Results 261 to 270 of about 19,016 (312)

Optimality for underwater vehicle's

Proceedings of the 40th IEEE Conference on Decision and Control (Cat. No.01CH37228), 2002
We study the time-optimal trajectories for fully actuated planar underwater vehicles, with constraints on input forces. Using the maximum principle, we focus on the structure of singular extremals and their possible optimality.
Monique Chyba, Naomi Ehrich Leonard, Eduardo D. Sontag   +2 more
openaire   +1 more source

Avoidance of underwater cliffs for autonomous underwater vehicles

IEEE/RSJ International Conference on Intelligent Robots and System, 2003
This paper introduces a method aiming to allow underactuated autonomous underwater vehicles navigating in an unknown environment to avoid underwater cliffs. Three electro-acoustic transducers situated in the front part of the vehicle provide bathymetric data.
Creuze, Vincent, Jouvencel, Bruno
openaire   +2 more sources

An autonomous underwater vehicle for competition

2012 First National Conference for Engineering Sciences (FNCES 2012), 2012
The research of this paper was derived from the small autonomous underwater vehicle (AUV)Raider well performed in the 15th International Underwater Vehicle Competition (IAUVC),San Diego. In order to improve the performance of underwater vehicle, the control system of performance motion played an important role on autonomous underwater vehicles stable ...
Hai Tian, Bo Hu, Can Yu Liu, Guo Chao Xie, Hui Min Luo   +4 more
openaire   +1 more source

Framework for Combining Multiple Lightweight Underwater Vehicles into Super Underwater Vehicle

2020 IEEE/OES Autonomous Underwater Vehicles Symposium (AUV)(50043), 2020
This paper investigates the potential of using multiple, rigidly interconnected lightweight underwater vehicles (LUVs) as a cheaper alternative to using a single vehicle for mapping and monitoring. The objective is to develop a prototype super underwater vehicle (SUV) demonstrating the proficiency of the multi-vehicle approach.
Havard Snefjella Lovas, Asgeir J. Sorensen, Martin Ludvigsen   +2 more
openaire   +1 more source

Underwater Robots: From Remotely Operated Vehicles to Intervention-Autonomous Underwater Vehicles

IEEE Robotics & Automation Magazine, 2019
Remotely operated vehicles (ROVs) revolutionized the subsea industry when they were introduced in the 1960s. They were more powerful and inherently safer, and they could go deeper than divers. However, they require a tether and a support ship, which makes their use complex and expensive.
Yvan R. Petillot, Gianluca Antonelli, Giuseppe Casalino, Fausto Ferreira   +3 more
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Underwater floor pattern matching with an unmanned underwater vehicle

2015 12th International Conference on Ubiquitous Robots and Ambient Intelligence (URAI), 2015
The localization of unmanned underwater vehicle (UUV) is important for the UUV to inspect or manipulator objects. We assume that there is an UUV with a camera sensor and the UUV uses the underwater floor pattern for localization. Because the pattern is known beforehand, the pattern matching between the pattern image and the camera image lets the UUV ...
Jung-Tae Kim, Hyung-Joo Kang, Min-Kyu Kim, Sung-Mun Hong, Ji-Hong Li, Min-Jae Kim   +5 more
openaire   +1 more source

Autonomous underwater vehicles localisation in mobile underwater networks

International Journal of Sensor Networks, 2017
Autonomous underwater vehicles AUVs form mobile underwater networks to conduct underwater surveying missions cooperatively. Due to the severe turbulence caused by water currents, individual AUV has to adjust its heading constantly to ensure reaching destination.
Xiaohui Wei 0002, Xingwang Wang 0003, Xin Bai 0004, Sen Bai, Jun Liu 0006   +4 more
openaire   +1 more source

Safety Aspects for Underwater Vehicles

2010
Advances in technologies related to miniature sensors, memories, embedded controllers, power systems and materials has resulted in development of variety of autonomous underwater platforms for ocean exploration. The future in oceanographic instrumentation is intelligent small Autonomous Underwater Vehicles (AUV’s), autonomous profilers, gliders [1 ...
Madhan, R., Navelkar, G.S., Desa, E.S., Afzulpurkar, S., Prabhudesai, S.P., Dabholkar, N., Mascarenhas, A.A.M.Q., Maurya, P.   +7 more
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An optimal indirect control of underwater vehicle

International Journal of Control, 2019
This paper considers a new problem of control related to underwater vehicles. Due to the presence of a free fluid surface and to the vortex shedding of the vehicle lifting surfaces, the mathematical model is represented by an integral-differential equation.
Elena Paifelman, Gianluca Pepe, Antonio Carcaterra   +2 more
openaire   +3 more sources

On controlling aircraft and underwater vehicles

IEEE International Conference on Robotics and Automation, 2004. Proceedings. ICRA '04. 2004, 2004
In this paper we make the important observation that the attitude and angular velocity control systems for gas-jet aircraft and underwater vehicles are of a special form: they are affine control systems with constant control distributions and multi-affine drifts.
openaire   +1 more source