【正文】 識(shí)別、聲音識(shí)別等，但其中一部分技術(shù)含量高的生物識(shí)別手段還處于實(shí)驗(yàn)階段。 生物識(shí)別技術(shù)概述 所謂生物識(shí)別技術(shù) [2]就是，通過計(jì)算機(jī)與光學(xué)、聲學(xué)、生物傳感器和生物統(tǒng)計(jì)學(xué)原理等高科技手段，利用人體固有的生理特性，（如指紋、臉象、紅膜等）和行為特征（如筆跡、聲音、步態(tài)等）來進(jìn)行個(gè)人身份的鑒定。 由于本系 統(tǒng)采用的是單片機(jī)作為主控 MCU，所以在實(shí)時(shí)性，擴(kuò)展性上受到了極大的限制，但是也有它自身的突出的優(yōu)點(diǎn)和意義，那就是以最簡單的，處理數(shù)據(jù)能低的 MCU 完成了指紋識(shí)別系統(tǒng)應(yīng)該具備功能。由于指紋識(shí)別技術(shù)的廣泛應(yīng)用，人們對(duì)它的研究也日趨成熟。 ③終生不變性 [1]， 非意外事故發(fā)生終身不變。指紋含有天然的密碼信息， 其具有作為密碼信息必須具備的三個(gè)重要性質(zhì)： ①廣泛性，每個(gè)人都有自己的指紋，很普遍。生物識(shí)別技術(shù)開始走進(jìn)安全系統(tǒng)，指紋識(shí)別作為生物識(shí)別的一種已經(jīng)獲得 了廣泛的應(yīng)用。而我們大多數(shù)人則喜歡采用配備各種鑰匙，保險(xiǎn)柜，防盜報(bào)警等傳統(tǒng)安全系統(tǒng)。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(shí)別技術(shù)概述 ......................................................................................................... 1 指紋識(shí)別技術(shù)概述 ......................................................................................................... 2 指紋識(shí)別研究現(xiàn)狀 ......................................................................................................... 3 論文內(nèi)容安排 ................................................................................................................. 4 第 2 章 指紋識(shí)別基本原理 ..................................................................................................... 4 指紋學(xué)的基本知識(shí) ......................................................................................................... 4 指紋的形成 .............................................................................................................. 4 指紋的相關(guān)概念 ...................................................................................................... 5 自動(dòng)指紋識(shí)別原理 ......................................................................................................... 7 指紋識(shí)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(shí)別系統(tǒng)硬件設(shè)計(jì) ........................................................................................... 10 相關(guān)器件介紹 ............................................................................................................... 10 STC12C5A60S2 的結(jié)構(gòu)與特點(diǎn) ............................................................................ 10 指紋識(shí)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(shè)計(jì) ....................................................................................................................... 17 通訊協(xié)議 ...................................................................................................................... 19 單片機(jī)和 FM180 的通信 ..................................................................................... 19 單 片機(jī)和 PC 機(jī)的通信 ......................................................................................... 20 硬件電路設(shè)計(jì) ............................................................................................................... 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(qū)動(dòng)電路 ................................................................................................ 23 蜂鳴器驅(qū)動(dòng)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(jié) ................................................................................................................... 28 參考文獻(xiàn) ................................................................................................................................. 29 致 謝 ..........................