A sun visor assembly and a control method and control device thereof, vehicle

Abstract

The application provides a sun visor assembly and a control method and device thereof and a vehicle, relates to the technical field of sun visors, and can solve the problem of visual dazzle of human eyes caused by direct sunlight during driving and avoid the problems of darkening of the outside scene and poor field of view. The image acquisition module in the sun visor assembly is used for acquiring image information of a transparent panel and human eyes; the control module is used for determining target position information of a fixation point of the human eyes on the transparent panel according to the image information and determining a target control area on the transparent panel corresponding to the target position information; the detection module is used for detecting corresponding optical information when light passes through the target control area and is incident on the human eyes; and the control module is further used for adjusting the light transmission degree of the transparent panel in the target control area according to the optical information so that the optical information is within a preset range. The sun visor assembly provided by the application is used for shading.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of light shielding technology, in particular to a light shielding plate assembly and a control method, a control device and a vehicle thereof. BACKGROUND

[0002] During driving, the problem of visual dazzle of human eyes caused by direct sunlight is often encountered. In order to solve this problem, the commonly used methods at present include wearing sunshades. Although this method can prevent the problem of dazzle, it also causes the problem of darkening of the outside scene and poor vision in the absence of sunlight. SUMMARY

[0003] The present application aims to provide a light shielding plate assembly and a control method, a control device and a vehicle thereof, which can solve the problem of visual dazzle of human eyes caused by direct sunlight during driving, and avoid the problems of darkening of the outside scene and poor vision.

[0004] In order to achieve the above-mentioned purpose, the present application provides the following technical solutions:

[0005] The first aspect of the present application provides a light shielding plate assembly, comprising: a transparent panel, an image acquisition module, a detection module and a control module; wherein,

[0006] The transparent panel is configured to shield light rays passing through the transparent panel and directed towards human eyes, and the light transmittance of the transparent panel is adjustable;

[0007] The image acquisition module is located on the side of the transparent panel away from the human eyes, and is used to acquire image information of the transparent panel and the human eyes;

[0008] The control module is used to determine target position information of a fixation point of the human eyes on the transparent panel according to the image information, and determine a target control area on the transparent panel corresponding to the target position information;

[0009] The detection module is used to detect optical information corresponding to the light rays passing through the target control area and directed towards the human eyes;

[0010] The control module is further used to adjust the light transmittance of the transparent panel in the target control area according to the optical information, so that the optical information is within a preset range.

[0011] Optionally, the image acquisition module is specifically used for:

[0012] acquiring a first image including only the transparent panel, and a second image including the transparent panel and the human eyes;

[0013] The control module comprises a control unit, which is configured to: process the first image to obtain a set of numerical values corresponding to each pixel in the first image, form a first numerical matrix corresponding to the first image, and establish a correspondence table between the first numerical matrix and coordinate position information of the transparent panel;

[0014] process the second image to obtain a set of numerical values corresponding to each pixel in the second image, form a second numerical matrix corresponding to the second image;

[0015] compare the first numerical matrix and the second numerical matrix, determine a target numerical value different from the second numerical matrix in the first numerical matrix, and determine the position information corresponding to the target numerical value in the correspondence table as the target position information;

[0016] The control unit is further configured to:

[0017] determine an area value of a control region to be divided according to a distance between the human eye and the transparent panel and a field of view range of the human eye;

[0018] divide the transparent panel into a plurality of control regions according to the area value;

[0019] determine a control region corresponding to the target position information in the plurality of control regions as a target control region.

[0020] Optionally, the transparent panel is divided into a plurality of control regions; the detection module comprises a plurality of light sensing units corresponding to the plurality of control regions one by one;

[0021] The target light sensing unit in the target control region is configured to detect light intensity information formed by light passing through the target control region and shooting towards the human eye;

[0022] The control module comprises a control unit, which is configured to: obtain the light intensity information, compare the light intensity information with a preset light intensity threshold, and adjust a light transmission degree of the target control region when the light intensity information is greater than the light intensity threshold, so that the light intensity information of the target control region is less than the light intensity threshold.

[0023] Optionally, the image acquisition module is multiplexed as the detection module; the control module comprises a control unit; and the image acquisition module is specifically configured to:

[0024] acquire light brightness information of the human eye when light passing through the target control region shoots towards the human eye, and transmit the light brightness information to the control unit;

[0025] The control unit is configured to compare the light brightness information with a preset light brightness threshold, and adjust the light transmission degree of the target control area when the light brightness information is greater than the light brightness threshold, so that the light brightness information at the human eye is less than the light brightness threshold.

[0026] Optionally, the transparent panel is divided into a plurality of control areas, and the transparent panel comprises first electrodes and second electrodes located in each of the control areas; the control module comprises a control unit and a plurality of processing units connected to the control unit respectively, the processing units corresponding to the control areas one by one; the processing units are coupled to the first electrodes and the second electrodes in the corresponding control areas respectively.

[0027] The control unit is configured to output a corresponding target control signal according to the optical information.

[0028] The target processing unit corresponding to the target control area is configured to convert the target control signal into a first target driving signal and a second target driving signal, and transmit the first target driving signal to the first electrode in the target control area and the second target driving signal to the second electrode in the target control area, so as to adjust the light transmission degree of the transparent panel in the target control area and make the optical information within a preset range.

[0029] Optionally, the transparent panel is divided into a plurality of control areas, and the transparent panel comprises first electrodes and second electrodes located in each of the control areas; the control module comprises a control unit, a first driving chip coupled to the control unit, and a second driving chip coupled to the control unit, the first driving chip being coupled to the first electrodes in each control area respectively, and the second driving chip being coupled to the second electrodes in each control area respectively.

[0030] The control unit is configured to output a corresponding target control signal according to the optical information.

[0031] The first driving chip is configured to output a corresponding first target driving signal to the first electrode in the target control area under the control of the target control signal; and the second driving chip is configured to output a corresponding second target driving signal to the second electrode in the target control area under the control of the target control signal, so as to adjust the light transmission degree of the transparent panel in the target control area and make the optical information within a preset range.

[0032] Optionally, the control module comprises a first gamma chip and a second gamma chip.

[0033] The first gamma chip is coupled with the first driving chip, and is configured to adjust an amplitude of a first driving signal output by the first driving chip.

[0034] The second gamma chip is coupled with the second driving chip, and is configured to adjust an amplitude of a second driving signal output by the second driving chip.

[0035] Based on the technical solution of the sun visor assembly, the second aspect of the present application provides a vehicle comprising the sun visor assembly.

[0036] Based on the technical solution of the sun visor assembly, the third aspect of the present application provides a control method of a sun visor assembly, the sun visor assembly comprising a transparent panel, an image acquisition module, a detection module and a control module; wherein the transparent panel is configured to shield light rays passing through the transparent panel towards a human eye, and the light transmittance of the transparent panel is adjustable; the image acquisition module is located on a side of the transparent panel away from the human eye; the control method comprises:

[0037] The image acquisition module acquires image information of the transparent panel and the human eye;

[0038] The control module determines target position information of a fixation point of the human eye on the transparent panel according to the image information, and determines a target control area on the transparent panel corresponding to the target position information;

[0039] The detection module detects optical information corresponding to the light rays passing through the target control area towards the human eye;

[0040] The control module adjusts the light transmittance of the transparent panel in the target control area according to the optical information, so that the optical information is within a preset range.

[0041] Optionally, the step of acquiring image information of the transparent panel and the human eye by the image acquisition module specifically comprises:

[0042] acquiring a first image comprising only the transparent panel, and a second image comprising the transparent panel and the human eye;

[0043] The step of determining target position information of a fixation point of the human eye on the transparent panel according to the image information by the control module specifically comprises:

[0044] processing the first image to obtain a set of numerical values corresponding to each pixel in the first image, forming a first numerical value matrix corresponding to the first image, and establishing a correspondence table between the first numerical value matrix and coordinate position information of the transparent panel;

[0045] processing the second image to obtain a set of numerical values corresponding to each pixel in the second image, and forming a second numerical matrix corresponding to the second image;

[0046] comparing the first numerical matrix and the second numerical matrix, determining a target numerical value in the first numerical matrix that is different from the second numerical matrix, and determining position information corresponding to the target numerical value in the relationship table as the target position information;

[0047] The step of determining the target control area on the transparent panel corresponding to the target position information specifically comprises:

[0048] determining an area value of the control area to be divided according to the distance between the human eye and the transparent panel and the field of view of the human eye;

[0049] dividing the transparent panel into a plurality of control areas according to the area value;

[0050] determining the control area corresponding to the target position information in the plurality of control areas as the target control area.

[0051] Optionally, the transparent panel is divided into a plurality of control areas; the detection module comprises a photosensitive unit corresponding to each of the plurality of control areas; and the control module comprises a control unit.

