RFID reader / writer and RFID tag system

Abstract

The present invention provides an RFID reader and RFID tag system, including a limit assembly, wherein the limit assembly includes a base, two limit slots, a pull rod, a slide, a lifting plate, four fixed tubes, a suction cup, a slider, a sliding seat, a first spring, a guide rod, four connecting rods and a piston; the two limit slots are symmetrically arranged on the upper surface of the base. The present invention places the base on a desktop, presses to discharge the air in the suction cup, and then drives the sliding seat through the pull rod, and the sliding seat moves along the guide rod. At the same time, the sliding seat pushes the lifting plate upward through the inclined surface, and the lifting plate drives the connecting rod, and the connecting rod drives the piston to move upward, thereby forming a negative pressure in the suction cup to fix the RFID reader. In this process, the pull rod only needs to slide along the base to realize the adsorption and fixing action, which reduces the space required for operation and does not have the situation of operation restriction.

Description

Technical Field

[0001] The present invention relates to a reader / writer and a system, in particular to an RFID reader / writer and an RFID tag system, belonging to the technical field of RFID. Background Art

[0002] RFID technology, or radio frequency identification technology, is an automatic identification technology that stores data in tags or chips and transmits them through radio waves for identification and query. It eliminates the need for physical contact between tags and readers, thus achieving an automated and intelligent way of data collection. RFID readers, also known as RFID readers, are mainly responsible for bidirectional communication with electronic tags and receiving control instructions from the host system. RFID readers communicate wirelessly with RFID electronic tags through antennas to read or write tag identification codes and memory data.

[0003] There are many types of RFID readers, including handheld, desktop and fixed. Each of these different types of readers has its own characteristics and application scenarios. Desktop RFID readers are usually placed on a desktop, such as an office desktop or cash register. They have a compact design and take up little space.

[0004] When using a desktop RFID reader, it is usually placed directly on the desktop. In order to prevent it from shaking and affecting the use effect, in the prior art, a structure such as an anti-slip pad or a suction cup is often used to limit its position, for example:

[0005] The technology disclosed in CN202120799667.8 "A UHF RFID reader with stable connection" fixes the position of the RFID reader through the cooperation of a movable plate, a piston, a suction cup and other mechanisms. However, the following technical problems still exist during use:

[0006] (1) Operation is easily restricted: The suction cup is tightly attached to the desktop through the linkage between the movable plate and the piston. During operation, the movable plate needs to rotate around the axis. Therefore, a large enough space is required to rotate the movable plate. The operation process is easily limited by the desktop space.

[0007] (2) Inconvenient to use: When fixing the RFID reader or moving the RFID reader, it is necessary to rotate the movable plate, which cannot be operated with one hand. As a result, the operation is cumbersome and inconvenient to use.

[0008] To this end, an RFID reader / writer and an RFID tag system are proposed. Summary of the invention

[0009] In view of this, the present invention provides an RFID reader and an RFID tag system to solve or alleviate the technical problems existing in the prior art and at least provide a beneficial option.

[0010] The technical solution of the embodiment of the present invention is implemented as follows: the RFID reader includes a limit assembly, the limit assembly includes a base, two limit slots, a pull rod, a slide slot, a lifting plate, four fixed tubes, a suction cup, a slider, a sliding seat, a first spring, a guide rod, four connecting rods and a piston;

[0011] The two limiting grooves are symmetrically opened on the upper surface of the base, the four fixing tubes are symmetrically fixedly connected to the inner side walls of the limiting grooves, the suction cup is fixedly connected to the bottom end of the fixing tube and communicates with the fixing tube, the bottom end of the connecting rod is fixedly connected to the upper surface of the piston, the corresponding two connecting rods are symmetrically fixedly connected to the two ends of the lifting plate, the lower surface of the lifting plate is an inclined surface, the sliding groove is opened on the lower surface of the lifting plate, the sliding block is fixedly connected to the upper surface of the sliding seat, the pulling rod is fixedly connected to one side of the sliding seat, the first spring is sleeved on the outer side wall of the guide rod, the sliding seat is slidably connected to the outer side wall of the guide rod, and the outer side wall of the piston is slidably connected to the inner side wall of the fixed tube.

