An AUV (1) according to one embodiment includes: a position detector (9) that detects a position of the position detector (9) relative to an underwater structure (10); a propulsor (22); and control circuitry (7) configured to control the propulsor (22) and grasp a position of the autonomous underwater vehicle (1). Moreover, the AUV (1) includes: an underwater potential sensor that three-dimensionally measures a potential gradient in water; and a metal potential sensor that inspects an electric field producing body that is a part of the underwater structure (10) or a sacrificial anode. The control circuitry (7) specifies a position of the electric field producing body by mapping an underwater electric field from the potential gradient measured by the underwater potential sensor in accordance with movement of the AUV(1). The control circuitry (7) controls the propulsor (22) such that the AUV (1) moves to and stops at an inspection position that is a position at which the metal potential sensor is opposed to the electric field producing body. In this state, the control circuitry (7) makes the metal potential sensor inspect the electric field producing body.
AUTONOMOUS UNMANNED UNDERWATER VEHICLE
AUTONOMES UNBEMANNTES UNTERWASSERFAHRZEUG
VÉHICULE SOUS-MARIN AUTONOME SANS PILOTE
2025-04-16
Patent
Electronic Resource
English
IPC: | B63C LAUNCHING, HAULING-OUT, OR DRY-DOCKING OF VESSELS , Zuwasserlassen, Trockenstellen, Docken oder Bergen von Schiffen / G01N Untersuchen oder Analysieren von Stoffen durch Bestimmen ihrer chemischen oder physikalischen Eigenschaften , INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES |