Assembly for realizing direct communication of two RFID tags

Abstract

The utility model discloses an assembly for realizing direct communication of two RFID tags, which comprises a first RFID tag, a second RFID tag and a first connecting structure capable of being connected with the first RFID tag and the second RFID tag, and the first connecting structure comprises a first connecting block capable of being connected to the first RFID tag and a second connecting block capable of being connected to the second RFID tag. The first connecting block is provided with a first connecting circuit connected with the first RFID tag chip, the second connecting block is provided with a second connecting circuit connected with the second RFID tag chip, and the first connecting circuit is connected with the second connecting circuit to form a peripheral circuit capable of enabling chips in the first RFID tag and the second RFID tag to form communication connection. The two RFID tag chips form a closed loop through the peripheral circuit of the first connection structure, direct communication of two different RFID tags can be directly achieved, the problems that a communication link is lengthy and poor in real-time performance in a traditional scheme are solved, associated goods tags can be automatically grouped only through physical connection, and the operation link is remarkably shortened.

Description

TECHNICAL FIELD

[0001] The utility model relates to a kind of components for realizing that two RFID tags carry out direct communication. BACKGROUND

[0002] As a kind of non-contact automatic identification technology, RFID technology has been widely used in logistics tracking, warehouse management, intelligent shelf and other fields.The traditional RFID system is composed of RFID tag and reader, and its working principle is: the reader activates the tag chip through radio frequency signal and reads its stored identification information.However, the RFID tag in the prior art is an independent single structure, and there is no direct communication capability between tags in physical or protocol level.

[0003] In practical application, when two or more RFID tags need to be managed in groups, each tag identification code needs to be scanned manually, and the group logic relationship needs to be established manually through the background system.This method has the following defects: first, manual operation is inefficient, especially when a large number of tag group relationships need to be dynamically adjusted, the operation time cost increases exponentially;Second, manual input is prone to number misreading and association errors, which reduces data reliability;In addition, the existing method needs to continuously interact with the reader and the background system, and once the system is offline or the reader coverage is insufficient, real-time group updating cannot be realized.

[0004] In recent years, although some researches have tried to realize networking between tags by enhancing the wireless communication function of the tags, the realization needs to integrate complex communication modules inside the tags, which leads to a sharp increase in hardware cost, and there are limitations such as short communication distance and poor anti-interference ability.Other schemes propose to realize logical association by rewriting the protocol layer data of the tags, but this method still relies on the relay of the reader, and cannot break through the technical bottleneck of direct interaction between tags.

[0005] Therefore, how to establish a stable and reliable direct communication mechanism between two or more RFID tags without the intervention of external devices through low-cost physical structure innovation has become a technical problem to be solved in the field.

[0006] The utility model is made based on the above situation. CONTENT OF UTILITY MODEL

[0007] The utility model overcomes the shortcomings of the prior art and provides a component capable of realizing direct communication between two RFID tags.

[0008] The utility model is realized by the following technical solutions:

[0009] An assembly for enabling direct communication between two RFID tags, comprising a first RFID tag, a second RFID tag, and a first connecting structure capable of connecting the two, the first connecting structure comprising a first connecting block capable of connecting to the first RFID tag, and a second connecting block capable of connecting to the second RFID tag, the first connecting block being provided with a first connecting circuit capable of connecting to a chip in the first RFID tag, the second connecting block being provided with a second connecting circuit capable of connecting to a chip in the second RFID tag, the first connecting circuit and the second connecting circuit being connected to form a peripheral circuit capable of enabling the chips in the first RFID tag and the second RFID tag to form a communication connection.

[0010] An assembly for enabling direct communication between two RFID tags as claimed in the preceding claim, the second connecting block being provided with a jack, and the first connecting block being provided with a pin capable of being inserted into the jack to enable the first connecting circuit and the second connecting circuit to be electrically connected.

[0011] An assembly for enabling direct communication between two RFID tags as claimed in the preceding claim, the first RFID tag being provided with a first slot for inserting the first connecting block, and the second RFID tag being provided with a second slot for inserting the second connecting block.

[0012] An assembly for enabling direct communication between two RFID tags as claimed in the preceding claim, the first connecting block being provided with a first limiting hole, the slot wall of the first slot being provided with a first elastic pin capable of extending into the first limiting hole, the second connecting block being provided with a second limiting hole, and the slot wall of the second slot being provided with a second elastic pin capable of extending into the second limiting hole.

[0013] An assembly for enabling direct communication between two RFID tags as claimed in the preceding claim, the assembly further comprising a second connecting structure capable of detachably connecting the first RFID tag and the second RFID tag together.

[0014] An assembly for enabling direct communication between two RFID tags as claimed in the preceding claim, the second connecting structure comprising a connecting plug, and the first RFID tag and the second RFID tag each being sleeved on the connecting plug.

[0015] An assembly for enabling direct communication between two RFID tags as claimed in the preceding claim, the second RFID tag being provided with a plug-in slot, and the first RFID tag being provided with a plug block capable of being inserted into the plug-in slot.

