ROV Beginnings

CoeBotics is experimenting this summer with an underwater Remote Operated Vehicle (ROV). A small group of students will be working on building and testing a basic ROV model, and we will hopefully learn what it takes to build and operate an ROV.

We are using a basic kit provided by MIT / Univ of Hawaii and are attempting to build an ROV which can participate in the International ROV competition.

The Marine Advanced Technology Education (MATE) Center coordinates an international student underwater robotics (remotely operated vehicle or ROV) competition and a network of 20 regional ROV contests that take place across U.S. and in Canada, Hong Kong, Scotland, and Japan. For more info see the MATE competition website.

So stay tuned for developments over the summer and who knows, perhaps we will add this to our various robotic offerings at Coe!

Our Progress

July 2011 — Improved propeller and Underwater Camera System

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August 2011 — Improved submarine

After extensive testing and acquiring new propellors, we have our test submarine working again.  We spent a good deal of time understanding the buoyancy of the ROV.  Ultimately we need to achieve neutral buoyancy for the ROV to be able ‘hoover’ effortless in the water.  We have also observed that there are issues surrounding balancing of the ROV which play a roll.  Currently the ROV has a tendency to pull itself down when the motors push it forward, it looks like the front is slightly heavier and does causing a ‘nose down’ scenario.  Further the two drive motors are not working right, it has a slight tendency to always wanting to turn left when both motors push the ROV forward.  We may either need to flip the direction of one of the motors, or get a left and a right turning propellor, or just need to ensure that the motors are more precisely mounted horizontal, parallel and at same height relative to the ROV frame.  We will continue to investigate and learn before we set out on our larger model.

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