Processing method and vehicle lamp module

Abstract

The invention provides a processing method and a vehicle lamp module, and relates to the technical field of vehicle lamps, and the processing method comprises the steps: obtaining basic data based on a basic light beam, obtaining matching data based on the basic data, enabling the matching data to correspond to a matching light beam, enabling a projection module to emit the matching light beam based on the matching data, and superposing the matching light beam with the basic light beam, and forming a target beam. Wherein the projection light pattern of the matching light beam covers at least partial area of the projection light pattern of the basic light beam, and the light intensity distribution of the projection light pattern of the target light beam is gradually reduced from the light beam center to the light beam edge based on the matching light beam. In other words, in the process from the maximum light intensity position to the edge of the light beam in the projection light pattern of the target light beam, the light intensity value does not change dramatically, that is, the light intensity values of all positions change gently in the process from the maximum light intensity position to the edge of the light beam, the illumination uniformity of the vehicle lamp module is improved, and the safety and comfort of vehicle driving are effectively improved.

Description

Technical Field

[0001] The present application relates to the technical field of vehicle lamps, and in particular to a processing method and a vehicle lamp module. Background Art

[0002] With the development of vehicle lighting technology, vehicle lighting functions are becoming more and more abundant, especially headlights, which can realize functions such as low beam, high beam, and adaptive high beam, to protect the driving of the entire vehicle.

[0003] As car lights become increasingly versatile, people are paying more and more attention to the lighting effects of car lights, such as the uniformity of car light lighting, which requires good uniformity of car light lighting to ensure the safety and comfort of driving the entire vehicle. Summary of the invention

[0004] In view of this, the present application provides a processing method and a vehicle light module, and the scheme is as follows:

[0005] A processing method is applied to a vehicle lamp module, wherein the vehicle lamp module comprises a basic module and a projection module, wherein the basic module is used to emit a basic light beam, and the projection module is used to emit a matching light beam; the processing method comprises:

[0006] Acquire basic data based on the basic light beam, the basic data including light pattern data and light intensity distribution data of the basic light beam, the light pattern data characterizes the projection light pattern of the basic light beam, and the light intensity distribution data characterizes the light intensity value at each location of the projection light pattern of the basic light beam;

[0007] Acquire matching data based on the basic data, the matching data corresponding to the matching light beam, the matching data including light type data and light intensity distribution data of the matching light beam;

[0008] The projection module emits the matching light beam based on the matching data, and superimposes the matching light beam with the basic light beam to form a target light beam, wherein the target light beam is an outgoing light beam of the headlight module;

[0009] Among them, the projection light pattern of the matching light beam covers at least a partial area of ​​the projection light pattern of the basic light beam. Based on the matching light beam, the light intensity distribution of the projection light pattern of the target light beam gradually decreases from the center of the light pattern to the edge of the beam, and the center of the light pattern is the maximum light intensity position of the projection light pattern of the target light beam.

[0010] Optionally, the basic module is a low beam module, and the basic light beam is a basic low beam; forming a target light beam comprises:

[0011] The projection module emits the matching light beam based on the matching data, and superimposes the matching light beam with the basic light beam to form a low-beam light beam, where the low-beam light beam is the target light beam;

[0012] or,

[0013] The projection module emits the matching light beam based on the matching data, and superimposes the matching light beam with the basic light beam to form a high-beam light beam, and the high-beam light beam is the target light beam.

[0014] Optionally, acquiring matching data based on the basic data includes:

[0015] Acquire target data based on the basic data, the target data corresponding to the target light beam, the target data including light type data and light intensity distribution data of the target light beam;

[0016] Removing the portion of the target data belonging to the basic data to obtain the matching data;

[0017] Wherein, acquiring target data based on the basic data includes:

[0018] Acquire the light type data of the target light beam based on the light type data of the base light beam;

[0019] Based on the light intensity distribution data of the base light beam and the light type data of the target light beam, the light intensity distribution data of the target light beam is obtained; wherein, based on the light intensity distribution data of the target light beam, the light intensity distribution of the projection light type of the target light beam gradually decreases from the center of the light type to the edge of the light type.

[0020] Optionally, the projection module includes a plurality of light-emitting units arranged in M ​​rows and N columns, M≥1, N≥1, the projection module controls the light-emitting angle and light intensity value of each of the plurality of light-emitting units, and the projection light pattern of the matching light beam is formed by the light beams emitted by at least some of the plurality of light-emitting units; wherein the projection light pattern of the target light beam includes a plurality of pixel units arranged in m rows and n columns, 1≤m≤M, 1≤n≤N, and the plurality of pixel units correspond one-to-one to at least some of the light-emitting units; based on the light intensity distribution data of the basic light beam and the light pattern data of the target light beam, obtaining the light intensity distribution data of the target light beam includes:

[0021] Based on the light intensity distribution data of the base light beam and the light pattern data of the target light beam, determine the maximum light intensity position of the projection light pattern of the target light beam and the maximum light intensity value of the target light beam; wherein the projection light pattern of the target light beam has only one maximum light intensity position;

[0022] A coordinate system is established based on the projection light pattern of the target light beam, wherein the coordinate system takes the maximum light intensity position of the projection light pattern of the target light beam as the coordinate origin, and the abscissa of the coordinate system is parallel to a first direction, and the ordinate is parallel to a second direction, the first direction is parallel to the row direction of the plurality of light-emitting units, and the second direction is parallel to the column direction of the plurality of light-emitting units;

[0023] Based on the correspondence between the light intensity values ​​of the plurality of pixel units and the coordinate positions of the pixel units, the light intensity value of each pixel unit in the plurality of pixel units is obtained to obtain the light intensity distribution data of the target light beam;

[0024] The corresponding relationship between the light intensity values ​​and the coordinate positions of the plurality of pixel units is:

[0025] , z is the light intensity value of the pixel unit, x is the coordinate position of the pixel unit, and A, B, C, and D are coefficients.

[0026] Optionally, the projection module emitting the matching light beam based on the matching data comprises:

[0027] Based on the light intensity value of each pixel unit in the plurality of pixel units and the light intensity distribution data of the basic light beam, acquiring the light intensity value of at least part of the light emitting units;

[0028] The projection module emits the matching light beam based on the light intensity value of at least part of the light-emitting units and the projection light type of the target light beam.

[0029] Optionally, based on the relationship between the light intensity values ​​of the plurality of pixel units and the coordinate positions of the pixel units, acquiring the light intensity value of each pixel unit in the plurality of pixel units includes:

[0030] Obtain a first corresponding relationship, where the first corresponding relationship is a corresponding relationship between the light intensity values ​​of the row pixel units of the multiple pixel units and the coordinate positions of the pixel units, and the row pixel units are any row of m rows of pixel units in the multiple pixel units; wherein the first corresponding relationship is:

[0031] , is the horizontal coordinate position of the pixel unit;

[0032] Based on the first corresponding relationship and the coordinate position of the pixel unit, obtaining the light intensity value of each row of pixel units of the plurality of pixel units;

[0033] or,

[0034] A second corresponding relationship is obtained, where the second corresponding relationship is a corresponding relationship between the light intensity values ​​of the column pixel units of the multiple pixel units and the coordinate positions of the pixel units, and the column pixel units are any column of the n columns of pixel units in the multiple pixel units; the second corresponding relationship is:

[0035] , is the ordinate position of the pixel unit;

[0036] Based on the second corresponding relationship and the coordinate position of the pixel unit, the light intensity value of each column of the plurality of pixel units is acquired.

