WO2013063861A1 - Dispositif de tableau blanc électronique virtuel - Google Patents

Dispositif de tableau blanc électronique virtuel Download PDF

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Publication number
WO2013063861A1
WO2013063861A1 PCT/CN2012/001429 CN2012001429W WO2013063861A1 WO 2013063861 A1 WO2013063861 A1 WO 2013063861A1 CN 2012001429 W CN2012001429 W CN 2012001429W WO 2013063861 A1 WO2013063861 A1 WO 2013063861A1
Authority
WO
WIPO (PCT)
Prior art keywords
light source
line
virtual electronic
electronic whiteboard
camera
Prior art date
Application number
PCT/CN2012/001429
Other languages
English (en)
Chinese (zh)
Inventor
戴欢丰
徐克�
Original Assignee
上海易视计算机科技有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 上海易视计算机科技有限公司 filed Critical 上海易视计算机科技有限公司
Publication of WO2013063861A1 publication Critical patent/WO2013063861A1/fr

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
    • G06F3/042—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by opto-electronic means
    • G06F3/0428—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by opto-electronic means by sensing at the edges of the touch surface the interruption of optical paths, e.g. an illumination plane, parallel to the touch surface which may be virtual

Definitions

  • the invention belongs to the field of touch display technologies, and in particular relates to a virtual electronic whiteboard device. Background technique
  • the existing virtual electronic whiteboard is generally implemented by a camera and an infrared pen, for example, the application number is
  • the invention of the application is: "The present invention, by using a device and method for generating a touch-sensitive spot on a plane, enables the electronic whiteboard of the photoelectric technology to truly become a touch screen, and can also be plasma, liquid crystal, rear projection, etc.
  • the display is transformed into a touch screen by photoelectric technology.
  • the object of the invention is achieved by: an apparatus and method for generating a touch-sensitive spot on a plane, comprising at least one linear laser generating device, characterized in that one or more linear lasers are generated outside the planar sensing region
  • the laser emitting device causes the plane formed by the linear beam emitted by the laser emitting device to be close to and parallel with the plane sensing region, and when other objects touch the plane sensing region from the plane side formed by the linear laser beam, When the laser hits the obstacle, one or more spots are formed at positions corresponding to the obstacle object on the plane sensing area.
  • the linear laser generating device is characterized in that it is a linear laser emitter or a device in which a point laser generates a linear laser effect by other means.
  • the planar sensing region is characterized in that the planar surface is of sufficient level to ensure that the laser beam path is not obstructed on the plane when the laser beam plane and the sensing region plane are in parallel.
  • the linear laser generating device is characterized in that, when a plurality of laser generating devices are used, the linear laser beams emitted by the respective devices are required to be in the same plane.
  • the apparatus and method for generating a touch-sensing spot on a plane characterized in that, by providing a plurality of sets of linear laser generating devices at different positions outside the plane, it is possible to ensure that each object simultaneously approaches the planar sensing area
  • the corresponding position can generate a spot without causing an object to be illuminated by the laser due to the mutual obstruction of the object, and the spot cannot be formed at the corresponding position.
  • the device and method for generating a touch-sensing spot on a plane wherein the linear laser may have a strong light at a position of the optical center, and the brightness of the light around the center of the optical center is slightly weaker, and The brightness of the spot formed by the occlusion object is different from that of the laser generating device.
  • the position of the laser generating device according to the brightness distribution of the light on the plane, when the spot is formed at all positions on the sensing plane, the brightness of the spot is relatively uniform. .
  • the technical solution of the present invention is a virtual electronic whiteboard device for implementing a touch screen function on a display plane, comprising a line source and an image information processing device, wherein the line source is provided with a camera, and the line source is placed in the Displaying a plane such that a light touch surface formed by the light emitted by the line source is parallel to, and infinitely close to, but does not touch the display plane.
  • An angle of view formed by the camera on the display plane causes an image of the display plane obtained by the camera to be processed by the image information processing apparatus,
