CN104589969A - Digital video anti-dazzle windshield of automobile - Google Patents
Digital video anti-dazzle windshield of automobile Download PDFInfo
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- CN104589969A CN104589969A CN201410697597.XA CN201410697597A CN104589969A CN 104589969 A CN104589969 A CN 104589969A CN 201410697597 A CN201410697597 A CN 201410697597A CN 104589969 A CN104589969 A CN 104589969A
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Abstract
The invention provides a digital video anti-dazzle windshield of an automobile, and belongs to the field of anti-dazzle technologies. In order to reduce the harmful effect on a driver of the automobile by lamplight of automotive headlamps on the opposite travelling line when automobiles meet at night, the following technical measures are taken, a liquid crystal screen (1) and a camera (2) are installed on the automobile (3), the camera (2) is connected with a digital video processing circuit, the digital video processing circuit is connected with the liquid crystal screen (1), and the liquid crystal screen (1) is composed of a plurality of independent pixels. The digital video anti-dazzle windshield has the advantages that as the camera (2) is installed on the automobile, image positions of the lamplight of the automotive headlamps on the opposite travelling line are captured; the pixels of corresponding points of the liquid crystal screen (1) on the automobile are controlled through signals output by the digital video processing circuit, the transparency of the pixels of the corresponding points of the liquid crystal screen are reduced, or the pixels become opaque, and the luminous flux of the lamplight, reaching the eyes through the liquid crystal screen, of the automotive headlamps on the opposite travelling line is weakened or blocked and cannot be irradiated to the driver.
Description
Technical field
The invention belongs to a field of no-glare technology.
Background technology
There were the friends of driving experience at night all can have such experience, when running car on the road not having street lamp with opposite lane on travel in automobile meeting time, federation, is made oneself to can't see whatever except to except quad headlight light on eyes by its strong headlight light-illuminating.In this case, if the other side at this moment change beat low lamp (low beam) situation can be quite a lot of.Even but can not deal with problems like this, because still can send strong light to the automobile on upper thread, driver still can be made not see the road surface road conditions of periphery, just situation slightly takes a turn for the better.Cause the reason of these phenomenons to be: the eyes of people are when being subject to strong illumination, and the reaction of brain is the pupil contraction of instruction eyes, the light quantity entering eyeball is reduced, so just make human eye cannot see dark thing under high light; The people understanding eye structure knows, pupil is just as the aperture in photographic camera.According to thinking that the control of diaphragm of machine the light quantity entering photographic camera.Too, it also control and enters eyeball and arrive amphiblestroid light quantity the function of the pupil of human eye.Owing to being driving at night, the reflected light on road surface is natively very faint.At this moment, in order to see the situation on road surface clearly, brain instruction pupil is opened very large, and object allows more light enter eyeball, and the sensitivity of eyes increases.At this moment the ability accepting high light also increases.During nighttime meeting, after eyes are subject to high light stimulation, the reaction of brain is exactly shrink pupil, makes the light quantity entering eyes remain on rational level, so that eyes can adapt to the environment of high light.That time of nighttime meeting, when the strong light-illuminating of opposite Der Scheinwerfer mit FernlichtAbblendlichtStandlicht is come, the strong contraction of pupil, the light quantity making the reflected light on the road surface of this lane and the reflected light of surrounding environment enter eyes also reduces greatly.Result is that driver be cannot see whatever except the automobile headlamp light of opposite.This situation is not having street lamp, particularly even more serious when intermountain path up train.A lot of traffic accident occurs all under these circumstances.Obviously, this is the most stalwart chief culprit of harm night travel safety.
In prior art, except being provided with distance-light and arranging on automobile, do not have the generation that more effective measure prevents from dazzling the eyes.And the effect that the height of distance-light is put is also very limited, just than slightly not better, it is also poor far that distance eliminates this harm.On the other hand, a lot of people, when nighttime meeting, does not conveniently use passing light, and the effectiveness of this setting is had a greatly reduced quality especially.Even if driver employs passing light meeting, that can not eliminate headlight light dazzles the eyes phenomenon.So, can not eliminate this technology and product of dazzling the eyes phenomenon preferably in prior art.
