The Working Principle AndApplication Scenarios Of RFID Technology

The Working Principle AndApplication Scenarios Of RFID Technology

Nov 30, 2019

RFID is a wireless communication technology that can identify specific targets and read and write related data through radio signals without the need to establish mechanical or optical contact between the identification system and the specific targets.

A complete RFID system is composed of a reader, an electronic tag, a so-called transponder, and an application software system. The working principle is that the Reader transmits radio frequency energy of a specific frequency, which is used to drive the circuit to send out the internal data. At this point, the Reader receives the interpretation data in order and sends it to the application for corresponding processing.

From the perspective of communication and energy induction methods between RFID credit card reader and electronic tags, it can be roughly divided into two types: inductive coupling and backscatter coupling.The reader usually consists of a coupling module, a transceiver module, a control module and an interface unit. The reader and transponder generally use half-duplex communication to exchange information. At the same time, the reader provides energy and timing to the passive transponder through coupling.

In practical applications, management functions such as collection, processing, and remote transmission of object identification information can be further realized through Ethernet or WLAN. The transponder is the information carrier of the RFID system. Most of the transponders are passive units composed of coupling elements (coils, microstrip antennas, etc.) and microchips.

Main application:
1. Application of library management system
2. Gas cylinder management application
3. Management and application of clothing production line and logistics system
4. Three-meter pre-charge system
5. Management and application of hotel door locks
6. Large conference personnel channel system
7. Management system of fixed assets
8. Management and application of pharmaceutical logistics system
9. Management of smart shelves
10. Jewelry inventory management.

Each label has unique identification information. The label is bound to the product information during the production process. In the subsequent circulation and use, the label uniquely represents the corresponding product. Whether the user wants to verify before, during, or after the sale, it can be verified in a very simple way.

In order to consider the security of information, the application of RFID in anti-counterfeiting generally uses 13.56M frequency band tags. Active RFID Tag cooperate with a unified distributed platform, which constitutes a complete process of anti-counterfeiting products.

In general, RFID plays an irreplaceable role in our lives, ranging from bus cards, access cards, and mifare ultralight card. As big as the Internet of Things, asset and equipment management, it can be regarded as a very important step in the development of modern scientific and technological civilization.

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