Infrared multipoint 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
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
CN102880360AActive Publication Date: 2013-01-16NORTHEASTERN UNIV
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[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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The invention discloses an infrared multipoint interactive electronic whiteboard system and a whiteboard projection calibration method and belongs to the field of electronic whiteboards. The system comprises a computer, a projector, a projection screen, an infrared camera, an infrared pen, a laser positioning device, the computer internally comprises a background wireless data controller and a foreground multipoint interactor, the background wireless data controller comprises a calibration module, a Bluetooth wireless communication module and a wireless data processing module, and the foreground multipoint interactor comprises a gesture recognition module, a drawing function module, a picture display function module, a video display function module, a PPT (power point) file playing operation module, a PDF (portable document format) file playing operation module, a handwritten input recognition module and a small-window display module. By the system and the method, except for basic functions, control functions of opening, full-screen playing, page turning, free writing and the like of PPT and PDF files are further increased.
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...
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Patent Timeline
16 Jan 2013
Publication
CN102880360A
- IPC
- G06F3/042; G06F3/01; G06F3/0488
- Inventors
- 任涛; 方正