文档介绍:《单片机技术》课程设计说明书
密码锁
系、部:
学生姓名:
指导教师: 职称
专 业: 通信工程
班 级:
2013年12月
完成时间:
随着电子技术的发展,具有防盗报警等功能的电子密码锁代替密码量少、 安全性差的机械式密码锁已是必然趋势。电子密码锁与普通机械锁相比,具有 许多独特的优点:保密性好,防盗性强,可以不用钥匙,记住密码即可***等。 目前使用的电子密码锁大部分是基于单片机技术,以单片机为主要器件,其编 码器与解码器的生成为软件方式。
本次设计使用AT89S52实现一基于单片机的电子密码锁。本系统由单片机 系统、矩阵键盘、LCD12864显示、EEPROM掉电保护模块和报警系统组成。系统 能完成***、超次锁定、修改用户密码等基本的密码锁的功能,系统具有掉电 不消失的管理员密码。除上述基本的密码锁功能外,依据实际的情况还可以添 加扩展功能。本系统成本低廉,功能实用。
关键词:密码锁;单片机;LCD
ABSTRACT
With the development of electronic technology, which has the function of anti-theft alarm and other electronic combination lock instead of password quantity is little, security, poor mechanical combination lock is inev it able t rend. Elec tronic combina tion lock compared with ordinary mechanical lock, has many unique advantages: good secrecy, anti-theft sex is strong, can need not the key, remember password lock, etc. Currently use electronic combination lock is mostly based on single chip microcomputer technology, single chip microcomputer as the main device, the encoder and decoder for software・
This design uses AT89S52 to realize the electronic password lock based on MCU. This system consists of SCM system, matrix keyboard, LCD12864 display, EEPROM power down protection module and alarm system. The system can complete the lock,super lock, modify user passwords and other basic password lock func tion, the sys tem has the elec trie ity does not disappear administrator password. In addition to the above basic password lock function, based on the actual situation can also add the extension function. This system has the advantages of low cost, practical function.
Key words password lock; meu; led
1设计课题任务、功能要求说明及总体方案介绍 0
0
0
0
2设计课题硬件系统的设计 1
1
、PCB图、元器件布局图 2
2
3设计课题软件系统的设计 3
3
3
3设计课题软件系统程序流程框图 4
9
4设计结论、运行结果、误差分析及体会 10
10
10
12
4 设计