基于DSP的指纹识别系统设计

2014届本科生毕业论基于DSP的指纹识别系统设计院系：电子与信息学院专业：通信工程姓名：xxxxx指导教师：xxxx答辩日期：二〇一四年五月毕业论文诚信声明本人郑重声明：所呈交的毕业论文《基于DSP的指纹识别系统设计》是本人在指导老师的指导下，独立研究、写作的成果。论文中所引用是他人的无论以何种方式发布的文字、研究成果，均在论文中以明确方式标明。本声明的法律结果由本人独自承担。作者签名：指导教师签名：年月日摘要指纹识别技术是数字图像处理技术的基础上,逐步发展。相对于古代的身份认证技巧,如暗码、种种文凭和其余生物认证技术,如语音、虹膜、指纹识别是一种更合理的身份认证技巧。利用指纹识别有许多好处如:每个人的指纹都是有差异的,极难复制或被盗,指纹是确定的,不随岁数的变化或康健程度改变;最重要的是最重要的是指纹图像是很容易的，容易的识别系统，实用和较高的可行性。当代电子集成建设技巧许可咱们做出一个十分小的指纹图象读取装配，同时飞速发展的个人计算机运算速率供应了在微机乃至DSP上能够运行两个指纹的比对运算。指纹识别算法是非常成熟的，可用于安全检测设备和控制各种各样的东西。现在,指纹识别应用领域的考勤,门禁,安全内阁,相信随着指纹识别技术的提高,也广泛应用于身份证、车辆、家庭等领域。本设计主要利用MBF200指纹传感器和TMS320C5402组成指纹识别模块，实现指纹识别的算法，并把成果经过串口送出来。控制部分的核心是TMS320C5402，它完成与指纹识别模块、PC机的通信，并控制各种外围电路的工作。已经完成的设计是访问控制的功能，访问控制功能，适用于公共场所和私人住宅，并能记录收盘纪录。【关键字】MBF200TMS320C5402步进电机串口通信AbstractFingerprintidentificationtechnologyisdigitalimageprocessingtechnology,onthebasisofgradualdevelopment.Relativetotheancientidentityauthenticationtechniques,suchascombination,thediplomaandtherestofthebiometrictechnologies,suchasspeech,iris,fingerprintrecognitionisamorereasonableidentityauthenticationtechniques.Byusingfingerprintidentificationhasmanyadvantages,suchas:therearedifferencesineachperson'sfingerprintsare,verydifficulttocopyorstolen,thefingerprintiscertain,donotchangewiththechangeoftheageorfitnesslevel;Isthemostimportantisthemostimportantfingerprintlikeeasy,easyidentificationsystem,practicalandhighfeasibility.Modernelectronicintegrationconstructionskillspermissionlet'smakeaverysmallfingerprintimagereadassembly,atthesametime,therapiddevelopmentofpersonalcomputingratetosupplyonthemicrocomputerandDSPcanruntwofingerprintmatchingcomputation.Fingerprintidentificationalgorithmisverymatureandcanbeusedforsafetyinspectionequipmentandcontrolallkindsofthings.Now,fingerprintidentificationapplicationinthefieldofattendance,accesscontrol,securitycabinet,believethatwiththeimprovementofthefingerprintidentificationtechnology,alsowidelyusedintheidentificationcard,vehicle,householdandotherfields.ThisdesignmainlyuseMBF200fingerprintsensorandTMS320C5402fingerprintidentificationmodule,realizesthefingerprintidentificationalgorithm,andthroughaserialporttosendouttheresults.ControlpartisthecoreofTMS320C5402,itcompletewithfingerprintidentificationmoduleandPCcommunications,andcontrolstheworkofvariouskindsofperipheralcircuit.Hascompletedthedesignoftheisafunctionofaccesscontrol,accesscontrolfunction,applytothepublicandprivatehouse,andcanrecordrecordcloses.【keyword】MBF200TMS320C5402stepelectromotortheserialcommunication目录摘要..............................................................................................................................3ABSTRACT........................................................................................................................4一引言........................................................................................................................11.1DSP指纹识别系统研究的背景与问题概述.....................................................11.1.1DSP指纹识别系统的研究背景..................................................................11.1.2DSP指纹识别系统的研究概述..................................................................21.2DSP指纹识别系统研究的意义和重要性.........................................................21.2.1研究的意义..................................................................................................21.2.2研究的重要性.............................................................................................31.3研究的内容和主要工作.....................................................................................31.3.1研究的内容..................................................................................................31.3.2本人研究的主要工作和结构安排..............................................................4二相关技术简介..........................................................................................................42.1嵌入式系统简介.................................................................................................42.1.1嵌入式系统简介..........................................................................................42.1,2数字信号处理器..........................................................................................5三设计目标及设计方案论证......................................................................................53.1系统的功能要求及目标.....................................................................................53.2系统的整体框架及设计方案.............................................................................8四系统原理与设计......................................................................................................84.1TMS320C5402结构及其主要特点.....................................................................94.2基于DSP指纹识别系统原理..........................................................................104.3硬件设计...........................................................................................................114.3.1电源、复位电路设计................................................................................114.3.2JTAG仿真接口电路..................................................................................