CN110107859A - A kind of vision control system, method and the automobile of intelligent and safe headlight - Google Patents
A kind of vision control system, method and the automobile of intelligent and safe headlight Download PDFInfo
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- CN110107859A CN110107859A CN201910386392.2A CN201910386392A CN110107859A CN 110107859 A CN110107859 A CN 110107859A CN 201910386392 A CN201910386392 A CN 201910386392A CN 110107859 A CN110107859 A CN 110107859A
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
- F21S41/60—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by a variable light distribution
- F21S41/63—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by a variable light distribution by acting on refractors, filters or transparent cover plates
- F21S41/64—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by a variable light distribution by acting on refractors, filters or transparent cover plates by changing their light transmissivity, e.g. by liquid crystal or electrochromic devices
- F21S41/645—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by a variable light distribution by acting on refractors, filters or transparent cover plates by changing their light transmissivity, e.g. by liquid crystal or electrochromic devices by electro-optic means, e.g. liquid crystal or electrochromic devices
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21W—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO USES OR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS
- F21W2102/00—Exterior vehicle lighting devices for illuminating purposes
- F21W2102/10—Arrangement or contour of the emitted light
- F21W2102/13—Arrangement or contour of the emitted light for high-beam region or low-beam region
Abstract
The invention belongs to light regulation technology fields, disclose a kind of vision control system of intelligent and safe headlight；It is provided with intelligent identifying system, by industrial camera real-time capture Chinese herbaceous peony picture, recognizes inside picture whether have target vehicle by intelligent identifying system；The light that control light projection system filters out opponent vehicle position angle realizes intelligent and safe；Light projection system filters out the too big veiling glare of inclined firing angle degree, radial light is projected in refraction for filtering out and changing the biggish light of angular deviation；Optical filtering control system, coordinate for obtaining signal from identifying system with certain frequency to control and black patch needs to show, display screen is controlled by LCD control circuit show that black patch filters out and need to avoid the region of vehicle, to realize the control for projecting black patch.
Description
Technical field
The invention belongs to the vision control systems and side of light regulation technology field more particularly to a kind of intelligent and safe headlight
Method.
Background technique
Currently, the most common prior art: the two-filament bulb that nineteen twenty-five promotes, the adjusting of distance light and dipped beam pass through to be mounted in and turn
Switch on column adjusts light angle or brightness to control substantially only through manual switching.There is new rise technology to pass through
Light level controls distance light, dipped beam system, comparatively more humane.But since certain functions are impracticable not yet common.
This automatic control mode does not only need people and manually controls, and reduces labor intensity.But all-terrain baby can't be adapted to, and
Dipped headlight is automatically switched into later still to have an impact for the sight of oneself.Released on the market at present closest to this headlight
The product of function is the scheme of the form for a LED array that benz is released, and this array production processing cost is high, Yi Dui great
Lamp tens of thousands of members easily, and have the monopolization technical barrier of overseas enterprise, most of vehicle can not be fitted in the shortest time.In it
Face does not introduce lens and the concept of LCD, is directly controlling for direct projection.The control of ray discrimination rate is not accomplished in angle of visibility
Spend intrinsic resolution maximum transversal 1920, longitudinal 1080 effect.And it can not effectively be popularized in the short time.Effect is also without lens group
It is good to control light effects.And do not accomplish the low cost of this programme, and in the case where newly rise technology is not yet universal, most of vehicle
Traditional manual distance light, dipped beam switching reply night meeting are all made of for the safety measure to always vehicle, mainly there are following items
Disadvantage: driving at night driver's large labor intensity, the easy fatigue of simple subprogram formula operation is not intelligent, there is driver's meeting that light is brighter
There is not switching behavior, it is very harmful.Oneself sight shortens after switching dipped beam when meeting, oneself safety is not guaranteed.Frequently cut
The light service life is shorter after changing distance light, dipped beam.
In conclusion problem of the existing technology is:
Existing vehicle is all made of traditional manual distance light, dipped beam switching reply night meeting arranges the safety to always vehicle
It applies there are driving at night driver's large labor intensity, it is not intelligent that the operation of simple subprogram formula is easy fatigue, there is the driver that light is brighter
Have a not switching behavior, oneself sight shortens after switching dipped beam when very harmful meeting, oneself safety is there is no guarantee that frequently cuts
Light source life is shorter after changing distance light, dipped beam.
