KR101270749B1 - Apparatus for detecting security article using color magnetic substance and method thereof - Google Patents

Abstract

Provided is a security product discrimination apparatus and method capable of determining the authenticity and type of a security article including a security element composed of a color magnetic material. The security product discriminating apparatus includes: a light irradiation unit for irradiating light onto an object including a magnetic body, a light sensing unit for sensing optical property information of the irradiated object, a magnetic sensing unit for measuring one or more magnetic property information of the magnetic body; The storage unit stores the reference detection information, which is a criterion for determining the true security article, and the measurement information including the detected optical property information and one or more magnetic property information with the reference detection information. And a control unit for identifying.

Description

Apparatus for detecting security article using color magnetic substance and method

The present invention relates to an apparatus and method for determining a security article comprising a magnetic material as a security element.

Documents such as banknotes, securities, passports, ID cards, and main documents that require security have been adopted in various ways to prevent forgery and alteration. For example, a method of printing a silver wire and a magnetic material to which a magnetic material is added is made by using ink, and detecting the printing pattern by a sensor and using the same as an element for checking authenticity. Basically, in order to prevent forgery and alteration, it is required to manufacture a functional paper that provides security to the paper itself. As a prior art document, the publication number is 10-2011-0089977, published on August 10, 2011, and the applicant is Korean There is a patent publication, which is a mint, "preventing or counterfeiting paper." However, in reality, the magnetic material used for the prevention of forgery has its own color of brown, red, and black instead of white, so that the third party can easily recognize the color information.

Provided is a security product discrimination apparatus and method capable of determining the authenticity and type of a security article including a security element composed of a color magnetic material.

According to an aspect, an apparatus for determining a security product includes a light irradiation unit for irradiating light onto an object including a magnetic body, a light sensing unit for sensing optical property information on the irradiated object, and measuring one or more magnetic property information of the magnetic body. The magnetic sensing unit, a storage unit for storing reference sensing information which is a criterion for determining a true security article, and measurement information including the detected optical characteristic information and one or more magnetic characteristic information are compared with the reference sensing information, and compared to the comparison result. And a control unit for identifying the inspected object.

The light irradiation unit may be configured to irradiate at least one or more of visible light and infrared light. The light irradiation unit may be configured to irradiate light having a light wavelength of 400 nm or more.

The reference sensing information may include a security product identifier, one or more reference light characteristic information of the security product, and one or more reference magnetic characteristic information of the security product.

The sensed optical property information may include color information of the magnetic material.

The sensed optical property information may include color information and pattern information of the magnetic material.

The sensed optical characteristic information includes image information, and the reference sensing information includes a security product identifier, reference image information of the security product, and one or more reference magnetic characteristic information of the security product, and the control unit includes image information and reference of the security product. A second condition that is satisfied when the detected one or more magnetic characteristic information belongs to one or more magnetic characteristic ranges including each of the first condition and the one or more reference magnetic characteristic information each having a similarity between the image information and a threshold value that is a criterion for determining similarity; If both conditions are met, the subject can be determined to be a true security product.

The controller may update the reference detection information by using the image information and the at least one magnetic characteristic information detected from the inspected object determined to be a true security product.

According to another aspect of the present invention, there is provided a method for determining a security product, the method comprising: irradiating light onto an object including a magnetic material, sensing optical property information of the object, and measuring one or more magnetic properties of the magnetic material; Comparing the measurement information representing the characteristic information and the at least one magnetic characteristic information with reference detection information which is a criterion for discriminating the true security article, and identifying the inspected object according to the comparison result.

According to an embodiment of the present invention, by using a security element composed of a color magnetic material, by detecting both color information and magnetic properties of the security element, while increasing the security of the security product, The authenticity can be easily determined.

1 is a block diagram showing a configuration of an apparatus for determining a security product including a color magnetic material according to an embodiment of the present invention.
FIG. 2 is a table illustrating an example of reference sensing information of FIG. 1.
3 is a flowchart illustrating a method of determining a security product including a color magnetic material according to an embodiment of the present invention.
4 is a view showing reflectance according to the light wavelength of the pale magnetic ink and the general magnetic ink used as the security element according to an embodiment of the present invention.

