CN110501827A - A kind of liquid-crystalline glasses automatic shading method and system - Google Patents
A kind of liquid-crystalline glasses automatic shading method and system Download PDFInfo
- Publication number
- CN110501827A CN110501827A CN201910593336.6A CN201910593336A CN110501827A CN 110501827 A CN110501827 A CN 110501827A CN 201910593336 A CN201910593336 A CN 201910593336A CN 110501827 A CN110501827 A CN 110501827A
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- light source
- liquid
- crystalline glasses
- human eye
- lightproof area
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Classifications
-
- E—FIXED CONSTRUCTIONS
- E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
- E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
- E06B9/00—Screening or protective devices for wall or similar openings, with or without operating or securing mechanisms; Closures of similar construction
- E06B9/24—Screens or other constructions affording protection against light, especially against sunshine; Similar screens for privacy or appearance; Slat blinds
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/13306—Circuit arrangements or driving methods for the control of single liquid crystal cells
-
- E—FIXED CONSTRUCTIONS
- E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
- E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
- E06B9/00—Screening or protective devices for wall or similar openings, with or without operating or securing mechanisms; Closures of similar construction
- E06B9/24—Screens or other constructions affording protection against light, especially against sunshine; Similar screens for privacy or appearance; Slat blinds
- E06B2009/2464—Screens or other constructions affording protection against light, especially against sunshine; Similar screens for privacy or appearance; Slat blinds featuring transparency control by applying voltage, e.g. LCD, electrochromic panels
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- Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Mathematical Physics (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Liquid Crystal (AREA)
Abstract
The invention discloses a kind of liquid-crystalline glasses automatic shading methods, comprising: position, intensity, incident angle and the shape size of analysis glass outer light source in real time；When detecting that the intensity of light source is greater than predetermined value and incident angle within a predetermined range, then further analysis inside glass position of human eye；According to the position of human eye and light source position, between the position of human eye and the light source position, the position of lightproof area on liquid-crystalline glasses is calculated, the area of the lightproof area is set according to the shape size of the light source；According to the light transmittance of the strength control liquid-crystalline glasses of the light source within the scope of the lightproof area.Lightproof area is formed between external light source and internal protege's eyes using the technical solution, and lightproof area is moved according to the movement of external light source and internal protege in real time, realizes real-time guard.
Description
Technical field
The present invention relates to field of liquid crystals, in particular to a kind of liquid-crystalline glasses automatic shading method and system.
Background technique
When in face of intense light sources such as sunlights, too strong light is possible to will cause the eye of the mankind eyes of the mankind
Eyeball short time blindness, or even possible permanent damage is caused to eyes.
Traditional method for blocking intense light source is, household blocked using curtain, driving in the vehicles such as automobile or aircraft
Sail sunshading board, pad pasting, wear dark glasses etc. on glass that installation can overturn or stretch inside room.These methods have one
Common problem has also blocked some or all of visual field of protege while having blocked strong light together, or make by
The visual field of protection people becomes smaller, or makes protege that can not see darker details.
Aiming at the problem that tradition blocks intense light source method, also once occurred can control the side that light passes through using liquid crystal board
Method, the method that light recognizer is made by photosensitive element to control the automatic blackening of liquid crystal sun shield portion block strong light.
The method can block external strong light automatically, and block that range is small small to visual field effects, but internal be protected
Shield personnel necessarily are in the fixation position set in advance in advance, immovable, or even are unable to rotary head, otherwise cannot achieve and block strong light
Effect.
Summary of the invention
The embodiment of the present invention is designed to provide a kind of liquid-crystalline glasses automatic shading method, in external light source and internal quilt
Lightproof area is formed between protection human eye, and shading region is moved according to the movement of external light source and internal protege in real time
Real-time guard is realized in domain.
A kind of liquid-crystalline glasses automatic shading method provided in an embodiment of the present invention, comprising:
Position, intensity, incident angle and the shape size of analysis glass outer light source in real time；
When detecting that the intensity of light source is greater than predetermined value and incident angle within a predetermined range, then further analysis inside glass
Position of human eye；
According to the position of human eye and light source position, between the position of human eye and the light source position, liquid crystal is calculated
The position of lightproof area on glass, the area of the lightproof area is arranged according to the shape size of the light source；
According to the light transmittance of the strength control liquid-crystalline glasses of the light source within the scope of the lightproof area.
