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There are concerns about the impact that global warming will have on our environment, and which will inevitably result in expanding deserts and rising water levels. AUVs (autonomous underwater vehicle) were considered and chosen, as the most suitable tool for conduction survey concerning these global environmental problems. JAMSTEC has started to build a long range cruising AUV. The plan for its development...
Japan Agency for Marine-earth Science and Technology (JAMSTEC) launched an ocean-going autonomous underwater vehicle (AUV) "URASHIMA" which has been studied and developed the key technologies since 2000. The navigation and research abilities were verified by the past sea test. AUV will be put to practical use in 2009. Therefore, it is important to advance the practical operability of AUV...
JAMSTEC has developed the two types of underwater vehicle since 2005: an ROV to the oceans' deepest depth called ASSS11k (advanced sediment sampling system to 11,000 meter) and a hybrid underwater vehicle for use in shallow-water to mid-depth zones named PICASSO (Plankton Investigatory Collaborating Autonomous Survey System Operon). The most important purpose of the ASSS11k is to get a lot of mud...
An autonomous underwater vehicle (AUV) is equipped with an inertial navigation system (INS) in order to understand its own position in real time while it cruises without the communication with the external environment such as a support ship and GPS. Japan Agency for Marine-Earth Science and Technology has the cruising AUV URASHIMA, and it is also equipped with the INS. However the INS outputs its...
An Autonomous Underwater Vehicle (AUV) is equipped with an Inertial Navigation System (INS) in order to detect its own current position for the autonomous cruise. It has a sensor part and an arithmetical part. The sensor part is composed of three gyros and three accelerometers, and the three-dimensional coordinate system (INS coordinate system) is defined in the arithmetical part. And an accelerometer...
Energy storage is one of the key technology for underwater vehicles. Many kind of batteries have been developed for underwater systems. An ocean-going autonomous underwater vehicle powered by a polymer electrode membrane fuel cell system was completed by Japan Agency for Marine-Earth Science and Technology. The fuel cell system generates 4 kW of electric power for the control electronics and propulsion...
Japan Agency for Marine-Earth Science and Technology (JAMSTEC) has advanced the development of an ocean going Autonomous Underwater Vehicle (AUV). Technical problem on an AUV is to develop instruments for highly accurate positioning, an efficient power source and digital telemetry in the sea. The AUV in JAMSTEC has accurate positioning system, fuel cell and digital telemetry. Sea test started in 2000,...
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