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摘要随着人们生活的水平不断提高，生活方式、饮食结构不断改变，习惯的变化和高节奏的生活导致了高血压、冠心病等心血管疾病成为常见病与多发病。要避免和减少高血压、冠心病这类心血管疾病给人类健康带来的严重危害，有效的旱期诊断治疗方法和设备，快速的发病后的救治手段都是非常重要的,这些也正是当前广大医学界专家正在共同努力研究的重点。而脉搏是人体活动最重要、最灵敏和最可靠的信息源，是反映人体健康状况的重要窗口，而对脉搏的提取速度又快，因此利用脉搏信号快速的发现病因也是一个有效的方法。本课题采用嵌入式与无线通讯技术，提出处理脉信号的新方案,即采集及处理与无线发送部分（前端系统）+无线接收与PC机显示部分（后端系统）。前端系统主要负责脉搏信号的采集和初步处理并发送，能够单独工作；通过无线接收和串口接口连接到PC机上显示，后端系统主要负责跟踪显示由前端系统传递来的信号。正是有了无线接收模块的作用，使得系统具备了远程监测的能力。本文论述了课题研究的现状和意义以及设计方案；介绍了主要的芯片的原理和他们的使用方法；阐述了硬件设计与软件设计方案；说明了相应软件的流程和方法，并解说了相应硬件与软件的调试。最后对所做的工作进行了分析和总结，指出了系统涵待改进和提高的地方，展望了系统今后的发展方向。关键词:嵌入式系统;无线收发模块;串口;传感器AbstractWithpeople'sliveshasimprovedcontinuously,lifestyle,thechangingstructureofdiet,habitschangeandthehightempooflifehasledtohypertension,coronaryheartdiseaseandothercardiovasculardiseasesbecamecommondiseasesandfrequently-occurringdisease.Topreventandreducehypertension,coronaryheartdiseasesuchcardiovasculardiseasetotheserioushumanhealthhazards,effectivediagnosisandtreatmentofthedrymethodandequipment,rapidonsetoftreatmentmethodsareveryimportant,thesearepreciselythecurrentThebroadmassesofmedicalexpertsareworkingtogetherthefocusofthestudy.Thepulseofhumanactivitiesisthemostimportantandmostsensitiveandmostreliablesourceofinformation,toreflectthehealthstatusofanimportantwindowonthepulseofthefastspeedofextraction,useofrapidpulsesignalsthatcauseisalsoaneffectivemethod.Theissuewiththeuseofembeddedwirelesstechnology,networksignalprocessingbythenewprogramme,acquisitionandprocessingandwirelesstransmitterpart(front-endsystems)+wirelessreceiverandPCrevealedthatsomeof(back-endsystems).Front-endsystemismainlyresponsibleforthesignalpulseofthecollectionandinitialprocessingandsendtoseparateworkandawirelessreceiverconnectedtotheserialinterfaceonaPC,back-endsystemismainlyresponsibleforthetrackingsystemshowsthatthefrontendtothetransmissionsignal.Itispreciselybecauseoftheroleofthewirelessreceivermodules,makingtheremotemonitoringsystemhastheability.Thisarticlediscussestheissueofthestatusandsignificanceofresearchanddesignprogrammes;Onthemainchipandtheprincipleoftheuseoftheirmethodsonthedesignofhardwareandsoftwaredesign;notethecorrespondingsoftwareprocessesandmethodologiesandexplainthecorrespondinghardwareandsoftwaredebugging.Finally,theworkdonebyananalysisandconcludedthattheculvertsystemtobeimprovedandincreasedlocalandlookingforwardtothesystem'sfuturedevelopmentdirection.Keywords:Embeddedsystems;wirelesstransceivermodule;Serial;sensor目录引言.........................................................11课题现状及研究意义........................................21.1课题现状............................................................21.2研究意义............................................................32方案论证..................................................42.1方案选择............................................................42.2系统框图............................................................53主要芯片介绍..............................................73.1光电传感器..........................................................73.2Atmega8515..........................................................73.3无线收发模块.......................................................113.4MAX232芯片........................................................144硬件设计.................................................164.1采集部分...........................................................164.2滤波部分...........................................................174.3放大部分...........................................................184.4555施密特整形电路.................................................194.5下位机处理部分.....................................................204.5.1单片机复位电路...................................................204.5.2数码管显示部分电路...............................................214.5.3无线发送模块部分.................................................214.5.4单片机的晶振和中央处理部分.......................................224.6上位机部分.........................................................234.6.1无线接收模块部分.................................................234.6.2接收数据处理部分.................................................234.6.3串口部分.........................................................245软件设计.................................................275.1下位程序设计的流程图...............................................275.2无线模块部分.......................................................275.3上位机部分流程图...................................................285.4VB界面............................................................286系统调试与验证...........................................306.1硬件调试...........................................................306.1.1采集部分.........................................................306.1.2滤波部分.........................................................306.1.3放大部分.........................................................316.1.4555整形部分的调试...............................................316.1.5下位机处理部分...................................................316.1.6上位机处理部分...................................................326.2软件调试...........................................................326.2.1下位机处理部分.....