ADB headlight brightness adjustment method, device and storage medium, electronic equipment

Abstract

This invention discloses an ADB headlight brightness adjustment method, device, storage medium, and electronic device. The ADB headlight includes a first LED module and a second LED module. The method includes: acquiring vehicle operating condition information; determining the light pattern requirements of the ADB headlight based on the operating condition information; acquiring the influence factor matrix between each LED in the first and second LED modules; calculating the target brightness corresponding to each LED based on the light pattern requirements and the influence factor matrix; and controlling each LED to operate at its corresponding target brightness to achieve the light pattern requirements. This method is applicable to various LED light source hardware and can accurately achieve the light pattern requirements for the actual brightness of the ADB headlight, offering advantages such as strong applicability and high accuracy.

Description

Technical Field

[0001] This invention relates to the field of vehicle electronic control technology, specifically to an ADB headlight brightness adjustment method, device, storage medium, electronic equipment, and vehicle. Background Technology

[0002] Adaptive Driving Beam (ADB) headlights are gradually becoming standard equipment in vehicles, with automakers and component manufacturers launching various solutions. When designing related ADB products, it is often necessary to redesign the implementation scheme based on the capabilities of the LED light source hardware. The diverse light source equipment and varied final light pattern requirements combine to create multiple different solutions, significantly reducing the efficiency and stability of product development. Summary of the Invention

[0003] This invention aims to at least partially solve one of the technical problems in related technologies. Therefore, one objective of this invention is to propose an ADB headlight brightness adjustment method that is applicable to various different LED light source hardware and enables the actual brightness of the ADB headlight to accurately meet the light pattern requirements, possessing the advantages of strong applicability and high precision.

[0004] The second objective of this invention is to provide an ADB headlight brightness adjustment device.

[0005] A third objective of this invention is to provide a computer-readable storage medium.

[0006] The fourth objective of this invention is to provide an electronic device.

[0007] The fifth objective of this invention is to provide a vehicle.

[0008] To achieve the above objectives, a first aspect of the present invention provides an ADB headlight brightness adjustment method, wherein the ADB headlight includes a first LED module and a second LED module. The method includes: acquiring vehicle operating condition information; determining the light pattern requirement of the ADB headlight based on the operating condition information; acquiring an influence factor matrix between each LED in the first LED module and the second LED module; calculating the target brightness corresponding to each LED based on the light pattern requirement and the influence factor matrix; and controlling each LED to operate at its corresponding target brightness to achieve the light pattern requirement.

[0009] According to the ADB headlight brightness adjustment method of this invention, when achieving the light pattern requirement based on operating condition information, the method considers the influence of the illumination brightness within the illumination angle range of each LED in the first LED module and the second LED module on the illumination angle and calibrated brightness of other LEDs. Based on the influence factor matrix between each LED in the first LED module and the light pattern requirement, the method calculates the target brightness corresponding to each LED, ensuring that the actual brightness of the ADB headlight accurately meets the light pattern requirement. This ADB headlight brightness adjustment method is applicable to various LED light source hardware, improving the efficiency and stability of product development, and ensuring that the actual brightness of the ADB headlight accurately meets the light pattern requirement. It has the advantages of strong applicability and high accuracy.

[0010] In addition, the ADB headlight brightness adjustment method proposed in the above embodiments of the present invention may also have the following additional technical features:

[0011] According to an embodiment of the present invention, the light pattern requirement includes: light pattern intervals and their corresponding interval brightness; obtaining the influence factor matrix between each LED bead in the first LED module and the second LED module includes: obtaining the first origin position of the first LED module and the second origin position of the second LED module, and the first illumination angle range of each LED bead in the first LED module at the first origin position and the second illumination angle range of each LED bead in the second LED module at the second origin position; determining the virtual center position of the first LED module and the second LED module based on the first origin position and the second origin position; converting the first illumination angle range and the second illumination angle range of each LED bead to the light pattern interval under the virtual center position to obtain the correspondence between the illumination angle range of each LED bead and the light pattern interval; calculating the illumination influence range factor of each LED bead and all other LED beads based on the correspondence between the illumination angle range of each LED bead and the light pattern interval and the brightness calibration value of each LED bead to obtain the influence factor matrix.

