Electronic label system

Abstract

The embodiment of the present application proposes an electronic tag system, including a bolt, a groove is formed on the top of the bolt; an electronic tag substrate is arranged in the groove and used to record wheel information; an antenna is attached to the side of the electronic tag substrate, the top of the antenna is higher than the top surface of the bolt, and the antenna is used to transmit the wheel information as a radio frequency signal between the electronic tag substrate and the external RFID reader; in the above electronic tag system, the antenna of the electronic tag is attached to the side of the electronic tag substrate, so that the side of the electronic tag substrate will also be covered with radio frequency signals, and the antenna is higher than the top surface of the bolt, so that the top surface of the electronic tag substrate is also covered with radio frequency signals, then the RFID reader can read the wheel information from all sides of the electronic tag substrate and the top surface of the electronic tag substrate through the antenna, with a large reading range and not affected by the movement of the wheel. The antenna and the electronic tag substrate are arranged in the bolt groove of the wheel, and will not affect the operation of the wheel.

Description

Technical Field

[0001] The present invention relates to the technical field of radio frequency identification, and in particular to an electronic tag system. Background Art

[0002] Radio frequency identification (RFID) is a wireless communication technology that can identify specific targets and read and write related data through radio without establishing mechanical or optical contact between the identification system and the specific target. Electronic tags, as the physical carrier for tracking target information in radio frequency identification technology, are currently used to record the identity information of wheels, especially train wheels, to assist in monitoring the health of train wheels.

[0003] The traditional way is to design an extremely thin electronic tag and stick it on the wheel hub of the train wheel with adhesive, but the electronic tag is easy to fall off. Another way is to embed the electronic tag into the bolt of the train wheel. Although this is not easy to fall off, during the movement of the train wheel, the electronic tag has to move in a circular motion with the train wheel and in a linear motion with the train wheel. In this case, the direction of the electronic tag antenna also changes in real time, and the radio frequency signal is directional. The RFID reader can only read the wheel information recorded on the electronic tag from the front of the train wheel, and the reading range is small. Summary of the invention

[0004] Based on this, it is necessary to provide an electronic tag system.

[0005] An electronic label system, comprising:

[0006] A bolt, wherein a groove is formed on the top of the bolt;

[0007] An electronic tag substrate is disposed in the groove;

[0008] An electronic tag chip, arranged on the electronic tag substrate, for recording wheel information;

[0009] The antenna is attached to the side of the electronic tag substrate, the top of the antenna is higher than the top surface of the bolt, and the antenna is used to transmit the wheel information in the form of a radio frequency signal between the electronic tag chip and the external RFID reader.

[0010] In the above-mentioned electronic tag system, the antenna of the electronic tag is attached to the side of the electronic tag substrate, so that the side of the electronic tag substrate is also covered with radio frequency signals, and the antenna is higher than the top surface of the bolt, so that the top surface of the electronic tag substrate is also covered with radio frequency signals, then the RFID reader can read the wheel information from the side and top surface of the electronic tag substrate through the antenna, and the signal reading range is large. The antenna and the electronic tag substrate are arranged in the bolt groove of the wheel, and will not affect the operation of the wheel itself, ensuring the safe operation of the wheel.

[0011] In one of the embodiments, the electronic tag system further includes: adhesive filled in the groove and used to fix the antenna and the electronic tag substrate on the bolt.

[0012] In one embodiment, the antenna is attached to the top surface, side surface and bottom surface of the electronic tag substrate, and the top surface of the electronic tag substrate with the antenna attached is higher than the top surface of the bolt.

[0013] In one embodiment, the electronic tag substrate is a rectangular parallelepiped, the top and bottom surfaces of the electronic tag substrate are both squares, and the antenna is attached to the top, bottom and four side surfaces of the electronic tag substrate; the antenna is divided into four parts, and the diagonals of the upper and lower surfaces of the electronic tag substrate and the four side edges enclose the entire surface of the electronic tag substrate into four closed areas, and each closed area is provided with a partial antenna.

