基于体震信号的心率检测装置的设计与实现

设计并实现了一种基于体震信号的心率检测装置。心脏泵血所引起的人体和与其接触物体的震动,经过压力传感器转换为电信号,通过放大模块等信号处理电路,再由串行接口输出到PC机中进行预处理,最后,利用一种改进的心率检测算法得到心率。同步采集一路心电信号作为时间基准测量心率,并检验装置的准确性,实验结果表明:两者测得的心率基本相同。

Design and realization of heart rate measuring device based on body vibration signals

A measuring device of heart rate based on the body vibration signals is designed and realized.The heart pumps out blood and causes the vibration of body and the objects contacted with the body.The pressure sensor transforms the vibration into electrical signals.The electrical signals are put into amplification module and other signal processing circuits.Then the outputs are transmitted to computer through serial interface.The data is per-processed and the heart rate is gained by a kind of improved heart rate detection arithmetic.The experiment results show that compared with a single channel simultaneously recording electrocardiogram(ECG),the heart rate concluded from this device is basically the same as the simultaneous recording ECG.