基于AT89S52和红外传感器的心率计设计

Design of Heart Rate Meter Based on AT89S52 and Infrared Sensor

设计一款可以用于普通家庭的小型心率计,不仅能满足测量要求,而且符合成本较低的需求。本文采用AT89S52单片机作为核心控制单元,设计了一款便携式心率计,采用红外传感器,运用软件和硬件双重滤波,具有低成本、精确度高,实现了对人体心率信号的准确测量。当出现异常心率时,系统将发出警报,有助于向使用者示警。系统以数字方式显示测量结果,测量精确到2次/分,能进行实时检测,且体积较小,容易携带,能够满足日常家庭的需求。

This paper designs a mini heart rate meter that can be used in ordinary families,which not only meet the measurement requirements,but also the needs of low cost.It uses AT89S52 as the core control unit to design a portable heart rate meter with the using of infrared sensor and the using of software and hardware dual filtering.It has the advantages of low cost and high accuracy,and can achieve the accurate measurement of human heart rate signal.When the abnormal heart rate occurs,the system will send out an alarm,which is helpful to alert the user.The system displays the measurement results in digital way,measurement accuracy is2 times/min,it carries out real-time detection,which can meet the needs of daily families with small size and easy carrying.