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The principle and application of RFID?
The basic working principle of RFID technology is not complicated: after the tag enters the magnetic field, it receives the RF signal sent by the reader, and uses the energy obtained by the induced current to send out the product information stored in the chip (passive tag, passive tag), or actively sends out a signal with a certain frequency (active tag, active tag or active tag); The reader reads and decodes the information and sends it to the central information system for data processing.

A complete RFID system consists of reader, electronic tag, so-called transponder and application software system. Its working principle is that the reader sends radio wave energy of specific frequency to the transponder, which drives the transponder circuit to send internal data. At this point, the reader sequentially receives the interpreted data and sends it to the application for corresponding processing.

As far as communication and energy induction between RFID reader and electronic tag are concerned, they can be roughly divided into two types: inductive coupling and backscattering coupling. Generally, the first type is used for low-frequency RFID, while the second type is used for high-frequency RFID.

The reader can be a reading or reading/writing device according to the used structure and technology, and it is the information control and processing center of RFID system. The reader usually includes a coupling module, a transceiver module, a control module and an interface unit. Generally, half-duplex communication is used to exchange information between reader and transponder, and the reader provides energy and time sequence to passive transponder through coupling. In practical application, management functions such as collection, processing and remote transmission of object identification information can also be realized through Ethernet or WLAN. Transponder is the information carrier of RFID system. At present, most transponders are passive units composed of coupling elements (coils, microstrip antennas, etc.). ) and microchips.

1. product performance: since the frequency of most products is between 868MHz and 9 15MHz, the requirements for corresponding read-write devices in the system can be reduced and the sensitivity to frequency deviation can be reduced.

2. Product compliance: EPC grade 1 GEN 2 and ISO 18000-6C.

3. Professional services: make targeted use of the world's advanced product experience and make specific consideration for commonly used products.

4. Application fields: logistics and supply management, manufacturing and assembly, air baggage handling, mail, express parcel handling, document tracking, library management of animal identification, sports timing, access control, electronic tickets, automatic road charging, from large-scale long-distance UHF tags to small-scale UHF tags. Can do customized production for customers to meet various requirements.

RFID description

It conforms to various international standards such as ISO 15693, ISO 18000-6B and EPC G2. Different antenna designs and packaging materials can be used to make various kinds of labels, such as vehicle labels, pallet labels, logistics labels, metal labels, book labels, liquid labels, personnel access control labels, air ticket labels, luggage labels and so on. Customers can choose or customize the corresponding electronic tags according to their needs.

insertion

Can be packaged into various forms of electronic labels. Used for label production of label converters and OEM customers, as well as mass production. ...

label

Peel off the backing paper and paste it directly on the paper packaging box to realize the process of "paste and send". Suitable for logistics, supply chain management, etc. ...

Standard card

PVC laminated standard card, held in your hand or hung on your chest. Mainly used in personnel management, book management and vehicle management. ...

Metal label

The metal label can be directly attached to the equipment with metal shell. It is mainly suitable for asset management fields such as chassis and board cards. ...

Vehicle label

Directly adhered to the upper inner surface of the automobile windshield or inserted into the label holder. Mainly used in automobile management and other fields. ...

Hangtag label

Hanging on the object to be identified. Mainly used for high-end clothing management and asset management. ...

Animal label

Use special ear tag pliers to attach labels to the ears of livestock. Mainly used for breeding, epidemic prevention and meat quarantine. ...

Tray label

When in use, the label is directly inserted into the slit hole of the plastic tray, or fixed in the center of the wooden pallet with a nail through the positioning hole. Main fitness ...

Ticket label

Hold it in your hand or hang it on your chest. The invention is suitable for the field of conference admission certificate and ticket management. ...

label

Tear off the backing paper and stick it directly on the identified object. It is mainly suitable for air baggage management, postal parcel management and logistics tracking management. ...

Book title label

Paste it directly into the book. Mainly used in libraries, bookstores and other places. ...

Jewelry label

When in use, all kinds of jewelry can be hung on the ring of the label and can be used normally, which is convenient for the jewelry industry to manage all kinds of jewelry products.