Techedge S.p.a.
Enabling Technologies
Products are labelled with RFID and NFC tags to allow the interaction with the web application.
These tags are passive tag, so they do not have their own power supply, but are activated only when they receive an impulse from a reading or writing device. Tags can be used to store some information such as a unique identifier, other types of information or a link to a website, in the form of URL.
RFID and NFC are standard communication protocols that are quite similar in principle but have some important differences that result in completely different application scenarios.
Within this solution, both technologies were employed to provide the most effective and efficient access to data to all stakeholders.
At industrial scale, RFID UHF (Ultra High Frequency) is more convenient, since it allows a longer reading range and it makes it possible to scan multiple tags in a single shot. This can be useful to rapidly access information about a whole batch of products, for instance in a warehouse or in a recycling facility. RFID UHF tag, as the name suggests, operates at high frequencies (860-960 MHz), so to scan them a specifically built reading device is required.
On the opposite, NFC technology operates at lower frequencies (13,56 MHz) which are easily accessible even to common smartphones, that’s why most of them are provided with an embedded NFC reader. This is a very interesting opportunity, because it supports user-centered interactions with the product, since everybody has a smartphone and no further equipment is needed. Operating at lower frequencies than RFID UHF, NFC only work at a close distance, because the radiofrequency employed is less energetic. For this reason, the user has to closely scan the product with his own smartphone (a few cm of distance). Within the context of Repair3D, NFC technology is useful to provide the user engagement and support his interaction with the product. In this manner, the customer can access to product information and get tips on how to best use and recycle it.