JP2009123130A - Color bar code sheet, color bar code reader, color bar code read terminal, manufacturing system, color bar code read program, and color bar code read method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a color bar code read terminal for reading numerical codes from a color bar code displayed only by an electromagnetic wave in a non-visual light area being radiated. <P>SOLUTION: The color bar code read terminal for reading the numerical codes from a color bar code sheet formed by the color bar code being pasted or transferred to a sheet is provided with: an imaging part 3 for picking up an image of the color bar code sheet which emits color of a visible light area as a color bar code image by the electromagnetic wave being radiated by a radiation part 2 to the color bar code sheet which is formed by the color bar code having paint mixing materials emitting light in the visible light area being pasted or transferred to the sheet by the electromagnetic wave in a non-visible light area being radiated; a correction part 4 for correcting a color bar code imaged by the imaging part 3; and a numerical code read part 5 for reading the numerical code from the color bar code image corrected by the correction part 4. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a color barcode sheet formed by applying or transferring a color barcode to a sheet, a color barcode reading device that reads information from the color barcode sheet, a color barcode reading terminal, and a color barcode reading program The present invention relates to a color barcode reading method, and a manufacturing system that centrally manages information relating to a color barcode sheet.

  Conventionally, management information such as a lot number, a production number, and a production record of a product is converted into a numerical code, and the numerical code is attached to the product as a barcode. In addition, the membership number is converted into a numeric code, and the numeric code is attached to the membership card as a barcode.

  In recent years, in order to improve the information recording density with respect to the conventional black and white bar code, a color bar code to which a numerical value is assigned for each color type or color combination is used.

In addition, as a related art related to the present invention, a device such as a general mobile phone with a digital camera can be used as a barcode reader, and the area of the printed portion of the barcode can be suppressed and the information recording density can be improved. A color barcode and its barcode reader are disclosed (for example, Patent Document 1). In addition, in order to eliminate the shortage of information of conventional barcodes, barcode modules colored with cyan and magenta colors are partitioned by triggers, which are read with light conversion elements covered with cyan and magenta filters. A color barcode and a reading method are disclosed (for example, Patent Document 2). Further, a method for efficiently recording and reproducing a plurality of types of multimedia information using a color barcode capable of recording a large amount of information is disclosed (for example, Patent Document 3). In addition, in order to prevent crimes caused by the leakage of personal information, it is easy to make the personal information such as address and address necessary for work such as delivery, postal mail, post posting with specific posting destination invisible. Discloses a system that cannot be referred to by a third party (for example, Patent Document 4). In addition, a technique applicable to creation of an array code in a color barcode is also disclosed (for example, Patent Document 5).
JP 2004-355122 A JP 2000-293621 A JP 2000-67191 A JP 2005-053206 A JP-A-8-210808 (FIG. 2)

  However, since the conventional color barcode can be recognized by visible light, it can be easily viewed by a third party. Therefore, there is always a risk of forgery of credit cards, various certificates, membership cards, vouchers, etc., and there is a problem in terms of protection and leakage of information.

  The present invention has been made to solve the above-described problems, and a color barcode sheet that reduces the risk of counterfeiting, a color barcode reading device that reads the color barcode sheet, a color barcode reading terminal, In addition to providing a color barcode reading program and a color barcode reading method, a manufacturing system is provided that prevents counterfeiting at the product manufacturing stage by centrally managing information.

  In order to solve the above-described problems, the present invention provides a color barcode sheet formed by applying or transferring a color barcode to a sheet, and the visible light is irradiated by electromagnetic waves in a non-visible light region. It is formed by applying or transferring a color barcode made of a paint mixed with a substance that emits the color of the region to the sheet.

  In the color barcode sheet described above, the present invention is characterized in that the substance is a substance containing a rare earth element.

  According to the present invention, in the color barcode sheet described above, the color barcode sheet is used as a signature field.

  According to the present invention, in the color barcode sheet described above, a mark is applied or transferred at a predetermined position of the color barcode sheet.

