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Many backward countries in Africa try to find more than a dozen hours a day for clean water.
UAVs flying outside the detection of humidity in the air reaches a certain value, stay in the area condensation of water in the air, collect a certain amount of water before flying back to the original place for human consumption. At the same time positioning camera, and use the satellite to send back, so that people can decide whether to go looking for water.
Taichung City, Taiwan
TZU YUN HUANG,