CN103729097A - Method for supporting writing simultaneously in and out of electronic white board projection area - Google Patents
Method for supporting writing simultaneously in and out of electronic white board projection area Download PDFInfo
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- CN103729097A CN103729097A CN201410018077.1A CN201410018077A CN103729097A CN 103729097 A CN103729097 A CN 103729097A CN 201410018077 A CN201410018077 A CN 201410018077A CN 103729097 A CN103729097 A CN 103729097A
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- 238000012546 transfer Methods 0.000 claims description 2
- 238000004088 simulation Methods 0.000 abstract description 3
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- 238000004891 communication Methods 0.000 description 1
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Abstract
The invention provides a method for supporting writing simultaneously in and out of an electronic white board projection area. According to the method, firstly, an electronic whiteboard is positioned, so that a whiteboard drive program can distinguish a projection area and an area out of the projection area; secondly, when people use a writing device to write on the electronic whiteboard, infrared hardware on the electronic whiteboard obtains the coordinate of the writing device according to the position where the current writing device touches, and sends the coordinate to the whiteboard drive program; thirdly, the whiteboard drive program converts the coordinate of the writing device into a corresponding screen coordinate on the projection area according to a whiteboard position algorithm, the whiteboard drive program judges whether the screen coordinate is in the projection area of a screen according to the obtained screen coordinate, if the answer is yes, simulation operations of a mouse or touch are carried out in the projection area, and if the answer is no, the simulation operations of the mouse or the touch are not carried out in the projection area. According to the method, normal writing in the projection area can be achieved, and meanwhile gel pen writing in the area out of the projection area is supported.
Description
Technical field
The present invention relates to digital image processing techniques field, especially interactive electronic blank; Specifically be applied in electronic white board projection district and the outer method that support is write simultaneously of projection in zone.
Background technology
Interactive electronic blank can carry out information communication with computer, electronic whiteboard is connected to PC, and utilize projector that the content on PC is projected on electronic whiteboard screen, under the support of special application program, can construct a giant-screen, interactively cooperation meeting or teaching environment.Utilize specific pen with means for holding it in right position to replace mouse at the enterprising line operate of blank, can move any application program, any operation that can edit file, annotate, preservation etc. utilizes keyboard and mouse to realize on computers.
The principle of work of infrared interactive touch electronic whiteboard is to be covered with infrared hardware in the surrounding that touches plate body, this infrared hardware comprises infrared receiving tube and infrared transmitting tube, these infrared tubes are position relationship one to one at the surface alignment of plate body, form a light net being become by infrared ray cloth, when there being object, (can be finger, hand with gloves or any lighttight touch object) when entering infrared light net and stopping the infrared ray transmitter and receiver in somewhere, the ultrared power that the reception infrared tube of the both direction anyhow of this point receives will change, equipment is by understanding the variation of ultrared reception condition.Through the blank location algorithm (this blank location algorithm is ripe prior art) of computing machine blank software, calculate touch location.By supporting software, complete the interactive operation of user on blank again.
But the infrared electronic white board occurring in the market, only supports infrared pen lighttight objects such as (or) fingers to write in the view field of plate body, do not support simultaneously to write with water-color paintbrush the function that between the overseas and frame of on plate body projection in zone, write in region.If on existing infrared white board, with water-color paintbrush, write simultaneously, will be mistaken as is infrared pen operation, produces maloperation.
Summary of the invention
The technical problem to be solved in the present invention, is to provide a kind of in electronic white board projection district and the outer method that support is write simultaneously of projection in zone, can be supported in normally writing in view field, is supported in outside view field, to carry out water-color paintbrush and write simultaneously.
The present invention is achieved in that a kind of in electronic white board projection district and the outer method that support is write simultaneously of projection in zone, comprises the steps:
Step 1, electronic whiteboard is positioned to operation, make blank driver can distinguish the region outside projection in zone and projection in zone;
When step 2, apparatus for writing are 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 sends to blank driver;
Step 3, blank driver are the corresponding screen coordinate in projection in zone according to blank location algorithm the coordinate transformation of apparatus for writing, blank driver judges that according to the screen coordinate obtaining screen coordinate is whether in the projection in zone of screen, be, in projection in zone, carry out the simulated operation of mouse or touch-control, no, in projection in zone, do not carry out the simulated operation of mouse or touch-control.
Tool of the present invention has the following advantages: when user writes outside view field, according to blank location algorithm, obtain a not coordinate in screen resolution.Blank driver, according to this coordinate information, does not do any simulated operation to mouse.Realize in this way user, both can be in blank view field controlling equipment (computer, dull and stereotyped etc.), simultaneously outside view field; Can use the water-color paintbrush writing function of traditional blackboard, and can not cause maloperation to the equipment that connects blank.
Accompanying drawing explanation
Fig. 1 is the inventive method schematic flow sheet.
Fig. 2 is the schematic diagram of projection in zone of the present invention.
Embodiment
Refer to shown in Fig. 1 and Fig. 2; the present invention is by carrying out separate procedure design on the driving at existing infrared interactive electronic touch blank and software; reach in blank view field (dash area in consulting Fig. 1) and carry out normal interactive operation, the simultaneously normal writing function with white board marker (water-color paintbrush) at view field's exterior domain (the shadeless part in Fig. 1) with infrared pen lighttight objects such as (or) fingers.
