CN104902200A - Projector with human eye recognition protection system - Google Patents
Projector with human eye recognition protection system Download PDFInfo
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- CN104902200A CN104902200A CN201510279230.0A CN201510279230A CN104902200A CN 104902200 A CN104902200 A CN 104902200A CN 201510279230 A CN201510279230 A CN 201510279230A CN 104902200 A CN104902200 A CN 104902200A
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- projector
- eye recognition
- guard system
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Abstract
The invention provides a projector with a human eye recognition protection system. The human eye recognition protection system is arranged in the projector and comprises at least a recognition element and at least a detection element. Both the recognition element and the detection element are arranged at the same side of the lens of the projector. The detection element and the recognition element are in signal connection. The human eye recognition protection system also comprises a processing unit and a control unit. The processing unit and the detection element are in signal connection. The control unit is in signal connection with the recognition element and the processing unit. The projector is in signal connection with the control unit, can produce a projection image and projects the projection image to a projection area. According to the structure, the technical problem of application of the human eye recognition protection system in the projector is solved, and good effects of energy conservation, environment protection and no harm to human body are realized.
Description
Technical field
The present invention relates to a kind of projector, refer in particular to a kind of projector with eye recognition guard system.
Background technology
Along with the improvement optimization of projector light source system, the brightness of projector is also in continuous lifting.Projector is high-brightness projection machine particularly, can project high light in the normal process used, and enters in projector region or children's curiosity directly spies on projector lens when there being people, and similar situation occurs often.
After the light direct projection human eye of projector, eyes are adjusted to light adaptation state very soon, the light of excessive brightness allows in people's short time and produces dazzling sense of discomfort of dazzling the eyes, visual sensitivity and resolving power reduce, meet accident (such as fall down, encounter object etc.) most probably, the life and health safety of harm people and other property safeties.Further, brightness more high-light-energy is higher, and when illumination is mapped on object, object will absorb luminous energy and temperature raises.Particularly when human eye from projector lens distance very close to time, temperature even can reach the threshold value destroying cellula visualis tissue, and therefore projector can cause permanent damage to eyesight.
Therefore, get involved or be about to get involved projector region when human eye (herein " projector region and human eye are about to intervention but outside the projector region of not getting involved region among a small circle " to be defined as " effective coverage ", " get involved with appearance of descending to the mortal world or be about to get involved projector region ", all replace with " intervention effective coverage ") time, when particularly human eye is closely got involved, this projector should be able to not show or picture automatic distinguishing by control interface, to protect the life and health safety of people, and when human eye leave or human eye not in effective coverage, picture display should be able to recover in this projector or picture is normally opened.
Summary of the invention
For solving the problems of the technologies described above, main purpose of the present invention is to provide a kind of projector with eye recognition guard system, it identifies that human eye is got involved or is about to get involved projector region and control projected picture with this do not show or picture automatic distinguishing, thus reaches the object being conducive to health.
For reaching above-mentioned purpose, the technical scheme of the present invention's application is: a kind of projector with eye recognition guard system, wherein: eye recognition guard system to be located in projector and to be comprised at least one discriminating element and at least one detecting element, discriminating element and detecting element are all located at the same side of projector lens, and detecting element is connected with discriminating element signal; Also will comprise a processing unit and a control unit, processing unit is connected with detecting element signal, and control unit is connected with discriminating element and processing unit signal respectively, and projector is connected with control unit signal and can produces projected picture and be projected to projected area.
Preferred in embodiments of the present invention, discriminating element is at least one infrared induction detector, the infrared ray that in infrared induction detector real-time detection effective coverage, human body radiation goes out.
Preferred in embodiments of the present invention, infrared induction detector comprises infrared probe and amplifying circuit, and infrared probe comprises pyroelectricity element.
Preferred in embodiments of the present invention, detecting element is at least one camera.
Preferred in embodiments of the present invention, processing unit at least includes image processor, and image processor is connected with amplifying circuit and camera signals respectively, is also connected with control unit signal.
Preferred in embodiments of the present invention, control unit is connected with image processor and amplifying circuit signal respectively, and has switch switching circuit.