Solve the difficulty of above-mentioned technical problem:
For from the angle of traditional light of real meaning, these problems are just brought from structure and principle design
Defect determine that it has the fact that evolution can not be transformed.Only completely new industrialization design and completely new theory could be solved thoroughly
Certainly these defects.
Solve the meaning of above-mentioned technical problem:
Such as use this headlight scheme, then it completely can be to avoid all defect of above scheme.System default is from target vehicle
It appears in camera fields of view to start to turn on intelligent filter system, people is also more intelligent on the visual experience that night drives a vehicle, department
Machine drive when will not because of night drive a vehicle frequent meeting caused by labor intensity increase, will not because of switching dipped beam after
Cause the influence to oneself driving visual field.It is also very friendly for target vehicle and roadside pedestrian.
Summary of the invention
In view of the problems of the existing technology, the present invention provides a kind of vision control system of intelligent and safe headlight and sides
Method.
The invention is realized in this way a kind of vision control system of intelligent and safe headlight, the intelligent and safe headlight
Vision control system includes:
Intelligent identifying system recognizes picture by intelligent identifying system by industrial camera real-time capture Chinese herbaceous peony picture
Target vehicle inside face；The light that control light projection system filters out opponent vehicle position angle realizes intelligent and safety
Change；
Light projection system filters out the too big veiling glare of inclined firing angle degree, reflects for filtering out and changing the biggish light of angular deviation
Project radial light；
Optical filtering control system controls for obtaining signal from identifying system with certain frequency and black patch needs to show
The coordinate shown, controls display screen by LCD control circuit and shows that black patch filters out and need to avoid the region of vehicle, to realize
For projecting the control of black patch.
Further, the intelligent identifying system is industrial camera.
Further, the light projection system is constituted are as follows: model machine ontology has been bolted video camera, and model machine ontology right end is embedding
Equipped with convex lens group, convex lens group left end is provided with two panels Fresnel Lenses, and LCD liquid crystal is fixed between two panels Fresnel Lenses
Screen, Fresnel Lenses left end are fixed with focusing convex lens, focus and are embedded with LED lamp source inside convex lens.
It is as follows another object of the present invention is to provide a kind of structural relation of the model machine of light projection system:
Model machine ontology right end has been bolted video camera, and model machine ontology right end is embedded with convex lens group, convex lens group
Left end is fixed with LCD liquid crystal display, and LCD liquid crystal display left end is fixed with Fresnel Lenses, and it is convex that Fresnel Lenses left end is fixed with focusing
Lens focus and are embedded with LED lamp source inside convex lens.
Another object of the present invention is to provide a kind of intelligence of control system for executing the safe headlight of the Visual intelligent
The control method of the control method of safe headlight, the intelligent and safe headlight includes:
The first step, industrial camera real-time capture Chinese herbaceous peony picture are recognized inside picture by intelligent identifying system, are being known
In other frame out when safe avoidance vehicle in need, control light projection system filters out the light of opponent vehicle position angle；
Second step, LCD control program is controlled with certain frequency from identifying system acquisition signal and black patch needs
The coordinate of display, controls display screen by LCD control circuit and shows that black patch filters out and need to avoid the region of vehicle, realizes
For projecting the control of black patch；
Third step, after light source emits beam, light, which changes radiation direction by convex lens, to be projected to front；Lead to again
It crosses Fresnel mirror and filters out and change the biggish light of angular deviation, project the light close to directional light, light is using controllable picture
After the optical filtering LCD liquid crystal display of elementization, light is in the pixelation of similar array；Light is shunk using Fresnel Lenses appropriate adjustment
Angle simultaneously filters out the too big veiling glare of inclined firing angle degree again, allows light cross-sectional constriction to less than diameter of lens；Last light passes through suitable
When radial light is projected in the convex lens group refraction of focal length.
Another object of the present invention is to provide a kind of control systems for being equipped with the safe headlight of the Visual intelligent.
In conclusion advantages of the present invention and good effect are as follows:
1, it is not necessarily to frequent switching distance-light during driver's night running, substantially reduces driver's labor intensity.
