Impacts of wireless sensor networks strategies and topologies on prognostics and health management

Ahmad Farhat (), Christophe Guyeux, Abdallah Makhoul, Ali Jaber, Rami Tawil and Abbas Hijazi
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Ahmad Farhat: Université de Bourgogne Franche-Comté
Christophe Guyeux: Université de Bourgogne Franche-Comté
Abdallah Makhoul: Université de Bourgogne Franche-Comté
Ali Jaber: Lebanese University
Rami Tawil: Lebanese University
Abbas Hijazi: Lebanese University

Journal of Intelligent Manufacturing, 2019, vol. 30, issue 5, No 5, 2129-2155

Abstract: Abstract In this article, we used wireless sensor network (WSN) techniques for monitoring an area under consideration, in order to diagnose its state in real time. What differentiates this type of network from the traditional computer ones is that it is composed by a large number of sensor nodes having very limited and almost nonrenewable energy. A key issue in designing such networks is energy conservation because once a sensor depletes its resources, it will be dropped from the network. This will lead to coverage hole and incomplete data arriving to the sink. Therefore, preserving the energy held by the nodes so that the network keeps running for as long as possible is a very important concern. If we achieve to improve the network lifetime and Quality of Service (QoS). Diagnosing the state of area will be more accurate for a longer time. One of the most important elements to achieve a QoS in WSN is the network coverage which is usually interpreted as how well the network can observe a given area. Obviously, if the coverage decreases over time, the diagnosis quality decreases accordingly. Various coverage strategies are thus proposed by the WSN community, in order to guarantee a certain coverage rate as long as possible, to reach a certain QoS that in turn will impact the diagnosis and prognostic quality. Various other strategies are in common use in WSN like data aggregation and scheduling, to preserve a QoS in wireless sensor networks, as long as possible. We argue that such strategies are not neutral if this network is used for prognostic and health management. Some politics may have a positive impact while other ones may blur the sensed data, like data aggregation or redundancy suppression, leading to erroneous diagnostics and/or prognostics. In this work, we will show and measure the impact of each WSN strategy on the resulting estimation of diagnostics. We emphasized several issues and studied various parameters related to these strategies that have a very important impact on the network, and therefore on data diagnostics over time. To reach this goal, to evaluate both prognostic and health management with the WSN strategies, we have used six diagnostic algorithms.

Keywords: Wireless sensor networks; Coverage; Scheduling mechanisms; Topology; Prognostic and health management; Diagnostics; Machine learning algorithms (search for similar items in EconPapers)
Date: 2019
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DOI: 10.1007/s10845-017-1377-4

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