Evidence map›Paper›PMID 29258195›Full record

ArticleSensors (Basel, Switzerland)2017

A Bluetooth Low Energy Indoor Positioning System with Channel Diversity, Weighted Trilateration and Kalman Filtering.

Vicente Cantón Paterna, Anna Calveras Augé, Josep Paradells Aspas, María Alejandra Pérez Bullones

Abstract read
In one paragraph

Article in Sensors (Basel, Switzerland), 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 38 papers.

0numbers the graph read from it
0cells of the map it votes in
38citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

38 citing papers in PubMed.

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  19. Development and Evaluation of Bluetooth Low-Energy Device for Electronic Encounter Metrics.Journal of research of the National Institute of Standards and Technology · 2021
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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

4 authors.

Vicente Cantón PaternaDepartment of Telematics Engineering, Universitat Politècnica de Catalunya, 08034 Barcelona, Spain. vcantonpaterna@gmail.com.
Anna Calveras AugéDepartment of Telematics Engineering, Universitat Politècnica de Catalunya, 08034 Barcelona, Spain. anna.calveras@entel.upc.edu.ORCID 0000-0001-6371-8595
Josep Paradells AspasDepartment of Telematics Engineering, Universitat Politècnica de Catalunya, 08034 Barcelona, Spain. josep.paradells@entel.upc.edu.
María Alejandra Pérez BullonesDepartment of Telematics Engineering, Universitat Politècnica de Catalunya, 08034 Barcelona, Spain. mapb1989@gmail.com.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Indoor Positioning Systems (IPS) using Bluetooth Low Energy (BLE) technology are currently becoming real and available, which has made them grow in popularity and use. However, there are still plenty of challenges related to this technology, especially in terms of Received Signal Strength Indicator (RSSI) fluctuations due to the behaviour of the channels and the multipath effect, that lead to poor precision. In order to mitigate these effects, in this paper we propose and implement a real Indoor Positioning System based on Bluetooth Low Energy, that improves accuracy while reducing power consumption and costs. The three main proposals are: frequency diversity, Kalman filtering and a trilateration method what we have denominated "weighted trilateration". The analysis of the results proves that all the proposals improve the precision of the system, which goes up to 1.82 m 90% of the time for a device moving in a middle-size room and 0.7 m for static devices. Furthermore, we have proved that the system is scalable and efficient in terms of cost and power consumption. The implemented approach allows using a very simple device (like a SensorTag) on the items to locate. The system enables a very low density of anchor points or references and with a precision better than existing solutions.

Indexed as

accuracyBLEBLE Tagfrequency diversityindoor positioning systemKalman filteringtrilateration

Identifiers

PMID29258195
PMCPMC5750706

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Registered trials

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.