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Chair for Computer Aided Medical Procedures & Augmented Reality
Lehrstuhl für Informatikanwendungen in der Medizin & Augmented Reality

M. Huber, B. Becker, G. Klinker
Location aware computing using RFID infrastructure
Int. J. Autonomous and Adaptive Communications Systems, Vol. 3, No. 1, 2010, pp. 23 - 38 (bib)

This paper focuses on the possibilities of utilizing infrastructural RFIDs for location aware computing. A key to automated computer-aided work is location and situation awareness. This allows the system to operate independently from direct user input, minimising the impact on the original process. For demonstration purposes a large area tracking system using existing RFID technology and infrastructure is developed and evaluated. As a first possible application we embed the system into an aircraft cabin. The localization procedure is based on the coordinates of the RFID transponders detected by the RFID reader, as well as the orientation information measured by a gyroscope. To increas robustness concerning environmental noise and interferences, we estimate tags readability using modulated power output of the antenna. The average error of our demonstration set-up is below half a meter. Possible use cases range from maintenance assistance to way finding in commercial shops or underground parking lots.
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