CN214751954U

CN214751954U - RFID label capable of preventing data tampering

Info

Publication number: CN214751954U
Application number: CN202121293860.0U
Authority: CN
Inventors: 成丽红; 江岸; 朱运清; 张鹏飞; 陈圯; 龙嘉雯
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-06-10
Filing date: 2021-06-10
Publication date: 2021-11-16
Anticipated expiration: 2031-06-10

Abstract

The utility model discloses a prevent RFID label of data manipulation, relate to the relevant technical field of RFID label, including the label body, the inside of label body is provided with induction coil and mutual coil, the inside of label body is close to induction coil department and is provided with hall element, hall element's output is connected with the singlechip, the internally mounted of label body has button cell, button cell's output is connected with the interference wire through the singlechip, the inside iron core that is provided with of label body, the interference wire wraparound connects at the iron core outer wall, the inside cavity of having seted up of label body, induction coil and mutual coil are located the inside of two cavities respectively, iron core place direction is perpendicular with label body place plane, the interference wire is all around establishing the multiring at the outer wall of every iron core. Through the cooperation use between each above-mentioned device, can make the label body only can realize the interaction of data with specific reading ware between, can effectively prevent that the inside data of label body from being falsified to can promote the stability of data interaction.

Description

RFID label capable of preventing data tampering

Technical Field

The utility model relates to a RFID label correlation technique field specifically is a prevent RFID label of data manipulation.

Background

The RFID system has the advantages that the RFID system is used for completing information interaction by utilizing induced current generated in the RFID system, the information storage interaction structure in the tag is too simple, so that the situation of cracking is easy to occur, information leakage is easy to cause, and the data in the tag is easy to damage due to tampering.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a prevent RFID label of data manipulation to solve the problem that proposes in the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a prevent RFID label of data manipulation, includes the label body, and the inside of label body is provided with induction coil and mutual coil, and the inside of label body is close to induction coil department and is provided with hall element, and hall element's output is connected with the singlechip, and the internally mounted of label body has button cell, and button cell can provide stable power source for disturbing the subassembly.

Button cell's output is connected with the interference wire through the singlechip, and the inside of label body is provided with a plurality of iron cores, and the interference wire wraparound is at the outer wall of iron core, and mutual coil passes through the singlechip and establishes ties with the inside memory chip of label body, guarantees that the data interaction can effectively be executed.

Preferably, two cavities are formed in the label body, the induction coil and the interaction coil are respectively located in the two cavities, and the two coils are effectively isolated.

Preferably, a plurality of iron cores distribute in the inside of label body and be close to the corner, and iron core direction is perpendicular with label body place plane, promotes the interactive stability of data.

Preferably, the plane of induction coil place is parallel with mutual coil place plane, and both places the plane and flushes with the plane of label body place, avoids mutual interference between the two, avoids mutual coil to disturb induction coil's normal work simultaneously.

Preferably, the interference wire is wound on the outer wall of each iron core for multiple circles, multiple circles of interference wires between the same iron cores are insulated, and the interference wires are insulated from the iron cores, so that the process that the iron cores generate the interference magnetic fields can be stably carried out.

Compared with the prior art, the beneficial effects of the utility model are that:

the utility model provides a prevent RFID label of data manipulation uses through the cooperation of induction coil, hall element and singleton machine, can realize that interactive coil only carries out the interaction of data with the reading ware that can match to can prevent effectively that other reading ware from carrying out the comparatively action of risky data, can promote the security of data.

Drawings

Fig. 1 is a cross-sectional view of a tag body according to an embodiment of the present invention;

fig. 2 is a system block diagram of an embodiment of the present invention.

In the figure: 1. a label body; 11. a chamber; 2. an induction coil; 3. an interaction coil; 4. a Hall element; 5. a single chip microcomputer; 6. a button cell; 7. an interference wire; 8. and (3) an iron core.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Example 1

Referring to fig. 1-2, the present embodiment provides an RFID tag for preventing data tampering, including a tag body 1, a chip for storing information is disposed inside the tag body 1, and the chip performs data interaction with an external reader through an interaction coil 3.

The inside of label body 1 is provided with induction coil 2 and mutual coil 3, and the inside of label body 1 is close to induction coil 2 department and is provided with hall element 4, and when external reading the ware and using, induction coil 2's inside produced induction field, and hall element 4 carries out the detection to induction field, and the voltage that hall element 4 tip produced is carried to the output of singlechip 5 immediately.