[0012] According to one embodiment of the present invention, calculating the target brightness corresponding to each of the LED beads includes: determining a target light pattern interval and its corresponding target interval brightness based on the operating condition information, wherein the target light pattern interval is determined from the light pattern interval, and the target interval brightness is determined from the interval brightness; and determining the target brightness corresponding to each of the LED beads based on the target light pattern interval, the target interval brightness, the influence factor matrix, and the brightness calibration value of each of the LED beads.

[0013] According to one embodiment of the present invention, the operating condition information includes steering requirements, anti-glare requirements, and customized lighting requirements. When the operating condition information includes multiple requirements, the target light pattern interval corresponding to each requirement and its corresponding target interval brightness are determined; it is determined whether the target light pattern intervals corresponding to each requirement overlap; when there is an overlapping area, the target interval brightness of each requirement in the overlapping area is compared, and the minimum target interval brightness is taken as the target interval brightness of the overlapping area.

[0014] According to one embodiment of the present invention, after determining the target LED beads and their corresponding target brightness information in the first LED module and the second LED module, the method further includes: detecting whether each LED bead and its corresponding target brightness meet the light pattern requirements; if not, correcting the target LED bead and its corresponding target brightness.

[0015] According to one embodiment of the present invention, the first LED module and the second LED module include one-dimensional LED beads and two-dimensional LED beads, wherein the LED beads include monochrome LED beads and RGB LED beads.

[0016] To achieve the above objectives, a second aspect of the present invention provides an ADB headlight brightness adjustment device. The ADB headlight includes a first LED module and a second LED module. The device includes: a determining module, configured to acquire vehicle operating condition information and determine the light pattern requirement of the ADB headlight based on the operating condition information; an acquiring module, configured to acquire an influence factor matrix between each LED in the first LED module and the second LED module; a calculating module, configured to calculate the target brightness corresponding to each LED based on the light pattern requirement and the influence factor matrix; and a controlling module, configured to control each LED to operate at its corresponding target brightness to achieve the light pattern requirement.

[0017] To achieve the above objectives, a third aspect of the present invention provides a computer-readable storage medium having a computer program stored thereon, wherein when the computer program is executed by a processor, it implements the ADB headlight brightness adjustment method as proposed in the first aspect of the present invention.

[0018] To achieve the above objectives, a fourth aspect of the present invention provides an electronic device, including a memory and a processor, wherein the memory stores a computer program, and when the computer program is executed by the processor, it implements the ADB headlight brightness adjustment method as proposed in the first aspect of the present invention.

[0019] To achieve the above objectives, a fifth aspect of the present invention provides a vehicle including ADB headlights and electronic equipment as provided in the fourth aspect of the present invention.

[0020] Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0021] Figure 1 This is a flowchart of an ADB headlight brightness adjustment method according to an embodiment of the present invention;

[0022] Figure 2 This is a flowchart illustrating the process of obtaining the influence factor matrix according to an embodiment of the present invention;

[0023] Figure 3 This is a schematic diagram illustrating the virtual center location according to an embodiment of the present invention;

[0024] Figure 4 This is a flowchart illustrating the calculation of the target brightness corresponding to each LED bead according to an embodiment of the present invention;

[0025] Figure 5 This is a schematic diagram of the basic beam pattern of an ADB headlight according to an embodiment of the present invention;

[0026] Figure 6 A schematic diagram of the ADB headlight configuration for a left turn requirement according to one embodiment of the present invention;

[0027] Figure 7 This is a flowchart of an ADB headlight brightness adjustment method according to a specific embodiment of the present invention;

[0028] Figure 8 This is a flowchart of an ADB headlight brightness adjustment method according to another embodiment of the present invention;

[0029] Figure 9 This is a schematic diagram of an ADB headlight brightness adjustment device according to an embodiment of the present invention;

[0030] Figure 10 This is a schematic diagram of a vehicle according to an embodiment of the present invention. Detailed Implementation

[0031] Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.

[0032] The ADB headlight brightness adjustment method, device, storage medium, electronic device, and vehicle of the present invention will be described in detail below with reference to the specifications 1-10 and specific implementation methods.

[0033] The ADB headlight in this embodiment of the invention includes a first LED module and a second LED module.

[0034] Specifically, the first LED module and the second LED module are installed on the left and right sides of the front of the vehicle, respectively. The first LED module is the left headlight, and the second LED module is the right headlight.

