基于Matlab和MSP430的心音信号采集和处理系统设计

System Design for Collecting and Processing of Heart Sounds Signal Based on Matlab and MSP430

本文提出了一种基于Matlab和16位低功耗单片机MSP430的心音信号采集系统的设计方法。给出了Matlab和单片机通信时利用其分配串口缓冲区来解决Matlab处理需大量数据的技术瓶颈,从而实现了心音信号的时域及频域图形的动态显示,数字滤波,存储读取以及显示区域的滑条控制的具体方法。

A measure of system design for collecting and processing of heart sounds signal based on Matlab and 16 bit low consumption MPU was introduced in this paper. This paper also provided a method of resolving the bottleneck that Matlab needs a lot of data to process, which is allocated serial port buffer by Matlab when it was communicating with the MPU. The method also realized the dynamic show of datas on no matter time-domain or frequency-domain, digital filtering, save-load, and some specific approaches to control the slider bar for the show zone.