[0012] Further preferably, the upper surface of the sliding seat is an inclined surface, the upper surface of the sliding seat is slidably connected to the lower surface of the lifting plate, and the sliding block is slidably connected to the inner side wall of the sliding groove.

[0013] Further preferably, the outer side wall of the lifting plate is slidably connected to the inner side wall of the limiting groove, and the outer side wall of the sliding seat is slidably connected to the inner side wall of the limiting groove.

[0014] Further preferably, the two ends of the guide rod are symmetrically fixedly connected to the inner front wall and the inner rear wall of the limiting groove, one end of the first spring presses against the inner rear wall of the limiting groove, and the other end of the first spring presses against the rear surface of the sliding seat.

[0015] Further preferably, two avoidance grooves are symmetrically provided on both sides of the base, the avoidance grooves are communicated with the limiting grooves, and the pull rod is slidably connected to the inside of the avoidance grooves.

[0016] Further preferably, a finger pressure seat is fixedly connected to the rear surface of the base, a limiting hole is provided on the upper surface of the pull rod, a second spring and an insertion rod are installed inside the limiting hole, the insertion rod is slidably connected to the inner side wall of the limiting hole, one end of the second spring is fixedly connected to the bottom end of the insertion rod, the other end of the second spring is fixedly connected to the inner bottom wall of the limiting hole, and the top end of the insertion rod is arc-shaped.

[0017] Further preferably, two limit seats are symmetrically fixedly connected to both sides of the base, and insertion holes are provided on the upper surfaces of the limit seats, and the positions of the limit seats correspond to the positions of the pull rods.

[0018] Further preferably, a main body component is installed on the upper surface of the base, and the main body component includes a panel, an antenna and a control circuit board;

[0019] The panel is mounted on the upper surface of the base, the control circuit board is mounted on the inner bottom wall of the base, and the antenna is mounted on the lower surface of the panel.

[0020] Further preferably, a data connector and a network cable interface are installed on the front surface of the base.

[0021] An RFID tag system includes an RFID reader / writer, an RFID tag and a server, wherein the RFID reader / writer includes a control module, a radio frequency module, a reader / writer antenna and an interface, and the RFID tag includes a chip and a tag built-in antenna;

[0022] The signal transmitting end of the control module is connected to the signal receiving end of the radio frequency module, the signal transmitting end of the radio frequency module is connected to the signal receiving end of the reader / writer antenna, the signal transmitting end of the reader / writer antenna is connected to the signal receiving end of the interface, and the signal transmitting end of the interface is connected to the signal receiving end of the server through a data line;

[0023] The signal transmitting end and the signal receiving end of the reader / writer antenna are connected to the signal receiving end and the signal transmitting end of the tag built-in antenna, and the signal transmitting end and the signal receiving end of the chip are connected to the signal receiving end and the signal transmitting end of the tag built-in antenna;

[0024] The radio frequency module is used to send radio frequency signals through the reader antenna and form a read-write area;

[0025] The built-in antenna of the tag is used to receive the radio frequency signal sent by the reader antenna and generate an induced current, which activates the chip, and the RFID tag completes the communication with the RFID reader;

[0026] The tag built-in antenna is also used to send data information stored in the chip to the reader antenna. The reader antenna sends the data information to the server through the interface, and the server terminal reads the data information of the RFID tag.

[0027] The embodiment of the present invention has the following advantages due to the adoption of the above technical solution:

[0028] 1. The present invention places the base on the desktop, presses to expel the air in the suction cup, and then drives the sliding seat through the pull rod. The sliding seat moves along the guide rod. At the same time, the sliding seat pushes the lifting plate upward through the inclined surface. The lifting plate drives the connecting rod, and the connecting rod drives the piston to move upward, thereby forming a negative pressure in the suction cup to fix the RFID reader. In this process, the pull rod only needs to slide along the side of the base to achieve the adsorption and fixing action, thereby reducing the operating space and avoiding the problem of limited operation.

