Abstract: Nowadays, the scale of library is expanding and the quantity of books is increasingly large. Besides, with the growing popularity of open shelf reading the phenomenon of misplaced books is becoming more&more common. Thus, readers finding books and library administrators checking books are also becoming increasingly difficult. The misplaced books can be identified by using a pair of motor and a RFID reader attached on the shelf. The position of the corresponding book will be displayed on the screen. The data transfer takes place with the help of GPRS technology. However, what has been used most widely now is the library management system based on barcode, whose operation process is beyond complicated. What’s more, the barcode has a short life and breaks easily,which greatly influences the efficiency of the library management.

Keywords: RFID, atmega16 microcontroller, Embedded c, GPRS