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Accurate positioning based on a combination of power control and signal strength indicator using active RFID system Alghamdi, S and van Schyndel, R 2012, 'Accurate positioning based on a combination of power control and signal strength indicator using active RFID system', in Dr Binghao Li and Mr Thomas Gallagher (ed.) Proceedings of the 3rd International Conference on Indoor Positioning and Indoor Navigation (IPIN2012), Sydney, Australia, 12-15 November 2012, pp. 1-5. Document type: Conference Paper Collection: Conference Papers Title Accurate positioning based on a combination of power control and signal strength indicator using active RFID system Author(s) Alghamdi, S van Schyndel, R Year 2012 Conference name 2012 International Conference on Indoor Positioning and Indoor Navigation Conference location Sydney, Australia Conference dates 12-15 November 2012 Proceedings title Proceedings of the 3rd International Conference on Indoor Positioning and Indoor Navigation (IPIN2012) Editor(s) Dr Binghao Li and Mr Thomas Gallagher Publisher School of Surveying and Geospatial Engineering Place of publication Sydney, Australia Start page 1 End page 5 Total pages 5 Abstract The aim of this paper is to develop a new positioning technique to assist the blind and people with low vision to indicate their locations and reach their destinations. The presented technique is based on a combination of power level and Signal Strength Indicator (SSI) using active Radio Frequency Identification RFID technology. The system uses a mobile reader with power attenuation feature. SSI is used as a distance estimator for short range and in combination with one of eight receiver attenuation level sittings for a wider range of up to 70 meters. Global Positioning System (GPS) works efficiently in a similar environment but is only accurate to around ten to twenty meters and it does not work efficiently at indoor environments. This research has produced an identification localization system which identifies various locations such as offices, labs, theaters and so on to assist users reach their destination of interest. Then it has been conducted as a real empirical case study to identify labs base on a combined technique with a successful identification rate of around 98%. The reader has eight attenuation settings, and the geographic range of each level using various tags has been calculated. Then, to evaluate reliability 108 experiments were conducted using three tags with distances from 1 metre to 25 metres using power settings 1 to 6. A successful detection rate of 93.5% was achieved, as well as a false positive rate of 1%. Subjects Artificial Intelligence and Image Processing not elsewhere classified Information Systems not elsewhere classified Keyword(s) assisted living pedestrian trajectory Copyright notice © ISBN 9780646578514 Versions Version Filter Type Mon, 25 Feb 2013, 11:52:56 EST Filtered Full Access Statistics: 338 Abstract Views  -  Detailed Statistics Created: Mon, 25 Feb 2013, 11:32:00 EST by Catalyst Administrator