A method, system and device for automatically controlling the main driving sound field

Abstract

The present invention relates to the field of sound field calibration, and specifically provides a method, system, and device for automatically controlling the main driver's sound field, aiming to solve the problem that a single sound field calibration method cannot adjust the center position of the sound field, resulting in a poor user experience. To this end, the main driver's sound field automatic control method of the present invention includes: obtaining seat position information and relative position information of the driver's head relative to the seat; determining the relative coordinates of the first driver's head based on the seat position information and the relative position information of the driver's head relative to the seat; and obtaining the current sound field center position based on the first driver's head relative coordinates.

Description

Technical Field

[0001] The present invention relates to the field of sound field adjustment, and specifically provides a method, system and device for automatically controlling a driver's sound field. Background Art

[0002] With the improvement of technology and living standards, cars have become the means of transportation of choice for more and more people. Whether commuting to get off work or traveling, people spend more and more time in their cars. Therefore, there is a need for an automatic control system for the in-cabin sound field environment that can be adapted to different users.

[0003] Currently, there are no vehicle models that can achieve automatic control and calibration of the sound field position. For example, when users with different heights, weights and driving habits drive the vehicle, the music played is almost always played according to the main driver's surround sound field position set by the tuner. This single sound field calibration method cannot adjust the center position of the sound field, resulting in a poor user experience and can no longer meet user needs.

[0004] Accordingly, this field requires a new automatic control solution for the main driving sound field to solve the above problems. Summary of the Invention

[0005] To overcome the above-mentioned drawbacks, the present invention is proposed to provide a solution, or at least a partial solution, to the technical problem that a single sound field calibration method cannot adjust the center position of the sound field, resulting in a poor user experience. The present invention provides a method, system, and device for automatically controlling the main driver's sound field.

[0006] In a first aspect, the present invention provides a method for automatic control of a main driver's sound field, comprising the following steps: obtaining seat position information and relative position information of the driver's head relative to the seat; determining the first driver's head relative coordinates based on the seat position information and the relative position information of the driver's head relative to the seat; and obtaining the current sound field center position based on the first driver's head relative coordinates.

[0007] In one embodiment, the seat position information includes at least one of seat horizontal position information, seat height position information, and seat back angle information.

[0008] In one embodiment, determining the first relative coordinates of the driver's head based on the seat position information and the relative position information of the driver's head relative to the seat further includes: obtaining the absolute coordinates of the current seat headrest based on the seat position information; determining the first relative coordinates of the driver's head based on the absolute coordinates of the current seat headrest and the relative position information of the driver's head relative to the seat.

[0009] In one embodiment, obtaining the current sound field center position based on the relative coordinates of the first driver's head further includes: determining whether the relative coordinates of the first driver's head are consistent with the relative coordinates of the second driver's head, the relative coordinates of the second driver's head being the relative coordinates of the driver's head stored last time; if so, determining the current sound field center position based on the sound field data corresponding to the relative coordinates of the second driver's head; if not, performing sound field self-calibration based on the relative coordinates of the first driver's head to determine the current sound field center position.

[0010] In one embodiment, a third driver head relative coordinate in the driver head relative coordinate historical data set is obtained, the difference between which the third driver head relative coordinate and the first driver head relative coordinate is less than a difference threshold; when the driver head relative coordinate historical data set contains a third driver head relative coordinate whose difference with the first driver head relative coordinate is less than the difference threshold, the current sound field center position is determined based on the third driver head relative coordinate; when the driver head relative coordinate historical data set contains multiple third driver head relative coordinates whose difference with the first driver head relative coordinate is less than the difference threshold, the current sound field center position is determined based on the multiple third driver head relative coordinates.

[0011] In one embodiment, when the driver head relative coordinate historical data set includes multiple third driver head relative coordinates whose differences with the first driver head relative coordinates are less than a difference threshold, determining the current sound field center position based on the multiple third driver head relative coordinates includes: determining the current sound field center position based on the average value of the multiple third driver head relative coordinates; or determining the current sound field center position based on the third driver head relative coordinates whose difference with the first driver head relative coordinates is the smallest.