2, not by road conditions and apart from limitation, as long as opponent vehicle appears in vision system, system commences work without delay,
The influence to target vehicle is reduced, security performance is stronger.
3, in intelligent recognition and after filtering out light, road conditions irradiating angle is not changed, pilot's line of vision is not influenced.
4, it supports while identifying that multiple targets, adaptability are stronger.
Detailed description of the invention
Fig. 1 is that the large volume of light projection system in the vision control system of intelligent and safe headlight provided in an embodiment of the present invention is low
The structural schematic diagram of cost model machine；
In figure: 1, video camera；2, convex lens group；3, Fresnel Lenses；4, LCD liquid crystal display；5, convex lens is focused；6,LED
Lamp source.
Fig. 2 is the visual spatial attention method flow diagram of intelligent and safe headlight provided in an embodiment of the present invention.
Fig. 3 is light process flow diagram provided in an embodiment of the present invention (filter system workflow).
Fig. 4 is camera fields of view provided in an embodiment of the present invention and projection output picture drawing.
Fig. 5 is camera lens and camera scheme of installation provided in an embodiment of the present invention.
Fig. 6 is that display provided in an embodiment of the present invention shows camera image and projected picture effect picture.
Fig. 7 is how binocular camera provided in an embodiment of the present invention calculates relationship between light and camera, installation site
And imaging schematic diagram.
The effect picture seen Fig. 8 is not switched on intelligent recognition during being this prototyping testing when from target vehicle position has dazzling
Qiang Guang.
The effect picture seen Fig. 9 has opened intelligent recognition during being this prototyping testing when from target vehicle position, without dazzling
Qiang Guang.
Figure 10 is the change calmly of light projection system in the vision control system of intelligent and safe headlight provided in an embodiment of the present invention
Prototype structure schematic diagram.
Specific embodiment
In order to make the objectives, technical solutions, and advantages of the present invention clearer, with reference to embodiments, to the present invention
It is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, it is not used to
Limit the present invention.
Application principle of the invention is explained in detail with reference to the accompanying drawing.
As shown in Figure 1, the vision control system of intelligent and safe headlight provided in an embodiment of the present invention includes: intelligent recognition system
System, light projection system, optical filtering control system.
Intelligent identifying system recognizes picture by intelligent identifying system by industrial camera real-time capture Chinese herbaceous peony picture
(current prototype is only supported to identify by the light of opponent vehicle, if following two vehicles all install this system inside face.When two vehicles cross
Intelligence system will real-time communication), when identifying safe avoidance vehicle in need in frame out, control light projection system filters out other side
The light of vehicle position angle realizes that intelligent and safe obtains purpose.
Light projection system, mainly by high-power LED light source (full name Light Emitting Diode be also light emitting diode)
Light is projected, it is to project to front, then filter out by Fresnel mirror and change angle that light, which changes radiation direction by convex lens,
Spend the biggish light of deviation, project close to directional light light, light using controllable pixel optical filtering LCD (full name
Liquid Crystal Display be also liquid crystal display) after liquid crystal display, light is in the pixelation of similar array, using phenanthrene
Nie Er lens appropriate adjustment shrinks light angle and simultaneously filters out the too big veiling glare of inclined firing angle degree again, allows light cross-sectional constriction to being less than
Diameter of lens, last light projects radial light by the convex lens group refraction of appropriate focal length (to be down herein relative to LCD
Picture).
The light projection system is constituted are as follows: model machine ontology has been bolted video camera 1, and model machine ontology right end is embedded with convex
Lens group 2,2 left end of convex lens group are provided with two panels Fresnel Lenses 3, LCD liquid crystal display are fixed between two panels Fresnel Lenses 3
4,3 left end of Fresnel Lenses, which is fixed with, focuses convex lens 5, focuses and is embedded with LED lamp source 6 inside convex lens 5.
Optical filtering control system, mainly by power circuit, LCD driving circuit, LCD screen (LCD screen use high light transmission screen),
Drive control program composition.The seat for obtaining signal from identifying system with certain frequency to control and black patch needs to show
Mark controls display screen by LCD control circuit and shows black patch to filter out the region for needing to avoid vehicle, with realization pair
In the control for projecting black patch.
