An Approach for Autonomous Recalibration of Fingerprinting-Based Indoor Localization Systems

Fet, Ngewi; Handte, Marcus; Marrón, Pedro José

doi:10.1109/ie.2016.13

Cited by 9 publications

(4 citation statements)

References 21 publications

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“…These re-estimated trajectories can be adopted to update the radio map. In [ 22 ], APs were used to detect permanent changes in RSS values and to modify the radio map accordingly. The update was performed using a Voronoi diagram, excluding from the recalibration those APs for which RSS characteristics changed significantly.…”

Section: Related Workmentioning

confidence: 99%

“…In dynamic environments, the system needs to be recalibrated regularly as the radio map becomes outdated when the propagation environment changes over time. A number of solutions have been researched to simplify the recalibration process [ 21 , 22 , 23 ]; nevertheless, in most cases, additional infrastructure is needed. The other drawback is the number of reference nodes that need to be installed on site to collect information about the signal.…”

Section: Introductionmentioning

confidence: 99%

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Calibration-Free Single-Anchor Indoor Localization Using an ESPAR Antenna

Groth

Nyka

Kulas

2021

Sensors

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In this paper, we present a novel, low-cost approach to indoor localization that is capable of performing localization processes in real indoor environments and does not require calibration or recalibration procedures. To this end, we propose a single-anchor architecture and design based on an electronically steerable parasitic array radiator (ESPAR) antenna and Nordic Semiconductor nRF52840 utilizing Bluetooth Low Energy (BLE) protocol. The proposed algorithm relies on received signal strength (RSS) values measured by the receiver equipped with the ESPAR antenna for every considered antenna radiation pattern. The calibration-free concept is achieved by using inexpensive BLE nodes installed in known positions on the walls of the test room and acting as reference nodes for the positioning algorithm. Measurements performed in the indoor environment show that the proposed approach can successfully provide positioning results better than those previously reported for single-anchor ESPAR antenna localization systems employing the classical fingerprinting method and relying on time-consuming calibration procedures.

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Section: Related Workmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Calibration-Free Single-Anchor Indoor Localization Using an ESPAR Antenna

Groth

Nyka

Kulas

2021

Sensors

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“…For instance, the use of WiFi fingerprint involves a recalibration process that should be done every certain time depending on several factors. More information about this and an approach to overcome it can be found in [18]. Video processing is an example in which the privacy issues that are associated with the research area are not addressed by the technology.…”

Section: Related Workmentioning

confidence: 99%

Achieving Multi-User Capabilities through an Indoor Positioning System based on BLE Beacons

Quinde

Gimenez-Manuel

Oguego

et al. 2020

2020 16th International Conference on Intelligent Environments (IE)

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“…In Gu et al (2016) the authors reduce in a half the number of samples needed to create the WiFi map taking advantage of the hidden structure and redundancy characteristics of WiFi samples. Other works try to cope with re-calibration when changes in the environment are detected (Fet et al (2016)), although an accuracy degradation is always present when moving furniture, new walls are lifted or removed, and so on.…”

Section: Introductionmentioning

confidence: 99%