一种心率检测仪的低功耗与抗静电设计  

Design of a Low-Power and Antistatic Heart Rate Monitor

作　　者：秦丽平 刘梦星[2,3] 连仁菊 江锋 江河 叶树明 

机构地区：[1]浙江省医疗器械检验院,浙江杭州310018 [2]浙江大学生物医学工程与仪器科学学院,浙江杭州310027 [3]浙江省心脑血管检测技术与药效评价重点实验室,浙江杭州310027 [4]浙江省龙泉市剑池街道社区卫生服务中心,浙江龙泉323700

出　　处：《中国医疗设备》2018年第2期56-59,共4页China Medical Devices

基　　金：浙江省科学技术厅项目(2016F30G5420052)

摘　　要：目的研究并开发一种无创且连续的心率检测仪产品,以用于心血管病患者的日常监护。方法利用铺设在座椅上的压电薄膜传感器来提取人体腿部血管的搏动信号,从而推算心率值。采用STM32F411作为核心运算和控制单元实现低功耗程序设计,运用瞬态保护器件与嵌入式软件监控单元来全方位抑制静电放电所造成的干扰。结果在3种工作模式下,设备具有出色的能耗表现,且静电抗扰度满足YY 0505-2012标准的要求。结论该检测仪使用便捷,功耗超低,安全稳定,为家用心脏监护提供了一个实际可靠的解决方案。Objective To develop a noninvasive and continuous heart rate monitoring product, so as to monitor patients with cardiovascular diseases in their daily life. Methods Under the human thighs, the vascular pulsations were acquired to calculate the heart rate value by the piezoelectric film sensor which was placed on an office chair. As a core of operation and control, STM32F411 was used to achieve low power programming. Then, transient protection devices and embedded software monitoring module were designed to resist interference causing by the electrostatic discharge. Results In the three operation modes, the device has excellent performance of energy consumption and the ESD immunity meets the YY 0505-2012 standard requirements. Conclusion This monitor is easy to use, as well as safe, stable and energy-friendly. It provides a reliable and practical solution for cardiac monitoring at home.

关 键 词：心率监测 心冲击描记图 低功耗 静电抗扰度 可靠性设计 

分 类 号：TH776[机械工程—仪器科学与技术]