| 摘要 |
When a detector sensor such as an infrared sensor or the like detects (S10) a palette or cart mounting a product, the output of the radio wave from the antenna of the reader/writer is set (S11) to a minimum value. Then, the radio wave output value is gradually increased (S13) from the minimum value until an RFID tag can be read/written. After the RFID tag can be read/written (S14), a target process such as the reading/writing of the RFID tag or the like is performed and the process is terminated. After the process is terminated, the radio wave output is returned to the minimum value (S15).
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