  • the image information processing device records the position and state of the light touch point in real time through the image obtained by the camera.
  • the line source includes at least one light source body.
  • the line source comprises two fan-shaped uniform light source bodies such that the light beam formed by the light source emitted by the line light source covers the entire display plane.
  • the camera can adjust the angle to the display plane.
  • the camera is rotatably connected to the line light source through a telescopic support rod.
  • the light source body uses a laser emitter.
  • a virtual electronic whiteboard device includes a line light source, a camera and a support rod, wherein one end of the support rod is connected to the light source, and the other end is connected to the camera.
  • the first line light source comprises at least one light source body, the light source body is mounted on a liner supported by a bottom plate, and the bottom plate is fixed in the frame by four bolts, and the frame is closely adhered to the bracket, the bracket and the cover plate, A knob is provided for adjusting the angle of the support rod, and the bracket further includes a data board connected to the light source body by a wire harness, the support rod is a retractable structure, and the camera has an angle adjustable structure.
  • the first line source comprises a filter for ray filtering of the source body.
  • a virtual electronic whiteboard device includes a second line light source, a camera and a support rod, one end of the support rod is connected to the second line light source, and the other end is connected to the camera.
  • the second line source includes at least one light source body
  • a second whiteboard is further included, the upper portion of the second whiteboard having a whiteboard recessed surface having a concave recessed surface step for mounting the second linear light source.
  • the rear cover of the second line light source is symmetrically mounted with at least two light source bodies, and is closely attached to the heat sink.
  • the rear cover of the second line light source has a first mounting surface and a second mounting surface, and the first mounting surface and the second mounting surface have a convex step, and the concave groove surface step of the groove surface of the second whiteboard is matched , to securely install the second line source.
  • the rear cover has a light shielding surface, and a ray step is formed between the light shielding surface of the rear cover and the second mounting surface of the rear cover.
  • the ray step makes The light shielding surface of the rear cover forms a second line light source emitting gap with the whiteboard surface of the second whiteboard to prevent the diverging effect of the radiation.
  • the second line source has a filter, preferably a curved shape.
  • the support rod is a telescopic structure.
  • the camera has an angle adjustable structure.
  • the second line source includes a data board connected to the light source body by a wire harness.
  • the rear cover of the second line light source has a reinforcing structure inside.
  • the second line source has a standard computer data interface.
  • the invention realizes the integration of the line light source and the camera, and realizes the line smooth surface by using only one line light source, which is convenient for installation and debugging, and realizes the function of the virtual electronic whiteboard without complicated external equipment.
  • Figure 1 is a perspective perspective view of a first embodiment of the apparatus of the present invention
  • 1 - virtual electronic whiteboard device 1 - virtual electronic whiteboard device
  • Figure 3 is a side view of the first embodiment of the apparatus of the present invention
  • FIG. 4 is a perspective exploded perspective view showing an angle of the line light source module 2 of the first embodiment of the apparatus of the present invention, wherein 201 - a filter
  • Figure 5 is a perspective exploded view showing another angle of the line light source module 2 of the first embodiment of the apparatus of the present invention.
  • Figure 6 is a perspective view showing the components of the frame 204 in the first embodiment of the apparatus of the present invention.
  • Figure 7 is a schematic view showing the installation and use of the first embodiment of the apparatus of the present invention.
  • Figure 8 is a schematic diagram of the technical principle of the present invention.
  • Figure 9 is a perspective view of the apparatus in the second embodiment of the present invention.
  • Figure 10 is a schematic exploded view of the apparatus in the second embodiment of the present invention.
  • Figure 12 is a plan view of the device in the second embodiment of the present invention.
  • Figure 13 is a perspective view of the second embodiment of the present invention in a second embodiment of the present invention.