[0037] Optionally, obtaining the first corresponding relationship includes:

[0038] Obtaining a first correspondence between the light intensity value of each pixel unit in the 1st row to the mth row and the coordinate position of the pixel unit;

[0039] Wherein, obtaining the first corresponding relationship between the light intensity value of the pixel unit in the i-th row from the 1st row to the m-th row and the coordinate position of the pixel unit includes:

[0040] Partitioning the i-th row of pixel units, the i-th row of pixel units comprising a first part and a second part respectively located on both sides of a ordinate axis of the coordinate system, the first part comprising pixel units in the i-th row of pixel units located on the ordinate axis, and the second part also comprising pixel units in the i-th row of pixel units located on the ordinate axis;

[0041] Select three pixel units in the first part as first control points, and set the light intensity value of the first control points; select three pixel units in the second part as second control points, and set the light intensity value of the second control points; the three pixel units as the first control points include a first endpoint pixel unit, a second endpoint pixel unit and a first intermediate pixel unit, the first endpoint pixel unit is a pixel unit located on the vertical axis, the second endpoint pixel unit is a pixel unit farthest from the vertical axis in the first part, and the first intermediate pixel unit is any pixel unit in the first part except the first endpoint pixel unit and the second endpoint pixel unit; the at least three pixel units as the second control points include the first endpoint pixel unit, a third endpoint pixel unit and a second intermediate pixel unit, the third endpoint pixel unit is a pixel unit farthest from the vertical axis in the second part, and the second intermediate pixel unit is any pixel unit in the second part except the first endpoint pixel unit and the third endpoint pixel unit;

[0042] Based on the slope of the first control point and the set light intensity value of the first control point, obtaining a first corresponding relationship between the light intensity value of the pixel unit of the first part and the coordinate position of the pixel unit;

[0043] Based on the slope of the second control point and the set light intensity value of the second control point, obtaining a first corresponding relationship between the light intensity value of the pixel unit of the second part and the coordinate position of the pixel unit;

[0044] Among them, the light intensity value of the first endpoint pixel unit is the largest and the slope is 0, the slope of the second endpoint pixel unit is the product of the slope of the straight line between it and the first intermediate pixel unit and the edge slope ratio, and the slope of the first intermediate pixel unit is the slope of the straight line between the first endpoint pixel unit and the second endpoint pixel unit; the slope of the third endpoint pixel unit is the product of the slope of the straight line between it and the second intermediate pixel unit and the edge slope ratio, and the slope of the second intermediate pixel unit is the slope of the straight line between the first endpoint pixel unit and the third endpoint pixel unit, and the edge slope ratio is a set value.

[0045] Optionally, the low beam is the target beam, and the processing method further includes:

[0046] Acquiring cutoff line data of the target light beam, wherein the cutoff line data of the target light beam includes light intensity distribution data within a cutoff line thickness range of the target light beam;

[0047] Wherein, obtaining the cutoff line data of the target light beam comprises:

[0048] Acquire a cutoff line shape and a cutoff line position of the target light beam based on the light type data of the target light beam;

[0049] Setting the cut-off line intensity value and the cut-off line thickness of the target light beam;

[0050] The cutoff line data is acquired based on the correspondence between the light intensity values ​​of the plurality of pixel units and the coordinate positions of the pixel units, and the cutoff line shape, cutoff line position, cutoff line light intensity value and cutoff line thickness of the target light beam.

[0051] Optionally, the processing method further includes:

[0052] The projection module responds to the control instruction to adjust the cutoff line position of the target light beam along the first direction and / or the second direction.

[0053] A vehicle light module, comprising:

[0054] A basic module, wherein the basic module is used to emit a basic light beam;

[0055] A projection module, the projection module is used to emit a matching light beam;

[0056] The projection module also acquires matching data based on the basic data, emits the matching light beam based on the matching data, and superimposes the matching light beam with the basic light beam to form a target light beam, wherein the target light beam is an outgoing light beam of the headlight module;

[0057] The basic data includes light type data and light intensity distribution data of the basic light beam, the light type data represents the projection light type of the basic light beam, and the light intensity distribution data represents the light intensity value at each location of the projection light type of the basic light beam;

[0058] The projection light pattern of the matching light beam covers at least a partial area of ​​the projection light pattern of the basic light beam. The light intensity distribution of the projection light pattern of the target light beam based on the matching light beam gradually decreases from the center of the light pattern to the edge of the beam, and the center of the light pattern is the maximum light intensity position of the projection light pattern of the target light beam.

[0059] Compared with the related art, the technical solution of the present application has the following beneficial effects:

[0060] The processing method includes: obtaining basic data based on a basic beam, obtaining matching data based on the basic data, the matching data corresponds to the matching beam, the projection module emits a matching beam based on the matching data, and superimposes the matching beam with the basic beam to form a target beam. The projection light pattern of the matching beam covers at least a part of the projection light pattern of the basic beam, and based on the matching beam, the light intensity distribution of the projection light pattern of the target beam gradually decreases from the center of the beam to the edge of the beam. In other words, in the process of the projection light pattern of the target beam from the maximum light intensity position to the edge of the beam, the light intensity value does not change dramatically, that is, the light intensity value at each location changes smoothly from the maximum light intensity position to the edge of the beam, which improves the lighting uniformity of the headlight module and effectively improves the safety and comfort of vehicle driving.

[0061] In addition, the projection light pattern of the matching light beam covers at least a partial area of ​​the projection light pattern of the basic light beam, so that the projection light pattern of the target light beam can be diversified by adjusting the projection light pattern of the matching light beam, so that the projection light pattern of the target light beam can be flexibly adjusted based on the usage scenario to adapt to more application scenarios, and it is more practical. BRIEF DESCRIPTION OF THE DRAWINGS

[0062] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the related technologies, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying any creative work.

[0063] The structures, proportions, sizes, etc. illustrated in the drawings of this specification are only used to match the contents disclosed in the specification so as to facilitate understanding and reading by persons familiar with this technology. They are not used to limit the conditions under which this application can be implemented, and therefore have no substantive technical significance. Any structural modification, change in proportion or adjustment of size, without affecting the effects and purposes that can be achieved by this application, should still fall within the scope of the technical contents disclosed in this application.

