CN1854815A - Intelligent dazzle-resisting method and its device - Google Patents
Intelligent dazzle-resisting method and its device Download PDFInfo
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- CN1854815A CN1854815A CN 200510049669 CN200510049669A CN1854815A CN 1854815 A CN1854815 A CN 1854815A CN 200510049669 CN200510049669 CN 200510049669 CN 200510049669 A CN200510049669 A CN 200510049669A CN 1854815 A CN1854815 A CN 1854815A
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Abstract
An intelligent dazzle proof method includes collecting outside light by light sensing unit, processing collected data by data processing chip for confirming position of strong light source according to light intensity threshold preset in said data processing unit, carrying out light filtering operation by filtering unit based on control signal, collecting signal by dazzle proof shooting tube according to processing result of filtering unit and outputting it on screen. The device for realizing said method is also disclosed.
Description
Technical field
The present invention relates to the safe driving field, especially relate to the structural improvement of a kind of intelligent dazzle-resisting method and device thereof.
Background technology
Dazzle divides direct projection dazzle and reflected glare, the glare phenomenon of seeing when night, the driver drove a vehicle is because the intensity of light reflection that the headlight of this car shines the road surface is too little with ratio to the direct light intensity of quad headlight, make stronger light be incident to human eye, make on the retina of eyes photosensory cell that should source imaging, make the myosis of eyes suppress the signal of the corresponding dark background imaging of photosensory cell around, human eye is not seen or cannot see brightless background around the high light.
When driving at night, particularly during meeting, for the driver, the opposite dazzle that headlight produced of sending a car is very dangerous.Because this discomfort glare makes the driver can't see the road conditions of front clearly, it is the direct or indirect reason that a lot of traffic hazards take place.This also is a difficult problem that always perplexs the driver.For fear of this high light, the driver who has has used sunglasses to prevent dazzle.Though this has died down high light, sunglasses have also weakened the light from other scenery except that car light simultaneously, and so, the driver still can't see the road surface situation of front clearly.
For this reason, people have carried out long-term exploration, have proposed diversified embodiment.For example Chinese patent literature discloses a kind of antiglare equipment (application number: 90104564.0), be made up of stationary installation, shadow shield and coupling arrangement.Coupling arrangement stretches forward from the side of stationary installation, and shadow shield is fixed on a side of user's eyes, and shadow shield is from an eyes deflection center line far away, and this device is also set up and is placed on user's front diaphragm at the moment.A side that shadow shield is inclined in user's eyes had so both covered the strong dazzle that the setting sun is come, and did not hinder user's normal line of sight again.But this apparatus structure is comparatively complicated, and the less stable of work in case shadow shield is slightly offset the sight line that will influence the user, not only can't play the effect that prevents dazzle, but also may cause dangerous generation.The antiglare equipment of somebody invention must just have anti-dazzle function being equipped with between the car of this device, in case wherein there is one not have installation just can't realize anti-dazzle function.
The somebody has applied for a kind of method for preventing glare of vehicle light and two-dimension lamp (application number: 94100740.5), its method is to set up illuminating lamp on vehicle, to illuminate near the road surface of car side, glare phenomenon is obviously weakened, improve the road lighting condition of driving at night effectively.The reflective mirror of two-dimension lamp by concave mirror, level crossing, convex mirror by the particular form combination, make light that its filament sends respectively on surface level ahead running body direction launch and in the vertical direction to the road surface irradiation near the car side, the security of raising driving at night.Though this method and apparatus can play the effect that weakens dazzle to a certain extent, its effect and not obvious, security performance is not high yet, still is difficult to the generation of avoiding dangerous.In addition, owing to only rely on modes such as the reflection of light and refraction, the precision of its work is difficult to the level that reaches higher.
Summary of the invention
The present invention solves the existing in prior technology driving at night because dazzle makes human eye not see or cannot see brightless background around the high light easily, causes the technical matters of the existence etc. of potential safety hazard; Provide a kind of simple in structure, prevented that glare effect is obvious, motor vehicle anti-glare method that security performance is high and device thereof.
