WO2013063861A1

WO2013063861A1 - Virtual electronic white board device

Info

Publication number: WO2013063861A1
Application number: PCT/CN2012/001429
Authority: WO
Inventors: 戴欢丰; 徐克�
Original assignee: 上海易视计算机科技有限公司
Priority date: 2011-10-31
Filing date: 2012-10-25
Publication date: 2013-05-10
Also published as: CN102375622A; CN102375622B

Abstract

Disclosed is a virtual electronic white board device, used for realizing the functions of a touch screen on a display plane, and including a line light source and an image information processing device. The line light source is provided thereon with a camera. The line light source is disposed on the display plane so that the light touch surface formed by the light rays emitted by the line light source is parallel to and infinitely approximate to but does not touch the display plane. The view angle formed by the camera for the display plane enables the image of the display plane obtained by the camera to be processed by the image information device. When the light rays of the light touch surface form a light touch point due to the blocking of a barrier, the image information processing device records the location and status of the light touch point by judging the image obtained by the camera in real time. The line light source at least includes a light source body. The present invention realizes the integration of a line light source and a camera, and realizes a line light plane only using one line light source, which makes it convenient for installation and commissioning.

Description

Virtual electronic whiteboard device

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 technical solution disclosed in the Chinese patent application of 200810024947.0. 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. When setting 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. .

However, the installation or debugging of the virtual electronic whiteboard or the camera in the prior art is inconvenient, or multiple line sources are required. Summary of the invention

It is an object of the present invention to provide a virtual electronic whiteboard device that allows a user to use an infrared pen and to install a convenient electronic whiteboard function.

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,

When the light of the light touch surface is blocked by the obstacle to form a light touch point, 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.

Preferably, 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.

Preferably, the camera can adjust the angle to the display plane.

Preferably, the camera is rotatably connected to the line light source through a telescopic support rod. Preferably, 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. Preferably, 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. When the second line light source is installed in the concave surface of the whiteboard of the second whiteboard, 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. DRAWINGS

Figure 1 is a perspective perspective view of a first embodiment of the apparatus of the present invention

Among them, 1 - virtual electronic whiteboard device

2——first line source

3 - camera

4——Support rod Figure 2 is another perspective perspective view of the first embodiment of the apparatus of the present invention

Figure 3 is a side view of the first embodiment of the apparatus of the present invention

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

202——light source body

203 - liner

204 - frame

205 - bolt

206 - bottom plate

207 - bracket

208 - bracket

209——cover

210——knob

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.

Among them, 211 - data board

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

Among them, 5 - display plane

Figure 8 is a schematic diagram of the technical principle of the present invention

Among them, 6 - the smooth surface formed by the beam

7 - light spot

Figure 9 is a perspective view of the apparatus in the second embodiment of the present invention

Wherein, 31 - the second virtual electronic whiteboard device

32——second line light source

Figure 10 is a schematic exploded view of the apparatus in the second embodiment of the present invention

Among them, 8 - the second whiteboard

82——Whiteboard groove surface Figure 11 is a side view of the device in the second embodiment of the present invention

Where 9 - the second line source emits a gap

Figure 12 is a plan view of the device in the second embodiment of the present invention

81——Whiteboard groove surface step

321——the second step of the second line light source

Figure 13 is a perspective view of the second embodiment of the present invention in a second embodiment of the present invention.

Among them, 320 - rear cover

Figure 15 is a perspective view of a second line source 32 in the apparatus of the second embodiment of the present invention

Wherein, 322 - the first mounting surface of the rear cover 320

323 - the second mounting surface of the rear cover 320

326——the light-shielding surface of the rear cover 320

327 - the ray step between the light shielding surface of the rear cover 320 and the second mounting surface of the rear cover 320

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;

324 - heat sink

325——Strength structure of rear cover 320

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.

First embodiment

1 to FIG. 6, 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. When an obstacle forms a light spot 7 on a light surface 6 formed by a light beam, 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

9 to 18, 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,

Also included is 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. A concave groove surface step 81 of 82 for stably mounting the second line light source 32. During installation, 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. When the second line light source 32 is mounted on the whiteboard of the second whiteboard 8 After the recessed surface 82, 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.

Claims

Claim

A virtual electronic whiteboard device for implementing a touch screen function on a display plane, comprising: a line light source and an image information processing device, wherein the line light source is provided with a camera.

