Magnetic reading element and marked product with same

Abstract

The invention provides a magnetic identifying and reading element and a marked product with the same, and belongs to the technical field of machine identifying and reading, the magnetic identifying and reading element comprises a base material and a magnetic area, the magnetic area is arranged on the base material, a magnetic pattern for machine identifying and reading is arranged in the magnetic area, and the magnetic pattern is an asymmetric pattern; the magnetic pattern is provided with at least two sectioning planes with different areas along the reading direction, and the sectioning planes at two positions, symmetrical relative to the center line, of the magnetic pattern are equal in area. When the magnetic sensor is used, the area change trends of the section cutting planes of the magnetic patterns in the forward and reverse reading directions are the same, so that the waveform characteristics detected by the magnetic sensor are the same, and the situation of reading errors caused by different reading directions is avoided; according to the magnetic identifying and reading element provided by the invention, the problem that forward and reverse identifying and reading information of a machine identifying and reading element in the prior art is inconsistent is solved.

Description

Technical Field

[0001] This invention relates to the field of machine reading technology, specifically to a magnetic reading element and a marking product having the same. Background Technology

[0002] Machine-readable components can connect to computers or the internet to transmit and analyze information about objects, making it easier for people to understand this information. Magnetic regions formed by fabricating magnetic materials are an important type of machine-readable component due to their advantages such as recording function and non-volatility.

[0003] Currently, magnetic areas are typically printed with numbers, letters, or other symbols as a recorder of item information.

[0004] However, most magnetic recording symbols are irregular in shape. During machine reading, the information read in the forward direction and the information read in the reverse direction of the magnetic recording symbol are significantly different. This will increase the computational load of the machine software recognition algorithm and may even cause misreading. Summary of the Invention

[0005] Therefore, the technical problem to be solved by the present invention is to overcome the problem of inconsistent forward and reverse reading information of machine reading elements in the prior art, thereby providing a magnetic reading element and a marking product having the same.

[0006] To address the aforementioned technical problems, the present invention provides a magnetic reading element, comprising:

[0007] Substrate;

[0008] A magnetic region is disposed on the substrate, and the magnetic region has a magnetic pattern for machine reading, the magnetic pattern being an asymmetrical pattern;

[0009] The magnetic pattern is cut along the thickness direction to form a cross-section with an area. The magnetic pattern has at least two cross-sections with different areas along the reading direction. The cross-sections at two positions symmetrical about the center line of the magnetic pattern have equal areas.

[0010] Optionally, the magnetic pattern has at least two magnetic variation regions along the reading direction, and the two magnetic variation regions are symmetrical about the center line relative to the magnetic pattern.

[0011] Optionally, the magnetic pattern has three magnetic variation regions along the reading direction, and the three magnetic variation regions are symmetrical about the center line relative to the magnetic pattern.

[0012] Optionally, the magnetic pattern has four magnetic variation regions along the reading direction, and the four magnetic variation regions are symmetrical about the center line relative to the magnetic pattern.

[0013] Optionally, the magnetic pattern is a continuously distributed pattern.

[0014] Optionally, the magnetic pattern may comprise a plurality of discontinuously distributed patterns.

[0015] Optionally, the magnetic pattern is a non-rotationally symmetric and non-mirror-symmetric character and / or geometric pattern.

[0016] Optionally, the magnetic pattern is printed using magnetic ink.

[0017] Optionally, the magnetic ink has hard magnetic properties.

[0018] The present invention provides a marking product, including the magnetic reading element described in any of the above embodiments.