[0012] In a second aspect, the present invention provides an automatic sound field control system for a primary driver, comprising an information acquisition device, an image acquisition device, a first controller, and a second controller. The information acquisition device is configured to acquire seat position information; the image acquisition device is configured to acquire relative position information of the driver's head relative to the seat; the first controller is configured to determine the relative coordinates of the driver's head based on the seat position information and the relative position information of the driver's head relative to the seat; and the second controller is configured to obtain the current sound field center position based on the first relative coordinates of the driver's head.

[0013] In one embodiment, the first controller further includes a seat controller and a vehicle controller, the seat controller is configured to obtain the absolute coordinates of the current seat headrest based on the seat position information; the vehicle controller is configured to determine the relative coordinates of the first driver's head based on the absolute coordinates of the current seat headrest and the relative position information of the driver's head relative to the seat.

[0014] In one embodiment, the second controller further includes a judgment module, which is configured to determine whether the relative coordinates of the first driver's head are consistent with the relative coordinates of the second driver's head, where the relative coordinates of the second driver's head are the relative coordinates of the driver's head stored last time; if so, the current sound field center position is determined based on the sound field data corresponding to the relative coordinates of the second driver's head; if not, the sound field self-calibration is performed based on the relative coordinates of the first driver's head to determine the current sound field center position.

[0015] In one embodiment, the judgment module further includes a coordinate acquisition unit and a sound field center position unit, the coordinate acquisition unit is configured to obtain a third driver head relative coordinate in the driver head relative coordinate history data set, the difference between which and the first driver head relative coordinate is less than a difference threshold; the sound field center position unit is configured to determine the current sound field center position based on the third driver head relative coordinate when the driver head relative coordinate history data set contains a third driver head relative coordinate whose difference with the first driver head relative coordinate is less than the difference threshold; when the driver head relative coordinate history data set contains multiple third driver head relative coordinates whose difference with the first driver head relative coordinate is less than the difference threshold, determine the current sound field center position based on the multiple third driver head relative coordinates.

[0016] In a third aspect, a control device is provided, which includes a processor and a storage device, wherein the storage device is suitable for storing multiple program codes, and the program codes are suitable for being loaded and run by the processor to execute any of the aforementioned main driver sound field automatic control methods.

[0017] In a fourth aspect, a computer-readable storage medium is provided, wherein a plurality of program codes are stored in the computer-readable storage medium, and the program codes are suitable for being loaded and run by a processor to execute any of the aforementioned main driver sound field automatic control methods.

[0018] Solution 1. A method for automatically controlling the sound field of a main driver's seat, characterized by comprising the following steps:

[0019] Acquiring seat position information and relative position information of the driver's head relative to the seat;

[0020] determining a first driver's head relative coordinate based on the seat position information and the relative position information of the driver's head relative to the seat;

[0021] The current sound field center position is obtained based on the first driver's head relative coordinates.

[0022] Solution 2. The method for automatic control of the main driving sound field according to Solution 1 is characterized in that the seat position information includes at least one of seat horizontal position information, seat height position information and seat back angle information.

[0023] Solution 3. The method for automatically controlling the main driver's sound field according to Solution 2 is characterized in that, based on the seat position information and the relative position information of the driver's head relative to the seat, determining the relative coordinates of the first driver's head further includes:

[0024] obtaining the absolute coordinates of the current seat headrest based on the seat position information;

[0025] Based on the absolute coordinates of the current seat headrest and the relative position information of the driver's head with respect to the seat, a first driver's head relative coordinate is determined.

[0026] Solution 4. The method for automatically controlling the sound field of the main driver according to Solution 1 is characterized in that obtaining the current sound field center position based on the relative coordinates of the first driver's head further includes:

[0027] determining whether the first driver head relative coordinates are consistent with the second driver head relative coordinates, where the second driver head relative coordinates are the last stored driver head relative coordinates;

[0028] If so, the current sound field center position is determined based on the sound field data corresponding to the relative coordinates of the second driver's head; if not, the sound field self-calibration is performed based on the relative coordinates of the first driver's head to determine the current sound field center position.

