本文提出一種由數(shù)字信號處理DSP 系統(tǒng)控制的含有心理節(jié)奏特征的節(jié)奏碼的使用及一
維信號模式識別方法。通過用手有節(jié)奏地擺動遮擋紅外線就可以輸入密碼，程序與預先儲存的密碼模式進行比對識別，得到確認的密碼就可以控制開鎖。為了適應結(jié)構(gòu)簡化與密碼隱蔽操作的需求，輸入設(shè)備簡化到只用一個紅外反射式接近傳感器取代通常的數(shù)字鍵盤，一個LED 雙色發(fā)光二極管取代其他顯示裝置。重點闡述了系統(tǒng)的硬件電路以及軟件的實現(xiàn)方法。對該系統(tǒng)進行了實驗，驗證了方法的正確性和有效性，系統(tǒng)有很高的可靠性。
關(guān)鍵詞：節(jié)奏特征；DSP；模式識別；紅外線；密碼操作

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