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基于双模块定位的超宽屏电子白板设计 被引量:2

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摘要 本文提出了一种采用双模块定位的超宽屏交互式电子白板系统的整体软硬件实现方案,能够实现传统教学黑板4m*1.5m范围内精确定位和超宽屏书写。系统基于红外超声波进行定位,为提高测距精度,在软件上加入了多点校准算法保证定位的准确性。为了使两个接收器在中间定位重合的区域协调工作,解决在融合区笔迹坐标选择问题,结合实际提出了一种线性融合的思路。实验结果表明系统实现了超宽屏书写,并适合在不同材质上使用,其通用性强,可靠性高。
出处 《电子世界》 2014年第11期139-140,共2页 Electronics World
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