Research On The Fusion Of RFID And WPAN Based On ZigBee Technology

Recent years, with the quick development of RFID and WPAN based on ZigBee specification, there are more requirements for the convenience of RFID and the flexibility of WPAN.At first, after studied and analyzed characters, specifications and key points of two technologies, the paper brings forward the system topology, schematics and relevant algorithms. All these are created based on the theories and model simulations.Secondly, there are little conflictions and more complements between UHF RFID and 2.45 GHz ZigBee. So the paper puts out a new point of view, a new solution and a new concept of HWSIN (Hybrid Wireless Sensor Identification Networks).In the end, some experiments are carried out to validate the functions of the whole system. As a result, the application of RFID expands from one single point to cooperative work in a WPAN. This also provides a simple and feasible bridge to realize the EPC world in the future. And there are no relevant application reports about fusion of two technologies till today.Chapter 3, 4 and 5 are emphases of the dissertation. The main contributions of the dissertation are:1. The paper studies the UHF RFID specification and system architecture thoroughly. The μc+FPGA base band module and a RFID reader architecture of zero-IF topology have been designed independently. A rectangle antenna is simulated.2. Aloha and binary-tree anti-collision algorithms are analyzed. End device controlling program and user interface on PC have been developed.3. The specifications of IEEE 802.15.4, WSN and ZigBee Alliance have been studied. Key technologies, such as CSMA/CA and low power consumption, are discussed and simulated in the thesis.4. The ZigBee hardware module and 2.45GHz antenna are designed. The RF parameters of the final board are tested and revised. The IEEE 802.15.4 software stack is developed and interconnecting function is optimized.5. The feasibility of fusion of RFID and ZigBee is analyzed. One kind of open and common interface, including hardware and software, is designed.