[0035] In embodiments of the present invention, the first LED module and the second LED module include one-dimensional LED beads and two-dimensional LED beads, and the LED beads include monochrome LED beads and RGB LED beads.

[0036] In embodiments of the present invention, the first LED module and the second LED module can be one-dimensional LED beads or two-dimensional LED beads, i.e., an LED bead matrix. When the number of LED beads in the LED bead matrix is ​​greater than a preset number, the ADB (Adaptive Beam Control) function for customized light and shadow animation can be realized, that is, the pattern of the entire illumination area can be customized. To enhance the illumination effect of the ADB headlight, the LED beads can include monochrome LED beads and RGB LED beads to meet diverse illumination needs.

[0037] The ADB headlight brightness adjustment method of this invention is applicable to one-dimensional or two-dimensional LED beads, which may include LED modules containing monochrome LED beads and RGB LED beads. Even with the emergence of hardware LED modules with megapixel resolution and above, and the potential future development of color LED modules, the ADB headlight brightness adjustment method of this invention remains applicable.

[0038] Figure 1 This is a flowchart of an ADB headlight brightness adjustment method according to an embodiment of the present invention. Figure 1 As shown, the ADB headlight brightness adjustment method may include:

[0039] S1: Obtain vehicle operating condition information and determine the beam pattern requirements of ADB headlights based on the operating condition information.

[0040] Specifically, vehicle operating condition information can be obtained from the relevant ECU (Electronic Control Unit) module, where different operating condition information corresponds to different light pattern requirements. The light pattern requirements of the ADB headlights, i.e., the target light pattern range and its corresponding target range brightness, can be determined based on the operating condition information.

[0041] The operating condition information in this embodiment of the invention may include other requirements such as steering requirements, anti-glare requirements, and customized lighting requirements. Steering requirements include left-turning requirements and right-turning requirements. The left-turning requirement is to enhance the brightness of the left side of the illumination area, so that the brightness of a preset area on the left side of the illumination area reaches the predicted brightness. The right-turning requirement is to enhance the brightness of the right side of the illumination area, so that the brightness of a preset area on the right side of the illumination area reaches the predicted brightness. The anti-glare requirement can be determined by using the anti-glare target location information acquired by the camera, converting the anti-glare target location information from the camera to the vehicle angle, obtaining the anti-glare target location information from the vehicle angle, and then determining the target light pattern range and its corresponding target range brightness.

[0042] S2, obtain the influence factor matrix between each LED bead in the first LED module and the second LED module.

[0043] Because the illumination brightness of each LED in the first and second LED modules within their respective illumination angle ranges is affected by the illumination angles and calibrated brightness of other LEDs in the same LED module, this invention aims to accurately achieve the target light pattern requirement by calculating the illumination influence range factor of each LED in the first and second LED modules compared to all other LEDs. Based on the light pattern requirement and the influence factor matrix, the target brightness corresponding to each LED is calculated, ensuring that the actual brightness within the target range accurately reaches the target brightness.

[0044] S3, calculate the target brightness of each LED bead based on the light pattern requirements and the influence factor matrix.

[0045] Specifically, the light pattern requirements include: light pattern ranges and their corresponding range luminances. Based on the influence factor matrix and the light pattern ranges and their corresponding range luminances, the target luminance for each LED chip is calculated.

[0046] S4 controls each LED bead to operate at its corresponding target brightness to achieve the light pattern requirements.

[0047] Specifically, based on the calculated target brightness of each LED bead, each LED bead is controlled to operate at its corresponding target brightness in order to achieve the target light pattern requirement.

[0048] It should be noted that the light pattern range in the light pattern requirements is determined from the perspective of the vehicle as the center. As for the basic calibration information of the light source hardware, such as the illumination angle of each LED in the LED module, it is determined from the perspective of the LED module as the center. The brightness information also refers to the rated brightness of each LED in the LED module. The supplier can provide this basic calibration information for the light source hardware.

[0049] This invention aims to improve the applicability of the ADB headlight brightness adjustment method, enhance product development efficiency and stability, and reduce the impact of light source hardware upgrades on the ADB headlight brightness adjustment method. The illumination angles of each LED in the first and second LED modules are mapped to an angle centered on the vehicle. Considering the influence of the illumination angles and calibrated brightness of other LEDs in the first and second LED modules on the brightness within the illumination angle range of each LED in the first and second LED modules, an influence factor matrix among the LEDs in the first and second LED modules is calculated.

