RFID automatic coding device

Abstract

The utility model discloses an RFID automatic coding device, comprising a coding system terminal, a coding distribution module, an RFID reader-writer and a coding support, the coding system terminal is connected with the coding distribution module, the coding support is provided with a coding area, the RFID automatic coding device also comprises a transmission seat, the coding support is provided with at least two probes capable of extending into the coding area, and the transmission seat is provided with a plurality of probes capable of extending into the coding area. The probes are connected with the RFID reader-writer, signal transmission pipes capable of performing signal transmission with the probes in a one-to-one correspondence mode are arranged between the code writing distribution module and the RFID reader-writer, and wave-absorbing shielding layers capable of limiting signal interference between the different signal transmission pipes are arranged on the outer sides of the signal transmission pipes. By combining the electromagnetic wave absorption characteristic of the wave-absorbing shielding layer, the electromagnetic crosstalk between the signal transmission pipes during multi-channel parallel operation is effectively inhibited. The stability of multi-probe synchronous work is guaranteed, the problem of communication failure caused by signal superposition is avoided, and the code writing success rate and throughput are remarkably improved.

Description

Technical Field

[0001] This utility model relates to the field of RFID coding equipment technology, and in particular to an RFID automatic coding device. Background Technology

[0002] In recent years, with the rapid development of IoT technology, RFID technology has been widely used in logistics management, warehouse tracking, and smart manufacturing due to its high-efficiency identification capabilities. In the production process of RFID products, the coding process is a core step, requiring precise matching of chip information with system data to ensure data uniqueness and accuracy. However, existing RFID coding devices and methods still have significant technical bottlenecks, restricting their application efficiency in large-scale production scenarios.

[0003] Traditional RFID coding processes typically employ manual or semi-automatic operation, requiring each product to be coded to be closely aligned with the reader, and coding performed only after data comparison with the system. However, due to the physical characteristics of near-field communication, electromagnetic signals are highly susceptible to interference when multiple RFID chips are simultaneously within the reader's range, significantly increasing the coding failure rate. Furthermore, existing technologies often employ a single-channel sequential coding method to mitigate interference, which, while reducing interference risk, severely sacrifices production efficiency and fails to meet the high throughput requirements of industrial automation scenarios.

[0004] This utility model is based on the above-mentioned circumstances. Utility Model Content

[0005] This invention overcomes the shortcomings of the prior art and provides an RFID automatic coding device that can realize multi-channel synchronous coding while greatly reducing signal interference between adjacent channels, thereby improving the coding success rate.

[0006] This utility model is achieved through the following technical solution:

[0007] An automatic RFID coding device includes a coding system terminal, a coding distribution module, an RFID reader, and a coding support. The coding system terminal is connected to the coding distribution module. The coding support has a coding area. The automatic RFID coding device also includes a conveyor for transporting RFID products to the coding area. The coding support has at least two probes that can extend into the coding area to contact the chip contacts of the RFID products and thus exchange data. The probes are connected to the RFID reader. A signal transmission tube is provided between the coding distribution module and the RFID reader to transmit signals in a one-to-one correspondence with each probe. An absorbing shielding layer is provided on the outside of the signal transmission tube to limit signal interference between different signal transmission tubes.

[0008] As described above, an RFID automatic coding device has a coding bracket with a mounting base for mounting probes, and the coding bracket also has a first driving mechanism that can drive the mounting base to move up and down, thereby bringing the probe closer to or away from the RFID product chip contact.

[0009] As described above, in an RFID automatic coding device, the coding bracket is further provided with a first linear module that drives the mounting base to move to the upper part of the coding area, and the mounting base is connected to the slide of the first linear module.

[0010] As described above, in an RFID automatic coding device, the transmission base is equipped with a positioning mechanism for positioning RFID products.

[0011] As described above, in an RFID automatic coding device, the RFID product is provided with a positioning hole or positioning slot, and the positioning mechanism includes a positioning column disposed on a conveyor base and capable of being inserted into the positioning hole or positioning slot.

[0012] The RFID automatic coding device described above further includes a base, and the RFID reader, coding bracket, and transmission base are all connected to the base.

[0013] As described above, in an RFID automatic coding device, the transmission base includes a second linear module connected to the base, and the slide of the second linear module is provided with a placement plate for placing RFID products.

[0014] As described above, in an RFID automatic coding device, the conveyor seat is provided with a receiving groove, and the conveyor seat is provided with a second driving mechanism that can drive the positioning column to retract into the receiving groove.

[0015] In the RFID automatic coding device described above, the second driving mechanism includes a third linear module or a cylinder.

[0016] As described above, the RFID automatic coding device has a pulley system at the bottom of the base.

[0017] Compared with the prior art, the present invention has the following advantages:

[0018] This invention effectively suppresses electromagnetic crosstalk between signal transmission tubes during multi-channel parallel operation by setting up multiple independent probes and corresponding signal transmission tubes, combined with the electromagnetic wave absorption characteristics of the absorbing shielding layer. Compared with traditional physical isolation or time-division multiplexing technology, it not only ensures the stability of multi-probe synchronous operation, but also avoids communication failures caused by signal superposition, significantly improving the coding success rate and throughput.