Hereinafter, an embodiment of the present invention will be described in detail with reference to the accompanying drawings. In the following description of the present invention, a detailed description of known functions and configurations incorporated herein will be omitted when it may make the subject matter of the present invention rather unclear. In addition, the terms described below are defined in consideration of the functions of the present invention, and this may vary depending on the intention of the user, the operator, or the like. Therefore, the definition should be based on the contents throughout this specification.

1 is a block diagram showing a configuration of an apparatus for determining a security product including a color magnetic material according to an embodiment of the present invention.

The security product determining apparatus 100 is configured to determine whether the security product is forged or not. The security product determining apparatus 100 may be configured to determine the type of the security product as well as the forgery of the security product. Here, the security product refers to various products requiring security, such as banknotes, checks, securities, stamps, resident cards, passports, credit cards, gift certificates and confidential documents.

According to one embodiment, a security product includes a color magnetic material as a security element. Here, the color includes both achromatic and chromatic colors, but in particular, may include white and pale colors other than those with low brightness represented by ordinary magnetic bodies. In addition, the color magnetic material may be configured to have a pattern or a shape composed of various colors.

Magnetic material according to an embodiment is a magnetic material coated with white to pale color, and may appear to be white to pale colors, and may have characteristics of shielding of electromagnetic waves or magnetic electromagnetic waves. The magnetic body may have a white color to one or more colors selected from inorganic or organic coating methods, plating methods, encapsulation methods, multilayer plating methods, multilayer coating methods, and mixed capsule methods.

Magnetic material according to one embodiment is a double ferric oxyhydroxide (ferric oxyhydroxide); Ferric oxide; Hard ferrite into which metal ions are introduced; Divalent metals alloyed with nickel and cobalt metals; And metal oxides; may be formed of any one or more materials selected from. Alternatively, the magnetic material according to another embodiment may include double ferric oxyhydroxide; Ferric oxide; Hard ferrite into which metal ions are introduced; Divalent metals alloyed with nickel and cobalt metals; And metal oxides; may be formed of any one or more materials selected from. In addition, the magnetic body may be formed to look in a specific color other than white to pale color.

4 is a view showing reflectance according to the light wavelength of the pale magnetic ink and the general magnetic ink used as the security element according to an embodiment of the present invention.

In FIG. 4, the X axis represents the light wavelength and the Y axis represents the light reflectance. 0% represents complete absorption and 100% represents complete reflection in the light reflectance axis. Referring to FIG. 4, in the light wavelength region of 400 nm or less, since the reflectances of the pale color magnetic ink and the general magnetic ink according to the embodiment are the same, the colors may look the same. On the other hand, in the visible light wavelength region of 400 nm or more and the light wavelength region of near infrared ray, a remarkable difference arises in light reflectance. Therefore, in the visible light wavelength region, the general magnetic material has a dark color, and the pale magnetic material has a vivid color. In the infrared light region, the general magnetic ink appears black, and the gallstone magnetic ink is hard to see.

Referring to FIG. 1, the inspected object 10 represents a security product for which forgery is determined by the security product determination apparatus 100. In FIG. 1, the pattern 5 indicates that the magnetic body 3 may be composed of a plurality of strip-shaped patterns consisting of two colors. The pattern 5 of FIG. 1 is an example of a pattern of the magnetic body 3, and the pattern 5 is formed of two or more colors, and may be formed in various shapes and combinations of shapes. The magnetic body 3 may be a pale magnetic ink having reflectance characteristics according to light wavelengths as shown in FIG. 4.

Referring to FIG. 1, the security product determining apparatus 100 may include a controller 110, a light emitter 120, a light detector 130, a magnetic detector 140, a storage 150, and an output 160. It may include.

The controller 110 may be configured to control the overall operation of the security product determination apparatus 100. The controller 110 may be configured as a processor capable of operating an application including an operating system and sensing information processing algorithm. The controller 110 may drive and control an operation of the light emitter 120, the light detector 130, the magnetic detector 140, the storage 150, and the output 160.

The light irradiation part 120 irradiates light to the irradiated object 10 containing the magnetic body 3. According to one embodiment, the light irradiator 120 determines at least one of visible light and infrared light to determine whether the irradiated object 10 is a true security article including a pale magnetic ink as shown in FIG. 4 as a security element. It can be configured to irradiate the above light. For example, the light irradiation unit 120 may irradiate light having a light wavelength of 400 nm or more. To this end, the light irradiation unit 120 may be configured of at least one of a light emitting diode (LED) emitting visible light and an LED emitting infrared light.