[0019] The technical solution of this invention has the following advantages:

[0020] 1. The magnetic reading element provided by this invention reads a magnetic region on a substrate using a magnetic sensor. The magnetic pattern within the magnetic region is sliced ​​along the thickness direction, forming a cross-section with an area. The area of ​​the cross-section of the asymmetrical magnetic pattern changes along the reading direction, causing the magnetic flux to change with the area of ​​the cross-section, generating pulse fluctuations in the magnetic induction electromotive force. These pulse changes can be detected by the magnetic sensor, forming waveform characteristics. By adjusting the thickness of different positions of the magnetic pattern, the areas of the cross-sections at symmetrical positions along the center line of the magnetic pattern along the reading direction are made equal. The trend of area change of the cross-sections of the magnetic pattern along the forward and reverse reading directions is the same, thus the magnetic sensor detects the same pulse changes in the magnetic induction electromotive force, i.e., the same waveform characteristics, avoiding reading errors caused by different reading directions. The magnetic reading element provided by this invention solves the problem of inconsistent reading information between forward and reverse directions in existing machine reading elements.

[0021] 2. The magnetic reading element provided by this invention detects two magnetic change regions symmetrically aligned with the center line of a magnetic pattern. Along the forward reading direction, the detected waveforms, from left to right, are the upper half-wave, lower half-wave, and upper half-wave, lower half-wave, with symmetrical waveform feature distribution. Similarly, along the reverse reading direction, the detected waveforms, from left to right, are the upper half-wave, lower half-wave, and upper half-wave, lower half-wave, with symmetrical waveform feature distribution. The waveform features detected by the magnetic sensor are consistent along both the forward and reverse reading directions, resulting in more accurate information recording.

[0022] 3. The magnetic reading element provided by the present invention has three magnetic change regions symmetrical about the center line relative to the magnetic pattern. The middle magnetic change region is located at the center line. The magnetic sensor can obtain symmetrical waveform features. The waveform features detected by the magnetic sensor are consistent along the forward and reverse reading directions, resulting in more accurate information recording.

[0023] 4. The magnetic reading element provided by the present invention has four magnetic change regions symmetrical about the center line relative to the magnetic pattern. The magnetic sensor can obtain symmetrical waveform features. The waveform features detected by the magnetic sensor are consistent along the forward and reverse reading directions, resulting in more accurate information recording.

[0024] 5. The magnetic reading element provided by the present invention has a magnetic pattern set as a continuously distributed pattern, which can be composed of different characters and / or geometric shapes. The diversity of the magnetic pattern is improved according to the different arrangement of characters and / or geometric shapes.

[0025] 6. The magnetic reading element provided by the present invention has a magnetic pattern set as multiple non-continuously distributed patterns, which can be composed of different characters and / or geometric shapes. The diversity of the magnetic pattern is improved according to the different arrangement of characters and / or geometric shapes.

[0026] 7. The magnetic reading element provided by this invention features non-rotationally symmetric and non-mirror-symmetric characters and / or geometric patterns with asymmetry at the center line. The thickness of the magnetic pattern at the symmetrical position relative to the center line is set to different values ​​so that the area of ​​the cross-section at the symmetrical position is equal. The magnetic sensor can obtain symmetrical waveform features. The waveform features detected by the magnetic sensor are consistent along the forward and reverse reading directions, resulting in more accurate information recording.

[0027] 8. The magnetic reading element provided by the present invention uses magnetic ink that is usually colored, giving the magnetic pattern an appearance that can be read by the naked eye. It is consistent with the appearance of traditional magnetic elements, but carries different reading information and cannot be distinguished by the naked eye, thus improving the concealment of the reading information of the magnetic pattern.

[0028] 9. The magnetic reading element provided by the present invention uses magnetic ink made of hard magnetic material, thus having hard magnetic properties. Hard magnetic material is difficult to demagnetize after magnetization and has high residual magnetic induction intensity. It is usually magnetized by an excitation device first and then detected by a magnetic sensor, which can be applied to conventional anti-counterfeiting devices.

[0029] 10. The marking product provided by the present invention has any of the above advantages because it uses the magnetic reading element described above. Attached Figure Description

[0030] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0031] Figure 1 This is a schematic diagram of a first embodiment of the magnetic reading element provided in this invention.

[0032] Figure 2 This is a schematic diagram of a second embodiment of the magnetic reading element provided in this invention.

[0033] Figure 3 This is a schematic diagram of a third embodiment of the magnetic reading element provided in this invention.

