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- Title
Towards a Decentralized Magnetic Indoor Positioning System.
- Authors
Kasmi, Zakaria; Norrdine, Abdelmoumen; Blankenbach, Jörg
- Abstract
Decentralized magnetic indoor localization is a sophisticated method for processing sampled magnetic data directly on a mobile station (MS), thereby decreasing or even avoiding the need for communication with the base station. In contrast to central-oriented positioning systems, which transmit raw data to a base station, decentralized indoor localization pushes application-level knowledge into the MS. A decentralized position solution has thus a strong feasibility to increase energy efficiency and to prolong the lifetime of the MS. In this article, we present a complete architecture and an implementation for a decentralized positioning system. Furthermore, we introduce a technique for the synchronization of the observed magnetic field on the MS with the artificially-generated magnetic field from the coils. Based on real-time clocks (RTCs) and a preemptive operating system, this method allows a stand-alone control of the coils and a proper assignment of the measured magnetic fields on the MS. A stand-alone control and synchronization of the coils and the MS have an exceptional potential to implement a positioning system without the need for wired or wireless communication and enable a deployment of applications for rescue scenarios, like localization of miners or firefighters.
- Subjects
INDOOR positioning systems; MOBILE radio stations; REAL-time clocks (Computers); DECENTRALIZED control systems; WIRELESS communications; SYNCHRONIZATION
- Publication
Sensors (14248220), 2015, Vol 15, Issue 12, p30319
- ISSN
1424-8220
- Publication type
Article
- DOI
10.3390/s151229799