Car film filtering degree adjusting system and method based on electrochromic film

Abstract

The invention discloses a vehicle film filtering degree adjusting system based on an electrochromic film, the electrochromic film is installed on a front windshield of a vehicle, and the system comprises a first acquisition module used for acquiring illumination intensity data in real time; the second acquisition module is used for acquiring a driver behavior image in real time; the control instruction module is used for setting an illumination intensity threshold value, judging whether the sunlight illumination intensity collected in real time exceeds the threshold value or not, further judging whether the filtering degree of the electrochromic film needs to be adjusted or not, and issuing a luminosity adjusting instruction; the processor is further used for analyzing driver behaviors according to the behavior recognition model, judging whether the filtering degree of the electrochromic film needs to be adjusted or not and issuing a luminosity adjusting instruction; and the filtering adjustment module is used for adjusting the filtering degree of the electrochromic film according to the luminosity adjustment instruction. The invention further discloses a vehicle film filtering degree adjusting method based on the electrochromic film. The driving safety is improved by adjusting the filtering degree of the vehicle film.

Description

Technical Field

[0001] The present invention relates to a vehicle film light filtration degree adjustment system and method based on an electrochromic film. Background Art

[0002] The vehicle film on the front windshield of an automobile, usually called an automotive solar film, is a thin film material specially designed to adhere to the front windshield of an automobile. This thin film has multiple functions. Its main function is to reduce the direct sunlight during the day and the visual interference caused by the lights of oncoming vehicles at night, so as to reduce the eye fatigue of the driver in a strong light environment, make the driver's field of vision clearer, and improve driving safety.

[0003] In some embodiments, the light filtration effect of the vehicle film on the front windshield of an automobile is fixed. When the sunlight intensity changes during the day, the vehicle film on the front windshield of the automobile cannot adaptively filter light according to the visual preference of the driver, and at night, the vehicle film on the front windshield will affect the driver's driving line of sight, easily cause visual fatigue of the driver, and reduce driving safety.

[0004] Therefore, a vehicle film light filtration degree adjustment system and method based on an electrochromic film are provided. Summary of the Invention

[0005] The purpose of the present invention is to provide a vehicle film light filtration degree adjustment system and method based on an electrochromic film to overcome the existing defects, and improve driving safety by adjusting the light filtration degree of the vehicle film.

[0006] The technical solution to achieve the above purpose is as follows: A vehicle film light filtration degree adjustment system based on an electrochromic film according to one aspect of the present invention installs an electrochromic film on the front windshield of an automobile, including: A first acquisition module for real-time acquisition of light intensity data; A second acquisition module for real-time acquisition of driver behavior images; A control instruction module for setting a light intensity threshold, determining whether the real-time acquired sunlight intensity exceeds the threshold, and then determining whether it is necessary to adjust the light filtration degree of the electrochromic film, and issuing a light filtration adjustment instruction; It is also used to analyze the driver behavior according to the behavior recognition model, determine whether it is necessary to adjust the light filtration degree of the electrochromic film, and issue a light filtration adjustment instruction; A light filtration adjustment module for adjusting the light filtration degree of the electrochromic film according to the light filtration adjustment instruction.

[0007] Preferably, in the first acquisition module, an optical sensor is installed on the front windshield for real-time acquisition of sunlight intensity.

[0008] Preferably, in the second acquisition module, a camera is installed in the vehicle for real-time acquisition of driver behavior images.

[0009] Preferably, the control instruction module includes: A threshold setting unit for setting light intensity thresholds, including a first light intensity threshold, a second light intensity threshold, and a third light intensity threshold; A data receiving unit for receiving the acquired light intensity and the driver's face image; A first instruction issuing unit for comparing the acquired light intensity with the light intensity thresholds. When the acquired light intensity is lower than the first light intensity threshold, a first adjustment instruction is issued; when the acquired light intensity is between the first light intensity threshold and the second light intensity threshold, no adjustment instruction is issued; when the acquired light intensity is higher than the second light intensity threshold, a second adjustment instruction is issued.

[0010] Preferably, the control instruction module further includes: An image analysis unit for constructing a behavior recognition model and analyzing and judging the acquired driver behavior through the behavior recognition model. The driver behavior includes a first type of behavior and a second type of behavior; A second instruction issuing unit for issuing a first adjustment instruction when the analyzed driver behavior is the first type of behavior, and issuing a second adjustment instruction when the analyzed driver behavior is the second type of behavior.

