文档介绍：江苏省首届大学生电子竞赛
基于MSP430单片机的心电监护仪
学校江苏科技大学
学院电子信息学院
小组成员
指导教师
二零一一年九月
摘要: 本课题主要进行基于MSP430超低功耗MCU的便携式心电监护仪及其系统的研究。根据人体心电信号的特征,设计性能优良的心电信号采集变送系统,选用超低功耗16位单片机MSP430F247对采集的心电信号进行记录、实时分析及处理。所制作的监护仪带有320*240液晶显示器和32KB的EEPROM,能显示所检测的心电波形,显示分析结果,存储和回放异常心电信号,配合按键提供友好的中文菜单,操作简便。该监护仪能长期连续可靠稳定工作,具有体积小、功耗低等特点,便于随身携带,使用方便。
关键词: MSP430 低功耗液晶显示实时分析 EPROM
Abstract: The author is engaged in the studying and manufacturing of portable ECG monitor and it’s system based on MSP430 ultra low power to the characteristic of human’s ECG signal,an excellent ECG signal sampling and transmitting system was more,The monitor uses ultra low power 16 bits single chip puter MSP430F247 to record,analyse,and process the ECG signal at real monitor uses 320*240 LCD and 32KB EPROM to show the ECG waves detected and the analyse result,store and replay the disnomal message. Cooperated with buttons,it provides amicable Chinese menu and makes operation simple and monitor can work stably and dependably for a long time,and with some excellencies such as mini volume, bulk memory,low power, is convenient to be taken with and used.
Keyword: MSP430 low power LCD Real time analyze EPROM
目录
1 心电的起源与心电图 4
心电信号的产生 4
心电信号的组成部分……………………………………………………………………...........4
2 信号提取与放大电路设计 5
总体设计 5
心电信号基本特征............................................................................................................5
检测过程中的干扰............................................................................................................6
单元电路设计 8
前置放大电路设计 8
滤波器设计 10
50HZ陷波器设计...............................................................................................................11
后级放大电路设计.............................................................................................................12
硬件总结........................................................................................