光电式脉搏波无线测量系统东南大学王晨迪,王衡，朱文琦（东南大学生物科学与医学工程学院，江苏省南京市210096）指导教师：汪丰副教授摘要：本项目研制的光电式脉搏波无线测量系统包括脉搏波测量模块，无线收发模块和计算机分析处理软件三大部分。结合光电容积法的特点，充分利用了TI公司OPT101等芯片的特性，设计高通、低通、工频陷波器对输出信号进行处理；使用集成了模数转换的CC2430单片机芯片完成检测心率、无线通信等功能；计算机分析软件通过USB接口与无线接收模块交换数据，接收脉搏波信号，可动态实时观察脉搏波数据，并进行分析处理，通过本文提出的基于小波变换的阈值去噪改进算法，快速有效地分离脉搏波信号和噪声；依靠智能分析算法辅助医生进行各波段特征提取、进行节律异常，血管弹性和血液粘性等快速诊断，迅速关注异常脉搏波，指导用户了解自身健康状况和帮助医护人员进行下一步医疗措施。关键词：光电脉搏波，传感器，无线传输，小波去噪，智能分析Abstract:Thephotoelectricpulsewavewirelessmeasurementsystemdevelopedinthisprojectincludespulsewavemeasurementmodule,wirelesstransceivermodules,andcomputeranalysissoftware.Combinedwiththecharacteristicsofphotoelectricvolumemethod,wehavemadefulluseoftheOPT101andotherchipsfromTIcompanydesigninghigh-pass,lowpass,powerfrequencynotchfiltertoprocesstheoutputsignals;Bytheuseoftheintegrationoftheanalog-digitalconversionoftheCC2430microcontrollerchip,theheartratedetection,wirelesscommunicationsandotherfunctionshavebeenaccomplished;computeranalysissoftwarecanexchangedatawiththewirelessreceivermoduleviaUSBinterfacetoreceivethepulsewavesignalandfulfilldynamicreal-timeobservationofpulsewavedataandanalyzedtreatment.UsingtheproposedthresholddenoisingAlgorithmbasedonwavelettransform,thepulsewavesignalandnoisecanbeseparatedquicklyandeffectively;theintelligenceanalysisalgorithmscanassistdoctorswithfeatureextraction,andrhythmabnormalities,bloodvesselelasticityandbloodviscosityandotherrapiddiagnosisandpayattentiontoabnormalpulsewavepromptly,guidingtheusertounderstandtheirownhealthstatusandhelpmedicalstaffmedicalmeasuresonthenextstep.KeyWords:Photoelectricpulsewave,sensors,wirelesstransmission,...