The light detector 130 detects light property information of the irradiated object 10. The light detector 130 may be configured of various types of optical sensors such as a contact image sensor, a camera module, and a color sensor. The photo detector 130 may be configured using a transistor.

The sensed optical property information may include color information of the magnetic material. In addition, the sensed optical property information may include color information and pattern information of the magnetic material. Alternatively, the detected optical characteristic information may include image information.

The magnetic sensing unit 140 is configured to measure one or more magnetic characteristic information of the magnetic body. The magnetic sensing unit 140 does not include a magnet, and includes a first sensor (not shown) configured to measure the magnetized hard magnetic material and a second sensor (not shown) including a magnet and configured to measure soft magnetic material and hard magnetic material. It may be configured to include.

The storage unit 150 stores reference detection information on the true security article. The reference detection information is information that serves as a reference for determining whether the controller 110 is a true security article. The reference sensing information may be set by a user of the security product determining apparatus 100 and may be stored through an external network. The reference sensing information may include a security product identifier, one or more reference light characteristic information of the security product, and one or more reference magnetic characteristic information of the security product.

The controller 110 may compare the measurement information including the detected optical characteristic information and one or more magnetic characteristic information with the reference sensing information, and identify the irradiated object according to the comparison result. The measurement information may include sensed optical characteristic information and at least one magnetic characteristic information.

The optical characteristic information includes color information, pattern information, image information, and the like. In the security product determining apparatus 100, one or more kinds of optical characteristic information among the plurality of optical characteristic information may be used.

The light characteristic information in the reference sensing information may include the light characteristic information for each wavelength region of the light irradiated by the light irradiator 120 of FIG. 1. For example, the reference sensing information may include, for one security product, optical characteristic information detected at the time of visible light irradiation and optical characteristic information detected at the time of infrared light irradiation.

The magnetic property information indicates a property of the magnetic material, and may be represented by a μ-H curve, a B-H curve, or various kinds of characteristic values. The characteristic value may include permeability, saturation magnetic flux density, residual magnetic flux density, coercive force, hysteresis loss value, and the like. The magnetic characteristic information of the reference sensing information may be included in plural numbers.

The controller 110 may include each of one or more pieces of magnetic characteristic information of the first condition and the reference detection information, wherein a similarity between the detected image information of the security product and the reference image information of the reference detection information is equal to or greater than a threshold value that is a criterion for determining similarity. If both of the second conditions satisfied when the magnetic characteristic information sensed by the magnetic sensing sensor 140 belong to one or more magnetic characteristic ranges included are satisfied, the inspected object 10 may be determined as a true security product. The first condition is a similarity between the third condition which is satisfied when the similarity between the sensed image information at the time of visible light irradiation and the image information for the visible light is greater than or equal to the threshold value and the sensed information at the time of infrared light irradiation, and the image information for the infrared light. Is determined to be satisfied when all of the fourth conditions satisfying are greater than or equal to the threshold, but is not limited thereto.

If it is determined that the inspected object 10 is a forged article, the controller 110 may generate a warning text or a warning sound and output the warning text or the warning sound. The output unit 160 may include a display for outputting an image, a speaker for outputting an audio signal, and the like.

The controller 110 may update the reference sensing information by using the optical characteristic information and the at least one magnetic characteristic information detected from the inspected object determined to be a true security product. By such an update, reference detection information, which is a criterion for determining whether or not a security product is forged, may be optimized to be suitable for an environment in which the security product determining apparatus 100 is located.

FIG. 2 is a table illustrating an example of reference sensing information of FIG. 1.

As shown in the table of FIG. 2, the reference sensing information may include the security product identifier, the image information as the optical characteristic information of the security product, and one or more magnetic characteristic information of the security product. For example, the image information of the forgery security product whose security product ID is "security paper # 1" may be "Image # 1", and the magnetic characteristic may be "Value # 1".

The image information may be configured in the same format as the image information detected by the light detector 130. The image information may be the image itself or may be a feature value of the image itself, such as edge information. The image information may be an image of the security product itself or an image of a magnetic material included in the security product.

3 is a flowchart illustrating a method of determining a security product including a color magnetic material according to an embodiment of the present invention.

