基于AT89S52单片机的脉搏测量器设计.docVIP

目录 关键词 3 第一章 引言 5 第二章 系统模块设计 5 2.1 框图设计 5 2.2 +5V电源电路设计 6 2.3 单片机AT89S52功能介绍 6 2.3.1 AT89S52主要功能列举如下 7 2.3.2 AT89S52各引脚功能介绍 7 2.3.3 AT89S52结构框图 9 2.4 单片机复位电路设计 10 2.5 单片机晶振电路设计 11 2.6 红外发射和接收电路的设计 12 2.6.1 红外通信原理 12 2.6.2 红外发射接收电路图 13 2.7 7SEG-MPX4-CC与单片机接口电路 14 2.8 半导体发光二极管工作原理、特性及应用 16 第三章 硬件设计 17 3.1 电路原理图 17 3.2 原件清单 18 第四章 软件设计 19 4.1 程序流程图 19 4.2 程序清单 20 4.3系统Proteus仿真图 23 4.3.1 显示初始页面 23 4.3.2 一分钟脉搏跳动显示 23 结论 24 致谢 25 参考文献 25 基于AT89S52单片机的脉搏测量器设计 摘要：脉搏指动脉的搏动。正常成年人的脉搏大概在60—100次每分，而老年人的脉搏偏低，女性和儿童的脉搏则偏高。正常人脉律规则，有窦性心律不齐者的脉律可随呼吸改变。吸气时增快;呼气时减慢。心脏搏动所引起的压力变化使主动脉管壁发生振动，沿着动脉管壁向外周传递，即成脉搏。通常所称的脉搏系指在手腕桡侧扪到的脉搏。脉搏反映血液循环系统的功能状态。通过检查脉搏的速率、节律、紧张度、强弱、波形和动脉壁的情况，可以判断病变部位及相对应的病征。所以人们在心慌或发烧时，总要数一数自己的脉搏，而在家庭急救中，准确测量脉搏对普通人来说常常不易做到。本课题中基于单片机AT89S52设计的脉搏测量器性能可靠、测量准确、操作简单，具有一定的实用性。 关键词：AT89S52、单片机、脉搏测量器 Abstract:Pulse finger artery pulse. Normal adult pulse in about 60- 100 times per minute, while the elderly pulse is low, women and children of the pulse is high. Normal human rule, a sinus arrhythmia of the pulse rate with changes in respiration. Inhale exhale down faster. Cardiac pulsation pressure caused by changes in the aortic wall to vibrate, along the arterial wall periphery transmission, namely into pulse. Often referred to as the pulse refers to the radial side of the children of Ammon to pulse. Pulse reflect the blood circulatory system function state. By checking the pulse rate, rhythm, stress, strength, waveform and arterial wall, can determine the site of lesion and the corresponding symptoms. So people are nervous or have a fever, always count your pulse, and in a family emergency, accurate measurement of pulse for ordinary people often not easy to do. In this paper based on the AT89S52 MCU design of pulse measurement device has reliable performance, accurate measurement, simple operation, has a certain practicality. Key words: SCM, AT89S52, pulse measurement device 引言