The structural relation for determining to change model machine of the light projection system is as follows:
Model machine ontology right end has been bolted video camera 1, and model machine ontology right end is embedded with convex lens group 2, convex lens
2 left ends of group are fixed with LCD liquid crystal display 4, and 4 left end of LCD liquid crystal display is fixed with Fresnel Lenses 3, and 3 left end of Fresnel Lenses is fixed with
Convex lens 5 is focused, focuses and is embedded with LED lamp source 6 inside convex lens 5.
As shown in Fig. 2, the visual spatial attention method of intelligent and safe headlight provided in an embodiment of the present invention includes:
The first step, industrial camera real-time capture Chinese herbaceous peony picture are recognized inside picture (at present by intelligent identifying system
Model machine is only supported to identify by the light of opponent vehicle, if following two vehicles all install this system；Intelligence system will when two vehicles cross
Meeting real-time communication), when identifying safe avoidance vehicle in need in frame out, it is in place that control light projection system filters out opponent vehicle institute
The light of angle setting degree realizes that intelligent and safe obtains purpose.
Second step, LCD control program is controlled with certain frequency from identifying system acquisition signal and black patch needs
The coordinate of display, controls display screen by LCD control circuit and shows that black patch filters out and need to avoid the region of vehicle, realizes
For projecting the control of black patch；
Third step, after light source emits beam, light, which changes radiation direction by convex lens, to be projected to front；Lead to again
It crosses Fresnel mirror and filters out and change the biggish light of angular deviation, project the light close to directional light, light is using controllable picture
After the optical filtering LCD liquid crystal display of elementization, light is in the pixelation of similar array；Light is shunk using Fresnel Lenses appropriate adjustment
Angle simultaneously filters out the too big veiling glare of inclined firing angle degree again, allows light cross-sectional constriction to less than diameter of lens；Last light passes through suitable
When radial light is projected in the convex lens group refraction of focal length.
The vision control system of intelligent and safe headlight provided in an embodiment of the present invention is for the processing of light and final defeated
Mode out；
Light projection system 2 is mainly by high-power LED light source (full name Light Emitting Diode be also light emitting diode)
Light is projected, light passes through Internal Spherical Surface concave mirror, then the biggish light of angular deviation is filtered out and changed by Fresnel mirror,
Project close to directional light light, light using controllable pixel optical filtering LCD (full name Liquid Crystal Display
Also it is liquid crystal display) after liquid crystal display, light is in the pixelation of similar array, shrinks light using Fresnel Lenses appropriate adjustment
Line angle degree simultaneously filters out the too big veiling glare of inclined firing angle degree again, and last light 1/3 position after the focus of Fresnel Lenses passes through
The convex lens of appropriate focal length projects radial light using convex lens.
Application principle of the invention is further described combined with specific embodiments below.
Light source of the invention can be with Conventional luminescent light bulb (including LED light, tengsten lamp, halogen lamp, xenon lamp) substitution simultaneously
Change light with concave mirror (including Internal Spherical Surface mirror, paraboloidal mirror) and project direction to achieve the purpose that project directional light, then may be used
With with Fresnel Lenses (referred to herein as before Fresnel Lenses, refer to the lens of the change light angle between LCD and light source),
The convex lens of appropriate angle can also be used, can also need not, this depend primarily on above shine reflection or dioptric system in penetrate
The angle of light out, last LCD can be liquid crystal display (including LCD LED, electronic ink screen), for the driving side of liquid crystal display
Formula and driver are not done states one by one, the shape (chartered steamer exterior feature rectangle, square, circle, ellipse) of screen, rear Fresnel
Lens (referring to the lens for being used to shrink light angle between screen and big convex lens group) can use the convex lens of appropriate angle
Mirror or Internal Spherical Surface mirror (appropriate to shrink light and change the angle that light projects center).Certain LCD can also be located at big convex
Before focus after lens, same purpose also can achieve.
The selection of camera, the realization of sequence circuit and the selection of chip drive controllable LCD or DMD
The selection of chip, the selection of light source, the catadioptric mode components selection of light processing, power management and light bulb boosting electricity
The realization on road is selected.