Preferred in embodiments of the present invention, eye recognition guard system also comprises LED, and wherein switch switching circuit is connected with LED, projector's signal respectively.
Preferred in embodiments of the present invention, camera adopts high definition line camera.
Preferred in embodiments of the present invention, camera is the responsive CCD of thermal infrared.
Compared with prior art, its useful effect: is the spirit based on hommization, according to the change of human eye present position, controls projector lens and opens or close, in order to avoid damage people and property in the present invention; Two is first according to judging whether front has the conceptual design of people's (live body), it is not by people's (prosthese) image contributions in projector picture, arrive again and whether have human eye position, finally control projector's change, relatively low to hardware requirement under this scheme, processing unit is that trigger-type runs, and reduces its processing load, energy consumption reduces, and meets environmental protection purport; Three is propose " effective coverage " concept, and when user is outside active domain, projector does not trigger, and when user is about to enter projected area, triggers the movement locus of projector anticipation user, determines whether respond effect.The identification human eye of projector and protection are forever prior to user, and thus eyes of user can not suffer high light.
Accompanying drawing explanation
Fig. 1 is embodiment of the present invention frame structure schematic diagram.
Fig. 2 is embodiment of the present invention frame structure principle schematic.
Fig. 3 is projector effective coverage schematic diagram in the embodiment of the present invention.
Fig. 4 is eye recognition frame structure schematic flow sheet in the embodiment of the present invention.
Fig. 5 is the frame structure schematic diagram of eye recognition guard system in the embodiment of the present invention.
Fig. 6 is the specific embodiment frame structure schematic diagram of the embodiment of the present invention.
Fig. 7 is the using state schematic diagram of the embodiment of the present invention.
Embodiment
Below in conjunction with specific embodiment and accompanying drawing, the present invention is described in further detail.Be described below in detail embodiments of the invention, the example of described embodiment is shown in the drawings, and wherein same or similar label represents same or similar element or has element that is identical or similar functions from start to finish.Being exemplary below by the embodiment be described with reference to the drawings, only for explaining technical scheme of the present invention, and should not resolving to limitation of the present invention.
In describing the invention, term " interior ", " outward ", " longitudinal direction ", " transverse direction ", " on ", D score, " top ", the orientation of the instruction such as " end " or position relationship be based on orientation shown in the drawings or position relationship, be only the present invention for convenience of description instead of require that the present invention with specific azimuth configuration and operation, therefore must should not resolve to limitation of the present invention.
Referring to Fig. 1 and combining consults shown in Fig. 2 to Fig. 7, the invention provides a kind of projector with eye recognition guard system, wherein: eye recognition guard system is located at projector 100(as Fig. 1, Fig. 5) in and at least one discriminating element 10 will be comprised be located at projector lens 101 homonymy; Also will comprise at least one detecting element 20 and be located at projector lens 101 homonymy, detecting element 20 is connected with discriminating element 10 signal; Also will comprise processing unit 30 and a control unit 40, processing unit 30 is connected with detecting element 20 signal, control unit 40 is connected with processing unit 30 signal with discriminating element 10 respectively, projector 100 is connected with control unit 40 signal, and can produce projected picture and be projected to projected area (for the picture area that projector goes out) 200(as shown in Figure 3).
Please combining consults shown in Fig. 2 again, discriminating element 10 be at least one infrared induction detector 11(as shown in Figure 6), the infrared ray that in infrared induction detector 11 real-time detection effective coverage (more bigger than projected area) 201, human body radiation goes out.When infrared induction detector 11 does not receive the infrared ray that human body radiation goes out, the pyroelectricity element (not shown) that infrared probe 111 comprises is in charge balance state or the state that restores balance, after differentiating this state, control unit 40 directly controls projector 100 and is in normal display/unlatching picture; When infrared induction detector 11 receives the infrared ray that human body radiation goes out, pyroelectricity element (not shown) can discharge electric charge and lose charge balance state, electric charge is again through amplifying circuit (as infrared induction control chip) 112, after differentiating this state, detecting element 20 brings into operation, detecting element 20(is as shown in Figure 6) be at least one camera 21, receive people by infrared induction detector 11 and get involved effective coverage 201, trigger the image data that camera 21 captures effective coverage 201 continuously, be for further processing with this raw video data S1.In order to various light condition can be adapted to and can capture high-quality image data continuously, camera 21 adopts high definition line camera, can ensure that human eye can capture clear effective image data in intervention projected area under not getting involved the low light conditions of effective coverage 201.In the present embodiment, detecting element 20 is the responsive CCD of at least one thermal infrared, receive people by infrared induction detector 11 and get involved effective coverage, trigger the thermal imaging data that the responsive CCD of thermal infrared captures effective coverage continuously, do further process with these raw video data.In the present embodiment, processing unit 30 at least includes image processor 31(as Fig. 6), image processor 31 is also connected with control unit 40 signal while being connected with amplifying circuit 112 and camera 21 signal respectively.In the present embodiment, control unit 40 is connected with image processor 31 and amplifying circuit 112 signal respectively and has switch switching circuit 41(as Fig. 6), switch switching circuit 41 is connected with LED, projector 100 signal.