The security product determining apparatus 100 of FIG. 1 irradiates light onto an object including a magnetic material (310). The security product determining apparatus 100 may irradiate at least one of visible light and infrared light, and in particular, may irradiate light having an optical wavelength of 400 nm or more.

The security product determining apparatus 100 detects optical property information of an object to be inspected (320).

The security product determining apparatus 100 measures one or more magnetic characteristic information of the magnetic body (330).

The security product determining apparatus 100 compares the detected optical characteristic information and the measurement information representing the one or more magnetic characteristic information with the reference sensing information, and identifies the inspected object according to the comparison result (340).

The measurement information may include sensed image information and at least one magnetic characteristic information, and the reference sensing information may include a security product identifier, image information of the security product, and one or more magnetic characteristic information of the security product. One that includes each of the first condition and one or more magnetic characteristic information, wherein the similarity between the image of the security product and the image information of the reference detection information is equal to or greater than a threshold that is a criterion for determining similarity when identifying an object according to the comparison result. When both of the second conditions satisfied when the detected magnetic characteristic information falls within the above magnetic characteristic range are satisfied, the inspected object may be determined as a true security product.

One aspect of the present invention may be embodied as computer readable code on a computer readable recording medium. The code and code segments implementing the above program can be easily deduced by a computer programmer in the field. A computer-readable recording medium includes all kinds of recording apparatuses in which data that can be read by a computer system is stored. Examples of the computer-readable recording medium include ROM, RAM, CD-ROM, magnetic tape, floppy disk, optical disk, and the like. The computer-readable recording medium may also be distributed over a networked computer system and stored and executed in computer readable code in a distributed manner.

It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit or scope of the invention. Therefore, the scope of the present invention should not be limited to the above-described embodiments, but should be construed to include various embodiments within the scope of the claims.

110: control unit 120: light irradiation unit
130: light detector 140: magnetic detector
150: storage unit 160: output unit

Claims (10)

A light irradiation unit for irradiating light to the irradiated object including the magnetic body;
A light detecting unit detecting light property information of the irradiated object;
A magnetic sensing unit sensing one or more magnetic characteristic information of the magnetic body;
A storage unit for storing reference sensing information including reference image information and at least one reference magnetic characteristic information; And
A control unit which compares the optical property information imaged after the detection with the reference image information, and compares the detected one or more magnetic property information with one or more reference magnetic property information to identify an object according to two comparison results;
Security product determination device comprising a. The method of claim 1,
And the light irradiator is configured to irradiate at least one or more of visible light and infrared light. The method of claim 2,
And the light irradiation unit is configured to irradiate light having a light wavelength of 400 nm or more. The method of claim 1,
And the reference sensing information includes a security product identifier, one or more reference optical characteristic information of the security product, and one or more reference magnetic characteristic information of the security product. The method of claim 1,
And the detected optical characteristic information includes color information of the magnetic material. The method of claim 1,
And the detected optical characteristic information includes color information and pattern information of the magnetic material. The method of claim 1,
The control unit may include at least one magnetic characteristic range including a first condition and a plurality of reference magnetic characteristic information each having a similarity between the image information of the security product and the reference image information, which is equal to or greater than a threshold value for determining similarity. And when both of the second conditions satisfied when the sensed one or more magnetic property information belongs are satisfied, determining the inspected object as a true security product. The method of claim 7, wherein
And the controller is further configured to update the reference detection information by using image information and at least one magnetic characteristic information detected from an inspected object determined as a true security product. Storing reference sensing information including reference image information and one or more reference magnetic characteristic information;
Irradiating light to the irradiated object including the magnetic material;
Sensing optical property information of the irradiated object and sensing one or more magnetic property information of the magnetic material;
Imaging the sensed optical characteristic information to compare the imaged optical characteristic information with the reference image information, and comparing the detected one or more magnetic characteristic information with the one or more reference magnetic characteristic information; And
Identifying the subject according to two comparison results; Security product determination method comprising a. 10. The method of claim 9,
The identifying the inspected object according to the comparison result may include:
The detected one in one or more magnetic characteristic ranges including each of the one or more pieces of reference magnetic characteristic information including a first condition that a similarity between the image information of the security product and the reference image information is equal to or greater than a threshold that is a criterion for determining similarity. And when both of the second conditions satisfied when the above magnetic property information belongs are satisfied, determining the inspected object as a true security product.

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