Toshihiro Maki

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Autonomous underwater vehicles (AUV) are suitable for condition survey of artificial structures such as pillars and caissons in harbors. This paper describes a method to trace the structure's surface using a light-section profiling system. This profiling system determines the continuous shape of the target objects over a wide area by the light sectioning(More)
Autonomous Underwater Vehicles (AUVs) are suitable for underwater observation, since they can swim freely without an umbilical cable. This paper proposes a robust navigation method for AUVs operating around artificial structures such as piers, quays and breakwaters. This method consists of a State Estimator and a Guidance System, enabling localization in(More)
Autonomous underwater vehicles (AUVs) are suitable for condition survey of the surface of artificial structures such as pillars and caissons in harbors. This paper introduces a method for AUVs to trace artificial structures using a light-section ranging system. This system acquires the profile of the target objects over a wide area using a sheet laser beam.(More)
We report the first experimental results of the navigation method of multiple Autonomous Underwater Vehicles (AUVs) for wide seafloor surveys proposed by us in our previous reports. The key idea of the proposed method is that moving AUVs estimate their states (horizontal position and heading angle) based on AUVs remaining stationary on the seafloor(More)
On Kanda port construction in Fukuoka prefecture, no fewer than 2,800 harmful chemical bombs have been discovered beneath the sea bottom so far. In advance of dredging in the port, we have carefully carried out magnetic inspection for looking for chemical bombs. Since a true target often gets mixed in a lot of suspicious metallic objects, we must cautiously(More)
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