  • Figure 15 is a perspective view of a second line source 32 in the apparatus of the second embodiment of the present invention.
  • Figure 16 is an exploded perspective view of the second line light source 32 in the apparatus of the second embodiment of the present invention.
  • Figure 17 is a schematic view showing the heat sink 324 in the rear cover 320 of the apparatus in the second embodiment of the present invention.
  • Figure 18 is a schematic view showing the heat sink 324 mounted in the rear cover 320 of the apparatus in the second embodiment of the present invention.
  • the virtual electronic whiteboard device of the present invention comprises a line light source 2, a camera 3 and a support rod 4, and one end of the support rod 4 is connected to the light source 2, and the other end is connected to the camera 3.
  • the first line source 2 includes at least one light source body 202 and a filter 201.
  • the light source body 202 is mounted on a backing plate 203 supported by a bottom plate 206.
  • the bottom plate 206 is fixed in the frame 204 by four bolts 205.
  • the frame 204 is in close contact with the bracket 207, the bracket 208 and the cover 209.
  • the bracket 208 is provided with a knob 210 for adjusting the angle of the support rod 4.
  • the bracket 208 further includes a data board 211 through the harness 212. Connected to the light source body 202, the support rod 4 is a telescopic structure, and the camera 3 has an angle adjustable structure.
  • the circuit on the data board 211 processes the image data and transmits it to the external image information processing device to complete the function of the virtual electronic whiteboard.
  • Figure 7 is a schematic view showing the installation and use of the apparatus of the present invention.
  • FIG. 8 is a schematic diagram of the technical principle of the present invention.
  • image data acquired by the camera 3 is captured by an image information processing device to form an effect such as a mouse or a light pen. , realized the function of the virtual electronic whiteboard.
  • Second embodiment
  • a virtual electronic whiteboard device includes a second line light source 32, a camera 3 and a support rod 4. One end of the support rod 4 is connected to the second line light source 32, and the other end is connected to the camera 3, and the second line source 32 Including at least one light source body 202 and a filter 201,
  • a second whiteboard 8 the upper region of the second whiteboard 8 having a whiteboard recessed surface 82 having a concave recessed surface step 81 for mounting the second linear light source 32.
  • the rear cover 320 of the second line light source 32 is internally symmetrically mounted with at least two light source bodies 202, and is closely attached to the heat sink 324.
  • the rear cover 320 of the second line light source 32 has a first mounting surface 322 and a second mounting surface 323.
  • the first mounting surface 322 and the second mounting surface 323 have a convex step 321 therebetween, and cooperate with the groove surface of the second white plate 8.
  • the first mounting surface 322 is in close contact with the white plate recessed surface 82, and the second mounting surface 323 is closely attached to the whiteboard surface of the second whiteboard 8.
  • the first mounting surface 322 has a size area shape that matches the size of the groove surface 82.
  • the size of the raised step 321 matches the size of the groove surface step 81.
  • the rear cover 320 has a light shielding surface 326.
  • the light shielding surface 326 of the rear cover 320 and the second mounting surface 323 of the rear cover 320 have a ray step 327.
  • the ray step 327 causes the light-shielding surface 326 of the rear cover 320 and the white surface of the second white plate 8 to form a second line light emitting slit 9 to prevent the diverging effect of the radiation.
  • the firing gap 9 is approximately 2 to 3 mm wide.
  • the second line light source 32 has a filter 201 and is a curved surface shape.
  • the support rod 4 is a telescopic structure.
  • the camera 3 has an angle adjustable structure.
  • the second line light source 32 includes a data board 211 connected to the light source body 202 via a wire harness 212.
  • the rear cover 320 of the second line source 32 has a reinforcing structure 325 inside.
  • the second line source 32 has a standard computer data interface.
  • the advantage of the device in the second embodiment is that the installation and commissioning in the field is convenient, and the problem of the ray divergence is solved.
  • the light source body 202 can be implemented using a laser reticle.
  • the light source body 202 may be a plurality or one, and may be disposed in a symmetric distribution.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Human Computer Interaction (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Image Input (AREA)
  • Projection Apparatus (AREA)
  • Drawing Aids And Blackboards (AREA)