It optionally, further include monitoring whether the lightproof area shelters from position of human eye according to image feedback, otherwise into one
The location and shape size of lightproof area described in successive step
Optionally, position of human eye uses face recognition technology inside the analysis.
Optionally, internal proprietary position of human eye is acquired using the camera for being installed on inside.
Optionally, the position of light source, intensity, incident angle are acquired in real time using the camera or photoreceptor that are installed on outside
And shape size.
Optionally, the liquid-crystalline glasses are lattice lcd glass or the glass for posting soft liquid crystal display.
In addition, the present invention also provides a kind of liquid-crystalline glasses auto light-shading systems, comprising:
Illuminant module, the illuminant module for acquiring and the position of glass analysis external light source, intensity, incidence angle in real time
Degree and shape size；
Face information acquisition module, the face information acquisition module are acquired according to face recognition technology and are calculated in glass
Portion's position of human eye；
Analytical calculation module, the analytical calculation module are connect with the illuminant module and face information acquisition module, are used
Detect that the intensity of light source is greater than predetermined value and incident angle within a predetermined range in working as, according to the position of human eye and light source position
It sets, between the position of human eye and the light source position, the position of lightproof area on liquid-crystalline glasses is calculated, according to the light source
Shape size the area of the lightproof area is set；
Control module, the module of controlling are connect with the analytical calculation module, within the scope of the lightproof area
According to the light transmittance of the strength control liquid-crystalline glasses of the light source.
Optionally, the face information acquisition module is acquired using internal camera and face recognition technology is installed on
Internal proprietary position of human eye.
Optionally, the illuminant module using be installed on external camera or photoreceptor and acquire in real time light source position,
Intensity, incident angle and shape size.
Optionally, the liquid-crystalline glasses are lattice lcd glass or the glass for posting soft liquid crystal display.
Therefore liquid crystal glass is driven due to utilizing the controllable light transmission features of liquid-crystalline glasses using the present embodiment technical solution
Glass generates lightproof area, blocks the position between external intense light source and internal protege's eyes, and according to external intense light source
With the movement of internal protege, lightproof area is moved in real time, realizes real-time guard, does not influence protege's activity, Bu Huiyin
There is the problem of can not blocking completely for the irradiating angle variation of external intense light source or the activity of protege.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention without any creative labor, may be used also for those of ordinary skill in the art
To obtain other drawings based on these drawings.
Fig. 1 is a kind of liquid-crystalline glasses automatic shading method flow diagram provided by the invention；
Fig. 2 is a kind of liquid-crystalline glasses automatic shading schematic diagram provided by the invention；
Fig. 3 is a kind of liquid-crystalline glasses auto light-shading system block diagram provided by the invention.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
Embodiment:
The present embodiment provides a kind of liquid-crystalline glasses automatic shading methods, as shown in Figure 1, comprising:
Position, intensity, incident angle and the shape size of analysis glass outer light source in real time；
When detecting that the intensity of light source is greater than predetermined value and incident angle within a predetermined range, then further analysis inside glass
Position of human eye；
According to the position of human eye and light source position, between the position of human eye and the light source position, liquid crystal is calculated
The position of lightproof area on glass, the area of the lightproof area is arranged according to the shape size of the light source；
According to the light transmittance of the strength control liquid-crystalline glasses of the light source within the scope of the lightproof area.
It can be, but not limited to, further include, monitor whether the lightproof area shelters from position of human eye according to image feedback, it is no
Then further adjust the location and shape size of the lightproof area.
It can be, but not limited to, position of human eye uses face recognition technology inside the analysis.Using being installed on internal take the photograph
As the internal proprietary position of human eye of head acquisition.Acquire the position of light source in real time using the camera or photoreceptor that are installed on outside
It sets, intensity, incident angle and shape size.
The liquid-crystalline glasses are lattice lcd glass or the glass for posting soft liquid crystal display.Lattice lcd glass can be used
Instead of the door glass of building, shield glass and glass for vehicle window, aircraft cockpit glass, aircrew helmet's mask glass
The traditional glasses such as glass of glass, ship cockpit.
