智能电子血压计重点解读.doc

电子血压计的设计 摘要：随着当前社会物质生活迅速发展，人们不良的饮食习惯和生活习惯不断滋生，各种疾病越来越多，最常见的就是高血压了，血压测量的准确与否直接关系到人们的健康，，设计出基于此方法的电子血压计。，。AT89C51作为其核心控制器，用BP01型压力传感器将，并送入A/D转换模块将信号转换为数字信号后在单片机的控制下进行显示、存储、传输等处理。 关键词：AT89C51；示波法；数模转换The design?of electronic sphygmomanometer Abstract:With?the?rapid?development?of?social?material?life,?people?with?bad?eating?habits?and?living?habits?are?growing?more?and?more,?all?kinds?of?diseases,?the?most?common?is?hypertension,?blood?pressure?measurement?is?accurate?or?not?directly?related?to?peoples?health,?modern?people?suffer?from?low?age?trend?in?cardiovascular?disease,?so?keep?an?eye?on?our?blood?pressure?on?us?only?harmless.?Microcontroller?with?its?excellent?performance,?widely?used,?penetrated?into?various?fields,?has?become?a?relativey mature ?mature?technology,?in medicine is well applied.The?design?on?the?basis?of?the?foundation?of?foreign?existing?products?or?design?ideas,?to?show?the?wave?as?a?method?of?blood?pressure?measurement,?the?design?of?the?electronic?blood?pressure?meter?based?on?this?method.?The?electronic?sphygmomanometer?can?automatically?perform?simple?measurement?of?blood?pressure,?and?beyond?the?normal?blood?pressure?in?patients,?automatic?warning.?This?design?uses?AT89C51??as?the?core?of?electronic?sphygmomanometer,?using?BP01?pressure?sensor?to?convert?the?pressure?of?the?blood?vessel?wall?into?electrical?signals,?and?sent?to?the?A/D?conversion?module,?the?electrical?signal?is?converted?to?digital?signal?under?the?control?of?MCU?display,?storage,?transmission?and?processing. Key words:AT89C51;Oscillometric metho;A/D Convert 目录 第一章 绪论 1 1.1 背景 1 1.2 血压的几种测量方法 1 1.2.1.人工柯氏音法 1 1.2.2.示波法 2 1.3 电子血压计设计的任务 3 第二章 总体方案 4 2.1 血压测量原理 4 2.2 系统总体方案概述 5 2.2.1 系统组成部分 5 2.2.2 系统组成部分框图 6 2.3 电子血压计的技术指标 7 第三章 系统硬件设计 8 3.1 压力传感器及血压信号的采集 8 3.2 信号预处理电路设计 9 3.2.1 前置放大器 9 3.2.2 袖带压力信号处理 12 3.2.3 脉搏波信号的处理 14 3.3 数模转换电路设计 16 3.3.1 ADC0809的基本用法 16 3.3.2 ADC0809与单片机的连接 17 3.4 数据显示 18 3.5 气泵控制和血压报警电路的设计 19 第四章 系统软件设计 21 4.1 收缩压和舒张压的确定算法 21 4.1.1 突变法 21 4.1.2 幅