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首页> 美国卫生研究院文献>Sensors (Basel Switzerland) >Indoor Motion Detection Using Wi-Fi Channel State Information in Flat Floor Environments Versus in Staircase Environments
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Indoor Motion Detection Using Wi-Fi Channel State Information in Flat Floor Environments Versus in Staircase Environments

机译：在平坦地板环境中和楼梯环境中使用Wi-Fi通道状态信息进行室内运动检测

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摘要

Recently, Wi-Fi channel state information (CSI) motion detection systems have been widely researched for applications in human health care and security in flat floor environments. However, these systems disregard the indoor context, which is often complex and consists of unique features, such as staircases. Motion detection on a staircase is also meaningful and important for various applications, such as fall detection and intruder detection. In this paper, we present the difference in CSI motion detection in flat floor and staircase environments through analysing the radio propagation model and experiments in real settings. For comparison in the two environments, an indoor CSI motion detection system is proposed with several novel methods including correlation-based fusion, moving variance segmentation (MVS), Doppler spread spectrum to improve the system performance, and a correlation check to reduce the implementation cost. Compared with existing systems, our system is validated to have a better performance in both flat floor and staircase environments, and further utilized to verify the superior CSI motion detection performance in staircase environments versus flat floor environments.
机译：最近，已经广泛研究了Wi-Fi信道状态信息（CSI）运动检测系统，以用于平板环境中的人类医疗保健和安全性。但是，这些系统无视室内环境，室内环境通常很复杂，并且由独特的功能（例如楼梯）组成。楼梯上的运动检测对于各种应用（例如跌倒检测和入侵者检测）也很有意义，也很重要。在本文中，我们通过分析无线电传播模型和实际环境中的实验，介绍了在平坦地板和楼梯环境中CSI运动检测的差异。为了在两种环境下进行比较，提出了一种室内CSI运动检测系统，该系统采用几种新颖的方法，包括基于相关的融合，移动方差分段（MVS），多普勒扩展频谱以提高系统性能以及进行相关检查以降低实现成本。 。与现有系统相比，我们的系统经过验证可在平坦地板和楼梯环境中均具有更好的性能，并且可进一步用于验证与楼梯地板环境相比在楼梯环境中优越的CSI运动检测性能。

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