CN209505400U - A dynamic louver type anti-glare sun visor system - Google Patents

Abstract

The utility model provides a dynamic shutter type anti-dazzle sun shield system, which comprises a dynamic shutter, wherein the control input end of the dynamic shutter is connected with a control system, and the signal input end of the control system is connected with a human eye position detection module and a driving front detection module; the dynamic louver comprises a shading support, wherein x independent rotating shading modules are arranged in the shading support side by side, x is an integer greater than or equal to 2, each independent rotating shading module comprises a rotary driving motor, the electric input end of each rotary driving motor is the control input end of the dynamic louver, the output end of each rotary driving motor is coaxially fixed with a rotating shaft, and shading blades are fixed on the rotating shaft. The utility model discloses a horizontal banding shading blade shelters from, can effectively match people's eye and far-reaching headlamp and shelter from hi-lite light, can provide enough big clear field of vision for the driver when realizing effective shading anti-dazzle.

Description

A dynamic louver type anti-glare sun visor system

technical field

The utility model relates to a sun visor system, in particular discloses a dynamic louver type anti-glare sun visor system.

Background technique

Glare will affect the sight of car drivers. The slight consequence is visual fatigue, and when it is severe, it will cause the driver to be completely unable to see the vehicles and pedestrians on the road. Common glare includes the low-angle sun, the light-emitting surface of street lights at night and the high beams of oncoming vehicles.

For the anti-glare of the high beam lights of oncoming vehicles, there are methods such as transparent liquid crystal (LCD), transparent OLED or liquid crystal glass (also called dimming glass, also called PDLC), which can be embedded in the front windshield or It is used as a sun visor in two ways, the common problem is low transmittance, the transmittance of transparent LCD screen is less than 30%, and the transmittance of transparent OLED is less than 45%, that is, the brightness of other normal fields of view will be significantly weakened; The transmittance can reach 75%, but it has a certain degree of haze, and the vision is not clear enough. In addition, the dimming glass has an atomization effect after being electrified. While blocking glare, there will be a lot of stray light that interferes with the vision. For low-angle sun glare, the sun visor that comes with the car can basically solve the problem, but when the sun angle is too low and close to the horizontal line, the large field of vision will be blocked while using the sun visor. The existing technology provides A louver-type car sun visor. The blades are set at a fixed angle to block sunlight. Although the human eye can observe the road ahead through the gaps between the blades, the viewing angle between the blades is very small, and the field of view in the distance will be blocked. . If the pixel-based light adjustment method is adopted, due to the existence of the pixel control circuit, there will be an obvious sense of lattice, forming a screen door effect, which will affect the driver's field of vision.

Utility model content

Based on this, it is necessary to address the existing technical problems and provide a dynamic louver type anti-glare sun visor system, which has excellent anti-glare performance and can provide a driver with a large enough clear field of view.

In order to solve the problems in the prior art, the utility model discloses a dynamic louver type anti-glare sun visor system, which includes a dynamic louver, the control input end of the dynamic louver is connected to a control system, and the signal input end of the control system is connected to a human eye position detection module and the detection module in front of the vehicle;

The dynamic shutter includes a shading bracket, and x independent rotating shading modules are arranged side by side in the shading bracket, x is an integer greater than or equal to 2, and the independent rotating shading module includes a rotating drive motor, and the electrical input end of the rotating drive motor is the control input end of the dynamic shutter. The output end of the rotary drive motor is coaxially fixed with a rotating shaft, which is rotatably connected to the shading bracket through a bearing, and shading blades are fixed on the rotating shaft.

Further, the width of the shading blade is h, where h≥2mm.

Further, the shading blade is a neutral gray filter.

Further, the light transmittance of the shading blade is 1/64.

Further, the maximum rotation angle of the shading blade is 10 degrees.

Further, the human eye position detection module is an infrared camera, and the driving front detection module is a highlight camera.

Further, the signal input end of the control system is also connected with an active opening module.

The beneficial effects of the utility model are as follows: the utility model discloses a dynamic louver-type anti-glare sun visor system, and the dynamic louver-type anti-glare structure is set as a light shield, which can effectively ensure the transmittance and clarity of the windshield; Since human eyes are parallel binoculars and high beam lights are also parallel double lights, horizontal strip-shaped shading blades are used for shading, which can effectively match human eyes and high beam lights to block high-brightness light, and has excellent and reliable anti-glare performance; While achieving effective shading and anti-glare, it can provide the driver with a large enough clear field of vision, which can effectively improve the safety of driving.

