The Research and Implementation of RFID Middleware Data Filtering Algorithm

摘要

RFID is an advanced non-contact automatic identification technology. It is widely used in location, realtime identification and tracking and it has become a hot topic in the field of research. A lot of redundant data and noise data greatly reduce the efficiency and performance of RFID system. This study puts forward a filtering algorithm based on dynamic adaptive time window. In order to ensure the sequence of acquainted RFID data correctly, the ordered filtering algorithm based on hash table is introduced. Experiments show that the improved filtering algorithm not only can effectively filter duplicate data, but also can ensure the correctness of the data reception.