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Articoli di riviste sul tema "Dispositifs aériens sans pilote"
Facon, Déborah. "Mixité sociale et scolaire : outil d’observation pour la politique de la ville". Diversité 199, n. 1 (2020): 114–17. http://dx.doi.org/10.3406/diver.2020.4951.
Testo completoAgili, Hachem, Sylvie Daniel e Karem Chokmani. "Revue des méthodes de prétraitement des données d'imagerie hyperspectrale acquises depuis un drone". GEOMATICA 68, n. 4 (dicembre 2014): 331–43. http://dx.doi.org/10.5623/cig2014-407.
Testo completoNgabinzeke, Jean Semeki, Julie Linchant, Samuel Quevauvillers, Jean-Marie Kahindo Muhongya, Philippe Lejeune e Cédric Vermeulen. "Potentiel des véhicules aériens sans pilote dans la détection des activités humaines illégales dans les aires protégées en République Démocratique du Congo". Journal of Unmanned Vehicle Systems 4, n. 2 (giugno 2016): 151–59. http://dx.doi.org/10.1139/juvs-2015-0035.
Testo completoFeurer, Denis, Mohamed Amine El Maaoui, Mohamed Rached Boussema e Olivier Planchon. "Méthode opérationnelle de production d'orthophotos et de MNT décimétriques à l'échelle du kilomètre carré par cerf-volant". Revue Française de Photogrammétrie et de Télédétection, n. 213 (26 aprile 2017): 43–53. http://dx.doi.org/10.52638/rfpt.2017.190.
Testo completoAllaire, François Charles Joseph, Gilles Labonté, Vincent Roberge e Mohammed Tarbouchi. "Point de référence pour la planification de trajectoires d’UAV à voilure fixe". Journal of Unmanned Vehicle Systems, 8 ottobre 2020, 1–12. http://dx.doi.org/10.1139/juvs-2019-0022.
Testo completoAlsmadi, Hamzih, Huda Alsheyab, Malek Alsmadi, Emad Mohammed, Yazan Alomari e Salama Ikki. "Less Complex and Higher Spectral Efficiency Resource Allocation Algorithm for Unmanned Aerial Vehicles Networks Algorithme d’allocation de ressources moins complexe et plus efficace sur le plan spectral pour les réseaux de véhicules aériens sans pilote". IEEE Canadian Journal of Electrical and Computer Engineering, 2022, 1–6. http://dx.doi.org/10.1109/icjece.2022.3178033.
Testo completoPastra, Aspasia, Tafsir Johansson, Herbert Francke e Dimitrios Dalaklis. "BUGWRIGHT2 remote inspection techniques in medium and small-sized Scandinavian ports". Les Cahiers Scientifiques du Transport - Scientific Papers in Transportation 82 | 2024 - Ports... (15 novembre 2024). http://dx.doi.org/10.46298/cst.12547.
Testo completoTesi sul tema "Dispositifs aériens sans pilote"
Bouassida, Sana. "Optimisation multi-objectif des flux de circulation routière en abord d'intersection". Electronic Thesis or Diss., université Paris-Saclay, 2024. https://www.biblio.univ-evry.fr/theses/2024/interne/2024UPAST194.pdf.
