Transmitting and receiving device for identifying RFID (Radio Frequency Identification Device) tag

Abstract

The invention discloses a transceiving device for identifying an RFID (Radio Frequency Identification Device) tag, which relates to the technical field of RFID reader-writers, and is technically characterized by comprising a base and a shell fixedly mounted at the top of the base, a shell cover matched with the shell is arranged at the top of the shell, a plurality of heat dissipation holes are formed in the shell, an RFID tag identification mechanism is arranged in the shell, and the RFID tag identification mechanism is arranged in the shell. The RFID tag identification mechanism comprises a gear disc fixedly installed at the bottom of an inner cavity of the shell, a position adjusting motor is fixedly installed at the center of the bottom of the gear disc, and the output end of the position adjusting motor penetrates through the gear disc and is fixedly provided with a sun gear. A plurality of RFID identification modules dynamically move in a three-dimensional space to form a scanning track, the limitation of fixed area identification of a traditional reader-writer is broken through, the label position sensitivity is reduced, the directional opening design of the metal shielding sleeve is combined, external interference is shielded, the signal strength is enhanced, the problems of misreading and misreading caused by environmental interference are solved, and the identification precision is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of RFID readers and writers, and in particular to a transceiver for identifying RFID tags. Background Art

[0002] The transceiver of an RFID tag, or RFID reader / writer, utilizes radio frequency signals to achieve contactless communication with the tag. It primarily consists of an antenna, a radio frequency module, and a controller. By transmitting radio frequency signals to activate the tag and receiving information back from the tag, the reader / writer efficiently reads, writes, and identifies data. With advantages such as fast recognition speed, high accuracy, and convenient operation, it is widely used in various fields such as logistics, retail, and manufacturing, significantly improving the efficiency and accuracy of data management.

[0003] However, most current RFID readers have limitations during use. Users must hold the tag close to the designated area of ​​the reader to complete the card reading. Once the tag deviates from this area, the card reading will fail. This strict requirement on the tag position limits the flexibility and convenience of the device. Therefore, we propose a new transceiver device for identifying RFID tags. Summary of the Invention

[0004] In view of the shortcomings of the prior art, the present invention provides a transceiver for identifying RFID tags, which solves the problem that traditional RFID readers are sensitive to tag positions.

[0005] To achieve the above-mentioned objectives, the present invention provides the following technical solution: a transceiver for identifying RFID tags, comprising a base and a shell fixedly mounted on the top of the base, a shell cover that fits with the shell being provided on the top of the shell, a plurality of heat dissipation holes being provided on the shell, and an RFID tag identification mechanism being provided inside the shell.

[0006] The RFID tag identification mechanism includes a gear plate fixedly mounted on the bottom of the inner cavity of the shell, a positioning motor fixedly mounted at the center of the bottom of the gear plate, the output end of the positioning motor passes through the gear plate and is fixedly mounted with a sun gear, the sun gear is located at the center of the inner cavity of the gear plate, a plurality of planetary gears are engaged with the outer side of the sun gear, a plurality of the planetary gears are engaged with the gear plate, and an RFID tag identification component is provided on the planetary gear.

[0007] Preferably, the positioning motor is fixedly installed between the housing and the gear plate, wherein the bottom of the positioning motor is fixedly connected to the bottom of the inner cavity of the housing.

[0008] Preferably, the inner cavity bottom of the gear plate is smooth, and the plurality of planetary gears are located between the sun gear and the gear plate.

[0009] Preferably, the RFID tag identification component is fixedly mounted on a connecting rod at the top of the planetary gear, a pressure bearing is fixedly mounted on the top of the connecting rod, a support rod is fixedly mounted on the top of the pressure bearing, an anti-rotation ring adapted to the support rod is fixedly mounted on the support rod, a metal shielding sleeve is fixedly mounted on the top of the support rod, and an RFID identification module is fixedly mounted inside the metal shielding sleeve.

[0010] Preferably, the pressure bearing is located between the connecting rod and the support rod.

[0011] Preferably, the anti-rotation ring is composed of a plurality of arc-shaped strips and a plurality of collars, wherein the arc-shaped strips and collars are interlaced and fixedly connected; the metal shielding sleeve is composed of an upper plate, a lower plate and an arc-shaped metal plate, wherein the arc-shaped metal plate is fixedly installed between the upper plate and the lower plate.

[0012] Preferably, the opening of the metal shielding sleeve faces the housing, and the identification end of the RFID identification module is in the same direction as the opening of the metal shielding sleeve.