[0016] An assembly for enabling direct communication between two RFID tags as claimed in the preceding claim, the connecting plug being provided with a clamping slot on its outer wall, and the second RFID tag being provided with a clasp capable of being buckled to the clamping slot.

[0017] An assembly for enabling direct communication between two RFID tags as described above, further comprising a reader / writer capable of communicating with the first and second RFID tags.

[0018] An assembly for enabling direct communication between two RFID tags as described above, further comprising a system terminal capable of receiving reader / writer signals.

[0019] Compared with the prior art, the utility model has the following advantages:

[0020] The utility model discloses a closed loop is formed to two RFID tag chips through the peripheral circuit of first connecting structure, can directly realize the direct communication of two different RFID tags, solved the problem of long communication link, poor real -time performance in traditional scheme, and the association goods label only needs physical connection and can form a team automatically, significantly shorten the operation link.

[0021] Compared with the wireless communication scheme, the physical connection mode based on the closed loop has stronger anti - electromagnetic interference ability, can work stably in the complex environment such as metal shelf, high humidity. Without upgrading the communication protocol of existing RFID tag or adding wireless module, only through external connecting structure and simple peripheral circuit can realize the function.

[0022] When manual operation, only need to complete the physical connection action, can automatically trigger the team formation logic, avoids the numbering misreading risk caused by manual input. The circuit architecture formed by the closed loop provides physical carrier for the derivative functions such as bidirectional power supply and data synchronization. The physical connection state can be designed as the communication enabling condition, avoids the error association caused by signal crosstalk in the wireless scheme. Meanwhile, disconnecting connection cancels the team formation characteristics, naturally supports the physical tamperproof mechanism. BRIEF DESCRIPTION OF DRAWINGS

[0023] The specific embodiments of the utility model will be further described in detail below in combination with the drawings, wherein:

[0024] Fig. 1 It is the structural schematic diagram of the utility model;

[0025] Fig. 2 It is the exploded schematic diagram of the utility model;

[0026] Fig. 3 It is the schematic diagram that the peripheral circuit and the chip in the first RFID tag and the second RFID tag form the closed loop in the utility model. SPECIFIC EMBODIMENT

[0027] The utility model will be further described in combination with the drawings:

[0028] As Figs. 1 to 3The component for enabling direct communication between two RFID tags comprises a first RFID tag 1, a second RFID tag 2, and a first connecting structure 3 capable of connecting the two RFID tags, wherein the first connecting structure 3 comprises a first connecting block 31 capable of being connected to the first RFID tag 1 and a second connecting block 32 capable of being connected to the second RFID tag 2, the first connecting block 31 is provided with a first connecting circuit 71 capable of being connected to a chip in the first RFID tag 1, the second connecting block 32 is provided with a second connecting circuit 72 capable of being connected to a chip in the second RFID tag 2, and the first connecting circuit 71 is connected to the second connecting circuit 72 to form a peripheral circuit 7 capable of enabling the chips in the first RFID tag 1 and the second RFID tag 2 to form a communication connection.

[0029] The peripheral circuit 7 of the first connecting structure 3 enables the chips of the two RFID tags to form a closed loop, direct communication between two different RFID tags can be directly realized, the problem of long communication link and poor real-time performance in the traditional scheme is solved, the associated product tags only need to be physically connected to automatically form a team, and the operation link is significantly shortened. Compared with the wireless communication scheme, the physical connection mode based on the closed loop has stronger anti-electromagnetic interference capability and can stably work in a complex environment such as a metal shelf and high humidity. Without the need to upgrade the communication protocol of the existing RFID tag or add a wireless module, the function can be realized only by the external connecting structure and the simple peripheral circuit 7.

[0030] In an embodiment, the second connecting block 32 is provided with a jack 321, and the first connecting block 31 is provided with a pin 311 capable of being inserted into the jack 321 to enable the first connecting circuit 71 to be electrically connected to the second connecting circuit 72.

[0031] The pin 311 is inserted into the jack 321 to complete the conduction connection of the circuit, the operator can quickly complete the alignment and insertion, the RFID tag team operation time is greatly shortened, and the error insertion rate tends to be zero. The pin 311 can adopt an elastic gold-plated probe structure, which automatically compensates for the size tolerance of the jack 321 during the insertion process, thereby avoiding poor contact caused by manufacturing errors. The first connecting block 31 and the second connecting block 32 can be independently disassembled and replaced, so that when one side of the connecting block is damaged, the entire connecting structure does not need to be scrapped, thereby reducing the maintenance cost.

[0032] Specifically, the first RFID tag 1 is provided with a first slot 11 for inserting the first connecting block 31, and the second RFID tag 2 is provided with a second slot 21 for inserting the second connecting block 32. The first connecting block 31 can be fixed in the first slot 11 by friction, and the second connecting block 32 can be fixed in the second slot 21 by friction, so that the connection is very convenient and fast.