Please combining consults shown in Fig. 4 again, is the eye recognition flow chart with the projector of eye recognition guard system that the present invention proposes.After processing unit 30 receives raw video data S1, difference is to a certain degree had because camera 21 captures the view data that obtains and true picture, and this species diversity can directly affect the parsing of processing unit 30 for true picture, therefore processing unit 30 will carry out noise reduction, strengthen process image.After noise reduction, enhancing treatment S 2, also comprise many incoherent data in data, therefore processing unit 30 will carry out Image Edge-Detection S3 process to image, only retains the important feature attribute of image, weeds out incoherent data.After image edge processing S3, processing unit 30 operation image dividing processing S4, image is divided into part not overlapping mutually, the part after these are divided will represent different objects (comprising human eye and face), guarantee to identify further in each several part whether comprise people's (eye) face.Processing unit 30 extracts the characteristics of image (color, shape, corresponding relation etc.) of the rear each several part of segmentation, carries out similarity mode respectively with people's (eye) face template S6 preset; When similarity reaches certain threshold value, judge to comprise human eye in effective coverage 201, processing unit 30 will send out code to control unit 40, control unit 40 controls projector 100 by switch switching circuit 41 and closes projected picture (LED is opened simultaneously), to protect life and health safety and other property safety of people; Otherwise when similarity does not reach ratio, processing unit 30 will send OPEN to control unit 40, control unit 40 will control projector 100 by switch switching circuit 41 and will normally show/open picture (LED is closed simultaneously).
Claims (9)
1. one kind has the projector of eye recognition guard system, it is characterized in that: eye recognition guard system to be located in projector and to be comprised at least one discriminating element and at least one detecting element, discriminating element and detecting element are all located at the same side of projector lens, and detecting element is connected with discriminating element signal; Also will comprise a processing unit and a control unit, processing unit is connected with detecting element signal, and control unit is connected with discriminating element and processing unit signal respectively, and projector is connected with control unit signal and can produces projected picture and be projected to projected area.
2. there is the projector of eye recognition guard system as claimed in claim 1, it is characterized in that: discriminating element is at least one infrared induction detector, the infrared ray that in infrared induction detector real-time detection effective coverage, human body radiation goes out.
3. have the projector of eye recognition guard system as claimed in claim 2, it is characterized in that: infrared induction detector comprises infrared probe and amplifying circuit, infrared probe comprises pyroelectricity element.
4. there is the projector of eye recognition guard system as claimed in claim 3, it is characterized in that: detecting element is at least one camera.
5. have the projector of eye recognition guard system as claimed in claim 4, it is characterized in that: processing unit at least includes image processor, image processor is connected with amplifying circuit and camera signals respectively, is also connected with control unit signal.
6. there is the projector of eye recognition guard system as claimed in claim 5, it is characterized in that: control unit is connected with image processor and amplifying circuit signal respectively, and has switch switching circuit.
7. have the projector of eye recognition guard system as claimed in claim 6, it is characterized in that: eye recognition guard system also comprises LED, wherein switch switching circuit is connected with LED, projector's signal respectively.
8. there is the projector of eye recognition guard system as claimed in claim 7, it is characterized in that: camera adopts high definition line camera.
