| 摘要 |
PROBLEM TO BE SOLVED: To provide a method and a device capable of reducing errors and improving sureness in the reading/writing of RFID. SOLUTION: Relative positions between attachments 1, 3, 5 to which respective RFIDs 2, 4, 6 are attached and an antenna 13 are positively changed so that the positional relation between the RFIDs 2, 4, 6 and the antenna 13 has a strong directivity state even in an instant necessary for reading/writing. When two or more RFIDs exist, a state that these RFIDs are not positionally superposed is created. |
