Appraisal device for metal material such as tin badge, appraisal method, program, and storage container

Abstract

To investigate the quality of a metal material such as a tin badge.SOLUTION: An appraisal device for appraising a metal material comprises: a first light source unit that irradiates a first surface of the metal material with first light having a first optical axis; a second light source unit that irradiates the first surface with second light at an angle where a second optical axis forms a predetermined angle with a vertical axis that is perpendicular to the first surface; a photographing unit that has a third optical axis and photographs the first surface; a support unit that contacts a second surface of the metal material, supports the metal material, and rotates the metal material around the vertical axis as a rotation axis; an analysis unit that irradiates the second surface with X-rays and analyzes a material of the metal material; and an output unit that outputs appraisal results for the metal material based on a first image of the first surface photographed by the photographing unit when the first light is irradiated, a second image of the first surface photographed by the photographing unit when the second light is irradiated, and an analysis result obtained by the analysis unit when the X-rays are irradiated.SELECTED DRAWING: Figure 13

Description

[Technical Field]

[0001] The present invention relates to an authentication device, an authentication method, a program, and a storage container for metal materials such as badges. [Background technology]

[0002] Metal badges are widely known as accessories that can be attached to clothing, bags, hats, etc. For example, metal badges have images, colors, patterns, figures, letters, etc. drawn on their flat front surfaces. Techniques for manufacturing metal badges and other such items are widely known.

[0003] Specifically, a can badge has a structure that includes a transparent resin sheet, a design sheet, and a design sheet laminate that is made up of resin sheets, etc. Furthermore, a can badge has a front can structure, etc. Known as such a structure is a can badge that has a structure that prevents moisture from penetrating the inside and damaging the paper and the drawn design (for example, Patent Document 1, etc.).

[0004] Another type of can badge is one that consists of a base and a printed part. The can badge has a main body with the printed part on the surface and a back body that fits into the main body, and the base is made of aluminum vapor-deposited transfer paper. Can badges with this structure and the ability to print patterns and other features are known that reduce unit costs, maintain the texture of metal, and offer comparable color reproducibility (see, for example, Patent Document 2). [Prior art documents] [Patent documents]

[0005] [Patent Document 1] Patent No. 6546636 [Patent Document 2] Utility Model Registration No. 3210146 Summary of the Invention [Problem to be solved by the invention]

[0006] However, the technology of Patent Document 1 and the like cannot check the quality, etc. of metal materials such as can badges.

[0007] Therefore, an object of the present invention is to check the quality of metal materials such as can badges. [Means for solving the problem]

[0008] In order to achieve the above purpose, the appraisal device for appraising metal materials is a first light source unit that irradiates a first light having a first optical axis onto a first surface of the metal material; a second light source unit that emits second light at an angle such that a second optical axis forms a predetermined angle with respect to a vertical axis that is perpendicular to the first surface; a third optical axis, an imaging unit that images the first surface; a support part that contacts the second surface of the metal material, supports the metal material, and rotates the metal material around the vertical axis as a rotation axis; an analysis unit that applies X-rays to the second surface to analyze the material of the metal material; an output unit that outputs an appraisal result of the metal material based on a first image of the first surface photographed by the photographing unit when the first light is applied, a second image of the first surface photographed by the photographing unit when the second light is applied, and an analysis result of the analysis unit when the X-ray is applied; Equipped with. [Effects of the Invention]

[0009] According to the present invention, it is possible to check the quality of metal materials such as can badges. [Brief explanation of the drawings]

[0010] [Figure 1] FIG. 1 is a diagram illustrating an example of the overall configuration of an appraisal device. [Figure 2] FIG. 2 illustrates an example of a hardware configuration. [Figure 3] 1A and 1B are diagrams illustrating an example of the structure of a stage, etc.; [Figure 4] FIG. 10 is a diagram showing a comparative example between a first image and a second image. [Figure 5] FIG. 10 is a diagram illustrating an example of a support base. [Figure 6] FIG. 10 is a diagram illustrating an example of overall processing. [Figure 7] FIG. 10 is a diagram illustrating an example of edge processing. [Figure 8] 10 is an example showing an example of block division. [Figure 9] FIG. 10 is a diagram showing an example of a scratch. [Figure 10] This is an example of evaluation of scratches. [Figure 11] 10A and 10B are diagrams showing an example of manufacturing a storage container. [Figure 12] FIG. 10 is a diagram showing an example of a storage container. [Figure 13] FIG. 2 is a diagram illustrating an example of a functional configuration. [Figure 14] FIG. 10 is a diagram illustrating an example of an analysis result. DETAILED DESCRIPTION OF THE INVENTION

[0011] Specific examples will be described below with reference to the accompanying drawings. In the following description, the reference numerals in the drawings refer to the same elements. Furthermore, the embodiments are not limited to the specific examples below, and the embodiments may include elements other than those described below.

[0012] Hereinafter, the direction of gravity (also referred to as the vertical direction) will be referred to as the "Z axis" (i.e., the vertical axis). Next, the direction perpendicular to the Z axis and in the depth direction will be referred to as the "Y axis." Then, the direction perpendicular to the Y axis and in the right-hand direction will be referred to as the "X axis." Therefore, the "X-Y plane" is a vertical plane that is perpendicular to the vertical axis. Note that in the following explanation, "perpendicular" is not limited to being strictly perpendicular, but also includes being approximately perpendicular. The same applies to perpendicular, parallel, and other angles.

