Encoding RFID tags of grouped items

摘要

Systems, methods of operation, and software are provided, for encoding RFID tags with which a predefined group of items is tagged. Encoding is by writing applicable Electronic Product Codes (EPCs) to the tags, so as to identify the individual items in the group. A base code can be read from each tag, and the applicable EPC is then written to it.

主权项

1. A method for an Radio Frequency Identification (RFID) reader for writing an Electronic Product Code (EPC) into an RFID tag, the method comprising:
singulating a first one of tags in a group, determining that the first one of the tags is not encoded with a final EPC, reading a base code tag from the first one of the tag, deriving the final EPC from the base code, determining that the first one of the tags is encoded with an initial EPC and overwriting the initial EPC with the final EPC to a memory of the first one of the tags, singulating successively each of the other tags in the group while the group of tags is in a reading zone, and setting an error flag if a number of the singulated tags disagrees with a preset group number or if an error is detected.