[0064] Figure 1 A flowchart of a processing method provided for this application;

[0065] Figure 2 The light pattern diagram of the basic beam;

[0066] Figure 3 is a light pattern diagram of a matching light beam when the target light beam is a low beam;

[0067] Figure 4 is the light pattern diagram when the target light beam is a low beam;

[0068] Figure 5 is a light pattern diagram of a matching light beam when the target light beam is a high beam;

[0069] Figure 6 is the light pattern diagram when the target light beam is a high beam;

[0070] Figure 7 is a curve diagram of the first corresponding relationship;

[0071] Figure 8 is a curve diagram of the second corresponding relationship;

[0072] Fig. 9 is the light pattern of the matching light beam after the cut-off line position is moved downward;

[0073] Fig.10 This is the light pattern of the target light beam after the cut-off line position is moved downward. DETAILED DESCRIPTION

[0074] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the embodiments in the present application. Obviously, the described embodiments are only embodiments of one area of ​​the present application, not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application.

[0075] In order to make the above-mentioned objects, features and advantages of the present application more obvious and easy to understand, the present application is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0076] As described in the background technology section, the uniformity of vehicle lighting is very important for improving the safety and comfort of vehicle driving. Therefore, how to improve the uniformity of vehicle lighting has become a research focus of those skilled in the art.

[0077] Based on the above, the present application provides a processing method, which is applied to a vehicle lamp module, the vehicle lamp module comprising a basic module and a projection module, the basic module is used to emit a basic light beam, and the projection module is used to emit a matching light beam. Figure 1 As shown, Figure 1 A flowchart of a processing method provided for this application, the processing method comprising:

[0078] S1: Acquire basic data based on the basic light beam, the basic data including light type data and light intensity distribution data of the basic light beam. The light type data of the basic light beam represents the projection light type of the basic light beam, that is, the light type data of the basic light beam can represent the light type shape formed by the basic light beam on its projection surface, and the light intensity distribution data of the basic light beam represents the light intensity value at each location of the projection light type of the basic light beam, that is, the light intensity distribution data of the basic light beam can represent the light intensity distribution state of the projection light type of the basic light beam.

[0079] S2: Acquire matching data based on the basic data, the matching data corresponds to the matching light beam, and the matching data includes light type data and light intensity distribution data of the matching light beam, that is, the matching data can characterize the projection light type of the matching light beam and the light intensity distribution state of the projection light type of the matching light beam.

[0080] S3: The projection module emits a matching beam based on the matching data, and superimposes the matching beam with the basic beam to form a target beam, which is the output beam of the headlight module. That is, the headlight module realizes the lighting function based on the target beam.

[0081] It should be noted that the projection light pattern of the matching beam covers at least part of the projection light pattern of the basic beam, that is, the projection light pattern of the matching beam can cover part of the projection light pattern of the basic beam, and the projection light pattern of the target beam is formed by the superposition of the projection light pattern of the basic beam and the projection light pattern of the matching beam; or the projection light pattern of the matching beam can cover the entire area of ​​the projection light pattern of the basic beam, and the projection light pattern of the target beam is the same as the projection light pattern of the matching beam. In other words, the projection light pattern of the target beam can be diversified by adjusting the projection light pattern of the matching beam, that is, the projection light pattern of the target beam can be flexibly adjusted based on the usage scenario to be applicable to more application scenarios, and it is more practical.

[0082] In addition, for the target beam, based on the matching beam, the light intensity distribution of the projected light type of the target beam gradually decreases from the center of the beam to the edge of the beam. Among them, the center of the beam is the maximum light intensity position of the projected light type of the target beam, that is, based on the matching beam, the light intensity distribution of the projected light type of the target beam gradually decreases from the maximum light intensity position to the edge of the beam, that is, in the process from the maximum light intensity position to the edge of the beam in the projected light type of the target beam, the light intensity value does not change drastically, that is, the light intensity value at each location changes smoothly from the maximum light intensity position to the edge of the beam, thereby improving the lighting uniformity of the projected light type of the target beam, thereby improving the lighting uniformity of the headlight module, and effectively improving the safety and comfort of the whole vehicle driving.

[0083] In one embodiment of the present application, the basic module is a low beam module, and accordingly, the basic light beam is a basic low beam, that is, the projection light type of the basic low beam is a low beam light type. For step S3, forming a target light beam includes:

[0084] The projection module emits a matching beam based on the matching data, and superimposes the matching beam with the basic beam to form a low beam, which is the target beam. Figure 2~Figure 4 As shown, Figure 2 a in the middle is the grayscale light pattern of the basic beam. Figure 2 b is the contour line light pattern of the basic beam, Figure 3 In the figure a, it is the grayscale light pattern of the matching beam. Figure 3 b is the contour line light pattern of the matching beam. Figure 4 In the figure a is the grayscale light pattern of the target beam. Figure 4 In the figure b, the contour light pattern of the target light beam is shown.

[0085] Alternatively, forming the target beam comprises:

[0086] The projection module emits a matching beam based on the matching data, and superimposes the matching beam with the basic beam to form a high beam, which is the target beam. Figure 2 and Figure 5~Figure 6 As shown, Figure 5 In the figure a, it is the grayscale light pattern of the matching beam. Figure 5 b is the contour line light pattern of the matching beam. Figure 6 In the figure a is the grayscale light pattern of the target beam. Figure 6 In the figure b, the contour light pattern of the target light beam is shown.

[0087] From the above, it can be seen that the target beam can be a low beam or a high beam. It is also known that the target beam can achieve lighting uniformity based on the matching beam. Therefore, the headlight module can achieve both low beam lighting uniformity and high beam lighting uniformity, effectively improving the safety and comfort of vehicle driving.

[0088] In one embodiment of the present application, for step S2, obtaining matching data based on basic data includes:

[0089] Acquire target data based on the basic data, the target data corresponding to the target light beam, the target data including light type data and light intensity distribution data of the target light beam;

[0090] The part of the target data that belongs to the basic data is removed to obtain the matching data, that is, the light type data of the basic light beam can be subtracted from the light type data of the target data to obtain the light type data of the matching light beam, and the light intensity distribution data of the basic light beam can be subtracted from the light intensity distribution data of the target data to obtain the light intensity distribution data of the matching light beam, and then the matching data of the corresponding matching light beam can be obtained.

[0091] It should be noted that the target beam is formed by the superposition of the basic beam and the matching beam, that is, the target beam includes both the basic beam and the matching beam, and the target data corresponding to the target beam also includes the basic data and the matching data. After obtaining the target data, the basic data in the target data is removed to obtain the matching data.

[0092] Acquiring target data based on basic data includes:

[0093] The light pattern data of the target light beam is obtained based on the light pattern data of the basic light beam, that is, the projection light pattern of the target light beam is obtained based on the projection light pattern of the basic light beam. The projection light pattern of the target light beam can be a low beam pattern or a high beam pattern.