[0029] Solution 5. The method for automatically controlling the sound field for the driver according to Solution 4 is characterized in that performing sound field self-calibration based on the relative coordinates of the first driver's head to determine the current sound field center position further includes:

[0030] Acquire a third driver's head relative coordinate in the driver's head relative coordinate history data set, the difference between which and the first driver's head relative coordinate is less than a difference threshold;

[0031] When the driver head relative coordinate historical data set includes a third driver head relative coordinate whose difference with the first driver head relative coordinate is less than a difference threshold, determining the current sound field center position based on the third driver head relative coordinate;

[0032] When the driver head relative coordinate historical data set contains multiple third driver head relative coordinates whose differences with the first driver head relative coordinates are less than a difference threshold, the current sound field center position is determined based on the multiple third driver head relative coordinates.

[0033] Solution 6. The method for automatically controlling the main driver's sound field according to Solution 5 is characterized in that, when the driver's head relative coordinate historical data set includes multiple third driver's head relative coordinates whose differences from the first driver's head relative coordinates are less than a difference threshold, determining the current sound field center position based on the multiple third driver's head relative coordinates includes:

[0034] determining the current sound field center position based on an average value of the plurality of third driver head relative coordinates; or

[0035] The current sound field center position is determined by the third driver head relative coordinate having the smallest difference with the first driver head relative coordinate.

[0036] Solution 7. A driver's audio field automatic control system, characterized by comprising:

[0037] an information acquisition device configured to acquire seat position information;

[0038] an image acquisition device configured to obtain relative position information of the driver's head relative to the seat;

[0039] a first controller configured to determine a first driver head relative coordinate based on the seat position information and relative position information of the driver's head relative to the seat;

[0040] The second controller is configured to obtain the current sound field center position based on the relative coordinates of the first driver's head.

[0041] Solution 8. According to the automatic control system for the main driving sound field of Solution 7, the first controller further includes:

[0042] a seat controller configured to obtain the absolute coordinates of a current seat headrest based on the seat position information;

[0043] The vehicle controller is configured to determine the first relative coordinates of the driver's head based on the absolute coordinates of the current seat headrest and the relative position information of the driver's head relative to the seat.

[0044] Solution 9. The automatic control system for the main driving sound field according to Solution 7 is characterized in that the second controller further includes a judgment module, and the judgment module is configured to:

[0045] determining whether the first driver head relative coordinates are consistent with the second driver head relative coordinates, where the second driver head relative coordinates are the last stored driver head relative coordinates;

[0046] If so, the current sound field center position is determined based on the sound field data corresponding to the relative coordinates of the second driver's head; if not, the sound field self-calibration is performed based on the relative coordinates of the first driver's head to determine the current sound field center position.

[0047] Solution 10. The automatic control system for the main driving sound field according to Solution 9, wherein the judgment module further comprises:

[0048] A coordinate acquisition unit configured to acquire a third driver head relative coordinate in the driver head relative coordinate history data set, the difference between which and the first driver head relative coordinate is less than a difference threshold;

[0049] The sound field center position unit is configured to determine the current sound field center position based on the third driver head relative coordinates when the driver head relative coordinate historical data set contains a third driver head relative coordinate whose difference with the first driver head relative coordinate is less than the difference threshold; and to determine the current sound field center position based on the multiple third driver head relative coordinates when the driver head relative coordinate historical data set contains multiple third driver head relative coordinates whose difference with the first driver head relative coordinate is less than the difference threshold.

[0050] Solution 11. A control device comprising a processor and a storage device, wherein the storage device is suitable for storing multiple program codes, and is characterized in that the program codes are suitable for being loaded and run by the processor to execute the main driving sound field automatic control method described in any one of Solutions 1 to 6.

[0051] Solution 12. A computer-readable storage medium storing a plurality of program codes, characterized in that the program codes are suitable for being loaded and run by a processor to execute the main driving sound field automatic control method described in any one of Solutions 1 to 6.

[0052] The above one or more technical solutions of the present invention have at least one or more of the following beneficial effects:

[0053] Based on obtaining the seat position information and the relative position information of the driver's head relative to the seat, the present invention further determines the relative coordinates of the first driver's head, and then determines the current center position of the sound field, thereby achieving the purpose of providing the center position of the sound field for users of different heights, weights and driving habits, thereby providing different users with the best music experience.

[0054] The relative coordinates of the driver's head are determined by the absolute coordinates of the current seat headrest and the relative position of the driver's head relative to the seat headrest. This method is novel and provides a basis for later determining the current sound field center position.