The present invention has simultaneously solved the existing in prior technology complex structure again, and Installation and Debugging are loaded down with trivial details, and the cost of manufacture height uses very convenient etc. technical matters; Provide a kind of being convenient to install, cost is low, motor vehicle anti-glare method easy to use and device thereof.
The present invention has solved also simultaneously that the existing in prior technology operating accuracy is not high, and the processing power of light is lower, and automaticity is low, and integrated level is lower, and structure is the technical matters of compactness etc. very not; A kind of precision height is provided, and processing power is strong, the automaticity height, and integrated level is higher, the motor vehicle anti-glare method of compact conformation and device thereof.
Above-mentioned technical matters of the present invention is mainly solved by following technical proposals: the intelligent dazzle-resisting device, comprise photosensitive device, the data processing equipment that links to each other with photosensitive device, it is characterized in that linking to each other with filtering apparatus at described data processing equipment, described filtering apparatus links to each other with display device; Described data processing equipment comprises video frequency processing chip.Photosensitive device obtains the information of extraneous light luminance, and video frequency processing chip obtains the resulting brightness data of photosensitive device.And carry out comparing, thereby determine the work of filtering apparatus with predefined threshold values data according to the data that obtain.Reservation threshold wherein can the people for adjusting, to reach best effects.The light at high light place is significantly weakened, and carried out the blast compensation through the decreased light of scenery around the Flame Image Process simultaneously.So, it is high-visible that scenery on every side just can become, but just the road pavement situation is very clear for the driver, greatly reduces the danger of driving at night.
As preferably, described photosensitive device system is made up of positioning shooting head and the optical filter of being located at its place ahead; Described filtering apparatus system is made up of anti-dazzle camera and the liquid crystal that is in the light that links to each other with video frequency processing chip of being located at its place ahead.Optical filter here and positioning shooting head can be made as one.
As another kind of scheme, described photosensitive device is to be made up of the photoelectric sensing dot matrix; Described filtering apparatus system is made up of anti-dazzle camera and the liquid crystal that is in the light that links to each other with data processing equipment of being located at its place ahead.
Adopt video frequency processing chip can realize signal Processing easily.The chip here can adopt use always at present some multiple.In order to reach the high processing effect, cost of manufacture is lower simultaneously, and as preferably, described video frequency processing chip is FPGA or DSP or EPLD.Adopt video frequency processing chip can reduce the volume of equipment effectively, make structure more compact.For the ease of the personalization of design, video frequency processing chip also can be ASIC.
In order to reach effect preferably, as preferably, the axis almost parallel of the axis of described positioning shooting head and anti-dazzle camera.
As preferably, described positioning shooting head and anti-dazzle camera are located at respectively on the support body, and both are isolated by anti-dazzling screen; The positioning shooting head is located in the cone-shaped cavity, and described positioning shooting head and optical filter are at a distance of 2mm～30mm.Camera is located at the infringement that can avoid dust, impurity etc. that camera lens is caused in the cavity, guarantees antiglare effect.Anti-dazzling screen can be got rid of the phase mutual interference of light.
As preferably, the described liquid crystal that is in the light is the dot lcd screen, and its contrast is not less than 20: 1.Because the brightness at intense light source place and the brightness of surrounding environment scenery have very big contrast, after according to the threshold values of default brightness the position of intense light source being determined, data processing equipment will utilize be in the light liquid crystal dot matrix on the liquid crystal of the positional information control of the intense light source that obtains here, make some point on the liquid crystal that is in the light become more light tight, make the more lighttight liquid crystal dots on the liquid crystal that is in the light just can block intense light source.
Because the anti-dazzle camera dark images of gathering in actual application and produce cross light line, as preferably, described anti-dazzle camera is provided with the light correcting unit.In order to the signal that collects is revised.