[0052] The step of detecting, by the detection module, the optical information corresponding to the light ray passing through the target control area and shooting at the human eye specifically comprises:

[0053] detecting, by a target photosensitive unit in the target control area, light intensity information formed by the light ray in the target control area when the light ray passes through the target control area and shoots at the human eye;

[0054] The step of adjusting, by the control module, the light transmission degree of the transparent panel in the target control area according to the optical information so as to make the optical information within a preset range specifically comprises:

[0055] The control unit acquires the light intensity information and compares the light intensity information with a preset light intensity threshold value, and adjusts the light transmission degree of the target control area when the light intensity information is greater than the light intensity threshold value, so that the light intensity information of the target control area is less than the light intensity threshold value.

[0056] Optionally, the image acquisition module is multiplexed as the detection module; and the control module comprises a control unit.

[0057] The step of detecting, by the detection module, the optical information corresponding to the light ray passing through the target control area and shooting at the human eye specifically comprises:

[0058] collecting light brightness information of the light ray when the light ray passes through the target control area and shoots to the human eye, and transmitting the light brightness information to the control unit;

[0059] The control module adjusts the light transmission degree of the transparent panel in the target control area according to the optical information, so that the optical information is within the preset range.

[0060] The control unit compares the light brightness information with a preset light brightness threshold, and adjusts the light transmission degree of the target control area when the light brightness information is greater than the light brightness threshold, so that the light brightness information of the human eye is less than the light brightness threshold.

[0061] Optionally, the transparent panel is divided into a plurality of control areas, and the transparent panel comprises first electrodes and second electrodes located in each control area; the control module comprises a control unit and a plurality of processing units connected with the control unit respectively, the processing units correspond to the control areas one by one; the processing units are coupled with the first electrodes and the second electrodes in the corresponding control areas respectively.

[0062] The control module adjusts the light transmission degree of the transparent panel in the target control area according to the optical information, so that the optical information is within the preset range.

[0063] The control unit outputs the corresponding target control signal according to the optical information.

[0064] The target processing unit corresponding to the target control area converts the target control signal into a first target driving signal and a second target driving signal; and transmits the first target driving signal to the first electrode in the target control area coupled therewith, and transmits the second target driving signal to the second electrode in the target control area coupled therewith; to adjust the light transmission degree of the transparent panel in the target control area, so that the optical information is within the preset range.

[0065] Optionally, the transparent panel is divided into a plurality of control areas, and the transparent panel comprises first electrodes and second electrodes located in each control area; the control module comprises a control unit, a first driving chip coupled with the control unit, and a second driving chip coupled with the control unit, the first driving chip is coupled with the first electrode in each control area respectively, and the second driving chip is coupled with the second electrode in each control area respectively.

[0066] The control unit outputs the corresponding target control signal according to the optical information.

[0067] The first driving chip outputs a corresponding first target driving signal to a first electrode in the target control area under the control of the target control signal; and the second driving chip outputs a corresponding second target driving signal to a second electrode in the target control area under the control of the target control signal, so as to adjust the light transmission degree of the transparent panel in the target control area and make the optical information within a preset range.

[0068] Optionally, the control module comprises a first gamma chip and a second gamma chip; the first gamma chip is coupled with the first driving chip, and the second gamma chip is coupled with the second driving chip; and the control method further comprises:

[0069] The first gamma chip adjusts the amplitude of the first driving signal output by the first driving chip.

[0070] The second gamma chip adjusts the amplitude of the second driving signal output by the second driving chip.

[0071] A fourth aspect of the present application provides a control device of a sun visor assembly, which is applied to a vehicle, and the control device comprises a memory and an executor, and the executor is used for executing the following instructions stored in the memory:

[0072] Obtaining image information of the transparent panel and the human eye;

[0073] According to the image information, determining target position information of a gaze point of the human eye on the transparent panel, and determining a target control area on the transparent panel corresponding to the target position information;

[0074] Detecting corresponding optical information when light passes through the target control area and is directed to the human eye;

[0075] According to the optical information, adjusting the light transmission degree of the transparent panel in the target control area, so as to make the optical information within a preset range.

[0076] In the technical scheme provided by the present application, the image acquisition module acquires image information of the transparent panel and the human eye; the control module can determine target position information of a fixation point of the human eye on the transparent panel and determine a target control area on the transparent panel corresponding to the target position information according to the image information; the detection module can detect corresponding optical information when light passes through the target control area and is directed to the human eye; and the control module can adjust the light transmission degree of the transparent panel in the target control area according to the optical information, so that the optical information is within a preset range. Therefore, in the technical scheme provided by the present application, when strong light passes through the target control area and is directed to the human eye, the light transmission rate of the target control area can be controlled to reduce the light irradiation brightness received by the human eye, thereby avoiding the dizziness problem and the visual field blind area problem caused by strong light irradiation on the human eye. Moreover, in the technical scheme provided by the present application, the corresponding target control area of the transparent panel can be automatically adjusted to change color according to the position of the incident light reaching the human eye, and other areas are not changed in color, thereby realizing the function of automatically adjusting the color change of the target control area in real time according to the lighting condition while ensuring the visual field.

[0077] In the technical scheme provided by the present application, the technical means of multi-area dimming is combined to achieve the technical effect of automatically dimming different areas of the transparent panel, thereby solving the technical problem of human eye dizziness caused by direct sunlight. When the technical scheme provided by the present application is applied to a car, the problem of visual dizziness of the human eye caused by direct sunlight during driving can be solved, and the problem of darkening of the exterior scene and deterioration of the visual field can be avoided. BRIEF DESCRIPTION OF DRAWINGS

[0078] The accompanying drawings, which are included to provide a further understanding of the present application, form a part of the present application and illustrate the illustrative embodiments of the present application and its description, and do not constitute improper limitations on the present application. In the drawings:

[0079] Figure 1 A first module schematic diagram of the sun visor assembly provided by the embodiment of the present application;

[0080] Figure 2 A position schematic diagram between the image acquisition module and the transparent panel and the human eye provided by the embodiment of the present application;

[0081] Figure 3 A schematic diagram of a first numerical matrix provided by the embodiment of the present application;

[0082] Figure 4 A schematic diagram of a second numerical matrix provided by the embodiment of the present application;

[0083] Figure 5A coordinate diagram of a transparent panel and a viewpoint provided for an embodiment of the present application is shown in the figure;

[0084] Figure 6 A second module diagram of a sun visor assembly provided for an embodiment of the present application is shown in the figure;

[0085] Figure 7 A third module diagram of a sun visor assembly provided for an embodiment of the present application is shown in the figure;

[0086] Figure 8 A first control flow chart of a sun visor assembly provided for an embodiment of the present application is shown in the figure;

[0087] Figure 9 A third module diagram of a sun visor assembly provided for an embodiment of the present application is shown in the figure;

[0088] Figure 10 A second control flow chart of a sun visor assembly provided for an embodiment of the present application is shown in the figure;

[0089] Figure 11 A first structure diagram of a control module provided for an embodiment of the present application is shown in the figure;

[0090] Figure 12 A second structure diagram of a control module provided for an embodiment of the present application is shown in the figure. DETAILED DESCRIPTION

[0091] In order to further illustrate the sun visor assembly and the control method, the control device and the vehicle provided by the embodiments of the present application, the following will make a detailed description in combination with the accompanying drawings.

[0092] Please refer to Figure 1 and Figure 2 The sun visor assembly provided by the embodiments of the present application comprises a transparent panel 10, an image acquisition module 20, a detection module and a control module 30, wherein,

[0093] The transparent panel 10 is configured to shield the light rays passing through the transparent panel 10 and shooting towards a human eye 40, and the light transmittance of the transparent panel 10 is adjustable;

[0094] The image acquisition module 20 is located on the side of the transparent panel 10 away from the human eye 40, and is used to acquire image information of the transparent panel 10 and the human eye 40;

[0095] The control module 30 is used to determine target position information of a gaze point of the human eye 40 on the transparent panel 10 and determine a target control area on the transparent panel 10 corresponding to the target position information according to the image information;

[0096] The detection module is used to detect optical information corresponding to the light rays passing through the target control area and shooting towards the human eye 40.

[0097] The control module 30 is further configured to adjust the light transmittance of the transparent panel 10 at the target control area according to the optical information, so that the optical information is within a preset range.

[0098] Specifically, the specific type of the transparent panel 10 is various, and the transparent panel 10 is exemplarily selected as a smart light-adjusting glass panel. The smart light-adjusting glass has the advantage of high transmittance, and the transparent panel 10 made of the smart light-adjusting glass solves the technical problems of opacity or low transmittance of ordinary sunshields or transparent display sunshields. The transparent panel 10 exemplarily includes a liquid crystal panel. The light transmittance of the transparent panel 10 is adjustable, and the transparent panel 10 is exemplarily capable of being divided into a plurality of control areas, each of which includes a first electrode and a second electrode arranged oppositely, and a liquid crystal layer between the first electrode and the second electrode; by controlling the driving signal transmitted to the first electrode and the second electrode, the liquid crystal can be controlled to deflect correspondingly, thereby changing the light transmittance of the corresponding control area.

