RFID Label Folding for Metal Interference Reduction
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Solution Overview
Problem
Conventional label application devices face issues with reading and writing RFID tags when applied to articles containing metal or liquids, as these materials interfere with electromagnetic waves, causing disturbances that hinder data transmission.
Innovation Solution
A label application device that folds a portion of the label with the RFID tag to form an angle relative to the article, separating the tag from the article's surface, thereby reducing interference and ensuring stable data transmission.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the label is applied flat to the article surface, then the label adheres properly to the article, but the RFID tag experiences interference from metal or liquid materials in the article
Solution Approach 1:
The patent applies the label in a folded state where the portion containing the RFID tag is bent at an angle (e.g., 45 degrees) relative to the main label body. This dimensional change from a flat 2D configuration to a folded 3D configuration positions the RFID tag away from the article surface, reducing electromagnetic interference from metal or liquid materials while maintaining proper label adhesion to the article.
2Device complexity
If the RFID tag is positioned close to the article for compact labeling, then the label structure is simplified, but electromagnetic wave interference from the article materials disrupts reading and writing operations
Solution Approach 1:
The label is divided into distinct segments: a main label body that adheres to the article and a separate folded portion containing the RFID tag. This segmentation allows the RFID tag to be positioned in a different spatial plane, isolated from interfering materials while maintaining a unified label structure that appears compact when viewed from above.
3Reliability
If the label is folded to separate the RFID tag from the article, then electromagnetic interference is reduced, but the label application process becomes more complex
Solution Approach 1:
The label is pre-folded into the desired configuration before application to the article. The folding operation is performed in advance during label preparation, creating a ready-to-apply folded label structure. This preliminary action simplifies the application process itself, as the folded label is applied as a single unit rather than requiring complex real-time folding operations.
Data Source
AI summary
For applying a label to an article, and with a RFID tag on the label also being separated from the article, and for minimizing the influence from the article on the tag, and for securing stable reading and writing of data, a label application device applies a label to which a RFID tag comprising an IC chip and communication antenna is fixed, to the article. A folding device folds a portion of the label having a tag-fixing area to which the RFID tag is fixed, such that the back side of the label is pushed to the surface side of the label so that the label portion protrudes to form an angle and is folded, and then applying the label to the article. A device acts on the label portion to form the fold.