CN201984452U - Widescreen interactive electronic whiteboard system - Google Patents
Widescreen interactive electronic whiteboard system Download PDFInfo
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- CN201984452U CN201984452U CN2010206172920U CN201020617292U CN201984452U CN 201984452 U CN201984452 U CN 201984452U CN 2010206172920 U CN2010206172920 U CN 2010206172920U CN 201020617292 U CN201020617292 U CN 201020617292U CN 201984452 U CN201984452 U CN 201984452U
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Abstract
The utility model provides a widescreen interactive electronic whiteboard system. The utility model breaks through a method of the present interactive electronic whiteboard system that only one projector is used, the utility model uses two or more ultra-short focal projectors combined with an edge blending projection splicing display technology, so as to increase display area and display resolution, and avoid shielding an optical path; and the utility model uses advanced electromagnetic technology to manufacture the large size widescreen interactive electronic whiteboard which has the advantages of simple structure, stable performance, easy installation and transportation. Combined with the present interactive electronic whiteboard, the width, the dimension, the definition (resolution), the brightness, etc. are remarkably improved in the utility model, thus more display contents, display modes and high definition resources are supported. In a teaching and training environment, function of the widescreen interactive electronic whiteboard system in the utility model covers three applications, i.e., traditional electronic whiteboard, blackboard and multimedia classroom, so that repetitive investment can be reduced, and it is convenient to concentratedly maintain and manage. Other than the field of education, the utility model also can be applied to the professional fields, such as exhibitions, conferences, tactical drills, etc.
Description
Technical field
The utility model is the multimedia interactive demonstration equipment, belongs to the interactive electric whiteboard of interactive electric whiteboard field, particularly multi-projector, super wide screen.Relate to ultrashort out-of-focus projection technology, edge fusion projection tiled display technology, electromagnetic induction numeral location technology, image recognition technology etc.Have functions such as Hu Dong ﹑ Shu Xie ﹑ Jie Tu ﹑ film recording, derivation, network, particularly have super large, high definition, characteristics such as highlighted.Its main application is an education sector, in addition can both allow communication and demonstration efficient promote greatly in professional domains such as commercial activity, meeting, skill practice.
Background technology
Interactive electric whiteboard is started to walk early abroad, and existing 20 years history has complete product and technical solution, in the whole world in occupation of the important market share.Though entered Chinese market in 1997, still do not form a complete industry up to 2006.2007, electronic whiteboard had cognitive widely at home, and particularly education sector to the favor of interactive electric whiteboard, makes it continuous 3 years rapid growth occur in the IT application in education sector process.Local enterprise's constantly perfect through in a few years, product has possessed the strength that contends with foreign brand name on technology and quality, broken away from the monopolization of foreign brand name.
Present interactive electric whiteboard system mainly is made up of computing machine, single portion projector, electronic whiteboard and blank software, but electromagnetic induction interactive formula electronic whiteboard also needs the pen of special-purpose launching electromagnetic wave.Computer-internal is preserved multimedia presentation manuscript and blank software, and outside projector and the electronic whiteboard of connecting is the control core of total system, i.e. controller; Projector is responsible for desktop contents Projection Display with computing machine on electronic whiteboard; Mutual input equipment (special pens, hand, teacher's pointer etc.) replaces mouse to write on blank or operate; Electronic whiteboard is accurately located input, gives computing machine with information feedback such as position and tracks; Blank software receives the information that electronic whiteboard sends, input is discerned, show according to current desktop contents or with the literal write, image and be converted to electronic document, perhaps operation response, as run application, to file preserve, online etc.
Because interactive electric whiteboard (hereinafter to be referred as electronic whiteboard) can be constructed a giant-screen, interactively cooperative association negotiation teaching environment, particularly realized dust-free writing, arbitrarily write, and content can derive at any time, operating process can be recorded a video at any time, therefore enjoy liking of education sector, account for 91% of total purchase amount.Even so, on classroom now, electronic whiteboard can not replace traditional blackboard, usually is the combination that a blackboard adds the lastblock blank in the classroom.The teacher still writes writing on the blackboard with traditional blackboard, and electronic whiteboard mainly is to carry out aided education, carries out multimedia show etc., though function is powerful, utilization factor is not high in fact.
