计算机科学
生命体征
利用
软件部署
心跳
实时计算
频道(广播)
符号(数学)
信道状态信息
持续监测
计算机安全
无线
电信
工程类
操作系统
医学
数学分析
外科
数学
运营管理
作者
Xuyu Wang,Chao Yang,Shiwen Mao
出处
期刊:ACM transactions on computing for healthcare
[Association for Computing Machinery]
日期:2020-05-30
卷期号:1 (3): 1-27
被引量:64
摘要
Vital signs, such as respiration and heartbeat, are useful for health monitoring because such signals provide important clues of medical conditions. Effective solutions are needed to provide contact-free, easy deployment, low-cost, and long-term vital sign monitoring. In this article, we present PhaseBeat to exploit channel state information, in particular, phase difference data to monitor breathing and heart rates with commodity WiFi devices. We provide a rigorous analysis of channel state information phase difference with respect to its stability and periodicity. Based on the analysis, we design and implement the PhaseBeat system with off-the-shelf WiFi devices and conduct an extensive experimental study to validate its performance. Our experimental results demonstrate the superior performance of PhaseBeat over existing approaches in various indoor environments.
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