Summary of the invention
In order to make driver when nighttime meeting, the automobile headlamp light that can reduce on the lane of opposite produces the harmful effect dazzle the eyes to Ben Che driver, the present invention gets and has adopted following technical measures: before automobile 3, install liquid crystal display 1, automobile 3 is installed camera 2, camera 2 connects digital video processing circuit, and digital video processing circuit connects liquid crystal display 1; Described liquid crystal display 1 is made up of multiple independently pixel, and described digital video processing circuit includes computing machine.
The benefit done like this is: by being contained in the one or more cameras 2 on automobile, catches opposite lane and to get on the car the position of image of headlight light.By computing machine according to the eyes of camera, driver and liquid crystal display three to phase position, after analytical calculation is carried out to image, obtain opposite lane and to get on the car the light of headlight path when arriving driver's eyeball through liquid crystal display 1 and the intersection point of liquid crystal display.The pixel of the corresponding point (above-mentioned intersection point) of liquid crystal display 1 on the signal control automobile simultaneously exported by digital video processing circuit, make the attenuating or opaque of the diaphaneity of the pixel of these corresponding point on liquid crystal display, make the get on the car light of headlight of upper thread is arrived to the light quantity of eyes by liquid crystal display and weakens or block, make it weaken or can not directive driver.Like this, use Ben Che driver of the present invention when meeting, pupil is the strong contraction because high light stimulates no longer, makes Ben Che driver at this moment still can see the road conditions of own circumference clearly.On the other hand, the present invention can play the generation preventing sunshine direct projection or reflection from dazzling the eyes situation equally when driving a vehicle in the daytime, can play the effect improving traffic safety equally.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention
In figure: liquid crystal display 1, camera 2, automobile 3.
Detailed description of the invention
In order to when nighttime meeting, can prevent or alleviate dazzle the eyes generation, reduce opposite lane and to get on the car the harmful effect that headlight light produces driver, the present invention gets and has adopted following technical measures: before automobile 3, install liquid crystal display 1, automobile 3 is installed camera 2, camera 2 connects digital video processing circuit, digital video processing circuit connects liquid crystal display 1, and described liquid crystal display 1 is made up of multiple independently pixel, and described digital video processing circuit includes computing machine.Windshield is the configuration of each automobile indispensability, and it is the important tool of printing opacity of keeping out the wind, and is the important window that driver sees road surface clearly.But the dazzling light be harmful to traffic safety injects the eyeball of driver too by Windshield.It can thus be appreciated that the Windshield under prior art does not have selective power to light, it can not the entering of blocking harmful light.Before Windshield is, particularly the only way which must be passed of this car is entered to the get on the car light of headlight of upper thread.So, if Windshield can in due course, suitable position is opaque or translucently just can weaken or block the eyeball that dazzling light harmful on the lane of opposite enters driver.According to such thinking, the present invention the Windshield on existing automobile is replaced by be made up of multiple pixel, the liquid crystal display 1 of controllable transparency.And camera 2 is installed on automobile for catching the position of Der Scheinwerfer mit FernlichtAbblendlichtStandlicht.The quantity of camera 2 by one or more, can be arranged by different seizure accuracy requirements.Meanwhile, camera 2 is connected digital video processing circuit, then control liquid crystal display 1 by digital video processing circuit.Described word video processing circuits includes computing machine.Described liquid crystal display is made up of multiple pixel (the liquid crystal smaller screen point of independent controllable transparency).