  According to the present invention, in the color barcode sheet described above, the mark is a reference for correcting an image obtained by imaging the color barcode sheet.

  In the color barcode sheet described above, the present invention is characterized in that the paint is applied or transferred over the entire area of the color barcode sheet.

  In order to solve the above-described problems, the present invention provides a color barcode reading apparatus that reads a numeric code from a color barcode sheet formed by applying or transferring a color barcode to a sheet, and includes a non-visible light region. For a color barcode sheet formed by applying or transferring to the sheet a color barcode made of a paint mixed with a substance that emits light in the visible light region by being irradiated with electromagnetic waves, An irradiation unit that irradiates the electromagnetic wave, an imaging unit that images the color barcode sheet that emits a color in a visible light region as a color barcode image by being irradiated by the irradiation unit, and an imaging unit A correction unit that corrects the captured color barcode image, and a number for reading the numerical code from the color barcode image corrected by the correction unit In which and a code reading unit.

  According to the present invention, in the color barcode reader described above, when the mark is applied or transferred to a predetermined position of the color barcode sheet, the correction unit performs correction based on the mark. It is a feature.

  According to the present invention, in the color barcode reading apparatus described above, the correction unit performs at least one of rotation correction and enlargement / reduction correction on the color barcode image. Bar code reader.

  According to the present invention, in the color barcode reading apparatus described above, a transmission unit that transmits the numerical code read by the numerical code reading unit, and a determination result of the authenticity of the numerical code are received. And a receiving unit.

  According to the present invention, in the color barcode reader described above, the substance is a substance containing a rare earth element.

  In order to solve the above-described problems, the present invention provides a color barcode reading terminal that reads a numeric code from a color barcode sheet formed by applying or transferring a color barcode to a sheet, and includes a non-visible light region. For a color barcode sheet formed by applying or transferring to the sheet a color barcode made of a paint mixed with a substance that emits light in the visible light region by being irradiated with electromagnetic waves, An imaging unit that images the color barcode sheet that emits a color in the visible light region as a result of being irradiated with the electromagnetic wave as a color barcode image, and a correction unit that corrects the color barcode image captured by the imaging unit And a numerical code reading unit that reads the numerical code from the color barcode image corrected by the correction unit.

  According to the present invention, in the color barcode reading terminal described above, when the mark is applied or transferred to a predetermined position of the color barcode sheet, the correction unit corrects based on the mark. It is a feature.

  Further, according to the present invention, in the color barcode reading terminal described above, the correction unit performs at least one of rotation correction and enlargement / reduction correction on the color barcode image. It is.

  According to the present invention, in the color barcode reading terminal described above, a transmitting unit that transmits the numerical code read by the numerical code reading unit and a determination result of the authenticity of the numerical code are received. And a receiving unit.

  According to the present invention, in the color barcode reading terminal described above, the color barcode reading terminal is a mobile phone with a camera function.

  According to the present invention, in the color barcode reading terminal described above, the substance is a substance containing a rare earth element.

  In order to solve the above-described problem, the present invention provides a color barcode sheet attached to an object and a manufacturing system for manufacturing the object, a management information acquisition unit that acquires management information about the object, A code based on the management information acquired by the management information acquisition unit is generated, the management unit that manages the management information and the code in association with each other, the code managed by the management unit is acquired, and the code An object manufacturing unit that manufactures the object associated with the code, and a code managed by the management unit is obtained, and a color barcode based on the code is applied or transferred to the sheet to obtain a color barcode sheet And a color barcode sheet manufacturing section to be manufactured.

  Further, the present invention is the above-described manufacturing system, wherein the color barcode sheet manufacturing unit uses a paint mixed with a substance that emits a color in the visible light region when irradiated with an electromagnetic wave in a non-visible light region. A color barcode sheet is manufactured by applying or transferring a color barcode as a material to the sheet.

  In the manufacturing system according to the present invention, the management unit transmits information on manufacturing permission of the target to the target manufacturing unit, and the target manufacturing unit transmits information on the manufacturing permission. The above-mentioned object is manufactured when it is received.

