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A Study on Relative Positioning based on Acoustic Signal of Smart phone

스마트폰 음향신호 기반의 상대위치 인식 기술 연구

  • Oh, Jongtaek (Dept. of ICs Engineering, Hansung University)
  • 오종택 (한성대학교 정보통신공학과)
  • Received : 2012.11.06
  • Accepted : 2013.02.08
  • Published : 2013.02.28

Abstract

As the popularization and proliferation of smart phone and location based services, the necessity and importance of the location based service based on the smart phone becomes significant. But existing technologies could not be applied in real situation due to the lack of accuracy, economy, and convenience, the method using the signal strength of WLAN is not accurate. In this paper, the technical back ground, implementation issue, and measurement result are described for the proposed relative positioning technology using acoustic signal and Bluetooth with smart phone. It is possible to measure the position of the smart phone with accuracy and simple device, and it is very proper especially for the indoor location based intelligent services.

스마트폰의 보급과 위치 기반 서비스의 활성화로 스마트폰을 기반으로 하는 위치정보 서비스의 필요성과 중요성이 매우 중요해지고 있다. 그러나 기존의 방법들은 경제성이나 편의성, 정확도의 부족으로 실용화가 어려운 상황이며, 무선랜의 신호세기를 이용한 방법은 정확도가 떨어지는 문제가 있다. 본 논문에서는 스마트폰의 음향신호와 블루투스 통신 방식을 이용한 상대위치 인식 기술에 대한 기술적 배경과 구현 기술 및 측정 결과에 대해 기술하였다. 이 기술은 저렴한 구현 비용의 단일 장치로 스마트폰의 정밀한 측위가 가능하며, 특히 실내에서의 위치기반 지능화 서비스에 적합하다.

Keywords

References

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Cited by

  1. Construction of Precise Local Geoid using GPS/Leveling vol.15, pp.7, 2014, https://doi.org/10.5762/KAIS.2014.15.7.4595
  2. 3D Indoor Positioning System Based on Smartphone vol.38C, pp.12, 2013, https://doi.org/10.7840/kics.2013.38C.12.1126