便携式心率采集系统设计学生：学号：指导教师：助理指导教师：专业：摘要随着生物医学工程技术的发展,医学信号测量仪器日新月异。生物医学测量与临床医学和保健医疗的联系日益紧密。通过对人体各种生理信号的检测，能更好的认识人体的生命现象，这其中脉搏信号包含丰富的人体健康状况信息,从中提取的心率值对人体健康有着重要的参考作用。本文采用光电反射式传感器,设计了一套便携式可穿戴的获取和保存脉搏信号的系统。本设计主要是基于STM32L低功耗单片机，利用光电传感器产生脉冲信号，经过放大整形滤波后，输入单片机内AD进行采样并将数字化后的脉搏信号和计算出的心率值保存在SD卡中。后期通过上位机软件可以观测脉搏信号，对人体健康进行评估，因此该系统适用于保健中心、医院和家庭等场所。本设计所设计的基于单片机的便携式心率采集系统对推进脉诊技术客观化和HRV研究具有积极的促进作用。关键词：脉搏，单片机，光电传感器，脉冲信号，便携式ABSTRACTABSTRACTWiththedevelopmentofthebiomedicalengineeringtechnology,themedicalsignalmeasuringinstrumentischangingeveryday.Biomedicalmeasurementandclinicalmedicineandhealthcareincreasinglycloseties.Wecouldbetterunderstandthephenomenonofhuman.lifethroughvariousphysiologicalsignaldetectionofthehumanbody.Pulseinclusionsrichstateofthehealthinformation,Byusingopticalsensors,Withthehighdevelopmentofelectronicsandcomputernowadays,thepulsediagnosingtechnologyshouldbeobjectiveandquantitive.thistextaccesstothepulsesignaldesignmethods.Thispapermainlyintroducestheconcreterealizationmethodfordigitalpulsecounter,whichusesphotoelectricsensorstogeneratepulsesignal.ThepulsesignalisamplifiedandregeneratedtoinputintoMCUtocarryoutcorrespondingcontrol,asaresultthepulsenumberperaminuteismeasured.Theuseofthepulsecounterisquickandconvenient.Throughobservingthepulsesignal,humanhealthcanbeinspected,itisusuallyusedinhealthcarecentersandthehospitals.Inmydesign,PortableheartratemeasuringinstrumentbasedonMCUhasapositiveroleinpromotingtheobjectiveofthepulsetechnology.Keywords：Pulse,MCU,PhotoelectricSensor,PulseSignal,Portable目录摘要............................................................................................................IABSTRACT.................................................................................................II1绪论............................................................................................................11.1课题研究背景及意义............................................................................................................11.2脉搏检测仪介绍....................................................................................................................21.3关于本文主要研究内容及方法.............................................................................................42整体系统结构...........................................................................................62.1脉搏测量模块........................................................................................................................72.1.1常用的脉搏检测方法..................................................................................................72.1.2光电式脉搏传感器.....................................................................................................72.2采集记录模块......................................................................................................................112.2.1主控单元.....................................................................