  In the manufacturing system described above, the present invention is characterized in that the substance is a substance containing a rare earth element.

  In order to solve the above-described problem, the present invention is a manufacturing system for manufacturing a color barcode sheet attached to an object and the object, and a management information acquisition unit that acquires management information about the object; A management unit that generates a code based on the management information acquired by the management information acquisition unit and a color barcode based on the code, and manages the management information, the code, and the color barcode in association with each other; Acquiring a code managed by the management unit, manufacturing an object manufacturing unit associated with the code, and obtaining a color barcode managed by the management unit; A color bar code sheet manufacturing unit that manufactures a color bar code sheet by applying or transferring the code to the sheet.

  In order to solve the above-described problems, the present invention provides a color barcode reading program that causes a computer to read a numerical code from a color barcode sheet formed by applying or transferring a color barcode to a sheet. A color bar formed by applying or transferring a color barcode made of a paint mixed with a substance emitting light in the visible light region when irradiated with electromagnetic waves in the invisible light region to the sheet. A color barcode image acquisition step for acquiring, as a color barcode image, the color barcode sheet that emits a color in the visible light region by irradiating the electromagnetic wave to the code sheet, and the color barcode image acquisition step. A correction step of correcting the color barcode image obtained in step From the corrected color bar code image is intended to execute a numerical code reading step of reading the numeric code to the computer.

  According to the present invention, in the color barcode reading program described above, when the mark is applied or transferred to a predetermined position of the color barcode sheet, the correction step corrects based on the mark. It is a feature.

  In the color barcode reading program described above, the present invention is characterized in that the correction step performs at least one of rotation correction and enlargement / reduction correction on the color barcode image. It is.

  According to the present invention, in the above-described color barcode reading program, a transmission step of transmitting the numerical code read in the numerical code reading step and a result of whether the numerical code is true or false are received. And a reception step.

  According to the present invention, in the color barcode reading program described above, the color barcode reading program is executed by a computer inside a mobile phone.

  In the color barcode reading program described above, the present invention is characterized in that the substance is a substance containing a rare earth element.

  In order to solve the above-described problems, the present invention provides a color barcode reading method for reading a numeric code from a color barcode sheet formed by applying or transferring a color barcode to a sheet, and the non-visible light region. For a color barcode sheet formed by applying or transferring to the sheet a color barcode made of a paint mixed with a substance that emits light in the visible light region by being irradiated with electromagnetic waves, In the irradiation step of irradiating the electromagnetic wave, in the imaging step of imaging the color barcode sheet that emits the color of the visible light region as a color barcode image by being irradiated in the irradiation step, and in the imaging step A correction step for correcting the captured color barcode image, and a color barcode corrected in the correction step. And it executes a numerical code reading step of reading the numeric code from the image.

  Further, the present invention provides the color barcode reading method described above, wherein when the mark is applied or transferred to a predetermined position of the color barcode sheet, the correction is performed based on the mark. It is a feature.

  In the color barcode reading method described above, the present invention is characterized in that the correction step performs at least one of rotation correction and enlargement / reduction correction on the color barcode image. It is.

  In the color barcode reading method described above, the present invention further includes a transmission step of transmitting the numerical code read in the numerical code reading step, and a determination result of the authenticity of the numerical code. And a receiving step.

  In the color barcode reading method described above, the present invention is characterized in that the substance is a substance containing a rare earth element.

  According to the present invention, leakage of information can be reduced, and a numerical code can be read from a sheet that functions as a color barcode by irradiating electromagnetic waves in a non-visible light region.

(Embodiment 1)
Hereinafter, a color barcode sheet and a color barcode reading terminal according to the present invention will be described with reference to the drawings. First, a functional block of the color barcode reading terminal is shown in FIG. The color barcode sheet in the first embodiment will be described as being used mainly as a signature field (signature tape) attached to various cards such as a credit card and a membership card.

