基于AT89S51的多功能电子密码锁设计  

Design of multifunctional electronic coded lock based on AT89S51

作　　者：张云[1] 周明辉 周海林[1] 李爱华[1] 孟玮[1] 

机构地区：[1]军械工程学院,河北石家庄050003 [2]河北省石油化工建设工程质量监督站,河北石家庄050003

出　　处：《电子设计工程》2010年第6期23-25,共3页Electronic Design Engineering

基　　金：军械工程学院科学研究基金资助项目(08038)

摘　　要：为了提高电子密码锁的安全性、降低功耗和成本,采用单片机AT89S51与低功耗CMOS型E2PROM AT24C02作为主控器件与数据存储器单元,结合外围的键盘输入、显示、报警、开锁、串行通信等电路构成一款密码可更改,并具有报警、实时监控和远程管理功能的电子密码锁。以Visual Basic语言和汇编语言交叉使用进行程序设计,简化源程序结构及代码,降低ROM空间的占用。利用总线通信控制器,以PC机为上位机,以电子密码锁单片机构成下位机,构成主从式串行通信网络,实现网络区域化管理。For improving security,reducing power consumption and cost,this paper designs a new type electronic coded lock ,which has the function of alarm and code can be changed by many times. It also has real-time monitoring and remote management capabilities. The lock uses AT89S51 SCM and E2PROM AT24C02 as main chip and data memory cell,which united with some peripheral equipment such as keyboard input circuit,display circuit,alarm circuit and unlock circuit, whose software is wrote by VB language and assemble language. It can simplify the structure and source code ~nd reduce the space occupied by ROM.Using of bus communication controller,the host PC does PC ,and electronic lock does the lower position chip microprocessor,constituting a master-slave serial communication network,which can achieve regional management of the network.

关 键 词：密码锁 单片机 报警 串行通信 

分 类 号：TP39[自动化与计算机技术—计算机应用技术]