Environment adaptive digital display device color and brightness adaptive correction system

Abstract

The invention discloses an environment adaptive digital display equipment color and brightness adaptive correction system, and relates to the technical field of display equipment control, and the system comprises a first collection module which is used for collecting interference artificial light source data of a target display within a radius R1, and constructing an artificial light interference data set, the analysis module is used for analyzing the artificial light interference data set, the second acquisition module is used for acquiring natural light, and for a target display, the illumination intensity gzd of the real-time natural light and the real-time reflected light intensity fsd are acquired to obtain the natural light interference intensity Itotal. The system acquires the illumination intensity gzd of real-time natural light and the intensity fsd of real-time reflected light, obtains the natural light interference intensity Itotal and acquires interference artificial light source data within the radius R1, and can formulate a targeted correction scheme according to different interference light source types and intensities, adjust the brightness and color of a target display in time, and adapt to the environment.

Description

Technical Field

[0001] The present invention relates to the technical field of display device control, in particular to an environment-adaptive digital display device color and brightness adaptive correction system. Background Art

[0002] In modern society, digital display devices are widely used in advertising, information release, traffic guidance and other fields. However, in complex lighting environments, such as night markets, commercial streets, squares and other scenes, the target display is often interfered by a large number of artificial and natural light sources, resulting in a decrease in display effect and affecting the visual experience.

[0003] Night market environments usually have a high density of artificial light sources, including commercial advertising screens, store sign lights, car light sources, drone lights, lamp post landscape lighting, emergency signal lights, etc. The brightness, position, height, and illumination direction of these light sources vary, and they may light up alternately or change continuously at different time periods, causing complex lighting interference. In addition, some light sources have a strong direct illumination component, while others may form indirect illumination through reflection, causing deviations in the color and brightness of the target display. For example, a high-brightness LED advertising screen may frequently switch screens in a short period of time, resulting in abnormal changes in the color contrast of the target display; the different illumination angles of the vehicle's high beam and landscape lights may also cause varying degrees of light and shadow interference.

[0004] In addition to the interference of artificial light sources, the changes in natural light sources in night market scenes are also factors that cannot be ignored. Although natural light is weak at night, the afterglow of the sky at sunset or dawn will still have an impact on the display device. In addition, in outdoor environments, moonlight and reflected light from street facilities may also cause distortion of brightness and color. For example, reflected light from wet ground may enhance certain specific wavelengths of light, causing the color temperature of the target display to shift.

[0005] Existing display devices usually rely on static brightness and color correction schemes, which make it difficult to adapt to environmental changes in real time. Some devices use brightness sensors for automatic adjustment, but the adjustment effect is often unstable because they cannot accurately distinguish the interference of artificial light sources and natural light sources. For example, in some cases, the display device may mistakenly reduce the brightness due to short-term strong light interference, affecting visibility; or due to the inability to effectively handle the influence of cross light sources, some areas may be insufficiently bright or overexposed. Therefore, how to conduct a comprehensive analysis of different interfering light source types, brightness, exposure time and angles, and achieve accurate adaptive correction, has become an urgent problem to be solved in the current field of digital display technology. Summary of the invention

[0006] In view of the deficiencies of the prior art, the present invention provides an environment-adaptive color and brightness self-adaptive correction system for digital display devices to solve the problems mentioned in the background art.

[0007] To achieve the above objectives, the present invention is realized through the following technical solutions: An environment-adaptive color and brightness self-adaptive correction system for digital display devices, comprising: a first acquisition module, a second acquisition module, and an analysis module;

[0008] The first acquisition module is used to collect data of interfering artificial light sources within a radius R 1 for the target display, and construct an artificial light interference data set;

[0009] The analysis module is used to analyze the artificial light interference data set and obtain the total artificial light interference intensity Q of n interfering light sources in the interference monitoring area total , and generate a first correction instruction and a second correction instruction;

[0010] The second acquisition module is used to collect natural light. For the target display, the illumination intensity gzd of the real-time natural light and the reflected light intensity fsd are collected to obtain the natural light interference intensity I total , and construct a database, and generate a third correction instruction and a fourth correction instruction.

[0011] Preferably, the first acquisition module includes an interference area division unit and an interference source acquisition unit;

[0012] The interference area division unit is used to collect the position information of the interfering light source device, use the GPS positioning system to position the target display, obtain a three-dimensional map, and in the three-dimensional map, with the target display as the center of the circle, a circular area with a radius of R 1 meters is set as the interference monitoring area, and the radius R 1 is set to 10 - 15m;

[0013] The interference source acquisition unit is used to collect the interfering light source devices in the interference monitoring area. The interfering light source devices include: commercial advertising screens, store sign lights, vehicle light sources, drone lights, lamp post landscape lighting, and emergency signal lights;

[0014] It is also used to collect the brightness value L of the i-th interfering light source device in the interference monitoring area through a brightness sensor i , where i = 1, 2,..., n represents the total number of interfering light source devices in the interference monitoring area, x i , y i , z i are the coordinates of the i-th interfering light source device on the x-axis, y-axis, and z-axis in three-dimensional space, and are incorporated into the three-dimensional map;

[0015] And collect the lighting time of the i-th interfering light source device in the j-th illumination period through a timer is the start time of the i-th interfering light source device in this period, is the end time of the i-th interfering light source device in this period; the lighting time t of the i-th interfering light source device in the j-th illumination period j i The formula is as follows:

[0016]

[0017] Preferably, the artificial light interference data set includes: the brightness value L of the i-th interfering light source device i and the lighting time of the i-th interfering light source device in the j-th illumination period the distance d from the i-th interfering light source to the target display i and the cross-interference area A of the i-th interfering light source device within the time period j ij .

