Bank bag lock anti-disassembly PCB label of UHF frequency band

Abstract

The utility model relates to the technical field of PCB (printed circuit board) labels, and discloses a UHF (ultra high frequency) band anti-disassembly PCB label for a bank bag lock, which comprises a lock body used for locking a bank bag. The barb structure body is arranged on the lock body; the barb groove is formed in the lock body and is matched with the barb structure body; the PCB tag structure comprises a radiation layer which is used as a main radiation body of a tag antenna; and the anti-tamper inner loop antenna layer is nested on the inner side of the radiation layer, when the bank bag is illegally opened, the tag can be broken due to the design of a reverse anti-tamper V-shaped secant line, so that the anti-tamper inner loop antenna layer is broken, and the tag loses the read-write function, and due to the characteristic, the anti-tamper effect is effectively enhanced, and the illegal opening behavior can be found in time.

Description

Technical Field

[0001] This utility model relates to the field of PCB label technology, specifically a UHF band tamper-proof PCB label for bank bag locks. Background Technology

[0002] With economic development and the increasing prosperity of the financial industry, security issues in bank transportation are receiving more and more attention. To ensure the safety of valuables such as banknotes and important documents during transportation and to prevent theft and unauthorized intrusion, traditional bank bags are usually sealed with plastic tamper-evident structures. However, this traditional plastic tamper-evident structure has certain limitations, lacking information storage and traceability. Once the bag is illegally opened, it is difficult to trace and find out the reason, and it cannot achieve an effective tamper-evident effect. Therefore, we propose a UHF band bank bag lock tamper-evident PCB tag to solve the above-mentioned problems. Utility Model Content

[0003] To address the shortcomings of existing technologies, this utility model provides a UHF band bank bag lock tamper-proof PCB tag, which solves the problem that traditional bank bag PCB tags usually use plastic tamper-proof structures for sealing. However, this traditional plastic tamper-proof structure has certain limitations, such as lack of information storage and traceability. Once the bag is illegally opened, it is difficult to trace and find out the cause, and it cannot achieve an effective tamper-proof effect.

[0004] To achieve the above objectives, this utility model is implemented through the following technical solution: a UHF band bank bag lock tamper-proof PCB tag, including a lock body for locking the bank bag;

[0005] A barbed structure is provided on the lock body;

[0006] A barb groove is provided on the lock body and is adapted to the barb structure;

[0007] PCB label structure, including:

[0008] The radiating layer serves as the main radiator of the tag antenna;

[0009] The tamper-proof inner ring antenna layer is nested inside the radiating layer;

[0010] The chip connects the radiating layer and the tamper-proof inner ring antenna layer, and is used to store identification information and detect the antenna circuit status.

[0011] The reverse anti-tamper V-cut line is located between the anti-tamper inner ring antenna layer and the radiating layer, and is positioned in the middle of the reverse side of the anti-tamper inner ring antenna layer. It is used to cut off the antenna circuit in the event of unauthorized disassembly.

[0012] The dielectric layer, located between the radiating layer and the tamper-proof inner ring antenna layer, is used to support and isolate the radiating layer and the tamper-proof inner ring antenna layer.

[0013] Preferably, the radiating layer is a dipole antenna structure.

[0014] Preferably, the tamper-proof inner ring antenna layer forms a closed loop with the radiating layer through a reverse tamper-proof V-cut line. When the tag is illegally disassembled, the reverse tamper-proof V-cut line breaks, causing a change in the loop impedance and triggering the chip to output an alarm signal.

[0015] Preferably, the tamper-proof inner ring antenna layer has a forward extension that overlaps with the turning area of ​​the reverse tamper-proof V-shaped cut line.

[0016] Preferably, the dielectric layer is designed with FR-4 material.

[0017] Beneficial effects

[0018] This invention provides a UHF band tamper-proof PCB tag for bank bag locks. Compared with the prior art, it has the following advantages:

[0019] The UHF band bank bag lock's tamper-evident PCB tag features a reverse tamper-evident V-shaped cut design that breaks when the bank bag is illegally opened. This causes the inner tamper-evident antenna layer to disconnect, rendering the tag unusable. This feature effectively enhances the tamper-evident effect, allowing for timely detection of unauthorized opening attempts. Simultaneously, a chip connects the radiating layer and the inner tamper-evident antenna layer, storing identification information and detecting the antenna circuit status. It can record crucial information such as sealing time, operator, and sealing location. This information storage not only provides identification for the bank bag but also provides a basis for tracking and investigating the reasons for unauthorized opening, improving the security and transparency of the transportation process. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0021] Figure 2 This is a schematic diagram of the structure of the connecting components such as the radiating layer and the tamper-proof inner ring antenna layer of this utility model.

[0022] In the diagram: 101, lock body; 102, barbed structure; 103, barbed groove; 2, PCB label structure; 201, radiation layer; 202, anti-tamper inner ring antenna layer; 203, chip; 204, reverse anti-tamper V-cut line; 205, dielectric layer. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] like Figure 1-2 As shown:

[0025] A UHF band bank bag lock tamper-proof PCB tag, including a lock body 101 for locking the bank bag;

[0026] The barb structure 102 is set on the lock body 101;

[0027] The barb groove 103 is provided on the lock body 101 and is adapted to the barb structure 102;

[0028] PCB label structure 2 includes:

[0029] The radiating layer 201 serves as the main radiator of the tag antenna and is a dipole antenna structure. The dipole antenna structure helps to improve the antenna's radiation efficiency and signal transmission stability.

[0030] The tamper-proof inner ring antenna layer 202 is nested inside the radiating layer 201;

[0031] Chip 203 connects the radiating layer 201 and the tamper-proof inner ring antenna layer 202, and is used to store identification information and detect the antenna circuit status.