In one embodiment, as shown in Fig. 2, replacing the door glass of building using dot matrix liquid-crystalline glasses, installation is utilized
In external camera real-time image acquisition, analyze in real time the position of sunlight outside door glass A, intensity, incident angle and
Shape size；When detecting that sunlight intensity is greater than predetermined value and incident angle within a predetermined range, then further analysis door and window
Position of human eye inside glass A；According to the position of human eye and sun optical position, in the position of human eye and the sun optical position
Between, the position of lightproof area B is calculated, the area of the lightproof area B is set according to the shape size of the sunlight；Institute
It states within the scope of lightproof area according to the light transmittance of the strength control liquid-crystalline glasses of the sunlight.Make lightproof area can be with the sun
Variation, head position movement of protected personnel of irradiating angle etc. change, and are automatically moved to corresponding position, keep forever
Between the eyes and external intense light source of protected personnel.It looks at the visual angle of protege, just has one in the position of the sun
Block shade covers, the glass of other parts be still it is transparent, the good visual field can be kept while blocking sunlight.
Usually liquid-crystalline glasses are all-transparent states, when detecting that outside has intense light source to irradiate to inside glass, utilize peace
Loaded on internal camera and face recognition technology, the position of all people's class eyes in protected field is positioned, analysis is passed through
Correspondence intense light source after calculating, using liquid crystal display drive circuit accurate control points battle array liquid-crystalline glasses, on lattice lcd glass
Position automatically generate one piece of lightproof area, keep off lightproof area just in the external strong light such as the eyes of protected personnel and the sun
Between source.Lightproof area can adjust transparency according to external light source intensity, and realizing still can see outside clearly in lightproof area
Scene.
In one embodiment, shield glass is replaced using dot matrix liquid-crystalline glasses, vehicle is powered on, outside windshield
Position, intensity, incident angle and the shape size of the photoreceptor collecting vehicle outer light source in portion；Judge whether the front side intensity of light source surpasses
Predetermined value is crossed, whether within a predetermined range predetermined value if more than then further judges irradiating angle, if in preset range
The image inside then acquired by Internal camera head further analyzes car portion position of human eye；According to the position of human eye and light source position
It sets, between the position of human eye and the light source position, the position of lightproof area is calculated, according to the shape size of the light source
The area of the lightproof area is set；According to the saturating of the strength control liquid-crystalline glasses of the light source within the scope of the lightproof area
Light rate.Keep off the lightproof area just between the eyes and external intense light source of protected personnel.Lightproof area can basis
External light source intensity adjusts transparency, and realizing still can see outside scene clearly in lightproof area, does not influence the normal of driver
It drives.It can be, but not limited to, further include that image feedback is carried out by Internal camera head, whether further monitor the lightproof area
The eye position of driver accurately has been blocked, if do not blocked accurately, the position of the lightproof area has further been adjusted, makes to hide
Light region is just kept off between the eyes and external intense light source of driver.
In addition, the present invention also provides a kind of liquid-crystalline glasses auto light-shading systems, as shown in Figure 3, comprising:
Illuminant module, the illuminant module for acquire in real time and the analysis position of external light source, intensity, incident angle and
Shape size；Face information acquisition module, the face information acquisition module acquire and calculate according to face recognition technology internal
Position of human eye；Analytical calculation module, the analytical calculation module are connect with the illuminant module and face information acquisition module, are used
Detect that the intensity of light source is greater than predetermined value and incident angle within a predetermined range in working as, according to the position of human eye and light source position
It sets, between the position of human eye and the light source position, the position of lightproof area is calculated, according to the shape size of the light source
The area of the lightproof area is set；Control module, the module of controlling are connect with the analytical calculation module, for described
According to the light transmittance of the strength control liquid-crystalline glasses of the light source within the scope of lightproof area.
It can be, but not limited to, the face information acquisition module utilizes the camera and recognition of face skill for being installed on inside
Art, the internal proprietary position of human eye of acquisition.The illuminant module is adopted in real time using external camera or photoreceptor is installed on
Collect position, intensity, incident angle and the shape size of light source.The liquid-crystalline glasses is lattice lcd glass or post soft liquid crystal
The glass of screen.
Using the controllable light transmission features of liquid-crystalline glasses, liquid-crystalline glasses is driven to generate lightproof area, block external intense light source with
Position between internal protege's eyes, and according to the movement of external intense light source and internal protege, shading is moved in real time
Real-time guard is realized in region.Solves the twinkling worry of strong light, and will not shelter from excessive area makes the visual field become smaller, no
Protege's activity is influenced, will not change because of the irradiating angle of external intense light source or the activity appearance of protege can not be complete
The problem of blocking entirely.
