没有合适的资源?快使用搜索试试~ 我知道了~
基于单片机的电子脉搏计的设计-毕业论文.doc
0 下载量 51 浏览量
2023-07-09
10:18:40
上传
评论
收藏 740KB DOC 举报
温馨提示
试读
53页
基于单片机的电子脉搏计的设计-毕业论文.doc
资源推荐
资源详情
资源评论
毕业设计论文
基于单片机的电子脉搏计的设计
摘 要
人们在日常生活或是医学上常常是通过测量脉搏跳动的力度和频率来检测
身体的健康状况,而普通的方法是用手按在人腕部的动脉上,根据脉搏的跳动进
行计数,这样不仅测量时间长而且精度不高,为了节省测量时间,一般不采用长
时间测量,而是几秒钟之内测出脉搏数。本文介绍一种基于 STC89C52 单片机的
电子脉搏计,通过测量腕部动脉的压力,把压力转变为电信号,送入单片机,可
以在 3 秒钟之内精确测量出每分钟脉搏数,测量结果用三位 LED 数码管显示,
并且脉搏波形通过串口送入 PC 机,实时显示脉搏波形。
脉搏计是最常用的医疗检查设备之一,实时准确的脉搏测量在日常生活、患
者监控、临床治疗及体育运动等方面都有着广泛的应用。脉搏测量包括瞬时脉搏
测量和平均脉搏测量。瞬时脉搏可以反映心率的快慢,同时能反映心率是否匀齐;
平均脉搏测量虽然只能反映心率的快慢,但记录方便。本文设计的电子脉搏计可
以把这两个参数在测量时都记录下来并且显示,瞬时测量结果通过 PC 机实时显
示,平均脉搏测量结果通过 LED 七段数码管显示。
关键词:STC89C52 单片机 脉搏 串口
Based on SCM electronic pulse plan design
Abstract
People in daily life or medicine is often measured by the pulse frequency and
strength to detect the health status of body by hand, and ordinary people by the
arteries in the wrist, according to a pulse count, thus not only beat measuring time
long and accuracy is not high, in order to save the measuring time, generally does not
use the long time measurement, but a few seconds pulse count. Measured This paper
introduces a STC89C52 MCU based on the electronic pulse plan, by measuring the
pressure, the wrist artery pressure into electrical signals, into a single-chip
microcomputer, can accurate measurement in three seconds per minute, a pulse with
measurement results number three LED digital display, and pulse tube through a
serial port into PCS, real-time display pulse waveform.
Pulse meter is one of the most commonly used in the medical examination
device, real-time accurate measurement of the pulse of daily life, patient monitoring,
clinical treatment and other aspects of sports have a wide range of applications. Pulse
measurements include transient pulse measurement and the average pulse
measurement. Instantaneous heart rate may reflect the speed of the pulse, while heart
rate can reflect whether the uniform homogeneous; average heart rate, pulse
measurement can only reflect the speed though, but the record of convenience. This
design of elec- tronic pulse meter to measure these two parameters are recorded and
displayed the time, instantaneous measurements in real time through the PC, shows
that the average pulse measurements by seven segment LED digital display.
Keywords: STC89C52; microcontroller; pulse; the serial interface
目 录
1 引言............................................................................................................................1
2 总体设计思路............................................................................................................1
2.1 方案设计与选取..............................................................................................1
2.1.1 总体流程图............................................................................................1
2.1.2 方案选择................................................................................................1
2.2 总体电路图......................................................................................................2
3 硬件电路结构模块....................................................................................................4
3.1 单片机的选取..................................................................................................4
3.1.1 STC89C52 引脚功能说明......................................................................4
3.1.2 振荡电路................................................................................................5
3.1.3 复位电路................................................................................................5
3.2 AD 转换电路模块 ............................................................................................6
3.2.1 ADC0809 引脚功能...............................................................................6
3.2.2 ADC0809 主要特性...............................................................................7
3.2.3 ADC0809 工作过程...............................................................................7
3.2.4 ADC0809 与单片机接口电路...............................................................8
3.2.5 ADC0809 与 PC 机连接 ........................................................................9
3.3 传感器的选取................................................................................................10
4 软件程序设计..........................................................................................................13
4.1 脉搏计数模块的设计....................................................................................13
4.1.1 脉搏计数程序方案的选取..................................................................13
4.1.2 脉搏计数代码设计..............................................................................14
4.2 LED 数码管显示模块设计 ............................................................................15
4.2.1 显示模块的选取..................................................................................15
4.2.2 LED 数码管与单片机的接口电路 ......................................................16
4.2.3 LED 数码管驱动程序的设计 ..............................................................17
4.3 AD 转换模块的设计 ......................................................................................18
4.4 串口发送程序设计........................................................................................19
4.5 上位机程序及界面设计................................................................................20
4.5.1 上位机程序的设计..............................................................................20
4.5.2 上位机界面的设计..............................................................................21
4.6 扩展血压计功能............................................................................................22
5 软硬件调试..............................................................................................................23
6 结论..........................................................................................................................27
谢辞..............................................................................................................................28
参考文献......................................................................................................................29
附录..............................................................................................................................30
外文资料 .......................................................................................................................................36
剩余52页未读,继续阅读
资源评论
yyyyyyhhh222
- 粉丝: 412
- 资源: 6万+
上传资源 快速赚钱
- 我的内容管理 展开
- 我的资源 快来上传第一个资源
- 我的收益 登录查看自己的收益
- 我的积分 登录查看自己的积分
- 我的C币 登录后查看C币余额
- 我的收藏
- 我的下载
- 下载帮助
安全验证
文档复制为VIP权益,开通VIP直接复制
信息提交成功