Abstract

L'invention concerne un dispositif de tableau blanc électronique virtuel, utilisé pour réaliser les fonctions d'un écran tactile sur un plan d'affichage, et comprenant une source de ligne de lumière et un dispositif de traitement d'informations d'image. La source de ligne de lumière comporte sur celle-ci une caméra. La source de ligne de lumière est disposée sur le plan d'affichage de telle sorte que la surface tactile lumineuse formée par les rayons de lumière émis par la source de ligne de lumière est parallèle au plan d'affichage et étroitement à proximité, mais non en contact, avec le plan d'affichage. L'angle de vue formé par la caméra pour le plan d'affichage permet à l'image du plan d'affichage obtenue par la caméra d'être traitée par le dispositif d'informations d'image. Lorsque les rayons de lumière de la surface tactile lumineuse forment un point tactile lumineux dû au blocage d'une barrière, le dispositif de traitement d'informations d'image enregistre l'emplacement et l'état du point tactile lumineux par évaluation de l'image obtenue par la caméra en temps réel. La source de ligne de lumière comprend au moins un corps de source de lumière. La présente invention réalise l'intégration d'une source de ligne de lumière et d'une caméra, et réalise un plan de ligne de lumière seulement à l'aide d'une seule source de ligne de lumière, ce qui la rend commode pour une installation et une mise en service.
PCT/CN2012/001429 2011-10-31 2012-10-25 Dispositif de tableau blanc électronique virtuel WO2013063861A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201110336523.X 2011-10-31
CN201110336523.XA CN102375622B (zh) 2011-10-31 2011-10-31 一种虚拟电子白板装置

Publications (1)

Publication Number Publication Date
WO2013063861A1 true WO2013063861A1 (fr) 2013-05-10

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2012/001429 WO2013063861A1 (fr) 2011-10-31 2012-10-25 Dispositif de tableau blanc électronique virtuel

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CN (1) CN102375622B (fr)
WO (1) WO2013063861A1 (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102375622B (zh) * 2011-10-31 2015-04-15 上海易视计算机科技有限公司 一种虚拟电子白板装置
US9582119B2 (en) 2012-01-11 2017-02-28 Smart Technologies Ulc Interactive input system and method
CN104007883B (zh) * 2014-06-19 2017-02-15 安徽春勤教育装备有限公司 定位改进的光学触控电子白板及其定位方法
CN204926047U (zh) * 2015-08-26 2015-12-30 上海易视计算机科技有限公司 一种便携式触控投影装置
CN106598359A (zh) * 2016-12-06 2017-04-26 上海师范大学 一种电子显示装置

Citations (5)

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Publication number Priority date Publication date Assignee Title
CN201266361Y (zh) * 2008-04-10 2009-07-01 南京芒冠光电科技有限公司 一种遥控电子白板
CN101587403A (zh) * 2008-05-22 2009-11-25 南京芒冠光电科技有限公司 在平面上产生触摸感应光斑的装置和方法
CN201489498U (zh) * 2009-07-24 2010-05-26 一品光学工业股份有限公司 微机电扫描触控荧幕
CN102375622A (zh) * 2011-10-31 2012-03-14 上海易视计算机科技有限公司 一种虚拟电子白板装置
CN202306516U (zh) * 2011-10-31 2012-07-04 上海易视计算机科技有限公司 一种虚拟电子白板装置

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TW201015404A (en) * 2008-10-03 2010-04-16 Univ Nat Chiao Tung Optical touch display device, optical touch sensing device and touch sensing method
CN201590066U (zh) * 2010-01-29 2010-09-22 宁波舜宇光电信息有限公司 一种光学式触摸屏
CN101887329B (zh) * 2010-07-13 2012-01-25 世大光电(深圳)有限公司 电子设备及其光学定位装置

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201266361Y (zh) * 2008-04-10 2009-07-01 南京芒冠光电科技有限公司 一种遥控电子白板
CN101587403A (zh) * 2008-05-22 2009-11-25 南京芒冠光电科技有限公司 在平面上产生触摸感应光斑的装置和方法
CN201489498U (zh) * 2009-07-24 2010-05-26 一品光学工业股份有限公司 微机电扫描触控荧幕
CN102375622A (zh) * 2011-10-31 2012-03-14 上海易视计算机科技有限公司 一种虚拟电子白板装置
CN202306516U (zh) * 2011-10-31 2012-07-04 上海易视计算机科技有限公司 一种虚拟电子白板装置

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CN102375622B (zh) 2015-04-15
CN102375622A (zh) 2012-03-14

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