RFID anti-metal tags are a smart choice to make item management more efficient and accurate

RFID (Radio Frequency Identification) technology is a technology that transmits and reads data through radio signals. It is widely used in fields such as logistics management, inventory management, vehicle management, and anti-counterfeiting traceability. However, because metal has the characteristics of interfering with and absorbing radio signals, there will be some problems when using RFID technology in a metal environment.

1. The principle of anti-metal tags

The principle of RFID technology is to generate a high-frequency electric field through an antenna. When the signal sent by the reader encounters the antenna on the tag, an induced current will be generated. The frequency of the induced current is the same as the frequency of the received high-frequency signal. After the chip receives the induced current, it generates electrical energy, activates the circuit inside the chip, reads the data from the storage area and sends it back to the reader. However, when the tag is placed on a metal surface, the radio waves reflected by the metal surface will interfere with the radio waves received by the tag, affecting the tag's reading distance and accuracy, or even reading failure.

Hard case metal resistant tags

To solve this problem, anti-metal tags were introduced. The anti-metal tag optimizes the antenna structure. By reducing the size of the antenna and changing the shape of the antenna, the tag is closer to the state of a half-wavelength antenna, thereby reducing the interference of reflected waves. In addition, anti-metal tags can further reduce the impact of reflected waves on tag reading and writing by setting up multiple antennas and adding buffers.

2. Function of anti-metal tags

Anti-interference: Anti-metal labels can eliminate the interference of metal surfaces on label work and improve the recognition rate and reliability of labels.

Long-distance reading: Anti-metal tags can maintain a longer recognition distance on metal surfaces than ordinary tags.

Stability: Due to the impact of metal surfaces on tag reading, ordinary tags may have inconsistent reading results in different environments, while anti-metal tags have more stable and reliable reading and writing capabilities on metal surfaces.

small pcb anti metal label

3. Characteristics of anti-metal labels:

Waterproof and abrasion resistance: Since anti-metal labels are mainly used in logistics, inventory management and other fields, and are often exposed to water, collision, friction and other scenarios, anti-metal labels usually have good waterproof, anti-collision and durability properties.

Suitable for metal surfaces: Compared with ordinary tags, anti-metal tags can better adapt to the use environment of metal surfaces and can read tag data faster on metal surfaces. They are very useful for managing steel coils, machine parts and other items. Good help.

Reusability: Metal-resistant tags can often be read and written multiple times and can be used multiple times during the life cycle of the item, thereby increasing usage efficiency and reducing costs.

4. Application scenarios of anti-metal labels:

Logistics Management: During the logistics process, items often need to be loaded in metal boxes or metal shelves. The use of anti-metal labels can more stably identify item information and effectively improve the efficiency of logistics.

Vehicle management: In the field of vehicle management, it is usually necessary to install tags on vehicles to track and manage vehicle information. However, vehicles usually have metal surfaces, and anti-metal tags can better adapt to the metal surfaces on vehicles, improving the tag's reading efficiency and accuracy.

Flexible anti-metal label applications

Parts management: In the fields of automobiles, aviation, electricity, etc., anti-metal labels are often used to track and manage various parts, which can improve the efficiency of parts tracking and inventory management.

Factory production equipment management: In industrial scenarios, anti-metal tags can be used to manage equipment operating status, maintenance records and other information, which can improve the accuracy and efficiency of equipment management.

Logistics and distribution: In the field of logistics, anti-metal labels can track the location of goods, transportation routes and other information, improving the accuracy and efficiency of logistics and distribution.

Identification management in dangerous places such as oil and water: Since anti-metal labels are waterproof, anti-collision, and durable, they can be used for identification management in dangerous places such as oil and water, which can improve the safety and efficiency of the workplace.

Anti-metal tags

Anti-metal tags are an important part of RFID technology. Due to their long identification distance and strong anti-interference ability, they have been widely used in logistics, vehicle management, dynamic leasing and other fields. In the future, with the development of the Internet and the Internet of Things and the popularization of intelligence, anti-metal tags will have wider application scenarios and greater market demand.