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Article Dans Une Revue Sensors Année : 2022

A Dynamically Reconfigurable Autonomous Underwater Robot for Karst Exploration: Design and Experiment

Benoît Ropars
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Guillaume Gourmelen

Résumé

This paper presents the design and experiment of an autonomous underwater robot which can change the geometric configuration of its actuators, according to mission requirements or environmental constraints. The robot consists of two subsystems: forward part with three thrusters and backward part with four thrusters. The position and orientation of these thrusters can be dynamically changed during missions. Being different from most of other reconfigurable underwater robots which were designed as linked-modules, our robot has a unified design. It is suitable for specific mission in confined environments (e.g., karst exploration) in which the robot has to modify its shape to go through a narrow section or align the most part of its thrusters in the direction of a strong current, for examples. The design procedure, from hardware to software, of the robot is presented and experimental results are shown to demonstrate the versatility of the robot. Furthermore, the discussion and comparison between our robot and other underwater robots with adaptable actuation geometry are presented to highlight advantages of our design. Finally, the idea of using our robot for classic docking problem, which has some common features with karst exploration requirements in using dynamically reconfigurable robots, is discussed.
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hal-03929843 , version 1 (09-01-2023)

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Huu-Tho Dang, Lionel Lapierre, René Zapata, Benoît Ropars, Guillaume Gourmelen. A Dynamically Reconfigurable Autonomous Underwater Robot for Karst Exploration: Design and Experiment. Sensors, 2022, 22 (9), pp.3379. ⟨10.3390/s22093379⟩. ⟨hal-03929843⟩
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