The line light source is disposed on the display plane such that a light touch surface formed by the light emitted by the line light source is parallel to, and infinitely close to, but does not touch the display plane.

The line source includes at least one light source body.

The virtual electronic whiteboard device according to claim 1, wherein the line light source comprises at least two light source bodies uniformly distributed in a sector such that a light surface formed by the light beam emitted from the line light source covers the entire display surface.

The virtual electronic whiteboard device according to claim 1, wherein the camera adjusts an angle with respect to a display plane.

The virtual electronic whiteboard device according to claim 1, wherein the camera is rotatably coupled to the line light source via a telescopic support bar.

The virtual electronic whiteboard device according to claim 2, wherein the light source body is a laser emitter.

6. A virtual electronic whiteboard device, comprising: a first line source (2), a camera (3) and a support rod (4), one end of the support rod (4) is connected to the first line source (2), and One end of the camera (3), the first line source (2) includes at least one light source body (202) and a filter (201) mounted on the lining supported by the bottom plate (206) On the plate (203), the bottom plate (206) is fixed in the frame (204) by four bolts (205), and the frame (204) is in close contact with the bracket (207), the bracket (208) and the cover plate (209). The bracket (208) is provided with a knob (210) for adjusting the angle of the support rod (4), and the bracket (208) further includes a data board (211) connected to the light source body (202) through the wire harness (212).

The virtual electronic whiteboard device according to claim 6, wherein the support rod (4) is a telescopic structure.

8. The virtual electronic whiteboard device according to claim 6, wherein said camera (3) Angle adjustable structure.

The virtual electronic whiteboard device according to claim 6, wherein the first line light source (2) further comprises a filter (201) for ray filtering the light source body (202).

10. A virtual electronic whiteboard device, comprising: a second line source (32), a camera (3) and a support rod (4), one end of the support rod (4) is connected to the second line source (32), and the other end is connected a camera (3), the second line source (32) includes at least one light source body (202),

Further comprising a second whiteboard (8), the upper region of the second whiteboard (8) has a whiteboard groove surface (82), the groove surface (82) having a concave groove surface step (81) for mounting Two-wire source (32).

The virtual electronic whiteboard device according to claim 10, wherein at least two light source bodies (202) are symmetrically mounted inside the rear cover (320) of the second line light source (32), and the heat sink is closely attached. (324).

The virtual electronic whiteboard device according to claim 10, wherein the rear cover (320) of the second line light source (32) has a first mounting surface (322) and a second mounting surface (323), first a convex step (321) between the mounting surface (322) and the second mounting surface (323), matching the groove surface of the second white plate (8)

A concave groove surface step (81) of (82) for stably mounting the second line source (32).

The virtual electronic whiteboard device according to claim 12, wherein the rear cover (320) has a light shielding surface (326), and the light shielding surface (326) and the rear cover (320) of the rear cover (320) There is a ray step (327) between the second mounting faces (323), and the second line source (32) is mounted on the second whiteboard

After the white plate groove surface (82) of (8), the ray step (327) causes the light shielding surface (326) of the rear cover (320) to form a second line light source emitting slit with the whiteboard surface of the second white plate (8) (9) ), to prevent the divergence effect of the rays.

The virtual electronic whiteboard device according to claim 10, wherein the second line source (32) has a filter (201).

The virtual electronic whiteboard device according to claim 9, wherein the support rod (4) is a telescopic structure.

The virtual electronic whiteboard device according to claim 10, wherein the camera (3) has an angle adjustable structure.

The virtual electronic whiteboard device according to claim 10, wherein the second line source (32) comprises a data board (211) connected to the light source body (202) by a wire harness (212).

18. The virtual electronic whiteboard device of claim 10, wherein the second line source (32) The rear cover (320) has a reinforcing structure (325) inside.

19. A virtual electronic whiteboard device according to claim 10, wherein the second line source (32) has a standard computer data interface.

20. A virtual electronic whiteboard device according to claim 10, wherein the second line source (32) has two symmetrically mounted light source bodies (202).

A virtual electronic whiteboard device according to claim 10, wherein the light source body (202) of the second line source (32) employs a laser reticle.

A virtual electronic whiteboard device according to claim 14, wherein the filter (201) of the second line source (32) is in the shape of a curved surface.