NFC stickers are small, stickable data carriers based on Near Field Communication (NFC) technologie. It usually consists of a thin chip and an antenna surrounding the chip, and through the principle of electromagnetic induction, it carries out non-contact data interaction with NFC-enabled devices. NFC stickers are thin and lightweight, and can be easily affixed to the surface of a variety of objects, such as mobile phones, laptops, wallets and so on, to provide users with convenient data storage and interaction functions.

NFC stickers can be divided into various types according to different processing methods, materials and functions:

Wet inlay: This is a semi-finished form of NFC sticker, which already has all the functions of the tag, the surface is transparent and the antenna coil can be directly seen, suitable for sticking to the surface of the product or attaching to the inside of the item.

Ordinary labels: made from dry inlays or wet inlays and then composite by surface, with a variety of surface materials and customisable patterns, which are generally pasted on the outer surface of the item for direct scanning.

Fragile label: It has the effect of anti-transfer, and can no longer be completely removed after being attached to the surface of the item, otherwise the label will be invalid, which is suitable for use in the field of commodity anti-counterfeiting.

Anti-metal tags: A layer of absorbing material is laminated on the back of ordinary labels, so that it can work normally on the metal surface without being interfered with by metal.

Printed labels: The antenna is directly printed on the substrate with conductive ink, which is suitable for anti-counterfeiting certification of documents, certificates and commodities.

Epoxy label: A layer of transparent soft epoxy glue is laminated on the surface, which not only protects the surface but is also beautiful and generous, suitable for personal use.

The common parameters of NFC stickers mainly include:

• Operating frequency: usually 13.56MHz, which is the standard operating frequency for NFC technologie.
• Storage capacity: varies depending on the chip type, but is generally sufficient to store data such as WiFi passwords and access card information.
• Communication distance: NFC technology has a short communication distance, typically within 10 centimètres, ensuring the security and reliability of data transmission.
• Operating temperature: NFC stickers can usually operate normally within a certain temperature range, such as -20°C to 70°C, adapting to various environmental conditions.

NFC stickers have a variety of functions, mainly including:

• Analog electronic lock: By writing the access card information, the door can be opened without a card.
• One-touch connection: If you write the WiFi password, the phone will automatically connect to the WiFi when it is close.
• Switch trigger: It can be used to control the switch of home appliances, such as smart lights that turn on at the touch of a button.
• Fonction de paiement: Bind bank card or payment platform to achieve cashless and convenient payment.
• Information transmission: Text, business cards, URLs and other information can be written for other NFC devices to read.

NFC stickers have a wide range of application scenarios and cover many aspects of daily life:

• Home intelligence: Paste it on the entrance door, coffee table, entrance, etc., to realise functions such as automatic Wi-Fi connection, screen projection TV, and safety reporting, and improve the level of home intelligence.
• Système de contrôle d'accès: Replace physical access cards for cardless entry and exit, improving convenience and security.
• Public transportation: Buses and subways in some cities support NFC technology, et NFC stickers can be used as bus cards or metro cards.
• Payment scenario: In shopping places such as supermarkets and shopping malls, the payment can be completed by placing the mobile phone close to the NFC sticker, simplifying the shopping process.
• Product anti-counterfeiting: Special types of NFC stickers such as fragile tags and anti-metal tags can be used for product anti-counterfeiting and traceability to protect consumer rights and interests.

In short, NFC stickers, as a technical product that integrates convenience, practicality and intelligence, are gradually changing our lifestyle. With the continuous advancement of technology and the continuous expansion of application scenarios, NFC stickers will surely play a more important role in the future.