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Bluetooth Low Energy-Based Indoor Positioning System for Mobile Devices

Hager, Philipp (2023) Bluetooth Low Energy-Based Indoor Positioning System for Mobile Devices. Master's, University of Applied Sciences Upper Austria.

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In recent years, indoor positioning using Bluetooth Low Energy (BLE) technology has gained significant attention as a consequence of its low power consumption, wide availability, and compatibility with a variety of devices. In this thesis, a BLE-based positioning system introducing a server-based BLE positioning method utilizing received signal strength (RSS) measurements is developed. Here, mobile devices, for instance smartphones, act as broadcasting BLE beacons. The BLE signal is received by static BLE sniffers installed in the environment. The sniffers obtain the RSS of the signal and send the measurements to a server. The position of the mobile device is calculated at the server using a particle filter (PF). As a countermeasure to fading effects caused by multipath propagation and to enhance the distance and position estimation accuracy, each sniffer is equipped with multiple closely spaced BLE receivers. To further increase the positioning accuracy, the RSS measurements are smoothed by a two-staged smoothing filter and a fusion of inertial data from the mobile device. The developed system is evaluated by indoor measurements, where a positioning error with a root mean square error (RMSE) of 0.75 m for a mobile device carried by a robot and a RMSE of 1.1 m for a walking pedestrian is obtained.

Item URL in elib:https://elib.dlr.de/202097/
Document Type:Thesis (Master's)
Title:Bluetooth Low Energy-Based Indoor Positioning System for Mobile Devices
AuthorsInstitution or Email of AuthorsAuthor's ORCID iDORCID Put Code
Date:14 September 2023
Refereed publication:No
Open Access:Yes
Gold Open Access:No
In ISI Web of Science:No
Number of Pages:80
Keywords:BLE, indoor positioning, RSSI, particle filter
Institution:University of Applied Sciences Upper Austria
Department:Embedded Systems Design
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Space
HGF - Program Themes:Communication, Navigation, Quantum Technology
DLR - Research area:Raumfahrt
DLR - Program:R KNQ - Communication, Navigation, Quantum Technology
DLR - Research theme (Project):R - Project HIGAIN [KNQ]
Location: Oberpfaffenhofen
Institutes and Institutions:Institute of Communication and Navigation > Communications Systems
Deposited By: Hager, Philipp
Deposited On:31 Jan 2024 16:25
Last Modified:31 Jan 2024 16:25

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