[0050] In one embodiment of the present invention, such as Figure 2 As shown, the light pattern requirements include: light pattern ranges and their corresponding range brightness. Obtaining the influence factor matrix between each LED in the first and second LED modules may include:

[0051] S21, obtain the first origin position of the first LED module and the second origin position of the second LED module, as well as the first illumination angle range of each LED in the first LED module at the first origin position and the second illumination angle range of each LED in the second LED module at the second origin position.

[0052] Specifically, such as Figure 3 As shown, the first origin position of the first LED module and the second origin position of the second LED module are obtained, that is, the coordinates of the first LED module and the second LED module with the vehicle as the center. Then, the first illumination angle range of each LED in the first LED module at the first origin position and the second illumination angle range of each LED in the second LED module at the second origin position are obtained.

[0053] S22, determine the virtual center position of the first LED module and the second LED module based on the first origin position and the second origin position.

[0054] Specifically, such as Figure 3 As shown, the distance between the first LED module and the second LED module is determined based on the first origin position of the first LED module and the second origin position of the second LED module. Furthermore, the virtual center position of the first LED module and the second LED module, centered on the vehicle, and the overall light pattern range (large fan-shaped area) of the vehicle's headlights are determined based on the first illumination angle range of each LED in the first LED module at the first origin position and the second illumination angle range of each LED in the second LED module at the second origin position. It should be noted that... Figure 3 In the diagram, -5-25 on the left indicates the illumination distance of the LED beads, in meters. In one embodiment of the invention, the light pattern range and the range brightness can be represented by [0, 100%].

[0055] S23, convert the first illumination angle range and the second illumination angle range of each LED bead to the light pattern interval under the virtual center position, and obtain the correspondence between the illumination angle range and the light pattern interval of each LED bead.

[0056] Specifically, the first and second illumination angle ranges of each LED bead are converted into the overall light pattern range under the virtual center position to obtain the correspondence between the illumination angle range of each LED bead and the overall light pattern range.

[0057] S24. Based on the correspondence between the illumination angle range and light pattern interval of each LED bead and the brightness calibration value of each LED bead, calculate the illumination influence range factor of each LED bead and all other LED beads to obtain the influence factor matrix.

[0058] Specifically, the influence factor (influence_matrix(n*n, a square matrix)) is calculated for the irradiation range of each LED and all other LEDs, where n is the number of LEDs. When there are n LEDs, and the LEDs are numbered 1-n, influence_matrix[m][k] represents the range of influence factor of the m-th LED on the k-th LED, which is [0,1], where 1≤m≤n, 1≤k≤n, and m≠k. If the irradiation ranges of the two LEDs do not overlap, then influence_matrix[m][k]=0; if the irradiation ranges of the two LEDs completely overlap, then influence_matrix[m][k]=1. The closer the center of the m-th LED's irradiation range is to the center of the k-th LED's irradiation range, and the larger the proportion of the overlapping area to the area illuminated by the k-th LED, the closer the influence factor is to 1. By calculating the degree of overlap between the irradiation ranges of each LED and all other LEDs, the influence factor matrix can be obtained.

[0059] In this embodiment of the invention, the illumination angle range of the LED module is mapped to an overall light pattern range centered on the vehicle, and the influence range factor of each LED bead on the illumination of all other LED beads is calculated to dynamically calculate the brightness of the overlapping area of ​​LED bead illumination. Based on the target light pattern range, the target range brightness, the influence factor matrix, and the brightness calibration value of each LED bead, the target brightness corresponding to each LED bead is determined, and the actual range and brightness of the ADB headlight accurately meet the light pattern requirements.

[0060] In one embodiment of the present invention, such as Figure 4 As shown, calculating the target brightness for each LED bead can include:

[0061] S31, Based on the operating condition information, determine the target light pattern range and its corresponding target range brightness, wherein the target light pattern range is determined from the light pattern range, and the target range brightness is determined from the range brightness;

[0062] S32, based on the target light pattern range, target range brightness, influence factor matrix and brightness calibration value of each LED bead, determine the target brightness corresponding to each LED bead.

