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Working Principles and Applications of RFID Labels

RFID labels consist of coupling components and chips. Each RFID label has an electronic code attached to an object to identify the target object, also called electronic tags or smart tags. RFID labels are divided into active tags, passive tags and semi-active and semi-passive tags.

Working principle of RFID labels

When the tag enters the magnetic field, it receives the radio frequency signal sent by the reader, and sends out the product information stored in the chip obtained by the induced current or actively sends a signal of a certain frequency. The reader reads and decodes the information and sends it to the management information system for related data processing.

With the progress and development of society, countries and regions such as the European Union, the United States, Japan, and South Korea have successively introduced tire label laws, requiring tires to be labeled to indicate the fuel efficiency, rolling resistance, rolling noise, and wet traction grade of tires. At present, China's tire label system is also vigorously promoting.

Application of RFID labels in tires

Currently, the traceability label identification of tires on the market generally uses the form of "barcode + tire sidewall information" to store various information of the tire. However, both the barcode and sidewall information are located on the surface of the tire body, which will wear off quickly after the tire is used. Once these information cannot be visually observed, it means the loss of tire information, and the identification of tire model, tread, diameter and other information cannot be distinguished. If there are situations, such as illegal or unsafe use of tires (unqualified tires, overloaded use, expired use, etc.), it will directly cause difficulties in the use, maintenance and claims of users, leading to disputes, and even frequent safety accidents, waste of energy resources, and damage to the environment.

However, the application of RFID labels technology can regulate the tire industry for orderly production and sales (preventing counterfeiting, label switching, and counterfeiting), realizing tire life cycle management; regulating the transportation industry to ensure the safety of personal and property; promoting and regulating the tire retreading industry, realizing tire recycling economy. The RFID technology in the tire industry is demonstrated as follows: the electronic tag is implanted into the tire during the tire forming process, and can withstand deformation, high temperature and high pressure during the tire forming and vulcanization process. The finished tire is tested for reliability, such as X-ray detection, air bubble inspection, dynamic balance and uniformity testing, and durability testing.

It can be seen that the combination of RFID technology and tire manufacturing technology can not only solve the problems encountered in the current tire identification and traceability processes but also write tire production data, sales data, usage data, retreading data, etc., by planting RFID labels inside the tire, and the corresponding data can be collected and read at any time through the terminal. In combination with the corresponding management software, the recording and traceability of tire life cycle data can be realized.



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