[0018] Preferably, the analysis module includes an artificial light interference unit in the interference monitoring area and a light source cross-interference unit in the interference monitoring area. The light source cross-interference unit in the interference monitoring area is used to construct the overlapping area S i ∩S i-1 ;

[0019] The overlapping area S i ∩S i-1 is obtained through the following calculation formula;

[0020]

[0021] In the formula, represents the illumination area of the i-th interfering light source device, represents the illumination area of the (i - 1)-th interfering light source device adjacent to the i-th interfering light source device, and φ represents the angle between the i-th interfering light source device and the (i - 1)-th interfering light source device adjacent to it;

[0022] Based on the overlapping area S i ∩S i-1 on the target display of the i-th interfering light source and the (i - 1)-th interfering light source in the interference monitoring area, after dimensionless processing, the light source cross-interference area A of the interference monitoring area is calculated and obtained through the following formula ij ;

[0023]

[0024] In the formula, S irepresents the illumination area of the i-th interference source, n represents the total number of interference light source devices in the interference monitoring area, S i-1 represents the illumination area of the i-th interference light source device adjacent to the (i - 1)-th interference light source device, (S i ∩S i-1 ) represents the overlapping illumination area between the i-th interference light source device and the adjacent (i - 1)-th interference light source device.

[0025] Preferably, the artificial light interference unit in the interference monitoring area is used to perform dimensionless processing based on the artificial light interference data set, and then calculate and obtain the total intensity Q of artificial light interference in the interference monitoring area through the following formula total ;

[0026]

[0027] In the formula, n represents the total number of interference light source devices in the interference monitoring area, m represents the illumination time period of the interference source, L i represents the intensity of the i-th light source, T iJ represents the illumination time of the i-th interference light source device in the j-th time period, A ij represents the cross-interference area of the i-th interference light source device in the time period j, θ i represents the angle between the i-th interference light source device and the target display, cos(θ i ) represents the direction of the light source of the i-th interference light source device, O i represents the occlusion coefficient;

[0028] And evaluate the total intensity Q of artificial light interference total with the first threshold. The first threshold includes the first brightness value L1 and the second brightness value L2, and the first brightness value L1 > the second brightness value L2;

[0029] When the total intensity Q of artificial light interference total > the first brightness value L1, it indicates that the light pollution degree in the interference monitoring area exceeds the preset allowable range, resulting in color deviation and brightness abnormality of the target display, and a first correction instruction is generated;

[0030] When the second brightness value L2 ≤ the total intensity Q of artificial light interference total ≤ the first brightness value L1, the light pollution degree in the interference monitoring area does not exceed the preset allowable range, and the color deviation and brightness of the target display are qualified;

[0031] When the total intensity Q of artificial light interference total < the second brightness value L2, it indicates that the light pollution degree in the interference monitoring area exceeds the preset allowable range, the color deviation and brightness of the target display are abnormal, and a second correction instruction is generated.

[0032] Preferably, the first correction instruction includes:

[0033] The total intensity Q of artificial light interference light total > the first brightness value L1, calculate the first difference ratio and set the adjustment ratio not exceeding 20%, the color ratio is 30%, and calculate the first brightness correction ratio A through the following formula 1 and the first color correction ratio B 1 :

[0034]

[0035] In the formula, represents the total intensity Q of artificial light interference light total The first difference ratio between the total intensity Q of artificial light interference light and the first brightness value L1;

[0036] The second correction instruction includes:

[0037] The total intensity Q of artificial light interference light total < the second brightness value L2, calculate the second difference ratio and set the adjustment ratio not exceeding 20%, the color ratio is 30%, and calculate the second brightness correction ratio A through the following formula 2 , the second color correction ratio B 2 :

[0038]

[0039] In the formula, represents the total intensity Q of artificial light interference light total The second difference ratio between the total intensity Q of artificial light interference light and the second brightness value L2.

[0040] Preferably, the second acquisition module includes a natural light acquisition unit, a suspended particle acquisition unit, and an analysis unit;

[0041] The natural light source acquisition unit is used to collect the illumination intensity of natural light, install an ambient light sensor and a reflection sensor on the target display, and collect the real-time illumination intensity gzd of natural light and the real-time reflected light intensity fsd;

[0042] The suspended particle acquisition unit is used to install a dust monitor in front of the target display, collect suspended particle data, and construct a database in combination with the real-time illumination intensity gzd of natural light and the real-time reflected light intensity fsd;

[0043] And collect the front distance w in front of the target display, and take the front distance w as the radius, and obtain the local area P in front of the target display through the following formula:

[0044]

[0045] Where C is the degree of the local central angle, which is measured by an angle sensor.