[0013] [Overall configuration example] 1 is a diagram showing an example of the overall configuration of an appraisal device 100. For example, the appraisal device 100 includes a personal computer (hereinafter referred to as "PC 10"), a first light source device 11, a second light source device 12, a camera 13, an X-ray sensor 14, and a stage 15. The appraisal device 100 may also include peripheral devices such as a database 16.

[0014] The stage 15 is configured to include, for example, a support base 20. However, the stage 15 may include a mechanism such as gears in addition to the support base 20. In addition, the stage 15 may include mechanisms for supporting and changing the positions of the first light source device 11, the second light source device 12, the camera 13, and the X-ray sensor 14.

[0015] The appraisal is carried out by placing a can badge 21, which is the object to be appraised, on a support stand 20.

[0016] Hereinafter, the first light source device 11, the second light source device 12, the camera 13, the X-ray sensor 14, and the stage 15 will be described as examples in which they operate under the control of the PC 10. However, each device is not limited to operating under the control of the PC 10, and may operate based on other control devices or user operations inputted through input devices such as switches.

[0017] Therefore, in the following example, the images captured and generated by the camera 13 are acquired by the PC 10. However, the appraisal device 100 may also include an image processing device that performs image processing on the generated images. Similarly, sensor data indicating the analysis results obtained by a sensor such as the X-ray sensor 14 is acquired by the PC 10. However, the analysis results may also be generated by performing analysis processing on the sensor data by an information processing device such as the PC 10.

[0018] [Hardware configuration example] 2 is a diagram illustrating an example of a hardware configuration. For example, the PC 10 is an information processing device including a central processing unit (hereinafter referred to as a "CPU 10H1"), a memory 10H2, a solid state drive (hereinafter referred to as an "SSD 10H3"), a communication device 10H4, an input device 10H5, and an output device 10H6.

[0019] The stage 15 includes, for example, a support base 20 and a driving device 22 .

[0020] The CPU 10H1 is an example of a computing device and a control device, and therefore, the CPU 10H1 executes various processes and controls in cooperation with the memory 10H2 and the like based on programs, user operations, and the like.

[0021] The memory 10H2 is an example of a main storage device.

[0022] The SSD10H3 is an example of an auxiliary storage device.

[0023] The communication device 10H4 is a device that transmits and receives data to and from an external device.

[0024] The input device 10H5 is a device for inputting user operations, such as a keyboard, a mouse, or a touch panel.

[0025] The output device 10H6 is a device that outputs the processing results to the user, and is, for example, a display, an output terminal to an external device, a printer, or the like.

[0026] The support base 20 is a mechanism for supporting the badge 21 .

[0027] The driving device 22 includes an actuator, a control device, and mechanical components that drive the support base 20 .

[0028] When the driving device 22 receives an instruction from the PC 10 or the like, it drives the support base 20 together with the can badge 21 based on the instruction.

[0029] Note that each device is not limited to the above hardware configuration. For example, each device may further include an external or internal arithmetic unit, a control unit, a storage unit, an input unit, an output unit, a communication unit, a sensor, an auxiliary unit, and the like.

[0030] [Structure example] 3 is a diagram showing an example of the structure of the stage 15, etc. Hereinafter, the front surface 211 of the can badge 21 will be referred to as the "first surface." On the other hand, the back surface 212 of the can badge 21 will be referred to as the "second surface."

[0031] The first light source device 11, the second light source device 12, and the camera 13 are installed on the front surface 211 side. On the other hand, the X-ray sensor 14 is installed on the back surface 212 side.

[0032] The can badge 21 is placed on the support base 20 with the front surface 211 facing upward (aligned with the Z-axis direction).

[0033] The front surface 211 is a surface on which a design such as characters or letters is formed. The front surface 211 may be coated. On the other hand, the back surface 212 is a surface on which a safety pin or the like is placed without being painted or coated. The back surface 212 is a surface onto which X-rays emitted by the X-ray sensor 14 are irradiated.

[0034] As described above, the first surface is not limited to the front surface 211, but may be any portion on which a design is formed. Furthermore, the second surface is not limited to the back surface 212, but may be any portion suitable for analyzing the material of the can badge 21.

[0035] The positions of the first light source device 11, the second light source device 12, and the camera 13 vary depending on the positions of the first and second surfaces.

[0036] [Example of first light source device 11] The first light source device 11 is a device that serves as a light source that irradiates light (hereinafter referred to as "first light L1") onto the front surface 211. The optical axis of the first light L1 is referred to as "first optical axis AX1."

[0037] The first light source device 11 is installed so that the first light L1 strikes the front surface 211 perpendicularly. In other words, if the front surface 211 is an XY plane, the first light source device 11 is installed so that the first light L1 coincides with the first optical axis AX1 at a position and angle.

[0038] Therefore, it is desirable that the first light source device 11 be positioned directly above the can badge 21 along the Z axis.

[0039] Furthermore, the first light source device 11 is preferably a parallel light source. Specifically, it is preferably a light source that can uniformly apply the first light L1 to the entire can badge 21. For example, the first light source device 11 is a circular light source having a diameter in the circumferential direction of the Z axis.

[0040] The first light source device 11 is a device that emits first light L1 having, for example, a diameter of 25 cm (centimeters), a light source brightness of about 200 lm (lumens), and a color temperature of about 6500 K (Kelvin). However, the brightness, color temperature, and shape of the light source may differ from the above specifications depending on the can badge 21 or its positional relationship with the can badge 21.

