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The blurred labels on the books may lead to inefficiency in shelving books and searching for the wanted books.
In dealing with this problem, two patterns are available in this device: one for librarians and the other for readers. Librarians just need to scan the bar code and press the Enter button, then the light of the shelf which the book belongs to will turn on and the books can be shelved in no time. Similarly, readers just need to input the call number and press the Enter button, the light of the shelf which the wanted book belongs to will also switch on and the book can be found immediately.
Xi Chen,Xiaoxiao Han,Wei Wang,Anxin Hu