Intelligent dazzle-resisting method is characterized in that comprising the steps:
A. signals collecting: utilize photosensitive device to gather extraneous light;
B. data processing: handle by data processing chip according to the data that photosensitive device collects, to determine the position of intense light source;
C. filter to handle: the position of the intense light source of judging according to predefined light intensity threshold values in the data processing equipment, realize the operation that filters according to control signal by filtering apparatus;
D. show: by anti-dazzle camera collection signal, and on display screen, export according to the result of filtering apparatus.
As preferably, described optical filtering is handled and is comprised the steps:
A. judge the position of intense light source according to data processing step, the correspondence position of the retrieval light source position and the liquid crystal dots that is in the light;
B. according to the corresponding liquid crystal dots of the liquid crystal that is in the light that obtains, control the penetrability step-down of corresponding liquid crystal dots.
Corresponding relation between the liquid crystal dot matrix on the position of storing high light on the data processing equipment and the liquid crystal that is in the light, this corresponding relation can show as a table, an array, a file or other structure that is adapted at representing in the data processing equipment, after data processing equipment obtains the position of hot spot, by retrieving this corresponding relation point that penetrability should diminish on the liquid crystal that just obtained being in the light, data processing equipment makes some penetrability corresponding on the liquid crystal that is in the light diminish by the control liquid crystal control circuit then, has so just finished a control procedure.
Therefore, the present invention has following advantage: 1, reasonable in design, simple in structure, easy to implement; 2, easy to use, manufacturing cost is lower, is convenient to promote; 3, overcome the dazzle defective of driving in night, effectively avoided the generation of accident, improved security performance; 4, precision height, data-handling capacity is strong, the automaticity height, the integrated level height is convenient to assembling and debugging.
Description of drawings
Accompanying drawing 1 is a kind of structured flowchart of the present invention;
Accompanying drawing 2 is a kind of structural representations of the present invention.
Embodiment
Below by embodiment, and in conjunction with the accompanying drawings, technical scheme of the present invention is described in further detail.
Embodiment 1:
The intelligent dazzle-resisting device comprises photosensitive device 1, and with the data processing equipment that photosensitive device 1 links to each other, the signal after described data processing equipment will be handled inputs to filtering apparatus 3, and described filtering apparatus 3 links to each other with display device 4; Described data processing equipment is made up of video frequency processing chip 2.Described photosensitive device 1 is to be made up of positioning shooting head 1-1 and the optical filter 1-2 that is located at its place ahead; Described filtering apparatus 3 is to be made up of anti-dazzle camera 3-1 and the liquid crystal 3-2 that is in the light that links to each other with video frequency processing chip 2 that is located at its place ahead.Described video frequency processing chip is FPGA.The axis of positioning shooting head 1-1 and the axis almost parallel of anti-dazzle camera 3-1.Described positioning shooting head 1-1 and anti-dazzle camera 3-1 are located at respectively on the support body 5, and both are isolated by anti-dazzling screen 6; Positioning shooting head 1-1 is located in the cone-shaped cavity 7, and described positioning shooting head 1-1 and optical filter 1-2 are at a distance of 10mm.The described liquid crystal 3-2 that is in the light is the dot lcd screen, and its contrast is not less than 20: 1.In anti-dazzle camera 3-1, be provided with the light correcting unit.
Intelligent dazzle-resisting method is characterized in that comprising the steps: signals collecting: utilize photosensitive device to gather extraneous light; Data processing: handle by data processing chip according to the data that photosensitive device collects, to determine the position of intense light source; Filter to handle: the position of the intense light source of judging according to predefined light intensity threshold values in the data processing equipment, realize the operation that filters according to control signal by filtering apparatus; Show: by anti-dazzle camera collection signal, and on display screen, export according to the result of filtering apparatus.