Tracing it to its cause, mainly is the size and the displaying ratio problem of electronic whiteboard.Existing interactive electric whiteboard system uses projector of single portion, is subjected to the restriction of its drop shadow spread and resolution, and the ratio of width to height of electronic whiteboard is generally 4:3 or 16:9, and width is no more than 2 meters substantially, greatly differs from each other with traditional blackboard.Can only write a plate if the teacher writes writing on the blackboard, wait the student to make a copy of the back deletion and write next version again, have a strong impact on the efficient of giving lessons; If the broadcast courseware, then the high definition teaching resource also can't normal presentation, as large-scale map, accurate machine construction etc., has limited the range of application of electronic whiteboard.In addition; because factors such as cost, classroom distance restriction; school mainly uses is some front projection type electronic whiteboard of low price; be that projector is placed in mobile go-cart or is installed on the ceiling; from the front with image projection to blank; teacher self is blocked projecting light path through regular meeting when giving lessons, make demonstration imperfect, exchange and to have some setbacks.
If the size of electronic whiteboard can be accomplished the same with traditional blackboard wide, solve multi-screen writing on the blackboard problem; If all corresponding expansion of the scope of Projection Display and resolution solves high definition film source showing problem; If can solve the light path occlusion issue; Existing in addition multimedia teaching function, it certainly will thoroughly replace traditional blackboard in future, become dustless " blackboard " unique in the classroom.
In the problems referred to above, the easiest solution of light path occlusion issue.Ultrashort Jiao is the hottest technique direction of field of projector nowadays, and wherein the A6 of Hitachi, A8, A10 have represented the ultrashort out-of-focus projection of state-of-the-art positive projection technology.For example, A10 can have only 9.6 centimetres, body bottom surface to have only apart from screen under 28.9 centimetres the situation at the fuselage forefront apart from screen, project 60 inches picture.Therefore, if ultrashort out-of-focus projection machine is installed near directly over the electronic whiteboard, then can greatly reduce to occur the scope that light path is blocked, and along with the ultrashort burnt development of technology of projector, this problem can improve further and solve thereupon.
Next is size and the ratio of width to height problem of electronic whiteboard.It is difficult and impossible that the object transport that the size design of existing Lift ﹠ Stairs makes size surpass 2.4 meters becomes, for guaranteeing carrying smoothly and transportation, rigidity such as base plate, frame can be formed Component Design and become conveniently the small size parts of disassembling, assembling, for example, if the design width of electronic whiteboard is 3 meters, base plate and frame can be designed to disassemble is 2 1.5 meters wide splicing assembly; Simultaneously, for avoiding occurring fighting recklessly seam, and keep the flatness of blank, can adopt the hard curtain of a monoblock that can be curled into tubular as display medium; Electromagnetic induction numeral location technology does not have size restrictions, the existing electromagnetic membrane thickness 1mm that only has an appointment, and can fold.
Be the problem that enlarges drop shadow spread, improves display resolution at last.This problem can be utilized a kind of novel seamless tiled display technology that emerges rapidly recently: edge large screen-fused projection tiled display technology solves.This technology is used one group of projector's projection high definition picture, by image being cut, geometry correction, imbricate, lightly advancing to fade out to merge processing such as tape handling, color correction, luminance proportion, demonstrate finally that brightness is even, seamless, large scale, high-resolution view picture picture, the effect of picture similarly is to cast out from a projector.
