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Infrared multi-point interactive electronic whiteboard system and whiteboard projection calibration method

An electronic whiteboard, infrared technology, applied in the direction of user/computer interaction input/output, mechanical mode conversion, electrical digital data processing, etc., can solve the problem of reducing the availability and efficiency of electronic whiteboards, and it is difficult to reflect the advantages of electronic whiteboards and other issues to achieve the effect of enhancing interactivity, reducing dependence, and facilitating deployment

Active Publication Date: 2016-01-20
NORTHEASTERN UNIV LIAONING
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  • Abstract
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  • Claims
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AI Technical Summary

Problems solved by technology

However, as a new type of teaching and conference tool, the electronic whiteboard is difficult to reflect the advantages of the electronic whiteboard in the teaching field without the specific software designed for the electronic whiteboard.
For example, many speakers like to use PPT files and PDF files as presentation documents. If they cannot directly annotate, write, draw, etc. on PPT files or PDF files, the speaker must write on the blackboard again and return to the original teaching method. This greatly reduces the usability and efficiency of the electronic whiteboard

Method used

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  • Infrared multi-point interactive electronic whiteboard system and whiteboard projection calibration method

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Embodiment Construction

[0058] Embodiments of the invention will be further described below in conjunction with the accompanying drawings.

[0059] like figure 1 As shown, an infrared multi-point interactive electronic whiteboard system includes a computer 1, an infrared camera 2, 3, a projector 4, an infrared pen 5 and a projection screen 6. In the embodiment of the present invention, the infrared pen adopts a switch-type infrared Pen or pressure-sensitive infrared pen, the infrared camera adopts two Wii game controllers. The computer is connected to the projector, and the placement position of the infrared camera (Wii game controller) is set.

[0060] figure 2 It is a schematic diagram of a laser positioning device in an embodiment of the present invention. The laser positioning device is set outside the infrared camera, and by comparing the four laser heads on the laser positioning device, it irradiates the four laser points on the projection screen and the four corners of the projection screen...

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Abstract

The present invention is an infrared multi-point interactive electronic whiteboard system and a whiteboard projection calibration method, belonging to the field of electronic whiteboards. The system includes a computer, a projector, a projection screen, an infrared camera and an infrared pen, and also includes a laser positioning device; the computer It includes a background wireless data controller and a front-end multi-point interactor. The back-end wireless data controller includes a calibration module, a Bluetooth wireless communication module and a wireless data processing module; the front-end multi-point interactor includes a gesture recognition module, a drawing module, and a gesture recognition module. Function module, picture display function module, video display function module, PPT file playback operation module, PDF file playback operation module, handwriting input recognition module and small window display module; in addition to basic functions, the present invention also adds functions for PPT and PDF files The control functions include opening, full-screen playback, page turning, free writing and other functions for PPT and PDF files.

Description

technical field [0001] The invention belongs to the field of electronic whiteboards, in particular to an infrared multi-point interactive electronic whiteboard system and a whiteboard projection calibration method. Background technique [0002] With the rapid development of social economy and science and technology, human society has already entered the information age, especially the wide application of information technology and mass media, which is constantly changing people's traditional concepts and lifestyles, bringing new challenges to all aspects of human society. Revolutionary change and far-reaching impact. Education has gradually become the top priority of social development, and it has attracted more and more attention. Only a good education display platform can make society develop rapidly. The disadvantages of traditional education and teaching, such as limited educational space, staged educational time limit, lagging educational content, and limited education...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F3/042G06F3/01G06F3/0488
Inventor 任涛方正黎夏郭放达曹介谊龚尚周涛邱仁权李艺刘诗琦
Owner NORTHEASTERN UNIV LIAONING
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