[0013] Preferably, a heat sink is provided at the center of the top of the sun gear, and the heat sink includes a shaft fixedly installed at the center of the top of the sun gear, and a plurality of heat sinks are fixedly installed on the outer cylindrical surface of the shaft, and the heat sinks are located on the inner side of the plurality of RFID identification modules.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] 1. This invention utilizes a sun gear and planetary gear transmission system driven by a positioning motor to enable multiple RFID identification modules to form dynamic scanning trajectories within three-dimensional space, significantly expanding signal coverage. While traditional readers rely on fixed-area recognition, this device uses the revolution and rotation of the planetary gears to drive the identification modules for continuous movement. This allows tags to be captured dynamically even when they deviate from their normal position, significantly reducing sensitivity to tag position and addressing the lack of flexibility inherent in traditional devices.

[0016] 2. This invention utilizes a metal shield and directional opening design to expand signal range while optimizing recognition quality. The opening of the metal shield aligns with the radiation direction of the recognition module, shielding against external electromagnetic interference while enhancing signal strength. This solves the problem of misreading or missing data caused by environmental interference in traditional readers and improves recognition accuracy and stability.

[0017] 3. This invention ensures long-term reliable operation of the device by providing a heat sink. The heat dissipation blades rotate with the gears to create airflow, which cooperates with the heat dissipation holes in the housing to quickly dissipate heat, preventing high temperatures from affecting the performance of electronic components. This solves the problem of shortened lifespan of traditional readers caused by overheating and provides a key guarantee for efficient heat dissipation. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a complete structural diagram of the present invention;

[0019] Figure 2 This is a schematic structural diagram of the RFID tag identification component and the heat dissipation component of the present invention;

[0020] Figure 3 For the present invention Figure 2 Schematic diagram of the cross-section structure;

[0021] Figure 4 This is a schematic structural diagram of the metal shielding sleeve and RFID identification module of the present invention;

[0022] Figure 5 This is a schematic structural diagram of the anti-rotation ring, sun gear and planetary gears of the present invention;

[0023] Figure 6 For the present invention Figure 5 Schematic diagram of the enlarged structure at point A above.

[0024] In the figure: 1. Base; 2. Housing; 3. Heat dissipation hole; 4. RFID tag identification mechanism; 401. Gear plate; 402. Positioning motor; 403. Sun gear; 404. Planetary gear; 405. RFID tag identification component; 4051. Connecting rod; 4052. Pressure bearing; 4053. Support rod; 4054. Anti-rotation ring; 4055. Metal shielding sleeve; 4056. RFID identification module; 406. Heat dissipation component; 4061. Shaft; 4062. Heat dissipation blade. DETAILED DESCRIPTION

[0025] In the present invention, unless otherwise specified, directions such as "up" and "down" are generally used with respect to the directions shown in the drawings, or with respect to the vertical, perpendicular or gravity directions; similarly, for ease of understanding and description, "left" and "right" are generally used with respect to the left and right shown in the drawings; "inside" and "outside" refer to the inside and outside relative to the outline of each component itself, but the above-mentioned directions are not used to limit the present invention.

[0026] The present invention provides a technical solution:

[0027] See also Figures 1 to 6 A transceiver for identifying RFID tags includes a base 1 and a shell 2 fixedly mounted on the top of the base 1, a shell cover that fits with the shell 2 is provided on the top of the shell 2, a plurality of heat dissipation holes 3 are provided on the shell 2, and an RFID tag identification mechanism 4 is provided inside the shell 2.

[0028] The RFID tag identification mechanism 4 includes a gear plate 401 fixedly mounted on the bottom of the inner cavity of the shell 2, and a positioning motor 402 is fixedly mounted at the center of the bottom of the gear plate 401. The output end of the positioning motor 402 passes through the gear plate 401 and is fixedly mounted with a sun gear 403. The sun gear 403 is located at the center of the inner cavity of the gear plate 401. Several planetary gears 404 are engaged with the outer side of the sun gear 403. Several planetary gears 404 are engaged with the gear plate 401, and an RFID tag identification component 405 is provided on the planetary gear 404.

[0029] After the positioning motor 402 is activated, it drives the sun gear 403 to rotate. This interacts with the meshing planetary gears 404, causing them to simultaneously orbit and rotate within the gear plate 401. This in turn drives the RFID tag identifier 405 to dynamically move in three dimensions, forming a continuous scanning trajectory. This motion mechanism significantly expands the signal coverage range, enabling the device to capture tag signals from various locations. This overcomes the limitations of traditional fixed-area recognition and addresses the positional dependency of traditional readers.

[0030] In some embodiments, the positioning motor 402 is fixedly installed between the housing 2 and the gear plate 401 , wherein the bottom of the positioning motor 402 is fixedly connected to the bottom of the inner cavity of the housing 2 .

[0031] In this embodiment, the positioning motor 402 is fixedly installed between the housing 2 and the gear plate 401, so that the positioning motor 402 can be located at a specified position and perform a stable positioning operation.

[0032] In some embodiments, the inner bottom of the gear plate 401 is smooth, and a plurality of planetary gears 404 are located between the sun gear 403 and the gear plate 401 .