[0041] As described above, when the first light L1 hits the front surface 211 at an angle close to perpendicular, that is, when the angle between the first optical axis AX1 and the Z axis is close to 0°, it is possible to reduce the amount of shadows cast when the first light L1 is applied. Furthermore, when the light-emitting surface of the first light source device 11 is close to parallel to the front surface 211, it is possible to reduce the amount of shadows cast when the first light L1 is applied. In other words, it is desirable that the first light source device 11 be a so-called shadowless lamp.

[0042] Therefore, it is desirable that the first light source device 11 has a type, position, angle, or number of light sources that minimizes shadows depending on the shape of the can badge 21, the design formed on the can badge 21, or its positional relationship with the camera 13, etc.

[0043] When an image is taken with camera 13 using such first light source device 11 as a light source, an image with few shadows can be taken.

[0044] [Example of second light source device 12] The second light source device 12 is a device that serves as a light source that irradiates light (hereinafter referred to as "second light L2") onto the front surface 211. The optical axis of the second light L2 is referred to as "second optical axis AX2."

[0045] The second light source device 12 is installed so that the second optical axis AX2 forms a predetermined angle θ (the predetermined angle θ is an angle on the ZX plane, with the vertical axis as the reference) with respect to the front surface 211. For example, the predetermined angle θ is 45°. However, the predetermined angle θ need not be such that the second optical axis AX2 is perpendicular to the front surface 211 (i.e., the predetermined angle θ is 0°) or parallel to the front surface 211 (i.e., the predetermined angle θ is 90°), and may be an angle between 10° and 80°.

[0046] Moreover, the second light source device 12 preferably includes an adjustment mechanism that can change the installation position and the predetermined angle θ based on a user's operation.

[0047] The second light source device 12 is preferably a light source with high directivity, such as a Light Emitting Diode (LED), etc. Therefore, the second light L2 is preferably a spot light that is more concentrated on the front surface 211 than the first light L1.

[0048] The second light source device 12 is a device that emits second light L2 with a light source brightness of, for example, about 200 lm to 600 lm and a color temperature of about 6500 K (Kelvin). However, the brightness, color temperature, and shape of the light source may differ from the above specifications depending on the can badge 21 or its positional relationship with the can badge 21.

[0049] [Camera 13 example] Camera 13 is a device that captures an image of front surface 211. Hereinafter, the optical axis of camera 13 will be referred to as the "third optical axis AX3." Camera 13 captures an image using third light L3 on third optical axis AX3.

[0050] The camera 13 is installed so that the third optical axis AX3 forms a certain angle with respect to the front surface 211 (hereinafter, the vertical axis is used as the reference).

[0051] It is desirable that the angle formed between the third optical axis AX3 and the vertical axis is a predetermined angle θ. Therefore, it is desirable that the second light source device 12 and the camera 13 are installed in a positional relationship in the ZX plane such that both are at the predetermined angle θ. Specifically, as shown in the figure, the second light source device 12 and the camera 13 are installed in positions in the ZX plane that are line-symmetrical with respect to the vertical axis.

[0052] It is desirable that the camera 13 be capable of generating color images. For example, the camera 13 is equipped with an optical sensor with a resolution of about 12 MPix (megapixels).

[0053] With this symmetrical positional relationship, the camera 13 can collect a large amount of the second light L2 reflected by the front surface 211. In other words, with this symmetrical positional relationship, the camera 13 can capture an image of the front surface 211 in a brighter state due to the second light L2.

[0054] FIG. 4 shows a comparison example between the first image and the second image. FIG. 4(A) shows an example of an image captured with the second light L2 irradiated by the second light source device 12, i.e., an example of the second image. When the light is focused on a specific location, as with the second light L2 shown in FIG. 4(A), the area illuminated by the light becomes bright, and scratches on the surface become highlighted. Therefore, by rotating the can badge 21 in this manner and irradiating the second light L2 at various angles and positions, scratches on the can badge 21 can be found.

[0055] FIG. 4B is a diagram showing an example of an image captured in a state where the first light L1 is irradiated by the first light source device 11, that is, an example of a first image.

[0056] 4(A) and 4(B), the second light L2 is locally concentrated, whereas the first light L1 illuminates the entire front surface 211. Using the first image and the second image captured using the first light L1 and the second light L2 in this manner allows for accurate image evaluation.

[0057] [Example of support stand 20] Fig. 5 is a diagram showing an example of the support base 20. Fig. 5 is a diagram showing the lower surface of the stage 15 as viewed from below.

[0058] While the stage 15 is fixed, the support base 20 is configured to rotate. After the can badge 21 is placed on the support base 20, the support base 20 rotates when a user issues a start command on the PC 10. The support base 20 is installed, for example, at the center of the stage 15 in the X-axis direction and the Y-axis direction. The support base 20 is installed so as to pass through the stage 15 and extend in the Z-axis direction through a hole formed in the center of the stage 15.

[0059] Support base 20 is, for example, a hollow cylinder with a cavity formed in the Z-axis direction. Specifically, support base 20 has a shape in which the Z-axis direction is the longitudinal direction and the XY plane is the circumference. However, support base 20 may have a shape other than a cylinder as long as it can support and rotate can badge 21.

[0060] Hereinafter, the top surface of support base 20 will be referred to as the surface that comes into contact with can badge 21. The surface opposite the top surface will be referred to as the bottom surface of support base 20. Therefore, the hollow hole is formed so as to penetrate from the top surface to the bottom surface. Furthermore, the circumference of support base 20 will be referred to as the side surface.

[0061] The X-ray sensor 14 is installed on the bottom side. The X-ray sensor 14 is installed at a position where the emitted X-rays pass through the hollow of the support base 20 and hit the back surface 212.