[0099] The specific structure of the image acquisition module 20 is various, and the image acquisition module 20 exemplarily includes a camera. The image acquisition module 20 can acquire image information of the transparent panel 10 and the human eye 40 in real time, and can acquire the eyeball action characteristics of the human eye 40 by tracking the eyeball. The transparent panel 10 is located between the image acquisition module 20 and the human eye 40, i.e. the image acquisition module 20 is located on the side of the transparent panel 10 away from the human eye 40. Exemplarily, when the sunshade assembly is applied to a vehicle, the image acquisition module 20 can be located between the transparent panel 10 and the windshield of the vehicle. It is worth noting that the setting position of the image acquisition module 20 needs to meet the condition that the image acquisition module 20 can detect the transparent panel 10 and the human eye 40. Since the initial state of the transparent panel 10 is transparent, reasonable adjustment of the installation position of the image acquisition module 20 can meet the above condition.

[0100] Exemplarily, the control module 30 is arranged at the edge of the transparent panel 10, and at least part of the control module 30 can also be integrated on the transparent panel 10. The control module 30 can acquire the angle information of the line of sight of the human eye 40 according to the image information, so as to determine the target position information of the gaze point of the human eye 40 on the transparent panel 10. Exemplarily, the target position information includes coordinate information.

[0101] The transparent panel 10 has a corresponding coordinate information range for each control area when divided into multiple control areas. If the target position information is located in the coordinate information range of a control area, then the control area is the target control area corresponding to the target position information. It is worth noting that the target position information can correspond to one or more control areas.

[0102] The detection module can detect the corresponding optical information when the light passes through the target control area and is directed to the human eye 40. For example, the optical information includes brightness information or illumination intensity information.

[0103] The control module 30 can obtain the optical information from the detection module, or the detection module can transmit the optical information to the control module 30 after detecting the optical information. Based on the optical information, the control module 30 adjusts the light transmission degree of the target control area, so that the value corresponding to the optical information can be within a predetermined range.

[0104] The above light shielding plate assembly includes the following control process when actually applied:

[0105] The image acquisition module 20 obtains image information of the transparent panel 10 and the human eye 40. The control module 30 determines the target position information of the gaze point of the human eye 40 on the transparent panel 10 according to the image information, and determines the target control area on the transparent panel 10 corresponding to the target position information. The detection module detects the corresponding optical information when the light passes through the target control area and is directed to the human eye 40. The control module 30 also adjusts the light transmission degree of the transparent panel 10 in the target control area according to the optical information, so that the optical information is within a predetermined range.

[0106] It is worth noting that the above light shielding plate assembly can be in real-time working state when actually applied. The image acquisition module 20 can acquire image information in real time, the control module 30 can determine the target control area in real time, the detection module can detect optical information in real time, and the control module 30 can adjust the light transmission degree of the target control area in real time according to the optical information obtained in real time.

[0107] According to the specific structure and actual application mode of the light-shielding plate assembly provided in the above embodiment, in the light-shielding plate assembly provided in the embodiment, the image acquisition module 20 acquires image information of the transparent panel 10 and the human eye 40; the control module 30 can determine target position information of a fixation point of the human eye 40 on the transparent panel 10 and determine a target control area on the transparent panel 10 corresponding to the target position information according to the image information; the detection module can detect corresponding optical information when light passes through the target control area and is incident on the human eye 40; and the control module 30 can also adjust the light transmission degree of the transparent panel 10 in the target control area according to the optical information, so that the optical information is within a preset range. Therefore, in the light-shielding plate assembly provided in the embodiment, when strong light passes through the target control area and is incident on the human eye 40, the light transmission rate of the target control area can be controlled to reduce the light irradiation brightness received by the human eye 40, thereby avoiding the dizziness problem and the visual field blind area problem caused by the strong light irradiation on the human eye 40. Moreover, the light-shielding plate assembly provided in the embodiment can automatically adjust the corresponding target control area of the transparent panel 10 to change color according to the position of the incident light reaching the human eye 40, and ensure that other areas do not change color, thereby realizing the function of automatically adjusting the color change of the target control area in real time according to the light condition while ensuring the visual field.

[0108] The light-shielding plate assembly provided in the embodiment combines the technical means of multi-area dimming, achieves the technical effect of automatically dimming different areas of the transparent panel 10, and solves the technical problem of dizziness of the human eye 40 caused by direct sunlight. When the light-shielding plate assembly provided in the embodiment is applied to a car, the visual dizziness problem of the human eye 40 caused by direct sunlight during driving can be solved, and the problem of darkening of the outside scene and deterioration of the visual field can be avoided.

[0109] As shown in Figure 7 and Figure 9 in some embodiments, the image acquisition module 20 is specifically used for:

[0110] acquiring a first image including only the transparent panel 10 and a second image including the transparent panel 10 and the human eye 40;

[0111] As shown in Figure 3 the control module 30 includes a control unit 301, which is used for: processing the first image to obtain a group of values corresponding to each pixel in the first image, forming a first value matrix corresponding to the first image, and establishing a correspondence table between the first value matrix and the coordinate position information of the transparent panel 10;

[0112] As shown in Figure 4The second image is processed to obtain a set of numerical values corresponding to each pixel in the second image, forming a second numerical value matrix corresponding to the second image.

[0113] The first numerical value matrix and the second numerical value matrix are compared to determine a target numerical value in the first numerical value matrix that is different from the second numerical value matrix, and the position information corresponding to the target numerical value in the relationship table is determined as the target position information.

[0114] The control unit 301 is further configured to:

[0115] According to the distance between the human eye 40 and the transparent panel 10, and the field of view of the human eye 40, the area value of the control region to be divided by the transparent panel 10 is determined.

[0116] According to the area value, the transparent panel 10 is divided into a plurality of control regions.

[0117] The control region corresponding to the target position information in the plurality of control regions is determined as the target control region.

[0118] Specifically, the image acquisition module 20 can acquire a first image including only the transparent panel 10, and a second image including the transparent panel 10 and the human eye 40, and transmit the first image and the second image to the control unit 301. For example, the transparent panel 10 and the human eye 40 in the second image overlap together. It is worth noting that the camera obtains the eye movement feature, and the algorithm and implementation method are mature technology, which will not be described here.

[0119] The control module 30 includes a control unit 301, which is exemplarily composed of an MCU (English: Microcontroller Unit; Chinese: Microcontroller Unit 301) control system, an MPU (English: Microprocessor Unit; Chinese: Microprocessor) control system, or an FPGA (English: Field Programmable Gate Array; Chinese: Integrated Circuit) control system, etc.

[0120] The control unit 301 processes the first image, specifically including: using a segmented image method and an image recognition algorithm to obtain a set of numerical values corresponding to each pixel in the first image, forming a first numerical value matrix corresponding to the first image. For example, the numerical value matrix single point pixel is 4bit. The control unit 301 pre-stores the size characteristics of the transparent panel 10, and based on the size characteristics, the control unit 301 can establish a corresponding relationship table between the first numerical value matrix and the coordinate position information of the transparent panel 10.

[0121] The control unit 301 processes the second image, specifically including: using an image segmentation method and an image recognition algorithm to obtain a set of values ​​corresponding to each pixel in the second image, and forming a second value matrix corresponding to the second image.

[0122] The control unit 301 compares the first numerical matrix with the second numerical matrix and determines the target numerical value in the first numerical matrix that is different from that in the second numerical matrix. Figure 3 and Figure 4 As shown, the bold values ​​in the second value matrix are different from the values ​​at the corresponding positions in the first value matrix. After determining the target value, the position information corresponding to the target value can be further determined from the relationship table as the target position information.

[0123] The control unit 301 is further configured to determine the area value of the control region to be divided on the transparent panel 10 based on the distance between the human eye 40 and the transparent panel 10 and the field of view of the human eye 40 (or the resolution of the human eye 40) pre-stored in the system; and then divide the transparent panel 10 into a plurality of control regions according to the area value.

[0124] For example, a rectangular coordinate system is established with the center of the transparent panel 10 as the coordinate center. Figure 5 As shown, assuming that the center of the transparent panel 10 is the origin, the viewpoint of the human eye 40 on the transparent panel 10 can be expressed using rectangular coordinates or polar coordinates. For example, the coordinate range of the transparent panel 10 obtained by the image acquisition module 20 is the horizontal coordinate: (-A, A), the vertical coordinate: (-B, B); Figure 5 The black dot in the middle is the viewpoint, and its coordinates are (x, y).

[0125] The multiple control areas all correspond to a certain coordinate range. According to the target position information and the coordinate ranges corresponding to the control areas, the control area corresponding to the target position information among the multiple control areas can be determined, and this control area is the target control area.

