基于单片机的密码锁设计  

Design of Cipher Lock based on Single Chip Microcomputer

作　　者：刘志君[1] 王亭 LIU Zhi-jun;WANG Ting

机构地区：[1]辽宁科技学院电信学院,辽宁本溪117004

出　　处：《辽宁科技学院学报》2017年第6期7-9,共3页Journal of Liaoning Institute of Science and Technology

基　　金：辽宁科技学院青年基金项目(Qn201605)

摘　　要：指纹密码锁的设计采用的是以单片机AT89C52为主要的控制器,主要由液晶显示电路、指示(LED)电路、报警(蜂鸣器)电路,开锁电路等组成。指纹处理采用DSP芯片,通过proteus软件进行仿真,绘制PCB板,基于C51编写程序来实现指纹密码锁的功能。指纹密码锁可实现6位密码输入和指纹采集,密码或指纹正确则锁打开;修改密码和指纹需要二次确认,以防止误操作;解锁错误次数超过3次,蜂鸣器报警。设计此系统的密码锁具有较高的安全性和科学性。A design of fingerprint cipher lock is based on taking single chip microcomputer AT89C52as the main controller,it is comprised of the liquid crystal display circuit,instruction(LED)circuit,alarm(buzzer)circuit,and lock circuit.The fingerprint processing is realized by using DSP chip,by simulation with the software proteus,and based on C51programming to realize fingerprint cipher lock function.The operation of fingerprint cipher lock is controlled by a six digit number and fingerprint acquisition.Any change for fingerprint and digit cipher need a second confirm,in order to prevent wrong operation.If unlock error appears more than3times,the buzzer alarm.The design of cipher lock has high security and scientificalness.

关 键 词：AT89C52 矩阵键盘 指纹采集 LCD显示 蜂鸣器 

分 类 号：TS914.211.7[轻工技术与工程] TP368.1[自动化与计算机技术—计算机系统结构]