[0014] In one embodiment, antennas in adjacent closed areas are spaced apart by a preset distance, and antennas attached to opposite closed areas are also symmetrically arranged.

[0015] In one embodiment, the electronic tag chip is electrically connected to the antenna, and the side of the electronic tag substrate closest to the electronic tag chip serves as the top surface of the electronic tag substrate.

[0016] In one of the embodiments, a groove is provided on the side wall at the bottom of the groove, and the groove is used for engaging with the cured adhesive.

[0017] In one embodiment, the side wall of the groove is provided with threads.

[0018] In one embodiment, a threaded hole is provided at the bottom of the groove, and the threaded hole is used to fill adhesive.

[0019] In one of the embodiments, the cured adhesive covers the electronic tag substrate and the antenna, and covers at least a portion of the top surface of the bolt, and the edge of the adhesive on the top surface of the bolt does not exceed the edge of the top surface of the bolt. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 is a schematic diagram of the structure of an electronic tag system in an embodiment;

[0021] Figure 2 is a schematic diagram of the structure of an electronic tag system in another embodiment;

[0022] Figure 3 is a schematic diagram of an embodiment in which the top surface of an electronic tag substrate with an antenna attached thereto faces upward;

[0023] Figure 4 is a schematic diagram of an embodiment in which the bottom surface of an electronic tag substrate with an antenna attached faces upward;

[0024] Figure 5 is a schematic cross-sectional structure diagram of an electronic tag system in a specific embodiment;

[0025] Figure 6 It is a schematic diagram of the signal reading range of the wheel information in the electronic tag chip when four antennas are symmetrically arranged in a specific embodiment;

[0026] Figure 7 is a schematic diagram of the structure of a bolt in an embodiment;

[0027] Figure 8 is a schematic structural diagram of a bolt in another embodiment;

[0028] Fig. 9 is a schematic cross-sectional structural diagram of an electronic tag system in another specific embodiment;

[0029] Fig.10 is a schematic cross-sectional structure diagram of a cover body 50 in a specific embodiment;

[0030] Fig.11 It corresponds to Fig. 9 A schematic diagram of the three-dimensional structure of the electronic tag system;

[0031] Fig.12 It is a structural schematic diagram of an electronic label system of cylindrical adhesive in a specific embodiment;

[0032] Fig.13 It is a structural schematic diagram of an electronic label system with an oblique adhesive edge in a specific embodiment;

[0033] Fig.14 FIG. 4 is a schematic diagram of the structure of an electronic label system with rounded adhesive edges in a specific embodiment. DETAILED DESCRIPTION

[0034] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0035] Figure 1 FIG. 1 is a schematic diagram of the structure of an electronic tag system in an embodiment. Figure 1 As shown, the electronic tag system includes: a bolt 10, an electronic tag substrate ( Figure 1The electronic tag includes the electronic tag substrate, the electronic tag chip and the antenna 20. A groove 101 is provided on the top of the bolt; the electronic tag substrate is arranged in the groove 101, and the electronic tag chip is used to record wheel information, including wheel identification code and online flaw detection data, etc. The wheel information can be transmitted to the RFID reader in the form of a radio frequency signal; the antenna 20 is attached to the side of the electronic tag substrate, and the top of the antenna 20 is higher than the top surface of the bolt 10. The antenna 20 is used to transmit radio frequency signals between the electronic tag chip and the external reader.

[0036] The electronic tag substrate and antenna 20 are fixed on the bolts and can be fixed with adhesive. Figure 2 The electronic tag system further includes an adhesive 30 filled in the groove 101, which is used to fix the antenna and the electronic tag substrate on the bolt 10. The antenna 20 and the electronic tag substrate are fixed to the bolt 10 by the adhesive 30 and are not easy to fall off. In other embodiments, the electronic tag substrate and the antenna 20 can be fixed to the bolt 10 by other conventional fixing methods in the art, such as welding.