[0029] 2. The present invention places the thumb on the acupressure seat, and then uses the index finger and the middle finger to pull the pull rods on both sides of the base respectively, and the pull rods move toward the direction close to the limit seat. During the pulling process, the RFID reader is fixed on the desktop, and when the insertion rod contacts the limit seat, the insertion rod moves to the inside of the limit hole. When the insertion rod moves to a position corresponding to the socket, the insertion rod is inserted into the socket under the push of the second spring, and then the position of the pull rod is fixed at this time, completing the fixation of the RFID reader. The entire process can be achieved with one hand, which is convenient for use.

[0030] The above summary is for illustrative purposes only and is not intended to be limiting in any way. In addition to the illustrative aspects, embodiments and features described above, further aspects, embodiments and features of the present invention will be readily apparent by reference to the accompanying drawings and the following detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0032] Figure 1 It is a structural diagram of the RFID reader of the present invention;

[0033] Figure 2 It is an exploded view of the main assembly of the present invention;

[0034] Figure 3 It is a structural diagram of the limiting component of the present invention;

[0035] Figure 4 It is a structural diagram of the lifting plate of the present invention;

[0036] Figure 5 It is a structural diagram of the sliding seat of the present invention;

[0037] Figure 6 It is a schematic diagram of the connection between the lifting plate and the connecting rod of the present invention;

[0038] Figure 7 It is a structural diagram of the pull rod of the present invention;

[0039] Figure 8 It is a structural diagram of the limit seat of the present invention;

[0040] Fig. 9 It is a structural diagram of the RFID tag system of the present invention.

[0041] 1. The support assembly includes the following components: 101. a stopper assembly; 11. a base; 12. a stopper groove; 13. a pull rod; 14. a slide groove; 15. a lifting plate; 16. a fixing tube; 17. a suction cup; 18. a slider; 19. a sliding seat; 20. a first spring; 21. a guide rod; 22. a connecting rod; 23. a piston; 24. a plug rod; 25. a second spring; 26. a stopper hole; 27. a stopper seat; 28. a plug socket; 29. ​​a finger pressure seat; 30. a avoidance groove; 301. a main assembly; 31. a panel; 32. a network cable interface; 33. a data connector; 34. an antenna; 35. a control circuit board. DETAILED DESCRIPTION

[0042] In the following, only some exemplary embodiments are briefly described. As those skilled in the art will appreciate, the described embodiments may be modified in various ways without departing from the spirit or scope of the present invention. Therefore, the drawings and descriptions are considered to be exemplary and non-restrictive in nature.

[0043] The embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0044] Example 1

[0045] In the prior art, when the RFID reader is fixed on the desktop using a suction cup, the rod body is swung to drive the piston to achieve the adsorption action. This operation requires a sufficiently large space to be achieved and is easily limited by the desktop space.

[0046] For this see Figure 1-8 , an embodiment of the present invention provides an RFID reader, including a limit assembly 101, the limit assembly 101 includes a base 11, two limit grooves 12, a pull rod 13, a slide groove 14, a lifting plate 15, four fixed tubes 16, a suction cup 17, a slider 18, a sliding seat 19, a first spring 20, a guide rod 21, four connecting rods 22 and a piston 23;

[0047] Two limit grooves 12 are symmetrically opened on the upper surface of the base 11, four fixed tubes 16 are symmetrically fixedly connected to the inner wall of the limit groove 12, the suction cup 17 is fixedly connected to the bottom end of the fixed tube 16 and communicated with the fixed tube 16, the bottom end of the connecting rod 22 is fixedly connected to the upper surface of the piston 23, and the corresponding two connecting rods 22 are symmetrically fixedly connected to the two ends of the lifting plate 15, the lower surface of the lifting plate 15 is an inclined surface, the sliding groove 14 is opened on the lower surface of the lifting plate 15, the slider 18 is fixedly connected to the upper surface of the sliding seat 19, the pull rod 13 is fixedly connected to one side of the sliding seat 19, the first spring 20 is sleeved on the outer wall of the guide rod 21, the sliding seat 19 is slidably connected to the outer wall of the guide rod 21, and the outer wall of the piston 23 is slidably connected to the inner wall of the fixed tube 16.

