RFID tag detection and re-personalization

摘要

Systems, methods and computer program products for detecting and re-personalizing are provided herein. In an embodiment, the invention operates by obtaining an ID (i.e., an identification, such as a Dynamic Unique Identifier) from a RFID tag, generating a new ID, and writing the new ID to the RFID tag. The ID read from the tag is used to lookup a subject's record in a database. If the write of the new ID to the tag is verified, then database changes are committed to link the new ID to the subject. In an alternative embodiment, the invention operates by obtaining data from a memory of a RFID tag, wherein the memory has a first partition and a second partition, generating a new ID, and writing the new ID to either of the first partition or the second partition of the RFID tag. If such write is verified, then the new ID is written to the other partition of the RFID tag. The data from the tag is used to lookup a subject's record in a database. If either write to the first partition or second partition is verified, then database changes are committed to link the new ID to the subject.

主权项

1. A method of detecting and re-personalizing RFID tags, comprising:
obtaining a used single-use first anonymous ID (identification) from a RFID tag, the RFID tag comprising a memory divided into a first rewritable portion and a second rewritable portion, wherein said used single-use first anonymous ID is stored on the first rewritable portion; generating a single-use second new anonymous ID different from said used single-use first anonymous ID; and determining if contents of said first rewritable portion and said second rewritable portion agree; wherein, if said contents agree:
using either contents of said first rewritable portion or contents of said second rewritable portion to lookup a subject's record in a database,unlinking said used single-use anonymous ID from the RFID tag after reading the used single-use first anonymous ID when said single-use second new anonymous ID is generated, andwriting said single-use second new anonymous ID to said second rewritable portion of said memory of said RFID tag; and wherein if said contents disagree:
individually using contents of said first rewritable portion and contents of said second rewritable portion to lookup said subject's record in said database, andwriting said single-use second new anonymous ID to one of said first rewritable portion and said second rewritable portion having bad data stored thereon.