摘要：物联网家庭健康监护系统面向于家庭、社区等场合，在没有专业医护人员在场的情况下，用户能自助的完成整个健康监护生理参数测量过程。本论文主要基于AT89C51单片机设计了一个脉搏测量器。该测量器以AT89C51单片机为中心，用红外发光二极管和光敏二极管作为传感器，并利用单片机系统内部的定时器来计算时间，光敏二极管感应产生脉冲，单片机通过接收脉冲并累加得到脉搏跳动次数，测量时间由定时器的功能实现。系统运行中能显示脉搏次数和时间，系统停止运行时，能够显示总的脉搏次数和时间。56890

该系统具有低功耗、低成本、方便携带、易于扩展等特点，对日常生活的改善有很多好处，具有一定的实用价值。

毕业论文关键字：物联网，家庭健康监护，单片机AT80C51，脉搏测量

Abstract: Home health monitor system based on internet of things, which faces to the needs of family, community and so on, can implement the whole health care measurement of the physiological parameters independently without the professional medical personnel. A pulse meter based on MCU AT89C51 is designed in this thesis. The AT89C51 is used as the center, with infrared light-emitting diode and photodiode as the sensor. The internal timer of the single-chip microcomputer is adopted to calculate the time as well. The photosensitive diode produces pulse sensor, while the microcontroller gets pulses and accumulates the number, with the time calculated by the timer.  As the system is running, it can display the pulse frequency and the time, or it will show us the total pulse number and the time.

This system has the advantages of low power consumption, low cost and convenient to carry, easy to expand etc. It will benefit the improvement of the daily life, and has a some practical value.

Keywords: the Internet of Things, home health monitor, single chip AT80C51, pulse measurement.

目   录

1  绪论 4

2  物联网技术 4

2.1  物联网技术简要介绍 4

2.2  物联网医疗监护技术架构 5

3  物联网监护系统设计方案 6

3.1  无线传感器节点 6

3.2  可移动智能终端 7

3.3  网络数据库与Web服务器 7

3.4  可移动智能终端设计 7

4  脉搏测量器总体方案 8

4.1  脉搏测量系统工作原理 8

4.2  脉搏测量系统总方案图 8

5  脉搏测量系统硬件设计 9

5.1  主控芯片MCS-51介绍 9

5.2  红外发光二极管介绍 10

5.3  光敏二极管介绍 11

5.4  脉搏检测电路工作原理 11

5.5  脉搏信号采集电路 12

5.6  前级放大滤波电路 13

5.7  整形电路 14

5.8  脉搏测量接口电路 15

6  脉搏测量系统仿真电路 15

结 论 17

参考文献