[0037] As for the bolt 10, the bolt 10 can specifically be the oil filling hole bolt of the wheel itself. In this way, the electronic tag composed of the electronic tag matrix and the antenna 20 is placed in the oil filling hole bolt, which will not affect the operation of the wheel. Especially for train wheels, the electronic tag is placed in the oil filling hole bolt, which has high safety.

[0038] For the electronic tag substrate, the electronic tag can be a ceramic electronic tag encapsulated based on ceramic materials. The electronic tag substrate 20 in the electronic tag can specifically be a ceramic substrate, and the antenna 20 can be attached to the ceramic substrate. The electronic tag made of ceramic materials has the advantages of high temperature resistance, small dielectric constant, stable performance, and a long reading distance of up to 25 meters. Specifically, the electronic tag chip can adopt the Monza 4 series tag chip, which has high sensitivity, strong anti-interference ability, high reading and writing reliability, can realize the support design of omnidirectional antenna 20, has large memory, and can store more wheel information.

[0039] Specifically, Figure 3 This is a schematic diagram of the electronic tag substrate with the top surface facing upward. Figure 4 This is a schematic diagram of the electronic tag substrate with the bottom surface facing upward. Figure 3 As shown, the electronic tag substrate 40 is encapsulated with an electronic tag chip 401, which is arranged on the top surface of the electronic tag substrate 40, and the antenna 20 (the black part is the antenna 20) is attached to the surface of the electronic tag substrate 40. The electronic tag substrate 40 is also provided with an antenna interface, and the electronic tag chip is electrically connected to each antenna 20 through the antenna interface. Figure 3 and Figure 4As shown, the antenna 20 is attached to each surface (top surface, side surface and bottom surface) of the electronic tag substrate 40. The top surface of the electronic tag substrate 40 attached with the antenna 20 is higher than the top surface of the bolt. In other embodiments, the antenna 20 may not be attached to the bottom surface of the electronic tag substrate 40.

[0040] Specifically, the distance between the top surface of the electronic tag substrate and the electronic tag chip is smaller than the distance between the bottom surface of the electronic tag substrate and the electronic tag chip, that is, the surface closest to the electronic tag chip can be used as the top surface of the electronic tag substrate.

[0041] Specifically, the top surface of the electronic tag substrate can also be higher than the top surface of the bolt, and the top of the antenna is parallel to the top surface of the electronic tag substrate, so that the antenna is more firmly attached to the side of the electronic tag substrate and the reading range of the electronic tag on the bolt is increased. Figure 5 As shown, antennas 20 are attached to the top and side surfaces of the electronic tag substrate. The top surface of the electronic tag substrate is higher than the top surface of the bolt, so that the top of the antenna on the side surface of the electronic tag substrate can also be higher than the top surface of the bolt, so that the signal reading range on the side surface of the bolt is large. The top surface of the electronic tag substrate is also attached with an antenna, and the wheel information can be read facing the top surface of the bolt.

[0042] As for the antenna 20, specifically, the portion of the electronic tag substrate to which the antenna 20 is attached extends out of the groove and is exposed outside the bolt 10, so that the top of the antenna 20 protrudes from the top surface of the bolt by about 1.5 mm. The antenna 20 extends outward from the bottom surface of the electronic tag substrate, passes through the corresponding side surfaces, and extends to the top surface of the electronic tag substrate. In this way, the antenna 20 passes through the entire side surface of the electronic tag substrate from the bottom surface, and also increases the information reading range of the side surface of the electronic tag substrate. The antenna 20 can be a silver paste antenna printed on the surface of the electronic tag substrate. For example, Figure 3 and Figure 4 In the embodiment, the silver paste antenna can be printed on the six surfaces of the electronic tag substrate which is a ceramic substrate. The antenna 20 can also be a graphene antenna.