[0048] In Example 1, the upper surface of the sliding seat 19 is an inclined surface, and the upper surface of the sliding seat 19 is slidably connected to the lower surface of the lifting plate 15, the slider 18 is slidably connected to the inner wall of the slide groove 14, the outer wall of the lifting plate 15 is slidably connected to the inner wall of the limiting groove 12, and the outer wall of the sliding seat 19 is slidably connected to the inner wall of the limiting groove 12. When the sliding seat 19 moves, the sliding seat 19 pushes the lifting plate 15 upward through the inclined surface, the lifting plate 15 drives the connecting rod 22, and the connecting rod 22 drives the piston 23 to move upward, thereby forming a negative pressure in the suction cup 17 to fix the RFID reader.

[0049] In Example 1, the two ends of the guide rod 21 are symmetrically fixedly connected to the inner front wall and the inner rear wall of the limiting groove 12, one end of the first spring 20 presses against the inner rear wall of the limiting groove 12, and the other end of the first spring 20 presses against the rear surface of the sliding seat 19. The position of the sliding seat 19 can be limited by the guide rod 21. When the sliding seat 19 pushes the lifting plate 15 to move upward, the first spring 20 is compressed by force.

[0050] In order to solve the above technical problems, the embodiment of the present invention provides an RFID reader and writer and solves the problems through the following technical solutions:

[0051] Place the base 11 on the desktop, press the base 11 to exhaust the air in the suction cup 17, and then drive the sliding seat 19 through the pull rod 13. The sliding seat 19 moves along the guide rod 21. At the same time, the sliding seat 19 pushes the lifting plate 15 upward through the inclined surface. The lifting plate 15 drives the connecting rod 22, and the connecting rod 22 drives the piston 23 to move upward, thereby forming a negative pressure in the suction cup 17 to fix the RFID reader. In this process, the pull rod 13 only needs to slide along the base 11 to achieve the adsorption and fixing action, which reduces the space required during the operation and does not limit the operation.

[0052] Example 2

[0053] In the prior art, when the RFID reader is fixed or moved, it is impossible to achieve single-handed operation, and the operation is relatively cumbersome and inconvenient to use.

[0054] To do this, see Figure 2-8 The embodiment of the present invention provides an RFID reader, wherein two avoidance grooves 30 are symmetrically provided on both sides of the base 11 , the avoidance grooves 30 are connected to the limit grooves 12 , and the pull rod 13 is slidably connected to the inside of the avoidance grooves 30 .

[0055] In Example 2, a finger pressure seat 29 is fixedly connected to the rear surface of the base 11, and a limiting hole 26 is opened on the upper surface of the pull rod 13. A second spring 25 and an insertion rod 24 are installed inside the limiting hole 26. The insertion rod 24 is slidably connected to the inner side wall of the limiting hole 26. One end of the second spring 25 is fixedly connected to the bottom end of the insertion rod 24, and the other end of the second spring 25 is fixedly connected to the inner bottom wall of the limiting hole 26. The top end of the insertion rod 24 is arc-shaped, and the front part of the lower surface of the limiting seat 27 is an inclined surface. Therefore, when the pull rod 13 moves, the top of the insertion rod 24 contacts with the inclined surface of the limiting seat 27, and the inclined surface can play a guiding role to avoid position conflicts.

[0056] In Embodiment 2, two limit seats 27 are symmetrically fixedly connected to both sides of the base 11 . An insertion hole 28 is formed on the upper surface of the limit seat 27 . The position of the limit seat 27 corresponds to the position of the pull rod 13 .

[0057] In order to solve the above technical problems, the embodiment of the present invention provides an RFID reader and writer and solves the problems through the following technical solutions:

[0058] When in use, place the thumb on the acupressure seat 29, and then use the index finger and middle finger to pull the pull rod 13 located on both sides of the base 11 respectively, and the pull rod 13 moves toward the direction close to the limit seat 27. During the pulling process, the RFID reader is fixed on the desktop. When the insertion rod 24 contacts the limit seat 27, the insertion rod 24 moves to the inside of the limit hole 26. When the insertion rod 24 moves to the position corresponding to the socket 28, under the push of the second spring 25, the insertion rod 24 is inserted into the socket 28. At this time, the position of the pull rod 13 is fixed, and the fixation of the RFID reader is completed. The whole process can be achieved with one hand, which is more convenient to use.

