LiBeamScanner: Accurate indoor positioning with sweeping light beam

Chang Jung Huang, Yu Lin Wei, Chiao Fu, Wen Hsuan Shen, Hsin Mu Tsai, Ching-Ju Lin

Research output: Chapter in Book/Report/Conference proceedingConference contribution

2 Scopus citations

Abstract

This paper proposes LiBeamScanner, an indoor positioning system that utilizes only a single custom light bulb and a light sensor to achieve extremely high positioning accuracy. Single light bulb means that a dense deployment of illuminaries is unnecessary, and the use of a light sensor, instead of a camera, implies that even systems with strict energy constraints, such as wearable devices, can make use of our system. At the physical layer, we propose a novel transmitter design that allows information to be modulated onto very narrow light beams, projected to a large number of fine-grained locations simultaneously. More importantly, these light beams generate negligible interference to each other, as a result providing a high resolution for enabling accurate positioning. Evaluation results of our prototype show that most of the errors are less than 3cm and the average error does not exceed 5cm.

Original languageEnglish
Title of host publicationVLCS 2015 - Proceedings of the 2nd International Workshop on Visible Light Communications Systems, co-located with MobiCom 2015
PublisherAssociation for Computing Machinery, Inc
Pages33-38
Number of pages6
ISBN (Electronic)9781450337021
DOIs
StatePublished - 11 Sep 2015
Event2nd International Workshop on Visible Light Communications Systems, VLCS 2015 - Paris, France
Duration: 11 Sep 2015 → …

Publication series

NameVLCS 2015 - Proceedings of the 2nd International Workshop on Visible Light Communications Systems, co-located with MobiCom 2015

Conference

Conference2nd International Workshop on Visible Light Communications Systems, VLCS 2015
CountryFrance
CityParis
Period11/09/15 → …

Keywords

  • Indoor Positioning
  • Polarization
  • Visible Light

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  • Cite this

    Huang, C. J., Wei, Y. L., Fu, C., Shen, W. H., Tsai, H. M., & Lin, C-J. (2015). LiBeamScanner: Accurate indoor positioning with sweeping light beam. In VLCS 2015 - Proceedings of the 2nd International Workshop on Visible Light Communications Systems, co-located with MobiCom 2015 (pp. 33-38). (VLCS 2015 - Proceedings of the 2nd International Workshop on Visible Light Communications Systems, co-located with MobiCom 2015). Association for Computing Machinery, Inc. https://doi.org/10.1145/2801073.2801079