The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences
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Articles | Volume XL-2/W3
Int. Arch. Photogramm. Remote Sens. Spatial Inf. Sci., XL-2/W3, 151–155, 2014
https://doi.org/10.5194/isprsarchives-XL-2-W3-151-2014
Int. Arch. Photogramm. Remote Sens. Spatial Inf. Sci., XL-2/W3, 151–155, 2014
https://doi.org/10.5194/isprsarchives-XL-2-W3-151-2014

  22 Oct 2014

22 Oct 2014

A NEW UBIQUITOUS-BASED INDOOR POSITIONING SYSTEM WITH MINIMUM EXTRA HARDWARE USING SMART PHONES

S. Hassany Pazoky1, A. Chehreghan1, A. Sadeghi Niaraki2, and R. Ali Abbaspour1 S. Hassany Pazoky et al.
  • 1Surveying Dept., College of Engineering, University of Tehran, North Kargar St., Tehran, Iran
  • 2GIS Dept., Geoinformation Tech. Center of Excellence, Faculty of Geodesy & Geomatics Eng, K.N.Toosi Univ. of Tech., Tehran, Iran

Keywords: Ubiquitous computing, Indoor positioning system, Smart phone, Sensor, Accelerometer, Gyroscope

Abstract. Knowing the position has been an ambition in many areas such as science, military, business, etc. GPS was the realization of this wish in 1970s. Technological advances such as ubiquitous computing, as a conquering perspective, requires any service to work for any user, any place, anytime, and via any network. As GPS cannot provide services in indoor environments, many scientists began to develop indoor positioning systems (IPS). Smart phones penetrating our everyday lives were a great platform to host IPS applications. Sensors in smart phones were another big motive to develop IPS applications. Many researchers have been working on the topic developing various applications. However, the applications introduced lack simplicity. In other words, they need to install a step counter or smart phone on the ankle, which makes it awkward and inapplicable in many situations. In the current study, a new IPS methodology is introduced using only the usual embedded sensors in the smart phones. The robustness of this methodology cannot compete with those of the aforementioned approaches. The price paid for simplicity was decreasing robustness and complicating the methods and formulations. However, methods or tricks to harness the errors to an acceptable range are introduced as the future works.