[0094] Based on the light intensity distribution data of the basic light beam and the light type data of the target light beam, the light intensity distribution data of the target light beam is obtained. Among them, based on the light intensity distribution data of the target light beam, the light intensity distribution of the projection light type of the target light beam is gradually reduced from the center of the light type to the edge of the light type, that is, based on the light intensity distribution data of the target light beam, the light intensity of the projection light type of the target light beam changes uniformly. It should be noted that the target light beam is formed by the superposition of the basic light beam and the matching light beam. In order to ensure the illumination uniformity of the projection light type of the target light beam, when obtaining the light intensity distribution data of the target light beam, both the projection light type of the target light beam and the light intensity distribution data of the basic light beam should be taken into account. Therefore, the light intensity distribution data of the target light beam can be obtained based on the light intensity distribution data of the basic light beam and the light type data of the target light beam. It should also be noted that the light type data of the target light beam can characterize the projection light type of the target light beam. When the projection light type of the target light beam is determined, the boundary of the light intensity change of the target light beam is also determined, so that the light intensity distribution data of the target light beam can be obtained, and then the light intensity distribution data of the target light beam can be obtained based on the light intensity distribution data of the basic light beam and the light type data of the target light beam.

[0095] As is known from the foregoing, the target beam is formed by the superposition of the base beam and the matching beam, and thus the light intensity distribution data of the target beam is formed by the superposition of the light intensity distribution data of the base beam and the light intensity distribution data of the matching beam. Furthermore, because the light intensity of the projected light pattern of the target beam changes uniformly based on the light intensity distribution data of the target beam, and the light intensity distribution data of the matching beam is obtained by subtracting the light intensity distribution data of the base beam from the light intensity distribution data of the target beam, the light intensity distribution of the projected light pattern of the target beam based on the matching beam can be gradually reduced from the center of the light pattern to the edge of the light pattern, that is, the light intensity of the projected light pattern of the target beam changes uniformly, thereby improving the lighting uniformity of the vehicle light module.

[0096] In one embodiment of the present application, the projection module includes a plurality of light-emitting units arranged in M ​​rows and N columns, M≥1, N≥1, for example, the projection module may include a plurality of light-emitting units arranged in 80 rows and 320 columns, and the light-emitting units may be light-emitting elements such as LEDs and Micro-LEDs. The projection module may control the light-emitting angle and light intensity value of each of the plurality of light-emitting units, that is, the projection module may control the light-emitting angle and light intensity value of each of the plurality of light-emitting units, wherein the light-emitting angle may characterize the irradiation range of the light beam emitted by the light-emitting unit. The projection light pattern of the matching light beam is formed by the light beams emitted by at least some of the light-emitting units in the plurality of light-emitting units. The projection light pattern of the target light beam includes a plurality of pixel units arranged in m rows and n columns, m≤M, n≤N, and the plurality of pixel units correspond one-to-one to at least some of the light-emitting units. That is to say, the position of each pixel unit in the projection light pattern corresponds to a corresponding light-emitting unit in the projection module, that is, the pixel unit corresponds one-to-one to the light-emitting unit, so that the light intensity data of the light-emitting unit can be converted based on the light intensity data of each pixel unit, which greatly simplifies the process of the projection module obtaining matching data. It should be noted that the light intensity of the part where the basic light beam overlaps with the target light beam in the projection light pattern of the target light beam is the sum of the light intensity of the basic light beam and the light intensity of the matching light beam, so that not all of the light-emitting units corresponding to the pixel units in the projection module are in a light-emitting state, which is related to the actual projection light pattern and light intensity distribution of the target light beam.

[0097] Based on the above, based on the light intensity distribution data of the base light beam and the light type data of the target light beam, obtaining the light intensity distribution data of the target light beam includes:

[0098] Based on the light intensity distribution data of the basic light beam and the light type data of the target light beam, the maximum light intensity position of the projection light type of the target light beam and the maximum light intensity value of the target light beam are determined. There is only one maximum light intensity position in the projection light type of the target light beam. Based on the light intensity distribution data of the basic light beam and the light type data of the target light beam, a maximum light intensity position can be defined in the projection light type of the target light beam, and the light intensity value of the maximum light intensity position can be set.

[0099] A coordinate system is established based on the projection light pattern of the target light beam, the coordinate system takes the maximum light intensity position of the projection light pattern of the target light beam as the coordinate origin, and the abscissa of the coordinate system is parallel to the first direction, and the ordinate is parallel to the second direction. The first direction is parallel to the row direction of the plurality of light-emitting units, and the second direction is parallel to the column direction of the plurality of light-emitting units, that is, the first direction is parallel to the row direction of the matrix formed by the plurality of light-emitting units, and the second direction is parallel to the column direction of the matrix formed by the plurality of light-emitting units.

[0100] Based on the correspondence between the light intensity values ​​of the plurality of pixel units and the coordinate positions of the pixel units, the light intensity value of each pixel unit in the plurality of pixel units is obtained to obtain the light intensity distribution data of the target light beam.

[0101] In this application, the corresponding relationship between the light intensity values ​​of multiple pixel units and the coordinate positions is:

[0102] , z is the light intensity value of the pixel unit, x is the coordinate position of the pixel unit, and A, B, C, and D are coefficients.

[0103] Based on the above, it can be known that the correspondence between the light intensity values ​​of multiple pixel units and the coordinate positions satisfies the cubic spline function equation, which means that the correspondence between the light intensity values ​​of multiple pixel units and the coordinate positions satisfies the requirement of derivative continuity, which means that the change of the light intensity values ​​of multiple pixel units is continuous, that is, the light intensity changes continuously in the projection light pattern of the target light beam, and there is no position where the light intensity value suddenly changes. Since there is only one maximum light intensity position in the projection light pattern of the target light beam, and the derivative of the maximum light intensity value position, that is, the slope, is 0, the light intensity distribution of the projection light pattern of the target light beam can be achieved as gradually decreasing from the center of the light pattern to the edge of the light beam, thereby achieving the illumination uniformity of the target light beam and ensuring the lighting effect of the car light module.

[0104] It should be noted that the horizontal coordinate of the above-mentioned coordinate system is parallel to the row direction of the multiple light-emitting units, and the vertical coordinate is parallel to the column direction of the multiple light-emitting units, so that based on the coordinate position of each pixel unit in the coordinate system, the position of the light-emitting unit corresponding to the pixel unit in the projection module can be known, which is convenient for the subsequent acquisition of the light intensity distribution data of the matching light beam.

[0105] In one embodiment of the present application, for step S3, the projection module emitting a matching light beam based on the matching data includes:

[0106] Based on the light intensity value of each pixel unit in the multiple pixel units and the light intensity distribution data of the basic light beam, the light intensity value of at least part of the light emitting units is obtained, that is, the light intensity distribution data of the matching light beam is obtained. It should be noted that it is known that the target light beam is formed by the superposition of the basic light beam and the matching light beam, and the light intensity distribution data of the target light beam minus the light intensity distribution data of the basic light beam is the light intensity distribution data of the matching light beam, so based on the light intensity value of each pixel unit in the multiple pixel units and the light intensity distribution data of the basic light beam, the light intensity value of at least part of the light emitting units is obtained, and the light intensity distribution data of the matching light beam can be obtained.

[0107] The projection module emits a matching light beam based on the light intensity value of at least part of the above-mentioned light-emitting units and the projection light pattern of the target light beam, so that based on the matching light beam, the light intensity distribution of the projection light pattern of the target light beam can be gradually reduced from the center of the light pattern to the edge of the beam, thereby achieving a uniform lighting effect of the target light beam.