[0126] In the sunshade assembly provided in the above embodiment, the control unit 301 can process the first image and the second image captured by the image acquisition module 20 to determine a first numerical matrix corresponding to the first image and a second numerical matrix corresponding to the second image; and by comparing the first numerical matrix and the second numerical matrix, the target position information can be determined from the determined relationship table. The control unit 301 can also divide the transparent panel 10 into multiple control areas and determine the control area corresponding to the target position information among the multiple control areas as the target control area, thereby determining that the gaze point of the human eye 40 is located on the target control area on the transparent panel 10.

[0127] As shown in the figure, in some embodiments, the transparent panel 10 is divided into a plurality of control areas; the detection module includes a plurality of light sensing units corresponding to the plurality of control areas one by one; Figures 6-8 The target light sensing unit in the target control area is configured to detect the light intensity information formed by the light passing through the target control area and shooting towards the human eye 40;

[0128] The control module 30 includes a control unit 301, which is configured to obtain the light intensity information and compare it with a preset light intensity threshold, and when the light intensity information is greater than the light intensity threshold, adjust the light transmission degree of the target control area to make the light intensity information of the target control area less than the light intensity threshold.

[0129] Specifically, the specific structure of the detection module is various, for example, the detection module includes a plurality of light sensing units corresponding to the plurality of control areas one by one. The light sensing unit includes a light sensing chip and a signal processing unit 50 coupled with the light sensing chip.

[0130] The light sensing chip is located in the corresponding control area. For example, the light sensing chip is located between the first electrode and the second electrode in the corresponding control area. For example, ITO technology can be used to form the light sensing chip on the glass base. The principle of manufacturing light sensing chip, i.e. process, has been very mature on silicon base, which can be directly borrowed on glass base, which will not be described here. The light sensing chip can detect the light intensity information formed by the light passing through the target control area and shooting towards the human eye 40.

[0131] For example, the signal processing unit 50 and the control unit 301 are integrated together. For example, the signal processing unit 50 includes an analog-to-digital conversion unit ADC and a filter unit RC, the analog-to-digital conversion unit is used to convert the light intensity information detected by the light sensing chip into a digital signal, and the light intensity information converted by analog-to-digital is transmitted to the filter unit, the filter unit filters the received light intensity information, and the control unit 301 obtains the filtered light intensity information.

[0132]

[0133] ​It is worth noting that when the photosensitive chip detects the light intensity information, there are two cases. In the first case, all photosensitive chips detect the light intensity information of the corresponding control area and transmit it to the corresponding signal processing unit. The control unit 301 obtains the light intensity information detected by the photosensitive unit corresponding to the target control area as needed. In the second case, all photosensitive chips perform detection functions according to the instruction signal provided by the control unit 301. That is, when the photosensitive chip receives the instruction signal from the control unit 301, it performs the detection function, and when the photosensitive chip does not receive the instruction signal from the control unit 301, it does not perform the detection function. In this case, after the control unit 301 determines the target control area, it only needs to send an instruction signal to the photosensitive chip corresponding to the target control area. The photosensitive chip corresponding to the target control area detects the light intensity information of the target control area based on the above instruction signal and transmits the light intensity information to the corresponding signal processing unit. The control unit 301 only needs to obtain the light intensity information processed by the signal processing unit.

[0134] As shown in Figure 7 The above light shielding assembly further includes a power module 70 for providing corresponding power signals to the control unit 301, the signal processing unit 50, and the transparent panel 10.

[0135] After obtaining the light intensity information, the control unit 301 can compare the light intensity information with a preset light intensity threshold. When the light intensity information is greater than the light intensity threshold, the light transmission degree of the target control area is adjusted to make the light intensity information of the target control area less than the light intensity threshold.

[0136] It should be noted that when the light intensity information is greater than the light intensity threshold, the light transmission degree of the target control area is adjusted. After adjustment, the photosensitive unit detects the light intensity information of the target control area again, and compares the light intensity information with the preset light intensity threshold. The above process is repeated until the light intensity information of the target control area is less than the light intensity threshold.

[0137] It is worth noting that when setting the light intensity threshold, it is necessary to satisfy that when the light intensity information is equal to or less than the light intensity threshold, the human eye 40 will not produce a dazzling or dizzy feeling.

[0138] The light shielding plate assembly provided by the above embodiment can detect the light intensity information of the target control area through the photosensitive unit, compare the light intensity information with the preset light intensity threshold, determine whether the light transmittance of the target control area needs to be adjusted, and automatically adjust the light of the target control area when the light intensity information is greater than the light intensity threshold, so that the human eye 40 can avoid direct strong light.

[0139] As shown in Figure 9 and Figure 10 In some embodiments, the image acquisition module 20 is multiplexed as the detection module; the control module 30 includes a control unit 301; the image acquisition module 20 is specifically configured to: acquire the light brightness information at the human eye 40 when the light passes through the target control area and shoots at the human eye 40, and transmit the light brightness information to the control unit 301.

[0140] The control unit 301 is configured to: compare the light brightness information with a preset light brightness threshold, and adjust the light transmittance of the target control area when the light brightness information is greater than the light brightness threshold, so that the light brightness information at the human eye 40 is less than the light brightness threshold.

[0141] Specifically, the image acquisition module 20 is multiplexed as the detection module, which can acquire the light brightness information at the human eye 40 when the light passes through the target control area and shoots at the human eye 40, and transmit the light brightness information to the control unit 301.

[0142] The control unit 301 can compare the light brightness information with a preset light brightness threshold, and adjust the light transmittance of the target control area when the light brightness information is greater than the light brightness threshold, so that the light brightness information at the human eye 40 is less than the light brightness threshold.

[0143] It should be noted that when the light brightness information is greater than the light brightness threshold, the light transmittance of the target control area is adjusted, and after the adjustment, the light brightness information at the human eye 40 when the light passes through the target control area and shoots at the human eye 40 is acquired again through the image acquisition module 20. The light brightness information is compared with the preset light brightness threshold again, and the above process is continuously cycled until the light brightness information at the human eye 40 is less than the light brightness threshold.

[0144] It is worth noting that when setting the light brightness threshold, it needs to meet that when the light brightness information is equal to or less than the light brightness threshold, the human eye 40 will not have a feeling of dazzling or dizziness.

[0145] The light-shielding plate assembly provided by the above embodiment does not need to internally dispose a photosensitive unit in the transparent panel 10, but only collects light brightness information at the human eye 40 through the image collection module 20, and determines whether the light transmittance of the target control area needs to be adjusted by comparing the light brightness information with a preset light brightness threshold value. When the light brightness information is greater than the light brightness threshold value, the light of the target control area is automatically adjusted, so as to achieve the effect of avoiding direct strong light of the human eye 40.

[0146] As shown in Figure 9 The light-shielding plate assembly further includes a power module 70 for providing corresponding power signals for the control unit 301 and the transparent panel 10.

[0147] As shown in Figure 11 In some embodiments, the transparent panel 10 is divided into a plurality of control areas, and the transparent panel 10 includes first electrodes and second electrodes in each control area; the control module 30 includes a control unit 301 and a plurality of processing units 302 connected to the control unit 301 respectively, and the processing units 302 correspond to the control areas one by one; and the processing units 302 are respectively coupled to the first electrodes and the second electrodes in the corresponding control areas.

[0148] The control unit 301 is configured to output a corresponding target control signal according to the optical information.

[0149] The target processing unit 302 corresponding to the target control area is configured to convert the target control signal into a first target driving signal and a second target driving signal, and transmit the first target driving signal to the first electrode in the target control area and the second target driving signal to the second electrode in the target control area, so as to adjust the light transmittance of the transparent panel 10 in the target control area and make the optical information within a preset range.

[0150] Specifically, the transparent panel 10 can be divided into a plurality of control areas, for example, the plurality of control areas include 16 areas to 32 areas.

[0151] The processing unit 302 can be of various types, for example, the processing unit 302 includes a digital-to-analog conversion unit DAC and a signal amplification unit OPA. The control unit 301 sends a control signal to the digital-to-analog conversion unit, the digital-to-analog conversion unit converts the received control signal into an analog signal, and further amplifies the analog signal through the signal amplification unit to generate a first driving signal and a second driving signal; the first driving signal is transmitted to the first electrode in the corresponding control area, and the second driving signal is transmitted to the second electrode in the corresponding control area.

[0152] Exemplarily, the processing unit 302 comprises a signal generator DDS and a signal amplification unit OPA. The control unit 301 sends a control signal to the signal generator, the signal generator generates corresponding two driving signals according to the received control signal, and further generates a first driving signal and a second driving signal after amplification through the signal amplification unit; the first driving signal is transmitted to the first electrode in the corresponding control area, and the second driving signal is transmitted to the second electrode in the corresponding control area.

[0153] Notably, the control unit 301 can output control signals to each processing unit 302 according to actual needs, so that each processing unit 302 can output corresponding driving signals to the first electrode and the second electrode in the corresponding control area according to the received control signal, so that each control area can have a light transmission degree that meets the actual needs.