[0062] In this way, the time required for appraisal can be reduced by configuring the system to simultaneously photograph the front surface 211 and analyze the back surface 212. However, the positions and angles of the first light source device 11, the second light source device 12, the camera 13, and the X-ray sensor 14 do not need to be fixed, and they may be configured to be movable to multiple positions, etc.

[0063] The support base 20 rotates, for example, clockwise around the Z axis as the center of rotation. Hereinafter, the direction in which the support base 20 rotates is referred to as the "rotation direction 30." Rotation in the rotation direction 30 is what is known as Yaw rotation. Specifically, if the "0°" position is the starting point of rotation, the support base 20 completes one rotation by rotating in the rotation direction 30 through "90°," "180°," and "270°" in that order, and then rotating back to the "0°" position.

[0064] The rotation direction 30 may be counterclockwise or may have another axis as the center of rotation.

[0065] The stage 15 includes a mechanism for rotating the support base 20, an actuator, a control device, a power supply device, and the like.

[0066] Specifically, the mechanical parts are, for example, gears, belts, pulleys, etc. In other words, the mechanical parts can be of any type as long as they transmit the force that rotates the support base 20. Furthermore, the stage 15 including the support base 20 is made of, for example, metal, resin, or a combination thereof.

[0067] The actuator is, for example, a motor, etc. The control device and power supply device are devices that control the actuator and supply energy in accordance with the control. However, the support base 20 may be configured to be rotated manually.

[0068] For example, the user sets the rotation speed, rotation amount, etc. in advance on the PC 10. Then, when the user performs an operation on the PC 10 to instruct the start of rotation, the support base 20 rotates. In addition, the first light source device 11, the second light source device 12, the camera 13, etc. operate in conjunction with the rotation.

[0069] [Overall processing example] 6 is a diagram showing an example of the overall processing. For example, the appraisal device 100 executes the overall processing in the following procedure. Note that in the following example, the PC 10 in the appraisal device 100 is the main entity that executes the processing in each procedure, but the entity that executes the processing in each procedure may not be the PC 10 but, for example, an external device, etc.

[0070] In step S01, the appraisal device 100 controls the first light source device 11 to be turned on and the second light source device 12 to be turned off. Then, the appraisal device 100 executes step S02 in an environment where the first light source device 11 is used as the illumination.

[0071] In step S02, the appraisal device 100 captures a first image. Hereinafter, an image captured and generated by the camera 13 in an environment illuminated by the first light source device 11 will be referred to as a "first image." Hereinafter, a state in which the first light source device 11 is turned on and the second light source device 12 is turned off for capturing the first image will be referred to as a "second state."

[0072] In this way, the first image is generated by steps S01 and S02. Note that the number of first images is not limited to one, and step S02 may be performed multiple times to generate multiple first images.

[0073] In step S03, the appraisal device 100 controls the second light source device 12 to be turned on and the first light source device 11 to be turned off. Then, the appraisal device 100 executes step S04 in an environment where the second light source device 12 is used as the illumination.

[0074] In step S04, the appraisal device 100 captures a second image. Hereinafter, an image captured and generated by the camera 13 in an environment illuminated by the second light source device 12 will be referred to as a "second image." Hereinafter, a state in which the first light source device 11 is turned off and the second light source device 12 is turned on for capturing the second image will be referred to as a "first state."

[0075] In step S05, the appraisal device 100 determines whether or not photographing has been completed at all angles. Note that the photographing conditions, such as all angles, i.e., the number of times at which the second image is photographed, are set in advance by the user.

[0076] The example shown in FIG. 5 is an example of setting conditions in which the second image is captured every 90° in one rotation. Therefore, a total of four second images are captured. However, the second images may be captured under other capturing conditions. For example, the second images may be captured every 120°, a total of three, or every 10°, a total of 36, etc.

[0077] In this way, evaluation using second images taken at various angles can reduce the chance of overlooking scratches and the like that are not captured due to the rotation angle. Also, using second images taken at various rotation angles can reduce the chance of overlooking scratches and the like that are hidden by light reflection depending on the rotation angle.

[0078] Next, if it is determined that photography has been completed at all angles (YES in step S05), the verification device 100 proceeds to step S07. On the other hand, if it is determined that photography has not been completed at all angles (NO in step S05), the verification device 100 proceeds to step S06.

[0079] In step S06, the appraisal device 100 rotates the support base 20. Since it is only necessary for the camera 13 to take images at various angles, the second light source device 12 and the camera 13 may be rotated in a circumferential direction with respect to the support base 20 as the center of rotation, rather than the support base 20 being rotated, to change their positions.

[0080] In the example shown in FIG. 5, the appraisal device 100 rotates the support base 20 by 90° for each rotation, that is, step S06.

[0081] In this manner, the appraisal device 100 repeats steps S03 to S06 until photographing is completed at all angles set in advance.

[0082] In step S07, the authentication device 100 performs an X-ray analysis. Specifically, the authentication device 100 performs X-ray fluorescence analysis (XRF). Then, by analyzing the fluorescent X-rays generated by the irradiated X-rays, the authentication device 100 generates an analysis result of the material of the can badge 21.

[0083] If the can badge 21 is genuine, it will be made of a predetermined type of material and have a specific component ratio. Hereinafter, data indicating the type of material and component ratio that make up the genuine can badge 21 will be referred to as "genuine product data." However, the genuine product data may indicate something other than the type of material and component ratio. For example, the genuine product data may be an image of the genuine product. For example, an image that serves as genuine product data may be an image from a sales site that sells genuine products. In other words, the genuine product data may be an image that shows the design of the genuine product.