Embodiments described above does not constitute the restriction to the technical solution protection scope.It is any in above-mentioned implementation
Made modifications, equivalent substitutions and improvements etc., should be included in the protection model of the technical solution within the spirit and principle of mode
Within enclosing.
Claims (10)
1. a kind of liquid-crystalline glasses automatic shading method characterized by comprising
Position, intensity, incident angle and the shape size of analysis glass outer light source in real time；
When detecting that the intensity of light source is greater than predetermined value and incident angle within a predetermined range, then further analysis inside glass human eye
Position；
According to the position of human eye and light source position, between the position of human eye and the light source position, liquid-crystalline glasses are calculated
The area of the lightproof area is arranged according to the shape size of the light source for the position of upper lightproof area；
According to the light transmittance of the strength control liquid-crystalline glasses of the light source within the scope of the lightproof area.
2. a kind of liquid-crystalline glasses automatic shading method as described in claim 1, which is characterized in that further include, it is anti-according to image
Feedback monitors whether the lightproof area shelters from position of human eye, and the location and shape for otherwise further adjusting the lightproof area are big
It is small.
3. a kind of liquid-crystalline glasses automatic shading method as claimed in claim 2, which is characterized in that human eye position inside the analysis
It sets using face recognition technology.
4. a kind of liquid-crystalline glasses automatic shading method as claimed in claim 3, which is characterized in that using being installed on internal take the photograph
As the internal proprietary position of human eye of head acquisition.
5. a kind of liquid-crystalline glasses automatic shading method as claimed in claim 4, which is characterized in that using being installed on external take the photograph
As head or photoreceptor acquire position, intensity, incident angle and the shape size of light source in real time.
6. a kind of liquid-crystalline glasses automatic shading method as claimed in claim 5, which is characterized in that the liquid-crystalline glasses are dot matrix
Liquid-crystalline glasses or the glass for posting soft liquid crystal display.
7. a kind of liquid-crystalline glasses auto light-shading system characterized by comprising
Illuminant module, the illuminant module for acquire in real time and the analysis position of glass outer light source, intensity, incident angle and
Shape size；
Face information acquisition module, the face information acquisition module acquire and calculate inside glass people according to face recognition technology
Eye position；
Analytical calculation module, the analytical calculation module is connect with the illuminant module and face information acquisition module, for working as
Detect that the intensity of light source is greater than predetermined value and incident angle within a predetermined range, according to the position of human eye and light source position, In
Between the position of human eye and the light source position, the position of lightproof area on liquid-crystalline glasses is calculated, according to the shape of the light source
The area of the lightproof area is arranged in shape size；
Control module, the module of controlling are connect with the analytical calculation module, for the basis within the scope of the lightproof area
The light transmittance of the strength control liquid-crystalline glasses of the light source.
8. a kind of liquid-crystalline glasses auto light-shading system as claimed in claim 7, which is characterized in that the face information acquires mould
Block acquires internal proprietary position of human eye using internal camera and face recognition technology is installed on.
9. a kind of liquid-crystalline glasses auto light-shading system as claimed in claim 8, which is characterized in that the illuminant module utilizes peace
Acquire position, intensity, incident angle and the shape size of light source in real time loaded on external camera or photoreceptor.
10. a kind of liquid-crystalline glasses auto light-shading system as claimed in claim 9, which is characterized in that the liquid-crystalline glasses are point
Battle array liquid-crystalline glasses or the glass for posting soft liquid crystal display.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910593336.6A CN110501827A (en) | 2019-07-03 | 2019-07-03 | A kind of liquid-crystalline glasses automatic shading method and system |
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| CN201910593336.6A CN110501827A (en) | 2019-07-03 | 2019-07-03 | A kind of liquid-crystalline glasses automatic shading method and system |
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Cited By (5)
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| CN111156634A (en) * | 2020-02-24 | 2020-05-15 | 北方工业大学 | Interactive photo-thermal environment control system and method |
| CN111194126A (en) * | 2020-02-24 | 2020-05-22 | 北方工业大学 | Interactive sunshade system and method based on personnel positioning |
| CN113203072A (en) * | 2021-05-07 | 2021-08-03 | 北京中建建筑科学研究院有限公司 | Control method and system of shading device |
| CN114495510A (en) * | 2022-04-15 | 2022-05-13 | 四川九通智路科技有限公司 | Expressway Internet of things driving safety management system and method |
| TWI766756B (en) * | 2021-07-13 | 2022-06-01 | 陳宗億 | Electronic automatic control shading device |
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