[0011] Preferably, in the image analysis unit, the first type of behavior represents reducing the light transmittance of the electrochromic film, and the second type of behavior represents increasing the light transmittance of the electrochromic film.

[0012] Preferably, in the light filtering adjustment module, when the first adjustment instruction is received, it proves that the external light intensity is weak, and then the light transmittance of the electrochromic film is reduced; when the second adjustment instruction is received, it proves that the external light intensity is strong, and then the light transmittance of the electrochromic film is increased.

[0013] A method for adjusting the light transmittance of a vehicle film based on an electrochromic film according to the second aspect of the present invention includes: Step S1, real-time acquisition of the solar light intensity through a light sensor installed on the front windshield; Step S2, setting light intensity thresholds, including a first light intensity threshold, a second light intensity threshold, and a third light intensity threshold; Step S3, judging whether the real-time acquired solar light intensity exceeds the threshold, and then judging whether it is necessary to adjust the light transmittance of the electrochromic film; Step S4, when the acquired light intensity is lower than the first light intensity threshold, a first adjustment instruction is issued; Step S5, when the collected light intensity is between the first light intensity threshold and the second light intensity threshold, no adjustment instruction is issued; Step S6, when the collected light intensity is higher than the second light intensity threshold, the second adjustment instruction is issued; Step S7, when the first adjustment instruction is received, the light transmittance of the electrochromic film is lowered; Step S8, when the second adjustment instruction is received, the light transmittance of the electrochromic film is increased.

[0014] Preferably, it further includes: Step S9, when the light sensor is damaged, the driver takes actions, and the real-time image of the driver's actions is collected through the camera installed in the vehicle; Step S10, analyze the driver's actions according to the constructed action recognition model, and judge whether the driver's actions are the first type of actions or the second type of actions; Step S11, if it is analyzed that the driver's actions are the first type of actions, the first adjustment instruction is issued, and if it is analyzed that the driver's actions are the second type of actions, the second adjustment instruction is issued; Step S12, when the first adjustment instruction is received, the light transmittance of the electrochromic film is lowered; Step S13, when the second adjustment instruction is received, the light transmittance of the electrochromic film is increased.

[0015] The beneficial effect of the present invention is that through the dual insurance of the light sensor and the camera, when the light sensor fails, the light transmittance of the electrochromic film can be adjusted through the driver's actions, so that the adjusted light transmittance of the car film can meet the driving needs of the driver, improving driving comfort and safety. Description of the Drawings

[0016] Figure 1 is a module diagram of a car film light transmittance adjustment system based on an electrochromic film of the present invention; Figure 2 is a specific module diagram of the control instruction module in the present invention; Figure 3 is a flowchart of a car film light transmittance adjustment method based on an electrochromic film of the present invention; Figure 4 is another flowchart of a car film light transmittance adjustment method based on an electrochromic film of the present invention. Detailed Embodiments

[0017] The technical solution of the present invention will be clearly and completely described below with reference to the accompanying drawings. In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings. These are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present invention. In addition, the terms "first", "second", "third" are only used for descriptive purposes and should not be construed as indicating or implying relative importance.

[0018] The present invention will be further described below with reference to the accompanying drawings.

[0019] The light filtering effect of the car front windshield film is fixed. When the sunlight intensity changes during the day, the car front windshield film cannot adaptively filter light according to the driver's visual preference. And at night, the front windshield film will affect the driver's driving vision, easily causing the driver's visual fatigue and reducing driving safety.

[0020] To solve the above problems, in actual situations, it is necessary to wear sunglasses when the sunlight is extremely strong during the day, which is very inconvenient for drivers who already wear glasses. Even if the sunglasses are clipped on the frame, the double-layer lenses will also affect the vision. At night when the light is dim, in order to avoid the driving vision being affected, it may be necessary to remove the film, but the installation and disassembly will cause inconvenience to the driver's operation.

[0021] Therefore, an electrochromic film is installed on the car front windshield, and a car film light transmittance adjustment system and method based on the electrochromic film are provided.

[0022] As Figure 1 shown, a car film light transmittance adjustment system based on an electrochromic film, an electrochromic film is installed on the car front windshield, including: a first acquisition module 1, a second acquisition module 2, a control instruction module 3, and a light filtering adjustment module 4.

[0023] The first acquisition module 1 is used to collect light intensity data in real time.

[0024] In an embodiment, a light sensor is installed on the front windshield to collect the sunlight intensity in real time.

[0025] The second acquisition module 2 is used to collect the driver's behavior images in real time.