Principle of work of the present invention: we know, the reason of meeting Ben Che driver's pupil contraction in season is exactly the light of opposite Der Scheinwerfer mit FernlichtAbblendlichtStandlicht.These light are a point or multiple point in the visual field of Ben Che driver, and scope is very little, but very harmful.Prove by experiment, if we cover these luminous points, just can eliminate the reason of pupil contraction during Ben Che driver's meeting, make Ben Che driver can see the road conditions of periphery clearly when meeting; From light path, to the eyeball of the Windshield of the Der Scheinwerfer mit FernlichtAbblendlichtStandlicht on upper thread, this car and driver all on the same line.If one " valve " can be filled just when needed, can be weakened or block the headlight light of directive eyeball and the high light in other directions on the appropriate location of Windshield.For this reason, the present invention changes common Windshield into and to be made up of multiple pixel and can the liquid crystal display of break-make light (controlled whether transparent).The light leading to eyeball is controlled by the whether transparent of liquid crystal display.So just can realize the light path controlling to lead to driver's eyes.But automobile on the way travels, the automobile of one's own side is dynamic, and the automobile of other party is also dynamic.Der Scheinwerfer mit FernlichtAbblendlichtStandlicht relative high-speed mobile especially, how in case of a dynamic basis, follow the tracks of block opposite Der Scheinwerfer mit FernlichtAbblendlichtStandlicht directive Ben Che driver light this be a great problem.The difficulty of this difficult problem is its light path position constantly change at a high speed.More difficult, how accurately can block the light path to upper thread Der Scheinwerfer mit FernlichtAbblendlichtStandlicht directive Ben Che driver in dynamically, and don't affect the light path of other directions road reflection Xiang Benche driver eyes, this is a larger technical barrier.For head it off, the present invention is provided with one or more camera 2 on automobile.Catch with camera and affect the position of the intense light source (such as Der Scheinwerfer mit FernlichtAbblendlichtStandlicht) of traffic safety, then go out the light path of high light directive driver and the intersection point of liquid crystal display by computing machine according to the position calculation of the eyes of driver, liquid crystal display and intense light source.And controlled the diaphaneity of the upper pixel of corresponding point (above-mentioned intersection point) on liquid crystal display or block this light path according to the size of this intersection point and intense light source by computing machine again.So it just can just keep off toward the light to upper thread Der Scheinwerfer mit FernlichtAbblendlichtStandlicht directive Ben Che driver.On liquid crystal display, other places of non-headlight light image still keep transparent.So just can eliminate the factor of meeting driver's pupil contraction in season, not affect driver observation surface conditions again.
Can certainly relatively simply the visual field center line of camera and driver's visual field center line be forward adjusted in the same way, and the field range of suitably both adjustment, camera is photographed and the image of headlight light of getting on the car to upper thread in liquid crystal screen display, be just aligned in and joining on the path of Ben Che driver's eyeball and liquid crystal display is injected to upper thread headlight light of getting on the car.In other words, the light path just injecting driver's eyeball with automobile headlamp light at the image of the automobile headlamp light of liquid crystal screen display exactly overlaps on liquid crystal display.At this moment, as long as be negative-appearing image (liquid crystal pixel is translucent or opaque) by the Image Adjusting of liquid crystal screen display, so it just can just keep off toward the light to upper thread Der Scheinwerfer mit FernlichtAbblendlichtStandlicht directive Ben Che driver.On liquid crystal display, other places of non-headlight light image still keep transparent.So just can eliminate the factor of meeting driver's pupil contraction in season, not affect driver observation surface conditions again.
Structurally, the present invention has taken numeral or analog video treatment circuit processes the vision signal that camera exports, and digital video processing circuit includes computing machine.By these video processing circuits, light image and the position of Der Scheinwerfer mit FernlichtAbblendlichtStandlicht in image can be found out, and shield the lower road surface image of other brightness, avoid these images to transport to sight line that liquid crystal display affects driver.That is the signal of video signal of headlight light is isolated in the image taken at camera with numeral or analog video treatment circuit, and by computing machine according to camera, driver's eyes and liquid crystal display three to phase position, after analytical calculation is carried out to image, obtain opposite lane and to get on the car the light of headlight path when arriving driver's eyeball through liquid crystal display 1 and the intersection point of liquid crystal display.The pixel of the corresponding point (above-mentioned intersection point) of liquid crystal display 1 on the signal control automobile simultaneously exported by digital video processing circuit or analog video treatment circuit, to make on liquid crystal display the negative-appearing image of the image of the headlight after machine process as calculated (diaphaneity low or opaque image), screen outside headlight image is transparent, does not affect the sight line of driver.The light quantity of light that the light of getting on the car headlight to upper thread like this arrives eyes by liquid crystal display weakens or blocks.Use Ben Che driver of the present invention when meeting, pupil is the strong contraction because high light stimulates no longer, makes Ben Che driver at this moment still can see the road conditions of own circumference clearly.Go to control liquid crystal display with this signal, the circuit that can reach these effects is a lot, such as, and digital video processing circuit.First Digitized Transform is carried out to the analog video signal that camera exports, then with computing machine, these digital video signals are processed, the high-brightness signal of what taking-up amplitude was large represent headlight light, shielding processing is done for the low brightness signal representing road surface scenery, then the signal handled well is delivered to liquid crystal display, show negative-appearing image by liquid crystal display and just can realize better stopping the object to upper thread automobile headlamp light.The technological means such as analogue video signal processing circuit, filter in addition that is above-mentioned or energy can be realized.
