This is the VideoRay Pro 4 out of the tank. It has a pair of propellers in the back. The hole on top is where the third prop is located. It provides for vertical movement because of the vehicle's neutral buoyancy.
The VideoRay took a spin in the large demo tank but its sibling is here in the small circular tank at VideoRay's booth. The ROV (remotely operated vehicle) has a tether that provides control, power and the video feed from the camera in the front of the robot.
This is the back end of the VideoRay. The two props can spin the unit in any direction. The props and motors are modular for easy replacement. The Pro 4 version also includes 3D tilt compensated compass, accelerometer, a MEMS gyro, a leak alarm, internal temperature gauge, real time volt meter, and depth sensor. The package can go down to 300 meters.
Solid Concepts is known for its 3D printing technology. So what is it doing in this slideshow? Well, this underwater ROV unit was one they built using a range of 3D printing technologies. That includes the clear dome although that was created using 3D printed templates.
This is one of the single piece control fins that snap into place on the ROV. The internal slot where the person's thumb is will flex so it can snap into place. This would normally require multiple components.
No. It was not because of the water but this SeaPerch is smaller than the original that we saw at an earlier AUVSI show (watch One for the Kids: Educational Underwater Robotics from SeaPerch on Engineering TV). This new SeaPerch is less expensive and can run in a smaller tank since most competitions are not done in large bodies of water. It is still quite maneuverable and a lot of fun.
The MaritimeRobot X Challenge . The WAM-V (Wave Adapted Modular Vehicle) shown here was developed for the challenge by Marine Advanced Research, Inc. It is part of a family of manned and unmanned vehicles. It uses a wave adaptive design that flexes based on conditions. It essentially dances on the waves.
Liquid Robotics is another company we checked out at earlier AUVSI shows (watch Wave Glider Wave-Powered Marine Robot - AUVSI Unmanned Systems 2012 on Engineering TV). Check out the video to see the autonomous robot in action.
Liquid Robotics has a pair of floating robots, the Wave Glider V2 and the larger V3. They are playing follow the leader here. Of course, this shot was not from the show. There was not quite this much water available. Both are designed for long range, long duration sea going operation generating their own power and movement using wave action.
The 2013 AUVSI show in Washington, D.C. had quite a few robots on display including a number of water-based vehicles. They ranged from the tiny, open hardware SeaPerch to the long range Wave Glider from Liquid Robotics.
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