Inspection method and inspection device for rfid tag

Abstract

An RFID tag inspection method includes the steps of transmitting a measurement signal from a reader/writer simultaneously to a plurality of RFID tags arrayed on a collective base member and configured to process radio signals, receiving response waves from the individual RFID tags in a batch by the reader/writer, and determining, based on strengths and a number of received signals read by the reader/writer, whether or not the individual RFID tags are acceptable. Thus, acceptance/rejection inspection can be performed on the plural RFID tags, which are arrayed on the collective base member, in a batch.

1 - 10 . (canceled) 
     
     
         11 . An RFID tag inspection method comprising the steps of:
 transmitting a measurement signal from a reader/writer simultaneously to a plurality of RFID tags arrayed on a collective base member and configured to process radio signals;   reading response waves from each of the plurality of RFID tags in a batch by the reader/writer; and   determining, based on strengths and a number of received signals read by the reader/writer, whether or not each of the plurality of RFID tags is acceptable.   
     
     
         12 . The RFID tag inspection method according to  claim 11 , wherein the measurement signal is transmitted from one reader/writer, and the response waves from each of the plurality of RFID tags are read in a batch by the one reader/writer. 
     
     
         13 . The RFID tag inspection method according to  claim 12 , wherein, in the reading step, the response waves from the RFID tags are intensified by a reflecting plate. 
     
     
         14 . The RFID tag inspection method according to  claim 11 , wherein the measurement signal is transmitted from one reader/writer, and the response waves from each of the plurality of RFID tags are read in a batch by another one reader/writer. 
     
     
         15 . The RFID tag inspection method according to  claim 11 , wherein the acceptance/rejection determining step includes a step of determining whether received signal strengths of the response waves from each of the plurality of individual RFID tags are not less than a threshold, and a step of determining whether a number of the received response waves is matched with a number of the RFID tags arrayed on the collective base member. 
     
     
         16 . The RFID tag inspection method according to  claim 11 , wherein, in the transmitting step, a dielectric member is interposed between the reader/writer transmitting the measurement signal and the plurality of RFID tags. 
     
     
         17 . An RFID tag inspection device comprising:
 a dielectric member on which a plurality of RFID tags arrayed on a collective base member is disposed;   a reader/writer disposed at a position opposite to the collective base member with the dielectric member interposed between the reader/writer and the collective base member; and   a determining unit configured to determine, based on strengths and a number of received signals read by the reader/writer, whether or not each of the plurality of RFID tags is acceptable.   
     
     
         18 . The RFID tag inspection device according to  claim 17 , further comprising a reflecting plate disposed on an opposite side of the collective base member relative to the reader/writer. 
     
     
         19 . The RFID tag inspection device according to  claim 18 , further comprising an adjusting member arranged to adjust a distance between the reader/writer and the reflecting plate. 
     
     
         20 . The RFID tag inspection device according to  claim 17 , further comprising another reader/writer for reception, which is disposed on an opposite side of the collective base member relative to the reader/writer.