摘要
血压和脉率是人体的重要生理参数,准确地测量人体血压和脉率对人体的健康起着非常重要的作用;文中介绍了以C8051F020为核心的无创血压测量系统,从硬件和软件两个方面详细说明了设计方法;血压信号通过前端放大电路和滤波电路后,经过单片机采集后运算得到血压值和脉率值,最后系统通过LCD动态实时显示测量的结果,同时给出了在遇到异常情况时处理的方法,保证了无创血压测量的安全性;经过实验表明,使用方便灵活,具有较高的临床应用价值。
The blood pressure and pulse rate are two important physiology parameter of human body, accurate measurement of the blood pressure and pulse rare are playing viral role to the human body health. A measuring system of blood pressure of human body based on C8051F020 is introduced in the paper, and hardware and software design methods are described in detail. Blood pressure signal first gets through the preamplifier and filter circuit, then is computed by the C8051F020 MCU, blood pressure and pulse rate values will be obtained, system display blood pressure and pulse rate by LCD, can be used conveniently and has high clinic value.
出处
《计算机测量与控制》
CSCD
2008年第9期1227-1228,1232,共3页
Computer Measurement &Control
基金
国家自然科学基金资助项目(60674044)
关键词
单片机
无创血压
脉率
示波法
MCU
non invasive blood pressure
pulse rate
oscillometric method
