電気学会論文誌C(電子・情報・システム部門誌)
Online ISSN : 1348-8155
Print ISSN : 0385-4221
ISSN-L : 0385-4221
<情報通信工学>
無線LANを用いた医療機器管理用RFIDの位置推定
松月 正樹竹田 馨細川 裕貴野呂 雄一竹尾 隆
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2013 年 133 巻 12 号 p. 2143-2148

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In this study, the positioning accuracy of RFIDs used for managing medical instruments in a hospital by means of a wireless LAN is experimentally investigated. After a relationship between the positioning error and building materials or structures is examined, some methods of reducing the error, including a method utilizing a threshold setting technique, the Bayes' theorem and their combination are discussed, especially for electromagnetically degraded or shielded circumstances such as around a CT room. It has been made clear that the threshold setting and the Bayes' theorem methods are effective in reducing the positioning errors and one can obtain better results when both methods are simultaneously employed with the error being about 1 to 2 m.
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