Method for filtering elementary event facing RFID (Radio Frequency Identification) label dynamic information management

The invention discloses a method for filtering elementary event facing RFID (Radio Frequency Identification) label dynamic information management, comprising the following steps of: in order to satisfy the requirement that elementary event is filtered timely for collected RFID dataflow, building a priority queue set for storing the collected RFID dataflow in the RFID dataflow acquisition phase; extracting the elementary event from the collected RFID dataflow stored in the priority queue in the built priority queue set by using the built priority queue set and maintaining one elementary event list for each reader-writer, preferentially filtering so that the elementary event is preferentially filtered for the collected RFID dataflow collected by the high-priority reader-writer, communication load between the reader-writer and an upper computer is reduced at the same time, and the instantaneity of RFID label dynamic information management is improved.