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CAPTURE – Widening the Net of Indoor Positioning using Cooperative Techniques

Authors:
Gary Cullen
Kevin Curran
Jose Santos

Keywords: Cooperative Positioning; Collaborative Positioning; Self Positioning; Indoor Positioning Systems; IPS.

Abstract:
Context is fast becoming a fundamental requirement in modern day application development. Key to this requirement is the accuracy of the contextualized information being processed. Incorrectly interpreted context can lead to a missed opportunity or an inappropriate user interruption. Location is arguably one of the most significant contexts that can add value to an applications perceived intelligence. Timely and accurate knowledge of a user’s position can vastly improve the precision of contextualized information. Global Navigation Satellite Systems (GNSSs) such as the Global Positioning System (GPS) have the capacity to locate a mobile device with enough precision to provide adequate context to nearly any application purpose. More importantly, it has the coverage to do so at a global level, with 24 satellites with an almost unobstructed view, providing the necessary infrastructure to deliver such vast yields. Unfortunately, GPS positioning signals do not have the strength to penetrate a buildings fabric, after making the near 22,000 km journey to earth. This makes its application as a Location Based System (LBS) in the indoor arena virtually redundant. Considering most of our time is spent indoors the need for a solution to the indoor positioning problem is obvious. Many noteworthy systems have been developed that attempt to address the notion of localization in the indoor environment. With the use of a myriad of technologies and novel implementations these systems have somewhat overcome the issues surrounding the level of accuracy in indoor positioning. In actual fact most of the research in the area of Indoor Positioning Systems (IPSs) has been primarily focused on solving the problem of positioning accuracy. All the time an equally important issue of yield or coverage has been somewhat overlooked. Accuracy becomes, to an extent meaningless in areas where even coarse positioning is unobtainable. It is the focus of this research to address the issue of coverage in IPSs. The concept is to utilize mobile devices to cooperatively locate devices that cannot be ‘seen’ by IPS’s in indoor environments. The methodology of such an approach is to use a cooperation of devices at the extremities of IPS ranges. These devices have themselves already been positioned, but can ‘see’ beyond the IPSs current range and can, in concert, locate devices that they can ‘see’.

Pages: 70 to 74

Copyright: Copyright (c) IARIA, 2016

Publication date: November 13, 2016

Published in: conference

ISSN: 2308-4219

ISBN: 978-1-61208-514-2

Location: Barcelona, Spain

Dates: from November 13, 2016 to November 17, 2016