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Position Information Acquisition Method Based on LED Lights and Smart Device Camera Using 3-Axis Moving Distance Measurement

3축 이동량 측정을 이용한 LED조명과 스마트단말 카메라기반 위치정보 획득 기법

  • Jung, Soon-Ho (Graduate School of NID Fusion Tech., Seoul National University of Science and Technology) ;
  • Lee, Min-Woo (Graduate School of NID Fusion Tech., Seoul National University of Science and Technology) ;
  • Kim, Ki-Yun (Dept. of Electrical Eng., Myongji College) ;
  • Cha, Jae-Sang (Dept. of Electronics & IT Media Eng., Seoul National University of Science and Technology)
  • Received : 2014.11.18
  • Accepted : 2014.12.22
  • Published : 2015.01.30

Abstract

As the age of smart device has come, recently many application services related to smart phone are developing. The LBS(Location Based Service) technique is considered as one of the most important techniques to support location based application services. Usually the smart phone acquires the information of position by using the position recognition systems and sensors such as GPS(Global Positioning System) and G-Sensor. However, since the GPS signal from the satellite can hardly be received in the indoor environments, new LBS techniques for the indoor environment are required. In this paper, to solve the problem a position information transceiver using LED lights and smart phone camera sensor is proposed. We proved the possibility of the proposed positioning system through the experiments in the laboratory for the practical verification.

스마트기기 시대가 도래함에 따라, 최근 스마폰과 관련한 많은 응용 서비스들이 개발되고 있으며, LBS(Location Based Service) 기술은 위치 기반 서비스를 제공하기 위해 가장 중요한 기술 중의 하나로 인식되고 있다. 일반적으로 스마트폰의 위치인식은 GPS(Global Positioning System), G-Sensor와 같은 위치 인식 시스템 및 센서를 이용하여 위치 정보를 획득하게 된다. 그러나 실내에서는 위성으로부터의 GPS 신호를 수신하기가 거의 불가능하므로 실내 환경을 위한 새로운 LBS 기술이 필요하다. 본 논문에서는 이러한 문제를 해결하기 위해 LED 조명과 스마트폰의 카메라 센서를 이용한 위치정보 송수신기를 제안한다. 제안 위치 인식 시스템의 실용성 검증을 위해 실험실 환경에서의 실험을 통해 그 가능성을 입증하였다.

Keywords

References

  1. P. Z. Fan, N. Suehiro, N. Kuroyanagi, and X. M. Deng, "Class of binary sequences with zero correlation zone," IET Electron. Lett., vol. 35, no. 10, pp. 777-779, May 1999. https://doi.org/10.1049/el:19990567
  2. J. Lee and J. Cha, "A study of VLC channel modeling using user location environment," J. KICS, vol. 36, no. 10, pp. 1240-1245, Oct. 2010. https://doi.org/10.7840/KICS.2011.36B.10.1240
  3. R. Y. Tsai, "A versatile camera calibration technique for high-accuracy 3d machine vision metrology using off-the shelf tv cameras and lenses," IEEE J. Robotics and Automation, vol. RA-3, pp. 323-344, 1987.
  4. J. S. Cha, "Class of ternary spreading sequences with zero correlation duration," IET Electron. Lett., vol. 37, no. 10, pp. 636-637, May 2001. https://doi.org/10.1049/el:20010450
  5. B. Kim, K. Hur, Y. Lee, and S. R. Lee, "Research for applying WUSB over WBAN technology to indoor localization and personal communications in a ship," J. KICS, vol. 38C, no. 3, pp. 318-326, Mar. 2013. https://doi.org/10.7840/kics.2013.38C.3.318
  6. S. Lee, J. Lee, and J. Cha, "A study of watermarking data transmission scheme for BPSK-OFDM based LED communication system," J. KICS, vol. 36, no. 10, pp. 1246-1251, Oct. 2011. https://doi.org/10.7840/KICS.2011.36B.10.1246

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