基于Measurement Studio的心音信号采集与分析系统

设计一款便携式心音采集分析设备,并能定位出第一心音(S1)与第二心音(S2).以Measurement Studio作为开发平台,实现对先天性心脏病人心音信号的采集、存储和分析工作.采用双阈值分段定位法来定位S1与S2.系统较好的完成对病人心音信号的采集、存储、回显和播放功能.对心音杂音滤波效果明显,滤波后的包络能够较好定位S1与S2.通过该系统完成先心病的普查工作,比起专家亲自去边远山区现场听诊,更方便快捷,为未来心音听诊设备的开发奠定基础.

PCG acquisition and analysis system based on measurement studio

To design a portable heart sound collection and analysis device,and can locate the first heart sound (S1) and the second heart sound (S2).Measurement Studio was used as the development platform to realize the acquisition,storage and analysis of heart sounds of congenital heart patients.In this paper,the double threshold segmentation method is used to locate S1 and S2.The system better to complete the patient heart sound signal acquisition,storage,echo and playback function.The effect of sound filtering is obvious,and the envelope after filtering can locate S1 and S2 well.Through the system to complete the census of congenital heart disease,compared to the experts personally go to the remote mountain area on site auscultation,more convenient and quick.For the future development of heart sound auscultation equipment to lay the foundation.