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At the first sign of fire, the UAV will detect the source and fly above it, and then launch its fire-proof sheath, which is the shape of an umbrella. This fire-proof sheath will completely cover the fire source and also isolate it from the air outside. Then its fan will rotate quickly in a counterclockwise direction to pump out the air which is inside the fire-proof sheath and rapidly convert the space inside the sheath into a vacuum. In this way, the fire can be extinguished before it has spread and caused casualties.
Yong Xiang Lin,
Fang Kuang Chiu,