1、 毕业设计说明书 高可靠性电子锁仿真设计 高可靠性电子锁仿真设计高可靠性电子锁仿真设计 摘要 随着电子产品向智能化和微型化的不断发展， 单片机已成为电子产品研制和开 发首选的控制器。随着人们生活水平的提高，如何实现家庭防盗这一问题也变得尤 其突出，传统的机械锁由于其构造的简单，安全性能低，无法满足人们的需要。本 设计从经济实用的角度出发， 采用美国 Atmel 公司的单片机 AT89C51 作为主控芯片 与数据存储器单元结合外围的键盘输入、显示、报警、开锁等电路，用汇编语言编 写主控芯片的控制程序，设计了一款可以多次更改密码具有报警功能的电子密码 锁。 关键词：密码锁，单片机，报警 Simul
2、ation design of high reliability electronic lock Abstract As electronic products are developing towards intelligence and minimization, single-chip computers (SCM) have become the first choice for controllers in the development of electronic products. With the improvement of peoples living standards,
3、 it has become particularly prominent about how to achieve anti-theft family. The traditional mechanical lock has such shortcoming as simple structure, low security, it cant meet peoples demands. For practicality, this paper designs a new electronic cipher lock, which has the function of alarm and w
4、hose cipher can be changed many times. This cipher lock uses AT89C51 SCM as main chip. The author made this cipher lock by use of making controlled program of master CMOS with periphery electrocircuit of keyboard input, display, alarm and unlock. Key words: Cipher lock, SCM, Alarm 第 I 页 共页 目 录 1 绪论 1 1.1 研究的目的及意义 . 1 1.2 电子锁的国内外现状 . 1 1.3 本设计所要实现的目标 2 2 电子锁概览 2 2.1 电子锁的概念 . 2 2.2 电子锁的分类 . 3 2.2.1 电子锁按照输入密码方式可以分为以下几类 . 3 2.2.2 电子锁按照使用元器件的不同可以分为以下几类 . 4 2.3 电子密码锁的特点 4 3 设计方案 5 3.1 方案一：采用数字电路
