Method for automatically adjusting light transmittance of windshield by detecting illumination intensity

Abstract

The invention relates to the technical field of illumination intensity adjustment, in particular to a method for automatically adjusting the light transmittance of a windshield by detecting the illumination intensity, and the method comprises the steps: collecting the illumination intensity of dimming glass of an automobile through an illumination intensity sensor, and then carrying out the cleaning and filtering of the collected data through an automobile machine main control system; the algorithm program extracts the illumination intensity value of the data through a machine learning algorithm, the extracted illumination intensity value is compared with a preset illumination intensity threshold value, and if the extracted illumination intensity value is larger than the preset illumination intensity threshold value, the voltage of the dimming glass is reduced by controlling the intelligent power supply; if the extracted illumination intensity value is equal to a preset illumination intensity threshold value, the light transmittance of the dimming glass is kept in the current situation, and if the extracted illumination intensity value is smaller than the preset illumination intensity threshold value, the voltage of the dimming glass is increased by controlling the intelligent power supply, and the light transmittance of the dimming glass is increased at the moment.

Description

Technical Field

[0001] The present invention relates to the technical field of light intensity regulation, and particularly relates to a method for detecting light intensity and automatically adjusting the light transmittance of a windshield. Background Art

[0002] Light intensity, abbreviated as illuminance, refers to the energy of visible light received per unit area. The unit is usually lux (Lux or lx). It is a physical quantity that measures the strength of light and the degree to which the surface area of an object is illuminated. Light intensity also has a significant impact on human visual comfort and work efficiency. Excessive light may cause eye fatigue and discomfort, while insufficient light may affect the performance of fine work such as reading and writing. Reasonable light intensity adjustment helps to improve the comfort and efficiency of human activities.

[0003] However, during the driving of a vehicle, external strong light in different situations may be encountered, such as strong sunlight or the high beam of a vehicle. These factors can stimulate the driver's eyes and thus affect the safety of driving a vehicle. Summary of the Invention

[0004] The purpose of the present invention is to provide a method for detecting light intensity and automatically adjusting the light transmittance of a windshield, so as to solve the problem in the prior art that during the driving of a vehicle, external strong light in different situations may be encountered, such as strong sunlight or the high beam of a vehicle, and these factors can stimulate the driver's eyes and thus affect the safety of driving a vehicle.

[0005] To achieve the above purpose, the present invention provides a method for detecting light intensity and automatically adjusting the light transmittance of a windshield. The method for detecting light intensity and automatically adjusting the light transmittance of a windshield includes the following steps:

[0006] S1: Collect the light intensity of the dimming glass of the vehicle through a light intensity sensor, and send the collected data to the vehicle-mounted main control system;

[0007] S2: Subsequently, the vehicle-mounted main control system cleans and filters the collected data, and sends the processed data to the algorithm program;

[0008] S3: The algorithm program extracts the light intensity value of the data through a machine learning algorithm, and compares the extracted light intensity value with a preset light intensity threshold;

[0009] S4: If the extracted light intensity value is greater than the preset light intensity threshold, it indicates strong light. Subsequently, the voltage of the dimming glass is reduced by controlling the intelligent power supply, and at this time, the light transmittance of the dimming glass decreases;

[0010] S5: If the extracted light intensity value is equal to the preset light intensity threshold, it indicates that the light is moderate. At this time, the light transmittance of the dimming glass remains unchanged.

[0011] S6: If the extracted light intensity value is less than the preset light intensity threshold, it indicates that the light is weak. Subsequently, the voltage of the dimming glass is increased by controlling the intelligent power supply. At this time, the light transmittance of the dimming glass increases.

[0012] Among them, in step S1, the dimming glass has a first gradient region, a second gradient region, and a third gradient region.

[0013] Among them, in step S1, the light intensity sensors are arranged at the first gradient region, the second gradient region, and the third gradient region.

[0014] Among them, in step S3, the machine learning algorithm is one or a combination of more than one of linear regression, decision tree, random forest, and neural network.

[0015] Among them, in step S4, when the voltage of the dimming glass decreases, the arrangement of liquid crystal molecules in the electric field becomes relatively disordered, hindering the passage of light, so the light transmittance of the dimming glass decreases.

[0016] Among them, in step S5, when the voltage of the dimming glass remains unchanged, the arrangement state of liquid crystal molecules in the electric field is relatively stable, so the light transmittance of the dimming glass does not change at all.

[0017] Among them, in step S6, when the voltage of the dimming glass increases, the liquid crystal molecules will be arranged more orderly under the action of the electric field, and the light passes more smoothly, so the light transmittance of the dimming glass is enhanced.