[0059] Example 3

[0060] See also Figure 1-2 , a main body component 301 is mounted on the upper surface of the base 11, and the main body component 301 includes a panel 31, an antenna 34 and a control circuit board 35;

[0061] The panel 31 is mounted on the upper surface of the base 11 , the control circuit board 35 is mounted on the inner bottom wall of the base 11 , the antenna 34 is mounted on the lower surface of the panel 31 , and the front surface of the base 11 is mounted with a data connector 33 and a network cable interface 32 .

[0062] Example 4

[0063] See also Fig. 9 , an embodiment of the present invention provides an RFID tag system, including an RFID reader / writer, an RFID tag and a server, the RFID reader / writer includes a control module, a radio frequency module, a reader / writer antenna and an interface, and the RFID tag includes a chip and a tag built-in antenna;

[0064] The signal sending end of the control module is connected to the signal receiving end of the radio frequency module, the signal sending end of the radio frequency module is connected to the signal receiving end of the reader antenna, the signal sending end of the reader antenna is connected to the signal receiving end of the interface, and the signal sending end of the interface is connected to the signal receiving end of the server through a data line;

[0065] The signal transmitting end and the signal receiving end of the reader / writer antenna are connected to the signal receiving end and the signal transmitting end of the tag built-in antenna, and the signal transmitting end and the signal receiving end of the chip are connected to the signal receiving end and the signal transmitting end of the tag built-in antenna;

[0066] The radio frequency module is used to send radio frequency signals through the reader antenna and form a read / write area;

[0067] The built-in antenna of the tag is used to receive the radio frequency signal sent by the reader antenna and generate an induced current. The induced current activates the chip, and the RFID tag completes the communication with the RFID reader.

[0068] The built-in antenna of the tag is also used to send the data information stored in the chip to the reader antenna. The reader antenna sends the data information to the server through the interface, and the server terminal reads the data information of the RFID tag.

[0069] When the RFID reader of the present invention is working: first place the base 11 on the desktop, press the panel 31 to discharge the air in the suction cup 17, then place the thumb on the finger pressure seat 29, and use the index finger and middle finger to pull the pull rods 13 on both sides of the base 11 respectively, and the pull rods 13 drive the sliding seat 19, and the sliding seat 19 moves along the guide rod 21. At the same time, the sliding seat 19 pushes the lifting plate 15 upward through the inclined surface, and the lifting plate 15 drives the connecting rod 22, and the connecting rod 22 drives the piston 23 to move upward, so that negative pressure can be formed in the suction cup 17. When the insertion rod 24 contacts the limiting seat 27, the insertion rod 24 moves downward to the inside of the limiting hole 26. When the insertion rod 24 moves to the position corresponding to the insertion hole 28, under the push of the second spring 25, the insertion rod 24 is inserted into the insertion hole 28, and then the position of the pull rod 13 is fixed at this time, completing the fixation of the RFID reader;

[0070] The RFID tag is placed close to the panel 31, the data information in the RFID tag is received by the antenna 34, and then sent to the external terminal, so that the RFID tag can be read.

[0071] The above is only a specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art can easily think of various changes or substitutions within the technical scope disclosed by the present invention, which should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

Claims

1. An RFID reader / writer, comprising a limiter assembly (101), characterized in that: The limiting assembly (101) comprises a base (11), two limiting grooves (12), two pull rods (13), two slide grooves (14), two lifting plates (15), four fixed tubes (16), four suction cups (17), two sliders (18), two sliding seats (19), two first springs (20), two guide rods (21), four connecting rods (22) and four pistons (23); The two limiting grooves (12) are symmetrically opened on the upper surface of the base (11); the four fixing tubes (16) are symmetrically fixedly connected to the inner side walls of the limiting grooves (12); the suction cup (17) is fixedly connected to the bottom end of the fixing tube (16) and communicates with the fixing tube (16); the bottom end of the connecting rod (22) is fixedly connected to the upper surface of the piston (23); the corresponding two connecting rods (22) are symmetrically fixedly connected to the two ends of the lifting plate (15); the lifting plate (15) The lower surface of the guide rod (21) is an inclined surface, the slide groove (14) is opened on the lower surface of the lifting plate (15), the slider (18) is fixedly connected to the upper surface of the sliding seat (19), the pull rod (13) is fixedly connected to one side of the sliding seat (19), the first spring (20) is sleeved on the outer wall of the guide rod (21), the sliding seat (19) is slidably connected to the outer wall of the guide rod (21), and the outer wall of the piston (23) is slidably connected to the inner wall of the fixed tube (16); The upper surface of the sliding seat (19) is an inclined surface, the upper surface of the sliding seat (19) is slidably connected to the lower surface of the lifting plate (15), and the sliding block (18) is slidably connected to the inner wall of the sliding groove (14).