Summary of the invention
Little (width is less than 2 meters in order to solve in the existing interactive electric whiteboard system electronic whiteboard size, the ratio of width to height is 4:3 or 16:9), display resolution low (1024 * 768), light path such as blocks at problem, the utility model provides a kind of widescreen interactive electric whiteboard system, its electronic whiteboard size can reach and surpass 3 meters * 1.2 meters, displaying ratio can reach and surpass 3.5:1, display resolution can reach and surpass 3500 * 1080, satisfy accurate high definition 720P (1280 * 720) and high definition 1080P(1920 * 1080 fully) resource criterion, and almost do not have the light path occlusion issue.
The technical scheme that its technical matters that solves the utility model adopts is: break through existing interactive electric whiteboard system and only adopt the way of projector of single portion, use two ones or the ultrashort out-of-focus projection of multi-section machine, merge projection tiled display technology with the edge and combine, when increasing indication range and display resolution, avoid light path to block; Utilize existing electromagnetic induction numeral location technology, realize the interactive function of blank; Not only support all functions of existing blank, and size is big, simple in structure, stable performance, be easy to dismounting, install and transportation.
The utility model widescreen interactive electric whiteboard (hereinafter to be referred as the widescreen electronic whiteboard) system is constructed as follows:
The ultrashort out-of-focus projection of multi-section machine, widescreen electronic whiteboard, fusion machine, show, and software and blank software are spliced in edge fusion projection with hardware devices such as mechanical, electrical magnetic induction pen, penholder, electromagnetism wipings, audio amplifiers.Also fusion machine and demonstration can be united two into one with machine, to reduce system architecture complexity and cost.Two kinds of system architectures have relative merits and application scenario separately, see the description in the embodiment for details.
Displaying contents such as courseware, resource, manuscript are moved in showing with the machine system, fusion software in the fusion machine (or showing the machine of using) is gathered (or intercepting) in real time and is shown the desktop picture with machine, carry out geometry correction, the processing of image cutting scheduling algorithm, desktop picture is projected on the widescreen electronic whiteboard by a plurality of ultrashort out-of-focus projections machine, make the resolution of displayed images height, seamless, brightness is even; When time writer is write on the widescreen electronic whiteboard, the position and the track of widescreen electronic whiteboard induced electricity magnetic pen, send information to showing the machine of using by USB wired connection or RF wireless connections mode, show with the reception of blank software and identifying information and trigger corresponding operation and function in the machine.
The utility model widescreen interactive electric whiteboard system, its concrete feature is:
1. adopt the ultrashort out-of-focus projection of multi-section machine, when avoiding light path to block, increase drop shadow spread and display resolution; Projector's number can be adjusted according to blank width and projector's resolution more than or equal to two.
2. the widescreen electronic whiteboard is made up of for three layers screen, electromagnetic membrane, backboard; Screen is positioned at top layer, is display medium, adopts one whole hard curtain that can be curled into barreled, and thickness is about 2.5 millimeters, and not only avoided fighting recklessly seam but also had good wearability, and to doing gain and reflected light is handled to support to merge demonstration in its surface; Electromagnetic membrane is positioned at the middle layer, is one whole folding film, and thickness is about 1 millimeter, and it is connected with machine with demonstration by USB wireline interface or RF wave point, is responsible for induced electricity magnetic pen position and also sends positional information; Backboard is positioned at bottom, and super flat, the resistance to deformation sheet material butt joint less with size form, and is used to keep the flatness and the convenient transportation of screen and electromagnetic membrane; Three layers gum down and are fixed with frame.
3. the positive left and right sides of widescreen electronic whiteboard is provided with shortcut, comprises functions such as screen is annotated and commented on, the page is roamed, preserved, selects, cancels, to simplify and handled easily; Electromagnetic pen can analog mouse move, left button, three kinds of states of right button, and roaming function is arranged; Penholder can be fixed on the side frame of blank, conveniently takes electromagnetic pen; The electronics person's handwriting can be wiped with electromagnetism.
4. the ratio of width to height of widescreen electronic whiteboard can reach and surpass 3.5:1, and display resolution can reach and surpass 3500 * 1080, satisfies accurate high definition 720P (1280 * 720) and high definition 1080P(1920 * 1080) resource criterion.
