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A lightweight method for detecting sleep-related activities based on load sensing
Högskolan i Halmstad, Akademin för informationsteknologi, Halmstad Embedded and Intelligent Systems Research (EIS), Inbyggda system (CERES).ORCID-id: 0000-0001-6708-0816
Högskolan i Halmstad, Akademin för informationsteknologi, Halmstad Embedded and Intelligent Systems Research (EIS), CAISR Centrum för tillämpade intelligenta system (IS-lab).ORCID-id: 0000-0002-4143-2948
2014 (Engelska)Ingår i: SeGAH 2014: IEEE 3rd International Conference on Serious Games and Applications for Health, Red Hook, NY: Curran Associates, Inc., 2014, artikel-id 7067080Konferensbidrag, Publicerat paper (Refereegranskat)
Abstract [en]

Current practices in healthcare rely on expensive and labor-intensive procedures that are not adequate for future healthcare demands. Therefore, alternatives are required to complement or enhance healthcare services, both at clinical and home settings. Hospital and ordinary beds can be equipped with load cells to enable load sensing applications, such as for weight and sleep assessment. Beds with such functionalities represent a tangible alternative to expensive and obtrusive routines for sleep assessment, such as polysomnography. A finite-state machine is proposed as a lightweight on-line method to detect sleep-related activities, such as bed entrances and exits, awakenings, wakefulness, and sleep atonia. The proposed approach is evaluated with a dataset collected in real homes of older people receiving night-time home care services.

Ort, förlag, år, upplaga, sidor
Red Hook, NY: Curran Associates, Inc., 2014. artikel-id 7067080
Nyckelord [en]
Healthcare technology, home monitoring, sensor-based monitoring systems, load sensing, sleep assessment, state machines, bed-exit alarms
Nationell ämneskategori
Elektroteknik och elektronik Omvårdnad
Identifikatorer
URN: urn:nbn:se:hh:diva-26239DOI: 10.1109/SeGAH.2014.7067080ISI: 000393517600011Scopus ID: 2-s2.0-84988259056ISBN: 978-1-4799-4823-9 (tryckt)OAI: oai:DiVA.org:hh-26239DiVA, id: diva2:737569
Konferens
IEEE 3rd International Conference on Serious Games and Applications for Health (SeGAH 2014), Rio de Janeiro, Brazil, May 14-16, 2014
Tillgänglig från: 2014-08-13 Skapad: 2014-08-13 Senast uppdaterad: 2017-03-22Bibliografiskt granskad
Ingår i avhandling
1. Architecting Smart Home Environments for Healthcare: A Database-Centric Approach
Öppna denna publikation i ny flik eller fönster >>Architecting Smart Home Environments for Healthcare: A Database-Centric Approach
2015 (Engelska)Doktorsavhandling, sammanläggning (Övrigt vetenskapligt)
Abstract [en]

The development of system architectures and applications for smart homes and ambient assisted living has been the main activity of a number of academic and industrial research projects around the world. Existing system architectures for smart environments usually employ different architectural styles in a multi-layer logical architecture to support the integration and interoperation of heterogeneous hardware and software technologies, which are subsequently used to provide two major functionalities: monitoring and assistance. It is also usual among existing architectures that the database management system is the most common but the least exploited architectural component, existing in the periphery of the system and devoted exclusively for data storage and retrieval. However, database technology has advanced and matured considerably over the years, and, as a result, current database management systems can be and do more.

This thesis considers the hypothesis of several features of modern database management systems being employed to address functional (e.g. well-being and security monitoring, automated control, data processing) and non-functional (e.g. interoperability, extensibility, data security and privacy) requirements of smart environments, i.e. the database management system serves as a platform for smart environments. The scope of this thesis is therefore to investigate the possibility of using different features supported by database management systems to create a database-centric system architecture for the development of smart home environments and ambient assisted living. The thesis also investigates the development of applications for health monitoring and assistance: 1) a serious game for fall prevention that assists people in practicing Tai Chi at home, and 2) a non-intrusive home-based method for sleep assessment.

These features are explored in this thesis to address general functional aspects of smart environments, such as monitoring, processing, coordination and control of various types of events in a given environment. Extensibility and security features and cross-platform capabilities of database management systems are employed to accommodate non-functional, but still technical, properties of smart environments, including interoperability, extensibility, portability, scalability, security and privacy. Heterogeneous technologies are integrated into the system using programming language and platform independent software resource adapters. Interoperation among integrated technologies is mediated in an active database.

The feasibility of the proposed database-centric system architecture was pragmatically investigated with the development of a "smart bedroom'' demonstrator and with the implementation of a number of short-term and long-term types of services to support active aging, aging in place and ambient assisted living. In the proposed architecture, active in-database processing maintains sensitive data within the database. This increases data security and independence from external software applications for data analysis. Changes in the system are managed during runtime, which improves flexibility and avoids system downtime. The proposed system architecture was evaluated taking into account different application scenarios and heterogeneous computing platforms.

As a conclusion, modern database management systems support features that can be successfully employed in a database-centric system architecture to effectively and efficiently address functional and non-functional requirements of smart environments.

Ort, förlag, år, upplaga, sidor
Halmstad: Halmstad University Press, 2015. s. 50
Serie
Halmstad University Dissertations ; 15
Nyckelord
Smart environments, system architectures, active databases, in-database processing, ambient assisted living
Nationell ämneskategori
Elektroteknik och elektronik
Identifikatorer
urn:nbn:se:hh:diva-29227 (URN)978-91-87045-33-2 (ISBN)978-91-87045-32-5 (ISBN)
Disputation
2015-09-16, Wigforssalen, Visionen, Kristian IV:s väg 3, Halmstad, 13:00 (Engelska)
Opponent
Handledare
Forskningsfinansiär
KK-stiftelsen
Tillgänglig från: 2015-08-19 Skapad: 2015-08-18 Senast uppdaterad: 2017-05-16Bibliografiskt granskad

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Ourique de Morais, WagnerWickström, Nicholas

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Ourique de Morais, WagnerWickström, Nicholas
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Inbyggda system (CERES)CAISR Centrum för tillämpade intelligenta system (IS-lab)
Elektroteknik och elektronikOmvårdnad

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