TY - JOUR
AU1 - Lwin, Khin
AU2 - Mukada, Naoki
AU3 - Myint, Myo
AU4 - Yamada, Daiki
AU5 - Minami, Mamoru
AU6 - Matsuno, Takayuki
AU7 - Saitou, Kazuhiro
AU8 - Godou, Waichiro
AB - Nowadays, autonomous underwater vehicle (AUV) is playing an important role in human society in different applications such as inspection of underwater structures (dams, bridges). It has been desired to develop AUVs that can work in a sea with a long period of time for the purpose of retrieving methane hydrate, or rare metal, and so on. To achieve such AUVs, the automatic recharging capability of AUVs under the sea is indispensable and it requires AUVs to dock itself to recharging station autonomously. Therefore, we have developed a stereo-vision-based docking methodology for underwater battery recharging to enable the AUV to continue operations without returning surface vehicle for recharging. Since underwater battery recharging units are supposed to be installed in a deep sea, the deep-sea docking experiments cannot avoid turbidity and low-light environment. In this study, the proposed system with a newly designed active—meaning self-lighting—3D marker has been developed to improve the visibility of the marker from an underwater vehicle, especially in turbid water. Experiments to verify the robustness of the proposed docking approach have been conducted in a simulated pool where the lighting conditions change from day to night. Furthermore, sea docking experiment has also been executed to verify the practicality of the active marker. The experimental results have confirmed the effectiveness of the proposed docking system against turbidity and illumination variation.
TI - Docking at pool and sea by using active marker in turbid and day/night environment
JF - Artificial Life and Robotics
DO - 10.1007/s10015-018-0442-1
DA - 2018-06-16
UR - https://www.deepdyve.com/lp/springer-journals/docking-at-pool-and-sea-by-using-active-marker-in-turbid-and-day-night-tbVLel6bLs
SP - 409
EP - 419
VL - 23
IS - 3
DP - DeepDyve
ER -