5. the minimum design dimension of widescreen electronic whiteboard is 3 meters * 1.2 meters, except that screen and electromagnetic membrane all are an integral body and can curl or be folded into the reduced size that other parts all are disassembled, with instant packed, transportation and carrying.
6. mounting edge merges projection splicing software in the fusion machine, be responsible for gathering in real time or intercepting the desktop picture that shows with machine, carry out geometry correction, image cutting, the light fusion tape handling of advancing to fade out, color correction, the processing of luminance proportion scheduling algorithm, finish super large, high definition, the highlighted demonstration of desktop picture on the widescreen electronic whiteboard; Software has zero offset capability, makes the debugging of system and maintenance quick, convenient.
7. show with blank software is installed in the machine, be responsible for position and trace information that reception and identification electromagnetic membrane send, and trigger corresponding operation or function.
8. can be used as a kind of basis of realizing the widescreen interactive electric whiteboard system; every variation of under enlightenment of the present utility model, making; or with the utlity model has identical or close technical scheme; comprise infrared technique, pressure sensitivity technology, electromagnetic technique etc., all fall within the protection domain of the present utility model.
The beneficial effects of the utility model are: on the basis that keeps original function, make existing electronic whiteboard remarkable lifting all be arranged, thereby can support more displaying contents, display mode and high definition resource at aspects such as width, size, sharpness (resolution), brightness.Compare with oversize flat-panel monitor (more than 64 cun), cost is lower, interactivity is stronger.In teaching environment, its function has contained conditional electronic blank, blackboard and three kinds of application of multi-media classroom, can reduce user's overlapping investment, is convenient to centralized maintenance, management.Beyond education sector, can also do exhibition Zhan Shi ﹑ meeting explanation annotations and comments etc.
Description of drawings
Fig. 1 is that the utility model has independent fusion machine and the demonstration system construction drawing of machine.
Fig. 2 is that the utility model will merge machine and show the two-in-one system construction drawing of the machine of using.
Fig. 3 is the physical arrangement figure of widescreen interactive electric whiteboard in the utility model.
Among the figure, 1. fusion machine 2. shows the machine of using, 3. audio amplifier, 4. ultrashort out-of-focus projection unit, 5. widescreen interactive electric whiteboard, 6. electromagnetic pen and penholder, 7. screen, 8. electromagnetic membrane, 9. backboard, 10. frame, 11. shortcuts.
Embodiment
Fig. 1 is the system construction drawing that independent fusion machine is arranged and show the machine of using.Fusion software is arranged in fusion machine (1), and the VGA/DVI acquisition function is arranged; Fusion machine (1) links to each other with ultrashort out-of-focus projection unit (3) with machine (2) with demonstration, be responsible for gathering the desktop displaying contents that shows with machine (2), carry out image cutting, geometry correction, fusion tape handling, color correction, the processing of luminance proportion scheduling algorithm, the image after the processing is exported to ultrashort out-of-focus projection unit (4) respectively; Ultrashort out-of-focus projection unit (4) projects image on the widescreen electronic whiteboard (5) simultaneously according to certain overlapping region, obtains and show using the identical picture of machine desktop displaying contents; Show with machine (2) to be connected with fusion machine (1), audio amplifier (3) and widescreen electronic whiteboard (4) simultaneously, comprise various courseware resources and show content, and blank software; Blank software receives input position and the trace information that widescreen electronic whiteboard (5) sends, and writes, shows alternately and corresponding operation to support electromagnetic pen (6).
In Fig. 1 system, show with the effect of machine (2) identical with the controller effect in the legacy interactive electric whiteboard system, fusion machine (1) is responsible for the function that the high resolving power widescreen shows specially, and therefore any desktop computer or notebook computer that blank software (free usually) has been installed can be as the demonstration machine.Teacher or speaker can put PowerPoint in order on the notebook computer of office or family, just can finish demonstration at the demonstration scene connecting system, and be very convenient flexible.But this system is owing to have fusion machine hardware and the emerging system that has acquisition function, and cost is than higher.
