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Sensors 2014, 14(4), 5952-5966;

Locatable-Body Temperature Monitoring Based on Semi-Active UHF RFID Tags

School of Electronic and Information Engineering, Tianjin University, Tianjin 300192, China
Nankai University Binhai College, Tianjin 300270, China
School of Electronics and Information Engineering, Tianjin Polytechnic University, Tianjin 300160, China
Author to whom correspondence should be addressed.
Received: 22 January 2014 / Revised: 6 March 2014 / Accepted: 17 March 2014 / Published: 26 March 2014
(This article belongs to the Section Physical Sensors)
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This paper presents the use of radio-frequency identification (RFID) technology for the real-time remote monitoring of body temperature, while an associated program can determine the location of the body carrying the respective sensor. The RFID chip’s internal integrated temperature sensor is used for both the human-body temperature detection and as a measurement device, while using radio-frequency communication to broadcast the temperature information. The adopted RFID location technology makes use of reference tags together with a nearest neighbor localization algorithm and a multiple-antenna time-division multiplexing location system. A graphical user interface (GUI) was developed for collecting temperature and location data for the data fusion by using RFID protocols. With a puppy as test object, temperature detection and localization experiments were carried out. The measured results show that the applied method, when using a mercury thermometer for comparison in terms of measuring the temperature of the dog, has a good consistency, with an average temperature error of 0.283 °C. When using the associated program over the area of 12.25 m2, the average location error is of 0.461 m, which verifies the feasibility of the sensor-carrier location by using the proposed program. View Full-Text
Keywords: RFID; temperature sensing; location; remote monitoring RFID; temperature sensing; location; remote monitoring

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This is an open access article distributed under the Creative Commons Attribution License (CC BY 3.0).

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Liu, G.; Mao, L.; Chen, L.; Xie, S. Locatable-Body Temperature Monitoring Based on Semi-Active UHF RFID Tags. Sensors 2014, 14, 5952-5966.

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