The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
The hovering type AUV Tri-TON 2 was developed by the Institute of Industrial Science, The University of Tokyo in 2013. The AUV was constructed as a test bed for a national project to develop instruments to estimate ore reserves in underwater hydrothermal deposits. In order to estimate its position and orientation in real time, the AUV uses a SBL-based acoustic localization device instead of a conventional...
The currents measured by a SonTek Acoustic Doppler Current Profiler (ADCP) mounted on an Iver2 Autonomous Underwater Vehicle (AUV) are compared to those measured by a bottom-mounted Acoustic Wave and Current Meter (AWAC), taken as a reference, in an attempt to evaluate the AUV's performance as a current meter instrument. In October 2013, the AUV performed 3 short missions navigating over the AWAC...
This work deals with the design of the propulsion system of a modular AUV (Autonomous Underwater Vehicle) considering different kinds of electrical propulsion systems. In particular, the authors introduce the design criteria followed for the preliminary testing activities and the methodologies adopted for fast testing and prototyping of the proposed solutions. This is a quite important topic considering...
This work takes place in the framework of the EU FP7 funded ARROWS project. In ARROWS project, low-cost autonomous underwater vehicle technologies are adapted and developed to significantly reduce the costs of underwater archaeological operations, covering the full extent of archaeological campaign. The project aims to deal with underwater mapping, diagnosis and cleaning tasks. This paper, specifically,...
The algorithms of autonomous underwater vehicle /AUV/ motion detection and near the bottom stabilization based on stereoscopic images processing are considered in the paper. The approach is based on detection of the same objects on the consecutive frames and their joint displacement calculation. Some results of the real underwater image processing and considered algorithms operation onboard of small...
This paper deals with the history of Japan's Underwater Robot Competitions and its future prospects. In Japan, an underwater robot festival was first held in October 2006. At present, such competitions take place twice a year in the Tokyo and Kobe/Kita-Kyushu areas. The AUV division sets various missions such as line-tracking, buoy-touching and designated-area landing. The mission of the Free-style...
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.