Fecha de publicación: 26/03/2021 Fuente: Wipo "precision agriculture" In this work, we have proposed a fault tolerance solution for Large-scale wireless sensor arrays in the context of a precision agriculture application. We first proposed a scenario for the deployment of AWSNs for this application using thousands of sensor nodes and relay nodes. These the latter are deployed so as to form regular hexagons. Then, we proposed the SFR-RNR solution (Simultaneous Failure Recovery based on Relay Node Relocation) for the resolution of this problem. This solution uses a redeployment strategy of a number of relay nodes in the damaged area so as to restore connectivity and partially the cover. Finally, we evaluated the performance of our approach proposed by simulation. The performance results associated with our large-scale solution show that the number of relay nodes redeployed following the occurrence of a failure is slightly influenced by the extent of the damaged area. This shows that our solution fits fine to large networks.