[0019] The integrated design of the conveyor and the writing area enables automatic delivery and positioning of RFID products. The probe can accurately extend into the writing area to make contact with the chip contacts, eliminating contact misalignment or poor contact caused by manual operation. By replacing manual intervention with mechanical automation, operational complexity is reduced and continuous operation capability is improved.

[0020] The write code allocation module can dynamically allocate write code instructions to different probe channels according to the real-time task queue. Combined with the one-to-one correspondence mechanism of the signal transmission tube, it achieves load balancing across multiple read / write channels. This avoids equipment idleness or efficiency bottlenecks caused by local overload in traditional single-channel mode, maximizing hardware resource utilization. The absorbing shielding layer is directly integrated on the outside of the signal transmission tube, eliminating the need for a bulky additional metal shielding enclosure, simplifying the device structure and saving space. Attached Figure Description

[0021] The specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings, wherein:

[0022] Figure 1 This is a schematic diagram of the structure of this utility model;

[0023] Figure 2 This is a schematic diagram of the structure of the base in this utility model;

[0024] Figure 3 This is a schematic diagram of the structure of the transmission base and the coding bracket in this utility model. Figure 1 ;

[0025] Figure 4 This is a schematic diagram of the structure of the transmission base and the coding bracket in this utility model. Figure 2 ;

[0026] Figure 5 This is a structural schematic diagram of the RFID product in this utility model. Detailed Implementation

[0027] The present invention will be further described below with reference to the accompanying drawings:

[0028] like Figures 1 to 5The illustrated RFID automatic coding device includes a coding system terminal 1, a coding distribution module 2, an RFID reader 3, and a coding support 4. The coding system terminal 1 is connected to the coding distribution module 2. The coding support 4 has a coding area 41. The RFID automatic coding device also includes a conveyor seat 5 for transporting RFID products to the coding area 41. The coding support 4 has at least two probes 6 that can extend into the coding area 41 to contact the chip contacts 100 of the RFID products and thus perform data interaction. The probes 6 are connected to the RFID reader 3. A signal transmission tube 7 is provided between the coding distribution module 2 and the RFID reader 3 to transmit signals in a one-to-one correspondence with each probe 6. An absorbing shielding layer 71 is provided on the outside of the signal transmission tube 7 to limit signal interference between different signal transmission tubes 7.

[0029] This invention effectively suppresses electromagnetic crosstalk between signal transmission tubes 7 during multi-channel parallel operation by setting multiple independent probes 6 and corresponding signal transmission tubes 7, combined with the electromagnetic wave absorption characteristics of the absorbing shielding layer 71. Compared with traditional physical isolation or time-division multiplexing technology, it not only ensures the stability of synchronous operation of multiple probes 6, but also avoids communication failures caused by signal superposition, significantly improving the coding success rate and throughput. The linkage design between the conveyor 5 and the coding area 41 realizes the automatic delivery and positioning of RFID products. The probes 6 can accurately extend into the coding area 41 and contact the chip contacts 100, eliminating contact misalignment or poor contact caused by manual operation. By replacing manual intervention with mechanical automation, the complexity of operation is reduced and the continuous operation capability is improved.

[0030] In one embodiment, the absorbing shielding layer 71 is made of ferrite absorbing sheet or conductive foam, or other absorbing materials, to reduce manufacturing costs while ensuring electromagnetic compatibility.

[0031] The aforementioned code writing system terminal 1 can be a computer, and the code writing distribution module 2 can be a controller within the computer, or it can be an independent code writing distribution machine.

[0032] In one embodiment, the coding bracket 4 is provided with a mounting base 43 for mounting the probe 6. The coding bracket 4 is also provided with a first driving mechanism 42 that can drive the mounting base 43 to move up and down, thereby moving the probe 6 closer to or away from the RFID product chip contact 100. The first driving mechanism 42 can be a cylinder, a linear motor, or other driving mechanism. The probe 6 can be a spring probe, a cantilever probe, or a coaxial probe, or of course, other types of probe 6.

[0033] Furthermore, the writing bracket 4 is also equipped with a first linear module 44 that moves the mounting base 43 to the upper part of the writing area 41. The mounting base 43 is connected to the slide of the first linear module 44. The first linear module 44 is driven by a servo motor and cooperates with a high-precision guide rail to control the mounting base 43 to move in space along a preset trajectory, so that the probe 6 can be quickly positioned to the target coordinates above the writing area 41. Compared with traditional manual or pneumatic positioning methods, this is more accurate and can ensure the vertical alignment of the probe 6 with the RFID chip contact 100, avoiding abnormal contact resistance or signal attenuation caused by angular deviation.

[0034] Furthermore, the linear module 44 has a built-in pressure feedback system that can adjust the downward stroke of the mounting base 43 in real time according to the thickness or contact height of different RFID products. For example, for ultra-thin flexible tags, the module automatically reduces the downward pressure to prevent the probe 6 from piercing the contact. The motion control signal of the first linear module 44 is synchronized with that of the conveyor 5. When the conveyor 5 delivers the RFID product to the coding area 41, the module immediately drives the mounting base 43 to descend to the coding position, and quickly resets after coding is completed.

