The Antarctica, here we are! Oceanalpha USV into the Antarctica
Date:2017-12-22    Browse times:246次

In the Antarctic, which is thousands of miles away from us, there is an USV that continues to explore this area, braving the wind and waves. In November this year, China's 34th Antarctic Scientific Expedition was officially launched. M80B submarine exploration USV, jointly developed by the People's Liberation Army Navy Surveying and Mapping Institute, the State Oceanic Administration South China Sea Survey Technology Center and Oceanalpha, along with the BNSK polar scientific research ship drive southward to the island of Enkosco in west coast of Ross Sea. It has done an excellent job of measuring the depth of the anchored terrain of the 5th Antarctic Research Station in China. It has done an outstanding work of measuring the water depth of anchored terrain in China's fifth Antarctic research station.

This is an area to be explored, its harsh climatic conditions and its complex and diverse marine dynamic environment not only challenge the BNSK sailing but also bring about the task of performing traditional underwater surveying on manned surveying boats great risk.

As the first dedicated unmanned platform designed for seafloor exploration missions, the M80B USV is 5.65 meters long and 2.4 meters wide with an endurance of over 100 nautical miles and a maximum payload weight of 150 kilograms. It can load single-beam echo sounder, multi-wave sounding system, side scan sonar, forward looking sonar, ADCP and other acoustic detection equipment modularity, and it can also carry magnetic detectors, mobile laser scanners, multi-parameter water quality instrument and other equipment with strong scalability.

On December 8, the M80B USV lasted 14 hours in the sea area around the Nanyan Island under the unsteady natural environment and completed the task of multi-wave full-coverage seafloor topographic survey in a sea area of 5 square kilometers. It not only filled the data gap in the region, but also provided basic spatial and geospatial data support for ship navigation and new station construction.

According to Pu Jinjing, director of application Oceanalpha Technology, from the beginning of R & D design, M80B fully considered the principle, structure and working condition requirements of various types of task loads and insisted on taking the road of innovation and achieved a series of technological breakthroughs. The USV is designed with Trimaran concept. It has excellent performance in terms of stability and wave resistance. At the same time, it adopts a specially designed "wave-type" of bow bulb, which can not only effectively reduce longitudinal slips of the ship, but also help to reduce the water spray caused by it when sailing and can better ensure the quality of measurement data.

"The Antarctic is in a low-temperature environment where the mechanical properties of the hull material may change, the GNSS signal is weak, and the electronic components also have an impact." Pu Jinjing said that in order to ensure that the M80B can perform this voyage mission, the project team engineers have made a lot of research in the hull structural strength, power system selection and selection of electronic components, etc. "For example, the design of the bow on the ship is designed by ourselves for ease of allocation after capture and stopping suspension. And GNSS antennas, In order to weaken the multipath effect at sea, we made a choke structure myself on the dock. "

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