[0032] The reverse anti-tamper V-cut line 204 is located between the anti-tamper inner ring antenna layer 202 and the radiation layer 201, and is located in the middle of the reverse side of the anti-tamper inner ring antenna layer 202. It is used to cut off the antenna circuit when the device is illegally disassembled.

[0033] The tamper-proof inner ring antenna layer 202 forms a closed loop with the radiating layer 201 through the reverse tamper-proof V-cut line 204. When the tag is illegally tampered with, the reverse tamper-proof V-cut line 204 breaks, causing a change in the loop impedance and triggering the chip 203 to output an alarm signal. The tamper-proof inner ring antenna layer 202 has a forward extension that overlaps with the turning area of ​​the reverse tamper-proof V-cut line 204. This design helps to provide more effective tamper protection while maintaining antenna performance.

[0034] The dielectric layer 205, located between the radiating layer 201 and the tamper-proof inner ring antenna layer 202, is used to support and isolate the radiating layer 201 and the tamper-proof inner ring antenna layer 202. The dielectric layer 205 is designed with FR-4 material, which has good mechanical strength and electromagnetic properties and can meet the requirements of the tag in the actual use environment.

[0035] The PCB tag structure 2 is embedded in the lock body 101, and the radiation layer 201 is located on the surface of the lock body 101. When the bank bag is locked, the tag can be effectively exposed to the reading range of the external wireless identification system while maintaining good protective performance.

[0036] In this implementation scheme: When the bank bag needs to be locked and used for transportation, the PCB tag structure 2 is inserted into the lock body 101. At this time, the radiating layer 201 is located on the surface of the lock body 101 to facilitate wireless communication with an external reader. Under normal circumstances, the PCB tag structure 2 communicates with the external reader through the radiating layer 201, and the identification information stored in the chip 203 is read to verify the identity of the bank bag. The radiating layer 201, as a dipole antenna structure, can effectively transmit and receive wireless signals in the UHF band, ensuring reliable information transmission. When an unauthorized tampering attempt occurs, due to the anti-tamper inner ring antenna layer 202 and the reverse anti-tamper V-cut line 204... With its unique design, if an external force is applied to the tag in an attempt to unlock it, the reverse tamper-proof V-cut line 204 will be broken. The breakage of the reverse tamper-proof V-cut line 204 occurs precisely within the loop of the inner tamper-proof antenna layer 202, causing the antenna loop to be completely disconnected. Due to the disconnection of the inner tamper-proof antenna layer 202, the tag loses its ability to form an effective antenna loop, thus completely losing its read / write function. Even if an unauthorized person attempts to read or modify the information in the chip 203, they will be unable to do so because the wireless communication link has been destroyed. Due to the tag's tamper-proof mechanism, the identification information of the bank bag cannot be illegally obtained or tampered with, thereby ensuring information security during the bank's transportation process.

[0037] When a bank bag is illegally opened, the tag will break due to the reverse tamper-proof V-shaped cut line 204, causing the tamper-proof inner ring antenna layer 202 to disconnect and the tag to lose its read / write function. This feature effectively enhances the tamper-proof effect, allowing unauthorized opening attempts to be detected promptly. Simultaneously, the chip 203 connects the radiation layer 201 and the tamper-proof inner ring antenna layer 202, storing identification information and detecting the antenna circuit status. It can record crucial information such as sealing time, operator, and sealing location. This information storage not only provides identification for the bank bag but also provides a basis for tracking and investigating the reasons for unauthorized opening, improving the security and transparency of the transportation process.

[0038] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A UHF bank bag lock tamper evident PCB tag, characterized by: The application relates to a bank bag locking device. A locking body (101) for locking a bank bag; A hook structure (102) arranged on the locking body (101); A hook groove (103) arranged on the locking body (101) and matched with the hook structure (102); A PCB label structure (2) comprising: A radiation layer (201) serving as a main radiator of a label antenna; An anti-disassembly inner ring antenna layer (202) nested on the inner side of the radiation layer (201); A chip (203) connected with the radiation layer (201) and the anti-disassembly inner ring antenna layer (202) and used for storing identification information and detecting an antenna loop state; A reverse anti-disassembly V-shaped cutting line (204) arranged between the anti-disassembly inner ring antenna layer (202) and the radiation layer (201) and located at the middle position of the reverse side of the anti-disassembly inner ring antenna layer (202) and used for cutting off the antenna loop when the label is illegally disassembled; 2. The UHF bank bag lock tamper-evident PCB tag according to claim 1, characterized in that: A medium layer (205) arranged between the radiation layer (201) and the anti-disassembly inner ring antenna layer (202) and used for supporting and isolating the radiation layer (201) and the anti-disassembly inner ring antenna layer (202).

3. The UHF bank bag lock tamper-evident PCB tag of claim 1, wherein: The radiation layer (201) is a dipole antenna structure.

4. The UHF bank bag lock tamper-evident PCB tag of claim 1, wherein: The anti-disassembly inner ring antenna layer (202) forms a closed loop with the radiation layer (201) through the reverse anti-disassembly V-shaped cutting line (204), when the label is illegally disassembled, the reverse anti-disassembly V-shaped cutting line (204) is broken to cause the loop impedance to change and trigger the chip (203) to output an alarm signal.

5. The UHF bank bag lock tamper-evident PCB tag of claim 1, wherein: The anti-disassembly inner ring antenna layer (202) is provided with a front extension part and overlaps the turning area of the reverse anti-disassembly V-shaped cutting line (204). The medium layer (205) is designed of FR-4 material.

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