[0084] If the analysis results indicate that the type of material and the component ratio are the same as those of the genuine product based on the genuine product data, the authentication device 100 determines that the can badge 21 is genuine, i.e., that the can badge 21 is "genuine." On the other hand, if the analysis results indicate that the type of material is not the same as those of the genuine product or that the component ratio is different from those of the genuine product based on the genuine product data, the authentication device 100 determines that the can badge 21 is not genuine, i.e., that the can badge 21 is "fake."

[0085] The genuine product data is obtained, for example, by measuring a sample in advance, or by obtaining reference data of genuine products and storing it in the database 16. It is desirable that the genuine product data be updated periodically.

[0086] In step S08, the appraisal device 100 evaluates the flaw based on the first image and the second image.

[0087] FIG. 7 shows an example of edge processing. For example, the first image or the second image is subjected to processing such as filtering to extract edges. By generating data in which edge components have been extracted through image processing in this manner, scratches and the like can be detected with high accuracy.

[0088] Fig. 8 shows an example of block division. Below, a can badge 21 with the design shown in Fig. 8 will be described as an example.

[0089] In the first image or second image shown in FIG. 8, the area within the image where at least the can badge 21 can be recognized is divided into a plurality of blocks 40. Specifically, each block 40 has the same shape, preferably a square. Furthermore, it is desirable that the blocks 40 be set to approximately 1 mm (millimeter) on a side, regardless of the size of the can badge 21. Therefore, for larger can badges 21, the blocks 40 are fixed to a constant size, resulting in a larger total number of blocks. Setting blocks 40 in this way allows for accurate recognition of scratches.

[0090] 9 is a diagram showing an example of a scratch. For example, the case where the can badge 21 shown in FIG. 8 has a scratch 41 is taken as an example.

[0091] The flaw 41 is detected by, for example, an algorithm such as image recognition, etc. Also, the flaw 41 is detected by, for example, comparing the first image with the second image.

[0092] The first image is taken in a shadowless state, and therefore shows a state in which the scratch 41 is difficult to see (for example, a state as shown in FIG. 8).

[0093] In the second image, the spot light is shining on a part of the image, so the scratch 41 in the shining part of the light is easily visible.

[0094] Therefore, by comparing the first image with the second image, the flaw 41 can be detected. However, the flaw 41 may be detected by a method other than comparing the first image with the second image. For example, if an original image of the design (i.e., data showing the design without flaws) is available, the second image may be compared with the original image.

[0095] FIG. 10 shows an example of a scratch evaluation. For example, the evaluation is performed by counting the number of blocks 40 that have scratches 41. Specifically, in the example shown in FIG. 10, the blocks 40 that are determined to have scratches 41 are colored black. Each scratch 41 is evaluated as "11 blocks + 2 blocks + 10 blocks = a total of 23 blocks."

[0096] The fewer the number of blocks, the less scratches 41 the can badge 21 has, and the more likely it is to be evaluated as a good product.

[0097] In step S09, the authentication device 100 determines whether the can badge 21 is authentic. For example, the authenticity is determined based on the analysis results of step S07, etc. If it is determined to be authentic ("true" in step S09), the authentication device 100 proceeds to step S10. On the other hand, if it is determined to be inauthentic ("false" in step S09), the authentication device 100 ends the entire process. In other words, if the can badge 21 is fake, the authentication device 100 will not perform any further processing, such as storing the can badge 21 in a storage container.

[0098] In step S10, the verification device 100 outputs the verification result. The output format and output destination of the verification result are set in advance.

[0099] The appraisal result is output in a format in which, for example, the evaluation result of the scratch 41 is converted into a score. If other evaluation items, such as the presence or absence of rust, are evaluated in addition to the evaluation result of the scratch 41, the other evaluation items may also be scored and included in the appraisal result. Specifically, the appraisal result is output by converting the evaluation result of the scratch 41 into a score on a 10-point scale ("1" being the lowest rating and "10" being the highest rating). Alternatively, the appraisal result may be a monetary evaluation, etc.

[0100] However, the appraisal result may be output not only as an "overall score" but also as an individual output of the evaluation results of the scratches 41 (for example, outputting each score). Alternatively, the appraisal result is not limited to a quantitative output format such as a score, and may indicate quality using terms such as "good" or "bad." The authenticity determination result may also be output. Other output formats may include a distribution map of scratches 41 as shown in FIG. 10, or a list of the ingredients of the materials contained in the can badge 21 by X-ray.

[0101] The output destination is, for example, the output device 10H6 provided in the PC 10. Specifically, the appraisal result is output on the display in the form of an "overall score" or a determination result of authenticity, etc. However, the output destination may also be, for example, a printer.

[0102] When the badge 21 is authenticated and then stored in a storage container, the authentication result is written, for example, on a sticker or the like on the case of the storage container. In such a case, the authentication result is written by a printer on a sticker that is affixed to the case of the storage container.

[0103] Therefore, the output format and the output destination may be changed or added depending on whether or not the information is to be written in the storage container later.

[0104] As described above, when the appraisal result is output, the user can know the results of the inspection of the quality, etc. of the can badge 21.

[0105] After the authentication result is output, the authenticated badge 21 is preferably stored and sealed in a storage container, the details of which will be described later.

[0106] In step S11, the authentication device 100 seals the container that contains the badge 21.

[0107] 11 is a diagram showing an example of manufacturing a container. For example, step S11 is the process shown in FIG.