[0033] In this embodiment, the inner bottom of the gear plate 401 is smooth, which reduces the friction between the planetary gears 404, the sun gear 403 and the gear plate 401, so that the planetary gears 404 and the sun gear 403 rotate more smoothly.

[0034] See also Figures 2 to 6 The RFID tag identification component 405 includes a connecting rod 4051 fixedly installed on the top of the planetary gear 404, a pressure bearing 4052 fixedly installed on the top of the connecting rod 4051, a support rod 4053 fixedly installed on the top of the pressure bearing 4052, an anti-rotation ring 4054 adapted to the support rod 4053 fixedly installed on the support rod 4053, a metal shielding sleeve 4055 fixedly installed on the top of the support rod 4053, and an RFID identification module 4056 fixedly installed inside the metal shielding sleeve 4055.

[0035] The metal shielding sleeve 4055 encloses the RFID identification module 4056, enhancing signal strength and shielding against external interference. During operation, the positioning motor drives the sun gear to rotate, which in turn drives the planetary gears 404 to move, allowing the RFID identification module 4056 to dynamically scan in three-dimensional space, significantly expanding the signal coverage range and reducing sensitivity to tag position, thereby achieving efficient and accurate RFID tag recognition.

[0036] In some embodiments, the pressure bearing 4052 is located between the connecting rod 4051 and the support rod 4053.

[0037] In this embodiment, during the operation of the transceiver device for identifying RFID tags, pressure bearing 4052 is located between connecting rod 4051 and support rod 4053, playing a key role in supporting and reducing friction. When the positioning motor 402 drives the sun gear 403 to rotate and drives the planetary gears 404 to orbit and rotate, pressure bearing 4052 ensures that support rod 4053, its top metal shield 4055, and RFID identification module 4056 can move smoothly and efficiently with the planetary gears 404, forming a dynamic scanning trajectory. At the same time, pressure bearing 4052 effectively suppresses the tendency of support rod 4053 to rotate, maintaining a stable orientation of the identification end of RFID identification module 4056, thereby achieving efficient and accurate identification of RFID tags.

[0038] In some embodiments, the anti-rotation ring 4054 is composed of a plurality of arc-shaped bars and a plurality of rings, wherein the arc-shaped bars and the rings are interlaced and fixedly connected with each other; the metal shielding sleeve 4055 is composed of an upper plate, a lower plate and an arc-shaped metal plate, wherein the arc-shaped metal plate is fixedly installed between the upper plate and the lower plate.

[0039] In this embodiment, the anti-rotation ring 4054 on the support rod 4053 inhibits the rotation of the support rod through the interlocking structure of the arc strip and the ring, so that the opening direction of the top metal shielding sleeve 4055 is always toward the shell 2; the metal shielding sleeve 4055 is composed of an arc-shaped metal plate, an upper plate and a lower plate. Its directional opening design focuses signal strength while shielding external electromagnetic interference, thereby optimizing recognition efficiency.

[0040] In some embodiments, the opening of the metal shielding sleeve 4055 faces the housing 2 , and the identification end of the RFID identification module 4056 faces the same direction as the opening of the metal shielding sleeve 4055 .

[0041] In this embodiment, setting the identification end of the RFID identification module 4056 to be aligned with the opening of the metal shielding sleeve 4055 can improve the anti-interference performance of the RFID identification module 4056 and also enhance the scanning capability of the RFID identification module 4056 at the opening of the metal shielding sleeve 4055.

[0042] Please refer to 2. Figure 3 and Figure 4 A heat sink 406 is provided at the center of the top of the sun gear 403. The heat sink 406 includes a shaft 4061 fixedly installed at the center of the top of the sun gear 403. A plurality of heat sink blades 4062 are fixedly installed on the outer circular surface of the shaft 4061. The heat sink blades 4062 are located on the inner side of the plurality of RFID identification modules 4056.

[0043] When the positioning motor drives the sun gear 403 to rotate, the shaft 4061 on its top rotates synchronously, driving the heat dissipation blades 4062 on the outer surface to rotate at high speed, forming a forced airflow; this airflow diffuses outward from the inside of the RFID identification module 4056, accelerating the discharge of heat through the heat dissipation holes 3 of the outer shell 2, effectively reducing the internal temperature of the device.

[0044] When used specifically, the working principle of the present invention is as follows:

[0045] When the device is started, the positioning motor 402 drives the sun gear 403 to rotate, and the sun gear 403 engages with the surrounding planetary gears 404, driving the planetary gears 404 to both revolve and rotate within the gear plate 401. The RFID identification module 4056 on top of each planetary gear 404 changes its spatial position as the planetary gear 404 moves through a linkage structure composed of a connecting rod 4051, a pressure bearing 4052, and a support rod 4053. This movement enables multiple identification modules to form a dynamic scanning trajectory in three-dimensional space, greatly expanding the signal radiation area. Even if the tag is not aligned with a fixed position, the signal can be captured by the moving identification module, significantly reducing the dependence on the tag position.

