毫米波雷达实现多人无接触心率呼吸率同步监测，准确率达97%以上。
Design and Measurements of mmWave FMCW Radar Based Non-Contact Multi-Patient Heart Rate and Breath Rate Monitoring System
- 基于调频连续波雷达，融合多算法最小二乘优化提升精度。
- 实测多人场景下心率、呼吸率准确率分别超97%和93%。
- 适合医院重症监护、养老院等需高效批量生命体征监控的场景。
毫米波雷达技术的发展使得真正无接触的心率（HR）和呼吸率（BR）测量成为可能，极大提升了患者监测的便捷性。此外，该技术还为同时检测多名患者的HR和BR提供了机会，对高效集体监测场景尤为重要。本文提出一种基于频率调制连续波（FMCW）毫米波雷达的真正无接触多患者心率与呼吸率监测系统。进一步提出一种新方法，通过结合多种处理方法并采用最小二乘解法，以提高测量精度、泛化能力并处理测量误差。所构建系统使用德州仪器（Texas Instruments）的FMCW雷达，实验结果基于多名受试者验证，显示呼吸率与心率测量准确率分别超过93%和97%。
原文摘要 · Abstract (English)
Recent developments in mmWave radar technologies have enabled the truly non-contact heart-rate (HR) and breath-rate (BR) measurement approaches, which provides a great ease in patient monitoring. Additionally, these technologies also provide opportunities to simultaneously detect HR and BR of multiple patients, which has become increasingly important for efficient mass monitoring scenarios. In this work, a frequency modulated continuous wave (FMCW) mmWave radar based truly non-contact multiple patient HR and BR monitoring system has been presented. Furthermore, a novel approach is also proposed, which combines multiple processing methods using a least squares solution to improve measurement accuracy, generalization, and handle measurement error. The proposed system has been developed using Texas Instruments' FMCW radar and experimental results with multiple subjects are also presented, which show >97% and >93% accuracy in the measured BR and HR values, respectively.
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