[0154] The above-described light shielding assembly further comprises a power module 70, which exemplarily comprises a 27V power supply and a control system voltage domain. The 27V power supply is provided to the control system voltage domain, which generates a positive and negative 24V power supply provided to the signal amplification unit OPA, and also generates corresponding other power signals to the control unit 301.

[0155] In actual adjustment of the light transmission degree of the target control area of the transparent panel 10, the control unit 301 can output a corresponding target control signal according to the optical information, which is converted into a first target driving signal and a second target driving signal, so that the light transmission degree of the transparent panel 10 in the target control area is reduced, so that the optical information obtained again can be within a preset range.

[0156] The light shielding assembly provided by the above embodiment can realize independent adjustment of multiple control areas through the control unit 301 and the multiple processing units 302, so as to better control the light transmission degree of the transparent panel 10 in each area.

[0157] As shown in FIG. 1, Figure 12 In some embodiments, the transparent panel 10 is divided into multiple control areas, and the transparent panel 10 comprises first electrodes and second electrodes in each control area; the control module 30 comprises a control unit 301, a first driving chip Source_IC:1 coupled to the control unit 301, and a second driving chip Source_IC:2 coupled to the control unit 301, the first driving chip is respectively coupled to the first electrode in each control area, and the second driving chip is respectively coupled to the second electrode in each control area;

[0158] The control unit 301 is configured to output a corresponding target control signal according to the optical information.

[0159] The first driving chip is configured to output a corresponding first target driving signal to the first electrode in the target control area under the control of the target control signal; and the second driving chip is configured to output a corresponding second target driving signal to the second electrode in the target control area under the control of the target control signal, so as to adjust the light transmission degree of the transparent panel 10 in the target control area and make the optical information within a preset range.

[0160] Specifically, the transparent panel 10 can be divided into a plurality of control areas, and for example, 1024 driving channels are required for the plurality of control areas.

[0161] The control unit 301 is coupled to the first driving chip and the second driving chip respectively, and is configured to output a control signal to the first driving chip and the second driving chip. The first driving chip is coupled to the first electrode in each control area respectively, and is configured to output a first driving signal to the first electrode in each control area under the control of the received control signal. The second driving chip is coupled to the second electrode in each control area respectively, and is configured to output a second driving signal to the second electrode in each control area under the control of the received control signal.

[0162] It is worth noting that the first driving chip and the second driving chip can output corresponding driving signals to the first electrode and the second electrode in each control area according to actual needs, so that each control area can have a light transmission degree meeting actual needs.

[0163] In addition, the first driving chip and the second driving chip can be driving chips commonly used in the display field, which can realize the output of high-voltage square waves. By setting the control module 30 to include the first driving chip and the second driving chip, simultaneous output of positive and negative polarities can be realized, meeting the driving voltage requirements of the first electrode and the second electrode in the transparent panel 10.

[0164] In actual adjustment of the light transmission degree of the target control area of the transparent panel 10, the control unit 301 can output a corresponding target control signal according to the optical information; the first driving chip outputs a corresponding first target driving signal to the first electrode in the target control area under the control of the target control signal; and the second driving chip outputs a corresponding second target driving signal to the second electrode in the target control area under the control of the target control signal, so as to adjust the light transmission degree of the transparent panel 10 in the target control area and make the optical information within a preset range.

[0165] The control module 30 includes the first driving chip and the second driving chip, which can control the polarity change of the first electrode and the second electrode according to the driving needs of the liquid crystal, avoid the polarization of the liquid crystal, and effectively prolong the service life of the transparent panel 10.

[0166] The light shielding plate assembly provided by the above embodiment can control the adjustment frequency of the light transmission degree of the transparent panel 10 by controlling the frequency of the control signal output by the control unit 301, thereby better adjusting the light transmission degree of the transparent panel 10.

[0167] As shown in Figure 12 In some embodiments, the control module 30 further includes a first gamma chip Gamma IC:1 and a second gamma chip Gamma IC:2.

[0168] The first gamma chip is coupled with the first driving chip and is configured to adjust the amplitude of the first driving signal output by the first driving chip.

[0169] The second gamma chip is coupled with the second driving chip and is configured to adjust the amplitude of the second driving signal output by the second driving chip.

[0170] Specifically, the control module 30 includes the first gamma chip and the second gamma chip, which can adjust the output voltage amplitude of the gamma chip according to the control needs, thereby changing the voltage amplitude output by the driving chip, achieving the effect that the amplitude voltage is controllable at any time according to the dimming needs. The voltage amplitude output by the driving chip is adjusted by the first gamma chip and the second gamma chip, so that the light transmission degree of the light shielding plate changes better continuously.

[0171] The light shielding assembly further includes a power module 70. For example, the power module 70 includes a 27V power supply and a control system voltage domain. The 27V power supply is provided to the control system voltage domain, and the control system voltage domain generates corresponding power signals to the control unit 301 and the gamma chip.

[0172] The light shielding plate assembly provided by the above embodiment realizes the functions of satisfying the multi-channel dimming needs and being adjustable in polarity, amplitude, and frequency by adopting the driving mode of the double driving chips.

[0173] As shown in Figure 1As shown, in some embodiments, the sun visor assembly can further include a voice module 60, which, for example, includes a voice speaker. The voice module 60 can play content under the control of the control module 30. For example, in the initial state, the control module 30 can remind the driver of the sitting posture through the voice module 60, so that the image acquisition module 20 can acquire more accurate image information.

[0174] The embodiment of the present application also provides a vehicle comprising the sun visor assembly provided in the above embodiment.

[0175] In the sun visor assembly provided in the above embodiment, when the strong light passes through the target control area and irradiates the human eye 40, the light irradiation brightness received at the human eye 40 can be reduced by controlling the light transmittance of the target control area, thereby avoiding the problems of dizziness and visual blind area caused by the strong light irradiating the human eye 40. Moreover, the sun visor assembly provided in the above embodiment can automatically adjust the corresponding target control area of the transparent panel 10 to change color according to the position of the incident light reaching the human eye 40, and ensure that other areas do not change color, thereby realizing the function of automatically adjusting the color change of the target control area in real time according to the light condition under the condition of ensuring the field of view. The sun visor assembly provided in the above embodiment combines the technical means of multi-area dimming, and achieves the technical effect of automatically dimming different areas of the transparent panel 10, thereby solving the technical problem of dizziness of the human eye 40 caused by direct sunlight.

[0176] The vehicle provided in the embodiment of the present application can solve the problem of visual dizziness of the human eye 40 caused by direct sunlight during the driving of the vehicle, and also avoid the problems of darkening of the external scene and deterioration of the field of view.

[0177] The embodiment of the present application also provides a control method of a sun visor assembly, which is used for controlling the sun visor assembly provided in the above embodiment, and the sun visor assembly comprises a transparent panel 10, an image acquisition module 20, a detection module and a control module 30; wherein the transparent panel 10 is configured to shield the light irradiating the human eye 40 through the transparent panel 10, and the light transmittance of the transparent panel 10 is adjustable; the image acquisition module 20 is located on the side of the transparent panel 10 away from the human eye 40; and the control method comprises the following steps:

[0178] The image acquisition module 20 acquires image information of the transparent panel 10 and the human eye 40;

[0179] The control module 30 determines target position information of the gaze point of the human eye 40 on the transparent panel 10 according to the image information, and determines a target control area on the transparent panel 10 corresponding to the target position information;

[0180] The detection module detects corresponding optical information when the light passes through the target control area and is directed to the human eye 40.

[0181] The control module 30 adjusts the light transmission degree of the transparent panel 10 in the target control area according to the optical information, so that the optical information is within a preset range.

[0182] In the control method of the light-shielding plate assembly provided by the embodiment of the application, the image acquisition module 20 acquires image information of the transparent panel 10 and the human eye 40; the control module 30 can determine target position information of a fixation point of the human eye 40 on the transparent panel 10 according to the image information, and determine a target control area on the transparent panel 10 corresponding to the target position information; the detection module can detect corresponding optical information when the light passes through the target control area and is directed to the human eye 40; and the control module 30 can also adjust the light transmission degree of the transparent panel 10 in the target control area according to the optical information, so that the optical information is within a preset range. Therefore, when the light-shielding plate assembly is controlled by using the control method of the light-shielding plate assembly provided by the embodiment of the application, the light transmission rate of the target control area can be controlled when the strong light passes through the target control area and is directed to the human eye 40, so that the light irradiation brightness received by the human eye 40 is reduced, thereby avoiding the dizziness problem and the visual field blind area problem caused by the strong light irradiation of the human eye 40. Moreover, when the light-shielding plate assembly is controlled by using the control method of the light-shielding plate assembly provided by the embodiment of the application, the corresponding target control area of the transparent panel 10 can be automatically adjusted to change color according to the position of the incident light reaching the human eye 40, and other areas are not changed in color, so that the function of automatically adjusting the color change of the target control area according to the light irradiation condition in real time is realized under the condition of guaranteeing the visual field.