[0033] Further, the first connecting block 31 is provided with a first limiting hole 312, the slot wall of the first slot 11 is provided with a first elastic pin 111 capable of extending into the first limiting hole 312, the second connecting block 32 is provided with a second limiting hole 322, and the slot wall of the second slot 21 is provided with a second elastic pin 211 capable of extending into the second limiting hole 322. Thus, the first connecting block 31 and the second connecting block 32 are further prevented from being pulled out by themselves. The upper part of the first elastic pin 111 and the second elastic pin 211 is a spherical surface or a conical surface, and when the first connecting block 31 and the second connecting block 32 are forcibly pulled out, the first elastic pin 111 and the second elastic pin 211 can automatically exit the limiting hole.

[0034] In an embodiment, the assembly further comprises a second connecting structure capable of detachably connecting the first RFID tag 1 and the second RFID tag 2 together. Thus, the first RFID tag 1 and the second RFID tag 2 are further fixed, thereby increasing the stability of the circuit connection.

[0035] Specifically, the second connecting structure comprises a connecting plug 4, and the first RFID tag 1 and the second RFID tag 2 are sleeved on the connecting plug 4. Further, the outer wall of the connecting plug 4 is provided with a clamping groove 41, and the second RFID tag 2 is provided with a buckle 23 capable of being buckled with the clamping groove 41. Thus, the second RFID tag 2 is better connected to the connecting plug 4. The second RFID tag 2 is provided with a plug-in slot 20, and the first RFID tag 1 is provided with a plug block 12 capable of being plugged into the plug-in slot 20. Through the plugging of the plug block 12 and the plug-in slot 20, the two are more stably connected.

[0036] In an embodiment, the assembly further comprises a reader-writer 5 capable of communicating with the first RFID tag 1 and the second RFID tag 2, and a system terminal 6 capable of receiving the signal of the reader-writer 5. Through the reader-writer 5, hundreds or thousands of RFID tag products can be directly set into groups of two and uploaded to the system terminal 6 to automatically complete the grouping of RFID products, automatically mark, and the efficiency is extremely high, which greatly reduces the error rate.

Claims

1. A component for enabling direct communication between two RFID tags, characterized in that: The device includes a first RFID tag (1), a second RFID tag (2), and a first connection structure (3) that can be connected to both. The first connection structure (3) includes a first connection block (31) that can be connected to the first RFID tag (1) and a second connection block (32) that can be connected to the second RFID tag (2). The first connection block (31) is provided with a first connection circuit (71) that can be connected to the chip inside the first RFID tag (1), and the second connection block (32) is provided with a second connection circuit (72) that can be connected to the chip inside the second RFID tag (2). The first connection circuit (71) and the second connection circuit (72) are connected to form a peripheral circuit (7) that enables the chips inside the first RFID tag (1) and the second RFID tag (2) to form a communication connection.

2. The component for enabling direct communication between two RFID tags according to claim 1, characterized in that: The second connecting block (32) is provided with a socket (321), and the first connecting block (31) is provided with a pin (311) that can be inserted into the socket (321) so that the first connecting circuit (71) and the second connecting circuit (72) are electrically connected.

3. The component for enabling direct communication between two RFID tags according to claim 2, characterized in that: The first RFID tag (1) is provided with a first slot (11) for inserting the first connecting block (31), and the second RFID tag (2) is provided with a second slot (21) for inserting the second connecting block (32).

4. The component for enabling direct communication between two RFID tags according to claim 3, characterized in that: The first connecting block (31) is provided with a first limiting hole (312), the first slot (11) is provided with a first spring pin (111) that can extend into the first limiting hole (312) on the slot wall, the second connecting block (32) is provided with a second limiting hole (322), and the second slot (21) is provided with a second spring pin (211) that can extend into the second limiting hole (322) on the slot wall.

5. A component for enabling direct communication between two RFID tags according to any one of claims 1-4, characterized in that: The component also includes a second connection structure that can detachably connect the first RFID tag (1) and the second RFID tag (2) together.

6. A component for enabling direct communication between two RFID tags according to claim 5, characterized in that: The second connection structure includes a connector (4), and the first RFID tag (1) and the second RFID tag (2) are both sleeved on the connector (4).

7. A component for enabling direct communication between two RFID tags according to claim 6, characterized in that: The second RFID tag (2) is provided with a slot (20), and the first RFID tag (1) is provided with a plug (12) that can be inserted into the slot (20).

8. A component for enabling direct communication between two RFID tags according to claim 7, characterized in that: The outer wall of the connector (4) is provided with a slot (41), and the second RFID tag (2) is provided with a buckle (23) that can be engaged with the slot (41).

9. A component for enabling direct communication between two RFID tags according to claim 1, characterized in that: The component also includes a reader (5) capable of communicating with the first RFID tag (1) and the second RFID tag (2).

10. A component for enabling direct communication between two RFID tags according to claim 9, characterized in that: The components also include a system terminal (6) capable of receiving signals from the reader (5).

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