Journal ArticleDOI
Location Fingerprinting With Bluetooth Low Energy Beacons
Ramsey Faragher,Robert Harle +1 more
TLDR
This work provides a detailed study of BLE fingerprinting using 19 beacons distributed around a ~600 m2 testbed to position a consumer device, and investigates the choice of key parameters in a BLE positioning system, including beacon density, transmit power, and transmit frequency.Abstract:
The complexity of indoor radio propagation has resulted in location-awareness being derived from empirical fingerprinting techniques, where positioning is performed via a previously-constructed radio map, usually of WiFi signals. The recent introduction of the Bluetooth Low Energy (BLE) radio protocol provides new opportunities for indoor location. It supports portable battery-powered beacons that can be easily distributed at low cost, giving it distinct advantages over WiFi. However, its differing use of the radio band brings new challenges too. In this work, we provide a detailed study of BLE fingerprinting using 19 beacons distributed around a $\sim\! 600\ \mbox{m}^2$ testbed to position a consumer device. We demonstrate the high susceptibility of BLE to fast fading, show how to mitigate this, and quantify the true power cost of continuous BLE scanning. We further investigate the choice of key parameters in a BLE positioning system, including beacon density, transmit power, and transmit frequency. We also provide quantitative comparison with WiFi fingerprinting. Our results show advantages to the use of BLE beacons for positioning. For one-shot (push-to-fix) positioning we achieve $30\ \mbox{m}^2$ ), compared to $100\ \mbox{m}^2$ ) and < 8.5 m for an established WiFi network in the same area.read more
Citations
More filters
Journal ArticleDOI
Glow in Dark Luminous Hi-Vis Reflective Safety Vest China
You-Wei Lin,Chi-Yi Lin +1 more
Proceedings ArticleDOI
Sliding Window Integrated Weighting Algorithm for Positioning Indoor Active Objects
Wei Wu,Leidi Shen +1 more
TL;DR: The results demonstrate that the SWIMMING algorithm takes advantage of high location accuracy, cost-effective computational energy consumption, and ease of deployment, and the algorithm achieves errors less than 1.5m 90% of the time under such dynamic conditions.
Proceedings ArticleDOI
Multisensor Data Fusion for Reliable Obstacle Avoidance
TL;DR: In this paper , Li et al. proposed a new approach that combines data from multiple sensors for reliable obstacle avoidance, which includes two depth cameras and a LiDAR arranged so that they can capture the whole 3D area in front of the robot and a 2D slide around it.
Journal ArticleDOI
Adaptive indoor positioning method based on direction discrimination and device conversion
TL;DR: Experimental results show that the proposed adaptive indoor positioning method can solve the problems of occlusion direction and device heterogeneity and the engineering applicability of positioning system can also be greatly improved.
References
More filters
Journal ArticleDOI
Survey of Wireless Indoor Positioning Techniques and Systems
TL;DR: Comprehensive performance comparisons including accuracy, precision, complexity, scalability, robustness, and cost are presented.
Proceedings ArticleDOI
The Horus WLAN location determination system
TL;DR: The Horus system identifies different causes for the wireless channel variations and addresses them and uses location-clustering techniques to reduce the computational requirements of the algorithm and the lightweight Horus algorithm helps in supporting a larger number of users by running the algorithm at the clients.
Journal ArticleDOI
A Survey of Indoor Inertial Positioning Systems for Pedestrians
TL;DR: It is concluded that PDR techniques alone can offer good short- to medium- term tracking under certain circumstances, but that regular absolute position fixes from partner systems will be needed to ensure long-term operation and to cope with unexpected behaviours.
Enhancements to the RADAR User Location and Tracking System
TL;DR: This paper analyzes shortcomings of the basic system, develops and evaluates solutions to address these shortcomings, and describes several new enhancements, including a novel access point-based environmental profiling scheme, and a Viterbi-like algorithm for continuous user tracking and disambiguation of candidate user locations.
Network Time Protocol Version 4: Protocol and Algorithms Specification
TL;DR: NTP version 4 (NTPv4), which is backwards compatible with NTP version 3 (N TPv3), described in RFC 1305, as well as previous versions of the protocol, are described.
Related Papers (5)
Wi-Fi Fingerprint-Based Indoor Positioning: Recent Advances and Comparisons
Suining He,S.-H. Gary Chan +1 more