[0026] In an embodiment, a camera is installed inside the vehicle to collect the driver's behavior images in real time.

[0027] The control instruction module 3 is used to set the light intensity threshold, determine whether the real-time collected solar light intensity exceeds the threshold, and then determine whether it is necessary to adjust the light transmittance of the electrochromic film, and issue a light intensity adjustment instruction. It is also used to analyze the driver's behavior based on the behavior recognition model, determine whether it is necessary to adjust the light transmittance of the electrochromic film, and issue a light intensity adjustment instruction. As Figure 2 shown, the control instruction module 3 includes: a threshold setting unit 31, a data receiving unit 32, a first instruction issuing unit 33, a first instruction issuing unit 33, and a second instruction issuing unit 35.

[0028] The threshold setting unit 31 is used to set the light intensity threshold, including a first light intensity threshold, a second light intensity threshold, and a third light intensity threshold.

[0029] The data receiving unit 32 is used to receive the collected light intensity and the driver's face image.

[0030] The first instruction issuing unit 33 is used to compare the collected light intensity with the light intensity threshold. When the collected light intensity is lower than the first light intensity threshold, a first adjustment instruction is issued; when the collected light intensity is between the first light intensity threshold and the second light intensity threshold, no adjustment instruction is issued; when the collected light intensity is higher than the second light intensity threshold, a second adjustment instruction is issued.

[0031] The image analysis unit 34 is used to construct a behavior recognition model and analyze and judge the collected driver behavior through the behavior recognition model. The driver behavior includes a first type of behavior and a second type of behavior.

[0032] In the embodiment, the first type of behavior represents lowering the light transmittance of the electrochromic film, and the second type of behavior represents increasing the light transmittance of the electrochromic film.

[0033] The second instruction issuing unit 35 is used to issue a first adjustment instruction when analyzing that the driver behavior is the first type of behavior, and issue a second adjustment instruction when analyzing that the driver behavior is the second type of behavior.

[0034] The light filter adjustment module 4 is used to adjust the light transmittance of the electrochromic film according to the light intensity adjustment instruction.

[0035] In the embodiment, when the first adjustment instruction is received, it proves that the external light intensity is weak, and then the light transmittance of the electrochromic film is lowered; when the second adjustment instruction is received, it proves that the external light intensity is strong, and then the light transmittance of the electrochromic film is increased.

[0036] As Figure 3 shown, a method for adjusting the light transmittance of a vehicle film based on an electrochromic film includes: Step S1, the light intensity of sunlight is collected in real time by a light sensor installed on the front windshield.

[0037] Step S2, set light intensity thresholds, including a first light intensity threshold, a second light intensity threshold, and a third light intensity threshold.

[0038] Step S3, determine whether the light intensity of sunlight collected in real time exceeds the threshold, and further determine whether it is necessary to adjust the light transmittance of the electrochromic film.

[0039] Step S4, when the collected light intensity is lower than the first light intensity threshold, issue a first adjustment instruction.

[0040] Step S5, when the collected light intensity is between the first light intensity threshold and the second light intensity threshold, no adjustment instruction is issued.

[0041] Step S6, when the collected light intensity is higher than the second light intensity threshold, issue a second adjustment instruction.

[0042] Step S7, when the first adjustment instruction is received, lower the light transmittance of the electrochromic film.

[0043] Step S8, when the second adjustment instruction is received, increase the light transmittance of the electrochromic film.

[0044] As Figure 4 shown, a method for adjusting the light transmittance of a vehicle film based on an electrochromic film further includes: Step S9, when the light sensor is damaged, the driver makes a behavior, and the driver behavior image is collected in real time by a camera installed in the vehicle.

[0045] Step S10, analyze the driver behavior according to the constructed behavior recognition model, and determine whether the driver behavior is a first type of behavior or a second type of behavior.

[0046] Step S11, if it is analyzed that the driver behavior is a first type of behavior, issue a first adjustment instruction; if it is analyzed that the driver behavior is a second type of behavior, issue a second adjustment instruction.

[0047] Step S12, when the first adjustment instruction is received, lower the light transmittance of the electrochromic film.

[0048] Step S13, when the second adjustment instruction is received, increase the light transmittance of the electrochromic film.