Testo completoRoad congestion in Tunisia, particularly in major cities, is becoming an increasingly critical issue, exacerbated during the summer months by the influx of tourists. Approximately 30% of urban travel is affected, leading to longer travel times, higher energy consumption, and increased safety risks. In response to these challenges, infrastructure modernization efforts aim to enhance the interaction between roads, drivers, and vehicles. However, current traffic management methods, such as smart traffic lights and radar systems, show significant limitations, particularly in terms of spatial and temporal coverage. Additionally, while driver assistance systems and Intelligent Transport Systems (ITS) have reduced accidents, their perception capabilities remain limited, especially in complex environments.This thesis proposes an innovative solution for traffic management through the use of drones. Unlike traditional vehicle sensors, drones provide wide and continuous perception, with the mobility to cover large areas. Already utilized in agriculture, the military, and logistics, drones are envisioned here as tools for monitoring and managing intersections, level crossings, and high-traffic density zones. Equipped with advanced intelligence, the drone considered in this thesis can make autonomous decisions and relay real-time, accurate information to ground vehicles, thus enhancing traffic safety and energy efficiency.The first part of this study focuses on the impact of drone alert systems, particularly in critical situations such as approaching pedestrian crossings or intersections, under various weather conditions and road types. The results indicate that drones, by providing real-time information, offer more precise data than traditional systems, aiding decision-making for both drivers and autonomous vehicles. This approach also highlights the importance of optimizing the alerts transmitted by drones to ensure appropriate reactions to specific traffic conditions.The second part of the thesis addresses the formulation of optimization problems based on the information perceived by drones. These problems aim to improve traffic flow, energy consumption, and safety through a multi-objective optimization approach, incorporating drone data into centralized management systems. A comparison between centralized drone-based management and the sequential approach of autonomous vehicles was conducted. The results show that the centralized drone approach is more effective, particularly in terms of decision acceptance time and traffic improvement. Simulations confirm that drones enable more precise and responsive management at intersections.This study contributes to the design of intelligent intersections by offering recommendations based on simulation results. Drones are particularly effective in managing complex situations, such as sharp turns or adverse weather conditions, where traditional systems and autonomous vehicles encounter limitations. With their expanded perception and real-time decision-making capabilities, drones represent a key tool for enhancing road safety and optimizing traffic flow.Integrating drones into traffic management presents significant advantages, particularly in complex environments and high-density areas, such as major Tunisian cities. Their continuous and extensive perception, combined with advanced intelligence, improves the safety and energy efficiency of travel. This thesis demonstrates that drones can overcome the limitations of current systems, offering a more intelligent and responsive approach to traffic management
Ma, Xiaoyan. "Data collection of mobile sensor networks by drones". Phd thesis, Toulouse, INPT, 2017. http://oatao.univ-toulouse.fr/19492/1/MA_Xiaoyan.pdf.
Testo completoSaif, Osamah. "Reactive navigation of a fleet of drones in interaction". Thesis, Compiègne, 2016. http://www.theses.fr/2016COMP2269/document.
Testo completoNowadays, applications of autonomous quadrotors are increasing rapidly. Surveillance and security of industrial sites, geographical zones for agriculture for example are some popular applications of Unmanned Aerial Vehicles (UAVs). Nowadays, researchers and scientists focus on the deployment of multi-UAVs for the inspection and the surveillance of large areas. The objective of this thesis is to design algorithms and techniques to perform a real-time distributed/decentralized multi-UAVs flight formation control, from a system of systems perspective. Firstly, we reviewed recent works of the literature about flight formation control and the control of quadrotors. We presented a brief introduction about systems of systems, their definition and characteristics. Then, we introduced the flight formation control with its most used structures in the literature, some existing works dealing with flocking. Finally, we presented the most used modeling methodologies for quadrotors and some control approaches that are used to stabilize quadrotors. Secondly, we used the behavioral-based control structure to achieve a multiple UAV flocking. We conceived a behavior intending to address the control design towards a successful achievement of the flocking task without fragmentation. The proposed behavior treats the flocking problem from a global perspective, that is, we included a tendency of separated UAVs to form a flock.System of systems challenges motivated us to look for flocking and consensus algorithms introduced in the literature that could be helpful to answer to these challenges. This led us to propose four flocking control laws aiming at being compatible with the nonlinear model of quadrotors and at being implemented on experimental platforms. The control laws were run aboard each quadrotor in the flock. By running the control law, each quadrotor interacts with its neighbors to ensure a collision-free flocking. Finally, we validated our proposed control laws by simulations and real-time experiments. For the simulation, we used a PC-based simulator of flock of multiple quadrotors which was developed at Heudiasyc laboratory. For experiments, we implemented our control laws on ArDrone2 quadrotors evolved in an indoor environment equipped with an Optitrack motion capture system