[0043] The antenna 20 can be divided into two or more parts, and there is a gap between the antennas of adjacent parts. The antenna of each part will penetrate the corresponding side area of ​​the electronic tag substrate, and the antenna of each part can also cover at least part of the corresponding top surface area of ​​the electronic tag substrate.

[0044] In one embodiment, from Figure 3 and Figure 4It can be seen that the electronic tag substrate 40 is a rectangular parallelepiped, the top and bottom surfaces of the electronic tag substrate 40 are both square, and the antenna 20 is attached to the top, bottom and four side surfaces of the electronic tag substrate 40; the antenna 20 is divided into four parts, and the diagonal lines of the upper and lower surfaces of the electronic tag substrate 40 and the four sides enclose the entire surface of the electronic tag substrate into four closed areas, and each closed area is provided with a part of the antenna. The antennas in adjacent closed areas are separated by a preset distance ( Figure 3 and Figure 4 In the figure, the diagonal lines of the upper and lower surfaces of the electronic tag substrate 40 and the four sides correspond to the parts not covered by the antenna 20, which are the gaps between adjacent antennas. The attached antennas are also symmetrically arranged in the relatively closed area. In this way, the radio frequency signal can be covered from at least the four sides of the electronic tag substrate, thereby improving the signal reading range of the RFID reader on the side of the electronic tag substrate. Specifically, Figure 3 and Figure 4 In the figure, the antennas 20 on the front and rear sides of the electronic tag substrate are symmetrically arranged, the antennas 20 on the left and right sides of the electronic tag substrate are symmetrically arranged, and the antennas in the diagonal areas of the top and bottom surfaces of the electronic tag substrate are symmetrically arranged. The symmetrical arrangement of the antenna 20 is reflected in that the antenna 20 is arranged at the same position in each closed area, the antenna 20 is the same length, and the area covered by the antenna 20 is the same. The antenna 20 is attached to each side, so that at least the radio frequency signal can be covered from each side of the electronic tag substrate, thereby improving the RFID reader's reading range on the side of the electronic tag substrate; and the antennas 20 in the relative areas are also symmetrically arranged, which is conducive to the uniform distribution of the radio frequency signal strength on each side, and is also conducive to reading the wheel information from the top surface of the electronic tag substrate. The antennas in adjacent areas are spaced at a preset distance, so that there is a gap between each two adjacent antennas, and the parameters of the antenna 20 are easily adjusted.

[0045] Figure 6 This is a schematic diagram of the signal reading range of the wheel information in the electronic tag chip when the four antennas 20 are symmetrically arranged. Figure 6 This is a schematic diagram from the perspective of the top surface of the bolt 10. Because the antenna 20 is provided on each side of the electronic tag substrate, the wheel information can be read from the side of the bolt regardless of how the wheel moves, and is not affected by the movement of the wheel.

[0046] The groove formed on the top of the bolt 10 is used to be filled with adhesive to fix the electronic tag. The electronic tag can be fixed with adhesive by the following implementation.

[0047] In one embodiment, see Figure 7The bottom of the groove 101 is also provided with a groove with a diameter less than a preset value and a certain depth. The groove can be a threaded hole 103 for filling the adhesive 30. In this way, the adhesive 30 is not only adhered to the side wall of the groove 101, but also fixed in the threaded hole, increasing the contact area between the adhesive 30 and the bolt 10, so that the electronic tag substrate and the antenna 20 are more firmly fixed on the bolt 10. Further, Figure 6 The side wall of the groove 101 may also be provided with threads.

[0048] In one embodiment, more than one groove may be formed on the side wall of the groove 101. Figure 8 A groove 102 is provided on the side wall at the bottom of the groove 101, and the groove 102 is used to engage with the cured adhesive 30. After the adhesive 30 is cured, it will engage with the groove 102. Through mechanical engagement and the viscosity of the adhesive 30, the electronic tag body and the antenna 20 will be tightly and firmly stuck in the bolt along with the cured adhesive 30, effectively preventing the electronic tag body and the antenna 20 from falling off the bolt 10. For further information, please refer to Figure 8 The bottom of the groove with the groove 102 is also provided with a threaded hole 103 for filling the adhesive 30, which increases the contact area between the adhesive 30 and the bolt. Figure 7 The side wall of the groove 101 may also be provided with threads.

