CN103729097B - The method simultaneously supporting to write in white board projection area and outside projected area - Google Patents
The method simultaneously supporting to write in white board projection area and outside projected area Download PDFInfo
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- CN103729097B CN103729097B CN201410018077.1A CN201410018077A CN103729097B CN 103729097 B CN103729097 B CN 103729097B CN 201410018077 A CN201410018077 A CN 201410018077A CN 103729097 B CN103729097 B CN 103729097B
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Abstract
The present invention provides a kind of method of writing simultaneously supported in white board projection area and outside projected area, 1, electronic whiteboard is carried out positioning action so that blank driver can distinguish projected area with projected area outside region；2, when apparatus for writing is write on electronic whiteboard, the coordinate that the infrared hardware on electronic whiteboard obtains apparatus for writing according to the position of current apparatus for writing touch-control is sent to blank driver；3, blank driver is the corresponding screen coordinate on projected area according to blank location algorithm the coordinate transformation of apparatus for writing, according to the screen coordinate obtained, blank driver judges that screen coordinate is whether in the projected area of screen, it is, in projected area, then carry out the simulated operation of mouse or touch-control, no, then in projected area, do not carry out the simulated operation of mouse or touch-control.The present invention can support normally writing in view field, supports that carrying out water-color paintbrush outside view field writes simultaneously.
Description
Technical field
The present invention relates to digital image processing techniques field, especially interactive electronic blank；Concrete application
In the method supporting to write in white board projection area and outside projected area simultaneously.
Background technology
Interactive electronic blank can carry out information communication with computer, and electronic whiteboard is connected to PC, and
Scialyscope is utilized to project on electronic whiteboard screen by the content on PC, propping up at special application program
Hold down, a giant-screen, interactively cooperation meeting or teaching environment can be constructed.It is specific fixed to utilize
Position pen replaces mouse to operate on blank, can run any application program, can carry out file
Edit, annotate, any operation that preservation etc. utilizes keyboard and mouse to realize on computers.
The operation principle of infrared interactive touch electronic whiteboard is to be covered with infrared hardware in the surrounding touching plate body,
This infrared hardware includes infrared receiving tube and infrared transmitting tube, these infrared tubes plate body surface alignment in
Position relationship one to one, forms a light net become by infrared ray cloth, (can be hands when there being object
Refer to, the hands of band glove or any lighttight touching object) enter infrared light net and stop the infrared of somewhere
When reception launched by line, the ultrared power that the reception infrared tube of the both direction anyhow of this point receives is just
Can change, equipment is by understanding the change of ultrared reception condition.Through computer whiteboarding software
Blank location algorithm (this blank location algorithm is ripe prior art), calculate touch position
Put.Again by supporting software, complete user interactive operation on blank.
But the infrared electronic white board occurred in the market, (or finger etc. is impermeable only to support infrared pen
The object of light) write in the view field of plate body, do not support to be written on plate body projection with water-color paintbrush simultaneously
Outside region and function that between frame, region is write.If on existing infrared white board, use water-color paintbrush book simultaneously
Write, the operation of infrared pen will be erroneously interpreted as, produce maloperation.
Summary of the invention
The technical problem to be solved in the present invention, is to provide one in white board projection area and projected area
The outer method simultaneously supporting to write, can support normally writing in view field, supports throwing simultaneously
The overseas water-color paintbrush that carries out in shadow zone is write.
The present invention is achieved in that one and supports book outside projected area in white board projection area simultaneously
The method write, comprises the steps:
Step 1, electronic whiteboard is carried out positioning action so that blank driver can distinguish projected area with
Region outside projected area；
When step 2, apparatus for writing are write on electronic whiteboard, the infrared hardware on electronic whiteboard is according to working as
The position of front apparatus for writing touch-control obtains the coordinate of apparatus for writing and is sent to blank driver；
Step 3, blank driver according to blank location algorithm the coordinate transformation of apparatus for writing for projection
Corresponding screen coordinate in district, according to the screen coordinate obtained, blank driver judges that screen coordinate is
No in the projected area of screen, it is in projected area, then carry out the simulated operation of mouse or touch-control, no,
In projected area, then do not carry out the simulated operation of mouse or touch-control.
Present invention have the advantage that when user is write outside view field, calculate according to blank location
Method, obtains a not coordinate in screen resolution.Blank driver according to this coordinate information,
Mouse is not done any simulated operation.Realize user in this way, both can be in blank projected area
Controlling equipment (computer, flat board etc.) in territory, simultaneously outside view field；Traditional blackboard can be used
Water-color paintbrush writing function, without causing maloperation to the equipment connecting blank.
Accompanying drawing explanation
Fig. 1 is the inventive method schematic flow sheet.
Fig. 2 is the schematic diagram of projected area of the present invention.
