IJSTR

International Journal of Scientific & Technology Research

IJSTR@Facebook IJSTR@Twitter IJSTR@Linkedin
Home About Us Scope Editorial Board Blog/Latest News Contact Us
CALL FOR PAPERS
AUTHORS
DOWNLOADS
CONTACT
QR CODE
IJSTR-QR Code

IJSTR >> Volume 6 - Issue 2, February 2017 Edition



International Journal of Scientific & Technology Research  
International Journal of Scientific & Technology Research

Website: http://www.ijstr.org

ISSN 2277-8616



A Sensing Platform For A UHF RFID System

[Full Text]

 

AUTHOR(S)

Young Ho Lee, Ivan Marsic

 

KEYWORDS

UHF RFID system, sensing platform, uninterrupted interrogation..

 

ABSTRACT

As the read range of passive UHF RFID broadens up to 11 meters compared to 1-meter range of HF RFID, passive tags have been used for many applications such as tracking medical devices and objects of daily living. The RF communication link between the reader antenna and tags for indoors exhibits intermittent loss of signal reception due to antenna orientation mismatch and breakpoints within the antenna coverage area. We propose a design of a sensing platform for tracking objects using a UHF RFID system with passive tags that provides continuous signal reception over the coverage area. We first investigated causes of power loss for passive tags and then designed a sensing platform solution using antenna diversity. The causes of tag’s power loss were eliminated with angle and spatial diversity methods that can cover an arbitrary area of interest. We implemented this design in an indoor setting of a trauma resuscitation room and evaluated it by experimental measurement of signal strength at different points and angles in the area of interest. Our sensing platform supported complete coverage and uninterrupted interrogation of tags as they moved in the area of interest. We conclude that this sensing platform will be suitable for uninterrupted object tracking with UHF RFID technology in generic indoor spaces.

 

REFERENCES

[1] M. Buettner, R. Prasad, M. Philipose, and D. Wetherall, “Recognizing daily activities with RFID-based sensors,” in Proc. 11th Int’l Conf. Ubiquitous Computing, 2009, pp.51-60.

[2] S. Parlak and I. Marsic, “Detection object motion using passive RFID: A trauma resuscitation case study,” IEEE Trans. Instrum. Meas., vol.62, no.9, pp.2430-2437, Sept 2013.

[3] S. Parlak, S. Ayyer, Y.Y. Liu, and I. Marsic, “Design and evaluation of RFID deployments in a trauma resuscitation bay,” IEEE J. Biomed. Health Informatics, vol.18, no.3, pp.1091-1097, May 2014.

[4] L. Yang, Y. Chen, X. Li, C. Xiao, M. Li, and Y. Liu, “Tagoram: Real-time tracking of mobile RFID tags to high precision using COTS devices,” in Proc. 20th ACM Annual Int’l Conf. on Mobile Computing and Networking, 2014, pp. 237-248.

[5] Alien Technology, Inc., http://www.alientechnology.com/

[6] S.R. Banerjee, R. Jesme, and R.A. Sainati, “Performance analysis of short range UHF propagation as applicable to passive RFID,” in Proc. IEEE RFID Conference, 2007, pp. 30-36.

[7] D. Kim, M.A. Ingram, and W.W. Smith, “Measurements of small-scale fading and path loss for long range RF tags,” IEEE Trans. Antennas Propagat., vol.51, no.8, pp.1740-1749, Nov 2003.

[8] L.W. Mayer, M. Wrulich, and S. Caban, “Measurements and channel modeling for short range indoor UHF applications,” in Proc. European Conf. Antennas and Propagat., 2006.

[9] J.E. Bardram, A. Doryab, R.M. Jensen, P.M. Lange, K.L.G. Nielsen, and S.T. Petersen, “Phase recognition during surgical procedures using embedded and body-worn sensors,” in Proc. IEEE Int’l Conf. Pervasive Comput. Commun., 2011, p.45-53.

[10] K. Ohashi, S. Ota, L. Ohno-Machado, and H. Tanaka, “Smart medical environment at the point of care: Auto-tracking clinical interventions at the bed side using RFID technology,” Computers in Biology and Medicine, vol. 40, no. 6, pp. 545-554, 2010.

[11] D. Dobkin, “Indoor propagation issues for wireless LANs,” RF Design, pp 40-46, Sept 2000.

[12] P.V. Nikitin and K.V.S. Rao, “Antennas and propagation in UHF RFID systems,” in Proc. IEEE Int’l Conf. RFID, Las Vegas, NV, 2008, pp. 277-288.

[13] D. Joho, C. Plagemann, and W. Burgard, “Modeling RFID signal strength and tag detection for localization and mapping,” in Proc. IEEE Int’l Conf. Robotics Automat., 2009.

[14] S.C.M Perera, A.G. Wiliamson and G.B. Rowe, “Prediction of breakpoint distance in microcellular environments,” Electronics Letters, vol.35, no.14, pp.1135-1136, July 1999.

[15] A. Chattopadhyay and A. Harish, “Analysis of low range indoor location tracking techniques using passive UHF RFID tags,” in Proc. 2008 IEEE Radio and Wireless Symposium, Jan 2008, pp. 351-354.

[16] J.S. Choi, H. Lee, R. Elmasri and D.W. Engels, “Localization systems using passive UHF RFID,” in Proc. 5th Int’l Joint Conf. INC, IMS and IDC, Aug 2009, pp.1727-1732.

[17] A. Nemmaluri, M.D. Corner, and P. Shenoy, “Sherlock: Automatically locating objects for humans,” in Proc. ACM MobiSys, 2008, pp.187-198.

[18] P. Turaga, R. Chellappa, V. Subrahmanian and O. Udrea, “Machine recognition of human activities: A survey,” IEEE Trans. Circuits Syst. Video Technol., vol.18, no.11 pp.1473-1488, 2008.

[19] S. Parlak, A. Sarcevic, I. Marsic and R.S. Burd, “Introducing RFID technology in dynamic and time-critical settings: Requirements and challenges,” J. Biomed. Informatics, vol.45, no.5, pp.958-974, 2012.

[20] K. Finkenzeller, RFID Handbook, 3rd ed.: A John Wiley and Sons, Ltd., Publicaion, 2010, pp. 76-83.

[21] A.J. Rustako, Jr., N. Amitay, G.J. Owens and R.S. Roman, “Radio propagation at microwave frequencies for line-of-sight microcellular mobile and personal communications,” IEEE Trans. on Vehi. Tech., vol.40, no.1, pp.203-210, Feb 1991.

[22] S.Y. Tan and H.S. Tan, “Improved three dimensional ray tracing technique for microcellular propagation models,” Electronics Letters, vol.31, no.17, pp.1503-1505, Aug 1995.

[23] Wikipedia page on tiling by regular polygons: http://en.wikipedia.org/wiki/Tiling_by_regular_polygons

[24] Federal Communications Commission, http:// www.fcc.gov

[25] D.M. Dobkin, “Tutorial: Radio basics for UHF RFID,” EE Times, July 2008.

[26] EPC/RFID Standards, online at: http://www.gs1.org/epc-rfid

[27] L.G. Robert, “Aloha packet system with and without slots and capture,” ACM SIGCOMM Comput. Commun. Rev., vol.5, no.2, pp.28-42, 1975.