[0063] Specifically, the light pattern requirement includes the target light pattern range and the corresponding target range brightness. The brightness type can include single brightness or gradient brightness. When the brightness type is gradient brightness, it can also represent the left and right boundary brightness of the gradient brightness, so as to realize the light pattern requirement based on the specific information.

[0064] In one embodiment of the present invention, the target light pattern range and its corresponding target range brightness can be represented by [a, b%], where 0 ≤ a < b ≤ 100.

[0065] Specifically, each LED has its own illumination range. If the first and second LED modules have a total of n LEDs, the light pattern requirements obtained from the operating conditions are mapped to the brightness requirements of the illumination range of each LED. The target light pattern range and its corresponding target range brightness can be represented as REQ(n*1, column vector), and the target brightness of each LED can be represented as X(1*n, row vector). Calculating the target brightness of each LED is equivalent to solving the linear equation system influence_matrix*X=REQ. Since the solution yields the target brightness of each LED, it is necessary for the solution to be non-negative in engineering. As an example, Matlab provides the lsqnonneg method and many approximation methods for solving linear equation systems to address this problem.

[0066] Figure 5 This diagram illustrates the basic beam pattern of an ADB headlight according to an embodiment of the present invention. As an example, when the operating condition information indicates a left turn requirement, the target beam pattern range and its corresponding target range brightness are determined based on the left turn requirement. Using the method described above, the target brightness corresponding to each LED is calculated, and each LED is controlled to operate at its corresponding target brightness to achieve the ADB headlight beam pattern requirement during a left turn. See [link to documentation]. Figure 6 .

[0067] In one embodiment of the present invention, such as Figure 7 As shown, the operating condition information may include steering requirements, anti-glare requirements, and customized lighting requirements. When the operating condition information includes multiple requirements, the target light pattern range corresponding to each requirement and its corresponding target range brightness are determined.

[0068] Determine whether there is any overlap between the target light pattern ranges corresponding to each requirement;

[0069] When overlapping regions exist, compare the target interval brightness of each requirement within the overlapping region, and use the minimum target interval brightness as the target interval brightness of the overlapping region.

[0070] For example, when a vehicle needs to turn, there may also be other requirements such as anti-glare requirements. Therefore, when the acquired operating condition information includes multiple requirements (two or more), the target light pattern interval corresponding to each requirement and its corresponding target interval brightness are determined. It is then determined whether the target light pattern intervals corresponding to each requirement overlap.

[0071] When there is no overlapping area, the target brightness of each LED is determined directly based on the target light pattern range, the target range brightness, the influence factor matrix, and the brightness calibration value of each LED.

[0072] When there are overlapping areas, compare the target interval brightness of each requirement in the overlapping area, and take the minimum target interval brightness as the target interval brightness of the overlapping area. Then, based on the target light pattern interval, target interval brightness, influence factor matrix and brightness calibration value of each LED, determine the target brightness corresponding to each LED.

[0073] In one embodiment of the present invention, such as Figure 5 As shown, after determining the target LED beads and their corresponding target brightness information in the first LED module and the second LED module, the process may further include:

[0074] S5 checks whether the brightness of each LED bead and its corresponding target brightness meet the light pattern requirements.

[0075] S6, when it does not meet the requirements, correct the target LED bead and its corresponding target brightness.

[0076] Specifically, the accuracy of the calculation results is checked again. For example, are there any anti-glare target areas that are not turned off? Do the results conflict with the rules? If so, they are corrected according to the brightness specified in the rules. By checking and correcting the solution results, it is ensured that the results meet the needs of the actual project.

[0077] The ADB headlight brightness adjustment method of this invention, when achieving the light pattern requirement based on operating condition information, considers the influence of the illumination brightness of each LED bead within the illumination angle range of the first LED module and the second LED module on the illumination angle and calibrated brightness of other LED beads. Based on the influence factor matrix between each LED bead in the first LED module and the light pattern requirement, the target brightness corresponding to each LED bead is calculated, ensuring that the actual brightness of the ADB headlight accurately meets the light pattern requirement. This ADB headlight brightness adjustment method of this invention is applicable to various different LED light source hardware, improving the efficiency and stability of product development, and ensuring that the actual brightness of the ADB headlight accurately meets the light pattern requirement. It has the advantages of strong applicability and high accuracy.

[0078] This invention provides an ADB headlight brightness adjustment device.