9. there is the projector of eye recognition guard system as claimed in claim 7, it is characterized in that: camera is the responsive CCD of thermal infrared.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510279230.0A CN104902200A (en) | 2015-05-28 | 2015-05-28 | Projector with human eye recognition protection system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510279230.0A CN104902200A (en) | 2015-05-28 | 2015-05-28 | Projector with human eye recognition protection system |
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| CN104902200A true CN104902200A (en) | 2015-09-09 |
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| CN201510279230.0A Pending CN104902200A (en) | 2015-05-28 | 2015-05-28 | Projector with human eye recognition protection system |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108124144A (en) * | 2016-11-29 | 2018-06-05 | 中兴通讯股份有限公司 | A kind of method for controlling projection and device |
| CN111045283A (en) * | 2018-10-15 | 2020-04-21 | 中强光电股份有限公司 | Projector and projection method |
| CN111163365A (en) * | 2018-11-08 | 2020-05-15 | 比亚迪股份有限公司 | Projection system and control method thereof |
| WO2021114965A1 (en) * | 2019-12-13 | 2021-06-17 | 深圳光峰科技股份有限公司 | Projection display control method and device, and projection system |
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| CN102103259A (en) * | 2009-12-18 | 2011-06-22 | 深圳市巨龙科教高技术股份有限公司 | Device and method for preventing strong light irradiation of projector |
| CN201927050U (en) * | 2010-09-30 | 2011-08-10 | 深圳市中控生物识别技术有限公司 | Face recognition device with infrared human body sensing function |
| CN102830583A (en) * | 2012-09-28 | 2012-12-19 | 苏州鼎雅电子有限公司 | Eye shield projection method |
| CN102914936A (en) * | 2012-09-20 | 2013-02-06 | 深圳雅图数字视频技术有限公司 | Method and device for controlling projector |
| CN203840466U (en) * | 2014-04-18 | 2014-09-17 | 江苏宜清光电科技有限公司 | Human body induction automatic protection projector |
| CN104601917A (en) * | 2015-01-26 | 2015-05-06 | 苏州佳世达光电有限公司 | Eye protection projection method and device |
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| US20080129965A1 (en) * | 2006-12-05 | 2008-06-05 | Seiko Epson Corporation | Projector |
| TWM332874U (en) * | 2007-10-26 | 2008-05-21 | Everest Display Inc | Projection device with eye protection |
| CN102103259A (en) * | 2009-12-18 | 2011-06-22 | 深圳市巨龙科教高技术股份有限公司 | Device and method for preventing strong light irradiation of projector |
| CN101795375A (en) * | 2009-12-30 | 2010-08-04 | 广东威创视讯科技股份有限公司 | Device for displaying projection and method for controlling projection |
| CN201927050U (en) * | 2010-09-30 | 2011-08-10 | 深圳市中控生物识别技术有限公司 | Face recognition device with infrared human body sensing function |
| CN102914936A (en) * | 2012-09-20 | 2013-02-06 | 深圳雅图数字视频技术有限公司 | Method and device for controlling projector |
| CN102830583A (en) * | 2012-09-28 | 2012-12-19 | 苏州鼎雅电子有限公司 | Eye shield projection method |
| CN203840466U (en) * | 2014-04-18 | 2014-09-17 | 江苏宜清光电科技有限公司 | Human body induction automatic protection projector |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108124144A (en) * | 2016-11-29 | 2018-06-05 | 中兴通讯股份有限公司 | A kind of method for controlling projection and device |
| WO2018099247A1 (en) * | 2016-11-29 | 2018-06-07 | 中兴通讯股份有限公司 | Projection control method and device |
| CN111045283A (en) * | 2018-10-15 | 2020-04-21 | 中强光电股份有限公司 | Projector and projection method |
| CN111163365A (en) * | 2018-11-08 | 2020-05-15 | 比亚迪股份有限公司 | Projection system and control method thereof |
| CN111163365B (en) * | 2018-11-08 | 2021-07-30 | 比亚迪半导体股份有限公司 | Projection system and control method thereof |
| WO2021114965A1 (en) * | 2019-12-13 | 2021-06-17 | 深圳光峰科技股份有限公司 | Projection display control method and device, and projection system |
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Application publication date: 20150909 |
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