  In the first embodiment, the color barcode reading terminal is described as a mobile phone with a camera function. However, any device can be used as long as it can capture an image and can process the captured image. It may be a thing.

  First, the irradiation unit in the first embodiment will be described prior to the description of the color barcode reading terminal. The irradiation unit 2 irradiates the signature field (color barcode sheet) of the card with electromagnetic waves in the invisible light region. The signature field is colorless under the visible light region and cannot be visually recognized, but is displayed as a color barcode in the visible light region when irradiated with a predetermined electromagnetic wave in the non-visible light region.

  Next, the color barcode reading terminal will be described. The color barcode reading terminal 1 includes an imaging unit 3, a correction unit 4, a numerical code reading unit 5, and a transmission / reception unit 6.

The imaging unit 3 captures a color barcode sheet that emits a color in the visible light region as a color barcode image by irradiating the irradiation unit 2 with an electromagnetic wave in the invisible light region.

  The correction unit 4 corrects the color barcode image captured by the imaging unit 3.

  The numerical code reading unit 5 reads the numerical code from the color barcode image corrected by the correction unit 4.

  The transmission / reception unit 6 transmits the numerical code read by the numerical code reading unit 5 to the external numerical code management unit 10 and receives the determination result of the numerical code authenticity performed by the numerical code management unit 10. .

  Next, an outline of the processing contents of the first embodiment will be described with reference to FIG.

  By irradiating a predetermined signature electromagnetic wave in the invisible light region on the signature column of the card, a color bar code that is not displayed only with visible light is displayed on the signature column. The color bar code displayed in the signature field is imaged and acquired as image data. The captured image data (color barcode image) is subjected to rotation correction and enlargement / reduction correction to become a color barcode image having a predefined image size and position. Thereafter, the numerical code is read from the color bar code image whose image has been corrected. Finally, the numerical code management unit 10 determines whether the numerical code is true or false.

  Next, the color barcode sheet will be described with reference to FIG.

  The color barcode sheet in the first embodiment is formed by applying or transferring a paint mixed with a rare earth element (lanthanoid element) to the sheet. The color barcode sheet is used as a signature field for a credit card or the like, and a signature is made on the surface thereof. The paint mixed with the rare earth element is visible only in the color of the base paint under visible light, but based on the type of rare earth element when irradiated with a predetermined electromagnetic wave in the invisible light region. Emits color.

  In addition, the color barcode sheet in the first embodiment is recognized as a color barcode having four different information in three different colors (red, green, brown) and a portion that does not emit light when irradiated with a predetermined electromagnetic wave. Is done. In addition, as rare earth elements used for emitting each color, for example, samarium (Sm) is used as red, praseodymium (Pr) is used as green, and holmium (Ho) is used as brown.

  In addition to the substances listed, any substance that emits light in the visible light region when irradiated with electromagnetic waves in the non-visible light region may be used, or these materials may be mixed and used. As the color type, any color may be used as long as the image picked up by the image pickup unit 3 can be distinguished to the extent that the numerical code reading unit 5 can numerically code the image. In the first embodiment, three different colors (four colors including a portion where no color is generated) are used. However, the number of colors is not limited.

  In addition, one color bar (unit constituting a color barcode) is associated with a numeric code such as “3” for red, “1” for green, “1” for brown, and “0” for no light emission (black). Can be expressed in quaternary numbers, and can also be expressed in hexadecimal numbers by making four color bars into one set.

  Further, reference lines (marks) serving as a reference for performing correction by the correction unit 4 are provided at the upper end portion and the lower end portion in the color barcode sheet. As for the reference line, for example, when a predetermined electromagnetic wave in an invisible light region is irradiated, the reference line at the upper end emits red light, and the reference line at the lower end emits green light. By providing the reference line in this manner, it is possible to make an up / down determination based on the color of the reference line even when the color barcode sheet is imaged upside down.

