基于MEMS多功能体感输入系统研究与设计

Research and design of MEMS based multi functional system

如今越来越多的无线体感输入设备应用在多媒体场合。针对该设备功能单一同时价格昂贵等缺点,本文提出了一种简易多功能体感输入系统。该系统具有鼠标、手柄、滚轮等多种计算机外设功能。设计采用加速度传感器感应手掌在空间x和y方向上的加速度大小,将加速度信号处理转换成手掌的倾角姿态、转动角速度等运动参数,同时根据用户选择的功能模式动态调用相应的控制算法对手势运动进行分析处理,实现不同的输入设备功能。实验结果表明该输入系统能顺利的反映用户操作意图,操作简便、工作稳定,特别适合会议、教室、展厅等场合。

Nowadays more and more wireless gesture devices used in multimedia areas. Because of single function and high priced, this paper presents a simple multifunctional gesture input system. It has a variety of computer peripherals functionality such as mouse, joystick and wheel. The system gets palm's acceleration parameters on x and y directions with the help of acceleration sensors. It converts acceleration signals into the angle of palm, angular velocity and so on. At the same time, according to user-select-ed functional mode, it calls the corresponding algorithms for gesturing analysis and processing. Finally, it achieves different input de-vices'functions. The tests show that the system can successfully reflect user intentions. It is stable and easy to operate, particularly suitable for meetings, classrooms, halls, and other occasions.