What is RFID electronic tag
RFID electronic tags are data carriers used for item identification, with information storage mechanisms, capable of receiving electromagnetic field modulation signals from readers and returning response signals. They are commonly referred to as electronic tags, but can also be called radio frequency cards, radio frequency tags, radio frequency labels, etc. They are the hardware components of RFID systems that work together with readers and writers. The basic components of an RFID system include RFID electronic tags, readers, RF antennas, and application software. It is an automatic identification system that uses RFID technology for data collection and transmission.

Under the trend of intelligent manufacturing, RFID, as a non-contact automatic identification technology, can automatically identify target objects and obtain relevant data through radio frequency signals. RFID implementation and deployment costs are low, and data collection and transmission methods are very convenient, which has attracted increasing attention from enterprises.

Working principle of RFID sub tags

RFID electronic tag technology is a technology that uses radio waves for automatic identification and tracking. During the production process, it is necessary to use RFID electronic tag readers to convert designs or images into RFID electronic tags. RFID electronic tags are usually composed of chips and antennas. The chip stores tag information, while the antenna is used for receiving and transmitting signals. When the RFID electronic tag passes through the reader, the reader emits radio waves, which are reflected by the RFID electronic tag and transmit information to the reader. Readers can read and write tag information, thereby achieving automatic recognition and tracking.

RFID classification
RFID electronic tags can be divided into four types based on the frequency band: low frequency (LF), high frequency (HF), ultra-high frequency (UHF), and microwave (MW).

01 Low frequency
The operating frequency range of low-frequency (LF) RFID tags is 30kHz to 300kHz, with typical operating frequencies of 125KHz and 133KHz. This type of RFID tag usually has a short recognition distance, generally less than 1 meter. Due to its low frequency, low-frequency RFID tags perform well in anti-interference ability and adaptability, and are suitable for some scenarios with low data collection requirements and strict environmental requirements, such as pet recognition, animal tracking, etc. The price of low-frequency RFID tags is relatively low and the cost is also relatively easy to accept.

02 High frequency
The operating frequency range of high-frequency (HF) RFID tags is 3MHz~30MHz, with a typical application frequency of 13.56MHz in practical applications. Compared with low-frequency RFID electronic tags, high-frequency RFID tags store more data and have a longer recognition distance, generally less than 1.5 meters. High frequency RFID tags are widely used in logistics, inventory management, access control and other fields. Due to their high frequency, the data transmission speed of high-frequency RFID tags is relatively fast, making them suitable for scenarios that require frequent data exchange.

03 Ultra high frequency
The operating frequency range of ultra-high frequency (UHF) RFID tags typically operates in the frequency range of 860MHz to 960MHz. Ultra high frequency RFID tags have fast transmission speed, long reading distance, and large storage capacity. The maximum recognition distance can reach more than 10 meters, with high reading speed and large-scale tag reading capability. Therefore, in large-scale application scenarios such as retail, logistics distribution, and vehicle identification, ultra-high frequency RFID tags have been widely used.

04 Microwave
Microwave (MW) RFID tags typically operate in the frequency range of 2.45 GHz or 5.8 GHz. Microwave RFID tags have longer recognition distances and higher data transmission speeds, making them suitable for scenarios that require high data transmission speeds and recognition distances, such as intelligent transportation, intelligent manufacturing, and other fields.

Multiple advantages of RFID electronic tags
01 can recognize individual, very specific objects, unlike barcodes that can only recognize one type of object; It can read multiple objects simultaneously, while barcodes can only read one by one;
02 uses radio frequency technology. Due to the penetrability of radio frequency technology, data can be read through external materials, while barcodes must rely on laser or infrared to read information on the surface of the material medium. RFID tags can be operated non-contact without exposing the tag for scanning.
RFID electronic tags have characteristics such as waterproofing, demagnetization, and high temperature resistance that barcodes do not possess. They have low environmental requirements and can work in various harsh environments. The tags are not easily damaged and do not affect reading.
04 can recognize data with high accuracy, speed, and wide range, making it suitable for recognition and reading on fast-moving objects. At the same time, tag data can be encrypted, storage capacity can be increased, and storage information can be easily changed.
05 Automation and intelligence, reducing manual operations. This is also why RFID tags are known as smart tags and play an important role in intelligent construction, such as smart homes, smart healthcare, smart transportation, and other fields.

Application of RFID electronic tags
At present, RFID electronic tags are widely used in various fields such as production, logistics, and transportation.
(1) Production line management. RFID electronic tags can conveniently and accurately record process information and operation information, meeting the needs of flexible production. The recording of worker ID, time, operation, and quality inspection results can fully achieve traceability in production and avoid errors caused by human factors during the production process.
(2) Warehouse management. RFID electronic tags can effectively solve the information management of stored goods, and can real-time understand the location and storage situation of goods, which plays an important role in improving storage efficiency and guiding production.
(3) Valuable item management. RFID electronic tags can be used for anti-theft, settlement, and after-sales guarantee of valuable items such as cameras, camcorders, portable computers, CD players, jewelry, etc. Specialized shelf scanners will scan the goods in real-time and obtain real-time records of the goods.
(4) Management of books and rental products. By attaching RFID electronic tags to books, it is easy to receive book information, and there is no need to move books when organizing them, which improves work efficiency and avoids work errors.
(5) Product anti-counterfeiting. The exclusive RFID electronic tag of the product can record all information from the source manufacturer to the sales terminal, including the unique code in the electronic tag, the difficulty of counterfeiting the electronic tag, and the automatic detection feature of the electronic tag, making the electronic tag have anti-counterfeiting and anti-theft functions. The use of RFID electronic tags on products can also play a role in brand protection, and can be widely used in identity recognition fields such as pharmaceuticals, access control, tickets, etc.

Future Development Trends of RFID Electronic Tags
With the increasing application of RFID electronic tags, RFID electronic tags will also develop in the following directions:
With the development of the printing industry, the quality requirements for printed materials are becoming increasingly high. In the future, RFID electronic tags will also develop towards high precision, generating higher quality printing layouts.
2. With the increasing demand for production efficiency, the production speed of RFID electronic tags is also required to be faster. In the future, RFID electronic tags will develop towards rapid development, further improving production speed and efficiency.
3. With the development of artificial intelligence technology, RFID electronic tags will move towards intelligence. In the future, artificial intelligence technology can be used to automatically identify, process, and optimize designs or images, and generate high-quality printing layouts. With the continuous upgrading and improvement of RFID technology, the production of RFID electronic tags will become more intelligent in the future, achieving higher levels of automation and intelligence.
4. With the development of digital technology, RFID electronic tags will move towards digitalization. In the future, digital technology can be utilized to achieve fully digitized, automated, and intelligent production processes.
5. With the advancement of technology and the expansion of applications, the production cost of RFID electronic tags will continue to decrease, and more and more enterprises and institutions will begin to apply RFID technology.
6. With the continuous development of RFID technology, reading speed and data transmission speed are constantly improving, which can achieve more efficient item identification and tracking.
7. With the continuous development of RFID technology and the expansion of application fields, RFID electronic tags will be applied in more fields and achieve more applications in the future. In short, with the continuous advancement of technology and the expansion of application fields, RFID electronic tags will develop towards low-cost, high-efficiency, intelligent, and multi application directions, providing more efficient, accurate, and intelligent support for the development of various fields.

RFID readers with different frequencies have unique advantages in their respective fields, and choosing the appropriate frequency is crucial for maximizing the benefits of RFID technology. The widespread application of RFID technology has brought about intelligent changes to various industries, improving work efficiency and data transmission rates, and providing strong support for future digital transformation.