2. The RFID reader / writer according to claim 1, characterized in that: The outer side wall of the lifting plate (15) is slidably connected to the inner side wall of the limiting groove (12), and the outer side wall of the sliding seat (19) is slidably connected to the inner side wall of the limiting groove (12).

3. The RFID reader / writer according to claim 2, characterized in that: The two ends of the guide rod (21) are symmetrically fixedly connected to the inner front wall and the inner rear wall of the limiting groove (12), one end of the first spring (20) presses against the inner rear wall of the limiting groove (12), and the other end of the first spring (20) presses against the rear surface of the sliding seat (19).

4. The RFID reader / writer according to claim 3, characterized in that: Two avoidance grooves (30) are symmetrically provided on both sides of the base (11); the avoidance grooves (30) are communicated with the limit grooves (12); and the pull rods (13) are slidably connected to the inside of the avoidance grooves (30).

5. The RFID reader / writer according to claim 4, characterized in that: The rear surface of the base (11) is fixedly connected to a finger pressure seat (29), the upper surface of the pull rod (13) is provided with a limiting hole (26), the interior of the limiting hole (26) is provided with a second spring (25) and an insertion rod (24), the insertion rod (24) is slidably connected to the inner side wall of the limiting hole (26), one end of the second spring (25) is fixedly connected to the bottom end of the insertion rod (24), the other end of the second spring (25) is fixedly connected to the inner bottom wall of the limiting hole (26), and the top end of the insertion rod (24) is arc-shaped.

6. The RFID reader / writer according to claim 5, characterized in that: Two limit seats (27) are symmetrically fixedly connected to the two sides of the base (11), and an insertion hole (28) is provided on the upper surface of the limit seat (27). The position of the limit seat (27) corresponds to the position of the pull rod (13).

7. The RFID reader / writer according to claim 6, characterized in that: A main body component (301) is mounted on the upper surface of the base (11), and the main body component (301) comprises a panel (31), an antenna (34) and a control circuit board (35); The panel (31) is mounted on the upper surface of the base (11), the control circuit board (35) is mounted on the inner bottom wall of the base (11), and the antenna (34) is mounted on the lower surface of the panel (31).

8. The RFID reader / writer according to claim 7, characterized in that: A data connector (33) and a network cable interface (32) are installed on the front surface of the base (11).

9. An RFID tag system, applied to the RFID reader / writer according to any one of claims 1 to 8, characterized in that: It includes an RFID reader / writer, an RFID tag and a server, wherein the RFID reader / writer includes a control module, a radio frequency module, a reader / writer antenna and an interface, and the RFID tag includes a chip and a tag built-in antenna; The signal transmitting end of the control module is connected to the signal receiving end of the radio frequency module, the signal transmitting end of the radio frequency module is connected to the signal receiving end of the reader / writer antenna, the signal transmitting end of the reader / writer antenna is connected to the signal receiving end of the interface, and the signal transmitting end of the interface is connected to the signal receiving end of the server through a data line; The signal transmitting end and the signal receiving end of the reader / writer antenna are connected to the signal receiving end and the signal transmitting end of the tag built-in antenna, and the signal transmitting end and the signal receiving end of the chip are connected to the signal receiving end and the signal transmitting end of the tag built-in antenna; The radio frequency module is used to send radio frequency signals through the reader antenna and form a read-write area; The built-in antenna of the tag is used to receive the radio frequency signal sent by the reader antenna and generate an induced current, which activates the chip, and the RFID tag completes the communication with the RFID reader; The tag built-in antenna is also used to send data information stored in the chip to the reader antenna. The reader antenna sends the data information to the server through the interface, and the server terminal reads the data information of the RFID tag.

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