Description of drawings

Fig. 1 is the structural representation of the utility model.

Fig. 2 is a schematic diagram of application scenarios of the present invention.

Fig. 3 is a schematic diagram of the structure of the dynamic shutter in the non-glare state of the present invention.

Fig. 4 is a schematic structural diagram of the dynamic shutter in the glare state of the present invention.

Fig. 5 is a schematic diagram of the side view structure of the dynamic shutter in the utility model.

Reference numerals are: dynamic shutter 10, shading bracket 11, independently rotating shading module 12, rotating drive motor 121, rotating shaft 122, shading blade 123, control system 20, human eye position detection module 30, driving front detection module 40 1. Actively turn on the module 50 .

Detailed ways

In order to further understand the features, technical means, and specific objectives and functions of the utility model, the utility model will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

Refer to Figures 1 to 5.

The embodiment of the utility model discloses a dynamic louver type anti-glare sun visor system, as shown in Figure 1, including a dynamic louver 10, the control input end of the dynamic louver 10 is connected to a control system 20, and a data processing module is arranged in the control system 20 , the signal input end of the control system 20 is connected to the human eye position detection module 30 and the driving front detection module 40, the human eye position detection module 30 is set towards the driver, and the driving front detection module 40 is set towards the driving direction;

The dynamic shutter 10 includes a shading bracket 11, as shown in Figure 4, the human eye position detection module 30 and the detection module 40 in front of the vehicle are fixed on the shading bracket 11, x independent rotating shading modules 12 are arranged side by side in the shading bracket 11, independent The rotating shading modules 12 are arranged side by side up and down, x is an integer greater than or equal to 2, and the independently rotating shading modules 12 include a rotary drive motor 121, which is fixed on the shading bracket 11. Preferably, the rotary drive motor 121 is a servo motor, which rotates The electric input end of the drive motor 121 is the control input end of the dynamic shutter 10, the output end of the rotary drive motor 121 is coaxially fixed with a rotating shaft 122, the rotating shaft 122 is rotationally connected with the shading bracket 11 through a bearing, and the shading bracket 11 is fixed on the rotating shaft 122. The blade 123 is rotated by the driving motor 121 through the rotating shaft 122 to drive the shading blade 123 to rotate.

The embodiment of the utility model also discloses a shading method for a dynamic louver-type anti-glare sun visor system. Using any of the above-mentioned dynamic louver-type anti-glare sun visor systems sequentially includes the following steps:

A. In the initial state, as shown in FIG. 3 , all the shading blades 123 are parallel to the horizontal plane, that is, the shading blades 123 give way to human eyes, and the human eyes can observe the road width ahead through a sufficiently large gap between the shading blades 123 ;

B. The detection module 40 in front of the vehicle is turned on, and the control system 20 obtains the brightness P in front of the vehicle;

C. The threshold brightness set by the control system 20 is Q, preferably, Q=10000nit, the brightness of 10000nit is slightly larger than the brightness of the brightest rear brake light at night, when P≥Q, proceed to the subsequent step B, otherwise return to step A ;

D. The human eye position detection module 30 is turned on, the control system 20 obtains the position of the human eye, and judges the angle β that the shading blade 123 needs to rotate according to the position of the human eye, and the control system 20 drives the shading blade 123 to rotate by the angle β through the rotating drive motor 121 Realize light blocking, as shown in Figure 2 and Figure 4.

Preferably, in step D, β=d*θ/h, preferably, β is less than or equal to 10 degrees, d is the distance between the human eye position detection module 30 and the human eye, d is detected by the human eye position detection module 30, θ is the angle between the glare light source and the detection module 40 in front of the vehicle, θ is detected by the detection module 40 in front of the vehicle, h is the width of the shading blade 123, also called the height of the shading blade 123; θ=FOV*n/N, FOV is the horizontal field of view of the detection module 40 in front of the vehicle, n is the number of horizontal pixels of the glare light source in the CMOS of the detection module 40 in front of the vehicle, N is the total number of horizontal pixels in the CMOS of the detection module 40 in front of the vehicle, The data collection is simple, the amount of adjustment calculation is small, the light blocking effect is good and the effectiveness is strong.