[0046] Preferably, based on the database, the analysis unit combines the local area P in front of the target display, and after dimensionless processing, calculates and obtains the natural light interference intensity I through the following formula total :

[0047]

[0048] Where V 1 , V 1 and V 3 are the factor weights of physical coverage, electrostatic adsorption, and optical interference respectively, and V 1 +V 2 +V 3 =1. V 1 , V 2 and V 3 are obtained from historical experience. B 0 represents the initial number of suspended particles, o represents the average area covered by a single suspended particle on the target display, which is obtained by statistically averaging the areas of particles of different sizes, MJ represents the total area of the target display, which is obtained according to the size of the target display, and B max represents the maximum number of suspended particles adsorbed by the target display, which is obtained from the product manual and industry standard reference table. The item represents the interference intensity of suspended particles on the target display;

[0049] And the natural light interference intensity I total is evaluated with the second threshold, and the second threshold includes the third brightness value L3 and the fourth brightness value L4, where the third brightness value L3 > the fourth brightness value L4;

[0050] When the natural light interference intensity I total > the third brightness value L3, it means that the light pollution degree of natural light in front of the target display exceeds the preset value, resulting in abnormal brightness and color of the target display, and a third correction instruction is generated;

[0051] When the fourth brightness value L4 ≤ the natural light interference intensity I total ≤ the third brightness value L3, it means that the light pollution degree of natural light in front of the target display does not exceed the preset range, and the brightness and color of the target display are qualified;

[0052] When the natural light interference intensity I total < the fourth brightness value L4, it means that the light pollution degree of natural light in front of the target display exceeds the preset value, resulting in abnormal brightness and color of the target display, and a fourth correction instruction is generated.

[0053] Preferably, the third correction instruction includes:

[0054] When the natural light interference intensity I total > the third brightness value L3, the difference ratio does not exceed 20%, the color ratio is set to 30%, and the corrected brightness ratio Z 1 and the corrected color ratio Y 1 are obtained. The following correction formula is adopted:

[0055]

[0056] In the formula, represents the difference ratio between the natural light interference intensity I total and the third brightness value L3;

[0057] The fourth correction instruction includes:

[0058] When the natural light interference intensity I total < the fourth brightness value L4, the difference ratio does not exceed 20%, the color ratio is set to 30%, and the corrected brightness ratio Z 2 and the corrected color ratio Y 2 are obtained. The following correction formula is adopted:

[0059]

[0060] In the formula, represents the difference ratio between the natural light interference intensity I total and the fourth brightness value L4.

[0061] The present invention provides a color and brightness adaptive correction system for an environment-adaptive digital display device. It has the following beneficial effects:

[0062] (1) For the color and brightness adaptive correction system of the environment-adaptive digital display device, through the collaborative work of the first acquisition module and the second acquisition module, the system can collect and analyze the light source information around the target display in real time, collect the real-time natural light illumination intensity gzd and the real-time reflected light intensity fsd, and obtain the natural light interference intensity I total and collect the interference artificial light source data within the radius R 1 . Whether it is the interference of artificial light sources or natural light sources, the system can adjust the brightness and color of the target display device in real time according to the brightness, position and irradiation direction of different light sources, so as to ensure the stability and visibility of the display effect. By analyzing the artificial light interference data set, the system can accurately identify the artificial light sources affecting the target display. This accurate analysis not only helps the system judge when correction is needed, but also can formulate targeted correction schemes according to different types and intensities of interference light sources, thus avoiding the distortion of the display effect caused by strong light or cross-light source interference.

[0063] (2) The color and brightness adaptive correction system of the environment-adaptive digital display device can generate correction instructions for artificial light sources and natural light sources according to the collected real-time data. The first correction instruction and the second correction instruction are generated for artificial light sources, and the third correction instruction and the fourth correction instruction are generated for natural light sources. According to the total intensity Q of artificial light interference in the interference monitoring area total The result is evaluated with the first threshold. Similarly, the natural light interference intensity I total will be evaluated with the second threshold. According to the results, the brightness and color of the display device are adjusted respectively. When the light source changes frequently or the brightness is too high, the system can reduce the brightness of the target display, and also adjust the color temperature of the target display device to ensure the accuracy of the display effect. Description of the Drawings

[0064] Figure 1 It is a schematic flowchart of the color and brightness adaptive correction system of the environment-adaptive digital display device of the present invention. Detailed Embodiments

[0065] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0066] Embodiment 1

[0067] Please refer to Figure 1 The color and brightness adaptive correction system of the environment-adaptive digital display device includes: a first acquisition module, a second acquisition module, and an analysis module;

[0068] The first acquisition module is used to collect the data of interfering artificial light sources within a radius R 1 for the target display and construct an artificial light interference data set;

[0069] The second acquisition module is used to collect natural light. For the target display, the illumination intensity gzd of real-time natural light and the reflected light intensity fsd of real-time natural light are collected to obtain the natural light interference intensity I total and construct a database to generate the third correction instruction and the fourth correction instruction;

[0070] The analysis module is used to analyze the artificial light interference data set and obtain the total intensity Q of artificial light interference of n interfering light sources in the interference monitoring area total to generate the first correction instruction and the second correction instruction.

[0071] In this embodiment, through the collaborative work of the first acquisition module and the second acquisition module, the system can collect and analyze the light source information around the target display in real time. Whether it is the interference of artificial light sources or natural light sources, the system can adjust the brightness and color of the target display device in real time according to the brightness, position, and irradiation direction of different light sources, thereby ensuring the stability and visibility of the display effect.

[0072] By analyzing the artificial light interference data set, the system can accurately identify the artificial light sources affecting the target display and calculate the total intensity I of these light sources. total This accurate analysis not only helps the system determine when correction is needed but also enables the formulation of targeted correction plans according to different types and intensities of interfering light sources, thus avoiding the distortion of the display effect caused by strong light or cross-light source interference.

