北京生物医学工程

非接触式体征监测及智能移动终端算法的实现

Non-contact detection of vital signs and algorithm implementation based on smart mobile terminal

作者：王曦泽胡巍王云峰张海英

单位：                      中国科学院微电子研究所（北京100029）        

关键词：生命体征；非接触式；生物雷达；智能移动终端

分类号：

出版年·卷·期（页码）：2014·33·3（258-263）

摘要：

目的为研究非接触式的，可实时监测人体呼吸、心跳等生命体征信息的便携式装置，本文设计并实现
了一套卡片式雷达体征监测系统。方法该系统根据多普勒雷达原理获得人体微动信息，利用蓝牙将经过预
处理的信号发送至智能移动终端，最终采用高效算法在Android平台上进行信号处理、生命体征信号提取与
实时显示。结果对受试者做两种状态下的监测，实验所得数据均值与常规方法测得的体征参数相比无显著
性差异（呼吸、心跳均值的准确度分别为93.75%和97.33%）。该系统能够获取呼吸、心跳信息，并准确进行
算法处理与显示。结论该便携式监测系统能够非接触式地监测单个人体目标的呼吸、心跳等生命体征信号
，为健康监护领域的心肺活动监测提供小型化、便携式的解决方案。

Objective In order to study on the portable unit that can non-contact monitor
vital signs such as respiration and heartbeat in real-time, a card-sized radar life detector
is designed and realized.Methods Acquiring micro movement signal based on Doppler radar
principles, the system transmits signals that have been preprocessed via Bluetooth to smart
mobile terminal.Efficient algorithm is adopted to process and extract the vital signs and
displays the results real-timely on Android platform.Results Monitoring the subject under two
conditions, there is no significant difference between the average data from the experiment
and the data acquired in common method (the accuracies of average respiration rate and
heartbeat rate are 93.75% and 97.33%, respectively).The experiment shows that the system can
acquire the information of heartbeat and respiration, and process the signals
accurately.Conclusions The system can monitor vital signs of a single target non-contactly,
which provides miniaturized and portable solution for cardiopulmonary monitoring in family
care.

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