基于单片机指纹识别的电子密码锁设计 - 图文

论文题目：基于单片机指纹识别的电子密码锁设计

毕业设计（论文）

系 部： 自动控制系

专 业： 楼宇智能化工程技术 班 级： 学生姓名： 学 号： 指导教师：

2016 年 4 月20 日

摘要

摘要

随着社会的发展和科技的进步，传统的安全防盗系统面临极大的挑战。生物识别技术的蓬勃发展，让人们对于安防系统的设计有了另一种灵感，指纹锁应运而生。可供二次开发的指纹模块已经解决了指纹图像的处理问题，如何实现这种技术的实际应用已经成为急需解决的问题，本设计利用单片机对指纹模块的控制实现了这种技术的应用。设计以指纹传感器对指纹图像的采集为基础，通过单片机控制指纹模块实现对指纹图像的组合处理，系统的各项具体功能皆建立在相应的指纹图像的组合处理基础之上，系统主要实现了指纹模板的录入以及指纹匹配功能。

关键词：指纹识别技术；指纹锁；系统设计；单片机

I

ABSTRACT

ABSTRACT

With the development of the society and the progress of science and technology, The traditional security system faced with great challenges. With the vigorous development of Biometric Identification Technology, people have another kind of inspiration to design the lock，Fingerprint lock arises at the very historical moment. The fingerprint module for secondary development has solved the problem of image processing, The remaining problem is how to take advantage of the technology in practice. This design has realized the application, which mainly based on the control from MCU to the module of fingerprint. The foundation of this design is fingerprint collection, Through the control from MCU to the module can realize the combination of image processing, based on the combination of image processing can realize the various functions of the system . The mainly functions of the system include the landing and matching of fingerprint template .

Keywords: Fingerprint identification technology；Fingerprint lock；System design；singlechip

II

河南工学院毕业论文

目 录

第1章 引 言 ............................................................................................................... 1

1.1 课题研究意义 .............................................................................................. 1 1.2 指纹识别简介 .............................................................................................. 2

1.2.1指纹识别原理 ............................................................................................................ 2 1.2.2 指纹识别应用 ........................................................................................................... 3

1.3 国内外指纹锁发展的历史和现状 .............................................................. 3 1.4 本论文的研究内容及结构 .......................................................................... 4 第2章 整体设计方案 ................................................................................................... 5

2.1 系统功能设计 .............................................................................................. 5 2.2 系统总体框架 .............................................................................................. 5 第3章 系统硬件的选择及电路设计 ........................................................................... 7

3.1单片机的选择 ............................................................................................... 7 3.2 ATmega16单片机外围电路设计 ................................................................. 9 3.3 指纹模块 ZFM-206电路 .......................................................................... 10 3.4 ADC键盘电路 ............................................................................................ 11 3.6 DS1302电路 ............................................................................................... 13 3.7 电子锁及相关电路 .................................................................................... 14 第4章 系统软件设计 ................................................................................................. 16

4.1 整体程序流程图 ........................................................................................ 16 4.2 指纹识别程序设计 .................................................................................... 18 4.3 ADC键盘程序设计 .................................................................................... 21 4.4 DS1302程序设计 ....................................................................................... 22 4.5 液晶RX12864ZW程序设计 .................................................................... 23 第5章 实物制作与调试 ............................................................................................. 25 5.1 电路的焊接 ................................................................................................ 25

5.2电路和程序的调试 ..................................................................................... 25 结 论 ............................................................................................................................. 26