[0055] By adding identification bits to the relative coordinates of the driver's head and then using self-calibration to obtain the center position of the sound field, we can provide different sound field center positions for users of different heights, weights, and driving habits, realize automatic control of the sound field center position, and improve the user experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0056] The disclosure of the present invention will be more easily understood with reference to the accompanying drawings. Those skilled in the art will readily appreciate that these drawings are for illustrative purposes only and are not intended to limit the scope of protection of the present invention. Furthermore, similar numbers in the drawings represent similar components, wherein:

[0057] Figure 1 This is a flow chart of the main steps of a method for automatically controlling a driver's audio field according to an embodiment of the present invention;

[0058] Figure 2 is a schematic diagram of a sound field self-calibration process according to an embodiment of the present invention;

[0059] Figure 3 This is a schematic diagram of the main structural block diagram of the main driving sound field automatic control system according to one embodiment of the present invention;

[0060] Figure 4 2 is a schematic structural diagram of an automatic control system for a main driving sound field according to an embodiment of the present invention;

[0061] Figure 5 4 is a flow chart of determining the relative coordinates of a driver's head according to an embodiment of the present invention.

[0062] Reference Signs List :

[0063] 11: Information acquisition device; 12: Image acquisition device; 13: First controller; 14: Second controller. DETAILED DESCRIPTION

[0064] Some embodiments of the present invention are described below with reference to the accompanying drawings. Those skilled in the art should understand that these embodiments are only used to explain the technical principles of the present invention and are not intended to limit the scope of protection of the present invention.

[0065] In the description of the present invention, "module" and "processor" may include hardware, software, or a combination of both. A module may include hardware circuitry, various suitable sensors, communication ports, and memory. It may also include software components, such as program code, or a combination of software and hardware. A processor may be a central processing unit, a microprocessor, an image processor, a digital signal processor, or any other suitable processor. A processor has data and / or signal processing capabilities. A processor may be implemented in software, hardware, or a combination of both. Non-transitory computer-readable storage media include any suitable medium capable of storing program code, such as magnetic disks, hard disks, optical disks, flash memory, read-only memory, random access memory, and the like. The term "A and / or B" refers to all possible combinations of A and B, such as only A, only B, or both A and B. The terms "at least one of A or B" or "at least one of A and B" have similar meanings to "A and / or B" and may include only A, only B, or both A and B. The singular forms "one" and "the" may also include the plural forms.

[0066] Currently, the traditional single sound field calibration method cannot adjust the center position of the sound field, resulting in a poor user experience and no longer meeting user needs. To this end, this application provides a method, system and device for automatically controlling the main driving sound field, which achieves the purpose of providing the sound field center position for users of different heights, weights and driving habits, thereby providing different users with the best music experience.

[0067] See attached Figure 1 , Figure 1 FIG. 1 is a flow chart showing the main steps of a method for automatically controlling the main driver's sound field according to an embodiment of the present invention. Figure 1 As shown, the main driving sound field automatic control method in the embodiment of the present invention mainly includes the following steps S101 to S103.

[0068] Step S101: Acquire seat position information and information about the relative position of the driver's head relative to the seat. Specifically, after entering a vehicle, the driver habitually adjusts the driver's seat to suit their driving habits, primarily by adjusting the fore / aft position, height, and backrest angle. Therefore, the seat position information may include at least one of seat horizontal position information, seat height information, and seat backrest angle information. The relative position information of the driver's head relative to the seat may be the relative position of the driver's head relative to the seat headrest.

[0069] Step S102: Determine the first relative coordinates of the driver's head based on the seat position information and the relative position of the driver's head relative to the seat. In this step, the absolute coordinates of the current seat headrest are first calculated based on the seat position information and seat dimensions. Next, a fuzzy algorithm is used to determine the first relative coordinates of the driver's head based on the absolute coordinates of the current seat headrest and the relative position of the driver's head relative to the seat headrest. This novel method of determining the relative coordinates of the driver's head using the absolute coordinates of the current seat headrest and the relative position of the driver's head relative to the seat headrest provides a foundation for later determining the current center of the sound field.