Refer to shown in Fig. 1 and Fig. 2, the present invention is a kind of in electronic white board projection district and the outer method that support is write simultaneously of projection in zone, comprises the steps:
Step 1, electronic whiteboard is positioned to operation, make blank driver can distinguish the region outside projection in zone and projection in zone;
Step 11, blank driver are according to blank location algorithm, by the infrared hardware detecting on electronic whiteboard to device coordinate transfer coordinate on the screen of projection in zone to (screen resolution of for example current computer be 1440:900, the coordinate range of view field is also 0,0 – 1440,900);
When step 2, apparatus for writing are write on electronic whiteboard (no matter being to use which kind of pen to write), the coordinate that the infrared hardware on electronic whiteboard obtains apparatus for writing according to the position of current apparatus for writing touch-control sends to blank driver;
Step 3, blank driver are that (only the touch point in drop shadow spread could calculate according to existing location algorithm the coordinate points of current projected resolution for corresponding screen coordinate in projection in zone according to blank location algorithm the coordinate transformation of apparatus for writing; For example current computer resolution is 1440:900, only in drop shadow spread in touch-control, the device coordinate that hardware transmits up could calculate 0 by blank location algorithm, 0-1440, the coordinate points in 900 scopes), blank driver judges that according to the screen coordinate obtaining screen coordinate is whether in the projection in zone of screen, be, in projection in zone, carry out the simulated operation of mouse or touch-control, no, in projection in zone, do not carry out the simulated operation of mouse or touch-control; Supporting like this water-color paintbrush writes outward in projection in zone.
This step 3 is specially: blank driver is the corresponding screen coordinate in projection in zone according to blank location algorithm the coordinate transformation of apparatus for writing, when apparatus for writing is write outside electronic white board projection district, the value of the corresponding screen coordinate point obtaining is less than or exceeds the value of the coordinate points of electronic whiteboard screen resolution, blank driver predicates the corresponding screen coordinate obtaining not in the projection in zone of screen, does not carry out the simulated operation of mouse or touch-control in projection in zone; When apparatus for writing is write in electronic white board projection district, the value of the corresponding screen coordinate point obtaining is within the value of the coordinate points of electronic whiteboard screen resolution, blank driver predicates the corresponding screen coordinate obtaining in the projection in zone of screen, carries out the simulated operation of mouse or touch-control in projection in zone.
Therefore, when the action of apparatus for writing of the present invention occurs in outside screen prjection, although infrared hardware still has coordinate data and produces, but blank drives while obtaining the point outside screen resolution according to blank location algorithm, not the use of taking away of these points, shielded the coordinate in these non-drop shadow spreads, make it not participate in the simulated operation of mouse or touch-control, so write Shi Buhui with water-color paintbrush in non-view field, have influence on mouse in drop shadow spread or the operation simulation of TOUCH touch-control, make electronic whiteboard can water pen outside drop shadow spread, use the function of traditional blackboard, can in drop shadow spread, use again the dull and stereotyped equipment that waits of electronic whiteboard control computer, accomplish not interfere with each other.
The foregoing is only preferred embodiment of the present invention, all equalizations of doing according to the present patent application the scope of the claims change and modify, and all should belong to covering scope of the present invention.
Claims (3)
1. in electronic white board projection district and outside projection in zone, support a method of writing simultaneously, it is characterized in that, comprise the steps:
Step 1, electronic whiteboard is positioned to operation, make blank driver can distinguish the region outside projection in zone and projection in zone;
When step 2, apparatus for writing are 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 sends to blank driver;
Step 3, blank driver are the corresponding screen coordinate in projection in zone according to blank location algorithm the coordinate transformation of apparatus for writing, blank driver judges that according to the screen coordinate obtaining screen coordinate is whether in the projection in zone of screen, be, in projection in zone, carry out the simulated operation of mouse or touch-control, no, in projection in zone, do not carry out the simulated operation of mouse or touch-control.
2. according to claim 1 in electronic white board projection district and the outer method that support is write simultaneously of projection in zone, it is characterized in that: between described step 1 and step 2, also comprise:
Step 11, blank driver be according to blank location algorithm, by the infrared hardware detecting on electronic whiteboard to device coordinate transfer the coordinate on the screen of projection in zone to.
3. according to claim 1 in electronic white board projection district and the outer method that support is write simultaneously of projection in zone, it is characterized in that:
Described step 3 is specially: blank driver is the corresponding screen coordinate in projection in zone according to blank location algorithm the coordinate transformation of apparatus for writing, when apparatus for writing is write outside electronic white board projection district, the value of the corresponding screen coordinate point obtaining is less than or exceeds the value of the coordinate points of electronic whiteboard screen resolution, blank driver predicates the corresponding screen coordinate obtaining not in the projection in zone of screen, does not carry out the simulated operation of mouse or touch-control in projection in zone; When apparatus for writing is write in electronic white board projection district, the value of the corresponding screen coordinate point obtaining is within the value of the coordinate points of electronic whiteboard screen resolution, blank driver predicates the corresponding screen coordinate obtaining in the projection in zone of screen, carries out the simulated operation of mouse or touch-control in projection in zone.
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 |
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| Application Number | Priority Date | Filing Date | Title |
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| 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 true CN103729097A (en) | 2014-04-16 |
| CN103729097B CN103729097B (en) | 2016-11-09 |
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Cited By (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 |
| CN108363522A (en) * | 2018-04-24 | 2018-08-03 | 石家庄科达文教用品有限公司 | Synchronous writing system and its method |
| 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 |
| CN110795053A (en) * | 2018-08-01 | 2020-02-14 | 昆山纬绩资通有限公司 | Computer screen local projection method and system |
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| CN101681214A (en) * | 2007-04-18 | 2010-03-24 | 卢依狄亚公司 | Pre-assembled part with an associated surface convertible to a transcription apparatus |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| 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 |
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| 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 |
| CN110795053A (en) * | 2018-08-01 | 2020-02-14 | 昆山纬绩资通有限公司 | Computer screen local projection method and system |
| 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 |
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| CN103729097B (en) | 2016-11-09 |
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| CP02 | Change in the address of a patent holder |
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 |
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