基于单片机指纹识别系统设计（硬件） 摘要 伴随科学技术飞速进展，传统安全系统安全性越来越脆弱，自动指纹识别技术集保密性强、差错率低等优点，已经广泛应用到需要身份认证各种领域。本文简述了指纹和指纹识别系统，并在此基础上重点讨论了基于单片机指纹识别系统硬件设计和制作。系统实行是增强型 51 单片机STC12C5A60S2 作为主控芯片，而 FM—180 指纹识别模块作为指纹采集和处理关键。经过二者通信完成对指纹采集，录入，提取特征值，比对等功效。设计表明经过简单原理能够实现指纹识别相关功效，加深了我们对指纹识别原理了解，和对单片机应用。 关键词：指纹识别 STC12C5A60S2 FM —180 硬件 Design being based on Single-chip Fingerprint Identification System （hardware） Abstract With the rapid development of science and technology, the safety of traditional security system become more and more weak and the automatic fingerprint recognition technology is superior in confidentiality and error rate. Therefore the automatic fingerprint recognition technology has been widely applied to those kinds of area where need identification .This article illustrates the fingerprints and fingerprint identification system and on this basis, we focus on the hardware design and the fabrication of the fingerprint identification system. The System employs the enhanced 51 MCU STC12C5A60S2 as the main control chip and the FM-180 fingerprint module as the core of the fingerprint collection and processing. By the communication of MCU and FM-180 ,it could finish fingerprint's acquisition, entry, extraction for feature values, contrast and so on. The design shows the fingerprint identification can be achieved by a simple principle and thus we deepen our comprehension of the principle of fingerprint identification and understand the application of the single-chip fingerprint identification system. Key Words: Fingerprint identification STC12C5A60S2...
