A method of key positioning based on laser virtual keyboard

The paper puts forward a method of virtual keyboard key positioning based on infrared laser reflection and image processing technology. In this paper, the positioning principle is introduced first. And the experimental system is established based on image acquisition, image transformation, threshold selection and binarization processing and identification of key placement. Tested in the indoor environment, the method can achieve characters input efficiently and accurately. And the key positioning has high accuracy, validity and reliability. So the method which has a high practical value provides a good theoretical basis for design of virtual keyboard application.

激光虚拟键盘的设计与实现

随着计算机技术的发展和移动设备的普及,传统的机械式键盘已经不能够满足用户的需要,本文基于激光投影、红外激光定位和图像分析技术,提出了激光虚拟键盘系统的设计,阐述了其工作原理,建立了实验系统,验证了系统的可靠性和稳定性,实验证明,该系统不仅可以应用到移动设备中,也可以应用到医疗和工业控制领域。

ICU远程监护系统

随着信息化时代的飞速发展,医院的理念和服务将相应改变。利用计算机技术和网络技术等现代科技的先进成果,改善传统的医院病房监护系统势在必行,智能化的医院病房监护系统的实现使住院患者,尤其是重危病人的康复更加安全有效。本系统以STM32F103ZET单片机为基础,利用GSM、TFTLCD、Pulse sensor等模块并结合激光虚拟键盘构建了新型病房监护和医疗办公系统,并验证了系统的可靠性和稳定性。