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便携式人体心电检测仪的设计
摘要：心血管疾病是威胁人类生命的主要疾病之一，而心电信号则是评价心脏功能的主要依据。近几年，随着人们生活水平的日益提高，不合理的生活习惯使得心血管类疾病的发病率逐年增高，人们在呼吁健康的同时对自身的身体状况也给予了非同寻常的关注。本论文设计了一款便携式心电检测仪器，能应用于家庭医疗保健，对于心血管疾病的及早预防和人们的身体健康提供有效的帮助。该心电检测仪主要由前端信号采集电路、信号放大电路、抗干扰滤波电路、软件模数转换电路及数据存储电路等组成。其功能是将弱小的心电信号经过放大滤波，得到具有诊断价值的心电信号，然后由模数转换电路转换为数字信号，最后由MSP430单片机的外部存储器存储数据。
关键词：心电检测；信号采集；ECG滤波；MSP430单片机
A Case Study of Portable ECG Motoring Device
Abstract：Cardiovascular disease is one of the most important diseases endangering human’s life. ECG (Electrocardiogram) is an important diagnostic basis. With our living standard gradually improving, the rate of cardiovascular disease has been increased year after year while people have the unhealthy habits and customs. While appealing for health, people are paying more attention to their own physical conditions. This paper designs a portable ECG motoring device which can be used in family medicine. It can availably help people to prevent cardiovascular disease. The device is consisted of ECG signal data acquisition, signal amplification circuit, anti-jamming filter circuit, AD converter circuit and information storage circuit. Its function is to adjust the lower signal to acquire the valuable analog ECG signal and convert it to digital signal, store the ECG information by MSP430 SCM (Single Chip Micyoco) external memory finally.
Key words: ECG Sensing, Signal Acquisition, ECG Filter, MSP430SCM
