Realization of RFID resolution service using “EPCIS directory + PML” mode with structured cache

By RFID (Radio Frequency Identification) resolution service it means to find the server´s address that stores the detailed information of a product and return this information to the user by reading and resolving the RFID EPC (Electronic Products Code). In this paper, we proposed an new realization mode of resolution service system framework by integrating “EPC Information Service (EPCIS) directory with PML”, where, EPCIS is an important data sharing standard in RFID sector and PML (Physical Makeup Language) is the resolution service information interchange standard. The directory is used as the carrier of the detailed information of the product, and PML (Physical Makeup Language) file as the information carrier. A 2-level cache structure is used in the above-mentioned realization mode. The modeling experiment shows an improvement of 56.7% on the efficiency of the resolution service after using the hierarchal cache structure.