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Antonio-Pedro Albín-Rodríguez
Education and Sports Council, Junta de Andalucía (Regional Government of Andalusia), 23007 Jaén, Spain

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Journal article
Published: 06 August 2021 in International Journal of Environmental Research and Public Health
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Due to the large number of elderly people with physical and cognitive issues, there is a strong need to provide indoor location systems that help caregivers monitor as many people as possible and with the best quality possible. In this paper, a fuzzy indoor location methodology is proposed in a smart environment based on mobile devices and Bluetooth Low Energy (BLE) beacons where a set of Received Signal Strength Indicators (RSSI) is received by mobile devices worn by the inhabitants. The use of fuzzy logic and a fuzzy linguistic approach is proposed to deal with the imprecise nature of the RSSI values, which are influenced by external factors such as radio waves, causing significant fluctuations. A case study carried out at the Smart Lab of the University of Jaén (UJAmI Smart Lab) is presented to demonstrate the effectiveness of the proposed methodology, where our proposal is compared with a non-fuzzy logic approach, obtaining an accuracy of 91.63%, approximately 10 points higher than the methodology without using fuzzy logic. Finally, our theoretical proposal is accompanied by a description of the UJAmI Location system, which applies the theory to the functionality of locating elderly people in indoor environments.

ACS Style

Antonio-Pedro Albín-Rodríguez; Yolanda-María De-La-Fuente-Robles; José-Luis López-Ruiz; Ángeles Verdejo-Espinosa; Macarena Espinilla Estévez. UJAmI Location: A Fuzzy Indoor Location System for the Elderly. International Journal of Environmental Research and Public Health 2021, 18, 8326 .

AMA Style

Antonio-Pedro Albín-Rodríguez, Yolanda-María De-La-Fuente-Robles, José-Luis López-Ruiz, Ángeles Verdejo-Espinosa, Macarena Espinilla Estévez. UJAmI Location: A Fuzzy Indoor Location System for the Elderly. International Journal of Environmental Research and Public Health. 2021; 18 (16):8326.

Chicago/Turabian Style

Antonio-Pedro Albín-Rodríguez; Yolanda-María De-La-Fuente-Robles; José-Luis López-Ruiz; Ángeles Verdejo-Espinosa; Macarena Espinilla Estévez. 2021. "UJAmI Location: A Fuzzy Indoor Location System for the Elderly." International Journal of Environmental Research and Public Health 18, no. 16: 8326.

Journal article
Published: 16 September 2020 in International Journal of Environmental Research and Public Health
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Hyperactive behaviour refers to a person making more movement than expected for his or her age and development, acting impulsively, and being easily distracted. There is a need to encourage early and reliable detection through the proposal of new methodologies and systems in the context of hyperactive behaviour to prevent or lessen related problems and disorders. This paper presents a methodology to compute a fuzzy protoform (a linguistic description) as an estimator for hyperactive behaviour. The proposed methodology is developed in a system called Smart HyBeDe, which integrate non-invasive and commercial wearable devices, such as activity bracelets, in order to capture data streams from inertial measurement units and optical heart rate sensors. The generated data by the wearable device are synchronized with a mobile device to process the fuzzy protoform to inform family members and professionals. Three datasets generated by the wearable device in real contexts are presented. These datasets are used to evaluate the impact of wrist choice for the wearable device, multiple fuzzy temporal windows, different aggregation operators, and relevant linguistic terms to define the fuzzy protoform as an estimator for the hyperactive behaviour. The results, analysed by a hyperactive behaviour expert, show that the proposed protoform is a suitable hyperactive behaviour estimator.

ACS Style

Antonio-Pedro Albín-Rodríguez; Adrián-Jesús Ricoy-Cano; Yolanda-María De-La-Fuente-Robles; Macarena Espinilla-Estévez. Fuzzy Protoform for Hyperactive Behaviour Detection Based on Commercial Devices. International Journal of Environmental Research and Public Health 2020, 17, 6752 .

AMA Style

Antonio-Pedro Albín-Rodríguez, Adrián-Jesús Ricoy-Cano, Yolanda-María De-La-Fuente-Robles, Macarena Espinilla-Estévez. Fuzzy Protoform for Hyperactive Behaviour Detection Based on Commercial Devices. International Journal of Environmental Research and Public Health. 2020; 17 (18):6752.

Chicago/Turabian Style

Antonio-Pedro Albín-Rodríguez; Adrián-Jesús Ricoy-Cano; Yolanda-María De-La-Fuente-Robles; Macarena Espinilla-Estévez. 2020. "Fuzzy Protoform for Hyperactive Behaviour Detection Based on Commercial Devices." International Journal of Environmental Research and Public Health 17, no. 18: 6752.