Detailed description of the invention
Referring to shown in Fig. 1 and Fig. 2, the present invention is by touching blank at existing infrared interactive electronic
Drive and carry out separate procedure design on software, reaching in blank view field (shade in refering to Fig. 1
Part) carry out normal interactive operation with infrared pen lighttight objects such as (or) fingers, exist simultaneously
View field's exterior domain (the shadeless part in Fig. 1) normally writing with white board marker (water-color paintbrush)
Function.
Referring to shown in Fig. 1 and Fig. 2, the present invention is a kind of same in white board projection area and outside projected area
Time support the method write, comprise the steps:
Step 1, electronic whiteboard is carried out positioning action so that blank driver can distinguish projected area with
Region outside projected area；
Step 11, blank driver are according to blank location algorithm, by the infrared hardware on electronic whiteboard
The device coordinate detected transfers the coordinate (screen resolution of such as current computer on the screen of projected area to
For 1440:900, then the coordinate range of view field is also 0,0 1440,900)；
(which kind of pen is either used to write) when step 2, apparatus for writing are write on electronic whiteboard, electricity
The coordinate that infrared hardware on sub-blank obtains apparatus for writing according to the position of current apparatus for writing touch-control is sent out
Give blank driver；
Step 3, blank driver according to blank location algorithm the coordinate transformation of apparatus for writing for projection
(the most only touch point in drop shadow spread could be according to existing location for corresponding screen coordinate in district
Algorithm calculates the coordinate points of Current projection resolution；Such as current computer resolution is 1440:900,
Only in drop shadow spread when of touch-control, the device coordinate that hardware transport comes could be positioned by blank
Algorithm is calculated 0,0-1440, the coordinate points in the range of 900), blank driver is according to acquisition
Screen coordinate judge that screen coordinate, whether in the projected area of screen, is, then in projected area, carry out Mus
Mark or the simulated operation of touch-control, no, then in projected area, do not carry out the simulated operation of mouse or touch-control；
So support water-color paintbrush to write outside projected area.
This step 3 is particularly as follows: blank driver turns the coordinate of apparatus for writing according to blank location algorithm
Turn to the corresponding screen coordinate on projected area, when apparatus for writing is write outside white board projection area,
The value of the corresponding screen coordinate point then obtained is less or more than the coordinate points of electronic whiteboard screen resolution
Value, then blank driver predicates the corresponding screen coordinate obtained not in the projected area of screen,
The simulated operation of mouse or touch-control is not carried out in projected area；When apparatus for writing is in white board projection area
When inside writing, then the value of the corresponding screen coordinate point obtained is in the coordinate points of electronic whiteboard screen resolution
Value within, then blank driver predicates the corresponding screen coordinate obtained in the projected area of screen
In, in projected area, carry out the simulated operation of mouse or touch-control.
Therefore, the action of the apparatus for writing of the present invention occurs screen prjection is outer when, although infrared firmly
Part still has coordinate data and produces, but blank drives and obtains screen resolution according to blank location algorithm
During outer point, these points are not taken away use, shield the coordinate in these non-drop shadow spreads so that it is no
Participate in mouse or the simulated operation of touch-control, so not interfering with when writing with water-color paintbrush in non-view field
Mouse in drop shadow spread or the operation simulation of TOUCH touch-control, make electronic whiteboard i.e. can use water-color paintbrush
Outside drop shadow spread, use the function of traditional blackboard, electronic whiteboard can be used in drop shadow spread to control again
The equipment such as computer flat panel, accomplish not interfere with each other.
The foregoing is only presently preferred embodiments of the present invention, all according to scope of the present invention patent done equal
Deng change and modification, the covering scope of the present invention all should be belonged to.
Claims (3)
1. the method simultaneously supporting to write in white board projection area and outside projected area, its feature
It is, comprises the steps:
Step 1, electronic whiteboard is carried out positioning action so that blank driver can distinguish projected area with
Region outside projected area；
When step 2, apparatus for writing are write on electronic whiteboard, the infrared hardware on electronic whiteboard is according to working as
The position of front apparatus for writing touch-control obtains the coordinate of apparatus for writing and is sent to blank driver；
Step 3, blank driver according to blank location algorithm the coordinate transformation of apparatus for writing for projection
Corresponding screen coordinate in district, according to the screen coordinate obtained, blank driver judges that screen coordinate is
No in the projected area of screen, it is in projected area, then carry out the simulated operation of mouse or touch-control, no,
In projected area, then do not carry out the simulated operation of mouse or touch-control.
The most according to claim 1 in white board projection area and support book outside projected area simultaneously
The method write, it is characterised in that: also include between described step 1 and step 2:
Step 11, blank driver are according to blank location algorithm, by the infrared hardware on electronic whiteboard
The device coordinate detected transfers the coordinate on the screen of projected area to.