[0108] In one embodiment of the present application, based on the relationship between the light intensity values ​​of the plurality of pixel units and the coordinate positions of the pixel units, obtaining the light intensity value of each pixel unit in the plurality of pixel units includes:

[0109] A first corresponding relationship is obtained, where the first corresponding relationship is a corresponding relationship between the light intensity values ​​of the row pixel units of the plurality of pixel units and the coordinate positions of the pixel units, wherein the row pixel units may be any row of the m rows of pixel units in the plurality of pixel units. Figure 7 As shown, Figure 7 is the relationship curve of the first corresponding relationship, and the first corresponding relationship is:

[0110] , is the horizontal coordinate position of the pixel unit, that is It should be noted that the cubic spline function equation corresponding to the first correspondence between the adjacent rows of pixel units of the above-mentioned plurality of pixel units can be the same equation or can be in different directions, that is, the coefficients , , , They can be the same or different, depending on the circumstances.

[0111] Based on the first corresponding relationship and the coordinate positions of the pixel units, light intensity values ​​of pixel units in each row of the plurality of pixel units are obtained.

[0112] From the above, it can be seen that in the processing method of the present application, for a plurality of pixel units arranged in m rows and n columns, the light intensity values ​​of the pixel units in each row of the m rows of pixel units and the coordinate positions of the pixel units all satisfy a first corresponding relationship. In the process of obtaining the light intensity values ​​of each pixel unit in the plurality of pixel units, the first corresponding relationship satisfied by the light intensity values ​​of the pixel units in each row of the m rows of pixel units and the coordinate positions of the pixel units can be obtained, and based on the first corresponding relationship of each row of pixel units, the light intensity values ​​of the pixel units in each row are obtained row by row, thereby obtaining the light intensity values ​​of each pixel unit in the plurality of pixel units.

[0113] In another embodiment of the present application, based on the relationship between the light intensity values ​​of the plurality of pixel units and the coordinate positions of the pixel units, obtaining the light intensity value of each pixel unit in the plurality of pixel units includes:

[0114] A second corresponding relationship is obtained, where the second corresponding relationship is a corresponding relationship between the light intensity value of a column pixel unit of the plurality of pixel units and the coordinate position of the pixel unit. The column pixel unit is any column of n columns of the plurality of pixel units, that is, the column pixel unit is any column of n columns of the plurality of pixel units in m rows and n columns. Figure 8 As shown, Figure 8 is the relationship curve of the second corresponding relationship, and the second corresponding relationship is:

[0115] , is the ordinate position of the pixel unit, that is It is the vertical coordinate value of the coordinate position of the pixel unit.

[0116] Based on the second corresponding relationship and the coordinate position of the pixel unit, the light intensity value of each pixel unit in the multiple pixel units is obtained. It should be noted that the principle and calculation process of obtaining the light intensity value of each pixel unit based on the second corresponding relationship of any column of pixel units in the multiple pixel units are the same as those of obtaining the light intensity value of each pixel unit based on the first corresponding relationship, and will not be repeated here.

[0117] In one embodiment of the present application, obtaining the first corresponding relationship includes:

[0118] Obtain a first correspondence between the light intensity values ​​of each row of pixel units in m rows of pixel units of multiple pixel units and the coordinate position of the pixel unit, that is, obtain the first correspondence between the light intensity values ​​of each row of pixel units in the 1st row to the mth row of m rows of pixel units of multiple pixel units and the coordinate position of the pixel unit.

[0119] Wherein, obtaining the first corresponding relationship between the light intensity value of the pixel unit in the i-th row from the 1st row to the m-th row and the coordinate position of the pixel unit includes:

[0120] The pixel units in the i-th row are partitioned. After the partitioning, the pixel units in the i-th row include a first part and a second part respectively located on both sides of the ordinate axis of the coordinate system, that is, the pixel units in the i-th row are partitioned using the ordinate axis of the coordinate system, that is, any row of the m-row pixel units is partitioned using the ordinate axis of the coordinate system, and any row of pixel units includes the first part and the second part located on both sides of the ordinate axis. Among them, the first part includes the pixel units in the i-th row of pixel units located on the ordinate axis, and the second part also includes the pixel units in the i-th row of pixel units located on the ordinate axis.

[0121] At least three pixel units are selected as the first control point in the first part, and the light intensity value of the first control point is set; at least three pixel units are selected as the second control point in the second part, and the light intensity value of the second control point is set. It should be noted that the three pixel units as the first control point include a first endpoint pixel unit, a second endpoint pixel unit and a first intermediate pixel unit, the first endpoint pixel unit is a pixel unit located on the vertical axis, the second endpoint pixel unit is a pixel unit farthest from the vertical axis in the first part, and the first intermediate pixel unit is any pixel unit in the first part except the first endpoint pixel unit and the second endpoint pixel unit. Similarly, the three pixel units as the second control point include a first endpoint pixel unit, a third endpoint pixel unit and a second intermediate pixel unit, the third endpoint pixel unit is a pixel unit farthest from the vertical axis in the second part, and the second intermediate pixel unit is any pixel unit in the second part except the first endpoint pixel unit and the third endpoint pixel unit.

[0122] Based on the slope of the first control point and the set light intensity value of the first control point, a first corresponding relationship between the light intensity value of the pixel unit of the first part and the coordinate position of the pixel unit is obtained.

[0123] Based on the slope of the second control point and the set light intensity value of the second control point, a second corresponding relationship between the light intensity value of the pixel unit of the second part and the coordinate position of the pixel unit is obtained.

[0124] Among them, the light intensity value of the first endpoint pixel unit is the largest, and the slope is 0, the slope of the second endpoint pixel unit is the product of the slope of the straight line between it and the first intermediate pixel unit and the edge slope ratio, the slope of the first intermediate pixel unit is the slope of the straight line between the first endpoint pixel unit and the second endpoint pixel unit, the slope of the third endpoint pixel unit is the product of the slope of the straight line between it and the second intermediate pixel unit and the edge slope ratio, and the slope of the second intermediate pixel unit is the slope of the straight line between the first endpoint pixel unit and the third endpoint pixel unit. It should be noted that the edge slope ratio is a set value, which can usually be set to 1, and for example, the slope of the first intermediate pixel unit is recorded as , the light intensity value of the second endpoint pixel unit is recorded as , the horizontal axis value is recorded as , the light intensity value of the first endpoint pixel unit is recorded as , the horizontal axis value is recorded as , .

[0125] Based on the above, for the first part, we can also get the following equation:

[0126]

[0127]

[0128]

[0129]

[0130] In the above equation, for example Figure 7 As shown, Figure 7 1 represents the first endpoint pixel unit, 2 represents the second endpoint pixel unit, 3 represents the first intermediate pixel unit, can be the horizontal coordinate value of the second endpoint pixel unit, can be the horizontal coordinate value of the first intermediate pixel unit, can be the light intensity value of the second endpoint pixel unit, can be the light intensity value of the first intermediate pixel unit, can be the slope of the second endpoint pixel unit, The coefficient of the first corresponding relationship corresponding to the first part can be obtained by solving the above equation based on the light intensity value and slope of the control point: , , , , the first corresponding relationship corresponding to the first part is obtained, and the light intensity value of each pixel unit in the first part of the i-th row can be obtained based on the above first corresponding relationship.

