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A robust and precise 3D indoor positioning system for harsh environments

Blankenbach, Jörg and Norrdine, Abdelmoumen and Hellmers, Hendrik (2012):
A robust and precise 3D indoor positioning system for harsh environments.
Sidney, Australia, In: 2012 International Conference on Indoor Positioning and Indoor Navigation (IPIN), Sidney, Australia, [Online-Edition: http://ieeexplore.ieee.org/document/6418863/],
[Conference or Workshop Item]

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Abstract

In recent years there has been a considerable research on the development of indoor positioning systems. Several kinds of technologies such as ultrasonic, UWB, WLAN, optical waves and hybrid solutions were utilized already. However, using these technologies many difficulties arise in indoor environments due to none line of sight (NLoS) and multipath errors. In this paper, the realization and the evaluation of a 3D indoor localization system, which is robust for harsh and NLoS environments is presented. The positioning system is Direct Current (DC) magnetic based, shows no multipath effects and has excellent characteristics for penetrating various obstacles. To eliminate additional interference fields (e.g. earth's magnetic field, electrical disturbances) a differential measurement principle and adaptive noise suppression algorithms are used. In the case of the deployment in smaller areas, even smart phones equipped with embedded low cost sensors can be utilized as mobile station. A real time 3D position estimation with an accuracy up to 50 cm is achievable by setting up only three magnetic coils inside or around the building. In order to analyze existing systematic errors, a simple calibration procedure has been implemented. The calibration routine reduces the systematic errors, which leads to improved system's positioning accuracy up to 10 cm.

Item Type: Conference or Workshop Item
Erschienen: 2012
Creators: Blankenbach, Jörg and Norrdine, Abdelmoumen and Hellmers, Hendrik
Title: A robust and precise 3D indoor positioning system for harsh environments
Language: English
Abstract:

In recent years there has been a considerable research on the development of indoor positioning systems. Several kinds of technologies such as ultrasonic, UWB, WLAN, optical waves and hybrid solutions were utilized already. However, using these technologies many difficulties arise in indoor environments due to none line of sight (NLoS) and multipath errors. In this paper, the realization and the evaluation of a 3D indoor localization system, which is robust for harsh and NLoS environments is presented. The positioning system is Direct Current (DC) magnetic based, shows no multipath effects and has excellent characteristics for penetrating various obstacles. To eliminate additional interference fields (e.g. earth's magnetic field, electrical disturbances) a differential measurement principle and adaptive noise suppression algorithms are used. In the case of the deployment in smaller areas, even smart phones equipped with embedded low cost sensors can be utilized as mobile station. A real time 3D position estimation with an accuracy up to 50 cm is achievable by setting up only three magnetic coils inside or around the building. In order to analyze existing systematic errors, a simple calibration procedure has been implemented. The calibration routine reduces the systematic errors, which leads to improved system's positioning accuracy up to 10 cm.

Place of Publication: Sidney, Australia
Uncontrolled Keywords: Adaptive Filtering, adaptive noise suppression algorithms, Adaptive optics, calibration routine, Coils, differential measurement principle, direct current magnetic based environments, embedded low cost sensors, harsh environments, indoor communication, Indoor Positioning, interference fields, interference (signal), Localization, magnetic coils, Magnetic field measurement, Magnetic Indoor Local Positioning System, Mobile communication, mobile station, multipath errors, navigation, NLoS environments, none line of sight, Optical sensors, Position measurement, precise 3D indoor positioning system, real time 3D position estimation, smart phones, systematic errors, Wireless LAN
Divisions: 13 Department of Civil and Environmental Engineering Sciences
13 Department of Civil and Environmental Engineering Sciences > Institute of Geodesy
13 Department of Civil and Environmental Engineering Sciences > Institute of Geodesy > Geodetic Measuring Systems and Sensor Technology
Event Title: 2012 International Conference on Indoor Positioning and Indoor Navigation (IPIN)
Event Location: Sidney, Australia
Date Deposited: 09 Nov 2016 07:55
Official URL: http://ieeexplore.ieee.org/document/6418863/
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