[0018] A method for detecting light intensity and automatically adjusting the light transmittance of a windshield. The method collects the light intensity of the dimming glass of the vehicle through a light intensity sensor, and sends the collected data to the vehicle main control system. Subsequently, the vehicle main control system cleans and filters the collected data, and sends the processed data to an algorithm program. The algorithm program extracts the light intensity value of the data through a machine learning algorithm, and compares the extracted light intensity value with a preset light intensity threshold. If the extracted light intensity value is greater than the preset light intensity threshold, it indicates strong light. Subsequently, the voltage of the dimming glass is reduced by controlling the intelligent power supply. At this time, the light transmittance of the dimming glass decreases. If the extracted light intensity value is equal to the preset light intensity threshold, it indicates moderate light. At this time, the light transmittance of the dimming glass remains unchanged. If the extracted light intensity value is less than the preset light intensity threshold, it indicates weak light. Subsequently, the voltage of the dimming glass is increased by controlling the intelligent power supply. At this time, the light transmittance of the dimming glass increases. In this way, the technical problem that during the driving of a vehicle, external strong light in different situations, such as strong sunlight or the high beam of a vehicle, will stimulate the driver's eyes and thus affect the safety of driving the vehicle is effectively solved. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0020] Figure 1 is a flowchart of the steps of the method for detecting light intensity and automatically adjusting the light transmittance of a windshield provided by the present invention. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0021] The following will describe in detail the embodiments of the present invention. The examples of the embodiments are shown in the drawings, where the same or similar reference numerals indicate the same or similar elements or elements with the same or similar functions from beginning to end. The embodiments described below with reference to the drawings are exemplary and are intended to explain the present invention, but should not be construed as limiting the present invention.

[0022] Please refer to Figure 1 , the present invention provides a method for detecting light intensity and automatically adjusting the light transmittance of a windshield. The method for detecting light intensity and automatically adjusting the light transmittance of a windshield includes the following steps:

[0023] S1: Collect the light intensity of the dimming glass of the vehicle through a light intensity sensor, and send the collected data to the vehicle main control system;

[0024] S2: Subsequently, the in-vehicle main control system cleans and filters the collected data, and sends the processed data to the algorithm program;

[0025] S3: The algorithm program extracts the light intensity value of the data through a machine learning algorithm, and compares the extracted light intensity value with a preset light intensity threshold;

[0026] S4: If the extracted light intensity value is greater than the preset light intensity threshold, it indicates strong light. Subsequently, the intelligent power supply is controlled to reduce the voltage of the dimming glass, and at this time, the light transmittance of the dimming glass decreases;

[0027] S5: If the extracted light intensity value is equal to the preset light intensity threshold, it indicates moderate light. At this time, the light transmittance of the dimming glass remains unchanged;

[0028] S6: If the extracted light intensity value is less than the preset light intensity threshold, it indicates weak light. Subsequently, the intelligent power supply is controlled to increase the voltage of the dimming glass, and at this time, the light transmittance of the dimming glass increases.

[0029] In this embodiment, through the cooperation of the light intensity sensor, the algorithm program and the in-vehicle main control system, the automatic adjustment of the light transmittance of the dimming glass is realized, which improves the driving comfort and safety. And the algorithm program can make more accurate and intelligent adjustment decisions according to the change of light intensity. At the same time, the preset light intensity threshold can be adjusted according to the actual situation to adapt to different environments and driving needs. This design realizes the automatic adjustment of the light transmittance of the dimming glass through intelligent, precise and adaptive means, improves the driving comfort and safety, and also has a certain energy-saving effect.

[0030] Among them, in step S1, the dimming glass has a first gradient area, a second gradient area and a third gradient area. Through the settings of the first gradient area, the second gradient area and the third gradient area, the light transmittance of the dimming glass can be adjusted more finely to adapt to the light intensity changes in different areas.

[0031] Among them, in step S1, light intensity sensors are arranged at the first gradient area, the second gradient area and the third gradient area. Through multiple light intensity sensors, the light intensity data in different areas can be collected more accurately, providing more accurate information for subsequent adjustment, and ensuring that each important area of the dimming glass can be effectively monitored for light intensity.

[0032] Among them, in step S3, the machine learning algorithm is one or a combination of linear regression, decision tree, random forest, and neural network. Through the machine learning algorithm, useful information can be extracted from a large amount of data, and more accurate predictions and decisions can be made. As the data accumulates, the algorithm can be continuously optimized and adjusted to adapt to more complex and changeable environments.

[0033] Among them, in step S4, when the voltage of the dimming glass decreases, the arrangement of liquid crystal molecules in the electric field becomes relatively disordered, hindering the passage of light, so the light transmittance of the dimming glass decreases.

[0034] Among them, in step S5, when the voltage of the dimming glass remains unchanged, the arrangement state of liquid crystal molecules in the electric field is relatively stable, so the light transmittance of the dimming glass does not change at all.

[0035] Among them, in step S6, when the voltage of the dimming glass increases, the liquid crystal molecules will be arranged more orderly under the action of the electric field, and the light passes more smoothly, so the light transmittance of the dimming glass increases.