[0183] When the light-shielding plate assembly is controlled by using the control method of the light-shielding plate assembly provided by the embodiment of the application, the technical means of multi-area dimming is combined, so that the technical effect of automatically dimming in different areas of the transparent panel 10 is achieved, and the technical problem of dizziness of the human eye 40 caused by the direct sunlight is solved.

[0184] In some embodiments, the step of acquiring, by the image acquisition module 20, the image information of the transparent panel 10 and the human eye 40 specifically includes:

[0185] acquiring a first image including only the transparent panel 10, and a second image including the transparent panel 10 and the human eye 40 at the same time;

[0186] The step of determining, by the control module 30, target position information of a fixation point of the human eye 40 on the transparent panel 10 according to the image information specifically includes:

[0187] processing the first image to obtain a set of numerical values corresponding to each pixel in the first image, forming a first numerical matrix corresponding to the first image, and establishing a correspondence table between the first numerical matrix and coordinate position information of the transparent panel 10;

[0188] processing the second image to obtain a set of numerical values corresponding to each pixel in the second image, forming a second numerical matrix corresponding to the second image;

[0189] comparing the first numerical matrix and the second numerical matrix to determine a target numerical value different from the second numerical matrix in the first numerical matrix, and determining the position information corresponding to the target numerical value from the relationship table as the target position information;

[0190] The step of determining the target control area on the transparent panel 10 corresponding to the target position information specifically comprises:

[0191] determining an area value of the control area to be divided according to the distance between the human eye 40 and the transparent panel 10 and the field of view of the human eye 40;

[0192] dividing the transparent panel 10 into a plurality of control areas according to the area value;

[0193] determining the control area corresponding to the target position information in the plurality of control areas as the target control area.

[0194] When the control method of the sun visor assembly provided in the above embodiments is used to control the sun visor assembly, the control unit 301 can determine the first numerical matrix corresponding to the first image and the second numerical matrix corresponding to the second image by processing the first image and the second image collected by the image collection module 20, and determine the target position information from the determined relationship table by comparing the first numerical matrix and the second numerical matrix. The control unit 301 can also divide the transparent panel 10 into a plurality of control areas, determine the control area corresponding to the target position information in the plurality of control areas as the target control area, so as to realize the determination of the target control area on the transparent panel 10 where the gaze point of the human eye 40 is located.

[0195] In some embodiments, the transparent panel 10 is divided into a plurality of control areas; the detection module comprises a photosensitive unit corresponding to each of the plurality of control areas; and the control module 30 comprises a control unit 301;

[0196] The step of detecting the optical information corresponding to the light ray passing through the target control area and shooting towards the human eye 40 specifically comprises:

[0197] The target light sensing unit in the target control area detects light intensity information formed by light passing through the target control area and directed to the human eye 40;

[0198] The control module 30 adjusts the light transmittance of the transparent panel 10 in the target control area according to the optical information, so that the optical information is within a preset range. The step specifically includes:

[0199] The control unit 301 acquires the light intensity information and compares it with a preset light intensity threshold. When the light intensity information is greater than the light intensity threshold, the light transmittance of the target control area is adjusted so that the light intensity information of the target control area is less than the light intensity threshold.

[0200] When the light shielding plate assembly is controlled by the control method provided by the above embodiments, the light intensity information of the target control area can be detected by the light sensing unit, and whether the light transmittance of the target control area needs to be adjusted can be determined by comparing the light intensity information with a preset light intensity threshold. When the light intensity information is greater than the light intensity threshold, the light of the target control area is automatically adjusted, so that the human eye 40 avoids direct sunlight.

[0201] In some embodiments, the image acquisition module 20 is multiplexed as the detection module; the control module 30 includes a control unit 301;

[0202] The detection module detects the corresponding optical information when light passes through the target control area and is directed to the human eye 40. The step specifically includes:

[0203] The light brightness information of the human eye 40 when light passes through the target control area and is directed to the human eye 40 is acquired, and the light brightness information is transmitted to the control unit 301;

[0204] The control module 30 adjusts the light transmittance of the transparent panel 10 in the target control area according to the optical information, so that the optical information is within a preset range. The step specifically includes:

[0205] The control unit 301 compares the light brightness information with a preset light brightness threshold. When the light brightness information is greater than the light brightness threshold, the light transmittance of the target control area is adjusted so that the light brightness information of the human eye 40 is less than the light brightness threshold.

[0206] When the control method of the sun visor assembly provided in the above embodiments is used to control the sun visor assembly, a photosensitive unit does not need to be built in the transparent panel 10, and only the light brightness information at the human eye 40 is collected by the image collection module 20, and whether the light transmittance of the target control area needs to be adjusted is determined by comparing the light brightness information with a preset light brightness threshold value, and when the light brightness information is greater than the light brightness threshold value, the light of the target control area is automatically adjusted, so that the human eye 40 avoids direct sunlight.

[0207] In some embodiments, the transparent panel 10 is divided into a plurality of control areas, and the transparent panel 10 includes first electrodes and second electrodes located in each of the control areas; the control module 30 includes a control unit 301 and a plurality of processing units respectively connected to the control unit 301, and the processing units correspond one-to-one to the control areas; and the processing units are respectively coupled to the first electrodes and the second electrodes in the corresponding control areas.

[0208] The step of adjusting the light transmittance of the transparent panel 10 in the target control area according to the optical information so that the optical information is within a preset range specifically includes:

[0209] The control unit 301 outputs a corresponding target control signal according to the optical information.

[0210] The target processing unit corresponding to the target control area converts the target control signal into a first target driving signal and a second target driving signal, and transmits the first target driving signal to the first electrode in the target control area and transmits the second target driving signal to the second electrode in the target control area, so as to adjust the light transmittance of the transparent panel 10 in the target control area and make the optical information within a preset range.

[0211] When the control method of the sun visor assembly provided in the above embodiments is used to control the sun visor assembly, the control unit 301 and the plurality of processing units 302 can realize independent adjustment of the plurality of control areas, so as to better control the light transmittance of the transparent panel 10 in each area.

[0212] In some embodiments, the transparent panel 10 is divided into a plurality of control areas, and the transparent panel 10 includes first electrodes and second electrodes located in each of the control areas; the control module 30 includes a control unit 301, a first driving chip coupled to the control unit 301, and a second driving chip coupled to the control unit 301, and the first driving chip is respectively coupled to the first electrode in each control area, and the second driving chip is respectively coupled to the second electrode in each control area.

[0213] The control unit 301 outputs a corresponding target control signal according to the optical information;

[0214] The first driving chip outputs a corresponding first target driving signal to the first electrode in the target control area under the control of the target control signal; and the second driving chip outputs a corresponding second target driving signal to the second electrode in the target control area under the control of the target control signal, so as to adjust the light transmission degree of the transparent panel 10 in the target control area and make the optical information within a preset range.

[0215] In some embodiments, the control module 30 comprises a first gamma chip and a second gamma chip; the first gamma chip is coupled with the first driving chip, and the second gamma chip is coupled with the second driving chip; and the control method further comprises:

[0216] The first gamma chip adjusts the amplitude of the first driving signal output by the first driving chip;

[0217] The second gamma chip adjusts the amplitude of the second driving signal output by the second driving chip.

[0218] The control module 30 comprises the first gamma chip and the second gamma chip, which can adjust the output voltage amplitude of the gamma chip according to the control requirement, so as to change the voltage amplitude output by the driving chip, so as to achieve the effect that the amplitude voltage is controllable at any time according to the dimming requirement. The voltage amplitude output by the driving chip is adjusted by the first gamma chip and the second gamma chip, so that the change of the light transmission degree of the light shielding plate has better continuity.

[0219] When the control method of the light shielding plate assembly provided by the above-mentioned embodiments is used to control the light shielding plate assembly, the driving mode of the double driving chips is adopted, so as to realize the functions of meeting the multi-channel dimming requirement, and the polarity, amplitude and frequency are adjustable.

[0220] The embodiment of the application further provides a control device of a light shielding plate assembly, which is applied to a vehicle, and comprises a memory and an executor, wherein the executor is used to execute the steps in the above-mentioned method embodiments stored in the memory.

[0221] The executor is specifically used to execute the following instructions:

[0222] Obtain image information of the transparent panel 10 and the human eye 40;

[0223] According to the image information, target position information of a gaze point of the human eye 40 on the transparent panel 10 is determined, and a target control area on the transparent panel 10 corresponding to the target position information is determined;

[0224] Optical information corresponding to the case that light rays pass through the target control area and are incident on the human eye 40 is detected;

[0225] According to the optical information, the degree of light transmission of the transparent panel 10 in the target control area is adjusted, so that the optical information is within a preset range.

[0226] Exemplarily, the specific types of the memory are various, and exemplarily, a Read-Only Memory (ROM) or a Random Access Memory (RAM) or the like can be used.

