| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a tag information collecting system which collects a tag information by group unit without particularly tasking a network manager. <P>SOLUTION: When a RFID reader-writer 200 receives an information acquiring request transmitted by multicast to a group in which a self terminal participates, it transmits the tag information read by radio communication from a RFID tag to a transmission source of the information acquiring request correspondingly to identification information of the self terminal. A RFID reader-writer managing terminal 300 transmits the information acquiring request by multicast to the group in which a plurality of RFID reader-writers 200 participate and receives the tag information transmitted from the RFID reader-writer 200 correspondingly to the identification information of the transmission source. <P>COPYRIGHT: (C)2009,JPO&INPIT |