Fig. 2 is with the fusion machine and shows with the two-in-one system construction drawing of machine.Fusion software and blank software all are arranged in and show with machine (2); Show with machine (2) and connect audio amplifier (3), ultrashort out-of-focus projection unit (4) and widescreen electronic whiteboard (5).Fusion software starts the desktop fusion function, and intercepting shows with the desktop display image of machine (2), carry out algorithm process, and the image after will handling exported to ultrashort out-of-focus projection unit (4); Identical with Fig. 1, ultrashort out-of-focus projection unit (4) projects image on the widescreen electronic whiteboard (5) simultaneously according to certain overlapping region, obtains and show using the identical picture of machine desktop contents; Show with the blank software in the machine (2) to receive input position and the trace information that widescreen electronic whiteboard (5) sends, write, show alternately and corresponding operation to support electromagnetic pen (6).
Fig. 2 system is not owing to merge machine, and fusion software does not need acquisition function yet, so cost is relatively low.But, because of showing with machine is the custom-built machine that fusion software (charge) has been installed, courseware resource of showing and PowerPoint etc. need leave in the USB external equipments such as USB flash disk, portable hard drive, problems such as system environments, the software compatibility may occur, thereby cause the demonstration failure.
Fig. 3 is the physical arrangement figure of electromagnetic induction interactive widescreen electronic whiteboard.Form by screen (7), electromagnetic membrane (8), backboard (9) and frame (10).Screen (7) is a display medium, is positioned at top layer; Electromagnetic membrane (8) is an induction medium, is positioned at the middle layer; Backboard (9) is used to keep the flatness of screen (7) and electromagnetic membrane (8), is positioned at bottom; Be convenient transportation, adopt polylith backboard docking mode; Three layers gum down and are fixed with frame (10).Shortcut (11) is affixed on the positive left and right sides of screen (7), triggers various feature operations with convenient, as screen switchings, screen annotations and comments, newly-built blank page or leaf, delete page, skip, the page is roamed, cancel, preservation etc.
Claims (6)
1. widescreen interactive electric whiteboard system, hardware device comprises the ultrashort out-of-focus projection of multi-section machine, widescreen electronic whiteboard, fusion machine, shows with mechanical, electrical magnetic induction pen, penholder, electromagnetism and wipe and audio amplifier, it is characterized in that: show to be connected with multi-section projector by the fusion machine, show with machine simultaneously to be connected with audio amplifier with the widescreen electronic whiteboard with machine.
2. widescreen interactive electric whiteboard system according to claim 1 is characterized in that: adopt the ultrashort out-of-focus projection of multi-section machine, number is adjusted according to blank width and projector's resolution more than or equal to two.
3. widescreen interactive electric whiteboard system according to claim 1 is characterized in that: the widescreen electronic whiteboard is made up of for three layers screen, electromagnetic membrane, backboard; Screen is positioned at top layer, is display medium, adopts one whole hard curtain that can be curled into barreled, and thickness is about 2.5 millimeters, and gain is done on its surface and reflected light is handled; Electromagnetic membrane is positioned at the middle layer, is one whole folding film, and thickness is about 1 millimeter, and it is connected with machine with demonstration by USB wireline interface or RF wave point; Backboard is positioned at bottom, forms with super flat, resistance to deformation sheet material butt joint; Three layers gum down and are fixed with frame.
4. widescreen interactive electric whiteboard system according to claim 1 is characterized in that: the positive left and right sides of widescreen electronic whiteboard is provided with shortcut; Electromagnetic pen can analog mouse move, left button, three kinds of states of right button, and roaming function is arranged; Penholder can be fixed on the side frame of blank; The electronics person's handwriting can be wiped with electromagnetism.
