A pervasive assistive environment for visually impaired people using wireless sensor network infrastructure

dc.contributor.author	Μπιτζιόπουλος, Αριστείδης	el
dc.contributor.author	Κωνσταντόπουλος, Χαράλαμπος	el
dc.contributor.author	Γαβαλάς, Δαμιανός	el
dc.contributor.author	Πάντζιου, Γραμματή Ε.	el
dc.date.accessioned	2015-05-23T15:23:22Z
dc.date.available	2015-05-23T15:23:22Z
dc.date.issued	2015-05-23
dc.identifier.uri	http://hdl.handle.net/11400/10989
dc.rights	Αναφορά Δημιουργού-Μη Εμπορική Χρήση-Όχι Παράγωγα Έργα 3.0 Ηνωμένες Πολιτείες	*
dc.rights.uri	http://creativecommons.org/licenses/by-nc-nd/3.0/us/	*
dc.source	http://www.sciencedirect.com/science/article/pii/S1084804510001396	en
dc.subject	Ασύρματα δίκτυα αισθητήρων
dc.subject	Διαδρομές
dc.subject	Υποστηρικτικά περιβάλλοντα
dc.subject	Wireless sensor networks
dc.subject	Itineraries
dc.subject	Assistive environments
dc.title	A pervasive assistive environment for visually impaired people using wireless sensor network infrastructure	en
heal.type	journalArticle
heal.classification	Πληροφορική
heal.classification	Μηχανική υπολογιστών
heal.classification	Computer science
heal.classification	Computer engineering
heal.classificationURI	N/A-Πληροφορική
heal.classificationURI	N/A-Μηχανική υπολογιστών
heal.classificationURI	http://skos.um.es/unescothes/C00750
heal.classificationURI	http://id.loc.gov/authorities/subjects/sh85029495
heal.keywordURI	http://id.loc.gov/authorities/subjects/sh2008004547
heal.identifier.secondary	DOI: 10.1016/j.jnca.2010.07.017
heal.language	en
heal.access	campus
heal.recordProvider	Τεχνολογικό Εκπαιδευτικό Ίδρυμα Αθήνας. Σχολή Τεχνολογικών Εφαρμογών. Τμήμα Μηχανικών Πληροφορικής Τ.Ε.	el
heal.publicationDate	2011-01
heal.bibliographicCitation	Mpitziopoulos, A., Konstantopoulos, C., G., Gavalas, D. and Pantziou, G. (2011) A pervasive assistive environment for visually impaired people using wireless sensor network infrastructure. Journal of Network and Computer Applications. [Online] 34 (1). pp.194-206. Available from: http://www.sciencedirect.com [Accessed 23/05/2015]	en
heal.abstract	Wireless sensor networks (WSNs) have been identified as a promising technology for supporting assistive environments. This article introduces PROTECT, a system that employs autonomous software objects referred to as mobile agents (MAs) able of locating and informing visually impaired persons for potential risks. PROTECT utilizes a 3-tier architecture where the first tier comprises a base station (BS), the second tier mobile sinks (MS) (carried by blind people on their sticks) and the third tier stationary sensor nodes. This WSN is deployed in an urban environment. In the event of an alarm issued by a sensor node, the BS launches a number of MAs supplied with a near-optimal itineraries that visit the nodes in the alarm's surrounding area and notifies, through Wi-Fi (IEEE 802.11), visually impaired people for potential hazards in their proximity. In the event of communication problems (e.g. failure of some sensor nodes) PROTECT modifies the itineraries of the MAs to bypass the problematic areas avoiding disruption of the data collection process from working sensors. Simulation results confirm the high effectiveness of our proposed scheme in WSNs used in assistive environments and its performance gain over alternative MA-based approaches proposed for data fusion tasks.	en
heal.publisher	Elsevier	en
heal.journalName	Journal of Network and Computer Applications	en
heal.journalType	peer-reviewed
heal.fullTextAvailability	true