[0073] Traditional display devices often cannot accurately distinguish the interference of artificial light sources and natural light sources, resulting in unstable correction effects. Through the real-time monitoring of natural light by the second acquisition module, the system can distinguish and analyze the influence of natural light at different time periods (such as the afterglow at sunset and dawn, moonlight, etc.).

[0074] Based on the real-time data collected, the system can generate correction instructions for artificial light sources and natural light sources and adjust the brightness and color of the display device respectively. For example, when the artificial light source changes frequently or has too high brightness, the system can reduce the brightness of the target display to avoid overexposure; when the intensity of the reflected light changes, the system can adjust the color temperature of the target display device to ensure the accuracy of the display effect.

[0075] Embodiment 2

[0076] This embodiment is an explanatory description of Embodiment 1. Please refer to Figure 1 , specifically, the first acquisition module includes an interference area division unit and an interference source acquisition unit;

[0077] The interference area division unit is used to collect the position information of the interfering light source device, use the GPS positioning system to locate the target display, obtain a three-dimensional map, and in the three-dimensional map, with the target display as the center, a circular area with a radius of R 1 meters is set as the interference monitoring area, and the radius R 1 is set to 10 - 15m;

[0078] The interference source acquisition unit is used to collect the interfering light source devices in the interference monitoring area. The interfering light source devices include: commercial advertising screens, store sign lights, vehicle light sources, drone lights, lamp post landscape lighting, and emergency signal lights;

[0079] It is also used to collect the brightness value L of the i-th interfering light source device in the interference monitoring area through a brightness sensor.i , where \(i = 1, 2, \ldots, n\) represents the total number of interfering light source devices in the interference monitoring area, \(x\) i , \(y\) i , \(z\) i are the coordinates of the \(i\)-th interfering light source device on the \(x\)-axis, \(y\)-axis, and \(z\)-axis in three-dimensional space, integrated into the three-dimensional map;

[0080] And collect the lighting time of the \(i\)-th interfering light source device in the \(j\)-th lighting period through a timer is the start time of the \(i\)-th interfering light source device in this period, is the end time of the \(i\)-th interfering light source device in this period; the lighting time \(t\) of the \(i\)-th interfering light source device in the \(j\)-th lighting period j i The formula is as follows:

[0081]

[0082] In this embodiment, by collecting data of surrounding interfering light sources (such as brightness, position, time, etc.) in real time, the system can automatically adjust the brightness, color, and contrast of the display device according to these changes. In this way, the display can still maintain the best display effect in different lighting environments, avoiding display effect deviation caused by surrounding light source interference. The system can monitor the brightness changes of interfering light sources such as advertising screens, car lights, and drone lights in real time, and automatically adjust the display device according to these changes, thereby reducing the influence of external light sources, improving the readability and visual comfort of the display. By accurately detecting the surrounding light intensity, the system can intelligently adjust the brightness of the display device, avoiding the device from operating in an environment where high brightness is not required, which can effectively save energy and extend the device life. When the brightness of the interfering light source is detected to be low, the display device can reduce the brightness output and save power; while when the brightness of the interfering light source is strong, the system will correspondingly increase the brightness of the display to ensure the visual effect.

[0083] By setting the interference area (interference monitoring area), the system can automatically adjust the range of the monitoring area according to environmental changes, so as to more flexibly adapt to various environmental conditions (such as different time periods or different types of interference sources). If the interfering light sources are too dense in a specific time or space area, the system can automatically expand the interference monitoring area to ensure that it can track and respond to strong interfering light sources in real time, and vice versa.

[0084] The system can identify and classify different interfering light sources (such as advertising screens, vehicle headlights, emergency signal lights, etc.) and perform appropriate corrections according to their types. Through precise collection of interfering light source data, the display device can make the most suitable adjustments for each type of interfering light source. By collecting the brightness values and positions of the interfering light sources at different time periods, the system can evaluate the display effect of the display device in real time and generate automatic correction instructions according to the interference situation to achieve effective compensation for the interfering light sources and keep the display device always in the best working state.

[0085] Embodiment 3

[0086] This embodiment is an explanatory note in Embodiment 1. Please refer to Figure 1 , specifically, the artificial light interference data set includes: the brightness value L of the i-th interfering light source device i , the illumination time t of the i-th interfering light source device in the j-th illuminated time period j i , the distance d from the i-th interfering light source to the target display i and the cross-interference area A of the i-th interfering light source device within the time period j ij .

[0087] The analysis module includes an artificial light interference unit in the interference monitoring area and a light source cross-interference unit in the interference monitoring area. The light source cross-interference unit in the interference monitoring area is used to construct the overlapping area S on the target display of the i-th interfering light source and the (i - 1)-th interfering light source within the interference monitoring area i ∩S i-1 ;

[0088] The overlapping area S i ∩S i-1 is obtained through the following calculation formula;

[0089]

[0090] In the formula, represents the illumination area of the i-th interfering light source device, represents the illumination area of the (i - 1)-th interfering light source device adjacent to the i-th interfering light source device, and φ represents the angle between the i-th interfering light source device and the (i - 1)-th interfering light source device adjacent to it;

[0091] Based on the light source cross-interference area A ij , after dimensionless processing, the light source cross-interference area A in the interference monitoring area is calculated through the following formula ij ;

[0092]

[0093] In the formula, S irepresents the illumination area of the i-th interference source, n represents the total number of interference light source devices in the interference monitoring area, S i-1 represents the illumination area of the i-th interference light source device adjacent to the (i - 1)-th interference light source device, (S i ∩S i-1 ) represents the overlapping illumination area between the i-th interference light source device and the adjacent (i - 1)-th interference light source device.

