Whiteboard Hardware And Software System Based On Infrared Positioning

With the degree of social information and the continuous development of digital multimedia technology, human-computer interaction more complex, more and more large amount of information handled, and therefore the equipment to achieve human-computer interaction put forward higher requirements. In the field of office automation and teaching, they often need to be explained using the projection on the projection also need to annotate documents, but also to operate a computer to flip, etc, on the limitations of the computer speakers around the same time speaking to operate a computer, will not be able to do with the speaker has adequate communication. The lectures are usually done while listening records, but also affect the effect of listening. It requires a white board to project, write, operate computers, records and writes the content, whiteboard meet this demand, was growing rapidly.This article based on the progress achieved in the field whiteboard to design anti-interference infrared electronic whiteboard, while using computer handwriting identification and records, simplifies the whiteboard on the embedded system hardware requirements, effectively reducing the cost of good versatility, while providing a good interface to subsequent treatment" Achievement of whiteboard hardware and software based on infrared positioning system " using infrared light modulation, demodulation techniques to overcome the interference of light using the environment to use serial communication to upload location data to the computer, use the C # language PC applications, the system can replace the traditional blackboard, projection screen, combined with the large screen display and whiteboard control technology, a new type of interactive computer input and output devices, applications can be achieved in teaching human-computer interaction and good teacher-student interaction, whiteboard provides a rich resource base, so that teaching aids were easy to find, background, pictures, sound, software, and other resources, as a powerful presentation tool, and can more effectively attract audience attention, improve teaching quality.