Indoor Event Detection with Eigenvector Spanning Signal Subspace for Home or Office Security
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概要
- 論文の詳細を見る
This paper proposes an indoor event detection system for homes and offices that is based on electric wave reception such as intrusion into home or office. The proposed system places antenna array on the receiver side and detects events such as intrusion using the eigenvector spanning signal subspace obtained by the antenna array. The eigenvector is based on not received signal strengths (RSS) but direction of arrival (DOA) of incident signals on the antenna array. Therefore, in a static state, the variance of the eigenvector over time is smaller than that of RSS. The eigenvector changes only when the indoor environment of interest changes intermittently and statically, or dynamically. The installation cost is low, because the detection range is wide owing to indoor reflections and diffraction of electric wave and only a pair of transmitter and receiver are used. Experimental results reveal that the proposed method can distinguish the state when no event occurs and that when an event occurs clearly. Since the proposed method has a low false detection rate, it offers higher detection rates than the systems based on RSS.
- (社)電子情報通信学会の論文
- 2009-07-01
著者
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OHTSUKI Tomoaki
Department of Information and Computor Science, Keio University
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TSUJI Hiroyuki
National Institute of Information and Communications Technology
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Ohtsuki Tomoaki
Department Of Computer And Information Science Keio University
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IKEDA Shohei
Graduate School of Science and Technology, Keio University
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Ikeda Shohei
Graduate School Of Science And Technology Keio University
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Tsuji Hiroyuki
National Agricultural Research Center For Hokkaido Region (narch)
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Ohtsuki Tomoaki
Department Of Computer And Information Keio University
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