[0049] In one embodiment, the side wall of the groove 101 is provided with threads. If the adhesive 30 is strong enough, the threaded hole 103 and the groove 102 may not be provided. The threads can increase the friction between the cured adhesive 30 and the side wall of the groove 101, improve the viscosity of the adhesive 30, and effectively prevent the electronic tag body and the antenna 20 from falling off the bolt 10. Furthermore, the bottom of the groove 101 provided with threads is provided with threaded holes 103 for filling the adhesive 30, which increases the contact area between the adhesive 30 and the bolt 10 and increases the viscosity of the adhesive 30.

[0050] As for the adhesive 30, the adhesive 30 will cover the electronic tag body and the antenna 20. The adhesive 30 can be epoxy resin or plastic. Epoxy resin has good bonding strength and chemical resistance, and can play a good fixing role on the electronic tag.

[0051] A cover can be used to fill the electronic tag into the groove 101 of the bolt 10. In one embodiment, as Figure 5 and 9 As shown, the electronic tag chip 401 is disposed on the top surface of the electronic tag substrate, and the electronic tag chip 401 is exposed outside the electronic tag substrate. The electronic tag system also includes a cover 50, see Fig.10The bottom of the cover 50 is provided with a first groove 501 for filling the electronic tag substrate with the antenna 20 attached thereto; the bottom of the first groove 501 is provided with a second groove 502 for filling the electronic tag chip 401. Figure 5 and 9 As shown, the cover 50 filled with the electronic tag substrate with antenna 20 and the electronic tag chip 401 is arranged in the groove 101 of the bolt 10; wherein the diameter of the bottom of the cover 50 is smaller than the diameter of the groove 101, so that the cover 50 is easier to fill in the groove 101 of the bolt 10. The cover 50 filled in the groove 101 of the bolt 10 has a gap between its bottom and the bolt 10, and the gap can be filled with adhesive 30. The gap between the cover 50 and the electronic tag chip 401 and the electronic tag substrate can be sealed with epoxy resin. Fig.11 correspond Fig. 9 A three-dimensional schematic diagram of the electronic tag system.

[0052] In this embodiment, the electronic tag is first fixed in the two grooves of the cover 50 by using epoxy resin, and then the cover 50 with the electronic tag fixed is filled into the groove 101 of the bolt 10, and then the cover is fixed on the bolt 10. Figure 5 and Fig. 9 As shown in the figure, after the electronic tag is fixed on the bolt 10 through the cover 50, the top surface of the electronic tag base is higher than the top surface of the bolt, so that the top of the antenna 20 is higher than the top surface of the bolt, and the electronic tag chip is on the top surface of the electronic tag base, which is obviously higher than the top surface of the bolt 10. The diameter of the part of the cover that is higher than the top surface of the bolt 10 is smoothly reduced from bottom to top, so that when the bolt 10 is installed on the wheel using a sleeve, it is easy for the bolt 10 to be inserted into the sleeve. Figure 5 As shown, it can also be Fig. 9 A threaded hole 103 is provided at the bottom of the groove 101 of the middle bolt 10 , and then epoxy resin is poured into the threaded hole 103 , so that the cover 50 can be more firmly fixed on the bolt 10 .

[0053] Alternatively, the electronic tag may be placed in the groove 101 first, and then a mold may be used to fill the groove 101 with plastic by injection molding, so that the entire electronic tag is wrapped in the bolt 10 .

