| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a method capable of judging even the position relation of a combination component of an object with a fitting part using an inexpensive passive tag with no power supply and also judging the position relation of two or more combination components by using a tag capable of performing congestion control that enables concurrent reads to be carried out within a readable range. <P>SOLUTION: The RFID tag of passive type, which is capable of performing two or more reads concurrently, has a structure where an antenna and a chip are formed into one piece. The antenna unit of the tag is divided into two or more, and each antenna unit containing the chip is embedded in an object of management. Each antenna unit containing a chip is embedded in the object of management in such a manner that the divided antenna unit is assembled into a full antenna unit which functions as a RFID tag when the object of management is normally assembled. By this setup, the object of management, which is normally assembled, is irradiated with RFID tag radio waves, the response of the object of management to the radio waves is received, whereby it can be ascertained that the object of management is normally assembled through this management method. <P>COPYRIGHT: (C)2008,JPO&INPIT |