  Further, the density of the information amount can be further increased by dividing the color barcode into a lattice shape (lower diagram in FIG. 3) instead of a strip shape (upper diagram in FIG. 3). If it is a signature field, the signature is written with a pen or the like on the surface of the signature field, so there is a high probability that the lattice will be covered by the written signature and the color bar will not be readable. In the case where nothing is covered on the surface, a lattice-shaped color barcode is an effective means. It should be noted that a reference line can also be provided for a color barcode having a lattice shape in the same manner as described above. Furthermore, the position of the color bar with respect to the vertical direction is also clarified by making the reference line at the lower end portion a broken line that matches the lattice spacing in the horizontal direction. Furthermore, when the reference line is a solid line, the color barcode has a band-like structure, and when the reference line is a broken line, the structure of the color barcode is recognized by defining it as a lattice-like structure.

  In order to increase the confidentiality of the color barcode, it is necessary to print the entire color of the sheet without any gap between the color barcode and the sheet. Since the paint itself has color and gloss, for example, even if the base sheet is white and the paint is white, it is visually recognized that something is printed due to a slight difference in color and gloss. Therefore, in order to eliminate the uncomfortable feeling due to the color difference between the basic color of the base and the paint, the paint mixed with the rare earth element needs to be applied or transferred to the entire sheet.

  Next, the irradiation part 2 in Embodiment 1 is demonstrated in detail based on FIG. The irradiation unit 2 is provided with a mechanism for fixing the color barcode reading terminal 1, and when the color barcode reading terminal 1 is fixed, the inside of the irradiation unit 2 becomes a dark room.

  The irradiation unit 2 includes a card detection sensor 21, an electromagnetic wave irradiation unit 22, a card rail 23, and an imaging window 24.

  The card detection sensor 21 detects whether or not the card having the above-described signature section is set at a predetermined position along the card rail 23. The card detection sensor 21 also functions as a switch for the electromagnetic wave irradiation unit 22.

  The electromagnetic wave irradiation unit 22 irradiates the signature column with electromagnetic waves such as ultraviolet rays and special wavelengths triggered by the card detection sensor 21 detecting the card. The electromagnetic wave to be irradiated needs to emit light from a rare earth element employed as a color barcode. When the electromagnetic wave irradiation unit 22 irradiates the electromagnetic wave, the signature column emits light as a color barcode.

  The imaging window 24 is for enabling imaging by the color barcode reading terminal 1, and the color barcode reading terminal 1 images the color barcode emitted in the signature column via the imaging window 24.

  Next, processing in the present embodiment will be described with reference to the flowchart of FIG.

  First, the irradiation unit 2 detects that the card has been set at a predetermined position by the card detection sensor 21, and the electromagnetic wave irradiation unit 22 irradiates the electromagnetic wave, whereby the color bar attached to the signature column of the card. The code is caused to emit light (step S1).

  After the color barcode reading terminal 1 is set at a predetermined position of the irradiation unit 2, the imaging unit 3 converts the color barcode emitted by the irradiation unit 2 into a color barcode image (in the XY coordinate system, in the RGB color space). An image is captured as a certain full-color image (step S2).

  Here, the imaging unit 3 may cut out the vicinity of the color barcode from the color barcode image in order to reduce the subsequent processing load. The color barcode image is cut out by designating coordinates defined in advance for the color barcode image (cutout coordinates in an orthogonal coordinate system based on the X axis and the Y axis). For example, when the color barcode is a rectangle, the coordinate value of each vertex of the rectangle is defined in advance, and the sub-image within the coordinate value is set as a cut-out target image. In the case of cutting out, it may be cut out larger than the color barcode portion in consideration of the state of the imaging unit 3, the resolution, and the like. In addition, when cutting out, it is also necessary to take measures against images taken with the card upside down. For example, if the card is not upside down, the color barcode is present, and if the card is upside down, the luminance value of the coordinate value determined to be absent is determined. If the luminance value is outside the predetermined range, the card is determined. It is necessary to take measures such as assuming that the image is taken upside down.