[0094] The following is the cross-interference analysis table of the interference light sources in the interference monitoring area for the target display

[0095]

[0096]

[0097] In this embodiment, by calculating the cross-interference area, we can quantitatively evaluate the mutual influence between light sources, and then judge the degree of light pollution in the monitoring area. Light pollution will directly affect the display quality of the target display, resulting in color deviation, abnormal brightness, and even affecting the normal operation of the device. By reducing the cross-interference area, the light pollution can be effectively reduced, the performance and display quality of the display can be improved. The calculation of the light source cross-interference area helps us optimize the layout of light sources. By evaluating the cross-interference area, the position, brightness or angle of the light source can be adjusted to minimize the overlapping area between light sources. Optimizing the light source configuration will reduce unnecessary light pollution and improve the brightness and color accuracy of the target display. By calculating the overlapping area and cross-interference area of each interference source, we can establish a dynamic monitoring system to track the interference of light sources on the target display in real time. If the cross-interference area exceeds a certain set threshold, the system can automatically trigger an alarm or a control signal to adjust the light source in time or activate the correction mechanism of the display.

[0098] Example 4. This example is an explanatory note in Example 1. Please refer to Figure 1 , specifically, the artificial light interference unit in the interference monitoring area is used to calculate and obtain the total intensity Q of artificial light interference in the interference monitoring area through the following formula after dimensionless processing according to the artificial light interference data set total ;

[0099]

[0100] In the formula, n represents the total number of interference light source devices in the interference monitoring area, m represents the illumination time period of the interference source, L i represents the brightness of the i-th light source, T iJ represents the illumination time of the i-th interference light source device in the j-th time period, A ij represents the cross-interference area of the i-th interference light source device in the time period j, θ irepresents the angle between the i-th interfering light source device and the target display, cos(θ i ) represents the direction of the light source of the i-th interfering light source device, O i represents the occlusion coefficient, 0 < O i ≤ 1, when there is no occlusion at all, O i = 1, when it is completely occluded, O i = 0, is the distance attenuation term, which conforms to the inverse square law, that is, the light intensity decreases with the square of the distance;

[0101] The following is an example chart for calculating the total intensity of artificial light interference in the interference monitoring area based on the data in the interference light source cross-interference analysis table of the interference monitoring area:

[0102]

[0103] And evaluate the total intensity Q total of the artificial light interference with the first threshold. The first threshold includes the first brightness value L1 and the second brightness value L2, and the first brightness value L1 > the second brightness value L2;

[0104] The total intensity Q total of the artificial light interference > the first brightness value L1, indicating that the degree of light pollution in the interference monitoring area exceeds the preset allowable range, resulting in color deviation and brightness abnormality of the target display, and generating a first correction instruction;

[0105] The second brightness value L2 ≤ the total intensity Q total of the artificial light interference ≤ the first brightness value L1, indicating that the degree of light pollution in the interference monitoring area does not exceed the preset allowable range, and the color deviation and brightness of the target display are qualified;

[0106] The total intensity Q total < the second brightness value L2, indicating that the degree of light pollution in the interference monitoring area exceeds the preset allowable range, the color deviation and brightness of the target display are abnormal, and generating a second correction instruction.

[0107] The following is a matching example chart

[0108]

[0109] In this embodiment, by calculating the influence of each interfering light source on the target display, the interference situation of the light source can be monitored in real time. If the total interference light intensity exceeds the set threshold, the system can automatically trigger the correction mechanism. According to the calculation results, the position, angle, brightness, or switch state of the interfering light source can be adjusted to reduce light pollution and ensure the display effect of the display. By calculating the cross-interference area between different light sources, the layout of the light sources can be optimized to reduce the mutual interference between the light sources, ensure that the target display obtains uniform illumination, and avoid uneven brightness caused by over-illuminated areas. When it is detected that the light pollution exceeds the threshold, the system can automatically generate a correction instruction to adjust the brightness and color parameters of the display to ensure the best state of the display effect.

[0110] Example 5. This example is an explanatory note in Example 1. Please refer to Figure 1 , specifically, the first correction instruction includes:

[0111] The total intensity Q of artificial light interference light total > the first brightness value L1, calculate the first difference ratio and set the adjustment ratio not to exceed 20%, the color ratio is 30%, and the first brightness correction ratio A is calculated through the following formula 1 and the first color correction ratio B 1 :

[0112]

[0113] In the formula, represents the total intensity Q of artificial light interference light total The first difference ratio with the first brightness value L1;

[0114] The second correction instruction includes:

[0115] The total intensity Q of artificial light interference light total < the second brightness value L2, calculate the second difference ratio and set the adjustment ratio not to exceed 20%, the color ratio is 30%, and the second brightness correction ratio A is calculated through the following formula 2 , the second color correction ratio B 2 :

[0116]

[0117] In the formula, represents the total intensity Q of artificial light interference light total The second difference ratio with the second brightness value L2.

