JAMSTEC has developed a cruising autonomous underwater vehicle (AUV) and a working AUV for observations of carbon dioxide (CO2) in deep sea and explorations of underwater minerals since 2010. This paper concentrates topic on the former AUV. The AUV named JINBEI is 4 meters long and 2 tons in weight. Its propulsion is four rear-thrusters and two mid-ship thrusters with azimuthal control. It has a rear X-ladder. The main sensors for observation are a pH-CO2 hybrid-sensor developed by colleagues, a side-scan sonar, and a multi narrow beam echo sounder. We carried out the first and second sea trials for the system debug and performed function tests in February and March 2012. We obtained an interest CO2 vertical profile data near the sea surface in Sagami-bay. In this fiscal year, Jinbei is in the operation phase.
https://www.semanticscholar.org/paper/D ... bea17b571e
YUMEKA is a deep-sea cruise autonomous underwater vehicle (AUV) being researched and developed by the Japan Agency for Marine-Earth Science and Technology.
An autonomous radio probe to be installed on a new research vessel was completed in April 2012 and scheduled to be completed in the spring of 2016. It was also developed by utilizing research on the autonomous wireless spacecraft "Urashima". It will be mainly used for submarine resource surveys.
Overall length: 5m Overall width: 1.2m Height: 1.2m Maximum underwater weight: 2.7 tons Maximum depth: 3000m Navigation time: 16 hours Speed: 2-3 knots Navigation method: Fully automatic navigation under computer control
https://www.wikipe.wiki/wiki/ja/%E3%82% ... B%E3%81%8B
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