Please use this identifier to cite or link to this item: https://hdl.handle.net/10356/97818
Title: Ultra low-power UWB-RFID system for precise location-aware applications
Authors: Zhou, Yuan
Law, Choi Look
Xia, Jingjing
Keywords: DRNTU::Engineering::Electrical and electronic engineering
Issue Date: 2012
Source: Zhou, Y., Law, C. L., & Xia, J. (2012). Ultra low-power UWB-RFID system for precise location-aware applications. 2012 IEEE Wireless Communications and Networking Conference Workshops (WCNCW).
Abstract: Ultra low-power radio-frequency identification (RFID) tag with precision localization is often the enabling technology for location-aware sensor applications. Impulse-Radio Ultra-Wideband (IR-UWB) is a promising technology to fulfill the usage requirements in indoor cluttered environment. An ultra low-power precise UWB-RFID localization system is proposed in this paper. The RFID tag is a transmitter comprising of a micro-controller board and a UWB impulse radio board. Power saving and precision localization is achieved by optimization of the circuit design for ultra short pulses as well as system architecture and operation. When 1 s sleep mode is incorporated with 0.72 ms active mode, the tag consumes on average 6.8 uA when pulsing at 3.3 MHz rate with 15.5 dBm peak transmit power. The transmitted pulse is captured by low-cost energy-detection receivers at the locator. Measurement in a 6m×6m typical indoor environment demonstrates that the proposed system is able to achieve positioning accuracy of 10 cm. Due to the high sensitivity of the receiver (-71 dBm), the proposed system can reach a potential reading range of over 100 meters. The ultra low-power consumption, accurate ranging and positioning result, and long reading distance makes the proposed system suitable for a variety of intelligent sensor applications.
URI: https://hdl.handle.net/10356/97818
http://hdl.handle.net/10220/12144
DOI: 10.1109/WCNCW.2012.6215480
Rights: © 2012 IEEE.
Fulltext Permission: none
Fulltext Availability: No Fulltext
Appears in Collections:EEE Conference Papers

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