先进的毫米波雷达系统用于实时多人追踪和落检测.
Zichao Shen1, Jose Nunez-Yanez2, Naim Dahnoun1
1School of Electrical, Electronic and Mechanical Engineering, University of Bristol, Bristol BS8 1UB, UK.
Sensors (Basel, Switzerland)
|June 19, 2024
概括
这项研究引入了一种使用毫米波 (MMW) 雷达的新型室内人类跟踪和摔倒检测系统. MMW雷达系统提供了一个保护隐私的,非侵入性的解决方案,用于监控多个个体和高精度检测跌倒.
科学领域:
- 传感器技术 传感器技术
- 人与计算机的交互
- 人工智能的人工智能
背景情况:
- 现有的人类跟踪和摔倒检测方法经常面临诸如隐私问题 (摄像头),移动限制 (可穿戴设备) 和环境依赖 (照明) 等限制.
- 毫米波 (MMW) 雷达技术由于其非侵入性,独立于照明条件和缺乏隐私问题而提出了一个有前途的替代方案.
研究的目的:
- 开发和评估一个室内系统,用于使用MMW雷达同时进行多人跟踪和落检测.
- 解决与雷达干扰,覆盖和实时信号集成相关的挑战,以实现非侵入性人类监控.
主要方法:
- 使用德克萨斯仪器三台毫米波雷达进行数据采集.
- 开发了一个实时框架,集成雷达信号,用于对人类位置和身体状态进行非侵入性跟踪.
- 实现了先进的算法,包括动态DBSCAN集群,用于目标跟踪的概率矩阵,用于落检测的状态预测和降噪反循环.
主要成果:
- 在追踪人类方面实现了高精度:98.9%的目标为一个目标,96.5%的目标为两个目标,94.0%的目标为三个目标.
- 展示了96.3%的跌倒检测准确率,有效地区分了跌倒与其他人类活动.
- 评估使用超过300分钟的数据 (约. 36万) 的时间.
结论:
- 基于雷达的MMW系统为室内环境中的多人跟踪和落检测提供了有效和准确的解决方案.
- 开发的系统克服了传统方法的局限性,为人类监控提供了保护隐私和强大的替代方案.
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