Research Of Intelligent Radio Frequency Identification Guide System Based On Embedded Linux

Artificial intelligence identification technology has become more and more mature. Especailly, RFID (Radio Frequency Identification) has been widely used in various fields. It uses the coupling of radio magnetic field to realize contactless data communication. It has many advantages, such as far identification distance, fast identification speed, high identification accuracy and strong anti-interference ability. In terms of tourist attractions and museums, traditional introduction ways of guides fail to meet tourists’ needs, and with the simple electronic guide devices which broadcast content is chosen by tourists, tourists can enjoy the tour but the device is not intelligent. With the application of RFID, the intelligent guide system can identify tags fastly and accurately and therefore to bring a better travel experience for tourists. This article focuses on the study of intelligent RFID guide system which is based on embedded Linux.In the research, the intelligent RFID guide system is based on embedded Linux. It uses Samsung S3C6410chip under ARM11architechture as the main microprocessor. The device has256MB RAM,4GB Nand Flash storage space and the main frequency is up to667MHz.lt uses13.56MHz and2.45GHz RFID to realize near-field and far-field communication with RF module drivers. It uses Qt Creator software to develop the application program, and for the2.45GHz RFID, the anti-collision algorithm based on improved regressive-style binary search has been put forward to identify different tags. The algorithm is simulated under Matlab simulation environment and verified in practical system.The intelligent RFID guide system is powerful in function.It is possible to realize remote access and control using network; it can realize near-field and far-field communication.The near-filed communication distance is nearly6cm and far-field one is more than10m; the application program has a good graphical user interface, providing automatic and manual guide modes, in which it automatically plays video after the far-field communication identifies tags, and is manually triggered by tourists with near-field communication to realize tag identification during customs’visit.There are eight chapters in this paper. Chapter Ⅰ mainly elaborates the background, significance and research status of this subject and overall structure is presented; Chapter Ⅱ introduces RFID technique; Chapter Ⅲ gives introduction of preliminary work of debugging and analysis; Chapter Ⅳ puts forward the whole design of the intelligent RFID guide system, including hardware platform and software platform; Chapter Ⅴ and Chapter Ⅵ give details of the design process of the hardware and software platform; Chapter Ⅶ presents the debugging of system; Chapter Ⅷ gives conclusion and prospect of this paper. There are67pictures,14tables and43references in this paper.