Please use this identifier to cite or link to this item: https://doi.org/10.1007/s00779-007-0140-9
Title: Ubiquitous interaction with positioning and navigation using a novel light sensor-based information transmission system
Authors: Cheok, A.D. 
Li, Y.
Keywords: Augmented reality
Electronic ballast
Fluorescent lamp
Navigation
Wearable computer
Issue Date: Aug-2008
Source: Cheok, A.D.,Li, Y. (2008-08). Ubiquitous interaction with positioning and navigation using a novel light sensor-based information transmission system. Personal and Ubiquitous Computing 12 (6) : 445-458. ScholarBank@NUS Repository. https://doi.org/10.1007/s00779-007-0140-9
Abstract: This paper describes a novel light sensor-based information transmission system for indoor positioning and navigation with particular benefits for mobile and wearable computers. It can seamlessly extend outdoor GPS tracking to the indoor environment. In a novel manner, fluorescent light is used as the medium to transmit information, which is encoded by using a pulse-frequency modulation technique. The user receives the encoded light information through a photo-receiver. The information is passed into the wearable or mobile computer after the data is decoded. This information allows positioning information to be given to indoor mobile and wearable computers. We design an economical transmitter circuit by adding few components to a commercial electronic ballast circuit for fluorescent lamps with price of less than US $10. The propose system can be used in indoor guidance and navigation applications. Exemplary applications are included in the paper, with experimented results detailed. © Springer-Verlag London Limited 2007.
Source Title: Personal and Ubiquitous Computing
URI: http://scholarbank.nus.edu.sg/handle/10635/57737
ISSN: 16174909
DOI: 10.1007/s00779-007-0140-9
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