Abstract
This paper proposes a new method for enhancing the accuracy and availability of positioning in indoor environment based on fusion of the positioning results obtained from two sensing technologies, Inertial Navigation System (INS) and Wireless Sensor Network (WSN) (in this case Bluetooth- based positioning system). The performance of each individual sensing technology has been optimised first using new positioning methods before performing the fusion of results. The fusion is achieved by the utilisation of two fusion filters, particle filter and Extended Kalman filter, and is thoroughly tested using a portable data acquisition unit which is specially designed for that purpose. Detailed analysis and comparison of the performance between particle filter and Extended Kalman filter has been performed. Results show that the proposed fusion method reduces the errors compared to single sensing technology and the mean distance error of the final fused system is maintained below 1 metre using either of the two filters.
Keywords: Bluetooth, indoor tracking, inertial navigation system, Kalman Filter, particle filter, sensor fusion, wireless sensor network.
International Journal of Sensors, Wireless Communications and Control
Title:Indoor Positioning Using WSN and INS Sensor Fusion
Volume: 4 Issue: 1
Author(s): Ehad Akeila, Zoran Salcic and Akshya Swain
Affiliation:
Keywords: Bluetooth, indoor tracking, inertial navigation system, Kalman Filter, particle filter, sensor fusion, wireless sensor network.
Abstract: This paper proposes a new method for enhancing the accuracy and availability of positioning in indoor environment based on fusion of the positioning results obtained from two sensing technologies, Inertial Navigation System (INS) and Wireless Sensor Network (WSN) (in this case Bluetooth- based positioning system). The performance of each individual sensing technology has been optimised first using new positioning methods before performing the fusion of results. The fusion is achieved by the utilisation of two fusion filters, particle filter and Extended Kalman filter, and is thoroughly tested using a portable data acquisition unit which is specially designed for that purpose. Detailed analysis and comparison of the performance between particle filter and Extended Kalman filter has been performed. Results show that the proposed fusion method reduces the errors compared to single sensing technology and the mean distance error of the final fused system is maintained below 1 metre using either of the two filters.
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Cite this article as:
Akeila Ehad, Salcic Zoran and Swain Akshya, Indoor Positioning Using WSN and INS Sensor Fusion, International Journal of Sensors, Wireless Communications and Control 2014; 4 (1) . https://dx.doi.org/10.2174/2210327905666150203233309
DOI https://dx.doi.org/10.2174/2210327905666150203233309 |
Print ISSN 2210-3279 |
Publisher Name Bentham Science Publisher |
Online ISSN 2210-3287 |
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