Through after the above-mentioned processing, being in the light, the lower point of penetrability just keeps off between the camera lens of intense light source and anti-dazzle camera on the liquid crystal, and other liquid crystal dots on the liquid crystal that is in the light is still the point of high-transmittance, the light of background scenery still can arrive anti-dazzle camera by the liquid crystal that is in the light preferably, see over from the angle of anti-dazzle camera like this, because intense light source has greatly been weakened (for example headlight of automobile), and the light of other scenery is not weakened significantly, so the phenomenon of brightness hard contrast has been eliminated, the reason that promptly causes producing dazzle has not existed, so the image of seeing from anti-dazzle camera is a distinct image, be the image that scenery can both clearly be seen around.The image that anti-dazzle camera obtains can be shown on the display screen, and when the image of per second demonstration surpassed 20 frames, what people saw was exactly a continuously dynamic image.Can't see road conditions clearly the time, just can on display screen, still see road conditions clearly, thereby effectively avoid the generation of accident because the opposite high light is dazzling as people like this.
Embodiment 2:
The photosensitive device system of present embodiment is made up of the photoelectric sensing dot matrix.Remainder is all roughly identical with embodiment 1, repeats no more here.
Embodiment 3:
The video frequency processing chip of present embodiment is DSP, and remainder is all roughly identical with embodiment 1, repeats no more here.
Embodiment 4:
The video frequency processing chip of present embodiment is EPLD, and remainder is all roughly identical with embodiment 1, repeats no more here.
The various chips that adopted herein, electronic devices and components, the first-class disclosed conventional products of prior art that is of making a video recording.
Specific embodiment described herein only is that the present invention's spirit is illustrated.The technician of the technical field of the invention can make various modifications or replenishes or adopt similar mode to substitute described specific embodiment, but can't depart from spirit of the present invention or surmount the defined scope of appended claims.
Although this paper has used terms such as photosensitive device, data processing equipment, filtering apparatus, display device morely, do not get rid of the possibility of using other term.Using these terms only is in order to describe and explain essence of the present invention more easily; They are construed to any additional restriction all is contrary with spirit of the present invention.
Claims (10)
1. an intelligent dazzle-resisting device comprises photosensitive device, and the data processing equipment that links to each other with photosensitive device is characterized in that linking to each other with filtering apparatus (3) at described data processing equipment, and described filtering apparatus (3) links to each other with display device (4); Described data processing equipment comprises video frequency processing chip (2).
2. intelligent dazzle-resisting device according to claim 1 is characterized in that at described photosensitive device (1) being to be made up of positioning shooting head (1-1) and the optical filter (1-2) of being located at its place ahead; Described filtering apparatus (3) is to be made up of anti-dazzle camera (3-1) and the liquid crystal that is in the light (3-2) that links to each other with video frequency processing chip (2) of being located at its place ahead.
3. intelligent dazzle-resisting device according to claim 1 is characterized in that at described photosensitive device (1) be to be made up of the photoelectric sensing dot matrix; Described filtering apparatus (3) is to be made up of anti-dazzle camera (3-1) and the liquid crystal that is in the light (3-2) that links to each other with video frequency processing chip (2) of being located at its place ahead.
4. according to claim 1 or 2 or 3 described intelligent dazzle-resisting devices, it is characterized in that at described video frequency processing chip be FPGA or DSP or EPLD.
5. intelligent dazzle-resisting device according to claim 1 and 2 is characterized in that at the axis of described positioning shooting head (1-1) and the axis almost parallel of anti-dazzle camera (3-1).
6. motor vehicle anti-glare device according to claim 5 is characterized in that being located at respectively on the support body (5) at described positioning shooting head (1-1) and anti-dazzle camera (3-1), and both are isolated by anti-dazzling screen (6); Positioning shooting head (1-1) is located in the cone-shaped cavity (7), and described positioning shooting head (1-1) and optical filter (1-2) are at a distance of 2mm～30mm.
7. intelligent dazzle-resisting device according to claim 5 is characterized in that being the dot lcd screen at the described liquid crystal that is in the light (3-2) that its contrast is for being not less than 20: 1.
8. intelligent dazzle-resisting device according to claim 5 is characterized in that being provided with the light correcting unit at described anti-dazzle camera (3-1).
