A wireless tag reading method, the RFID information providing method, a wireless tag, a wireless reader and a wireless tag reading system

摘要

A method for reading an RFID tag, a method for providing wirelessly recognized information, the RFID tag and an RFID reader are provided to make the frequencies of signals, transmitted and received between the RFID tag and RFID reader, differently. An RFID reading system comprises the followings: an RFID reader(200) which sends a transmission frequency signal, including a tag recognition command, to an RFID tag, and receives a reception frequency signal transmitted from the RFID tag to read/process the signal; and the RFID tag which is driven by power induced by the transmission frequency signal outputted from the RFID reader. The RFID tag accesses or renews the stored recognition information according to the tag recognition command of the transmission frequency signal.