RFID-TAG READING/WRITING METHOD AND READING/WRITING DEVICE

摘要

An RFID-tag reading/writing method and reading/writing device improves processing efficiency of wireless data communication and of lowering an error rate of the reading/writing processing while a RFID tag 11 is being transferred are provided. Paying attention to the wireless data communication conducted with the RFID tag 11 along a plurality of device antennas provided on a transfer path 18 of the RFID tag 11, a reading/writing processing time is calculated based on a length of the device antenna faced with an RFID antenna 15 along a direction of the transfer path 18 and a transfer speed of the RFID tag 11 on the transfer path 18, and the wireless data communication is sequentially executed within the reading/writing processing time while the RFID tag 11 is being transferred between a first device antenna 19, a second device antenna 21 or a third device antenna 23 sequentially provided as device antennas on the transfer path 18 from the upstream side toward the downstream side and the RFID tags 11.

主权项

1. An RFID-tag reading/writing method of an RFID tag,
having an IC chip and an RFID antenna, capable of wireless data communication, comprising:
transferring the RFID tag along a transfer path from an upstream side toward a downstream side;calculating a reading/writing processing time based on a length of a device antenna faced with the RFID antenna along a direction of the transfer path and a transfer speed of the RFID tag in the transfer path; andsequentially conducting the wireless data communication between a first device antenna, a second device antenna or a third device antenna sequentially provided as the device antenna on the transfer path from the upstream side toward the downstream side and the RFID tag within the reading/writing processing time while the RFID tag is being transferred on the transfer path.