CN211787035U - Solid-state laser radar intelligent white board - Google Patents
Solid-state laser radar intelligent white board Download PDFInfo
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- CN211787035U CN211787035U CN202020235492.3U CN202020235492U CN211787035U CN 211787035 U CN211787035 U CN 211787035U CN 202020235492 U CN202020235492 U CN 202020235492U CN 211787035 U CN211787035 U CN 211787035U
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- laser radar
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Abstract
The utility model discloses a solid-state laser radar intelligent whiteboard, which belongs to the technical field of laser radar touch control and mainly solves the problem that the whiteboard cannot realize touch control interaction; the projector comprises a computer display, a computer host and a projector, and is characterized in that: the system comprises a computer host, a laser radar, a data processing module and a film, wherein the laser radar is communicated with the computer host in a wireless or wired connection mode, and the film is adhered to a wall; the laser radar is fixed on the wall body and is positioned above the film; the data processing module runs on the computer host, receives point cloud data sent by the laser radar, detects a touch event of a user on the film after algorithm processing, and finishes a touch interaction function after sending the touch event to an application program; the laser radar is a 2D solid-state laser radar. The invention can be used for a remote video conference system and a training teaching system.
Description
Technical Field
The utility model belongs to the technical field of the laser radar touch-control, concretely relates to solid-state laser radar intelligence blank.
Background
At present, a projector is generally projected on a white wall or a curtain, but touch interaction cannot be carried out in a projection area; particularly in the education industry, the traditional blackboard is always the medium for interaction between teachers and students, but in the electronic and digital teaching reform, although more than 30% of classrooms are provided with electronic whiteboards and projectors, the traditional blackboard plays a great auxiliary role in teaching; but electronic whiteboards have disadvantages: namely, the high-cost, heavy, small-size, generally below 80 inches, and the mass above 40kg, is not waterproof, shockproof, collision-free and smashing-free. In addition, more than 95% of classrooms are equipped with a projection curtain and a projector, and the projector can only passively play contents and cannot meet interactive operation in the teaching process.
Chinese patent No. 201821150790.1, entitled "a non-contact virtual touch device", provides a non-contact virtual touch device, including: the guide rail platform is vertical to the display equipment, arranged above the display equipment and connected with the bracket in a turnover manner through the rotary connecting part; the guide rail is arranged in the guide rail platform in a sliding mode, one end, far away from the display equipment, of the guide rail is provided with a sensing camera device, the other end of the guide rail is provided with a laser light source, and a laser light curtain projected by the laser light source is parallel to the surface of the display equipment. The technical scheme has more related parts, and adopts a sensing camera device, so that touch interaction is complicated, and the system cost is high;
chinese patent application No. 201910190662.2, patent name "interactive system of integrated radar" provides an interactive system of integrated radar, this system integration radar module and with the host computer that the radar module is connected, its characterized in that: the radar module is integrated in a fixed position of the system to form an interactive system. The touch interactive systems with different sizes are met by the number of the radar modules; the radar module is a radar module of radio frequency signals. The technical scheme has the defects of low precision, incapability of continuously writing with fingers and incapability of continuously drawing pictures with high precision by using the fingers. The calibration is complex, the interference is easy to happen, and the user experience is poor in the actual use process.
The common remote video conference system in the prior art can not be touched, written by fingers, zoomed in and zoomed out, can not draw key points, can not send a bullet screen, can not send characters and photos, can not send characters and videos, can not send jobs, can not send test papers and roll calls, needs 4 ten thousand yuan for the cost of 10 branch companies, can not be used as a common white board, and can not be written by a white board pen.
At present, some schools adopt 80-inch touch liquid crystal display screen teaching, cannot write with a whiteboard pen, are often broken, cannot realize the PPT and video function, cannot accept a barrage, cannot send characters and pictures remotely, cannot send characters and videos remotely, cannot roll a roll, cannot accept documents, cannot send jobs and cannot send test papers, and the price is 3 to 5 thousands.
Disclosure of Invention
The utility model discloses a solve the unable interactive problem of touch-control of present blank, provide a pad pasting formula multipurpose touch-sensitive screen interactive system.
