Gestion et surveillance d'un réseau sans fil de noeuds de capteurs dans le Nord

Authors: Paradis, Guillaume
Advisor: Rusch, LeslieFortier, Paul
Abstract: Climate change greatly affects the climate all over the planet, but especially in northern areas, where permafrost is slowly thawing. Researchers are therefore trying to track changes in these areas using sampling sensors and saving the data locally. However, retrieving this data is very costly in travel and time given the isolation of the villages where these sensors are located. Wireless networks of sensor nodes are a possible solution to this problem. The idea is therefore to send this data automatically to researchers at Université Laval. In 2017, a first wireless network of sensor nodes was installed in the village of Salluit, in Northern Quebec, using already existing collection stations. The installation experienced several data transfer and collection issues since its deployment. In this thesis, we examine these failures in connectivity. Their origins have been difficult to determine since the nodes does not allow good monitoring of their state. This led to some uncertainty in our determination of all causes of failure. For this reason, we also propose a new architecture to better diagnose any future problems of the sensor nodes. This architecture shifts various functions currently performed by the sensor in Salluit's network to the wireless interface to allow more individualized diagnosis of the wireless interface and the sensor. This thesis therefore begins by detailing the operation of data collection networks. It then presents the Salluit facilities and analyze the energy capacities of the network's collection nodes. Thereafter, it proposes an architecture able to respond to the shortcomings of the Salluit network. Then, the thesis details an implementation of the collection node of this proposed architecture.
Document Type: Mémoire de maîtrise
Issue Date: 2021
Open Access Date: 7 June 2021
Grantor: Université Laval
Collection:Thèses et mémoires

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