设计简介：
项目名：基于单片机的指纹密码双重锁的设计
单片机：STC12C5A60S2
项目编号：mcuclub-dz-019
功能简介：
1、通过4*4的矩阵键盘可输入密码、添加指纹、删除指纹、修改初始密码
2、通过AT24C02存储初始密码，实现掉电保存初始密码
3、通过DS1302获取时间，并将时间的月的最后一位日的最后一位以及小时的两位、分钟的两位分别和初始密码进行叠加，每位只保留个位，组成动态6位密码
4、通过JM-101指纹模块，可录入指纹、搜索指纹、删除指纹
5、当指纹匹配吻合后，密码也要正确才可开门
6、当输入密码错误时，通过语音播报“密码错误”，当指纹不匹配时，通过语音播报“指纹不匹配”，错误次数大于等于3次，进行锁定键盘3分钟，并蜂鸣器报警10s
7、通过继电器控制门磁锁，模拟开门和关门
8、通过LCD1602显示输入的密码（*号表示，防止被偷看）
总字数：11739
实物链接：点击跳转
仿真链接：点击跳转
设计说明书链接：点击跳转
开题报告链接：点击跳转
答辩PPT链接：点击跳转
摘 要
随着当前人们经济的发展，人们生活水平的提高，当前人们对财产安全和人身安全的重视程度越来越高，此次设计一款指纹电子密码锁，主要是为了解决当前大部分用户使用的密码锁在输入密码锁被旁人盗取，或者存在有人多次输入密码从而盗取用户密码，给用户造成财产损失。
此次设计的基于STC89C52单片机控制的电子密码锁。该机器通过使用单片机STC89C52进行编写程序，并使用LCD1602显示密码。当前输入的六个数字使用“*”显示在屏幕上。正确输入密码后，继电器控制门锁打开，并且显示屏会显示门已打开；当错误的密码或者录入指纹错误时，语音播报密码错误或者指纹不匹配，错误次数超过三次时，蜂鸣器会发出警报信号，自动锁定键盘三分钟。用户可以根据需求重新设置电子锁密码和录入指纹，修改的密码和录入的指纹进行断电保持。
此次设计可以解决当前，电子密码的输入密码过程中密码被盗窃，或者被不法分子对当前密码锁的试错从而打开用户家中进行盗窃。此次设计的电子密码锁具有操作监简单、保密性强、防偷窥的优势。
Abstract
With the development of people’s economy and the improvement of people’s living standards, people pay more and more attention to property safety and personal safety. The design of a fingerprint electronic password lock is mainly to solve the problem that most users use the password lock in the input password lock is stolen by others, or there are people repeatedly enter the password to steal the user password. Cause property damage to users.
The design based on STC89C52 MCU control of electronic password lock. The machine through the use of single chip microcomputer STC89C52 programming, and use LCD1602 display password. The six numbers currently entered are displayed on the screen using “*”. After entering the correct password, the relay controls the door lock to open, and the screen will show that the door is open; When an incorrect password or fingerprint input is incorrect, the voice will broadcast the incorrect password or fingerprint mismatch. If the number of incorrect passwords exceeds three times, the buzzer will send an alarm signal and automatically lock the keyboard for three minutes. The user can reset the electronic lock password and input fingerprint as required. The changed password and input fingerprint are kept off power.
The design can solve the current, electronic password input password in the process of password theft, or by the criminals on the current password lock trial and error to open the user’s home for theft. The design of the electronic password lock has the advantages of simple operation supervision, strong confidentiality and anti-peeping.
Keywords: password lock; Fingerprint; Dynamic password; Anti-snooping; Voice broadcasting
目录
摘 要
Abstract
第1章 引 言
第2章 系统设计方案
第3章 硬件设计
第4章 系统程序设计
第5章功能测试
结论
参考文献