Preferably, in step D, the image acquired by the human eye position detection module 30 is divided into x regions from top to bottom, preferably, the division method is equal division, and the human eye position detection module 30 detects that the human eye Located in the yth area, 0<y<x, the control system 20 drives the yth independent rotating shading module 12 to realize light blocking, and the independently rotating shading module 12 also counts from top to bottom to adjust for a specific human eye height position The corresponding shading blade 123 rotates to block the light, so that the high-brightness light source entering the human eye can be blocked just right, and the other blades are in the non-glare mode, that is, the other blades are parallel to the horizontal plane, thereby effectively improving the clear vision without shading and glare pollution. Set the number x of divided areas of the human eye position detection module 30 and the number x of independently rotating light-shielding modules 12 according to requirements, set the width of the commonly used light-shielding plate as H, that is, the height when blocking light is H, H/h=x, h≥2mm, the larger x is, the higher the adjustment accuracy is, and the greater the driver's unobstructed line of sight will be.

The utility model sets the dynamic louver type anti-glare structure as a light shield, which can effectively ensure the transmittance and clarity of the windshield; since the human eyes are parallel binoculars and the high beam is also a parallel double lamp, the horizontal strip The shading blades 123 are used for shading, which can effectively match human eyes and high beams to block high-brightness light, and has excellent and reliable anti-glare performance; in addition, the light-shielding state can be changed according to the parameters of the glare light source, which is effective in achieving effective shading and anti-glare. At the same time, it can provide the driver with a large enough clear field of vision, which can effectively improve the safety of driving.

In this embodiment, the width of the shading blade 123 is h, h≧2 mm, ensuring that a single shading blade 123 can fully and effectively shield high-brightness light from entering human eyes.

In this embodiment, the shading blade 123 is a neutral gray filter, which can reduce the brightness of the glare light source to the comfort level of the human eye, instead of completely shielding it. The neutral gray filter is also called neutral gray filter or ND. The filter is a colorless to recycled photographic filter. The ideal neutral density filter can attenuate the brightness of all wavelengths of light without color cast.

Based on the above embodiment, the light transmittance of the light-shielding blade 123 is 1/64, preferably, the light-shielding blade 123 adopts ND64.

In this embodiment, the maximum rotation angle of the shading blade 123 is 10 degrees.

In this embodiment, the human eye position detection module 30 is an infrared camera, and the driving front detection module 40 is a high-brightness camera. its performance.

In this embodiment, the signal input end of the control system 20 is also connected with an active opening module 50, the active opening module 50 is used for the user to actively adjust the state of the dynamic shutter 10, and the user can actively open it when necessary during the day. The dynamic shutter 10 blocks light.

The above-mentioned embodiments only express several implementations of the utility model, and the description thereof is relatively specific and detailed, but it should not be construed as limiting the patent scope of the utility model. It should be noted that those skilled in the art can make several modifications and improvements without departing from the concept of the utility model, and these all belong to the protection scope of the utility model. Therefore, the scope of protection of the utility model patent should be based on the appended claims.

Claims (7)

1. a kind of dynamic venetian blind type anti-dazzle sun shield system, which is characterized in that including dynamic shutter (10), the dynamic The control signal of shutter (10) is connected with control system (20), and the signal input part of the control system (20) connects someone Eye position detecting module (30) and driving front detecting module (40)；

The dynamic shutter (10) includes shading bracket (11), has x independent rotation to hide in the shading bracket (11) side by side Optical module (12), x are the integer more than or equal to 2, and independent rotation antiglare module (12) includes rotary drive motor (121), The electrical input of the rotary drive motor (121) is the control signal of the dynamic shutter (10), the rotation driving The output end of motor (121) is coaxially fixed with rotation axis (122), and the rotation axis (122) passes through bearing and the shading bracket (11) it is rotatablely connected, is fixed with cover blade (123) on the rotation axis (122).

2. a kind of dynamic venetian blind type anti-dazzle sun shield system according to claim 1, which is characterized in that the shading The width of blade (123) is h, h >=2mm.

3. a kind of dynamic venetian blind type anti-dazzle sun shield system according to claim 1, which is characterized in that the shading Blade (123) is neutral gray scale filter.

4. a kind of dynamic venetian blind type anti-dazzle sun shield system according to claim 3, which is characterized in that the shading The light transmittance of blade (123) is 1/64.

5. a kind of dynamic venetian blind type anti-dazzle sun shield system according to claim 1, which is characterized in that the shading The maximum rotation angle of blade (123) is 10 degree.

6. a kind of dynamic venetian blind type anti-dazzle sun shield system according to claim 1, which is characterized in that the human eye Position detecting module (30) is thermal camera, and detecting module (40) is highlighted video camera in front of the driving.

7. a kind of dynamic venetian blind type anti-dazzle sun shield system according to claim 1, which is characterized in that the control The signal input part of system (20) is also connected with active opening module (50).