Nippon Marine Enterprises, Ltd. Nippon Marine Enterprises, Ltd.

Operating and managing the remotely operated vehicle Kaiko 7000Ⅱ

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  Operation of deep-sea exploration vehicles
 

   
  The Kaiko 7000Ⅱ is a seabed survey robot capable of performing surveys at a maximum operating depth of 7,000 m. On-board control of the robot is provided by a primary cable of at least 7,000 meters that supplies power and bidirectional optical communication. The operating crew consists of a launcher pilot, vehicle pilot, and manipulator pilot. The launcher dives while coupled to the vehicle and serves as a heavy weight. When the launcher is 100 m above the seabed in the target area, the launcher releases the vehicle and surveying starts. This method of diving is referred to as the launcher and vehicle method.
A secondary cable also connects the vehicle and launcher. This cable keeps the vehicle within 150 m of the launcher as the vehicle conducts its survey and performs other operations.
The Kaiko 7000Ⅱ, the only vehicle that can dive to a depth of 7,000 m or more, has a strong record of contributions to marine science through its sampling of seafloor sediments, organisms, and microbes and the recovery of data from its seismograph.
Nippon Marine Enterprises was commissioned to operate and maintain the remotely operated vehicle Kaiko 7000 in 2000. However, the compactness of this model's vehicle created some problems, including insufficient capacity for installed survey and observation equipment, the limited performance of the small manipulator, and too little thrust. In the autumn of 2005, the Kaiko 7000 was modified in response to pilot's requirements to provide much better performance, and took the name Kaiko 7000Ⅱ.

Remotely operated vehicle Kaiko 7000? Remotely operated vehicle Kaiko 7000?
Remotely operated vehicle Kaiko 7000? Remotely operated vehicle Kaiko 7000?
Remotely operated vehicle Kaiko 7000?

  Launcher
Vehicle
Use: Deep-sea surveying and research using remotely operated unmanned dives
Length: 5.2 m 3.0 m
Breadth: 2.6 m 2.0 m
Height: 3.2 m 2.1 m
Weight in air: 5.8 tons 3.9 tons
Maximum operating depth: 11,000 m 7,000 m
Payload: - 150 kg (weight in air)
Speed in water: - 0.5 knots
Towing speed: Less than 1.5 knots
Reseach and observation equipment:
  • Monochrome TV camera for monitoring × 2
  • Color TV cameras for monitoring × 2
  • Light × 4
  • CTD × 1
  • Side scan sonar × 1
  • Sub-bottom profiler × 1
  • Color TV camera with pan/tilt function × 2
  • Broadcasting-class color TV camera × 1
  • Monochrome TV camera for monitoring × 1
  • Digital still camera × 1
  • Simple HDTV camera × 1
  • Light × 4
  • HMI light × 2
  • CTD × 1
  • Obstacle avoidance sonar × 1
Working equipment: -
  • 7-axis manipulator × 1
  • 6-axis manipulator × 1

Remotely operated vehicle Kaiko 7000? Remotely operated vehicle Kaiko 7000?
Remotely operated vehicle Kaiko 7000? Remotely operated vehicle Kaiko 7000?

Remotely operated vehicle Kaiko 7000? Click here to see a video of the remotely operated vehicle Kaiko 7000Ⅱ.
Source: Japan Agency for Marine-Earth Science and Technology (JAMSTEC)

Click here to see a photo gallery of the remotely operated vehicle Kaiko 7000Ⅱ.
Nippon Marine Enterprises, Ltd.
Nippon Marine Enterprises, Ltd.
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