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When the strong wind and big wave comes, there are lots of people are involved in the wave.
And there are not enough Coast Guard to keep their eyes on each person at shore side or pier、can’t warn people at the shore side in time, then make people ignore the power of nature.
Hence warning people by "wind", make wind power transform into electric energy, when the sensor is over the limit then the indicator lights up
Not only the visual but sound can make warning, let the tourists and phishers know the dangerous immediately, then protect them from danger in time.
National Taipei University of Technology