[0070] Step S103: Obtain the current sound field center position based on the relative coordinates of the first driver's head. After obtaining the current sound field center position, the present application can control the main driving sound field based on the current sound field center position. For example, the vehicle navigation multimedia terminal can adjust the delay ratio information of each audio channel according to the current sound field center position, and send the delay ratio information to the audio DSP unit through the USART or I2C protocol. The audio DSP unit adjusts the delay ratio of each audio channel according to the delay ratio information, and sends the corresponding delayed analog audio signal to each audio channel after DAC conversion. The power amplifier receives the corresponding delayed analog audio signal sent by the audio DSP unit to each audio channel, and amplifies the delayed analog audio signal through the power amplifier and outputs it to the speaker for sound. In actual applications, the technical means commonly used in the prior art can also be used to control the main driving sound field based on the sound field center position, which will not be repeated here.

[0071] The specific process of obtaining the current sound field center position in this step can be implemented through the following steps S1031-S1031, which will not be repeated here.

[0072] Based on the above steps S101 to S103, after obtaining the seat position information and the relative position information of the driver's head relative to the seat, the relative coordinates of the first driver's head are further determined, and then the current center position of the sound field is determined, thereby achieving the purpose of providing the center position of the sound field for users of different heights, weights and driving habits, thereby providing different users with the best music experience.

[0073] Step S1031: Determine whether the relative coordinates of the first driver's head determined in step S102 are consistent with the relative coordinates of the second driver's head, where the relative coordinates of the second driver's head are the relative coordinates of the driver's head stored last time; if the two are consistent, add an identification bit 0 to the relative coordinates of the first driver's head; if the two are inconsistent, add an identification bit 1 to the relative coordinates of the first driver's head.

[0074] Step S1032: Determine whether the relative coordinate flag of the first driver's head is 1. Figure 2 As shown. When the first driver head relative coordinate identification bit is 0, the sound field position corresponding to the last stored relative coordinate of the driver's head is used as the current sound field center position, that is, the last stored sound field position can be directly used to play music. Specifically, the sound field position corresponding to the last stored relative coordinate of the driver's head can be the main driver surround sound field position set by the tuner when the vehicle leaves the factory, or it can be the sound field position corresponding to the driver who drove the vehicle last time. When the first driver head relative coordinate identification bit is 1, the sound field self-calibration method is used to determine the current sound field center position.

[0075] Specifically, during sound field self-calibration, a third driver's head relative coordinate from the historical driver's head relative coordinate data set is first obtained, whose difference with the first driver's head relative coordinate is less than a difference threshold. If the historical driver's head relative coordinate data set contains a third driver's head relative coordinate whose difference with the first driver's head relative coordinate is less than the difference threshold, the current sound field center position is determined based on the third driver's head relative coordinate. Specifically, the sound field position corresponding to the third driver's head relative coordinate is used as the current sound field center position. If the historical driver's head relative coordinate data set contains multiple third driver's head relative coordinates whose difference with the first driver's head relative coordinate is less than the difference threshold, the sound field position corresponding to the average of the multiple third driver's head relative coordinates is used as the current sound field center position. Alternatively, the sound field position corresponding to the third driver's head relative coordinate with the smallest difference with the first driver's head relative coordinate can be used as the current sound field center position. After determining the current sound field center position, the current sound field center position is used to replace the previously stored sound field data, thereby enabling music playback. Generally speaking, the driver's weight may affect the fore-aft position, height, and backrest angle of the seat. Therefore, the driver's weight also affects the sound field center position. The above-mentioned driver head relative coordinate historical data set is a database, which stores the relative coordinates of the heads of drivers with different heights, weights and driving habits, and the sound field center positions corresponding to the relative coordinates of the drivers' heads.

[0076] By adding identification bits to the relative coordinates of the driver's head and then using self-calibration to obtain the center position of the sound field, we can provide different sound field center positions for users of different heights, weights, and driving habits, realize automatic control of the sound field center position, and improve the user experience.

[0077] It should be pointed out that although the various steps in the above embodiments are described in a specific order, those skilled in the art will understand that in order to achieve the effects of the present invention, different steps do not have to be performed in such an order. They can be performed simultaneously (in parallel) or in other orders. These changes are within the scope of protection of the present invention.

[0078] Furthermore, the present invention also provides a main driving sound field automatic control system.

