Research On The Key Technology Of Interactive Photoelectric Whiteboard

Along with the information quantity of people’s daily life required increasing, whiteboard has replaced the traditional blackboard, and widely used in actual life. But high-end electronic whiteboard price remains high, and many functions are not suitable for casual users, resulting in a waste of resources. In order to make the electronic whiteboard to be more widely, this paper studied a kind of novel interactive photoelectric whiteboard system.This paper firstly studied wireless power supply and single-double-clip signal transmission technology of the light pen, realize the basic functions of a wireless power supply light pen. Then such as CMOS image sensor information acquisition, infrared light spot positioning, wireless data transmission technologies in the hardware system had been studied to complete the information processing of the two-dimensional coordinates and single-double-clip signal, and transmitted to the computer for subsequent operations. After the final test, the system can meet all the basic functions of the interactive electronic whiteboard, and greatly reduces the cost, which was favorable for the popularization and use.