[0036] In the present invention, by controlling the change of voltage, the arrangement state of liquid crystal molecules can be precisely adjusted, so as to achieve precise control of the light transmittance of the dimming glass. The orderly arrangement and disorderly arrangement of liquid crystal molecules can respectively improve the light transmittance and privacy protection performance of the dimming glass. At the same time, when high light transmittance is not required, the energy consumption can be reduced by lowering the voltage.

[0037] In the present invention, when the light intensity sensor or the algorithm program fails, the vehicle-mounted main control system can obtain the weather condition of the day in real time when connected to the network. The weather condition is sunny, cloudy, and rainy. If it is sunny, it controls the intelligent power supply to appropriately reduce the voltage of the dimming glass. At this time, the light transmittance of the dimming glass decreases. If it is cloudy or rainy, it controls the intelligent power supply to appropriately increase the voltage of the dimming glass. At this time, the light transmittance of the dimming glass increases. Through the above settings, the system will not completely fail, but can use the weather information as an alternative input to continue to adjust the dimming glass.

[0038] In the present invention, the light intensity of the dimming glass of the vehicle is collected by a light intensity sensor, and the collected data is sent to the vehicle main control system. Subsequently, the vehicle main control system cleans and filters the collected data, and sends the processed data to an algorithm program. The algorithm program extracts the light intensity value of the data through a machine learning algorithm, and compares the extracted light intensity value with a preset light intensity threshold. If the extracted light intensity value is greater than the preset light intensity threshold, it indicates strong light. Subsequently, the voltage of the dimming glass is reduced by controlling the intelligent power supply. At this time, the light transmittance of the dimming glass decreases. If the extracted light intensity value is equal to the preset light intensity threshold, it indicates moderate light. At this time, the light transmittance of the dimming glass remains unchanged. If the extracted light intensity value is less than the preset light intensity threshold, it indicates weak light. Subsequently, the voltage of the dimming glass is increased by controlling the intelligent power supply. At this time, the light transmittance of the dimming glass increases.

[0039] The above-disclosed is only a preferred embodiment of the present invention. Of course, it cannot be used to limit the scope of the rights of the present invention. Those of ordinary skill in the art can understand all or part of the processes of implementing the above embodiments, and the equivalent changes made according to the claims of the present invention still fall within the scope covered by the invention.

Claims

1. A method for automatically adjusting the light transmittance of a windshield by detecting light intensity, characterized in that: The steps include: S1: The light intensity of the dimming glass of the car is collected through the light intensity sensor, and the collected data is sent to the main control system of the vehicle; S2: The vehicle main control system then cleans and filters the collected data and sends the processed data to the algorithm program; S3: The algorithm program extracts the light intensity value of the data through a machine learning algorithm, and compares the extracted light intensity value with a preset light intensity threshold; S4: If the extracted light intensity value is greater than a preset light intensity threshold, it indicates that the light intensity is strong, and then the voltage of the dimming glass is reduced by controlling the intelligent power supply, and the light transmittance of the dimming glass decreases; S5: If the extracted light intensity value is equal to the preset light intensity threshold, it indicates that the light is moderate, and the light transmittance of the switchable glass remains the same; S6: If the extracted light intensity value is less than the preset light intensity threshold, it indicates that the light is weak, and then the voltage of the dimming glass is increased by controlling the intelligent power supply, and the light transmittance of the dimming glass is increased.

2. The method for automatically adjusting the light transmittance of a windshield by detecting light intensity as claimed in claim 1, characterized in that: In step S1, the switchable glass has a first gradient zone, a second gradient zone and a third gradient zone.

3. The method for automatically adjusting the light transmittance of a windshield by detecting light intensity as claimed in claim 2, characterized in that: In step S1, the light intensity sensors are disposed at the first gradual change area, the second gradual change area, and the third gradual change area.

4. The method for automatically adjusting the light transmittance of a windshield by detecting light intensity as claimed in claim 3, characterized in that: In step S3, the machine learning algorithm is one or more combinations of linear regression, decision tree, random forest, and neural network.

5. The method for automatically adjusting the light transmittance of a windshield by detecting light intensity as claimed in claim 4, characterized in that: In step S4, when the voltage of the dimming glass is reduced, the arrangement of the liquid crystal molecules in the electric field becomes relatively disordered, which hinders the passage of light, and the light transmittance of the dimming glass decreases.

6. The method for automatically adjusting the light transmittance of a windshield by detecting light intensity as claimed in claim 5, characterized in that: In step S5, when the voltage of the dimming glass remains unchanged and the arrangement state of the liquid crystal molecules in the electric field is relatively stable, the transmittance of the dimming glass does not change.

7. The method for automatically adjusting the light transmittance of a windshield by detecting light intensity as claimed in claim 6, characterized in that: In step S6, when the voltage of the dimming glass increases, the liquid crystal molecules will be arranged more orderly under the action of the electric field, and the light will pass through more smoothly, so the light transmittance of the dimming glass is enhanced.

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