[0079] See attached Figure 3 , Figure 3 FIG. 1 is a main structural block diagram of the automatic control of the main driving sound field according to an embodiment of the present invention. Figure 3 As shown, the main driver sound field automatic control system in an embodiment of the present invention mainly includes an information acquisition device 11, an image acquisition device 12, a first controller 13, and a second controller 14. In some embodiments, one or more of the information acquisition device 11, the image acquisition device 12, the first controller 13, and the second controller 14 can be combined into a module. In some embodiments, the information acquisition device 11 can be configured to obtain seat position information, such as seat horizontal position information, seat height position information, and seat back angle information. The image acquisition device 12 can be configured to obtain relative position information of the driver's head relative to the seat. The image acquisition device 12 here can be implemented by an in-cabin camera 121, but is not limited to this. The first controller 13 can be configured to determine the relative coordinates of the first driver's head based on the seat position information and the relative position information of the driver's head relative to the seat. The second controller 14 is configured to obtain the current sound field center position based on the relative coordinates of the first driver's head. In one embodiment, the description of the specific implementation functions can be found in steps S101 to S103.

[0080] In one embodiment, Figure 4 As shown, the first controller 13 further includes a seat controller 131 and a vehicle controller 132. The seat controller 131 is configured to obtain the absolute coordinates of the current seat headrest based on the seat position information; the vehicle controller 132 is configured to determine the relative coordinates of the first driver's head based on the absolute coordinates of the current seat headrest and the relative position of the driver's head relative to the seat headrest. In addition, the main driver's sound field automatic control system may also include the following Figure 4 The gateway 15 shown in FIG. 1 is configured to output the absolute coordinates of the current seat headrest obtained by the seat controller 131 to the vehicle controller 132. Specifically, the relative coordinates of the first driver's head can be obtained by Figure 5The process shown determines that first, the seat controller 131 obtains the seat horizontal position information, seat height position information and seat back angle information, and the in-cabin camera 121 obtains the position image of the driver and the seat headrest, and then obtains the relative position information of the driver's head relative to the seat and outputs it to the vehicle controller 132. The vehicle controller 132 calculates the relative coordinates of the driver's head based on the received information.

[0081] In one embodiment, the second controller 14 further includes a judgment module, which can be further controlled by the power amplifier controller 141 (see Figure 4 ) is implemented, the power amplifier controller 141 is configured to determine whether the relative coordinates of the first driver's head are consistent with the relative coordinates of the driver's head stored last time; if the two are consistent, an identification bit 0 is added to the relative coordinates of the first driver's head, and the sound field position corresponding to the relative coordinates of the driver's head stored last time is used as the current sound field center position, that is, the sound field position stored last time can be directly used for music playback; if the two are inconsistent, an identification bit 1 is added to the relative coordinates of the first driver's head, and the sound field self-calibration method is used to determine the current sound field center position.

[0082] The judgment module further includes a coordinate acquisition unit and a sound field center position unit. The coordinate acquisition unit is configured to obtain a third driver head relative coordinate in the driver head relative coordinate history data set, whose difference with the first driver head relative coordinate is less than a difference threshold; the sound field center position unit is configured to determine the current sound field center position based on the third driver head relative coordinate when the driver head relative coordinate history data set contains a third driver head relative coordinate whose difference with the first driver head relative coordinate is less than the difference threshold; when the driver head relative coordinate history data set contains multiple third driver head relative coordinates whose difference with the first driver head relative coordinate is less than the difference threshold, the current sound field center position can be determined based on the average value of the multiple third driver head relative coordinates; or the current sound field center position can be determined based on the third driver head relative coordinate whose difference with the first driver head relative coordinate is the smallest.

[0083] The above main driving sound field automatic control system is used to execute Figure 1 The embodiment of the main driver sound field automatic control method shown in the figure has similar technical principles, technical problems solved and technical effects produced. Those skilled in the art can clearly understand that for the convenience and conciseness of description, the specific working process and related instructions of the main driver sound field automatic control system can refer to the contents described in the embodiment of the main driver sound field automatic control method, and will not be repeated here.