[0034] Figure 4 This is a schematic diagram of the waveform characteristics along the positive reading direction;

[0035] Figure 5 This is a schematic diagram of the waveform characteristics along the reverse reading direction.

[0036] Explanation of reference numerals in the attached figures:

[0037] 1. Magnetic pattern; 2. Magnetic variation area; 3. Thickened area; 4. Center line. Detailed Implementation

[0038] The technical solution of the present invention will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0039] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0040] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0041] Furthermore, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0042] This embodiment provides a magnetic reading element capable of reading consistent information in both forward and reverse directions, used as a recording carrier for item information.

[0043] like Figure 1 , Figure 4 , Figure 5 The illustration shows a specific implementation of a magnetic reading element provided in this embodiment, comprising: a substrate and a magnetic region, wherein the magnetic region is disposed on the substrate, and the magnetic region has a magnetic pattern 1 for machine reading, the magnetic pattern 1 being an asymmetrical pattern; the magnetic pattern 1 is cut along the thickness direction to form a cross-section with an area, the magnetic pattern 1 having at least two cross-sections with different areas along the reading direction, and the cross-sections of the magnetic pattern 1 at two positions symmetrical about the center line 4 having equal areas.

[0044] In use, a magnetic sensor reads the magnetic region on the substrate. The magnetic pattern 1 within the magnetic region is cut along the thickness direction to form a cross-section with an area. The area of ​​the cross-section of the asymmetrical magnetic pattern 1 changes along the reading direction, and the magnetic flux changes with the area of ​​the cross-section, forming a pulse fluctuation of the magnetic induction electromotive force. The magnetic sensor can detect this pulse change, forming a waveform feature. By adjusting the thickness of the magnetic pattern 1 at different positions, the area of ​​the cross-section at the symmetrical position along the center line 4 of the magnetic pattern 1 along the reading direction is made equal. The trend of the area change of the cross-section of the magnetic pattern 1 along the forward and reverse reading directions is the same, so the pulse change of the magnetic induction electromotive force detected by the magnetic sensor is the same, that is, the waveform feature is the same, avoiding the reading error caused by different reading directions. The magnetic reading element provided in this embodiment solves the problem of inconsistent reading information between the forward and reverse reading of machine reading elements in the prior art.

[0045] It should be added that, such as Figure 1-3As shown, the X-axis is the reading direction, and the Y-axis, perpendicular to the X-axis, is the thickness direction. The magnetic pattern 1 has three protruding ends, and a thickened region 3 is provided at the end of each protruding end. The width of the thickened region 3 is the same as the width of the magnetic change region 2. The thickened region 3 can be provided on one or two of the protruding ends, or it can be provided on all three protruding ends. The thickness of the thickened region 3 can be adjusted as needed so that the area of ​​the cross-section on both sides of the symmetrical position along the center line 4 of the magnetic pattern 1 is equal.

[0046] like Figure 1 , Figure 4 , Figure 5 As shown, in the magnetic reading element provided in this embodiment, the magnetic pattern 1 has at least two magnetic change regions 2 along the reading direction, and the two magnetic change regions 2 are symmetrical about the center line 4 relative to the magnetic pattern 1. Detection is performed along the positive reading direction. At the beginning of the first magnetic change region 2, the magnetic flux increases from zero to one, forming a positive first peak. At the end of the first magnetic change region 2, the magnetic flux decreases, forming a negative second peak. At the beginning of the second magnetic change region 2, the magnetic flux increases, forming a positive second peak. At the end of the second magnetic change region 2, the magnetic flux decreases from one to one, forming a negative first peak. The detected waveform, from left to right, is an upper half-wave, a lower half-wave, and an upper half-wave, a lower half-wave, with the waveform feature distribution centrally symmetrical. Detection is performed along the reverse reading direction. The two magnetic change regions 2 are symmetrical about the center line 4 relative to the magnetic pattern 1. Therefore, the detected waveform, from left to right, is an upper half-wave, a lower half-wave, and an upper half-wave, a lower half-wave, with the waveform feature distribution centrally symmetrical. Detection along both the positive and reverse reading directions results in consistent waveform features detected by the magnetic sensor, leading to more accurate information recording. Specifically, the magnetic change region 2 refers to the region where the area of ​​the cross-section of the magnetic pattern 1 changes, forming the area where the detected waveform changes. Alternatively, as an alternative implementation, a magnetic variation region 2 may be provided on the magnetic pattern 1, and the magnetic variation region 2 may be provided symmetrically with respect to the magnetic pattern 1 along the center line 4.

