基于PIC16F873单片机的电子安全密码锁的设计  

Design of Electronic Secure Code Lock Based on PIC16F873 Single-chip Computer

作　　者：朱英明[1] 

机构地区：[1]莱芜职业技术学院信息工程系

出　　处：《电子技术（上海）》2008年第11期23-25,共3页Electronic Technology

摘　　要：鉴于各种安全产品生产成本高,携带、安装、使用不方便等缺点,以PIC16F873为主设计了电子安全密码锁。为提高安全性和实用性,本密码锁采用软、硬件结合,实现两级"误码锁定":当连续输入错3次开启密码时,便出现第一级"误码锁定",通过输入修正密码消除第一级"误码锁定"。当连续输入错3次修正密码时,自毁电路起作用,实现第二级"误码锁定"。并且该密码锁可以随时修改两组密码。本密码锁保密性强、制造成本低廉,特别适用于家庭、办公室、宾馆等场所。In view of the shortcoming of the expensive production cost and inconvenience on carrying,installation and using of various security products,the electronic security code lock mainly based on is desinged.To improve safety and practicality,the password lock software and hardware is integrated,realized two-stage error password locking.The first stage error password locking appesrs when the wrong password is input continuously three times,in this case,inputing modified password can eliminate the first-stage password locking.Self destroying circuit work and realize the second-stage error password locking.And two group password of secure code lock can be modified whenever.The electronic secure code lock is applied Particularly at homes,offices,hotels and other places for its high security and low-cost.

关 键 词：PIC16F873 密码锁 安全性 误码锁定 

分 类 号：TS914.211.7[轻工技术与工程]