[0084] Those skilled in the art will appreciate that all or part of the processes in the method for implementing the above-mentioned embodiment of the present invention may also be accomplished by instructing the relevant hardware through a computer program. The computer program may be stored in a computer-readable storage medium. When the computer program is executed by a processor, it may implement the steps of each of the above-mentioned method embodiments. The computer program includes computer program code, which may be in source code form, object code form, executable file, or some intermediate form. The computer-readable storage medium may include: any entity or device, medium, USB flash drive, mobile hard disk, magnetic disk, optical disk, computer memory, read-only memory, random access memory, electric carrier signal, telecommunication signal, and software distribution medium capable of carrying the computer program code. It should be noted that the content contained in the computer-readable storage medium may be appropriately increased or decreased according to the requirements of legislation and patent practice in the jurisdiction. For example, in some jurisdictions, according to legislation and patent practice, computer-readable storage media do not include electric carrier signals and telecommunication signals.

[0085] Furthermore, the present invention also provides a control device. In one embodiment of the control device according to the present invention, the control device includes a processor and a storage device. The storage device can be configured to store a program for executing the automatic control method for the main driver's sound field of the above-mentioned method embodiment, and the processor can be configured to execute the program in the storage device, which includes but is not limited to the program for executing the automatic control method for the main driver's sound field of the above-mentioned method embodiment. For ease of explanation, only the parts related to the embodiment of the present invention are shown. For specific technical details not disclosed, please refer to the method section of the embodiment of the present invention.

[0086] Furthermore, the present invention also provides a computer-readable storage medium. In a computer-readable storage medium embodiment according to the present invention, the computer-readable storage medium can be configured to store a program for executing the main driving sound field automatic control method of the above-mentioned method embodiment, and the program can be loaded and run by the processor to implement the above-mentioned main driving sound field automatic control method. For ease of explanation, only the parts related to the embodiment of the present invention are shown. For specific technical details not disclosed, please refer to the method part of the embodiment of the present invention. The computer-readable storage medium can be a storage device formed by various electronic devices. Optionally, the computer-readable storage medium in the embodiment of the present invention is a non-temporary computer-readable storage medium.

[0087] Furthermore, it should be understood that since the configuration of each module is merely for the purpose of illustrating the functional units of the apparatus of the present invention, the physical devices corresponding to these modules may be the processor itself, or a portion of the software in the processor, a portion of the hardware, or a combination of software and hardware. Therefore, the number of modules in the figure is merely illustrative.

[0088] Those skilled in the art will appreciate that the various modules in the device can be adaptively split or merged. Such splitting or merging of specific modules does not cause the technical solution to deviate from the principles of the present invention. Therefore, the technical solutions after splitting or merging will fall within the scope of protection of the present invention.

[0089] Thus far, the technical solutions of the present invention have been described in conjunction with the preferred embodiments shown in the accompanying drawings. However, it will be readily understood by those skilled in the art that the scope of protection of the present invention is obviously not limited to these specific embodiments. Without departing from the principles of the present invention, those skilled in the art may make equivalent changes or substitutions to the relevant technical features, and the technical solutions after such changes or substitutions will fall within the scope of protection of the present invention.

Claims

1. A method for automatically controlling the sound field of a main driver's seat, characterized in that: The steps include: Acquiring seat position information and relative position information of the driver's head relative to the seat; determining a first driver's head relative coordinate based on the seat position information and the relative position information of the driver's head relative to the seat; Obtaining a current sound field center position based on the first driver's head relative coordinates; Wherein, obtaining the current sound field center position based on the first driver's head relative coordinates further includes: Determining whether the first driver's head relative coordinates are consistent with the second driver's head relative coordinates, where the second driver's head relative coordinates are the last stored driver's head relative coordinates; if so, adding a flag 0 to the first driver's head relative coordinates; otherwise, adding a flag 1 to the first driver's head relative coordinates; When the relative coordinate identification bit of the first driver's head is 0, the current sound field center position is determined based on the sound field data corresponding to the relative coordinates of the second driver's head; when the relative coordinate identification bit of the first driver's head is 1, the sound field self-calibration is performed based on the relative coordinates of the first driver's head to determine the current sound field center position; Among them, the self-calibration of the sound field based on the first driver head relative coordinates to determine the current sound field center position further includes: obtaining a third driver head relative coordinate in the driver head relative coordinate historical data set whose difference with the first driver head relative coordinates is less than a difference threshold; and performing self-calibration of the sound field based on the third driver head relative coordinates to determine the current sound field center position.

