Visual-based deep sea docking simulation of underwater vehicle using dual-eyes cameras with lighting adaptation

2016 ◽  
Author(s):  
Myo Myint ◽  
Kenta Yonemori ◽  
Akira Yanou ◽  
Khin Nwe Lwin ◽  
Mamoru Minami ◽  
...  
Keyword(s):  
Deep Sea ◽  
Docking Simulation ◽  
Underwater Vehicle

scholarly journals Adenosine Triphosphate Measurement in Deep Sea Using a Microfluidic Device

Micromachines ◽  
2018 ◽  
Vol 9 (8) ◽  
pp. 370 ◽  
Author(s):  
Tatsuhiro Fukuba ◽  
Takuroh Noguchi ◽  
Kei Okamura ◽  
Teruo Fujii
Keyword(s):  
Adenosine Triphosphate ◽  
Microfluidic Device ◽  
Deep Sea ◽  
Temperature Sensor ◽  
Biochemical Parameter ◽  
Underwater Vehicle ◽  
Luciferase Assay ◽  
Bioluminescence Intensity

Total ATP (adenosine triphosphate) concentration is a useful biochemical parameter for detecting microbial biomass or biogeochemical activity anomalies in the natural environment. In this study, we describe the development and evaluation of a new version of in situ ATP analyzer improved for the continuous and quantitative determination of ATP in submarine environments. We integrated a transparent microfluidic device containing a microchannel for cell lysis and a channel for the bioluminescence L–L (luciferin–luciferase) assay with a miniature pumping unit and a photometry module for the measurement of the bioluminescence intensity. A heater and a temperature sensor were also included in the system to maintain an optimal temperature for the L–L reaction. In this study, the analyzer was evaluated in deep sea environments, reaching a depth of 200 m using a remotely operated underwater vehicle. We show that the ATP analyzer successfully operated in the deep-sea environment and accurately quantified total ATP within the concentration lower than 5 × 10−11 M.

scholarly journals Erratum to: Enhancement of deep-sea floor images obtained by an underwater vehicle and its evaluation by crab recognition

2017 ◽  
Vol 22 (4) ◽  
pp. 771-771
Author(s):  
Jonghyun Ahn ◽  
Shinsuke Yasukawa ◽  
Takashi Sonoda ◽  
Tamaki Ura ◽  
Kazuo Ishii
Keyword(s):  
Deep Sea ◽  
Underwater Vehicle ◽  
Sea Floor

A Cruising AUV r2D4: Intelligent Multirole Platform for Deep-Sea Survey

2014 ◽  
Vol 26 (2) ◽  
pp. 262-263 ◽  
Author(s):  
Kangsoo Kim ◽  
◽  
Tamaki Ura ◽  
Keyword(s):  
Deep Sea ◽  
New Technologies ◽  
Autonomous Underwater Vehicle ◽  
Development Program ◽  
Underwater Vehicle ◽  
Navigation Control ◽  
Bodies Of Water

In this article, a cruising autonomous underwater vehicle (AUV) r2D4 and examples of its achievements to date are introduced. With the objective of realizing an intelligent multirole platform for deep-sea surveys, the r2D4 development program was started in 2001. Launched in 2003, the r2D4 had achieved several practical missions by the time of its last dive in 2010. Enhanced vehicle autonomy was realized by applying new technologies in navigation, control, positioning, and sensing, which enabled the capabilities of tackling more challenging undersea missions. The r2D4 is a multirole platform that is easily able to be modified to meet the applications of diverse purposes. Since its first dive in September 2003, the r2D4 has successfully completed a total of 67 dives in bodies of water worldwide.

scholarly journals Autonomous Underwater Vehicle „ABYSS“

2016 ◽  
Vol 2 ◽  
Author(s):  
Peter Linke ◽  
Klas Lackschewitz
Keyword(s):  
Water Column ◽  
Deep Sea ◽  
Autonomous Underwater Vehicle ◽  
Mineral Exploration ◽  
Underwater Vehicle ◽  
Geological Structure ◽  
Overlying Water ◽  
Ocean Ridges ◽  
Tectonically Active

The Autonomous Underwater Vehicle (AUV) „ABYSS“ is a modular AUV designed to survey the ocean combining geophysical studies of the seafloor with oceanographic investigations of the overlying water column. The basic mission of ABYSS is deep-sea exploration, specifically in volcanically and tectonically active parts, such as mid-ocean ridges. With a maximum mission depth of 6000 meters, the AUV uses several technologies to map the seafloor accurately and determine its geological structure with applications from geology to biology to mineral exploration.

scholarly journals Development Timeline of the Autonomous Underwater Vehicle in Japan

2020 ◽  
Vol 32 (4) ◽  
pp. 713-721
Author(s):  
Tamaki Ura ◽  
Keyword(s):  
Remote Control ◽  
Deep Sea ◽  
Autonomous Underwater Vehicle ◽  
Underwater Vehicle ◽  
Radio Waves ◽  
Successful Development ◽  
Vital Part ◽  
History Of

In 2020, the autonomous underwater vehicle (AUV) has already become a vital part of deep-sea research. There is a long history of R&D of AUVs that dive into the deep sea, where radio waves cannot reach, thus making remote control difficult so that no help can be provided, which implies that careful and adequate preparation is necessary. Their successful development has been based on the accumulation of experience and achievements contributing to the remarkable results that no other system can produce. The aggressive R&D of Japanese AUVs started approximately 40 years ago. This paper looks back at this history and introduces various Japanese AUVs.

An Optical Image Transmission System for Deep Sea Creature Sampling Missions Using Autonomous Underwater Vehicle

2020 ◽  
Vol 45 (2) ◽  
pp. 350-361 ◽  
Author(s):  
Jonghyun Ahn ◽  
Shinsuke Yasukawa ◽  
Takashi Sonoda ◽  
Yuya Nishida ◽  
Kazuo Ishii ◽  
...  
Keyword(s):  
Deep Sea ◽  
Autonomous Underwater Vehicle ◽  
Image Transmission ◽  
Underwater Vehicle ◽  
Transmission System ◽  
Optical Image
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