家庭医疗监测系统解析

摘要

随着社会的进步和科技的发展，全球的环境也发生了巨大的变化，各种病毒随着各类污染源的出现而产生，对人们的健康造成了相当大的危害。尤其是近几年流感病毒的蔓延和心脑血管疾病的高发病率受到了全球的高度关注。计算机逐步进入家庭，为研制具有分析、处理和存储能力的家庭医疗监护系统提供了稳固的基础。为了提高预防和监测疾病的水平，对常见病、慢性病进行实时监测，本课题设计了一种家庭医疗护理和监测系统，可以在家庭里面，方便、快捷地实现对体温信号、心电信号和脉搏信号的实时监测，并且能对采集的信号进行相应的分析和存储。

系统包括传感器模块、放大电路模块、DAQ数据采集模块和PC机软件编程几个部分。分别通过温度传感器和心电传感器获取到体温信号和心电信号，经过模拟电路处理，再把经处理的信号送到数据采集卡输进计算机，然后利用Labview编程，对体温信号进行标度变换、从心电信号中提取脉搏信号和实现各种信号时域和频域的分析和数据的存储，最后把处理和分析的结果通过人机界面显示出来。

关键词：家庭医疗监测，虚拟仪器，数据采集接口，ECG，体温

Abstract

With the progress of the society and the development of technology, the global environment has changed greatly. Various virus come into being with lots of pollution, which make great damage to people's health. Especially, in recent years, people pay morn attention to the spread of influenza viruses and the high incidence of cardial-cerebral disease. Computer gradually entering the family for a family medical care system whicn can analysize, process and storage data provides a solid foundation. In order to improve the level of disease prevention and real-timely monitoring of common disease and chronic disease,.This subject designs a family medical care monitoring system, which be installed family can monitor the temperature signal, ECG signals and pulse signal conveniently and quickly.

System including sensor module, amplifying circuit module, DAQ data acquisition module , software module and PC module. The temperature signal and electrode signal which are collected through the temperature sensor and ECG electrode clip acquisition, then amplified by circuit amplifier, and then put the signals into the data acquisition card, and using the Labview, calibrating the temperature signal ,expracping pulse signal from ECG signal and processing, time domain and frequency domain, finally displaying the results of the processing and analysis by human-machine interface display.to us[1].

Key words：Homecare monitoring , Virtual instrument , Data acquisition interface , ECG, Temperature

目录

1 绪论 (1)

1.1 题目背景 (1)

1.2 国内外研究状况 (2)

1.3 研究内容和目的 (3)

2 系统分析与整体结构 (4)

2.1 体温信号的测量 (4)

2.2 心电信号的测量 (4)

2.2.1心电信号产生的机理 (4)

2.2.2 心电信号的特点 (5)

2.2.3 心电传感器与心电导联 (5)

2.3 脉搏信号的测量 (6)

2.4 系统整体结构 (7)

3 系统硬件设计 (8)

3.1 体温信号测量模块 (8)

3.1.1 温度传感器 (8)

3.1.2 模拟放大电路 (9)

3.2 心电信号测量模块 (11)

3.2.1 心电传感器 (11)

3.2.2 模拟放大和滤波电路 (12)

3.3数据采集卡模块 (27)

4系统软件设计 (31)

4.1软件平台的介绍 (31)

4.2软件实现的功能 (31)

4.3软件的设计 (32)

4.3.1信号的采集 (32)

4.3.2脉搏信号的提取 (34)

4.3.3信号的数值显示和波形显示 (34)