RF cards operate in a non-contact mode during reading and writing, which significantly reduces the risk of errors caused by poor contact. This feature also protects the card from external factors like dust, oil, and moisture, ensuring reliable performance in harsh environments.
The operation is both simple and efficient. RF cards use wireless communication technology, allowing them to be used without any specific orientation. This makes them incredibly user-friendly and suitable for fast-paced environments where time is essential.
RF cards are equipped with an advanced anti-collision mechanism that prevents data interference between multiple cards. This enables the reader to process several cards simultaneously, improving efficiency and reducing wait times.
One card can serve multiple purposes due to its partitioned memory structure. Each partition can have its own password and access settings, making it ideal for different applications such as transportation, access control, and payment systems—all on a single card.
Compared to traditional contact-based IC cards, RF cards offer several key advantages:
First, they are highly reliable. Since there’s no physical contact between the card and the reader, issues like misinsertion, foreign object interference, or dirt-related malfunctions are eliminated. This makes them more durable and less prone to failure.
Second, there are no exposed chips on the surface of the card, which means it’s less likely to suffer from damage due to bending, static electricity, or chip detachment. This adds to its long-term durability.
Third, the non-contact nature of RF cards allows users to simply wave the card near the reader, typically within a range of 1cm to 10cm. This eliminates the need for inserting or removing the card, making the process much faster and more convenient.
Fourth, the anti-collision feature ensures that even when multiple cards are present, the system can still process each one accurately without data conflicts. This is especially useful in high-traffic areas like public transport or parking lots.
Fifth, RF cards are versatile and can be adapted to various systems. Their flexible memory structure allows users to set different passwords and access rules based on the application, making them suitable for everything from access control to loyalty programs.
Lastly, they offer strong security features. Each RF card has a unique serial number that is pre-programmed at the factory and cannot be altered. Additionally, a two-way authentication process ensures that both the card and the reader verify each other before any data exchange takes place. All communications are encrypted, and each sector on the card can have its own password and access conditions, providing an extra layer of protection against unauthorized access.
Today, RF cards are widely adopted around the world, including in major cities like Seoul, Brazil, and Canada, where they are used in bus and subway systems. In China, cities such as Shanghai, Zhuhai, and Taiyuan have also implemented RF-based smart cards for public transportation, toll collection, parking management, access control, time attendance, and retail payments. These cards have become an integral part of daily life, offering convenience, security, and efficiency in a wide range of applications.
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