[0047] In the magnetic reading element provided in this embodiment, the magnetic pattern 1 has three magnetic variation regions 2 along the reading direction, and the three magnetic variation regions 2 are symmetrical about the center line 4 relative to the magnetic pattern 1. The middle magnetic variation region 2, which is symmetrical about the center line 4 relative to the magnetic pattern 1, is located at the center line 4. A symmetrical waveform feature can be obtained by the magnetic sensor. The waveform feature detected by the magnetic sensor is consistent along both the forward and reverse reading directions, resulting in more accurate information recording. Alternatively, as an alternative implementation, the magnetic pattern 1 can be provided with four or more magnetic variation regions 2 along the reading direction according to design requirements, with multiple magnetic variation regions 2 being symmetrical about the center line 4 relative to the magnetic pattern 1.

[0048] In the magnetic reading element provided in this embodiment, the magnetic pattern 1 has four magnetic variation regions 2 along the reading direction, and the four magnetic variation regions 2 are symmetrical about the center line 4 relative to the magnetic pattern 1. The four magnetic variation regions 2, symmetrical about the center line 4 relative to the magnetic pattern 1, can produce symmetrical waveform features through a magnetic sensor. When detected along both the forward and reverse reading directions, the waveform features detected by the magnetic sensor are consistent, resulting in more accurate information recording. Alternatively, as an alternative implementation, the magnetic pattern 1 can be configured with five or more magnetic variation regions 2 along the reading direction according to design requirements, with multiple magnetic variation regions 2 being symmetrical about the center line 4 relative to the magnetic pattern 1.

[0049] In the magnetic reading element provided in this embodiment, the magnetic pattern 1 is a continuously distributed pattern. A continuously distributed pattern can be composed of different characters and / or geometric shapes, and the diversity of the magnetic pattern 1 is increased by different arrangements of the characters and / or geometric shapes.

[0050] In the magnetic reading element provided in this embodiment, the magnetic pattern 1 includes multiple non-continuously distributed patterns. These multiple non-continuously distributed patterns can be composed of different characters and / or geometric shapes, increasing the diversity of the magnetic pattern 1 by varying the arrangement of the characters and / or geometric shapes.

[0051] In the magnetic reading element provided in this embodiment, the magnetic pattern 1 is a non-rotationally symmetric and non-mirror-symmetric character and / or geometric pattern. The non-rotationally symmetric and non-mirror-symmetric character and / or geometric pattern has asymmetry along the center line 4. The thickness of the magnetic pattern 1 at positions symmetrical to the center line 4 is set to different values ​​so that the area of ​​the cross-section at the symmetrical positions is equal. A symmetrical waveform feature can be obtained through a magnetic sensor. Detection along both the forward and reverse reading directions shows consistent waveform features detected by the magnetic sensor, resulting in more accurate information recording.

[0052] In the magnetic reading element provided in this embodiment, the magnetic pattern 1 is printed using magnetic ink. Magnetic ink typically has color, giving the magnetic pattern 1 a visually readable appearance, consistent with the appearance of traditional magnetic elements. However, the reading information it carries is different and cannot be distinguished by the naked eye, thus improving the concealment of the reading information in the magnetic pattern 1. Alternatively, as an alternative implementation, a colored masking layer can be provided on the magnetic pattern 1 to obscure the visual features.

