红外密码锁设计

为了改进现有的开锁设备,设计了一种红外密码锁,分为红外密码发送端和红外信号接收端两部分,分别以8位单片机STC89C52为核心进行控制。在发送端以红外发射二极管发射的红外光为载波,进行密码信号的发射与传输,该密码由使用者从矩阵键盘输入。在接收端进行红外密码信号的接收、处理和验证,并作出开锁或报警响应。该系统结构简单、成本低、实用性强可适用于智能家居仓储管理等场合.

The Design of Infrared Trick Lock

In order to improve the lock equipments,a kind of infrared trick lock has been designed,which consisted of two parts——the infrared password sending part and the infrared signal receiving part.Both these two parts used the 8 bits MCU—— STC89C52 as the controllers.In the sending part,an infrared diode has been used to created infrared light as the carrier wave,with the carrier wave,the password signal which input through a matrix keyboard can be transmitted from the sending part to the receiving part.In the receiving part,the infrared signal can be received,processed and checked,and then the relative response such as unlocking and alarming can be made.The system has the advantages of simple structure,low cost and good practicability,which can be used in the fields of smart home system,warehouse management and so on.