[0131] For the second part, the following directions can be obtained:

[0132]

[0133]

[0134]

[0135]

[0136] In the above equation, for example Figure 7As shown, 4 is the third endpoint pixel unit, 5 is the second middle pixel unit, can be the horizontal coordinate value of the third endpoint pixel unit, can be the horizontal coordinate value of the first intermediate pixel unit, can be the light intensity value of the third endpoint pixel unit, can be the light intensity value of the second intermediate pixel unit, can be the slope of the third endpoint pixel unit, The slope of the second intermediate pixel unit can be obtained by solving the above equation: , , , , the first corresponding relationship corresponding to the second part is obtained, and the light intensity value of each pixel unit in the second part of the i-th row can be obtained based on the obtained first corresponding relationship.

[0137] From the above, it can be seen that when obtaining the correspondence between the light intensity value of the pixel unit and the coordinate position, the processing method of the present application can freely set the control point and define the light intensity value of the control point to obtain the correspondence between the light intensity value of the pixel unit and the coordinate position. This makes the processing method have a high degree of freedom and strong controllability while ensuring the illumination uniformity of the target light beam, and has broad application prospects.

[0138] It should be noted that, in the above-mentioned embodiments, the first part and the second part are taken as a whole, and the first corresponding relations corresponding to each other are obtained. In other embodiments of the present application, when obtaining the first corresponding relation of the first part, the first part can also be divided into multiple parts, and the first corresponding relations of each part are calculated respectively, that is, for the first part, the first corresponding relations of each part can be calculated respectively by piecewise interpolation. However, it should be noted that for the two adjacent parts in the first part, the pixel unit at the junction is both the control point of the previous part and the control point of the latter part, so as to ensure the continuity of the derivative function of the first corresponding relation corresponding to the first part. Similarly, for the second part, when obtaining the second corresponding relation of the second part, the first part can also be divided into multiple parts, and the first corresponding relations of each part can be calculated respectively.

[0139] It should also be noted that when a control point is selected, the selected control point is an area of ​​the target beam that contains the basic beam, and the light intensity of the basic beam at this location needs to be considered to set the light intensity of the control point. For example, the control point corresponding to the edge of the light pattern of the basic beam, the light intensity value of the control point can be the light intensity value at the corresponding control point in the basic beam, and the slope can also be obtained from the light pattern at the corresponding control point in the basic beam, that is, the slope can be obtained from the light intensity change rate at the corresponding control point in the basic beam.

[0140] The process of obtaining the first corresponding relationship has been described in detail in the above embodiment, and the process of obtaining the second corresponding relationship is the same as described above, which will not be repeated here. It should be noted that, for the processing method described in the present application, in one embodiment of the present application, the first corresponding relationship of some rows of pixel units in the m rows of pixel units of multiple pixel units can also be obtained, and control points are selected, and the selected control points are located in the above-mentioned partial rows of pixel units, and the control point intensity is obtained based on the first corresponding relationship of the partial rows of pixel units, and then the second corresponding relationship of each column of pixel units in the n columns of pixel units is obtained based on the control point intensity and the slope. In another embodiment of the present application, the second corresponding relationship of some columns of pixel units in the n columns of pixel units of multiple pixel units can also be obtained, and the control points are selected, and the selected control points are located in the above-mentioned partial columns of pixel units, and the control point intensity is obtained based on the second corresponding relationship of the partial columns of pixel units, and then the first corresponding relationship of each row of pixel units in the m rows of pixel units is obtained based on the control point intensity and the slope.

[0141] In one embodiment of the present application, the low beam is a target beam, and the processing method further includes:

[0142] The cutoff line data of the target light beam is acquired, wherein the cutoff line data of the target light beam includes light intensity distribution data within a cutoff line thickness range of the target light beam.

[0143] Wherein, obtaining the cutoff line data of the target light beam includes:

[0144] The cutoff line shape and the cutoff line position of the target light beam are obtained based on the light type data of the target light beam. It should be noted that the cutoff line shape can be obtained based on the coordinate position of the pixel unit on the cutoff line and the piecewise straight line equation.

[0145] Set the cutoff intensity and cutoff thickness of the target light beam. It should be noted that the cutoff intensity value is the intensity value of the pixel unit where the cutoff position is located, and the cutoff thickness is the distance between the cutoff position in the projection light pattern of the target light beam and the position where the light intensity transitions to 0 starting from the cutoff position, that is, the cutoff thickness is the distance corresponding to the cutoff intensity dropping to 0 in the projection light pattern of the target light beam.

[0146] Based on the correspondence between the light intensity values ​​of multiple pixel units and the coordinate positions of the pixel units, as well as the cutoff shape, cutoff position, cutoff light intensity value and cutoff thickness of the target light beam, the cutoff data is obtained to make the light intensity transition in the cutoff thickness range of the target light beam uniform, thereby ensuring the illumination uniformity of the target light beam.

[0147] It should be noted that the above cutoff line data can also be obtained through the half-period cosine function equation, as well as the cutoff line shape, cutoff line position, cutoff line intensity value and cutoff line thickness of the target light beam. This application does not limit this, and it depends on the specific situation.

[0148] In one embodiment of the present application, the processing method further includes:

[0149] The projection module responds to the control instruction and adjusts the cutoff line position of the target light beam along the first direction and / or the second direction, that is, the projection module responds to the control instruction and adjusts the cutoff line position of the target light beam along the first direction, or adjusts the cutoff line position of the target light beam along the second direction, or adjusts the cutoff line position of the target light beam along the first direction and the second direction. It should be noted that when the projection module responds to the control instruction and adjusts the cutoff line position of the target light beam, the adjustment range will not be infinite, but within a range at one end, for example Fig. 9 and Fig.10 As shown, Fig. 9 In the figure a, it is the grayscale light pattern of the matching beam. Fig. 9 b is the contour line light pattern of the matching beam. Fig.10 In the figure a is the grayscale light pattern of the target beam. Fig.10 In b, the contour light pattern of the target light beam. In one embodiment of the present application, the lower limit of adjusting the cutoff position of the target light beam is -3°, that is, when adjusting the cutoff position, it can be adjusted downward to -3° at most, and cannot be further adjusted downward to a position such as -4°.

[0150] From the above, it can be seen that the projection module can respond to the control command and adjust the cutoff position of the target light beam, that is, to achieve automatic adjustment of the cutoff position, that is, to achieve the automatic headlamp leveling system (ALS). For example, in the process of vehicle formation, the cutoff position is adjusted based on the body posture angle, and the illumination uniformity of the target light beam is always maintained, which greatly improves the safety and comfort of vehicle driving. Compared with traditional car lights, the motor leveling system of the car headlights is omitted, and digital leveling is achieved, which improves the automation capability of the car headlights, is more sensitive, and reduces costs.

