指紋U盤的設(shè)計(jì)

指紋U盤的設(shè)計(jì),指紋,設(shè)計(jì) 指紋U盤的設(shè)計(jì) 摘要 針對(duì)指紋的唯一性和終身不變性的特點(diǎn)，本文提出了一種基于FPS200固態(tài)指紋傳感器和TMS320VC5402 DSP芯片的快速指紋識(shí)別系統(tǒng)，給出了系統(tǒng)的設(shè)計(jì)方案。 本文實(shí)現(xiàn)了利用TI 公司的TMS320VC5402 芯片對(duì)指紋采集芯片F(xiàn)PS200 采集到的指紋圖像數(shù)據(jù)進(jìn)行圖像預(yù)處理后, 再通過(guò)USB2.0 接口將數(shù)據(jù)傳輸?shù)街鳈C(jī)中與U盤中注冊(cè)過(guò)的指紋進(jìn)行顯示和對(duì)比的具體過(guò)程；對(duì)系統(tǒng)的組成原理、指紋采集和指紋圖像處理方法進(jìn)行了具體分析；結(jié)合FPS200和TMS320VC5402芯片的特性，對(duì)系統(tǒng)硬件核心和圖像采集電路做了詳細(xì)分析，并給出系統(tǒng)硬件設(shè)計(jì)方案、軟件設(shè)計(jì)流程圖。通過(guò)本研究工作證明了系統(tǒng)設(shè)計(jì)合理，方案可行，成本較低，能夠?qū)崿F(xiàn)U盤上的指紋識(shí)別，有重要的實(shí)用價(jià)值與廣泛的應(yīng)用前景。 關(guān)鍵詞： 指紋識(shí)別,U盤,DSP,FPS200 The U Disk Design Of Fingerprint Identification Abstract As the uniqueness and constancy of fingerprint，a quick fingerprint recognition system based on fingerprint sensor FPS200 and DSP chip TMS320VC5402 is presented． The fingerprint image data collected by FPS200 is pretreated by TMS320VC5402 firstly , and then is transmitted by USB2.0 interface to host for show and fingerprint identification. The composing principles of the system，fingerprint collection and fingerprint image processing methods are introduced particularly．With the characteristics of FPS200 and TMS320VC5402，the core of the hardware，collecting circuit and the designs of the hardware and software are introduced in details．Through this research ,the work system design is reasonable, and the project can go, and the cost is low, which can carry out the fingerprint of U disk to identify and have important practical value and extensive of applied foreground. Keywords: fingerprint identification , U disk , DSP , FPS200