[0108] In step S12, the authentication device 100 prints a sticker. That is, the authentication result output in step S10 is printed on a sticker to be affixed to the case of the storage container. However, the authentication result is not limited to a sticker, and may be stored as data on a recording medium, printed on a paper medium such as an authentication certificate and enclosed in the storage container together with the badge 21, or a combination of these. The following explains using a sticker as an example.

[0109] In step S13, the badges 21 are stored in a storage container. The storage may be performed manually or by a storage device such as a robot. Objects other than the badges 21 may also be stored in the storage container.

[0110] In step S14, the container is preferably sealed. For example, the sealing may involve ultrasonic welding of the opening and closing portions of the container. In this way, the sealing process preferably makes it difficult to remove the badges 21 from the container.

[0111] However, the sealing process is not limited to ultrasonic welding. For example, the sealing process may be a seal that allows determination of whether the container has been opened or closed to remove the badge 21 after storage, or a mark indicating sealing. Alternatively, the container may be sealed by a sealing mechanism that breaks the container when it is opened or closed to remove the badge 21 after storage.

[0112] The container may be made of a material other than resin, and the sealing process may be different depending on the material or structure of the container.

[0113] Note that steps S07 and S08 may be executed in an order other than the above in the overall processing. For example, steps S07 and S08 may be executed in an order in which step S07 is executed after step S08. Furthermore, steps S07 and S08 may be executed in parallel.

[0114] [Example of storage container] 12 is a diagram showing an example of a storage container. For example, as shown in the figure, the storage container is a transparent plastic case (hereinafter simply referred to as "case 101"). However, the material, appearance, shape, and size of case 101 are not important.

[0115] First, the can badge 21 to be authenticated is stored in the case 101. It is desirable that the can badge 21 be fixed in the case 101 in case of being carried around or dropped.

[0116] On the case 101, for example, a sticker indicating an explanation item 110 and an appraisal result such as a score 111 is attached.

[0117] The description item 110 indicates, for example, the date and time when the can badge 21 was released, such as "2024.XX.XX," a description of the design depicted on the can badge 21, such as "character name," and information such as the size of the can badge 21, such as "φXX cm." Note that the description item 110 may be set by the user in advance. Therefore, the description item 110 is not limited to the above items and may include other items. It may also include a serial number 114, etc.

[0118] The score 111 is information indicating the appraisal result, such as, for example, a "total score." Note that the output format of the score 111 may be set by the user in advance.

[0119] The serial number 114 is assigned to a can badge 21 that is evaluated as "true," for example. The serial number 114 is a unique value, and different numbers are assigned even to the same type of can badge 21. After storing and sealing, it is desirable to take a photo of the state with the sticker affixed to the case 101 (i.e., an image showing the state as shown in FIG. 12) and upload it to a web page or the like.

[0120] Once uploaded to a web page, the authenticated badge 21 becomes searchable on the web. For example, when searching for the badge 21, a photo of the badge 21 inside and the authentication results, such as a score of 111, are displayed. In this way, publishing the authentication results and the like can highlight the fairness of the service.

[0121] The housing 113 is formed of a material such as resin. For example, the housing 113 has a rectangular parallelepiped shape. The housing 113 is hollow inside, and has a space for storing the can badge 21 and the like. In this way, the housing 113 is large enough to ensure an internal space large enough to store the can badge 21.

[0122] Furthermore, the housing 113 is configured to be separated into two parts, for example. Therefore, after the can badge 21 or the like is stored and the two parts are sealed by a sealing process, the can badge 21 is stored inside the housing 113 and cannot be easily removed. However, the housing 113 may have a mechanism and shape that allows the can badge 21 to be stored inside and prevents the can badge 21 from sliding out after storage. Therefore, the mechanism possessed by the housing 113 may be a door-type opening and closing mechanism or a lid-type mechanism that can be attached and removed. Alternatively, the opening and closing mechanism may be a slide-type mechanism or the like.

[0123] It is desirable to store an oxygen absorber 112 and the like together with the can badge 21 in the case 101. Storing the oxygen absorber 112 together prevents oxidation and the growth of rust or mold, thereby maintaining the high quality of the can badge 21.

[0124] It is desirable that the case 101 be sealed by a sealing process or the like after the authentication and storage of the badges 21 are completed. By sealing the badges 21, it is possible to prevent tampering such as switching badges, by making it impossible to easily remove the badges 21 or by making it possible to detect whether the case 101 has been opened or closed.

[0125] [Function block diagram] 13 is a diagram illustrating an example of a functional configuration of the appraisal device 100. For example, the appraisal device 100 includes a first light source unit 100F1, a second light source unit 100F2, an imaging unit 100F3, a support unit 100F4, an analysis unit 100F5, and an output unit 100F6.

[0126] The first light source section 100F1 performs a first light source step of irradiating the first surface with a first light L1 having a first optical axis AX1. For example, the first light source section 100F1 is realized by a first light source device 11 or the like.

[0127] The second light source unit 100F2 performs a second light source step of emitting second light L2 such that the second optical axis AX2 forms a predetermined angle θ with respect to the vertical axis. For example, the second light source unit 100F2 is realized by the second light source device 12 or the like.

[0128] The photographing unit 100F3 performs a photographing procedure to photograph the first surface. The photographing unit 100F3 also photographs along the third optical axis AX3. For example, the photographing unit 100F3 is realized by the camera 13 or the like.

[0129] The support portion 100F4 contacts the second surface and supports the metal material. The support portion 100F4 also performs a rotation procedure to rotate the metal material around a vertical axis. For example, the support portion 100F4 is realized by a support base 20 or the like.