The selection of camera: Haikang industry color video camera is selected in an experiment, since industrial camera is for each
Adjustable and camera lens the replaceable function of a parameter can adjust various states to greatest extent in an experiment more easily to look for
It is selected to parameters of the invention are more suitable for.It is all made of B/W camera in actual use, so that it may which satisfaction recognizes mesh
Mark the purpose of lights of vehicle.Cost is also relatively low.Furthermore the picture data amount very little of B/W camera shooting, for handling chip
Requirement also relative reduction, speed can be greatly speeded up.For resolution of video camera selection nor very high, camera coverage angle
Degree can select different camera lenses that can realize relatively flexibly according to the field-of-view angle of different automobile types.
The realization of sequence circuit and the selection of chip: cheap function is selected according to the requirement that picture is handled
Powerful pin is mostly and the chip of the STM32 series of technology relative maturity, the lower main realization workload of development difficulty are all
Program write and the logic of algorithm realize.It is real for software algorithm available in the case of video camera and LCD different resolution
It now converts specific as follows:
Monocular camera
1 hypothesis camera lens center is overlapped with optical center, and without any machine error influence, then camera fields of view with greatly
Lamp projection output picture should be illustrated in fig. 4 shown below.
2 cameras and camera lens select
It (1) is to ensure camera fields of view in drop shadow spread, it is assumed that selected camera lens projects width * high in projector distance St
Are as follows:
Wt=projection width, Ht=standoff height；
The two parameters can directly or indirectly provide in lens parameters and LCD resolution parameter introduction.
(2) according to headlight drop shadow spread, it is desirable that the wide * high of camera fields of view is less than projection width and height, that is, meets relationship:
WX=camera fields of view width, HX=camera fields of view height；
WX≤Wt；HX≤Ht；
So far, confirmable parameter has object distance St, and camera fields of view WX, HX, camera size also can be in selected camera
It is obtained in databook, by following imaging formula, camera focus F can be calculated, select the camera lens of respective focal；
At this point, the hardware parameter of camera lens and camera all determines.
The positioning of 3 image lights and error compensation
(1) by taking selected LCD and camera as an example, introduce how to carry out image and projected picture coordinate transform.LCD resolution
(1920*1080), camera resolution (1536*864).
(2) scheme of installation, as shown in Figure 5:
(3) camera imaging and projected picture relationship calculate, computer monitor using top left corner apex as coordinate origin (0,0),
If allowing display to show that camera image and projected picture, effect are as shown in Figure 6 without coordinate transform；
A point coordinate (a, b are camera fields of view central point) in Fig. 6, B point coordinate (c, d are projected picture central point), will scheme
6 picture is converted into the picture effect of Fig. 4, needs to carry out A coordinate progress and is moved to the lower right corner, moving distance can indicate
Are as follows:
Move horizontally distance: Offset_W=c-a；
Vertical travel distance: Offset_H=d-b；
Known LCD and camera resolution from the selection of hardware above；
Find out point A coordinate；
A=1536/2, b=864/2；
Point B coordinate；
C=1920/2, d=1080/2；
Then；
Offset_W=1920/2-1536/2=192；
Offset_H=1080/2-864/2=108.
All the points in image are extended to, then the coordinate of each point should add (Offset_W, Offset_H).Arrive this,
Completion has been established in mathematical model ideally.But since camera lens center is not deposited with headlight optical center in actual conditions
In the possibility of coincidence, it is re-introduced into two parameters of actual environment error.Horizontal error Horizontal_Offset (can be negative
Number), vertical error Vertical_Offset (can be negative).After the two parameters need camera and headlight camera lens to be installed,
Image procossing is manually adjusted according to software and is obtained.Thus derive, in camera image any one point (Row, Column) with
LCD draws relation of plane are as follows:
Projector row coordinate=Row+Offset_H+Vertical_Offset；
Projector picture column coordinate=Column+Offset_W+Horizontal_Offset.
Light positioning
The part is image procossing, and camera filters out light region, then root according to strong contrast according to the image of shooting
Interference light is filtered according to area size, central point solution then is carried out to lamp bright area, obtains the light center of a lamp and the bright radius of lamp.Again
By the coordinate transform of third step above, projection black box is shown in LCD picture.