The utility model discloses a solve above-mentioned technical problem and the technical scheme who takes is:
solid-state laser radar intelligence blank, including computer display, computer, projecting apparatus, its characteristics are: the system comprises a computer host, a laser radar, a data processing module and a film, wherein the laser radar is communicated with the computer host in a wireless or wired connection mode, and the film is adhered to a wall; the laser radar is fixed on the wall body and is positioned above the film;
the data processing module runs on the computer host, receives point cloud data sent by the laser radar, detects a touch event of a user on the film after algorithm processing, and finishes a touch interaction function after sending the touch event to an application program;
the wired connection mode comprises a 100M Ethernet network, a USB serial port and an RS232 serial port, and the wireless connection mode comprises Bluetooth and Wi-Fi;
the laser radar is a 2D laser radar, and a transmitted light module covers the projection imaging area on the film; when a user touches the projection area, the optical film is blocked, and the optical film is detected by a laser radar and position coordinate information is calculated;
the laser radar is a solid laser radar and does not contain moving parts;
the angular resolution of the laser radar is less than or equal to 0.15 DEG, and the precision is 1 mm;
the laser radar is also provided with a fine adjustment mechanism, and the angle of the emitted optical film is adjusted through the fine adjustment mechanism so that the emitted optical film is parallel to the imaging plane;
the sticking film is made of nano graphene and a ferromagnetic soft board, and the thickness of the sticking film is 1.2mm to 1.6 mm;
the solid-state laser radar intelligent whiteboard touch interaction method is characterized by comprising the following steps: the method comprises the following steps:
fixing a laser radar above an imaging area, and ensuring that an optical film emitted by the laser radar covers and is parallel to the imaging area through a fine adjustment mechanism;
secondly, acquiring point cloud data of the imaging area sent by the laser radar through a data processing module arranged in a computer host;
thirdly, filtering and clustering the point cloud data by a data processing module to extract touch point coordinates;
step four, the data processing module transforms the coordinates of the touch points to the upper surface of a display coordinate system from a laser radar coordinate system;
and step five, the data processing module sends the final touch event to the application program.
Compared with the prior art, the utility model, following beneficial effect has:
the utility model adopts the miniaturized and low-cost solid laser radar, the mature projector, the computer host and the like to form a touch interactive system, which is easy to popularize and use; the solid laser radar is simple to install and debug and easy to use and maintain; the miniaturized solid-state laser radar does not contain moving parts, and the system is stable in operation and long in service life.
The utility model can be used for a remote video conference system and a training and teaching system, can be touched and written by hands, can be enlarged and reduced by hands, supports 40 points to touch simultaneously, can be used for interactive touch multimedia courses, can play interactive touch games, can be interactive remotely, can launch barrage, can launch characters and photos remotely, can launch characters and videos remotely, can call a roll, send a job, judge the job, push PPT before meeting, display PPT and video on a mobile phone at the same time, a computer with a foreground, and the background control of the mobile phone, the background mobile phone can see the bullet screen of the owner of the branch company, the question of the owner, the document and the voice sent by the owner can be written by using a common whiteboard pen when the power is not on, and the price of the mobile phone is only one tenth of that of a similar product in the prior art by supporting 100 branch meeting places.
The utility model is used for teaching or long-range video conference, can realize the barrage, can roll the call, can send the operation, judge the operation, can realize 40 touch, can do interactive touch multimedia course, can play interactive touch recreation, can realize different intelligent gesture touches, can send the paper and judge the paper, can realize PPT and long-range video show simultaneously, long-range characters and photo can be sent, long-range characters and video can be sent, the speaker can share received photo or video for all personnel, can write in real time and record the screen, can directly reform transform by the current blackboard of transfinition, the price is prior art 1/10, the touch-sensitive screen size reaches 100 inches.
Drawings
Fig. 1 is a schematic structural diagram of the utility model.
Wherein: 1-computer display; 2-a computer host; 3-laser radar; 4, pasting a film; 5, a projector; 6, a wall body.