[0035] In one embodiment, the conveyor base 5 is provided with a positioning mechanism 51 for positioning the RFID product. Specifically, the RFID product has a positioning hole or positioning slot, and the positioning mechanism 51 includes a positioning post disposed on the conveyor base 5 and capable of being inserted into the positioning hole or positioning slot. The positioning post and the positioning hole / slot on the RFID product form a "plug-in" fit, and through the physical constraints of geometric shape, it ensures that the product is always in a preset coordinate position during the conveying process. Compared with visual positioning or pneumatic clamping methods, mechanical hard positioning can eliminate positioning errors caused by image recognition delay or air pressure fluctuations.

[0036] Furthermore, the conveyor seat 5 is provided with a receiving groove, and the conveyor seat 5 is provided with a second driving mechanism that can drive the positioning post into the receiving groove. This allows the RFID product to detach from the positioning post, making it easier to remove the RFID product. Furthermore, the second driving mechanism includes a third linear module, a cylinder, or other driving mechanism.

[0037] In one embodiment, the RFID automatic coding device further includes a base 10, on which the RFID reader / writer 3, coding bracket 4, and conveyor 5 are all connected. The conveyor 5 includes a second linear module 52 connected to the base 10, and a placement plate 53 for placing RFID products is provided on the slide of the second linear module 52. Furthermore, a caster assembly is provided at the lower part of the base 10, making it easier to adjust the placement position of the device.

[0038] In this case, a probe technology is used to detect signals from multiple RFID products. An absorbing shielding layer 71 is added outside the signal transmission tube 7 of different products to prevent interference. When the signal is transmitted to the coding distribution module 2, the information is automatically and uniquely distributed sequentially to the coding system terminal 1. The coding system terminal 1 then distributes the coding information to the corresponding coding products. After coding is completed, the correctness of the coding is automatically checked. If a coding error occurs, the corresponding code is automatically popped out and sent to the coding system terminal 1, which then reassigns the coding. This device can achieve simultaneous automatic coding of multiple products without duplication, and can verify whether there are coding errors, automatically judging the situation. This significantly improves production efficiency and ensures coding accuracy.

Claims

1. An RFID automatic coding device, characterized in that: The device includes a coding system terminal (1), a coding allocation module (2), an RFID reader (3), and a coding support (4). The coding system terminal (1) is connected to the coding allocation module (2). The coding support (4) has a coding area (41). The RFID automatic coding device also includes a conveyor seat (5) for conveying RFID products to the coding area (41). The coding support (4) has at least two probes (6) that can extend into the coding area (41) to contact the chip contacts of the RFID products and thus perform data interaction. The probes (6) are connected to the RFID reader (3). A signal transmission tube (7) is provided between the coding allocation module (2) and the RFID reader (3) to transmit signals in a one-to-one correspondence with each probe (6). An absorbing shielding layer (71) is provided on the outside of the signal transmission tube (7) to limit signal interference between different signal transmission tubes (7).

2. The RFID automatic coding device according to claim 1, characterized in that: The writing bracket (4) is provided with a mounting base (43) for mounting the probe (6), and the writing bracket (4) is also provided with a first driving mechanism (42) that can drive the mounting base (43) to rise and fall, thereby moving the probe (6) closer to or away from the RFID product chip contact.

3. The RFID automatic coding device according to claim 2, characterized in that: The coding bracket (4) is also provided with a first linear module (44) that drives the mounting base (43) to move to the upper part of the coding area (41). The mounting base (43) is connected to the slide of the first linear module (44).

4. An RFID automatic coding device according to any one of claims 1-3, characterized in that: The transfer seat (5) is equipped with a positioning mechanism (51) for positioning RFID products.

5. An RFID automatic coding device according to claim 4, characterized in that: The RFID product is provided with a positioning hole or positioning slot, and the positioning mechanism (51) includes a positioning column provided on the transmission seat (5) and capable of being inserted into the positioning hole or positioning slot.

6. An RFID automatic coding device according to any one of claims 1-3, characterized in that: The RFID automatic coding device also includes a base (10), and the RFID reader (3), coding bracket (4) and transmission base (5) are all connected to the base (10).

7. An RFID automatic coding device according to claim 6, characterized in that: The transfer base (5) includes a second linear module (52) connected to the base (10), and the slide of the second linear module (52) is provided with a placement plate (53) for placing RFID products.

8. An RFID automatic coding device according to claim 5, characterized in that: The conveyor seat (5) is provided with a receiving groove, and the conveyor seat (5) is provided with a second driving mechanism that can drive the positioning column to retract into the receiving groove.

9. An RFID automatic coding device according to claim 8, characterized in that: The second driving mechanism includes a third linear module or cylinder.

10. An RFID automatic coding device according to claim 6, characterized in that: The lower part of the base (10) is provided with a pulley system.

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