A received signal strength RFID-based indoor location system

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• 作者：Yuri Á ; lvarez L&oacute ; pez ; ^{yalopez@tsc.uniovi.es}Author Vitae ; Marí ; a Elena de Cos G&oacute ; mez ^{medecos@tsc.uniovi.es}Author Vitae ; Fernando Las-Heras André ; s ^{flasheras@tsc.uniovi.es}Author Vitae
• 关键词：Wireless sensor networks (WSNs) ; Indoor location systems (ILS) ; Angle of arrival (AoA) ; Received signal strength (RSS) ; Radio frequency identification (RFID) ; Radiodetermination
• 刊名：Sensors and Actuators A: Physical
• 出版年：2017
• 出版时间：1 March 2017
• 年：2017
• 卷：255
• 期：Complete
• 页码：118-133
• 全文大小：8756 K
• 卷排序：255

文摘

Development and testing of a simple, low-cost ILS system based on a simple Direction Finder (DF) that uses relative RSS levels for AoA estimation, and the absolute RSS levels for range estimation. Capability of providing positioning information with a single sensing unit, with a relative error of 26% (85% confidence level). Accuracy can be improved by adding more sensing units. Accuracy is improved by adding a second sensing unit: 14.5% relative error (90% confidence level). Use of multiple RFID tags attached to the asset or person to be tracked to enhance detection, reducing RSS fluctuations due to multipath.