[0130] The analysis unit 100F5 performs an analysis procedure in which X-rays are applied to the second surface to analyze the quality of the metal material. For example, the analysis unit 100F5 is realized by an X-ray sensor 14 or the like.

[0131] FIG. 14 is a diagram showing an example of the analysis results. An example of the analysis results using X-rays is shown below in an analysis table. The analysis table is composed of, for example, the following items: "Material (type)," "Component ratio (%)," and "+ / -3σ." However, the analysis results are not limited to these items and may include other items.

[0132] "Material (type)" indicates the type of material contained in the can badge 21.

[0133] The "component ratio" indicates the content ratio of the material contained in the can badge 21.

[0134] "+ / -3σ" is a value that indicates a range of approximately 99.7% based on the statistical "3σ," or standard deviation "σ." Therefore, when assessing authenticity, there may be some variation in the content.

[0135] The reference data 200 is an analysis table for a genuine product. In other words, the reference data 200 is an example of genuine product data. Therefore, if the can badge 21 contains the material indicated in the reference data 200 and the component ratio is correct, the can badge 21 is determined to be "genuine."

[0136] First analysis table 201 and second analysis table 202 are examples of analysis results of counterfeit products. Comparing the analysis results of first analysis table 201 and second analysis table 202 with reference data 200, the genuine product contains "molybdenum (Mo)" as indicated by genuine product component 203, whereas first analysis table 201 and second analysis table 202 do not contain "molybdenum."

[0137] In this example, based on the difference in genuine product components 203, the can badge 21 that is the subject of analysis of the first analysis sheet 201 and the second analysis sheet 202, which do not contain "molybdenum", is evaluated as "fake".

[0138] The analysis is not limited to determining whether or not a rare metal such as "molybdenum" is contained, but may also determine authenticity based on various types of materials.

[0139] Furthermore, authenticity may be assessed based on the "component ratio (%)" rather than the presence or absence of material. For example, even if analysis reveals that the material composing the badge 21 is exactly the same as that of the genuine product, the component ratio may differ from that of the genuine product (for example, the amount of "iron (Fe)" may be extremely low or extremely high), and the badge may be assessed as "fake."

[0140] The output unit 100F6 performs an output procedure to output the appraisal result of the metal material based on the first image, the second image, and the analysis result by the analysis unit 100F5. For example, the output unit 100F6 is realized by the output device 10H6 or the like.

[0141] With the above-described functional configuration, the appraisal device 100 can output appraisal results obtained by evaluating the flaw 41 using X-rays, the first image, and the second image. In this way, the appraisal device 100 can output appraisal results obtained by examining the quality of a metal material such as a can badge to a user.

[0142] The container includes a display section 101F1 and a storage section 101F2.

[0143] Display unit 101F1 displays the verification result obtained by verification device 100. For example, display unit 101F1 is realized by a sticker or the like on which the verification result is printed.

[0144] The storage section 101F2 stores metal materials etc. For example, the storage section 101F2 is realized by a housing 113 etc.

[0145] With the storage unit as described above, the metal material appraised by the appraisal device 100 can be stored together with the appraisal results.

[0146] Furthermore, it is desirable that the storage section 101F2 be sealed by a sealing process, since storing the card in a sealed storage container can prevent fraud such as switching.

[0147] [Variations of appraisal] The items to be appraised may include items other than those mentioned above. For example, the shape of the can badge 21 may be included in the items. Specifically, distortions or dents occurring in the can badge 21 may be evaluated.

[0148] Other items to be appraised may include the presence or absence of rust, etc. For example, rust is more likely to occur on the back surface 212 than on the front surface 211. Therefore, the presence or absence of rust on the back surface 212 may be evaluated based on color, etc.

[0149] If the above items are also appraised, the quality of the badge 21 can be determined more accurately.

[0150] [Modification of metal materials] The metal material is not limited to the badge 21. In other words, the metal material may be any object whose main material is metal (but may contain some non-metallic materials) and whose appearance and material are subject to appraisal. Specifically, the metal material may be a coin, jewelry, card (mainly made of metal), etc.

[0151] [Examples of using Artificial Intelligence (AI)] AI may be used in the embodiment. For example, image recognition of the scratch 41 may be achieved by AI or the like. Specifically, the pattern of the scratch 41, etc. is input to the AI ​​in advance as learning data, and a learning model is trained. After learning, an image is input to the trained model as input data, and an evaluation result of the presence or absence of the scratch 41, etc. is output to the AI. In this way, using deep learning AI can further improve the accuracy of image recognition, etc.

[0152] [Contribution to SDGs] Efforts are underway to promote the Sustainable Development Goals (2030 Agenda for Sustainable Development, adopted at the United Nations Summit on September 25, 2015, hereafter referred to as "SDGs"). Specifically, there is a need for technologies that will serve as the foundation for industry and technological innovation.

[0153] This invention will serve as the foundation for technology to assess the quality of metal materials such as metal badges, contributing to the achievement of SDGs Goal 9: Build resilient infrastructure, promote inclusive and sustainable industrialization, and foster innovation.

[0154] [Other variations] The present invention may be realized by a program (including firmware and programs equivalent thereto; hereinafter simply referred to as a "program") that executes processing for realizing the authentication method exemplified above, or processing equivalent to the processing shown above.

[0155] That is, the present invention may be realized by a program written in a programming language or the like so as to issue instructions to a computer and obtain a predetermined result. Note that the program may be configured so that part of the processing is executed by hardware such as an IC (Integrated Circuit).

