基于动脉张力法和STM32L的24h动态血压计设计  

24h Ambulatory Blood Pressure Monitoring System Based on Arterial Tension Method and STM32L

作　　者：郭友达 雷恒波 徐雅洁[2] 邢晓曼[2] 康明才[1] 孙明山[2] 

机构地区：[1]南京理工大学电子工程与光电技术学院,南京210094 [2]中国科学院苏州生物医学工程技术研究所医学影像室

出　　处：《单片机与嵌入式系统应用》2016年第9期41-45,共5页Microcontrollers & Embedded Systems

摘　　要：本文介绍了一种基于高灵敏度压力传感器和STM32L芯片的低功耗、高性能的24h连续动态血压监测系统,阐述了系统的工作原理、流程及其软硬件设计。系统通过压力传感器对腕部脉搏波进行实时监测,利用动脉张力法预估血压值,实现了24h连续动态血压监测的效果。该系统具有自动进入低功耗状态、5min自动唤醒、按键中断唤醒、血压异常报警等功能,克服了传统血压计无法进行24h连续动态血压监测、受偶然因素影响大、实时性差等缺点。A high-performance 24h continuous ambulatory blood pressure monitoring system is introduced which based on a high sensitiv- ity pressure sensor and STM32L. The work principle, the flow and the design of hardware and software are described. The pressure sen- sor is used to monitor the wrist pulse wave,and estimates the blood pressure using the arterial tension method,so the 24h continuous am- bulatory blood pressure monitoring is achieved. At the same time,the system has the functions of automatically entering the low-power consumption state,Smin auto wake-up, push button interrupt wake-up, and abnormal blood pressure alarming. It overcomes the short- comings of the conventional blood pressure monitors, such as unable to monitor blood pressure 24h continuously,easily influenced by ac- cidental factor, and poor real-time performance.

关 键 词：STM32L 24h连续动态血压监测 低功耗 压力传感器 

分 类 号：TH776[机械工程—仪器科学与技术]