Claims (1)
1. the anti-dazzle paravent of Digital Automobile video, mainly comprise liquid crystal display (1), camera (2) and digital video processing circuit, it is characterized in that: liquid crystal display (1) is installed before automobile (3), automobile (3) is installed camera (2), camera (2) connects digital video processing circuit, digital video processing circuit connects liquid crystal display (1), and described liquid crystal display (1) is made up of multiple independently pixel, and described digital video processing circuit includes computing machine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410697597.XA CN104589969A (en) | 2014-11-26 | 2014-11-26 | Digital video anti-dazzle windshield of automobile |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410697597.XA CN104589969A (en) | 2014-11-26 | 2014-11-26 | Digital video anti-dazzle windshield of automobile |
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| CN104589969A true CN104589969A (en) | 2015-05-06 |
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| CN201410697597.XA Withdrawn CN104589969A (en) | 2014-11-26 | 2014-11-26 | Digital video anti-dazzle windshield of automobile |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106601198A (en) * | 2016-11-03 | 2017-04-26 | 京东方科技集团股份有限公司 | Anti-vertigo display device, control method thereof and window |
| CN107776371A (en) * | 2016-08-31 | 2018-03-09 | 李海锋 | The method and apparatus of automobile intelligent non-glare treated |
| CN108428428A (en) * | 2018-03-26 | 2018-08-21 | 京东方科技集团股份有限公司 | A kind of intelligent window and its control method, the vehicles |
| CN108583237A (en) * | 2018-03-23 | 2018-09-28 | 广州市微龙电子科技有限公司 | Automobile intelligent electronic anti-dazzle system and control method |
| CN111739193A (en) * | 2020-06-17 | 2020-10-02 | 重庆蓝岸通讯技术有限公司 | Automobile data recorder image display method and automobile data recorder |
| DE102020213919A1 (en) | 2020-11-05 | 2022-05-05 | Volkswagen Aktiengesellschaft | Vision control system for a vehicle |
| CN114666488A (en) * | 2020-12-23 | 2022-06-24 | 京东方科技集团股份有限公司 | Dimming method and device of shading assembly, shading assembly and vehicle |
| CN114994966A (en) * | 2021-03-02 | 2022-09-02 | 通用汽车环球科技运作有限责任公司 | Display and light-blocking screen |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107776371A (en) * | 2016-08-31 | 2018-03-09 | 李海锋 | The method and apparatus of automobile intelligent non-glare treated |
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| WO2019184414A1 (en) * | 2018-03-26 | 2019-10-03 | 京东方科技集团股份有限公司 | Smart window and control method thereof and transportation vehicle |
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| CN111739193A (en) * | 2020-06-17 | 2020-10-02 | 重庆蓝岸通讯技术有限公司 | Automobile data recorder image display method and automobile data recorder |
| DE102020213919A1 (en) | 2020-11-05 | 2022-05-05 | Volkswagen Aktiengesellschaft | Vision control system for a vehicle |
| CN114666488A (en) * | 2020-12-23 | 2022-06-24 | 京东方科技集团股份有限公司 | Dimming method and device of shading assembly, shading assembly and vehicle |
| CN114994966A (en) * | 2021-03-02 | 2022-09-02 | 通用汽车环球科技运作有限责任公司 | Display and light-blocking screen |
| CN114994966B (en) * | 2021-03-02 | 2024-04-23 | 通用汽车环球科技运作有限责任公司 | Display and light blocking screen |
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Application publication date: 20150506 |