Binocular camera and object distance position
1 calculating process
Binocular camera measurement distance is not related with camera lens, is explained below how binocular camera calculates target vehicle and phase
The distance between machine.Installation site and imaging signal such as Fig. 7；In Fig. 7, parameters is defined as:
Optical center distance between L1: two cameras；
Light center of a lamp's distance is imaged between L2: two cameras；
S1: light imaging plane and camera lens plane vertical range；
S2: the light center of a lamp is in camera lens plane projection and camera lens central horizontal distance；
S3: the light center of a lamp and optical center distance.
Parameter can be directly obtained at present there was only L1.Remaining L1, S1, S2, S3 can not be directly acquired.It therefore can not be direct
It is carried out using triangle geometry theorem apart from solution.Because two camera parameters are consistent, theoretically two cameras are in same position
The photo of same angle shot should be consistent.Thus, it is possible to so be derived:
Blue camera is that red camera obtain to right translation.According to camera imaging characteristic, in the same plane, phase
Machine moves to right distance L1, and imaging point also can and then move to left distance L1.Therefore deduce that L1=L2.This conclusion makes problem simple
Change.
Software carries out the solution of light center of a lamp's point to the image of red camera and the acquisition of blue camera simultaneously, it is assumed that acquisition it is red
Form and aspect machine image light centre coordinate is (Rr, Cr), and blue camera image light center of a lamp coordinate is (Rb, Cb), due to being horizontal
Translation, vertical coordinate are negligible.Then two images light center of a lamp pixel distance are as follows:
P=| Cb-Cr |；
The actual range that each pixel represents are as follows:
Sp=L1/P；
The visual field of the camera in this plane is calculated again:
Camera fields of view is wide=Wv=1536*Sp；
Object distance S1 is obtained by following formula:
S1=Wv*F/ camera size is wide；
Likewise, the length of S2 is；
S2=(| 1536/2-Cr |) * Sp；
Finally, according to triangle Pythagorean theorem, light and red camera lens centre distance are as follows:
Similarly, blue camera distance can also be calculated by this step.If two camera mounting distances are close, the two cameras
Calculated distance can be approximately considered equal.
The selection of controllable LCD DMD driving chip: it is all made of that technology relative maturity is also relatively good to be bought in an experiment
The LCD of no backlight is shown and its drive system.Monochromatic LCD screen or electronic ink screen can be used in practical application, relatively
For energy consumption lower cost it is also relatively cheap.Black patch light transmittance is low, and the feasibility and reality of this project can be greatly improved
Using effect.
The selection of light source: using the higher xenon lamp of brightness or high-powered LED lamp as light source.
The catadioptric mode components of light processing are selected:
The realization of power management and light bulb booster circuit is selected:
Such as light source can use Conventional luminescent light bulb (including LED light, tengsten lamp, halogen lamp, xenon lamp, UHP (full name
Ultra High Performance be also ultrahigh pressure mercury lamp)) it substitutes and is changed with concave mirror (including Internal Spherical Surface mirror, paraboloidal mirror)
Darkening line projects direction to achieve the purpose that project directional light.
Fresnel Lenses can then be used, and (Fresnel Lenses, refers to the change light between LCD and light source before referred to herein as
The lens of line angle degree), the convex lens of appropriate angle can also be used, can also need not, this depend primarily on above shine reflection
Or irradiant angle in dioptric system.
Last LCD can be liquid crystal display (including LCD LED, electric ink), driving method for liquid crystal display and
Driver does not do and states one by one, the shape (chartered steamer exterior feature rectangle, square, circle, ellipse) of screen.
Fresnel Lenses (refer between screen and big convex lens group for shrinking the lens of light angle) can be with afterwards
With the convex lens or Internal Spherical Surface mirror (the appropriate angle for shrinking light and change light injection center) of appropriate angle.
Certain LCD can also also can achieve same purpose before the focus after big convex lens.
If can also being called DMD with steerable retroreflective face mirror, (full name is using Internal Spherical Surface or parabolic mirror
Digital Micromirror Device (data micro-mirror device)) LCD and one group of Fresnel Lenses can not be used, directly make
Light is projected with the camera lens of respective focal.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention
Made any modifications, equivalent replacements, and improvements etc., should all be included in the protection scope of the present invention within mind and principle.