  Next, the correction unit 4 absorbs differences due to individual differences in the imaging unit 3 (for example, differences in lenses used by the imaging unit 3 and imaging resolution) with respect to the color barcode image captured by the imaging unit 3. In addition, rotation correction and enlargement / reduction correction are performed in order to absorb differences in the imaging state (for example, the above-described upside down state or the state in which the color barcode reading terminal 1 is inclined with respect to the card).

  Hereinafter, the correction in the correction unit 4 will be described with reference to FIG.

  The correcting unit 4 first determines whether or not the color barcode image is an image captured upside down based on the two reference lines of the color barcode. Here, when the green reference line is positioned above the color barcode image from the red reference line, the correction unit 4 regards it as an image captured upside down and rotates the color barcode image by 180 degrees ( Step S3).

  Next, the correction unit 4 detects the coordinates of the left and right edges of the reference line (red or green) of the color barcode. Here, the coordinate of the left edge in the color barcode image is L1, and the coordinate of the right edge is R1. Next, the angle of the color barcode with respect to the reference axis (X axis) is detected from L1 and R1, and rotation correction for the detected angle is performed (step S4). Note that the actual image may be rotated, but only the coordinate correction parameters may be extracted.

  The correcting unit 4 further calculates the length (pixel unit) from L1 to R1 after the rotation correction, and calculates the ratio with the reference length (pixel unit) defined in advance, thereby performing the enlargement / reduction correction (step S1). S5). The actual image may be enlarged or reduced, but only the coordinate correction parameters may be extracted.

  Note that, even in a color barcode without a reference line, for example, the color bars at the left and right ends of a color barcode image may be regarded as the reference line (the upside down determination is made upside down as in the above-described image clipping process). If not, the brightness value of the coordinate value determined to have a color bar code is determined, and if the brightness value is outside the predetermined range, processing such as assuming that the image is taken upside down is performed. Further, the correction unit 4 may define a pattern for each individual image capturing unit 3 and perform correction using correction calculation parameters (coefficients) corresponding to the pattern.

  Next, the numerical code reading unit 5 digitizes the corrected image corrected by the correcting unit 4 based on the emitted color. Hereinafter, processing by the numerical code reading unit 5 will be described.

  By the correction process by the correction unit 4 described above, the position of the reference line at the lower end of the color barcode becomes clear. Here, the numerical code reading unit 5 determines whether the reference line is a solid line or a broken line by inspecting the horizontal direction (X-axis direction) of the lower end portion of the color bar code, and the color bar code for the signature field (a strip-shaped color bar) Code) or a grid-like color barcode (see FIG. 3) (step S6). In the first embodiment, the determination is based on the solid line or the broken line, but it is only necessary to be able to determine whether the color code is a strip color bar code or a lattice color bar code.

  The numerical code reading unit 5 acquires the luminance value of each component of RGB (R: red, G: green, B: blue) for the pixel of the color barcode image based on the determination result of step S6, and acquires each acquired Whether or not the luminance value of the component is within the range of luminance values defined in advance for each color used in the color bar (the luminance value range in which the color bar is determined to be red, determined to be green) The range of luminance values and the range of luminance values that are determined to be brown are defined for each RGB component, and those that do not match these ranges are black). And read as a numerical code (step S7).

  Here, since the image corrected by the correction unit 4 is associated with the color bar and the coordinate value, the numerical code reading unit 5 uses the RGB component of the predefined coordinate value (reading coordinate value). What is necessary is just to acquire a luminance value. The numerical code reading unit 5 may set the range of the luminance value in consideration of a bias component generated by the position and balance of the electromagnetic wave irradiation unit 22 when performing numerical encoding. For example, when the electromagnetic wave irradiation unit 22 is located at the center of the color barcode, the luminance value increases near the center of the color barcode image, and the luminance value decreases toward the left and right ends. Therefore, the numerical code reading unit 5 considers this point. Thus, a range of luminance values may be set.

