(完整word版)基于51单片机的指纹密码锁设计.docx

基于 51 单片机指纹电子密码锁设计 摘要 随着人民生活水平的提高，如何实现家庭防盗这一问题也变得尤其突出，传统的 机械锁由于其构造简单，安全性低，无法满足人们的需求。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中首选的控制器， 所以具有防 盗报警功能的电子密码锁控制系统逐渐代替传统的机械式密码控制系统， 克服了机械 式密码锁控制的密码量少，安全性能差的缺点。
在传统的身份认证中，我们往往使用密码加密法，但是这种方法只是 " 防君子不
防小人 " 。在高明的黑客眼里，由几个字符组成的密码脆弱得不堪一击。现在，科技 的发展让我们有了新的选择——生物识别技术。将生物识别技术应用于笔记本、 门锁 等方面，可以对文件、财产起保护作用，并且可以进行身份识别。生物识别技术的发 展主要起始于指纹研究，它亦是目前应用最为广泛的生物识别技术。
本设计开发了一款基于单片机的指纹识别电子密码锁系统。该系统以 STC89C52 单片机作为模块核心，通过串口通信控制 ZFM-60 指纹模块实现录取指纹并存储指纹 数据，并通过HS12864-15C液晶显示比对流程及比对结果，辅以直流继电器与发光二 极管模拟***的动作。本系统具有体积小、性价比高、传输速度快、适合家庭及单位 使用。
关键词 ：单片机，密码锁，指纹识别
51 single fingerprint-based electronic code lock
design
ABSTRACT
With the improvement of people's living standards, how to achieve family security issue has become particularly prominent, the traditional mechanical locks becauseof its simple structure, low security, can not meet people's needs. As electronic products to intelligent miniaturized and the continuous development of SCM has become the electronic product research and development preferred controller, the electronic lock control system with anti-theft alarm function gradually replace the traditional mechanical control systems with code, overcome password less, poor safety performance shortcomings of mechanical lock control.
In traditional identity, we tend to use password encryption method, but this method only "anti-anti-villain is not a gentleman." In the eyes of clever hackers, password consists of several characters fragile too vulnerable. Now, the development of science and technology so that we have a new option - biometrics. The biometric technology used in notebook, door locks, etc., they can file for protection of property, and can be identifiable. biometric technology in fingerprint primary origin research, it is also the most widely used biometric technology.
The system design of fingerprint recognition electron password lock based on Single-chip microprocessor is developed in the thesis. The system STC89C52 MCU as the core mo