Apparatus for efficiently locating and communicating with a specific RFID tag among a plurality of groups of tags

摘要

An apparatus for communicating with an RFID tag is provided which has a radio communicating device configured to conduct radio communication with a plurality of individual RFID tags constituting a single tag group and a single representative RFID tag associated so as to represent the tag group. A first information obtainment portion is configured to conduct first communication for search of the representative RFID tag corresponding to the individual RFID tag to be searched and to obtain information from the representative RFID tag; a switching determination portion configured to determine if the first communication in information obtainment satisfies a predetermined switching condition. A second information obtainment portion configured to conduct second communication for search of the individual RFID tag to be searched in a communication mode different from that of the first communication if the determination is satisfied and to obtain information from the individual RFID tag.