游泳脚环心率监测系统的设计与优化  

Design and Optimization of Heart Rate Monitoring System for Swimming Foot Ring

作　　者：何王凤 张馨月 林俊杰 HE Wang-feng;ZHANG Xin-yue;LIN Jun-jie(Electronic Information and Automation School,Tianjin University of Science and Technology,Tianjin 300222)

机构地区：[1]天津科技大学电子信息与自动化学院,天津300222

出　　处：《新型工业化》2020年第2期153-156,共4页The Journal of New Industrialization

摘　　要：针对游泳脚环心率监测工作不稳定,受高频及50 Hz工频干扰的问题,该文结合ST188反射式红外光电传感器获取脉搏信号,设计信号调理电路,实现脉搏信号的放大及滤波功能,经捕获高质量脉搏信号的峰值计算心率,达成准确监测心率的目的。经过将人工计数与心率监测系统进行多次心率测试的结果对比,该系统的实验误差均小于2%,由此可以说明,该监测系统设计合理、抗干扰性强、测量精度准。In view of unstable heart rate monitoring of swimming foot ring,being interfered by high frequency and 50 Hz power frequency,the paper obtains pulse signal combined with ST188 reflective infrared photoelectric sensor,designs signal conditioning circuit,realizes function of pulse signal amplification and filtering,calculates heart rate by capturing peak value of high-quality pulse signal,and achieves purpose of accurate heart rate monitoring.After comparing results of artificial counting and heart rate monitoring system,experimental errors of the system are less than 2%,which shows that monitoring system has reasonable design,strong anti-interference and accurate measurement.

关 键 词：心率监测 ST188光电传感器 51单片机 差分放大器 基线漂移 

分 类 号：TP274[自动化与计算机技术—检测技术与自动化装置]