[0054] The cured adhesive 30 covers the electronic tag substrate and antenna 20, and also covers at least part of the top surface of the bolt 10, but the edge of the adhesive 30 does not exceed the edge of the bolt 10. Because the bolt 10 still needs to be installed on the wheel using a sleeve, there is a gap between the cured adhesive 30 and the edge of the bolt 101. Similarly, there is a gap between the adhesive 30 and the sleeve during the sleeve insertion process, so that the adhesive 30 is not squeezed by the sleeve, and the electronic tag substrate and antenna 20 in the adhesive 30 are protected from damage due to squeezing. In addition, the adhesive 30 is not squeezed by the sleeve, which can also prevent the adhesive from falling off.

[0055] In the following three specific embodiments, the portion of the cured adhesive 30 that is higher than the top surface of the bolt 101 has a gap with the edge of the bolt 10 .

[0056] For example, Fig.12 As shown, after the adhesive 30 is cured, it forms a whole with the electronic tag. The portion of the adhesive 30 that is higher than the top surface of the bolt 10 is a cylinder, and the diameter of the cylinder is smaller than the diameter of the bolt 10.

[0057] For example, Fig.13 As shown, the adhesive 30 located on the top of the bolt 10 has an angled edge after solidification. Fig.10 As shown, after curing, the adhesive 30 forms a whole with the electronic tag. The part higher than the top surface of the bolt 10 is a cone. The bottom diameter of the cylinder is equal to the diameter of the bolt 10, and the top diameter is smaller than the diameter of the bolt 10. The longitudinal cross-section of the adhesive 30 is a trapezoid.

[0058] For example, Fig.14 As shown, the adhesive 30 located on the top of the bolt 10 has a rounded edge after solidification. Fig.14 As shown, after curing, the adhesive 30 forms a whole with the electronic tag. The portion of the adhesive 30 that is higher than the top surface of the bolt 10 has a circular cross-section. The two sides of the longitudinal cross-section of the adhesive 30 are smoothly transitioned curves. The bottom diameter of the cylinder is equal to the diameter of the bolt 10, and the top diameter is smaller than the diameter of the bolt 10.

[0059] The inventors tested the reading distances of 15 electronic tag systems proposed in the present application using the same RFID reader under the same test environment, for example, on the same wheel. Specifically, the reading distances when the RFID reader can read wheel information when the angles between the RFID reader and the top surface of the bolt 10 are 0°, 45°, 90°, 135°, and 135°, and the reading distances when the RFID reader reads wheel information from all sides are tested.

[0060] Table 1 shows the reading distance test results of various electronic tag systems, and the unit of distance is meter. The reading rate of the RFID reader is about 150 times / 30s.

[0061]

[0062] It can be seen from Table 1 that the reading distances when the RFID reader is at 0°, 45°, 90°, 135°, and 135° to the top surface of the bolt 10 are basically the same. It can be seen that the electronic tag system proposed in this application can meet the demand for reading information from the top surface of the bolt 10. The reading distances when the RFID reader reads the wheel information from each side are also basically the same. It can be seen that the electronic tag system proposed in this application can also meet the demand for reading information from the side of the bolt 10. Therefore, the electronic tag system of this application has a large signal reading range, and even if the electronic tag system moves in a circle with the wheel, it will not affect the reading of the wheel information. Moreover, the electronic tag is fixed in the bolt 10 by the adhesive 30, and is not easy to fall off, nor will it affect the movement of the wheel itself. The electronic tag is covered by the adhesive 30 and is not easily contaminated by the external environment such as wind, frost, rain, snow, dust and garbage.

[0063] In the above-mentioned electronic tag system, the antenna 20 of the electronic tag is attached to the side of the electronic tag substrate, so that the side of the electronic tag substrate will also be covered with radio frequency signals. The antenna 20 is higher than the top surface of the bolt 10, so that the top surface of the electronic tag substrate is also covered with radio frequency signals. Then, the RFID reader can read the wheel information from all sides of the electronic tag substrate and the top surface of the electronic tag substrate through the antenna 20. The reading range is large and is not affected by the movement of the wheel. The antenna 20 and the electronic tag substrate are arranged in the groove 101 of the bolt 10 of the wheel, and will not affect the operation of the wheel itself, ensuring the safe operation of the wheel.