2. The method for automatically controlling the sound field of the main driver according to claim 1, characterized in that: The seat position information includes at least one of seat horizontal position information, seat height position information, and seat back angle information.

3. The method for automatically controlling the sound field of the main driver's seat according to claim 2, characterized in that: Determining the relative coordinates of the first driver's head based on the seat position information and the relative position information of the driver's head relative to the seat further includes: obtaining the absolute coordinates of the current seat headrest based on the seat position information; Based on the absolute coordinates of the current seat headrest and the relative position information of the driver's head with respect to the seat, a first driver's head relative coordinate is determined.

4. The method for automatically controlling the sound field of the main driver's seat according to claim 1, characterized in that: Performing sound field self-calibration based on the third driver head relative coordinate to determine the current sound field center position further includes: When the driver head relative coordinate historical data set includes a third driver head relative coordinate whose difference with the first driver head relative coordinate is less than a difference threshold, determining the current sound field center position based on the third driver head relative coordinate; When the driver head relative coordinate historical data set contains multiple third driver head relative coordinates whose differences with the first driver head relative coordinates are less than a difference threshold, the current sound field center position is determined based on the multiple third driver head relative coordinates.

5. The method for automatically controlling the sound field of the main driver's seat according to claim 4, characterized in that: When the driver head relative coordinate historical data set includes a plurality of third driver head relative coordinates whose differences with the first driver head relative coordinates are less than a difference threshold, determining the current sound field center position based on the plurality of third driver head relative coordinates includes: determining the current sound field center position based on an average value of the plurality of third driver head relative coordinates; or The current sound field center position is determined by the third driver head relative coordinate having the smallest difference with the first driver head relative coordinate.

6. A main driving sound field automatic control system, characterized in that: include: an information acquisition device configured to acquire seat position information; an image acquisition device configured to obtain relative position information of the driver's head relative to the seat; a first controller configured to determine a first driver head relative coordinate based on the seat position information and relative position information of the driver's head relative to the seat; a second controller configured to obtain a current sound field center position based on the relative coordinates of the first driver's head; Wherein, the second controller further includes a judgment module, the judgment module being configured to judge whether the first driver's head relative coordinates are consistent with the second driver's head relative coordinates, the second driver's head relative coordinates being the last stored driver's head relative coordinates; If yes, add a flag 0 to the relative coordinates of the first driver's head; otherwise, add a flag 1 to the relative coordinates of the first driver's head; When the relative coordinate identification bit of the first driver's head is 0, the current sound field center position is determined based on the sound field data corresponding to the relative coordinates of the second driver's head; when the relative coordinate identification bit of the first driver's head is 1, the sound field self-calibration is performed based on the relative coordinates of the first driver's head to determine the current sound field center position; The judgment module further includes: a coordinate acquisition unit configured to acquire a third driver head relative coordinate in the driver head relative coordinate history data set, the difference between which and the first driver head relative coordinate is less than a difference threshold; The sound field center position unit is configured to perform sound field self-calibration based on the third driver head relative coordinates to determine the current sound field center position.

7. The automatic control system for the main driving sound field according to claim 6, wherein the first controller further comprises: a seat controller configured to obtain the absolute coordinates of a current seat headrest based on the seat position information; The vehicle controller is configured to determine the first relative coordinates of the driver's head based on the absolute coordinates of the current seat headrest and the relative position information of the driver's head relative to the seat.

8. The automatic control system for the main driver's sound field according to claim 7 is characterized in that: The sound field center position unit is further configured to, when the driver head relative coordinate history data set includes a third driver head relative coordinate whose difference with the first driver head relative coordinate is less than a difference threshold, determine the current sound field center position based on the third driver head relative coordinate; When the driver head relative coordinate historical data set contains multiple third driver head relative coordinates whose differences with the first driver head relative coordinates are less than a difference threshold, the current sound field center position is determined based on the multiple third driver head relative coordinates.

9. A control device comprising a processor and a storage device, wherein the storage device is adapted to store a plurality of program codes, wherein: The program code is suitable for being loaded and run by the processor to execute the main driver sound field automatic control method according to any one of claims 1 to 5.

10. A computer-readable storage medium storing a plurality of program codes, characterized in that: The program code is suitable for being loaded and run by a processor to execute the main driver sound field automatic control method according to any one of claims 1 to 5.

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