RADIO TAG SYSTEM, RADIO TAG ACCESS CONTROL DEVICE, RADIO TAG ACCESS CONTROL METHOD, RADIO TAG ACCESS CONTROL PROGRAM, AND RADIO TAG

摘要

PROBLEM TO BE SOLVED: To eliminate a need of anti-collision processing or to quickly perform anti-collision processing by considerably reducing the number of tags to be subjected to the anti-collision processing even when performing the processing. SOLUTION: A radio tag system includes a plurality of radio tags which are slave tags having unique IDs respectively, a plurality of radio tags which are provided for slave tags and are master tags wherein unique IDs of slave tags are stored, and a radio tag access control device which accesses a mater tag to acquire a unique ID of a slave tag from the master tag and uses the acquired unique ID of the slave tag to access the slave tag. COPYRIGHT: (C)2006,JPO&NCIPI