Researchers have developed an unmanned intelligent cleaning vehicle system that has a salvage range 10 times larger than traditional cleaning vehicles.
"The system can significantly improve work efficiency, reduce labor costs and meet cleaning needs," said Dr. YU Daoyang from the Hefei Institutes of Physical Science of the Chinese Academy of Sciences, who led the team.
Environmental problems of water area are becoming increasingly prominent.
This unmanned surface vehicle system is composed of a main vehicle (10m in length) and two pilot sub-vehicles (0.8m in length). It's like a bird with two wings.
During operation, two sub-vehicles pull the main vehicle with garbage racks. The extension forms a trumpet-shaped garbage collection area of about 30 meters in width to collect all the garbage in the area.
Seven months ago, the team developed an unmanned cleaning boat. This time the key point is to make the three independent vehicles cooperate. They proposed an adaptive process identification control method and geometric approximation algorithm for multi-objective coordination. By using this method, autonomous control of the navigation path of the sub-vehicles was realized.
In addition, several operation modes such as river approach, river central driving, autonomous cruise and obstacle avoidance mode are available.
In obstacle avoidance mode, for example, the "wing" team will decide whether to overtake, follow or slow down by taking reasonable obstacle avoidance measures according to the situation they encounter.
"The cleaning efficiency is much far higher than conventional surface vehicles," said YU.
The unmanned surface vehicle system. (Image by HFIPS)
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