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This paper presents an underwater robot developed for harbor construction, which requires the robot to carry a heavy load with large workspace and high dexterity. The requirement can't be attained by a conventional serial typed robot but by a parallel typed robot. For underwater work, it is necessary to waterproof the robot and its sensors. Especially, a(More)
This research develops two types of heavy robots to cover breakwater with armour stones. The robots assemble the armour stones weighing over two tons on the surface of the breakwater to protect it from storming waves. For construction above sea level, a robot named Stone Man is developed, whereas for construction below sea level, a robot named Stone Diver(More)
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