9. an intelligent dazzle-resisting method is characterized in that comprising the steps:
A. signals collecting: utilize photosensitive device to gather extraneous light;
B. data processing: handle by data processing chip according to the data that photosensitive device collects, to determine the position of intense light source;
C. filter to handle: the position of the intense light source of judging according to predefined light intensity threshold values in the data processing equipment, realize the operation that filters according to control signal by filtering apparatus;
D. show: by anti-dazzle camera collection signal, and on display screen, export according to the result of filtering apparatus.
10. intelligent dazzle-resisting method according to claim 9 is characterized in that described optical filtering processing comprises the steps:
A. judge the position of intense light source according to data processing step, the correspondence position of the retrieval light source position and the liquid crystal dots that is in the light;
B. according to the corresponding liquid crystal dots of the liquid crystal that is in the light that obtains, control the penetrability step-down of corresponding liquid crystal dots.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100496690A CN100538446C (en) | 2005-04-26 | 2005-04-26 | Intelligent dazzle-resisting method and device thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CNB2005100496690A CN100538446C (en) | 2005-04-26 | 2005-04-26 | Intelligent dazzle-resisting method and device thereof |
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| Publication Number | Publication Date |
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| CN1854815A true CN1854815A (en) | 2006-11-01 |
| CN100538446C CN100538446C (en) | 2009-09-09 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNB2005100496690A Expired - Fee Related CN100538446C (en) | 2005-04-26 | 2005-04-26 | Intelligent dazzle-resisting method and device thereof |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105301815A (en) * | 2014-05-26 | 2016-02-03 | 苏州耀新电子有限公司 | Spatial light modulator used for night vision assistant system of car |
| CN109587395A (en) * | 2018-11-23 | 2019-04-05 | 福建工程学院 | It is a kind of based on image procossing and virtually that is enhanced prevent the system and its implementation of dazzle |
| CN116051450A (en) * | 2022-08-15 | 2023-05-02 | 荣耀终端有限公司 | Glare information acquisition method, device, chip, electronic equipment and medium |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN87102827A (en) * | 1987-04-14 | 1988-11-02 | 诸殿淙 | Universal anti-glare automatic light-controlling device |
| CN1086771A (en) * | 1992-11-07 | 1994-05-18 | 陈友苏 | The drive a vehicle method and the device of outer room communication in anti-dazzle, illumination or the car |
| JP2971754B2 (en) * | 1994-10-03 | 1999-11-08 | 株式会社村上開明堂 | Electrochromic anti-glare mirror |
| EP1118899A1 (en) * | 2000-01-20 | 2001-07-25 | Jean-Claude Dumas | Optical device comprising an electro-optical filter being automatically controlled as a function of light reaching the same |
| WO2003073923A1 (en) * | 2002-03-05 | 2003-09-12 | Chul Myung Choe | Quantitative analysis apparatus for phenomena of glare and the method for the same |
| US7199767B2 (en) * | 2002-03-07 | 2007-04-03 | Yechezkal Evan Spero | Enhanced vision for driving |
| WO2003106891A1 (en) * | 2002-06-17 | 2003-12-24 | Vladimir Leontjevich Krapivin | Polarising anti-dazzle device |
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2005
- 2005-04-26 CN CNB2005100496690A patent/CN100538446C/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105301815A (en) * | 2014-05-26 | 2016-02-03 | 苏州耀新电子有限公司 | Spatial light modulator used for night vision assistant system of car |
| CN109587395A (en) * | 2018-11-23 | 2019-04-05 | 福建工程学院 | It is a kind of based on image procossing and virtually that is enhanced prevent the system and its implementation of dazzle |
| CN109587395B (en) * | 2018-11-23 | 2020-11-06 | 福建工程学院 | Glare prevention system based on image processing and virtual enhancement and implementation method thereof |
| CN116051450A (en) * | 2022-08-15 | 2023-05-02 | 荣耀终端有限公司 | Glare information acquisition method, device, chip, electronic equipment and medium |
| CN116051450B (en) * | 2022-08-15 | 2023-11-24 | 荣耀终端有限公司 | Glare information acquisition method, device, chip, electronic equipment and medium |
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| CN100538446C (en) | 2009-09-09 |
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