基于MIMO雷达的关键生命体征监测仪
Michael Gottinger1, Nicola Notari2, Samuel Dutler2
1Institute for Electronics, Sensorics and Actorics (ESA), Ostschweizer Fachhochschule, 9470 Buchs, Switzerland.
这项研究引入了一种使用多输入多输出 (MIMO) 技术的新型雷达成像系统,用于无接触式生命体征监测. 该系统准确估计睡眠姿势和重要参数,克服了连续波 (CW) 雷达的局限性.
科学领域:
- 生物医学工程 生物医学工程
- 信号处理 信号处理
- 人工智能的人工智能
背景情况:
- 连续波 (CW) 雷达系统可以无接触监测生命体征,但面临信号取消和功能有限等挑战.
- 现有的CW雷达局限性阻碍了对呼吸模式,运动和心率的精确,长期监测.
研究的目的:
- 开发和评估一个复杂的多输入多输出 (MIMO) 雷达系统,以加强对生命体征和睡眠状态的非接触式监测.
- 为了克服传统单通道CW雷达系统固有的信号取消和功能限制.
主要方法:
- 使用MIMO雷达系统捕获雷达图像以估计睡眠姿势和重要参数.
- 使用分叉卷积神经网络,使用飞行时间深度摄像头数据进行训练,用于处理雷达数据和分类睡眠姿势.
- 测量了包括呼吸率,胸部/腹部运动同步性和四肢运动在内的关键生命参数.
主要成果:
- 获得了Xiphoid和肚定位的平均绝对误差 (MAE) 低于5厘米.
- 在姿势分类 (>90%) 和肢体运动检测 (>98.6%) 中具有很高的准确性.
- 获得了每分钟0.06到0.8循环之间的呼吸速率的MAE.
结论:
- 开发的MIMO雷达系统为非接触式生命信号监测提供了强大的解决方案,改善了CW雷达的局限性.
- 该系统准确估计睡眠姿势和关键生命指标,显示了睡眠研究和医疗保健应用的巨大潜力.
- 人工智能与雷达成像的整合为非侵入性生理监测提供了一个强大的工具.
更多相关视频
14:28Non-Invasive Monitoring of Microvascular Oxygenation and Reactive Hyperemia using Hybrid, Near-Infrared Diffuse Optical Spectroscopy for Critical Care
Published on: May 10, 2024
07:51Standardized Hemorrhagic Shock Induction Guided by Cerebral Oximetry and Extended Hemodynamic Monitoring in Pigs
Published on: May 21, 2019
相关概念视频
Guidelines For Measuring Vital Signs
Before taking a patient's vital signs, a nurse would consider and assess the patient's comfort level and ensure appropriate equipment is available.
Pulse rhythm
Conversely, an irregular pulse pattern is termed dysrhythmia, stemming from disruptions in cardiac...
Assessing Blood pressure using a doppler ultrasound
Pre-Procedural Guidelines for Doppler Ultrasound Blood Pressure Assessment:
Preparation of Equipment:
Equipments Used To Measure Blood Pressure
This invasive approach involves cannulating a peripheral artery. During each cardiac contraction, pressure generates mechanical motion within the catheter, transmitted through rigid, fluid-filled tubing to a transducer. This transducer converts mechanical motion into electrical signals displayed as waveforms on a monitor. An automatic flushing system prevents blood backflow. Due to the potential risk of unexpected arterial blood loss, this method is primarily used in intensive...
Pulse Oximetry
Purpose
Average SpO2 values are greater than 95%. If the readings fall below 90%, it indicates that...
Introduction to Vital Signs
Vital signs help healthcare professionals assess an individual's well-being and detect any functional changes...