[0118] In this embodiment, the calibration instruction helps the system automatically adjust the brightness and color of the display by calculating the ratio between the optical interference light intensity and the brightness difference in real time, avoiding display abnormalities caused by light pollution, such as color deviation and uneven brightness. According to the calculation results, the brightness and color of the display are adjusted to ensure that the display effect always remains in the optimal state. Whether under normal or changing interference light source conditions, the ratio settings for brightness and color calibration can effectively maintain the color consistency and brightness stability of the display, reducing visual fatigue caused by display brightness fluctuations and providing a more comfortable viewing experience. Setting the upper limit of the calibration ratio to 20% (brightness calibration) and 30% (color calibration) can prevent the system from over-adjusting and ensure that the calibration process is stable and adaptable to environmental changes.

[0119] Example 6. This example is an explanatory note in Example 1. Please refer to Figure 1 , specifically, the second acquisition module includes a natural light acquisition unit, a suspended particle acquisition unit, and an analysis unit;

[0120] The natural light source acquisition unit is used to acquire the illumination intensity of natural light. An ambient light sensor and a reflection sensor are installed on the target display to acquire the real-time illumination intensity gzd of natural light and the real-time reflected light intensity fsd;

[0121] The suspended particle acquisition unit is used to install a dust monitor in front of the target display to acquire suspended particle data, and combine the real-time illumination intensity gzd of natural light and the real-time reflected light intensity fsd to construct a database;

[0122] And acquire the distance w in front of the target display, and take this front distance w as the radius, and obtain the local area P in front of the target display through the following formula:

[0123]

[0124] In the formula, C is the degree of the local central angle, which is measured by an angle sensor.

[0125] In this embodiment, the ambient light sensor and the reflection sensor installed on the target display are used to acquire the real-time illumination intensity gzd of natural light and the reflected light intensity fsd. These data can be used to evaluate the impact of natural light on aspects such as the brightness and color of the display. Through the real-time monitoring of the illumination intensity, the system can automatically adjust the brightness, contrast, and color temperature of the display under different lighting conditions, avoiding excessive reliance on manual adjustment.

[0126] By monitoring suspended particles in the air (such as dust, PM2.5, etc.), the air quality in front of the display can be evaluated, and then it can be judged whether there is an impact of external pollution on the display effect. Especially in an environment with high pollution or poor air quality, real-time monitoring of air quality is crucial.

[0127] Example 8. This example is an explanatory note in Example 1. Please refer to Figure 1 , specifically, the analysis unit, based on the database and in combination with the local area P in front of the target display, after dimensionless processing, calculates and obtains the natural light interference intensity I through the following formula total :

[0128]

[0129] In the formula, V 1 , V 1 and V 3 are the factor weights of physical coverage, electrostatic adsorption, and optical interference respectively, and V 1 +V 2 +V 3 =1. V 1 , V 2 and V 3 are obtained from historical experience. B 0 represents the initial number of suspended particles, o represents the average area covered by a single suspended particle on the target display, which is obtained by statistically averaging the areas of different-sized particles, MJ represents the total area of the target display, which is obtained according to the size of the target display, and B max represents the maximum number of suspended particles adsorbed by the target display, which is obtained by referring to the product manual and industry standard reference table. The item represents the interference intensity of suspended particles on the target display;

[0130] The following is an example chart of the natural light interference intensity I total :

[0131]

[0132] And the natural light interference intensity I total is evaluated with the second threshold. The second threshold includes the third brightness value L3 and the fourth brightness value L4, where the third brightness value L3 > the fourth brightness value L4;

[0133] When the natural light interference intensity I total > the third brightness value L3, it indicates that the light pollution degree of the natural light in front of the target display exceeds the preset value, resulting in abnormal brightness and color of the target display, and a third correction instruction is generated;

[0134] The fourth brightness value L4 ≤ the natural light interference intensity I total ≤ the third brightness value L3, indicating that the light pollution degree of the natural light in front of the target display does not exceed the preset range, and the brightness and color of the target display are qualified;

[0135] The natural light interference intensity I total<The fourth brightness value L4 indicates that the light pollution degree of the natural light in front of the target display exceeds the preset value, resulting in abnormal brightness and color of the target display, and a fourth correction instruction is generated.

[0136] In this embodiment, by precisely controlling and correcting the interference caused by natural light and suspended particles, it is possible to ensure that the brightness and color of the target display are always maintained within the preset standard range. This directly improves the visual effect of the display, making the color more accurate and the brightness more uniform. The interference of natural light and suspended particles may cause color distortion of the display. By generating correction instructions and performing corresponding adjustments, it is possible to effectively reduce color deviation and ensure that the display presents more real and natural colors. In the case of changes in the environment in front of the display (such as changes in natural light or an increase in particulate matter in the air), the system can make real-time adjustments to ensure that users can obtain the best display effect under any conditions, avoiding discomfort or visual fatigue caused by light pollution or particulate matter interference.

[0137] By precisely adjusting the brightness and color of the display to its optimal state and avoiding unnecessary brightness increase or color adjustment, it helps to save energy. Especially when the interference intensity of natural light is low, the display can appropriately reduce its brightness and reduce energy consumption.

[0138] Embodiment 9. This embodiment is an explanatory note in Embodiment 1. Please refer to Figure 1 , specifically, the third correction instruction includes:

[0139] When the natural light interference intensity I total > the third brightness value L3, and the difference ratio does not exceed 20%, the color ratio is set to 30%, and the corrected brightness ratio Z 1 and the corrected color ratio Y 1 are obtained. The following correction formula is used:

[0140]

[0141] In the formula, represents the difference ratio between the natural light interference intensity I total and the third brightness value L3;

[0142] The fourth correction instruction includes:

[0143] When the natural light interference intensity I total < the fourth brightness value L4, and the difference ratio does not exceed 20%, the color ratio is set to 30%, and the corrected brightness ratio Z 2 and the corrected color ratio Y 2 are obtained. The following correction formula is used:

[0144]

[0145] In the formula, It is expressed as the difference ratio between the natural light interference intensity I total and the fourth luminance value L4.