Detailed Description
As shown in fig. 1, the solid-state lidar intelligent whiteboard comprises a computer display 1, a computer host 2 and a projector 5, and is characterized in that: the system is characterized by further comprising a laser radar 3, a data processing module and a film 4, wherein the laser radar 3 is in communication with the computer host 2 in a wireless or wired mode, and the film is adhered to the wall 6; the laser radar 3 is fixed on the wall body 6 and is positioned above the film 4;
the data processing module runs on the computer host 2, receives point cloud data sent by the laser radar 3, detects a touch event of a user on the film 4 after algorithm processing, and finishes a touch interaction function after sending the touch event to an application program;
the wired connection mode comprises a 100M Ethernet network, a USB serial port and an RS232 serial port, and the wireless connection mode comprises Bluetooth and Wi-Fi;
the laser radar 3 is a 2D laser radar and emits a light mode to cover the projection imaging area on the film 4; when a user touches the projection area, the optical film is blocked, and the optical film is detected by the laser radar 3 and position coordinate information is calculated;
the laser radar 3 is a solid laser radar and does not contain moving parts;
the angular resolution of the laser radar 3 is less than or equal to 0.15 degrees, and the precision is 1 mm;
the laser radar 3 is also provided with a fine adjustment mechanism, and the angle of the emitted optical film is adjusted through the fine adjustment mechanism, so that the emitted optical film is parallel to the imaging plane;
the film 4 is made of nano graphene and a ferromagnetic soft board, and the thickness is 1.2mm to 1.6 mm;
the solid-state laser radar intelligent whiteboard touch interaction method is characterized by comprising the following steps: the method comprises the following steps:
fixing a laser radar 3 above an imaging area, and ensuring that an optical film emitted by the laser radar covers and is parallel to the imaging area through a fine adjustment mechanism;
secondly, acquiring point cloud data of the imaging area sent by the laser radar through a data processing module arranged in a computer host 2;
thirdly, filtering and clustering the point cloud data by a data processing module to extract touch point coordinates;
step four, the data processing module transforms the coordinates of the touch points to the upper surface of a display coordinate system from a laser radar coordinate system;
and step five, the data processing module sends the final touch event to the application program.
Claims (7)
1. Solid-state laser radar intelligence blank, including graphoscope (1), computer (2), projecting apparatus (5), characterized by: the system is characterized by further comprising a laser radar (3), a data processing module and a film (4), wherein the laser radar (3) is communicated with the computer host (2) in a wireless or wired mode, and the film (4) is pasted on the wall body (6); the laser radar (3) is fixed on the wall body (6) and is positioned above the film (4);
the data processing module runs on the computer host (2), receives point cloud data sent by the laser radar (3), detects a touch event of a user on the film (4) after algorithm processing, and sends the touch event to an application program to complete a touch interaction function.
2. The solid state lidar smart whiteboard of claim 1, wherein: the wired connection mode comprises a 100M Ethernet network, a USB serial port and an RS232 serial port, and the wireless connection mode comprises Bluetooth and Wi-Fi.
3. The solid state lidar smart whiteboard of claim 1, wherein: the laser radar (3) is a 2D laser radar, and emits a light mode to cover the projection imaging area on the film (4); when a user touches the projection area, the optical film is blocked, and the position coordinate information is detected and calculated by the laser radar (3).
4. The solid state lidar smart whiteboard of claim 1, wherein: the laser radar (3) is a solid laser radar and does not contain moving parts.
5. The solid state lidar smart whiteboard of claim 1, wherein: the angular resolution of the laser radar (3) is less than or equal to 0.15 degrees, and the precision is 1 mm.
6. The solid state lidar smart whiteboard of claim 1, wherein: the laser radar (3) is also provided with a fine adjustment mechanism, and the angle of the emitted optical film is adjusted through the fine adjustment mechanism, so that the emitted optical film is parallel to the imaging plane.
7. The solid state lidar smart whiteboard of claim 1, wherein: the film (4) is made of nano graphene and a ferromagnetic soft board, and the thickness of the film is 1.2mm to 1.6 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020235492.3U CN211787035U (en) | 2020-03-01 | 2020-03-01 | Solid-state laser radar intelligent white board |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020235492.3U CN211787035U (en) | 2020-03-01 | 2020-03-01 | Solid-state laser radar intelligent white board |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211787035U true CN211787035U (en) | 2020-10-27 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020235492.3U Expired - Fee Related CN211787035U (en) | 2020-03-01 | 2020-03-01 | Solid-state laser radar intelligent white board |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111273818A (en) * | 2020-03-01 | 2020-06-12 | 北京联控科技发展有限公司 | Solid-state laser radar intelligent white board |
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2020
- 2020-03-01 CN CN202020235492.3U patent/CN211787035U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111273818A (en) * | 2020-03-01 | 2020-06-12 | 北京联控科技发展有限公司 | Solid-state laser radar intelligent white board |
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| 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: 20201027 |