[0151] It can be seen from the above that based on the above processing method, uniform and controllable high beam lighting and low beam lighting can be achieved, and on the basis of uniform lighting, the ALS function can also be achieved, which has broad application prospects.

[0152] The present application also provides a vehicle light module, which includes:

[0153] Basic module: The basic module is used to emit basic beams.

[0154] Projection module, the projection module is used to emit a matching light beam.

[0155] The projection module also obtains matching data based on the basic data, and emits a matching light beam based on the matching data, and superimposes the matching light beam with the basic light beam to form a target light beam, which is the outgoing light beam of the headlight module.

[0156] The basic data includes light pattern data and light intensity distribution data of the basic light beam, the light pattern data represents the projection light pattern of the basic light beam, and the light intensity distribution data represents the light intensity value at each location of the projection light pattern of the basic light beam.

[0157] The projection light pattern of the matching beam covers at least a partial area of ​​the projection light pattern of the basic beam. The light intensity distribution of the projection light pattern of the target beam based on the matching beam gradually decreases from the center of the light pattern to the edge of the beam, and the center of the light pattern is the maximum light intensity position of the projection light pattern of the target beam.

[0158] From the above, it can be seen that the projection light pattern of the matching beam covers at least part of the projection light pattern of the basic beam, that is, the projection light pattern of the matching beam can cover part of the projection light pattern of the basic beam, and the projection light pattern of the target beam is formed by the superposition of the projection light pattern of the basic beam and the projection light pattern of the matching beam; or the projection light pattern of the matching beam can cover the entire area of ​​the projection light pattern of the basic beam, and the projection light pattern of the target beam is the same as the projection light pattern of the matching beam. In other words, the projection light pattern of the target beam can be diversified by adjusting the projection light pattern of the matching beam, that is, the projection light pattern of the target beam can be flexibly adjusted based on the usage scenario to be applicable to more application scenarios, and it is more practical.

[0159] In addition, for the target beam, based on the matching beam, the light intensity distribution of the projected light type of the target beam gradually decreases from the center of the beam to the edge of the beam. Among them, the center of the beam is the maximum light intensity position of the projected light type of the target beam, that is, based on the matching beam, the light intensity distribution of the projected light type of the target beam gradually decreases from the maximum light intensity position to the edge of the beam, that is, in the process from the maximum light intensity position to the edge of the beam in the projected light type of the target beam, the light intensity value does not change drastically, that is, the light intensity value at each location changes smoothly from the maximum light intensity position to the edge of the beam, thereby improving the lighting uniformity of the projected light type of the target beam, thereby improving the lighting uniformity of the headlight module, and effectively improving the safety and comfort of the whole vehicle driving.

[0160] It should be noted that the above-mentioned projection module can be a high-pixel projection module, which can include a plurality of light-emitting units arranged in 80 rows and 320 columns, and can also set and record the light-emitting angle and light intensity value of each light-emitting unit, for example, define a rectangular array of 80 rows and 320 columns, the rectangular array is used to set and record the light intensity of each light-emitting unit, define a horizontal coordinate array and a vertical coordinate array, the horizontal coordinate array is used to set and record the horizontal light-emitting angle of each light-emitting unit, and the vertical coordinate array is used to set and record the vertical light-emitting angle of each light-emitting unit. It should also be noted that the above-mentioned projection module can drive its light-emitting unit based on the matching data to output a matching light beam.

[0161] In this specification, each embodiment is described in a progressive, parallel, or progressive and parallel manner. Each embodiment focuses on the differences from other embodiments, and the same or similar areas between the embodiments can be referred to each other. For the device disclosed in the embodiment, since it corresponds to the method disclosed in the embodiment, the description is relatively simple, and the relevant parts can be referred to the method area description.

[0162] It should be noted that in the description of the present application, it should be understood that the terms "upper", "lower", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, which are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application. When a component is considered to be "connected" to another component, it may be directly connected to the other component or there may be a centrally arranged component at the same time.

[0163] It should also be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "comprises", "comprising" or any other variants thereof are intended to cover non-exclusive inclusion, so that an article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such article or device. In the absence of further restrictions, the elements defined by the sentence "comprising a ..." do not exclude the existence of other identical elements in the article or device including the above elements.

[0164] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present application. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A processing method, characterized in that: Applied to a vehicle lamp module, the vehicle lamp module comprises a basic module and a projection module, the basic module is used to emit a basic light beam, and the projection module is used to emit a matching light beam; the processing method comprises: Acquire basic data based on the basic light beam, the basic data including light pattern data and light intensity distribution data of the basic light beam, the light pattern data characterizes the projection light pattern of the basic light beam, and the light intensity distribution data characterizes the light intensity value at each location of the projection light pattern of the basic light beam; Acquire matching data based on the basic data, the matching data corresponding to the matching light beam, the matching data including light type data and light intensity distribution data of the matching light beam; The projection module emits the matching light beam based on the matching data, and superimposes the matching light beam with the basic light beam to form a target light beam, wherein the target light beam is an outgoing light beam of the headlight module; Among them, the projection light pattern of the matching light beam covers at least a partial area of ​​the projection light pattern of the basic light beam. Based on the matching light beam, the light intensity distribution of the projection light pattern of the target light beam gradually decreases from the center of the light pattern to the edge of the beam, and the center of the light pattern is the maximum light intensity position of the projection light pattern of the target light beam.

2. The processing method according to claim 1, characterized in that: The basic module is a low beam module, and the basic light beam is a basic low beam; forming a target light beam includes: The projection module emits the matching light beam based on the matching data, and superimposes the matching light beam with the basic light beam to form a low-beam light beam, where the low-beam light beam is the target light beam; or, The projection module emits the matching light beam based on the matching data, and superimposes the matching light beam with the basic light beam to form a high-beam light beam, and the high-beam light beam is the target light beam.

3. The processing method according to claim 2, characterized in that: Acquiring matching data based on the basic data includes: Acquire target data based on the basic data, the target data corresponding to the target light beam, the target data including light type data and light intensity distribution data of the target light beam; Removing the portion of the target data belonging to the basic data to obtain the matching data; Wherein, acquiring target data based on the basic data includes: Acquire the light type data of the target light beam based on the light type data of the base light beam; Based on the light intensity distribution data of the base light beam and the light type data of the target light beam, the light intensity distribution data of the target light beam is obtained; wherein, based on the light intensity distribution data of the target light beam, the light intensity distribution of the projection light type of the target light beam gradually decreases from the center of the light type to the edge of the light type.