[0156] The program causes the computer to execute the above-described processes by cooperating with the arithmetic unit, control unit, storage device, etc. That is, the program is loaded into the main storage device, etc., and issues instructions to the arithmetic unit to perform calculations, thereby operating the computer.

[0157] The program may also be provided via a computer-readable recording medium or via a telecommunications line such as a network.

[0158] The present invention may be realized in an information processing system composed of multiple devices. That is, an information processing system using multiple computers may execute the above-described processes in a redundant, parallel, distributed, or combination thereof manner. Therefore, the present invention may be realized in devices and systems other than those with the hardware configurations described above.

[0159] The present invention may also be configured to further include devices other than those described above. That is, each device does not have to be a single device, and each device may be a plurality of devices.

[0160] The present invention is not limited to the above-described embodiment, and various modifications are possible without departing from the spirit of the present invention. Therefore, all technical matters included in the technical ideas described in the claims are subject to the present invention. Furthermore, the above-described embodiment is a preferred example, and various modifications or additions to other devices can be realized based on the contents disclosed in this specification, and these are included in the technical scope of the present invention. [Explanation of symbols]

[0161] 10H1: CPU 10H2: Memory 10H4: Communication equipment 10H5: Input device 10H6: Output device 11:First light source device 12:Second light source device 13: Camera 14: X-ray sensor 15: Stage 16: Database 20: Support stand 21: Can badge 22: Drive unit 30: Rotation direction 40: Block 41: Scar 100: Appraisal device 100F1: 1st light source section 100F2: 2nd light source section 100F3: Photography Department 100F4: Support part 100F5:Analysis Department 100F6: Output section 101: Case 101F1: Display section 101F2: Storage area 110: Description item 111: Score 112: Oxygen absorber 113: Housing 211: Front 212: Back side AX1: 1st optical axis AX2: Second optical axis AX3: Third optical axis L1: First Light L2: Second Light θ: the defined angle

Claims

1. An appraisal device for appraising metal materials, a first light source unit that irradiates a first light having a first optical axis onto a first surface of the metal material; a second light source unit that emits second light at an angle such that a second optical axis forms a predetermined angle with respect to a vertical axis that is perpendicular to the first surface; an imaging unit that is disposed on a third optical axis and that images the first surface; a support part that contacts the second surface of the metal material to support the metal material and rotate the metal material around the vertical axis as a rotation axis; an analysis unit that applies X-rays to the second surface to analyze the material quality of the metal material; an output unit that outputs an appraisal result of the metal material based on a first image of the first surface photographed by the photographing unit when the first light is applied, a second image of the first surface photographed by the photographing unit when the second light is applied, and an analysis result of the analysis unit when the X-ray is applied; An appraisal device comprising:

2. The first optical axis is coincident with the vertical axis, The predetermined angle is between 10° and 80° relative to the normal axis; The second light source unit and the photographing unit are In a vertical plane perpendicular to the first surface, the second optical axis and the third optical axis are arranged at positions that are line-symmetric about the vertical axis. The appraisal device according to claim 1 .

3. In a first state in which the first light source unit is turned off and the second light source unit is turned on, The support portion is Rotating the metal material to change the rotation angle; The imaging unit is capturing a plurality of the second images with different rotation angles; In a second state in which the first light source unit is turned on and the second light source unit is turned off, The imaging unit is Taking the first image The appraisal device according to claim 1 .

4. The metal material is a can badge, The analysis unit Identifying the material contained in the can badge; The output unit Outputting the authenticity of the can badge based on the type of material contained in the can badge or the component ratio The appraisal device according to claim 1 .

5. The output unit Dividing the first image or the second image into a plurality of blocks, counting the number of blocks that have scratches, and outputting the appraisal result including the result of evaluating the number of blocks. The appraisal device according to claim 1 .

6. a support portion that contacts the second surface of the metal material and supports the metal material; An appraisal method performed by an appraisal device that appraises the metal material, a first light source step of irradiating a first light having a first optical axis onto a first surface of the metal material; a second light source step of applying second light at an angle such that a second optical axis forms a predetermined angle with respect to a vertical axis that is perpendicular to the first surface; an imaging step of imaging the first surface via a third optical axis; a rotating step of rotating the support portion about the vertical axis; an analysis step of analyzing the material quality of the metal material by applying X-rays to the second surface; an output step of outputting an appraisal result of the metal material based on a first image of the first surface photographed in the photographing step by applying the first light, a second image of the first surface photographed in the photographing step by applying the second light, and an analysis result of the analysis step by applying the X-ray; Appraisal methods including.

7. A program for causing a computer to execute the appraisal method according to claim 6.

8. a first light source unit that irradiates a first light having a first optical axis onto a first surface of the metal material; a second light source unit that emits second light at an angle such that a second optical axis forms a predetermined angle with respect to a vertical axis that is perpendicular to the first surface; an imaging unit that is disposed on a third optical axis and that images the first surface; a support part that contacts the second surface of the metal material to support the metal material and rotate the metal material around the vertical axis as a rotation axis; an analysis unit that applies X-rays to the second surface to analyze the material quality of the metal material; an output unit that outputs an appraisal result of the metal material based on a first image of the first surface photographed by the photographing unit when the first light is applied, a second image of the first surface photographed by the photographing unit when the second light is applied, and an analysis result of the analysis unit when the X-ray is applied; A storage container showing the appraisal result output by an appraisal device comprising: a storage section for storing the metal material; a display unit that displays the appraisal result; A storage container comprising:

9. The storage section storing the metal material is sealed.

9. The container of claim 8.

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