CN110751253A

CN110751253A - Special radio frequency identification tag for leather industry

Info

Publication number: CN110751253A
Application number: CN201810818895.8A
Authority: CN
Inventors: 叶利云
Original assignee: Individual
Current assignee: Individual
Priority date: 2018-07-24
Filing date: 2018-07-24
Publication date: 2020-02-04

Abstract

The invention relates to the electronic industry, in particular to a special radio frequency identification tag for the leather industry, which comprises a PET layer, an adhesive layer and release paper; the PET layer is internally provided with an antenna and a chip; the antenna is connected with the chip; the antenna comprises a coil and a loop antenna; one end of the loop antenna is connected with the coil, and the other end of the loop antenna is connected with the chip; the identification frequency of the antenna in the air is 890-950 MHz, and when the antenna is arranged in a leather tool, the identification frequency is 920-925 MHz; the beneficial effects are that: the identification frequency in the production process of the leather products is stabilized, and deviation cannot be generated due to the leather products, so that the reading distance is increased; the product has strong damage resistance and long service life, is widely applied to leather products, bags and shoes industries, and provides better solutions for anti-counterfeiting, anti-fleeing, supply chain management, store management, warehouse management and the like.

Description

Special radio frequency identification tag for leather industry

Technical Field

The invention relates to the electronic industry, in particular to a special radio frequency identification tag for the leather industry.

Background

An antenna, which is a component used in a radio apparatus to transmit or receive electromagnetic waves, converts a guided wave propagating on a transmission line into an electromagnetic wave propagating in an unbounded medium (usually, free space), or converts an electromagnetic wave propagating in an unbounded medium into a guided wave.

Rfid (radio Frequency identification) technology, also called radio Frequency identification, is a communication technology that can identify a specific target and read and write related data through radio signals without establishing mechanical or optical contact between an identification system and the specific target. The RFID products with different frequency bands have different characteristics, the working frequency of the RFID products is defined to have different products which meet different standards in the frequency ranges of low frequency, high frequency and ultrahigh frequency, and the RFID products with different frequency bands have different characteristics. The uhf system transfers energy through an electric field. The electric wave in the ultrahigh frequency band cannot pass through many materials, particularly suspended particulate matters such as metal, liquid, dust, fog and the like, so that the influence of the environment on the ultrahigh frequency band is great, and the leather products are in the range of influence.

After a common ultrahigh frequency passive product is attached to the inside of a leather product, the frequency can shift, and the direct expression is the reduction of the reading distance: in the existing radio frequency identification antenna with the same size on the market, the common reading distance in the air is 1-1.5 m, and the reading distance is reduced to 0.5-1 m after the antenna is implanted into a leather product, so that the use requirement cannot be met; in the production process of leather products, because the welding strength of the chip and the antenna is not enough and physical protection is lacked, the leather products are easily damaged by external force in the using process; the improper use of the non-setting adhesive can cause the occurrence of the conditions of glue overflow, degumming and the like, and the leather products are poor.

Disclosure of Invention

Aiming at the defects of the prior art, the invention adopts the following technical scheme:

a radio frequency identification label special for leather industry,

comprises a PET layer, a sticking layer and release paper; the PET layer is internally provided with an antenna and a chip; the antenna is connected with the chip; the antenna comprises a coil and a loop antenna; one end of the loop antenna is connected with the coil, and the other end of the loop antenna is connected with the chip;

the identification frequency of the antenna in the air is 890-950 MHz, and when the antenna is arranged in a leather product, the identification frequency is 920-925 MHz.

Preferably, the opening of the loop antenna is provided at the center of the long side of the loop antenna.

Preferably, the lower surface of the PET layer is adhered to the upper surface of the release paper through an adhesive layer.

Preferably, the adhesive layer is a non-setting adhesive.

Preferably, the chip is NXP Ucode 7.

Preferably, the length of the antenna is 47.6mm, and the width of the antenna is 9.8 mm.

The invention has the beneficial effects that:

1. the identification frequency in the production process of the leather products is stabilized, and deviation cannot be generated due to the leather products, so that the reading distance is increased;

2. through the design of the PET layer, the product has strong flexibility, the damage resistance of the product is greatly enhanced, and the product is prevented from being damaged by external force in the using process;

3. the product has long service life, is widely applied to leather products, bags and shoes industries, and provides better solutions for anti-counterfeiting, anti-fleeing, supply chain management, store management, warehouse management and the like.

Drawings

The invention will be further described with reference to the accompanying drawings and examples, in which:

FIG. 1 is a diagram of a product of the present invention;

FIG. 2 is a side view of the present invention;

FIG. 3 is a graph showing the variation of the read distance of an electronic tag in air at various frequencies;

FIG. 4 is a dimensional view of the present invention;

in the figure: 1PET layer, 2 antenna coil, 3 chips, 4 paste the layer, 5 from type paper.

Detailed Description

The invention is further illustrated with reference to the accompanying drawings:

as shown in fig. 1 and 2, the invention provides a special radio frequency identification tag for leather industry, which comprises a PET layer 1, an adhesive layer 4 and release paper 5. An antenna 2 and a chip 3 are arranged in the PET layer 1, and an antenna 22 is connected with the chip 3.