[0053] In the magnetic reading element provided in this embodiment, the magnetic ink has hard magnetic properties. The magnetic ink is made of hard magnetic material, thus possessing hard magnetic properties. Hard magnetic materials are difficult to demagnetize after magnetization and have high residual magnetism. Typically, it is first magnetized by an excitation device and then detected by a magnetic sensor, making it suitable for conventional reading devices. Alternatively, as an alternative implementation, the magnetic ink can also be made of soft magnetic material. Soft magnetic materials are easily demagnetized after magnetization, requiring magnetization and detection to be performed simultaneously, making it suitable for dedicated reading devices.

[0054] Working principle:

[0055] like Figure 1 , Figure 4 , Figure 5 As shown, the magnetic reading element provided in this embodiment, when in use, reads the magnetic area on the substrate through a magnetic sensor. The magnetic pattern 1 within the magnetic area is cut along the thickness direction to form a cross-section with an area. The area of ​​the cross-section of the asymmetrical magnetic pattern 1 changes along the reading direction, and the magnetic flux changes with the change in the area of ​​the cross-section, forming a pulse fluctuation of the magnetic induction electromotive force. This pulse change can be detected by the magnetic sensor, forming a waveform feature. By adjusting the thickness of the magnetic pattern 1 at different positions, the area of ​​the cross-section at the symmetrical position of the magnetic pattern 1 along the center line 4 of the reading direction is made equal. The trend of the change in the area of ​​the cross-section of the magnetic pattern 1 along the forward and reverse reading directions is the same, so the pulse change of the magnetic induction electromotive force detected by the magnetic sensor is the same, that is, the waveform feature is the same, realizing consistent reading information in the forward and reverse directions.

[0056] In addition, this embodiment also provides a marking product that uses the magnetic reading element described in the above embodiments to achieve consistent reading information in both forward and reverse directions. Specifically, the marking product can be banknotes, banknotes, tickets, certificates, documents, credit cards, product packaging, etc.

[0057] Obviously, the above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the scope of protection of this invention.

Claims

1. A magnetic reading element, characterized in that, include: Substrate; A magnetic region is disposed on the substrate, and the magnetic region has a magnetic pattern (1) for machine reading, wherein the magnetic pattern (1) is an asymmetrical pattern; The magnetic pattern (1) is cut along the thickness direction to form a cross-section with an area. The magnetic pattern (1) has at least two cross-sections with different areas along the reading direction. The cross-sections of the magnetic pattern (1) at two positions symmetrical about the center line (4) have equal areas.

2. The magnetic reading element according to claim 1, characterized in that, The magnetic pattern (1) has at least two magnetic variation regions (2) along the reading direction, and the two magnetic variation regions (2) are symmetrical about the center line (4) relative to the magnetic pattern (1).

3. The magnetic reading element according to claim 2, characterized in that, The magnetic pattern (1) has three magnetic variation regions (2) along the reading direction, and the three magnetic variation regions (2) are symmetrical about the center line (4) relative to the magnetic pattern (1).

4. The magnetic reading element according to claim 3, characterized in that, The magnetic pattern (1) has four magnetic variation regions (2) along the reading direction, and the four magnetic variation regions (2) are symmetrical about the center line (4) relative to the magnetic pattern (1).

5. The magnetic reading element according to any one of claims 1-4, characterized in that, The magnetic pattern (1) is a continuously distributed pattern.

6. The magnetic reading element according to any one of claims 1-4, characterized in that, The magnetic pattern (1) includes multiple discontinuously distributed patterns.

7. The magnetic reading element according to any one of claims 1-4, characterized in that, The magnetic pattern (1) is a non-rotationally symmetric and non-mirror symmetric character and / or geometric pattern.

8. The magnetic reading element according to any one of claims 1-4, characterized in that, The magnetic pattern (1) is made by printing with magnetic ink.

9. The magnetic reading element according to claim 8, characterized in that, The magnetic ink has hard magnetic properties.

10. A labeled product, characterized in that, It includes the magnetic reading element according to any one of claims 1-9.

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