Infrared multipoint interactive electronic whiteboard system and whiteboard projection calibration method

Abstract

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...

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

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