【正文】 cation .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 FM180 fingerprint module as the core of the fingerprint collection and processing. By the munication of MCU and FM180 ,it could finish fingerprint39。本文簡述了指紋和指紋識別系統(tǒng)，并在此基礎上重點研究了基于單片機的指紋識別系統(tǒng)的硬件設計和制作。系統(tǒng)采用的是增強型 51單片機 STC12C5A60S2 作為主控芯片，而 FM— 180指紋識別模塊作為指紋采集和處理的核心。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 prehension of the principle of fingerprint identification and understand the application of the singlechip fingerprint identification system. Key Words: Fingerprint identification STC12C5A60S2 FM180 hardware 3 目 錄 論文總頁數(shù)： 34頁 第 1 章 緒 論 ..................................................................................................................... 1 課題的背景和意義 ........................................................................................................ 1 生物識別技術概述 ......................................................................................................... 1 指紋識別技術概述 ......................................................................................................... 2 指紋識別研究現(xiàn)狀 ......................................................................................................... 3 論文內(nèi)容安排 ................................................................................................................. 4 第 2 章 指紋識別基本原理 ..................................................................................................... 4 指紋學的基本知識 ......................................................................................................... 4 指紋的形成 .............................................................................................................. 4 指紋的相關概念 ...................................................................................................... 5 自動指紋識別原理 ......................................................................................................... 7 指紋識別系統(tǒng) ................................................................................................................. 8 指紋采集 .................................................................................................................. 8 圖像處理 .................................................................................................................. 9 特征提取 .................................................................................................................. 9 指紋匹配 ................................................................................................................ 10 第 3 章 指紋識別系統(tǒng)硬件設計 ........................................................................................... 10 相關器件介紹 ............................................................................................................... 10 STC12C5A60S2 的結構與特點 ............................................................................ 10 指紋識別模塊 FM180 .......................................................................................... 13 12864 液晶顯示器介紹 ...................................................................................... 15 功能描述 ....................................................................................................................... 16 系統(tǒng)硬件概述 ............................................................................................................... 17 方案設計 ....................................................................................................................... 17 通訊協(xié)議 ...................................................................................................................... 19 單片機和 FM180 的通信 ..................................................................................... 19 單 片機和 PC 機的通信 ......................................................................................... 20 硬件電路設計 ............................................................................................................... 21 最小系統(tǒng)電路 ........................................................................................................ 22 功能選擇電路 ....................................................................................................... 22 4 模式指示燈 ............................................................................................................ 23 液晶顯示驅動電路 ................................................................................................ 23 蜂鳴器驅動電路 ................................................................................................... 24 串口電路 ................................................................................................................ 24 第 4 章 硬件電 路制作和調(diào)試 ............................................................................................... 26 繪制 PCB 板 ................................................................................................................ 26 布局要求 ................................................................................................................ 26 布線要求 ................................................................................................................ 26 制作和調(diào)試 ................................................................................................................... 26 第 5 章 總 結 ................................................................................................................... 28 參考文獻 ............................................................