基于RFID的图书借还系统

AbstractLibrary management system based on STC89C52 MCU mainly USESRFID radio frequency,MCU and 12864 LCD,upper computer,independentbutton as the core of the design device,to achieve from the lower computer cardupper computer display library information.In the design,STC89C52 is used asthe main controller to convert the collected rf card information into data,andeach card number is displayed on 12864 LCD.Finally,the card number record istransmitted to the upper computer through the serial port,and the uppercomputer transmits the record to the database ACCESS for storage.Librarymanagement system,different users to enter login interface is different,administrators and users can query through the upper machine each bookborrowing record information,but only the administrator account can enter in tomanage the books information,such as add,delete,modify,query,and theamount prepaid phone operation.When the next machine swips the card,theLCD will display the card number of each IC card,and the administrator canregister and cancel each IC card and recharge the balance management,effectiveIC card and the upper computer for mutual communication,otherwise thedefault is invalid card.The system will provide complete functions,the overalldesign control low cost,easy to operate,China's population is large,the marketpromotion will have a future.Keywords:STC89C52 MCU,PC,IC card reader,LCD,serial port;