[0146] The setting of the threshold value is for the convenience of comparison. Regarding the size of the threshold value, it depends on the amount of sample data and the base quantity set by those skilled in the art for each group of sample data; as long as the proportional relationship between the parameter and the quantized value is not affected.

[0147] In this embodiment, by adjusting the brightness and color, the system can correct the color deviation caused by natural light interference, ensure the accuracy of the display color. The correction instruction can effectively adjust the color and brightness deviation caused by natural light interference, ensure the accuracy of the display color and brightness. By automatically correcting the brightness and color, it reduces visual fatigue and discomfort caused by natural light interference or reflected light. By setting a correction ratio not exceeding 20%, it prevents the system from overreacting and causing drastic fluctuations in the display effect. Through this automatic correction process, it can ensure that the target display always performs excellently in the environment, providing a clear and accurate display effect.

[0148] The above formulas are all obtained by collecting a large amount of data for software simulation and selecting a formula close to the true value. The coefficients in the formula are set by those skilled in the art according to the actual situation. As described above, it is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution of the present invention and its inventive concept, makes equivalent substitutions or changes, and should be covered within the protection scope of the present invention.

Claims

1. An environmentally adaptive color and brightness adaptive correction system for digital display devices, characterized in that: include: A first acquisition module, an analysis module, and a second acquisition module; The first acquisition module is used to collect interfering artificial light source data within a radius R1 for a target display and construct an artificial light interference data set; The analysis module is used to analyze the artificial light interference data set and obtain the total intensity Q of the artificial light interference light of n interference light sources in the interference monitoring area. total , generating a first correction instruction and a second correction instruction; The second acquisition module is used to collect natural light. For the target display, the real-time natural light intensity gzd and the real-time reflected light intensity fsd are collected to obtain the natural light interference intensity I total , and build a database to generate a third correction instruction and a fourth correction instruction.

2. The color and brightness adaptive correction system for an environment-adaptive digital display device according to claim 1, characterized in that: The first acquisition module includes an interference area division unit and an interference source acquisition unit; The interference area division unit is used to collect the location information of the interference light source device, use the GPS positioning system to locate the target display, obtain a three-dimensional map, and in the three-dimensional map, a circular area with a radius of R1 meter with the target display as the center is set as an interference monitoring area, and the radius R1 is set to 10-15m; The interference source collection unit is used to collect interference light source equipment in the interference monitoring area, and the interference light source equipment includes: commercial advertising screens, store sign lights, car light sources, drone lights, lamp post landscape lighting and emergency signal lights; It is also used to collect the brightness value L of the i-th interference light source device in the interference monitoring area through the brightness sensor. i , where i = 1, 2, ..., n represents the total number of interfering light source devices in the interference monitoring area, x i ,y i , z i is the coordinates of the ith interfering light source device in the three-dimensional space on the x-axis, y-axis and z-axis, integrated into the three-dimensional map; The timer is used to collect the lighting time of the i-th interfering light source device in the j-th lighting period. is the starting time of the i-th interfering light source device in this time period, is the end time of the i-th interfering light source device in the time period; the lighting time of the i-th interfering light source device in the j-th lighting time period The formula is as follows:

3. The color and brightness adaptive correction system for an environment-adaptive digital display device according to claim 2, characterized in that: The artificial light interference data set includes: the brightness value L of the i-th interference light source device i , the lighting time of the i-th interfering light source device in the j-th lighting time period The distance d from the i-th interfering light source to the target display i and the cross-interference area A of the i-th interfering light source device in time period j ij .

4. The color and brightness adaptive correction system for an environment-adaptive digital display device according to claim 3, characterized in that: The analysis module includes an artificial light interference unit in the interference monitoring area and a light source cross-interference unit in the interference monitoring area, wherein the light source cross-interference unit in the interference monitoring area is used to construct an overlapping area S on the target display of the i-th interference light source and the i-1-th interference light source in the interference monitoring area. i ∩S i-1 ; Overlap area S i ∩S i-1 Obtained through the following calculation formula; In the formula, represents the illumination area of ​​the i-th interference source device, It is represented as the illumination area of ​​the i-1th interference light source device adjacent to the i-th interference light source device, and φ is represented as the angle between the i-th interference light source device and the i-1th interference light source device adjacent to the i-1th interference light source device; According to the overlapping area S of the target display of the i-th interference light source and the i-1-th interference light source in the interference monitoring area i ∩S i-1 After dimensionless processing, the light source cross interference area A in the interference monitoring area is calculated by the following formula: ij ; In the formula, S i represents the illumination area of ​​the i-th interference source, n represents the total number of interference light source devices in the interference monitoring area, S i-1 represents the illumination area of ​​the i-1th interfering light source device adjacent to the i-th interfering light source device, (S i ∩S i-1 ) represents the overlapping area of ​​illumination between the ith interfering light source device and the adjacent (i-1)th interfering light source device.

