Smart label

Smart Label, also called Smart Tag, is an extremely flat configured Transponder under a conventional print-coded label, which includes chip, antenna and bonding wires as a so-called inlay. The labels—made of paper, fabric or plastics—are prepared as a paper roll with the inlays laminated between the rolled carrier and the label media for use in specially designed printer units.

The processing of these labels is basically as with ordinary labels in all stages of production and application, with the following extensions:

• the inlay is inserted in an automated processing step to ensure identical positioning for each label and careful processing to prevent any damage to the bonding.

The printing is processed in two steps, including

• normal ink-jet printing, except the space with the bonded chip, with clearly intelligible text and
• either barcode or 2D barcode for later semi-automatic reading with handheld readers or fix-mount scanners
• writing coherently concatenated information to the RFID-chip
• reading the written information on the RFID-chip subsequently in the printer for control purpose (read after write)

Other customisation of such smart labels is with chip cards. Also combinations of magnetic stripes with RFID chips are used, especially for credit cards.

In many processes in logistics and transportation the barcode or the 2D-barcode is well established as the key means for identification in short distance. Whereas the automation of such optical coding is limited in appropriate distance for reading success and usually requires manual operation for finding the code or, alternatively, scanner gates, that scan all the surface of a coded object, the RFID-inlay, as an additional means, allows for better tolerance in fully automated reading from certain specified distance. However, the mechanical vulnerability of the RFID-inlay is higher than the ordinary label, which has its weaknesses in its resistance to scratch.

Thus, the smartness of the smart label is earned in compensation of typical weaknesses with the combination of the technologies of plain text, optical character recognition and radio code.

Smart labels are applied directly to packages or to pallets or other containments. The application directly to the product is still of neglectible importance

• due to the cost of the labels, which may be justified easier for agglomerations of more than one product
• because all metallic, liquid or otherwise electrically not transparent products reflect or reduce the radio waves
• due to the handling, which normally addresses the package and lesser the unpacked product.

The technologies with the smart labels are all mature and well standardised. After first wave of technology hype with RFID, current consolidation in the market shows hard competitive Darwinism. With increasing sales quantities, the inlays are still annually redesigned and appear in releases with new extensions to performance. However, integration of RFID to handling processes requires sound engineering to ensure the balance of benefit and effort.

For details on the coding and labeling technologies please refer to he respective pages.

See also

• Automatic identification and data capture
• ALL-TAG.com: Information and Images of AM/RF Security Labels
• Barcode
• Barcode#2D_barcodes
• Radio Frequency Identification