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After reading a book in the library, always forgetting the location of the book, resulting in a very confusing place books.
"Book Homing" design is very clever solution to this problem. Each book has a barcode recording locations, each bound a LDE lights. When it comes to the book, the book's barcode scanning barcode scanning mouth, book position and the front LED will light up, reminding you've found the location of the original book. So do not put the book misplaced.
Zhongyuan University of Technology
Henan.Zhengzhou, China
xiaoming Deng,
Zhongyuan University of Technology