[0227] The control device of the light-shielding plate assembly provided by the embodiment of the present application can reduce the light irradiation brightness received by the human eye 40 by controlling the light transmittance of the target control area when the strong light passes through the target control area and is incident on the human eye 40, thereby avoiding the problems of dizziness and visual blind area caused by the strong light irradiation on the human eye 40. Moreover, the control device of the light-shielding plate assembly provided by the embodiment of the present application can automatically adjust the corresponding target control area of the transparent panel 10 to change color according to the position of the incident light reaching the human eye 40, and ensure that other areas do not change color, thereby realizing the function of automatically adjusting the color change of the target control area in real time according to the light condition under the condition of ensuring the visual field.

[0228] The control device of the light-shielding plate assembly provided by the embodiment of the present application combines the technical means of multi-area dimming, and achieves the technical effect of automatically dimming different areas of the transparent panel 10, thereby solving the technical problem of dizziness of the human eye 40 caused by direct sunlight. When the control device of the light-shielding plate assembly provided by the embodiment of the present application is applied to a car, the problem of darkening of the exterior scene and deterioration of the visual field can be avoided while solving the problem of visual dizziness of the human eye 40 caused by direct sunlight during driving.

[0229] The executor is further used to execute the following instructions stored in the memory:

[0230] The first image only including the transparent panel 10 is collected, and the second image including the transparent panel 10 and the human eye 40 is collected;

[0231] The first image is processed to obtain a group of values corresponding to each pixel in the first image, form a first value matrix corresponding to the first image, and establish a correspondence table between the first value matrix and the coordinate position information of the transparent panel 10;

[0232] processing the second image to obtain a set of numerical values corresponding to each pixel in the second image, forming a second numerical matrix corresponding to the second image;

[0233] comparing the first numerical matrix and the second numerical matrix to determine a target numerical value in the first numerical matrix that is different from the second numerical matrix, and determining position information corresponding to the target numerical value in the relationship table as the target position information;

[0234] determining an area value of a control region to be divided for the transparent panel 10 according to the distance between the human eye 40 and the transparent panel 10 and the field of view of the human eye 40;

[0235] dividing the transparent panel 10 into a plurality of control regions according to the area value;

[0236] determining a control region corresponding to the target position information in the plurality of control regions as a target control region.

[0237] The executor is further configured to execute the following instructions stored in the memory:

[0238] detecting light intensity information formed by light passing through the target control region and reaching the human eye 40;

[0239] adjusting the light transmission degree of the transparent panel 10 in the target control region according to the optical information, so that the optical information is within a preset range, and the step specifically includes:

[0240] obtaining the light intensity information and comparing the light intensity information with a preset light intensity threshold value, and when the light intensity information is greater than the light intensity threshold value, adjusting the light transmission degree of the target control region so that the light intensity information of the target control region is less than the light intensity threshold value.

[0241] The executor is further configured to execute the following instructions stored in the memory:

[0242] collecting light brightness information of the human eye 40 when light passing through the target control region reaches the human eye 40, and transmitting the light brightness information to the control unit 301;

[0243] adjusting the light transmission degree of the transparent panel 10 in the target control region according to the optical information, so that the optical information is within a preset range, and the step specifically includes:

[0244] The light brightness information is compared with a preset light brightness threshold, and when the light brightness information is greater than the light brightness threshold, the light transmittance of the target control area is adjusted so that the light brightness information at the human eye 40 is less than the light brightness threshold.

[0245] The executor is further configured to execute the following instructions stored in the memory:

[0246] According to the optical information, a corresponding target control signal is outputted;

[0247] The target control signal is converted into a first target driving signal and a second target driving signal, the first target driving signal is transmitted to the first electrode in the target control area coupled thereto, and the second target driving signal is transmitted to the second electrode in the target control area coupled thereto; so as to adjust the light transmittance of the transparent panel 10 in the target control area, and make the optical information within a preset range.

[0248] The executor is further configured to execute the following instructions stored in the memory:

[0249] According to the optical information, a corresponding target control signal is outputted;

[0250] Under the control of the target control signal, a corresponding first target driving signal is outputted to the first electrode in the target control area, and a corresponding second target driving signal is outputted to the second electrode in the target control area; so as to adjust the light transmittance of the transparent panel 10 in the target control area, and make the optical information within a preset range.

[0251] The executor is further configured to execute the following instructions stored in the memory:

[0252] The amplitude of the first driving signal outputted by the first driving chip is adjusted;

[0253] The amplitude of the second driving signal outputted by the second driving chip is adjusted.

[0254] It should be noted that each of the embodiments in the specification is described in a progressive manner, and the same and similar parts between the embodiments can be referred to each other, and each embodiment mainly describes the difference from other embodiments. Especially, for the method embodiment, since it is basically similar to the product embodiment, it is described more simply, and the related parts can be referred to the part of the product embodiment.

[0255] Unless otherwise defined, technical terms or scientific terms used in the present disclosure shall have the same meaning as commonly understood by one of ordinary skill in the art to which this disclosure belongs. The terms "first", "second", and similar terms are used to distinguish one element from another, and are not necessarily used to describe a sequential or chronological order. The terms "comprises", "comprising", or any other variation thereof are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can include other elements not expressly listed or inherent to such process, method, article, or apparatus. The terms "connected", "coupled", or any variant thereof are not limited to a direct connection or coupling, but also include an indirect connection or coupling, such as through an intermediary. The terms "upper", "lower", "left", "right", and the like are used only to denote relative positions, and can change accordingly when the absolute positions of the described objects are changed.

[0256] It can be understood that when an element such as a layer, a film, a region, or a substrate is referred to as being "on" or "under" another element, it can be "directly" on or under the other element, or an intervening element can also be present.

[0257] In the description of the above embodiments, specific features, structures, materials, or characteristics can be combined in any one or more embodiments or examples in a suitable manner.

[0258] The above description is merely illustrative of the application and is not intended to limit the scope of the application. Any changes and modifications that can be made by one of ordinary skill in the art to the application disclosed herein without departing from the spirit and scope of the application should be covered by the scope of the application. Therefore, the scope of the application should be defined by the scope of the claims.

Claims

1. A sunshade assembly, characterized in that: include: Transparent panel, image acquisition module, detection module and control module; wherein, The transparent panel is configured to block light passing through the transparent panel toward human eyes, and the light transmittance of the transparent panel is adjustable; The image acquisition module is located on the side of the transparent panel facing away from the human eye, and is used to acquire image information of the transparent panel and the human eye; The control module is used to: determine the target position information of the gaze point of the human eye on the transparent panel according to the image information, and determine the target control area on the transparent panel corresponding to the target position information; The detection module is used to detect the corresponding optical information when the light passes through the target control area and is emitted to the human eye; The control module is further configured to: adjust the light transmittance of the transparent panel in the target control area according to the optical information so that the optical information is within a preset range; The image acquisition module is specifically used for: Real-time acquisition of a first image including only the transparent panel and a second image including both the transparent panel and the human eye; The control module includes a control unit, which is configured to: process the first image using an image segmentation method and an image recognition algorithm to obtain a set of numerical values ​​corresponding to each pixel in the first image, form a first numerical matrix corresponding to the first image, and establish a correspondence table between the first numerical matrix and the coordinate position information of the transparent panel; Processing the second image using an image segmentation method and an image recognition algorithm to obtain a set of numerical values ​​corresponding to each pixel in the second image, thereby forming a second numerical matrix corresponding to the second image; comparing the first numerical matrix and the second numerical matrix, determining a target numerical value in the first numerical matrix that is different from that in the second numerical matrix, and determining position information corresponding to the target numerical value from the relationship table as the target position information; The control unit is further configured to: Determining the area value of the control area to be divided by the transparent panel according to the distance between the human eye and the transparent panel and the visual field of the human eye; Dividing the transparent panel into a plurality of control areas according to the area values; determining a control area corresponding to the target position information among the multiple control areas as a target control area; The image acquisition module is multiplexed as the detection module; the control module includes a control unit; the image acquisition module is specifically used to: collecting light brightness information at the human eye when the light passes through the target control area and is emitted toward the human eye, and transmitting the light brightness information to the control unit; The control unit is used to compare the light brightness information with a preset light brightness threshold; when the light brightness information is greater than the light brightness threshold, adjust the light transmittance of the target control area; after the adjustment, collect light brightness information at the human eye again through the image acquisition module when the light passes through the target control area and is emitted toward the human eye; and again compare the light brightness information with the preset light brightness threshold; this process is repeated until the light brightness information at the human eye is less than the light brightness threshold.

2. The sunshade assembly according to claim 1, wherein: The transparent panel is divided into a plurality of control areas, and the transparent panel includes a first electrode and a second electrode located in each of the control areas; the control module includes: a control unit, and a plurality of processing units connected to the control unit, the processing units corresponding to the control areas one by one; the processing units are coupled to the first electrode and the second electrode in the corresponding control area respectively; The control unit is used to: output a corresponding target control signal according to the optical information; The target processing unit corresponding to the target control area is used to: convert the target control signal into a first target drive signal and a second target drive signal; and transmit the first target drive signal to the first electrode in the target control area to which it is coupled, and transmit the second target drive signal to the second electrode in the target control area to which it is coupled; so as to adjust the transmittance of the transparent panel in the target control area so that the optical information is within a preset range.

