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This design is survival equipment. In the event of shipwrecks, it can automatically locate the local coordinate and use its gyroscope structure floating in the sea with a red "SOS" logo at the top reflected on the sea to give rescue workers reminders. The device can also be set manually. When someone is stranded in a desert island, it can be used to make the light.
In the middle of the floating bottle is equipped with the device of tidal power generation, which can take advantage of the sea waves to charge the floating bottle continuously, so that it can provide enough energy for display device.
liaoning shihua university
fushun city, China
Liu zhao long Dong xiao ri