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With the rapidly development aging society, elderly health care becomes a noticeable issue. Safety problem is important, especially during the night.
The projection area on the pavement is a sign for the elder pedestrian to watch out on road, and warns vehicle driver in the dark. The red rejection light on the pavement not only reminds the elder to watch out while walking, but also prevent from falling.
Xinli Li Wen-Kuei Wu Zhili Wang Hsueh ching fang