5. The color and brightness adaptive correction system for an environment-adaptive digital display device according to claim 4, characterized in that: The artificial light interference unit in the interference monitoring area is used to calculate the total intensity Q of the artificial light interference light in the interference monitoring area after dimensionless processing based on the artificial light interference data set by the following formula: total ; Where n represents the total number of interference light source devices in the interference monitoring area, m represents the illumination time period of the interference source, and L i represents the brightness of the i-th light source, T iJ A represents the lighting time of the i-th interfering light source device in the j-th time period, ij represents the cross-interference area in time period j, θ i represents the angle between the i-th interfering light source device and the target display, cos(θ i ) represents the direction of the light source of the i-th interfering light source device, O i It is expressed as the occlusion coefficient; And the total intensity of artificial light interference light Q total Evaluate with a first threshold, the first threshold includes a first brightness value L1 and a second brightness value L2, the first brightness value L1> the second brightness value L2; Total intensity of artificial light interference light Q total >The first brightness value L1 indicates that the light pollution level in the interference monitoring area exceeds the preset allowable range, resulting in color deviation and brightness abnormality of the target display, and generates a first correction instruction; The second brightness value L2≤the total intensity of artificial light interference light Q total ≤ the first brightness value L1, the light pollution level in the interference monitoring area does not exceed the preset allowable range, and the color deviation and brightness of the target display are qualified; Total intensity of artificial light interference light Q total The second brightness value L2 indicates that the light pollution level in the interference monitoring area exceeds the preset allowable range, the color deviation and brightness of the target display are abnormal, and a second correction instruction is generated.

6. The color and brightness adaptive correction system for an environment-adaptive digital display device according to claim 5, characterized in that: The first correction instruction includes: Total intensity of artificial light interference light Q total >First brightness value L1, calculate the first difference ratio and set the adjustment ratio to no more than 20%, the color ratio to 30%, and calculate the first brightness correction ratio A1 and the first color correction ratio B1 by the following formula: In the formula, Indicates the total intensity of artificial light interference light Q total A first difference ratio with the first brightness value L1; The second correction instruction includes: Total intensity of artificial light interference light Q total < the second brightness value L2, calculate the second difference ratio and set the adjustment ratio to no more than 20%, the color ratio to 30%, and calculate the second brightness correction ratio A2 and the second color correction ratio B2 by the following formula: In the formula, Indicates the total intensity of artificial light interference light Q total A second difference ratio with respect to the second brightness value L2.

7. The color and brightness adaptive correction system for an environment-adaptive digital display device according to claim 6, characterized in that: The second collection module includes a natural light collection unit, a suspended particle collection unit and an analysis unit; The natural light source collection unit is used to collect the illumination intensity of natural light, install an ambient light sensor and a reflection sensor on the target display, and collect the real-time illumination intensity gzd of natural light and the real-time reflected light intensity fsd; The suspended particle collection unit is used to install a dust monitor in front of the target display to collect suspended particle data and build a database by combining the real-time natural light intensity gzd and the real-time reflected light intensity fsd; The distance w in front of the target display is collected, and the distance w in front is used as the radius to obtain the local area P in front of the target display through the following formula: Where C is the degree of the local center angle, measured by an angle sensor.

8. The color and brightness adaptive correction system for an environment-adaptive digital display device according to claim 7, characterized in that: The analysis unit calculates the natural light interference intensity I by the following formula based on the database and the local area P in front of the target display after dimensionless processing. total : Where V1, V1 and V3 are the weights of physical coverage, electrostatic adsorption and optical interference, respectively, and V1+V2+V3=1. V1, V2 and V3 are obtained based on historical experience. B0 represents the initial number of suspended particles, o represents the average area covered by a single suspended particle on the target display, which is obtained by counting the average area of ​​particles of different sizes, MJ represents the total area of ​​the target display, which is obtained based on the size of the target display, and B max Indicates the maximum number of suspended particles adsorbed by the target display, obtained through product manuals and industry standard reference tables The term represents the interference intensity of suspended particles on the target display; And the natural light interference intensity I total Evaluate with a second threshold, the second threshold includes a third brightness value L3 and a fourth brightness value L4, the third brightness value L3> the fourth brightness value L4; When the natural light interference intensity I total > A third brightness value L3, indicating that the light pollution degree of natural light in front of the target display exceeds a preset value, resulting in abnormal brightness and color of the target display, and generating a third correction instruction; When the fourth brightness value L4 ≤ the natural light interference intensity I total ≤ the third brightness value L3, indicating that the light pollution degree of the natural light in front of the target display does not exceed the preset range, and the brightness and color of the target display are qualified; Natural light interference intensity I total The fourth brightness value L4 indicates that the light pollution degree of the natural light in front of the target display exceeds the preset value, resulting in abnormal brightness and color of the target display, and a fourth correction instruction is generated.

9. The color and brightness adaptive correction system for an environment-adaptive digital display device according to claim 8, characterized in that: The third correction instruction includes: When the natural light interference intensity I total >For the third brightness value L3, the difference ratio does not exceed 20%, the color ratio is set to 30%, and the corrected brightness ratio Z1 and the corrected color ratio Y1 are obtained, using the following correction formula: In the formula, Expressed as the natural light interference intensity I total A difference ratio with the third brightness value L3; The fourth correction instruction includes: When the natural light interference intensity I total <The fourth brightness value L4, the difference ratio does not exceed 20%, the color ratio is set to 30%, and the corrected brightness ratio Z2 and the corrected color ratio Y2 are obtained, using the following correction formula: In the formula, Expressed as the natural light interference intensity I total The difference ratio with the fourth brightness value L4.

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