[0064] For train wheels, the electronic tag is generally installed in the groove 101 on the top surface of the oil filling hole bolt 10. Because of the mechanical characteristics of the train itself, there are many metal shieldings around the train wheels. And for electric-driven trains, the harmonics generated between the driver and the motor will be introduced into the rails through the wheels for release. In order to achieve a better reading effect and meet the safety regulations on the railway, the antenna 20 of the RFID reader is usually installed between the sleepers under the train wheels. The top surface of the oil filling hole bolt 10 installed with the electronic tag is parallel to the wheel surface of the train wheel. The angle of the radio frequency signal emitted by the antenna 20 of the electronic tag is small. As the train wheel moves, the direction of the antenna 20 of the electronic tag changes in real time, and the influence of harmonic interference makes it more difficult for the RFID reader to read the wheel information in the electronic tag, so it is difficult to read the information in the electronic tag of the oil filling hole bolt 10 on the train wheel. In the electronic tag system of the present application, the RFID reader can read the train wheel information in the electronic tag from the top side of the bolt 10, and the signal reading range is large. Applying the electronic tag system of the present application to the train wheel can reduce the difficulty of reading the wheel information in the electronic tag on the train wheel.

[0065] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0066] The above-mentioned embodiments only express several implementation methods of the present invention, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the invention patent. It should be pointed out that, for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be subject to the attached claims.

Claims

1. An electronic label system, characterized in that: The electronic label system comprises: A bolt, wherein a groove is formed on the top of the bolt; An electronic tag substrate is disposed in the groove; An electronic tag chip, arranged on the top surface of the electronic tag substrate, for recording wheel information; The antenna is attached to the top surface, side surface and bottom surface of the electronic tag substrate. The top of the antenna is higher than the top surface of the bolt. The antenna is divided into four parts. The diagonals of the upper and lower surfaces of the electronic tag substrate and the four sides enclose the entire surface of the electronic tag substrate into four closed areas. Each closed area is provided with a partial antenna. The antennas in adjacent closed areas are spaced by a preset distance. The antennas attached to the relative closed areas are also symmetrically arranged. The antenna is used to transmit the wheel information as a radio frequency signal between the electronic tag chip and the external RFID reader.

2. The electronic label system according to claim 1, characterized in that: The electronic tag system further includes: adhesive filled in the groove and used for fixing the antenna and the electronic tag substrate on the bolt.

3. The electronic label system according to claim 1, characterized in that: The electronic tag substrate is a rectangular parallelepiped, the top surface and the bottom surface of the electronic tag substrate are both square, and the antenna is attached to the top surface, the bottom surface and the four side surfaces of the electronic tag substrate.

4. The electronic label system according to claim 1, characterized in that: The electronic tag chip is arranged on the top surface of the electronic tag substrate; The electronic tag system further comprises a cover body, wherein a first groove is formed at the bottom of the cover body for filling the electronic tag substrate with the antenna attached thereto; A second groove is formed at the bottom of the first groove, and the second groove is used to fill the electronic tag chip; The cover body filled with the electronic tag substrate and the electronic tag chip is arranged in the groove of the bolt; wherein the diameter of the bottom of the cover body is smaller than the diameter of the groove.

5. The electronic label system according to claim 2, characterized in that: A groove is provided on the side wall at the bottom of the groove, and the groove is used for clamping with the cured adhesive.

6. The electronic label system according to claim 2, characterized in that: The side wall of the groove is provided with threads.

7. The electronic label system according to claim 2, 5 or 6, characterized in that: A threaded hole is provided at the bottom of the groove, and the threaded hole is used to fill adhesive.

8. The electronic label system according to claim 2, 4 or 5, characterized in that: The cured adhesive covers the electronic tag substrate and the antenna, and covers at least a portion of the top surface of the bolt, and the edge of the adhesive on the top surface of the bolt does not exceed the edge of the top surface of the bolt.

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