L’actualité des drones

Des drones pour observer les grottes sur Mars et sur la Lune

Un plan 3D d’une grotte en Islande a pu être réalisé grâce à des drones équipés d’un capteur LiDAR. Cette technique pourrait permettre de mettre en place un système semblable pour observer les cavités sur Mars et sur la Lune.

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Drones : la Commission Européenne adopte de nouvelles règles

La Commission Européenne a adopté de nouvelles règles concernant l’usage des drones. L’objectif ? Renforcer la sécurité des vols afin de permettre le développement de ce secteur d'activité et favoriser de ce fait l'acceptabilité sociale de cette technologie.

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Wing-integrated battery pack nearly doubles drone's flight time

We've already heard how batteries that are built into the structure of items – such as cars or satellites – could help extend run times without increasing bulk. Now, the flight time of a drone has been almost doubled, thanks to such "structural batteries."

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Connectivity Tracking Methods for a Network of Unmanned Aerial Vehicles

The communication links shared among a team of Unmanned Aerial Vehicles (UAVs) can be represented as a Laplacian matrix. The second smallest eigenvalue of the matrix, known as algebraic connectivity, is a metric typically used to measure the connectivity of UAVs. Algebraic connectivity represents the robustness of the communication network. For an increasing number of UAV applications, varying levels of connectivity at different points throughout the duration of a mission are needed to meet operational requirements. Thus, the ability to track and obtain a desired connectivity profile over the course of a mission is critical. This work compares four different methods for increasing or decreasing the connectivity for a team of UAVs by adding or removing communication links between UAVs. A connectivity tracking algorithm was developed using these methods to track a profile of varying connectivity over time and an analysis of the results is provided.

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