1、 毕 业 论 文 作 者: 学号: 12 学 系: 电子信息工程与技术系 专 业: 应用电子 题 目: 基于单片机控制的电子密码锁 指导者: 摘 要 在日常的生活和工作中, 住宅与部门的安全防范、单位的文件档案、财务 报表以及一些个人资料的保存多以加锁的办法来解决。 若使用传统的机械式钥匙 开锁,人们常需携带多把钥匙, 使用极不方便, 且钥匙丢失后安全性即大打折 扣。随着科学技术的不断发展,人们对日常生活中的安全保险器件的要求越来越 高。为满足人们对锁的使用要求,增加其安全性,用密码代替钥匙的密码锁应运 而生。密码锁具有安全性高、成本低、功耗低、易操作等优点。在安全技术防范 领域,具有防盗报警
2、功能的电子密码锁逐渐代替传统的机械式密码锁,克服了机 械式密码锁密码量少、安全性能差的缺点,使密码锁无论在技术上还是在性能上 都大大提高一步。随着大规模集成电路技术的发展,特别是单片机的问世,出现 了带微处理器的智能密码锁,它除具有电子密码锁的功能外,还引入了智能化管 理、专家分析系统等功能,从而使密码锁具有很高的安全性、可靠性,应用广泛。 本系统由单片机系统、矩阵键盘、LED 显示和报警系统,修改用户密码等功能。 除上述基本的密码锁功能外,依据实际的情况还可以添加遥控功能。本系统成本 低廉,功能实用。 关键词关键词 STC89C52 LCD 电子密码锁 矩阵键盘 Abstract In th
3、e day-to-day living and working in the residential sector and the safety precautions, units of paper files financial statements, and some personal information to the preservation of more than locking the solution to the problem. If the use of traditional mechanical key to unlock, people often need t
4、o carry more keys, a very inconvenient to use, and after the loss of key security that is greatly reduced. With the continuous development of science and technology, in the daily lives of people on insurance safety devices increasingly demanding.To meet the requirements of the use of locks to increa
5、se their security, with a password instead of the password key lock came into being. Password lock is safe, low cost, low power consumption, easy to operate, and other advantages In the field of preventive security technology, anti-theft alarm function with the electronic code lock gradually replace
6、 the traditional mechanical lock password, to overcome the mechanical password lock code less, poor safety performance of the shortcomings of the password lock regardless of the technical or performance Have greatly improved step. With the evelopment of large-scale integrated circuit technology, in particular, the advent of microcontroller, a microprocessor with a smart password lock