基于蓝牙低功耗技术的触控颜色书写笔自动识别研究与应用

Research and Application Based on Bluetooth Low Energy Technology

具备多点触控功能的交互式一体机近年来在教育行业被广泛应用。老师利用一体机进行交互式多媒体教学,大大提高了学生的听课兴趣。老师讲课时,有时需要对不同内容用不同颜色标注以加深学生的印象。目前的做法是用一种颜色的触控笔在应用软件上点击颜色按钮来切换书写颜色,操作不熟的老师可能很长时间都找不到颜色切换按钮,大大降低了老师讲课的流畅性和连贯性。若是有多种颜色的书写笔,每种笔能智能识别书写者的颜色意图就会大大提高老师换笔速度,保持教学的流畅性和连贯性,极大地提高教学效率。本文介绍了采用低功耗蓝牙技术,结合CC2541芯片,达到触控书写笔颜色智能识别的目的。

Interactive integrated machine with multi touch function is widely used in education field in recent years. Teachers use one machine for interactive multimedia teaching, greatly improve the students' interest in listening to lectures. When the teacher lectures, and sometimes the need for different content with different colors to deepen the impression of students. Current practice is a color of the stylus on the application software click the color button to switch the colour of writing, not familiar with the operation of the teacher may be a long time can not find button to switch the color, greatly reduce the teacher's fluency and coherence. If there are a variety of color writing pens, each pen can intelligently identify the color intention of the writer will greatly improve the speed of change of teachers, to maintain the fluency and continuity of teaching, greatly improve the efficiency of teaching.This paper uses low-power Bluetooth technology, combined with CC2541 chip, to achieve the purpose of touch pen color intelligent identification.