engineering

Smart label

Smart label is a engineering topic covered in the lgStudy science library. This page brings together a partial reference excerpt, illustrations, worked examples, real-world applications and a short study plan, so you can understand Smart label rather than just read about it. In short: A smart label, also called a 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.

Key takeaways

Smart label belongs to engineering; place it in that map before memorising details.
Learn the definition first, then one example that makes the definition concrete.
Connect Smart label to a quantity you can measure, compute or draw — that is where exam questions come from.
Reproduce the core statement of Smart label from memory before moving on to harder problems.

Reference excerpt

A smart label, also called a 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. 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 scanner gates that scan all the surface of a coded object, the RFID-inlay allows for better tolerance in fully automated reading from a 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.

Processing The processing of these labels is basically as with ordinary labels in all stages of production and application, except 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)

Classification

Chip labels Customisation of smart labels is available with chip cards. Also combinations of magnetic stripes with RFID chips are used, especially for credit cards.

Printable labels Replacing silicon processors, smart tags that are printed collect information themselves and process it. The result of decades of research and development by ThinFilm Electronics are “printed transistors, the multilayer tags combine a year’s worth of battery power, sensors and a small display, and will initially be used to show a temperature record of perishable food and medications. Roughly 3 x 1.5 inches in size and consisting of five layers sandwiched in a roll-to-roll production process, the ThinFilm labels use the company’s own ferroelectric polymer technology for storing information. Chains of non-toxic polymers can be flipped between two orientations – representing binary “0″ and “1″ – to store non-volatile data.”

Electronic labels While price increases when labels are electronic, the very small percentage of labels that are electric is increasing. Electronic labels have features that supersede non-electronic labels. Electronic versions can signal what is happening in real-time and most can store a digital record.

Application Smart labels are applied directly to packages or to pallets or other shipping containers. The application directly to the product is still of neglectible importance due to the following:

Cost of the labels, which may be justified easier for agglomerations of more than one product All products that are metallic, liquid or sufficiently high in electrical permittivity, work to reflect or reduce the radio waves Handling, which normally addresses the package and lesser the unpacked product.

Use The technologies with the smart labels are all mature and well standardised. After the 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, the integration of RFID to handling processes requires sound engineering to ensure the balance of benefit and effort. In 2008, ThinFilm and Polyera announced their partnership to produce high volumes of smart labels. The collaboration brings printed integrated systems, such as smart sensor tags, closer to commercial availability.

See also Barcode Barcode#2D barcodes Radio-frequency identification Track and trace

References

Worked examples

Example 1 — a first encounter with Smart label

Start with the simplest possible case. Write down what Smart label claims or describes in one sentence, then invent the smallest concrete situation in which that sentence is true. In engineering, the smallest case is usually a single object, a single equation or a single measurement. Check that every symbol or term in your sentence has a meaning in that case.

Example 2 — changing one variable

Take the situation from Example 1 and change exactly one quantity: double it, halve it, or set it to zero. Predict what should happen to Smart label before you calculate. Comparing your prediction with the result is the fastest way to find out whether you understand the idea or only the words.

Example 3 — an exam-style question

Typical questions about Smart label ask you to (a) state it precisely, (b) apply it to given data, and (c) explain a limitation. Practise writing all three answers in under five minutes; the third part is what separates a full-mark answer from an average one.

Applications of Smart label

In research: Smart label appears in engineering research whenever the underlying quantities have to be modelled precisely. Papers usually cite it as a starting assumption and then explore where it breaks down.
In technology and industry: Engineering practice reuses Smart label in design rules, simulations and safety margins. Knowing the idea lets you read a specification sheet and understand why the numbers look the way they do.
In the classroom: Smart label is common in secondary-school and first-year university syllabi. It links to neighbouring topics Automatic identification and data capture, Labels, Packaging materials, so understanding it makes those chapters shorter.
In everyday life: Look for Smart label outside the textbook — in sport, cooking, traffic, electronics or the sky above you. An example you found yourself is remembered far longer than one you were given.

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How to study Smart label in 20 minutes

Read the reference excerpt below once, without taking notes.
Close the page and write down what Smart label means in your own words.
Compare your version with the excerpt and mark what you missed.
Work through the three examples above with pen and paper.
Explain Smart label out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is Smart label in simple terms?

Why does Smart label matter?

Because it connects several engineering ideas at once: it gives you a definition you can apply, a quantity you can calculate, and a way to check whether a result is plausible.

How should I study Smart label?

Read the excerpt, restate it from memory, then work through the examples and applications listed on this page. The five-step study plan above takes about twenty minutes.

What does this page cover?

It gives you a compact reference excerpt plus original lgStudy explanations, examples, applications and study material on Smart label.