High-Efficiency Multi-Sensor System for Chair Usage Detection

Recognizing Activities of Daily Living (ADL) or detecting falls in domestic environments require monitoring the movements and positions of a person. Several approaches use wearable devices or cameras, especially for fall detection, but they are considered intrusive by many users. To support such act...

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Main Authors: Alessandro Baserga, Federico Grandi, Andrea Masciadri, Sara Comai, Fabio Salice
Format: Article
Language:English
Published: MDPI AG 2021-11-01
Series:Sensors
Subjects:
Online Access:https://www.mdpi.com/1424-8220/21/22/7580
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author Alessandro Baserga
Federico Grandi
Andrea Masciadri
Sara Comai
Fabio Salice
author_facet Alessandro Baserga
Federico Grandi
Andrea Masciadri
Sara Comai
Fabio Salice
author_sort Alessandro Baserga
collection DOAJ
description Recognizing Activities of Daily Living (ADL) or detecting falls in domestic environments require monitoring the movements and positions of a person. Several approaches use wearable devices or cameras, especially for fall detection, but they are considered intrusive by many users. To support such activities in an unobtrusive way, ambient-based solutions are available (e.g., based on PIRs, contact sensors, etc.). In this paper, we focus on the problem of sitting detection exploiting only unobtrusive sensors. In fact, sitting detection can be useful to understand the position of the user in many activities of the daily routines. While identifying sitting/lying on a sofa or bed is reasonably simple with pressure sensors, detecting whether a person is sitting on a chair is an open problem due to the natural chair position volatility. This paper proposes a reliable, not invasive and energetically sustainable system that can be used on chairs already present in the home. In particular, the proposed solution fuses the data of an accelerometer and a capacitive coupling sensor to understand if a person is sitting or not, discriminating the case of objects left on the chair. The results obtained in a real environment setting show an accuracy of 98.6% and a precision of 95%.
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spelling doaj.art-9055fbb4a2b843d2b3639696934d7d092023-11-23T01:26:01ZengMDPI AGSensors1424-82202021-11-012122758010.3390/s21227580High-Efficiency Multi-Sensor System for Chair Usage DetectionAlessandro Baserga0Federico Grandi1Andrea Masciadri2Sara Comai3Fabio Salice4Department of Physics, Politecnico di Milano, 20133 Milan, ItalyDepartment of Physics, Politecnico di Milano, 20133 Milan, ItalyDepartment of Electronics, Information and Bioengineering, Politecnico di Milano, 20133 Milano, ItalyDepartment of Electronics, Information and Bioengineering, Politecnico di Milano, 20133 Milano, ItalyDepartment of Electronics, Information and Bioengineering, Politecnico di Milano, 20133 Milano, ItalyRecognizing Activities of Daily Living (ADL) or detecting falls in domestic environments require monitoring the movements and positions of a person. Several approaches use wearable devices or cameras, especially for fall detection, but they are considered intrusive by many users. To support such activities in an unobtrusive way, ambient-based solutions are available (e.g., based on PIRs, contact sensors, etc.). In this paper, we focus on the problem of sitting detection exploiting only unobtrusive sensors. In fact, sitting detection can be useful to understand the position of the user in many activities of the daily routines. While identifying sitting/lying on a sofa or bed is reasonably simple with pressure sensors, detecting whether a person is sitting on a chair is an open problem due to the natural chair position volatility. This paper proposes a reliable, not invasive and energetically sustainable system that can be used on chairs already present in the home. In particular, the proposed solution fuses the data of an accelerometer and a capacitive coupling sensor to understand if a person is sitting or not, discriminating the case of objects left on the chair. The results obtained in a real environment setting show an accuracy of 98.6% and a precision of 95%.https://www.mdpi.com/1424-8220/21/22/7580fall detectionchair usageambient assisted livingcapacitive coupling sensoraccelerometer sensorActivities of Daily Living
spellingShingle Alessandro Baserga
Federico Grandi
Andrea Masciadri
Sara Comai
Fabio Salice
High-Efficiency Multi-Sensor System for Chair Usage Detection
Sensors
fall detection
chair usage
ambient assisted living
capacitive coupling sensor
accelerometer sensor
Activities of Daily Living
title High-Efficiency Multi-Sensor System for Chair Usage Detection
title_full High-Efficiency Multi-Sensor System for Chair Usage Detection
title_fullStr High-Efficiency Multi-Sensor System for Chair Usage Detection
title_full_unstemmed High-Efficiency Multi-Sensor System for Chair Usage Detection
title_short High-Efficiency Multi-Sensor System for Chair Usage Detection
title_sort high efficiency multi sensor system for chair usage detection
topic fall detection
chair usage
ambient assisted living
capacitive coupling sensor
accelerometer sensor
Activities of Daily Living
url https://www.mdpi.com/1424-8220/21/22/7580
work_keys_str_mv AT alessandrobaserga highefficiencymultisensorsystemforchairusagedetection
AT federicograndi highefficiencymultisensorsystemforchairusagedetection
AT andreamasciadri highefficiencymultisensorsystemforchairusagedetection
AT saracomai highefficiencymultisensorsystemforchairusagedetection
AT fabiosalice highefficiencymultisensorsystemforchairusagedetection