[0046] The design of the metal shielding sleeve 4055 further optimizes signal quality. The direction of its opening is consistent with the radiation direction of the RFID identification module 4056, which can not only shield external interference but also directionally enhance signal strength. At the same time, the heat dissipation blades 4062 on the top of the sun gear 403 rotate with the sun gear 403 to form an airflow, accelerating the discharge of internal heat from the heat dissipation holes 3 of the outer shell 2, ensuring that the RFID identification module 4056 maintains a normal temperature and operates stably for a long time. The anti-rotation ring 4054 uses an arc-shaped strip and a collar in conjunction with the pressure bearing 4052 to suppress the tendency of the support rod 4053 to rotate during movement, keeping the identification end of the RFID identification module 4056 always stably facing the outer shell 2. Through the above-mentioned synergistic effect, the device achieves high tolerance for tag position, rapid identification, and continuous and stable operation, breaking through the limitations of traditional readers and writers.

[0047] The above are only specific embodiments of the present invention, but the technical features of the present invention are not limited thereto. Any simple changes, equivalent substitutions, or modifications based on the present invention to solve substantially the same technical problems and achieve substantially the same technical effects are all included in the scope of protection of the present invention.

Claims

1. A transceiver for identifying an RFID tag, characterized in that: The invention comprises a base (1) and a shell (2) fixedly mounted on the top of the base (1); a shell cover is provided on the top of the shell (2) and is fitted with the shell (2); a plurality of heat dissipation holes (3) are provided on the shell (2); and an RFID tag identification mechanism (4) is provided inside the shell (2); The RFID tag identification mechanism (4) comprises a gear plate (401) fixedly mounted on the bottom of the inner cavity of the housing (2); a positioning motor (402) is fixedly mounted at the center of the bottom of the gear plate (401); an output end of the positioning motor (402) passes through the gear plate (401) and is fixedly mounted with a sun gear (403); the sun gear (403) is located at the center of the inner cavity of the gear plate (401); a plurality of planetary gears (404) are meshed on the outer side of the sun gear (403); the plurality of planetary gears (404) are meshed with the gear plate (401); and an RFID tag identification component (405) is provided on the planetary gear (404).

2. The transceiver for identifying an RFID tag according to claim 1, characterized in that: The positioning motor (402) is fixedly mounted between the housing (2) and the gear plate (401), wherein the bottom of the positioning motor (402) is fixedly connected to the bottom of the inner cavity of the housing (2).

3. The transceiver for identifying an RFID tag according to claim 1, wherein: The inner cavity bottom of the gear plate (401) is smooth, and the plurality of planetary gears (404) are located between the sun gear (403) and the gear plate (401).

4. The transceiver for identifying an RFID tag according to claim 1, wherein: The RFID tag identification component (405) includes a connecting rod (4051) fixedly mounted on the top of the planetary gear (404); a pressure bearing (4052) is fixedly mounted on the top of the connecting rod (4051); a support rod (4053) is fixedly mounted on the top of the pressure bearing (4052); an anti-rotation ring (4054) adapted to the support rod (4053) is fixedly mounted on the support rod (4053); a metal shielding sleeve (4055) is fixedly mounted on the top of the support rod (4053); and an RFID identification module (4056) is fixedly mounted inside the metal shielding sleeve (4055).

5. The transceiver for identifying an RFID tag according to claim 4, characterized in that: The pressure bearing (4052) is located between the connecting rod (4051) and the supporting rod (4053).

6. The transceiver for identifying an RFID tag according to claim 4, characterized in that: The anti-rotation ring (4054) is composed of a plurality of arcuate bars and a plurality of collars, wherein the arcuate bars and collars are interlaced and fixedly connected; The metal shielding sleeve (4055) is composed of an upper plate, a lower plate and an arc-shaped metal plate, wherein the arc-shaped metal plate is fixedly installed between the upper plate and the lower plate.

7. The transceiver for identifying an RFID tag according to claim 4, characterized in that: The opening of the metal shielding sleeve (4055) faces the housing (2), and the identification end of the RFID identification module (4056) faces the same direction as the opening of the metal shielding sleeve (4055).

8. The transceiver for identifying an RFID tag according to claim 4, characterized in that: A heat sink (406) is provided at the center of the top of the sun gear (403), and the heat sink (406) includes a shaft (4061) fixedly mounted at the center of the top of the sun gear (403), and a plurality of heat sink blades (4062) are fixedly mounted on the outer circumferential surface of the shaft (4061), and the heat sink blades (4062) are located on the inner sides of the plurality of RFID identification modules (4056).

Images