[0079] Figure 9 This is a schematic diagram of the structure of an ADB headlight brightness adjustment device according to an embodiment of the present invention. Figure 9 As shown, the ADB headlight includes a first LED module and a second LED module, and the ADB headlight brightness adjustment device 100 may include a determining module 10, an acquiring module 20, a calculating module 30 and a controlling module 40.

[0080] The system includes a determination module 10 for acquiring vehicle operating condition information and determining the light pattern requirements of the ADB headlights based on the operating condition information; an acquisition module 20 for acquiring the influence factor matrix between each LED in the first LED module and the second LED module; a calculation module 30 for calculating the target brightness corresponding to each LED based on the light pattern requirements and the influence factor matrix; and a control module 40 for controlling each LED to operate at its corresponding target brightness to achieve the light pattern requirements.

[0081] It should be noted that other specific embodiments of the ADB headlight brightness adjustment device provided in the embodiments of the present invention can be found in other specific embodiments of the ADB headlight brightness adjustment method of the above embodiments of the present invention.

[0082] The ADB headlight brightness adjustment device of this invention, when fulfilling the light pattern requirements based on operating condition information, considers the influence of the illumination brightness of each LED bead within the illumination angle range of the first and second LED modules on the illumination angles and calibrated brightness of other LED beads. Based on the influence factor matrix between each LED bead in the first and second LED modules and the light pattern requirements, it calculates the target brightness corresponding to each LED bead, thus accurately achieving the light pattern requirements in the actual range and brightness of the ADB headlight. This ADB headlight brightness adjustment device of this invention is applicable to various different LED light source hardware, improving the efficiency and stability of product development, and enabling the actual brightness of the ADB headlight to accurately meet the light pattern requirements. It has the advantages of strong applicability and high accuracy.

[0083] This invention provides a computer-readable storage medium.

[0084] In this embodiment, a computer program is stored on a computer-readable storage medium. When the computer program is executed by a processor, it implements the ADB headlight brightness adjustment method described above.

[0085] This invention provides an electronic device.

[0086] In this embodiment, the electronic device includes a memory and a processor. The memory stores a computer program, and when the computer program is executed by the processor, it implements the ADB headlight brightness adjustment method described above.

[0087] This invention provides a vehicle.

[0088] Figure 10 This is a schematic diagram of a vehicle according to an embodiment of the present invention, as shown below. Figure 10 As shown, vehicle 200 may include ADB headlights 201 and the aforementioned electronic devices.

[0089] The computer-readable storage medium, electronic device, and vehicle in the embodiments of the present invention utilize the above-described ADB headlight brightness adjustment method to ensure that the actual brightness of the ADB headlight accurately meets the light pattern requirements.

[0090] It should be noted that the logic and / or steps represented in the flowchart or otherwise described herein, for example, can be considered as a sequenced list of executable instructions for implementing logical functions, and can be embodied in any computer-readable medium for use by, or in conjunction with, an instruction execution system, apparatus, or device (such as a computer-based system, a processor-included system, or other system that can fetch and execute instructions from, an instruction execution system, apparatus, or device). For the purposes of this specification, "computer-readable medium" can be any means that can contain, store, communicate, propagate, or transmit programs for use by, or in conjunction with, an instruction execution system, apparatus, or device. More specific examples (a non-exhaustive list) of computer-readable media include: an electrical connection having one or more wires (electronic device), a portable computer disk drive (magnetic device), random access memory (RAM), read-only memory (ROM), erasable and editable read-only memory (EPROM or flash memory), fiber optic devices, and portable optical disc read-only memory (CDROM). Alternatively, the computer-readable medium may be paper or other suitable media on which the program can be printed, since the program can be obtained electronically, for example, by optically scanning the paper or other medium, followed by editing, interpreting, or otherwise processing as necessary, and then stored in a computer memory.

[0091] It should be understood that various parts of the present invention can be implemented in hardware, software, firmware, or a combination thereof. In the above embodiments, multiple steps or methods can be implemented in software or firmware stored in memory and executed by a suitable instruction execution system. For example, if implemented in hardware, as in another embodiment, it can be implemented using any one or a combination of the following techniques known in the art: discrete logic circuits having logic gates for implementing logical functions on data signals, application-specific integrated circuits (ASICs) having suitable combinational logic gates, programmable gate arrays (PGAs), field-programmable gate arrays (FPGAs), etc.

