occupants in the vehicle.

[0054] In another embodiment, the detection range of the aforementioned face recognition camera covers the driver's seat of the vehicle. That is, the face recognition camera is a DMC (Digital Control Center). Thus, the driver's face can be identified based on the DMC, and the driver's actual brow coordinates can be calculated. Then, based on the actual brow coordinates, the target sound output angle corresponding to the center speaker 10 is determined, and a rotation signal is sent to the center speaker 10. This allows the control module in the center speaker 10 to control the drive component to rotate the speaker body 101, thereby adjusting the center speaker 10 to the target sound output angle corresponding to the actual brow coordinates.

[0055] Furthermore, in one embodiment, the vehicle further includes a tweeter 20; the tweeter 20 is disposed at both ends of the vehicle's dashboard and is laterally distributed relative to the driving direction. Figure 2 As shown, the tweeter 20 can be distributed at both ends of the vehicle dashboard to provide lateral audio output for the occupants. For example, the tweeter 20 can be a tweeter unit that outputs high-frequency (2kHz~20kHz) sound.

[0056] The center speaker 10 can be positioned in the center of the vehicle dashboard, and the tweeters 20 can be distributed at both ends of the vehicle dashboard. By utilizing the strong directivity of the tweeters 20 as tweeters, a wider sound field is generated. This interacts with the sound field generated by the center speaker 10, improving the overall sound field effect of the vehicle and enhancing the user's riding experience.

[0057] In one embodiment, the output angle of the tweeter 20 is adjustable. Accordingly, the tweeter 20 may also include a mounting structure and a tweeter body, through which the tweeter body is mounted on the vehicle dashboard. The tweeter body is movably connected to the corresponding mounting structure, thus achieving adjustability of the tweeter's output angle.

[0058] Figure 3 This is a schematic diagram illustrating one application scenario of this embodiment. For example... Figure 3 As shown, the driver's forehead coordinates can be monitored in real time by the DMC. When the driver's posture changes, for example, when the driver... Figure 3 When the posture A is switched to posture B, the DMC can calculate the sound output angle that the center speaker 10 needs to be adjusted according to the center-head coordinates under posture B, and the sound output angle that the tweeter 20 needs to be adjusted according to the center-head coordinates under posture B. Then, the center speaker 10 adjusts the rotation angle of its speaker body, and the tweeter 20 adjusts the rotation angle of its tweeter body.

[0059] It should be understood that the specific embodiments described herein are merely illustrative of the application and not intended to limit it. All other embodiments derived by those skilled in the art based on the embodiments provided in this application without inventive effort are within the scope of protection of this application.

[0060] It should be noted that the user information (including but not limited to user device information, user personal information, etc.) and data (including but not limited to data used for analysis, data stored, data displayed, etc.) involved in this application are all information and data authorized by the user or fully authorized by all parties.

[0061] Obviously, the accompanying drawings are merely some examples or embodiments of this application. Those skilled in the art can apply this application to other similar situations based on these drawings without any creative effort. Furthermore, it is understood that although the work done in this development process may be complex and lengthy, for those skilled in the art, certain design, manufacturing, or production modifications made based on the technical content disclosed in this application are merely conventional technical means and should not be considered as insufficient disclosure of this application.

[0062] The term "embodiment" in this application refers to a specific feature, structure, or characteristic described in connection with an embodiment that may be included in at least one embodiment of this application. The appearance of this phrase in various places in the specification does not necessarily imply the same embodiment, nor does it imply that it is mutually exclusive with or independent of other embodiments. It will be clearly or implicitly understood by those skilled in the art that the embodiments described in this application may be combined with other embodiments without conflict.

[0063] The embodiments described above are merely illustrative of 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 patent protection. 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 scope of protection of this application. Therefore, the scope of protection of this application should be determined by the appended claims.

Claims

1. A midrange speaker device for a vehicle, characterized by, The center speaker device includes: a speaker body (101) and a mounting structure (102); wherein, the mounting structure (102) is used to mount the speaker body (101) on a vehicle; the speaker body (101) is movably connected to the mounting structure (102); The mounting structure (102) has a built-in drive component, a control module, and a communication module; the drive component and the communication module are respectively connected to the control module. The communication module is used to receive rotation signals and send the received rotation signals to the control module; The control module is used to control the drive component to drive the speaker body (101) to rotate according to the rotation signal.

2. The loudspeaker device of claim 1, wherein, The drive components include a horizontal drive motor and a vertical drive motor.

3. The loudspeaker device of claim 1, wherein, The speaker body (101) is spherical; the side of the mounting structure (102) opposite to the speaker body (101) is a hemispherical curved surface that matches the shape of the speaker body (101).

4. The loudspeaker device of claim 1, wherein, The mounting structure (102) includes a base and a bracket; the bracket is mounted on the base; the speaker body (101) is mounted on the bracket and can rotate relative to the bracket; the inner contour of the bracket matches the surface contour of the speaker body (101).

5. The loudspeaker device according to any one of claims 1 to 4, wherein The center speaker device also includes an illumination component; the illumination component is disposed on the surface of the speaker body.

6. A vehicle characterized by comprising: The device includes a center speaker (10) as described in any one of claims 1 to 5; wherein the center speaker (10) is disposed in the center of the dashboard of the vehicle.

7. The vehicle of claim 6, wherein The vehicle also includes a face recognition camera; the face recognition camera is connected to the center speaker (10) through the communication module of the center speaker (10).

8. The vehicle of claim 7, wherein, The detection range of the facial recognition camera covers the driver's seat of the vehicle.

9. The vehicle of claim 6, wherein, The vehicle also includes a high-frequency speaker (20); the high-frequency speaker (20) is located at both ends of the vehicle's dashboard and is distributed laterally relative to the driving direction.

10. The vehicle of claim 9, wherein, The sound output angle of the high-frequency speaker device (20) is adjustable.

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