4. The processing method according to claim 3, characterized in that: The projection module includes a plurality of light-emitting units arranged in M ​​rows and N columns, M≥1, N≥1, the projection module controls the light-emitting angle and light intensity value of each of the plurality of light-emitting units, and the projection light pattern of the matching light beam is formed by the light beams emitted by at least some of the plurality of light-emitting units; wherein the projection light pattern of the target light beam includes a plurality of pixel units arranged in m rows and n columns, 1≤m≤M, 1≤n≤N, and the plurality of pixel units correspond one-to-one to at least some of the light-emitting units; based on the light intensity distribution data of the basic light beam and the light pattern data of the target light beam, obtaining the light intensity distribution data of the target light beam includes: Based on the light intensity distribution data of the base light beam and the light pattern data of the target light beam, determine the maximum light intensity position of the projection light pattern of the target light beam and the maximum light intensity value of the target light beam; wherein the projection light pattern of the target light beam has only one maximum light intensity position; A coordinate system is established based on the projection light pattern of the target light beam, wherein the coordinate system takes the maximum light intensity position of the projection light pattern of the target light beam as the coordinate origin, and the abscissa of the coordinate system is parallel to a first direction, and the ordinate is parallel to a second direction, the first direction is parallel to the row direction of the plurality of light-emitting units, and the second direction is parallel to the column direction of the plurality of light-emitting units; Based on the correspondence between the light intensity values ​​of the plurality of pixel units and the coordinate positions of the pixel units, the light intensity value of each pixel unit in the plurality of pixel units is obtained to obtain the light intensity distribution data of the target light beam; The corresponding relationship between the light intensity values ​​and the coordinate positions of the plurality of pixel units is: , z is the light intensity value of the pixel unit, x is the coordinate position of the pixel unit, and A, B, C, and D are coefficients.

5. The processing method according to claim 4, characterized in that: The projection module emitting the matching light beam based on the matching data includes: Based on the light intensity value of each pixel unit in the plurality of pixel units and the light intensity distribution data of the basic light beam, obtaining the light intensity value of at least part of the light emitting units; The projection module emits the matching light beam based on the light intensity value of at least part of the light-emitting units and the projection light type of the target light beam.

6. The processing method according to claim 4, characterized in that: Based on the relationship between the light intensity values ​​of the plurality of pixel units and the coordinate positions of the pixel units, obtaining the light intensity value of each pixel unit in the plurality of pixel units includes: Obtain a first corresponding relationship, where the first corresponding relationship is a corresponding relationship between the light intensity values ​​of the row pixel units of the multiple pixel units and the coordinate positions of the pixel units, and the row pixel units are any row of m rows of pixel units in the multiple pixel units; wherein the first corresponding relationship is: , is the horizontal coordinate position of the pixel unit; Based on the first corresponding relationship and the coordinate position of the pixel unit, obtaining the light intensity value of each row of pixel units of the plurality of pixel units; or, A second corresponding relationship is obtained, where the second corresponding relationship is a corresponding relationship between the light intensity values ​​of the column pixel units of the multiple pixel units and the coordinate positions of the pixel units, and the column pixel units are any column of the n columns of pixel units in the multiple pixel units; the second corresponding relationship is: , is the ordinate position of the pixel unit; Based on the second corresponding relationship and the coordinate position of the pixel unit, the light intensity value of each column of the plurality of pixel units is acquired.

7. The processing method according to claim 6, characterized in that: Obtaining the first corresponding relationship includes: Obtaining a first correspondence between the light intensity value of each pixel unit in the 1st row to the mth row and the coordinate position of the pixel unit; Wherein, obtaining the first corresponding relationship between the light intensity value of the pixel unit in the i-th row from the 1st row to the m-th row and the coordinate position of the pixel unit includes: Partitioning the i-th row of pixel units, the i-th row of pixel units comprising a first part and a second part respectively located on both sides of a ordinate axis of the coordinate system, the first part comprising pixel units in the i-th row of pixel units located on the ordinate axis, and the second part also comprising pixel units in the i-th row of pixel units located on the ordinate axis; Select three pixel units in the first part as first control points, and set the light intensity value of the first control points; select three pixel units in the second part as second control points, and set the light intensity value of the second control points; the three pixel units as the first control points include a first endpoint pixel unit, a second endpoint pixel unit and a first intermediate pixel unit, the first endpoint pixel unit is a pixel unit located on the vertical axis, the second endpoint pixel unit is a pixel unit farthest from the vertical axis in the first part, and the first intermediate pixel unit is any pixel unit in the first part except the first endpoint pixel unit and the second endpoint pixel unit; the at least three pixel units as the second control points include the first endpoint pixel unit, a third endpoint pixel unit and a second intermediate pixel unit, the third endpoint pixel unit is a pixel unit farthest from the vertical axis in the second part, and the second intermediate pixel unit is any pixel unit in the second part except the first endpoint pixel unit and the third endpoint pixel unit; Based on the slope of the first control point and the set light intensity value of the first control point, obtaining a first corresponding relationship between the light intensity value of the pixel unit of the first part and the coordinate position of the pixel unit; Based on the slope of the second control point and the set light intensity value of the second control point, obtaining a first corresponding relationship between the light intensity value of the pixel unit of the second part and the coordinate position of the pixel unit; Among them, the light intensity value of the first endpoint pixel unit is the largest and the slope is 0, the slope of the second endpoint pixel unit is the product of the slope of the straight line between it and the first intermediate pixel unit and the edge slope ratio, and the slope of the first intermediate pixel unit is the slope of the straight line between the first endpoint pixel unit and the second endpoint pixel unit; the slope of the third endpoint pixel unit is the product of the slope of the straight line between it and the second intermediate pixel unit and the edge slope ratio, and the slope of the second intermediate pixel unit is the slope of the straight line between the first endpoint pixel unit and the third endpoint pixel unit, and the edge slope ratio is a set value.

8. The processing method according to claim 4, characterized in that: The low beam is the target beam, and the processing method further includes: Acquiring cutoff line data of the target light beam, wherein the cutoff line data of the target light beam includes light intensity distribution data within a cutoff line thickness range of the target light beam; Wherein, obtaining the cutoff line data of the target light beam comprises: Acquire a cutoff line shape and a cutoff line position of the target light beam based on the light type data of the target light beam; Setting the cut-off line intensity value and the cut-off line thickness of the target light beam; The cutoff line data is acquired based on the correspondence between the light intensity values ​​of the plurality of pixel units and the coordinate positions of the pixel units, and the cutoff line shape, cutoff line position, cutoff line light intensity value and cutoff line thickness of the target light beam.

9. The processing method according to claim 8, characterized in that: The treatment method also includes: The projection module responds to the control instruction to adjust the cutoff line position of the target light beam along the first direction and / or the second direction.

10. A vehicle light module, characterized in that: include: A basic module, wherein the basic module is used to emit a basic light beam; A projection module, the projection module is used to emit a matching light beam; The projection module also acquires matching data based on the basic data, emits the matching light beam based on the matching data, and superimposes the matching light beam with the basic light beam to form a target light beam, wherein the target light beam is an outgoing light beam of the headlight module; The basic data includes light type data and light intensity distribution data of the basic light beam, the light type data represents the projection light type of the basic light beam, and the light intensity distribution data represents the light intensity value at each location of the projection light type of the basic light beam; The projection light pattern of the matching light beam covers at least a partial area of ​​the projection light pattern of the basic light beam. The light intensity distribution of the projection light pattern of the target light beam based on the matching light beam gradually decreases from the center of the light pattern to the edge of the beam, and the center of the light pattern is the maximum light intensity position of the projection light pattern of the target light beam.

Images