[0092] In the description of this specification, references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0093] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0094] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0095] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0096] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "over," and "on top" of the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0097] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A method for adjusting the brightness of an ADB headlight, characterized in that, The ADB headlight includes a first LED module and a second LED module, and the method includes: Obtain vehicle operating condition information and determine the light pattern requirements of the ADB headlights based on the operating condition information; Obtain the influence factor matrix between each LED bead in the first LED module and the second LED module; Based on the light pattern requirements and the influence factor matrix, calculate the target brightness corresponding to each LED bead; Each LED bead is controlled to operate at its corresponding target brightness to achieve the light pattern requirement; The light pattern requirements include: light pattern ranges and their corresponding range brightness; obtaining the influence factor matrix between each LED bead in the first LED module and the second LED module, including: Obtain the first origin position of the first LED module and the second origin position of the second LED module, as well as the first illumination angle range of each LED in the first LED module at the first origin position and the second illumination angle range of each LED in the second LED module at the second origin position; Based on the first origin position and the second origin position, determine the virtual center positions of the first LED module and the second LED module; The first and second illumination angle ranges of each LED bead are converted into the light pattern interval under the virtual center position to obtain the correspondence between the illumination angle range and the light pattern interval of each LED bead. Based on the correspondence between the illumination angle range and light pattern interval of each LED bead and the brightness calibration value of each LED bead, the illumination influence range factor of each LED bead and all other LED beads is calculated to obtain the influence factor matrix.

2. The ADB headlight brightness adjustment method according to claim 1, characterized in that, Calculating the target brightness corresponding to each of the LED beads includes: Based on the operating condition information, the target light pattern range and its corresponding target range brightness are determined, wherein the target light pattern range is determined from the light pattern range, and the target range brightness is determined from the range brightness; The target brightness of each LED is determined based on the target light pattern range, the target range brightness, the influence factor matrix, and the brightness calibration value of each LED.

3. The ADB headlight brightness adjustment method according to claim 2, characterized in that, The operating condition information includes steering requirements, anti-glare requirements, and customized lighting requirements. When the operating condition information includes multiple requirements, the target light pattern range corresponding to each requirement and its corresponding target range brightness are determined. Determine whether there is any overlap between the target light pattern ranges corresponding to each requirement; When there are overlapping regions, compare the target interval brightness of each requirement in the overlapping region, and take the minimum target interval brightness as the target interval brightness of the overlapping region.

4. The ADB headlight brightness adjustment method according to claim 1, characterized in that, After determining the target LED beads and their corresponding target brightness information in the first LED module and the second LED module, the method further includes: Detect whether each of the LED beads and its corresponding target brightness meets the light pattern requirements; If the target LED bead and its corresponding target brightness do not meet the requirements, the target LED bead and its corresponding target brightness are corrected.

5. The ADB headlight brightness adjustment method according to any one of claims 1-4, characterized in that, The first LED module and the second LED module include one-dimensional LED beads and two-dimensional LED beads, and the LED beads include monochrome LED beads and RGB LED beads.

6. An ADB headlight brightness adjustment device, suitable for using the ADB headlight brightness adjustment method according to any one of claims 1-5, characterized in that, The ADB headlight includes a first LED module and a second LED module, and the device includes: The determination module is used to acquire the vehicle's operating condition information and determine the light pattern requirements of the ADB headlights based on the operating condition information. The acquisition module is used to acquire the influence factor matrix between each LED bead in the first LED module and the second LED module; The calculation module is used to calculate the target brightness corresponding to each of the LED beads based on the light pattern requirements and the influence factor matrix. The control module is used to control each of the LED beads to operate at its corresponding target brightness in order to achieve the light pattern requirements.

7. A computer-readable storage medium having a computer program stored thereon, characterized in that, When the computer program is executed by the processor, it implements the ADB headlight brightness adjustment method as described in any one of claims 1-5.

8. An electronic device, comprising a memory and a processor, wherein the memory stores a computer program, characterized in that, When the computer program is executed by the processor, it implements the ADB headlight brightness adjustment method as described in any one of claims 1-5.

9. A vehicle, characterized in that, The vehicle includes ADB headlights and the electronic equipment as described in claim 8.

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