智能电子血压计_new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。 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 幅度系数法