基于心理节奏特征的节奏码识别与控制系统研究

本文提出一种由数字信号处理DSP 系统控制的含有心理节奏特征的节奏码的使用及一
维信号模式识别方法。通过用手有节奏地摆动遮挡红外线就可以输入密码，程序与预先储存的密码模式进行比对识别，得到确认的密码就可以控制开锁。为了适应结构简化与密码隐蔽操作的需求，输入设备简化到只用一个红外反射式接近传感器取代通常的数字键盘，一个LED 双色发光二极管取代其他显示装置。重点阐述了系统的硬件电路以及软件的实现方法。对该系统进行了实验，验证了方法的正确性和有效性，系统有很高的可靠性。
关键词：节奏特征；DSP；模式识别；红外线；密码操作

Development on Recognition and Control System of the rhythm Code Based on Characteristics of the Psychological Rhythm TianWenJie，LiShuFen （Automation Institute of BEIJING Union University ， BEIJING ，100101，China） Abstract: This article introduced a kind of pattern recognition method the rhythm code with the psychological rhythm characteristics by use of DSP. The hand was keeping block infrared through a swinging rhythm to input the password, which was compared with the pre-stored password pattern to recognize. Confirmed passwords could be allowed to control and open the lock. In order to adapt the structure simplification and the demand of password hiding operation, the input device was simplified to only use a reflective infrared sensor to replace the usual numeric keyboard, a two-color LED diode to replace other display units. Its hardware circuit and software design ware mainly described. The results demonstrated the validity of all the methods proposed in the dissertation, and the test showed this system had high reliability.
Key word: characteristics of rhythm; DSP; pattern recognition; Infrared; password operation