Claims (7)
1. a kind of vision control system of intelligent and safe headlight, which is characterized in that the visual spatial attention system of the intelligent and safe headlight
System includes:
Intelligent identifying system is recognized in picture by industrial camera real-time capture Chinese herbaceous peony picture by intelligent identifying system
Whether face has target vehicle；The light that control light projection system filters out opponent vehicle position angle realizes intelligent and safety
Change；
Light projection system filters out the too big veiling glare of inclined firing angle degree, refraction is projected for filtering out and changing the biggish light of angular deviation
Radial light；
Light projection system is constituted are as follows: model machine ontology has been bolted video camera, and model machine ontology right end is embedded with convex lens group, convex
Lens group left end is provided with two panels Fresnel Lenses, and LCD liquid crystal display is fixed between two panels Fresnel Lenses, and Fresnel Lenses is left
End is fixed with focusing convex lens, focuses and is embedded with LED lamp source inside convex lens；
Optical filtering control system controls for obtaining signal from identifying system with certain frequency and black patch needs to show
Coordinate, controls display screen by LCD control circuit and shows that black patch filters out and need to avoid the region of vehicle, with realize for
The control of black patch is projected, and realizes real-time tracking.
2. the vision control system of intelligent and safe headlight as described in claim 1, which is characterized in that the intelligent identifying system
For industrial camera and target vehicle light recognizer.
3. the vision control system of intelligent and safe headlight as described in claim 1, which is characterized in that the light projection system is by big
Power LED light source, convex lens, Fresnel mirror, optical filtering LCD liquid crystal display, Fresnel Lenses composition.
4. the vision control system of intelligent and safe headlight as described in claim 1, which is characterized in that the optical filtering control system
It is made of power circuit, LCD driving circuit, LCD screen, drive control program.
5. the visual spatial attention that a kind of perform claim requires the intelligent and safe headlight of the vision control system of the 1 intelligent and safe headlight
Method, which is characterized in that the visual spatial attention method of the intelligent and safe headlight includes:
The first step, industrial camera real-time capture Chinese herbaceous peony picture are recognized inside picture by intelligent identifying system, are being identified
When having target vehicle in picture, control light projection system filters out the light of opponent vehicle position angle；
Second step, LCD control program is controlled with certain frequency from identifying system acquisition signal and black patch needs to show
Coordinate, display screen controlled by LCD control circuit show that black patch filters out and need to avoid the region of vehicle, realize for
Project the control of black patch；
Third step, after light source emits beam, light, which changes radiation direction by convex lens, to be projected to front；Pass through phenanthrene again
Nie Er mirror filters out and changes the biggish light of angular deviation, projects the light close to directional light, light is using controllable pixel
Optical filtering LCD liquid crystal display after, light is in the pixelation of similar array；Light angle is shunk using Fresnel Lenses appropriate adjustment
And the too big veiling glare of inclined firing angle degree is filtered out again, allow light cross-sectional constriction to less than diameter of lens；Last light passes through appropriate burnt
Away from convex lens group refraction project radial light.
6. the model machine of light projection system, feature in a kind of vision control system of intelligent and safe headlight as described in claim 1
It is, the structural relation of the model machine is as follows:
Model machine ontology right end has been bolted video camera, and model machine ontology right end is embedded with convex lens group, convex lens group left end
It is fixed with LCD liquid crystal display, LCD liquid crystal display left end is fixed with Fresnel Lenses, and Fresnel Lenses left end is fixed with focusing convex lens,
It focuses and is embedded with LED lamp source inside convex lens.
7. a kind of motor vehicles for being equipped with the vision control system of intelligent and safe headlight described in Claims 1 to 4 any one
The equal vehicles or vehicle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
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| CN110472691A (en) * | 2019-08-20 | 2019-11-19 | 中国科学技术大学 | Target locating module training method, device, robot and storage medium |
| WO2023035137A1 (en) * | 2021-09-08 | 2023-03-16 | 浙江智马达智能科技有限公司 | Liquid crystal projection lamp for vehicle, and vehicle |
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Application publication date: 20190809 |