编码电子锁的设计与制作

编码电子锁的设计与制作

郑州科技学院

专科毕业设计（论文）

设计题目: 电子密码锁的设计 专 业: 机电一体化技术 姓 名: XXX 班 级: 学 号: 指导教师: XXXXX

完成时间： 2010年12月20

I

编码电子锁的设计与制作

编码电子锁的设计与制作

摘 要

本文的电子密码锁利用数字逻辑电路，实现对锁的电子控制，并且有各种附加电路保证电路能够安全工作。因为可选密码很多且有开锁时间限制，所以有极高的安全系数。

电路输入密码经编码器编码，经密码储存控制电路输入存储电路，作为初始密码。当输入开锁密码时，密码存储控制电路先将输入密码依次输入到相应的存储芯片中。如开锁密码与预设密码相互对应则电路输出开锁信号并消除报警信号，否则不输出开锁信号。当开始输入开锁密码时报警电路工作，当在预设时间内没有输出开锁信号，报警电路发出报警。

关键词 预置密码；开锁；报警

I

编码电子锁的设计与制作

CODE DESIGN AND PRODUCTION OF ELECTRONIC LOCK

ABSTRACT

This locks the use of electronic digital logic circuits，realize the electronic control lock, and a variety of additional circuitry to ensure the safety circuit. Optional password for unlocking and have a lot of time constraints, so there are very high safety factor.

Circuit by the encoder password, the password storage control circuit input memory circuit, as the initial password. When you enter unlock password, the password stored in the control circuit first enter a password in order input to the corresponding memory chip. If the password and the default password unlock each lock signal corresponding to the circuit output and eliminate the alarm signal, or do not lock the output signal. When police began to enter the password lock circuit, when there is no output at the preset time lock signal, the alarm circuit alarm.

KEY WORDS preset password; unlock; alarm

II

编码电子锁的设计与制作

目 录

摘 要 ............................................................................................................................ I ABSTRACT ................................................................................................................... II 1. 绪 论 .................................................................................................................. 1

1.1 课题背景及意义 ..................................................................................... 1 2. 方案论证及系统框图 ...................................................................................... 2

2.1 方案论证 ................................................................................................... 2

2.1.1方案一 ................................................................................................ 2 2.1.2方案二 ................................................................................................ 2 2.1.3方案三 ................................................................................................ 2

2.2 方案比较 ................................................................................................... 3 2.3系统框图 .................................................................................................... 3 3. 编码电子锁设计 ............................................................................................... 4

3.1 工作原理 ................................................................................................... 4 3.2 元器件选择与制作................................................................................. 4 4. 电子元器件 ......................................................................................................... 6

4.1 变压器 ........................................................................................................ 6

4.1.1 我国变压器发展历史 ....................................................................... 6 4.1.2 变压器的简介 ................................................................................... 7 4.1.3 变压器组成 ....................................................................................... 8 4.1.4 变压器的制作原理 ........................................................................... 8

4.2 继电器 ........................................................................................................ 8

4.2.1 继电器的定义 ................................................................................... 9 4.2.2 继电器的继电特性 ........................................................................... 9

III