After the common ultrahigh frequency passive product is arranged inside the leather, the common ultrahigh frequency passive product is easily damaged by external force in the using process due to insufficient welding strength of the chip and the antenna and lack of physical protection in the leather production process. The setting on PET layer makes the label flexible, prevents that the label from losing, has just strengthened product endurance greatly, prolongs the life of product.

The antenna 2 includes a coil 21 and a loop antenna 22, one end of the loop antenna 22 is connected to the coil 21, the other end is connected to the chip 3, and an opening of the loop antenna 22 is provided at the center of the long side of the loop antenna 22.

In one embodiment of the present invention, the loop antenna 22 is soldered to the chip 3.

The electric wave in the ultrahigh frequency band cannot pass through many materials, particularly suspended particulate matters such as metal, liquid, dust, fog and the like. The environment has a great influence on the electric wave of the ultra-high frequency band, including the influence of leather products on the electric wave of the ultra-high frequency band. As shown in fig. 3, the reading distances of the electronic tags of various identification frequencies were tested in air. In a test environment, the humidity of air is 35-80%, and the temperature is 18-25 ℃. In the same test environment, the identification frequency of the tested electronic tag is 800-1000 MHz, the reading distance is 0.9-7.8 m, and the reading distance of the electronic tag with the identification frequency of 920-925 MHz is large and can reach 7.3-7.8 m.

After the common ultrahigh frequency passive product is arranged inside the leather product, the frequency can shift under the influence of the common ultrahigh frequency passive product, and the frequency is directly expressed as the reduction of the reading distance. For example, in the radio frequency identification tags with the same size and frequency in the market, the reading distance in the air is 1-1.5 m, and the reading distance is reduced to 0.5-1 m after the radio frequency identification tags are implanted into leather products.

The invention utilizes the design of the antenna to adjust the self resonant frequency to be a fixed value, the identification frequency in the air is 890-950 MHz, and when the antenna is arranged in the leather, the identification frequency is 920-925 MHz.

Fig. 4 shows an embodiment of the present invention, in which the antenna has a length of 47.6mm and a width of 9.8mm, and the antennas 2 are disposed on both sides, and the antennas 2 are symmetric with respect to the chip 3. The antenna 2 consists of a coil 21 and a loop antenna 22, wherein the height of the coil 21 is 9.8mm, the height of the loop antenna 22 is consistent with that of the coil 21, the width and the spacing of the loop antenna 22 are 0.3mm, and the opening of the loop antenna 22 is 0.15 mm. A chip 3 is arranged at a position 1.3mm away from the loop antenna.

The lower surface of the PET layer is adhered to the upper surface of the release paper 5 through the adhesive layer 4, and the adhesive layer 4 is non-setting adhesive.

In a specific embodiment of the present invention, the chip 3 is of a model number NXP Ucode 7.

The production process of the invention comprises the following steps: firstly, a chip 3 is arranged, and antennas 2 are symmetrically arranged on two sides of the chip 3; the antenna 2 consists of a coil 21 and a loop antenna 22, and the coil 21 and the loop antenna 22 on the two sides of the chip 3 are symmetrical left and right relative to the chip 3; one end of the loop antenna 22 is connected with the chip 3, the other end of the loop antenna 22 is connected with the coil 21, and the loop antenna 22 and the coil 21 form an antenna 2; the PET layer 1 can be divided into two layers and connected with the end part, and wraps the antenna 2 and the chip 3.

The working principle of the invention is as follows: when in use, the release paper is taken down, and the identification label is adhered to the inner side of the leather article through the adhesive sticker and is far away from the metal fastener. At the moment, the identification frequency of the tag is 920-925 MHz, and the reading distance can reach 3-4 m. When the identification tag enters a radio frequency electromagnetic field, the identification tag receives a radio frequency signal sent by the reader, product information stored in a chip is sent out by means of energy obtained by induced current, and the reader reads and decodes the information and sends the information to a central information system for related data processing. And the identification tag and the responder exchange information in a half-duplex communication mode.

In addition, the present invention is not limited to the above embodiments, and the technical effects of the present invention can be achieved by substantially the same means, which are within the scope of the present invention.

Claims

1. A special radio frequency identification label of leather products trade which characterized in that:

comprises a PET layer (1), an adhesive layer (4) and release paper (5); an antenna (2) and a chip (3) are arranged in the PET layer (1); the antenna (2) is connected with the chip (3); the antenna (2) comprises a coil (21) and a loop antenna (22); one end of the loop antenna (22) is connected with the coil (21), and the other end is connected with the chip (3);

the identification frequency of the antenna (2) in the air is 890-950 MHz, and when the antenna is arranged in a leather product, the identification frequency is 920-925 MHz.

2. The article of leather industry-specific radio frequency identification tag of claim 2, wherein: the opening of the loop antenna (22) is arranged at the center of the long side of the loop antenna (22).

3. The article of leather industry-specific radio frequency identification tag of claim 1, wherein: the lower surface of the PET layer is bonded with the upper surface of the release paper (5) through the bonding layer (4).

4. The article of leather industry-specific radio frequency identification tag of claim 1 or 5, wherein: the sticking layer (4) is non-setting adhesive.

5. The article of leather industry-specific radio frequency identification tag of claim 1, wherein: the chip (3) is NXP Ucode 7.

6. The article of leather industry-specific radio frequency identification tag of claim 1, wherein: the length of the antenna (2) is 47.6mm, and the width of the antenna is 9.8 mm.