3. The sunshade assembly according to claim 1, wherein: The transparent panel is divided into a plurality of control areas, and the transparent panel includes a first electrode and a second electrode located in each of the control areas; the control module includes: a control unit, a first driver chip coupled to the control unit, and a second driver chip coupled to the control unit, the first driver chip being coupled to the first electrode in each of the control areas, and the second driver chip being coupled to the second electrode in each of the control areas; The control unit is used to: output a corresponding target control signal according to the optical information; The first driver chip is used to: under the control of the target control signal, output a corresponding first target drive signal to the first electrode in the target control area; the second driver chip is used to: under the control of the target control signal, output a corresponding second target drive signal to the second electrode in the target control area; to adjust the transmittance of the transparent panel in the target control area so that the optical information is within a preset range.

4. The sunshade assembly according to claim 3, wherein: The control module includes: a first gamma chip and a second gamma chip; The first gamma chip is coupled to the first driver chip and is used to adjust the amplitude of the first driving signal output by the first driver chip; The second gamma chip is coupled to the second driver chip and is used to adjust the amplitude of the second driving signal output by the second driver chip.

5. A vehicle, characterized in that: The utility model comprises the sunshade assembly according to any one of claims 1 to 4.

6. A control method for a sunshade assembly, characterized in that: The shading panel assembly includes a transparent panel, an image acquisition module, a detection module, and a control module; wherein the transparent panel is configured to block light passing through the transparent panel toward the human eye, and the light transmittance of the transparent panel is adjustable; the image acquisition module is located on the side of the transparent panel facing away from the human eye; the control method includes: The image acquisition module acquires image information of the transparent panel and the human eye; The control module determines target position information of the gaze point of the human eye on the transparent panel based on the image information, and determines a target control area on the transparent panel corresponding to the target position information; The detection module detects the corresponding optical information when the light passes through the target control area and is emitted to the human eye; The control module adjusts the light transmittance of the transparent panel in the target control area according to the optical information so that the optical information is within a preset range; The step of the image acquisition module acquiring image information of the transparent panel and the human eye specifically includes: Real-time acquisition of a first image including only the transparent panel and a second image including both the transparent panel and the human eye; The step of determining, by the control module, target position information of the gaze point of the human eye on the transparent panel based on the image information specifically includes: Processing the first image using an image segmentation method and an image recognition algorithm to obtain a set of numerical values ​​corresponding to each pixel in the first image, forming a first numerical matrix corresponding to the first image, and establishing a correspondence table between the first numerical matrix and the coordinate position information of the transparent panel; Processing the second image using an image segmentation method and an image recognition algorithm to obtain a set of numerical values ​​corresponding to each pixel in the second image, thereby forming a second numerical matrix corresponding to the second image; comparing the first numerical matrix and the second numerical matrix, determining a target numerical value in the first numerical matrix that is different from that in the second numerical matrix, and determining position information corresponding to the target numerical value from the relationship table as the target position information; The step of determining the target control area corresponding to the target position information on the transparent panel specifically includes: Determining the area value of the control area to be divided by the transparent panel according to the distance between the human eye and the transparent panel and the visual field of the human eye; Dividing the transparent panel into a plurality of control areas according to the area values; determining a control area corresponding to the target position information among the multiple control areas as a target control area; The image acquisition module is multiplexed into the detection module; the control module includes a control unit; The step of the detection module detecting the corresponding optical information when the light passes through the target control area and is emitted to the human eye specifically includes: collecting light brightness information at the human eye when the light passes through the target control area and is emitted toward the human eye, and transmitting the light brightness information to the control unit; The step of the control module adjusting the light transmittance of the transparent panel in the target control area according to the optical information so that the optical information is within a preset range specifically includes: The control unit compares the light brightness information with a preset light brightness threshold. When the light brightness information is greater than the light brightness threshold, the control unit adjusts the light transmittance of the target control area. After the adjustment, the image acquisition module again captures the light brightness information at the human eye when the light passes through the target control area and is emitted toward the human eye. The control unit again compares the light brightness information with the preset light brightness threshold. This process is repeated until the light brightness information at the human eye is less than the light brightness threshold.

7. The control method of the sunshade assembly according to claim 6, characterized in that: The transparent panel is divided into a plurality of control areas, and the transparent panel includes a first electrode and a second electrode located in each of the control areas; the control module includes: a control unit, and a plurality of processing units connected to the control unit, the processing units corresponding to the control areas one by one; the processing units are coupled to the first electrode and the second electrode in the corresponding control area respectively; The step of the control module adjusting the light transmittance of the transparent panel in the target control area according to the optical information so that the optical information is within a preset range specifically includes: The control unit outputs a corresponding target control signal according to the optical information; The target processing unit corresponding to the target control area converts the target control signal into a first target drive signal and a second target drive signal; and transmits the first target drive signal to the first electrode in the target control area to which it is coupled, and transmits the second target drive signal to the second electrode in the target control area to which it is coupled; so as to adjust the transmittance of the transparent panel in the target control area so that the optical information is within a preset range.

8. The control method of the sunshade assembly according to claim 6, characterized in that: The transparent panel is divided into a plurality of control areas, and the transparent panel includes a first electrode and a second electrode located in each of the control areas; the control module includes: a control unit, a first driver chip coupled to the control unit, and a second driver chip coupled to the control unit, the first driver chip being coupled to the first electrode in each of the control areas, and the second driver chip being coupled to the second electrode in each of the control areas; The control unit outputs a corresponding target control signal according to the optical information; Under the control of the target control signal, the first driver chip outputs a corresponding first target drive signal to the first electrode in the target control area; the second driver chip is used to: under the control of the target control signal, output a corresponding second target drive signal to the second electrode in the target control area; to adjust the transmittance of the transparent panel in the target control area so that the optical information is within a preset range.

9. The control method of the sunshade assembly according to claim 8, characterized in that: The control module includes: a first gamma chip and a second gamma chip; the first gamma chip is coupled to the first driver chip, and the second gamma chip is coupled to the second driver chip; the control method further includes: The first gamma chip adjusts the amplitude of the first driving signal output by the first driving chip; The second gamma chip adjusts the amplitude of the second driving signal output by the second driving chip.

10. A control device for a sunshade assembly, characterized in that: The control device is applied to a vehicle, and includes a memory and an actuator, wherein the actuator is configured to execute the following instructions stored in the memory: Obtain image information of the transparent panel and the human eye; determining target position information of a gaze point of a human eye on the transparent panel based on the image information, and determining a target control area on the transparent panel corresponding to the target position information; Detecting optical information corresponding to light passing through the target control area and emitting light toward the human eye; According to the optical information, adjusting the light transmittance of the transparent panel in the target control area so that the optical information is within a preset range; The step of obtaining image information of the transparent panel and the human eye specifically includes: Real-time acquisition of a first image including only the transparent panel and a second image including both the transparent panel and the human eye; The step of determining target position information of a gaze point of a human eye on the transparent panel according to the image information specifically includes: Processing the first image using an image segmentation method and an image recognition algorithm to obtain a set of numerical values ​​corresponding to each pixel in the first image, forming a first numerical matrix corresponding to the first image, and establishing a correspondence table between the first numerical matrix and the coordinate position information of the transparent panel; Processing the second image using an image segmentation method and an image recognition algorithm to obtain a set of numerical values ​​corresponding to each pixel in the second image, thereby forming a second numerical matrix corresponding to the second image; comparing the first numerical matrix and the second numerical matrix, determining a target numerical value in the first numerical matrix that is different from that in the second numerical matrix, and determining position information corresponding to the target numerical value from the relationship table as the target position information; The step of determining the target control area corresponding to the target position information on the transparent panel specifically includes: Determining the area value of the control area to be divided by the transparent panel according to the distance between the human eye and the transparent panel and the visual field of the human eye; Dividing the transparent panel into a plurality of control areas according to the area values; determining a control area corresponding to the target position information among the multiple control areas as a target control area; The steps of detecting optical information corresponding to light passing through the target control area and emitting light toward a human eye; and adjusting the light transmittance of the transparent panel in the target control area according to the optical information so that the optical information is within a preset range specifically include: collecting light brightness information at the human eye when the light passes through the target control area and is emitted toward the human eye, and transmitting the light brightness information to the control unit; The control unit is used to compare the light brightness information with a preset light brightness threshold; when the light brightness information is greater than the light brightness threshold, adjust the light transmittance of the target control area; after the adjustment, collect light brightness information at the human eye again through the image acquisition module when the light passes through the target control area and is emitted toward the human eye; and again compare the light brightness information with the preset light brightness threshold; this process is repeated until the light brightness information at the human eye is less than the light brightness threshold.

Images