The most according to claim 1 in white board projection area and support book outside projected area simultaneously
The method write, it is characterised in that:
Described step 3 particularly as follows: blank driver according to blank location algorithm the coordinate of apparatus for writing
The corresponding screen coordinate being converted on projected area, when apparatus for writing is write outside white board projection area
Time, then the value of the corresponding screen coordinate point obtained is less or more than the coordinate of electronic whiteboard screen resolution
The value of point, then blank driver predicates the corresponding screen coordinate obtained not in the projected area of screen
In, in projected area, do not carry out the simulated operation of mouse or touch-control；When apparatus for writing is thrown at electronic whiteboard
When writing in shadow zone, then the value of the corresponding screen coordinate point obtained is at the seat of electronic whiteboard screen resolution
Within the value of punctuate, then blank driver predicates the projection at screen of the corresponding screen coordinate that obtains
In district, in projected area, carry out the simulated operation of mouse or touch-control.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410018077.1A CN103729097B (en) | 2014-01-15 | 2014-01-15 | The method simultaneously supporting to write in white board projection area and outside projected area |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410018077.1A CN103729097B (en) | 2014-01-15 | 2014-01-15 | The method simultaneously supporting to write in white board projection area and outside projected area |
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| CN103729097A CN103729097A (en) | 2014-04-16 |
| CN103729097B true CN103729097B (en) | 2016-11-09 |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107831952A (en) * | 2017-05-26 | 2018-03-23 | 苏州腾邦科技有限公司 | A kind of Fei Jubian projects Integral electronic touch-control blank |
| CN108363522B (en) * | 2018-04-24 | 2024-08-13 | 石家庄科达文教用品有限公司 | Synchronous writing system and method thereof |
| CN110780778A (en) * | 2018-07-31 | 2020-02-11 | 中强光电股份有限公司 | Electronic whiteboard system, control method and electronic whiteboard |
| CN110795053B (en) * | 2018-08-01 | 2023-07-18 | 昆山纬绩资通有限公司 | Computer screen local projection method and system |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202443446U (en) * | 2012-01-07 | 2012-09-19 | 洪颖莎 | Compound electronic teaching board |
| CN202782338U (en) * | 2012-07-11 | 2013-03-13 | 河北海捷现代教学设备有限公司 | Wall-mounted teaching all-in-one machine |
| CN103049135A (en) * | 2013-01-05 | 2013-04-17 | 锐达互动科技股份有限公司 | Double-board splicing implementation method on basis of electronic white boards |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20000016918A (en) * | 1998-08-27 | 2000-03-25 | 에토 요지 | Digitizer with out-of-bounds tracking |
| JP2004239967A (en) * | 2003-02-03 | 2004-08-26 | Seiko Epson Corp | projector |
| CN101681214A (en) * | 2007-04-18 | 2010-03-24 | 卢依狄亚公司 | Pre-assembled part with associated surface convertible into transcription device |
| CN201348764Y (en) * | 2008-12-22 | 2009-11-18 | 光峰科技股份有限公司 | Interactive bulletin system with expansion function operating area outside image display area |
| JP5451088B2 (en) * | 2009-01-26 | 2014-03-26 | Ｎｅｃカシオモバイルコミュニケーションズ株式会社 | Image terminal apparatus and program |
| CN203338273U (en) * | 2013-03-05 | 2013-12-11 | 江门市盈江科技有限公司 | Electronic interactive whiteboard area setting structure |
| CN103440789A (en) * | 2013-09-01 | 2013-12-11 | 四川东山教学设备有限责任公司 | Interactive multimedia teaching dust-free writing board |
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2014
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202443446U (en) * | 2012-01-07 | 2012-09-19 | 洪颖莎 | Compound electronic teaching board |
| CN202782338U (en) * | 2012-07-11 | 2013-03-13 | 河北海捷现代教学设备有限公司 | Wall-mounted teaching all-in-one machine |
| CN103049135A (en) * | 2013-01-05 | 2013-04-17 | 锐达互动科技股份有限公司 | Double-board splicing implementation method on basis of electronic white boards |
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| CN103729097A (en) | 2014-04-16 |
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Address after: 350108 6, No. 1 Innovation Park, No. 3 east science and technology road, Minhou street, Minhou, Fuzhou. Patentee after: RETURNSTAR INTERACTIVE TECHNOLOGY GROUP Co.,Ltd. Address before: 350000 Building 8, Gulou garden, Citrus Industrial Park, 618 Jinshan Road, Jianxin Town, Cangshan District, Fuzhou, Fujian, China Patentee before: RETURNSTAR INTERACTIVE TECHNOLOGY GROUP Co.,Ltd. |
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Granted publication date: 20161109 |