5. widescreen interactive electric whiteboard system according to claim 1, it is characterized in that: the ratio of width to height of widescreen electronic whiteboard can reach and surpass 3.5: 1, display resolution can reach and surpass 3500 * 1080, satisfies accurate high definition 720P and high definition 1080P resource criterion.
6. widescreen interactive electric whiteboard system according to claim 1, it is characterized in that: the minimum design dimension of widescreen electronic whiteboard is 3 meters * 1.2 meters, except that screen and electromagnetic membrane all be an integral body and can curl or folding, other parts all are disassembled.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2010206172920U CN201984452U (en) | 2010-11-22 | 2010-11-22 | Widescreen interactive electronic whiteboard system |
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| CN2010206172920U CN201984452U (en) | 2010-11-22 | 2010-11-22 | Widescreen interactive electronic whiteboard system |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103176665A (en) * | 2011-12-21 | 2013-06-26 | 纬创资通股份有限公司 | Optical touch display device and portable optical touch device thereof |
| CN105788382A (en) * | 2016-05-24 | 2016-07-20 | 华北理工大学 | Multimedia teaching equipment |
| CN105931499A (en) * | 2016-06-27 | 2016-09-07 | 山西大学 | Electronic blackboard system and method for using electronic teaching resources |
| CN106257923A (en) * | 2015-06-22 | 2016-12-28 | 精工爱普生株式会社 | Image display system and method for displaying image |
| US9740367B2 (en) | 2015-06-30 | 2017-08-22 | Coretronic Corporation | Touch-based interaction method |
| CN107219962A (en) * | 2017-05-24 | 2017-09-29 | 苏州品美信息科技有限公司 | A kind of modularized touch control projection blackboard |
| CN108646951A (en) * | 2018-07-19 | 2018-10-12 | 苏州腾邦科技有限公司 | It can write and project simultaneously the electronic whiteboard of storage |
| CN111105714A (en) * | 2019-12-20 | 2020-05-05 | 维沃移动通信有限公司 | Display module and electronic equipment |
-
2010
- 2010-11-22 CN CN2010206172920U patent/CN201984452U/en not_active Expired - Fee Related
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103176665A (en) * | 2011-12-21 | 2013-06-26 | 纬创资通股份有限公司 | Optical touch display device and portable optical touch device thereof |
| CN103176665B (en) * | 2011-12-21 | 2016-01-20 | 纬创资通股份有限公司 | Optical touch display device and portable optical touch device thereof |
| CN106257923A (en) * | 2015-06-22 | 2016-12-28 | 精工爱普生株式会社 | Image display system and method for displaying image |
| CN106257923B (en) * | 2015-06-22 | 2020-04-14 | 精工爱普生株式会社 | Image display system and image display method |
| US9740367B2 (en) | 2015-06-30 | 2017-08-22 | Coretronic Corporation | Touch-based interaction method |
| CN105788382A (en) * | 2016-05-24 | 2016-07-20 | 华北理工大学 | Multimedia teaching equipment |
| CN105931499A (en) * | 2016-06-27 | 2016-09-07 | 山西大学 | Electronic blackboard system and method for using electronic teaching resources |
| CN107219962A (en) * | 2017-05-24 | 2017-09-29 | 苏州品美信息科技有限公司 | A kind of modularized touch control projection blackboard |
| CN108646951A (en) * | 2018-07-19 | 2018-10-12 | 苏州腾邦科技有限公司 | It can write and project simultaneously the electronic whiteboard of storage |
| CN111105714A (en) * | 2019-12-20 | 2020-05-05 | 维沃移动通信有限公司 | Display module and electronic equipment |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Advantage development (Beijing) Technology Co., Ltd. Assignor: Li Wei|Fan Zhijiang Contract record no.: 2012990000668 Denomination of utility model: Widescreen interactive electronic whiteboard system Granted publication date: 20110921 License type: Exclusive License Record date: 20120912 |
|
| LICC | Enforcement, change and cancellation of record of contracts on the licence for exploitation of a patent or utility model | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110921 Termination date: 20191122 |