Wherein, the hall element 4 inside the label body 1 presets the voltage value range that can produce at induction coil 2 with the mutual ware of reading of mutual coil 3 normal information interaction, and when the voltage value that hall element 4 produced was not when presetting value within range, singlechip 5 disconnection mutual coil 3 prevents to carry out the information interaction between mutual coil 3 and the ware of reading urgently.

The output end of the Hall element 4 is connected with a single chip microcomputer 5, a button battery 6 is installed inside the tag body 1, and the button battery 6 can provide electric energy for the single chip microcomputer 5 and an interference wire 7.

The output of button cell 6 is connected with interference wire 7 through singlechip 5, and the inside of label body 1 is provided with a plurality of iron cores 8, when interference wire 7's inside through-current, can be in iron core 8's inside production magnetic field, and then iron core 8's magnetic field can be to the magnetic field implementation interference that reads the ware and produce, and then can block the data interaction between reading the ware and the interactive coil 3.

The interference wire 7 is wound on the outer wall of the iron core 8, the interaction coil 3 is connected with the storage chip inside the label body 1 in series through the single chip microcomputer 5, the iron core 8 can enable the magnetic field generated by the interference wire 7 to be more concentrated, and then the strength of the magnetic field generated by the interference wire 7 is improved.

When the voltage generated by the Hall element 4 is not within the preset voltage value, the singlechip 5 disconnects the interaction coil 3, so that the interaction coil 3 cannot form a closed passage, and further data interaction between the interaction coil 3 and a reader can be prevented.

Two cavities 11 have been seted up to label body 1's inside, and induction coil 2 and mutual coil 3 are located two cavities 11's inside respectively, can implement the isolation to between induction coil 2 and the mutual coil 3, prevent to interfere with each other between the two.

The plurality of iron cores 8 are distributed in the tag body 1 close to the corners, and the direction of the iron cores 8 is perpendicular to the plane of the tag body 1, so that the area of the region where the magnetic field generated by the interference wire 7 can interfere is further increased.

The plane of induction coil 2 place is parallel with the plane of mutual coil 3 place, and both place planes flush with the plane of label body 1 place, prevents that mutual coil 3 from receiving the interference from induction coil 2 when carrying out data interaction, can also make mutual coil 3 just right with the reading ware simultaneously, promotes the stability of data interaction.

The interference wire 7 is wound on the outer wall of each iron core 8 for multiple circles, the interference wire 7 located between the same iron cores 8 is insulated, and the interference wire 7 and the iron cores 8 are insulated, so that the iron cores 8 can stably generate a magnetic field, and normal implementation of a data interaction blocking function is facilitated.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A data tamper resistant RFID tag comprising a tag body (1), characterized in that: an induction coil (2) and an interaction coil (3) are arranged inside the tag body (1), a Hall element (4) is arranged inside the tag body (1) and close to the induction coil (2), the output end of the Hall element (4) is connected with a single chip microcomputer (5), and a button battery (6) is arranged inside the tag body (1);

the output end of the button cell (6) is connected with an interference wire (7) through a single chip microcomputer (5), a plurality of iron cores (8) are arranged inside the label body (1), the interference wire (7) is wound on the outer wall of each iron core (8), and the interaction coil (3) is connected with a storage chip inside the label body (1) in series through the single chip microcomputer (5).

2. The RFID tag of claim 1, wherein: two cavities (11) are formed in the label body (1), and the induction coil (2) and the interaction coil (3) are respectively located in the two cavities (11).

3. The RFID tag of claim 1, wherein: a plurality of iron cores (8) are distributed in the interior of the tag body (1) and close to the corners, and the direction of the iron cores (8) is perpendicular to the plane of the tag body (1).

4. The RFID tag of claim 1, wherein: the plane of the induction coil (2) is parallel to the plane of the interaction coil (3), and the planes of the induction coil and the interaction coil are flush with the plane of the label body (1).

5. The RFID tag of claim 1, wherein: the interference wire (7) is wound on the outer wall of each iron core (8) for multiple turns, the interference wire (7) located between the same iron cores (8) is insulated, and the interference wire (7) is insulated from the iron cores (8).