[0049] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements on some or all of the technical features; and these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A vehicle film filter adjustment system based on electrochromic film, characterized in that: Installing electrochromic film on the front windshield of the car includes: The first acquisition module is used to collect light intensity data in real time; The second acquisition module is used to acquire driver behavior images in real time; The control command module is used to set the light intensity threshold, determine whether the real-time collected sunlight intensity exceeds the threshold, and then determine whether the filter degree of the electrochromic film needs to be adjusted, and issue a light intensity adjustment command; It is also used to analyze the driver's behavior according to the behavior recognition model, determine whether the light filtering degree of the electrochromic film needs to be adjusted, and issue light adjustment instructions; The light filtering adjustment module is used to adjust the light filtering degree of the electrochromic film according to the light intensity adjustment instruction.

2. The vehicle film filter adjustment system based on electrochromic film according to claim 1, characterized in that: In the first acquisition module, a light sensor is installed on the front windshield to collect sunlight intensity in real time.

3. The vehicle film filter adjustment system based on electrochromic film according to claim 1, characterized in that: In the second acquisition module, a camera is installed in the car to acquire driver behavior images in real time.

4. The vehicle film filter adjustment system based on electrochromic film according to claim 1, characterized in that: The control instruction module comprises: A threshold setting unit, used to set a light intensity threshold, including a first light intensity threshold, a second light intensity threshold and a third light intensity threshold; A data receiving unit, used for receiving the collected light intensity and the driver's facial image; The first instruction issuing unit is used to compare the collected light intensity with the light intensity threshold. When the collected light intensity is lower than the first light intensity threshold, a first adjustment instruction is issued; when the collected light intensity is between the first light intensity threshold and the second light intensity threshold, no adjustment instruction is issued; when the collected light intensity is higher than the second light intensity threshold, a second adjustment instruction is issued.

5. The vehicle film filter adjustment system based on electrochromic film according to claim 4, characterized in that: The control instruction module further includes: An image analysis unit, used to construct a behavior recognition model, and to analyze and judge the collected driver behaviors through the behavior recognition model, where the driver behaviors include first-category behaviors and second-category behaviors; The second instruction issuing unit is used to issue a first adjustment instruction when the driver's behavior is analyzed to be a first type of behavior, and to issue a second adjustment instruction when the driver's behavior is analyzed to be a second type of behavior.

6. The vehicle film filter adjustment system based on electrochromic film according to claim 5, characterized in that: In the image analysis unit, the first type of behavior represents lowering the filter degree of the electrochromic film, and the second type of behavior represents raising the filter degree of the electrochromic film.

7. The vehicle film filter adjustment system based on electrochromic film according to claim 5, characterized in that: In the filter adjustment module, when a first adjustment instruction is received, it proves that the external light intensity is weak, and the filter degree of the electrochromic film is lowered; when a second adjustment instruction is received, it proves that the external light intensity is strong, and the filter degree of the electrochromic film is increased.

8. A method for adjusting the light filtering degree of a vehicle film based on an electrochromic film, characterized in that: include: Step S1, collecting sunlight intensity in real time through a light sensor installed on the front windshield; Step S2, setting light intensity thresholds, including a first light intensity threshold, a second light intensity threshold, and a third light intensity threshold; Step S3, determining whether the real-time collected sunlight intensity exceeds a threshold, and then determining whether the filter degree of the electrochromic film needs to be adjusted; Step S4, when the collected light intensity is lower than a first light intensity threshold, a first adjustment instruction is issued; Step S5, when the collected light intensity is between the first light intensity threshold and the second light intensity threshold, no adjustment instruction is issued; Step S6, when the collected light intensity is higher than a second light intensity threshold, a second adjustment instruction is issued; Step S7, when receiving the first adjustment instruction, lowering the filter degree of the electrochromic film; Step S8, when the second adjustment instruction is received, the filter degree of the electrochromic film is increased.

9. A method for adjusting the light filtering degree of a vehicle film based on an electrochromic film according to claim 8, characterized in that: Also includes: Step S9, when the optical sensor is damaged, the driver performs a behavior, and a camera installed in the vehicle collects an image of the driver's behavior in real time; Step S10, analyzing the driver's behavior according to the constructed behavior recognition model, and determining whether the driver's behavior is the first type of behavior or the second type of behavior; Step S11, if the driver's behavior is analyzed to be the first type of behavior, a first adjustment instruction is issued, and if the driver's behavior is analyzed to be the second type of behavior, a second adjustment instruction is issued; Step S12, when receiving the first adjustment instruction, lowering the filter degree of the electrochromic film; Step S13, when receiving the second adjustment instruction, increasing the filter degree of the electrochromic film.

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