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通过LiDAR对基于EDA的激发进行车载非接触估计
Jonas Brandstetter1,2, Eva-Maria Knoch1, Frank Gauterin1
1Institute for Vehicle Systems Engineering, Faculty of Mechanical Engineering, Karlsruhe Institute of Technology (KIT), 76131 Karlsruhe, Germany.
Sensors (Basel, Switzerland)
|December 11, 2025
概括
这项研究表明,光检测和测距 (LiDAR) 可以远程估计电皮活动 (EDA) 用于驾驶员监控. 这种非接触式方法通过评估唤醒水平,有望提高车辆安全系统.
科学领域:
- 生物医学工程 生物医学工程
- 人与计算机的交互
- 传感器技术 传感器技术
背景情况:
- 驾驶员监控系统越来越多地使用生理信号来确保安全.
- 电皮活动 (EDA) 是一种关键的兴奋生物标志物,但需要与皮肤接触.
- 目前的方法限制了EDA的车载适用性.
研究的目的:
- 使用光检测和测距 (LiDAR) 探索非接触式皮电活动 (EDA) 估计.
- 评估LiDAR作为驾驶员监控的新型传感模式的可行性.
- 评估用于远程EDA估计的机器学习模型.
主要方法:
- 从额头和手指的EDA同时记录LiDAR反射强度.
- 使用基于特征 (随机森林,额外树木) 和基于序列 (CNN,LSTM,TCN) 的机器学习模型.
- 执行分类和回归任务来分析来自LiDAR的兴奋数据.
主要成果:
- 激光雷达信号成功捕获了与兴奋相关的变化.
- 时间卷积网络 (TCN) 实现了平均绝对误差14.6和与基本真相EDA的相关性 (r=0.85).
- 跨学科的概括提出了挑战,表明了未来改进的领域.
结论:
- 这项研究为使用LiDAR进行非接触式远程EDA估计提供了第一个概念验证.
- 激光雷达解决了驾驶员监控系统中皮肤接触传感器的局限性.
- 未来的工作应该专注于更大的数据集和现实世界的驾驶验证,以便实际部署.
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