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The 2015 OCEAN71 expedition will take place in Fiskardo, in the northern part of Kefalonia, Ionian Islands, Greece. The endeavor of this new expedition encompasses two different missions : the survey of underwater remains of a shot and sunk english Beaufighter bomber plane and an ethological approach of the endangered Mediterranean monk seal. Both missions will deploy innovative survey techniques by air or diving investigations.
In preparation for our expedition next week, a small team from OpenROV coordinated a trial run in Tahoe to test equipment. We've outfitted a small inflatable boat with long range communication equipment, a USBL acoustic positioning system, and a low cost dynamic positioning system. Our purpose for building this system was to demonstrate that many of the capabilities one might think would require a large research vessel can actually be achieved with off-the-shelf parts that are more portable and much less expensive. You can read up on the details on the forums here: <a href="http://bit.ly/25xwKBn" data-longurl="https%3A%2F%2Fforum.openrov.com%2Ft%2Ftrial-run-of-new-equipment-for-shipwreck-expedition%2F4384">http://bit.ly/25xwKBn</a>
Vanguard Diving & Exploration and Science in The Wild have successfully operated the OpenROV 2.8 in the Spillway Lake of Ngozumpa Glacier, high in the Himalayan mountains of Nepal as part of our Sherpa-Scientist Initiative. The goal of this endeavour is to provide local communities with the tools and skills they need to contribute to scientific investigations of high mountain glacial lakes that pose a threat to their communities and way of life. The OpenROV was chosen as the ideal platform to build the underwater research component of this citizen-science project, and we are using this testing period to develop the technology and develop curricula to train mountain communities to participate in climate change adaptation. Thank you very much to OpenROV and their investors who provided our team with our first ROV, and have helped set an impactful project in motion.
Assembly OpenRov model: OpenROV 2.8 Mini Observation Class ROV Chassis Assembly of the plastic body of the OpenROV went quite smoothly. A few mistakes were made, most easily amended and a few not so much. The syringe plug, to seal the electronics, could not be removed, thus the electronics tube could not be closed or sealed properly. Plastic end caps of battery tube broke apart. Screws to hold the weights fell off easily. We cut some wires too short, as the instructions didn’t give any indication about length, especially the battery wires. Assembly instructions were easily understood and very effective. Most issues were able to be solved Electronics Hardware Problems also arose when soldering one of the battery connections, as the wire would not hold to the metal plate securely. Connections in the communication box were difficult to fix once the box was closed, thus it had to be taken apart. *we suggest designing the communication box with a lid. Software Firmware had to be flashed to the BeagleBone several times before it would connect to the URL link to the dashboard. Exploring We used the OpenROV to try observe the effect of garbage on the seafloor of the Kingston Harbour, near a community called Royal Palm. Garbage ends up there from one of the exits of the open sewer network in Kingston. The OpenROV performed quite well in terms of maneuvering however, the video quality received was not sufficient (as the camera was not focused properly). We were able to make out the images captured a few objects such as plastic bags, tarpaulin and rope. Problems noted: Battery tubes flooded Electronics tube leaked Tether was the only means of determining the OpenROV’s position. Report prepared by: Zachary Chen Dylan Chin
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