  Further, when the color barcode sheet is a signature column, there is a portion where a signature is written on the surface of the color barcode, and there may be a case where a reading error or a misidentification occurs at that portion. As a countermeasure in this case, as shown in FIG. 7, the numerical code reading unit 5 reads a plurality of X-axis direction lines (for example, broken line in FIG. 7) having different Y-axis component values, and a portion with the highest received light intensity. May be adopted as regular data and numerically encoded.

  Further, the numerical code reading unit 5 may average the luminance values of pixels adjacent to the above-described reading coordinate value, and may perform numerical coding by determining whether or not the average value is within the above-described luminance value range.

  The transmission / reception unit 6 transmits the numeric code read by the color barcode reading terminal 1 to the numeric code management unit 10 that manages the numeric code (step S8), and receives the authenticity determination result by the numeric code management unit 10 (step S9). ).

  In the first embodiment, the color barcode reading terminal 1 and the irradiation unit 2 have been described as different device configurations. However, each function of the color barcode reading terminal 1 (imaging unit 3, correction unit 4, numerical code reading unit) 5 and the transmitting / receiving unit 6) and the irradiating unit 2 may be provided in the same apparatus to be a color barcode reading apparatus.

  In addition, the color barcode reading terminal 1 in Embodiment 1 images a color barcode sheet that emits a color in the visible light region by irradiating the irradiation unit 2 with a predetermined electromagnetic wave in the invisible light region. The present invention can also be applied to a color barcode that is visible even under visible light.

  As described above, the color barcode sheet of Embodiment 1 can be used to conceal the color barcode itself by using a color bar coat made of a material that is not visible under visible light. Therefore, since a third party cannot even recognize that a color barcode is attached, information leakage can be prevented.

  In addition, since the color barcode sheet is visible as a color bar coat only after the electromagnetic wave in the invisible light region is irradiated, a third party cannot easily obtain a numeric code from the color barcode, and information leakage Can be prevented.

  Further, as described above, whether or not the card is legitimate or forged can be determined based on whether or not the numeric code can be read by the color barcode reading terminal 1. Further, the authenticity of the card can be determined by making an inquiry to the numerical code management unit 10 that manages the numerical code read by the color barcode reading terminal 1.

  The transmission unit and the reception unit correspond to the transmission / reception unit 6 in the first embodiment.

(Embodiment 2)
In the second embodiment, management numbers such as lot numbers and manufacturing numbers, recording information such as manufacturing records, membership numbers (hereinafter referred to as management information), and numerical codes used in color barcodes are managed. Describes a specialized manufacturing system. For example, when a manufacturer (hereinafter referred to as a color barcode user) outsources the manufacture of its own brand product to another manufacturer, or prints a color barcode to another printer other than the color barcode user. When ordering, etc., management information and numerical codes need to be centrally managed by a color barcode user from the viewpoint of security. Embodiment 2 shows a manufacturing system in such a case.

  FIG. 8 shows a manufacturing system according to the second embodiment. The manufacturing system 100 includes a numerical code management unit 10, a product manufacturing unit 20, and a color barcode sheet manufacturing unit 30. Note that data is transmitted / received and controlled via a network.

  In the second embodiment, as an example, the numerical code management unit 10 is used by a color barcode user, and the product manufacturing unit 20 and the color barcode sheet manufacturing unit 30 are manufacturers other than the color barcode users. It is assumed that the printer is used, but the mode is not limited. As another aspect, for example, a color barcode user may use the numerical code management unit 10 and the color barcode sheet manufacturing unit 30, and a manufacturer may use the product manufacturing unit 20. Alternatively, the management department in the color barcode user may use the numerical code management unit 10, and the manufacturing department in the color barcode user may use the product manufacturing unit 20 and the color barcode sheet manufacturing unit 30.

  The numerical code management unit 10 acquires management information of a product (target object), generates a numerical code based on the management information, and manages the management information and the numerical code in association with each other. Further, the authenticity determination may be performed on the numerical code read by the color barcode reading terminal 1 (or color barcode reading apparatus) in the first embodiment based on the management information corresponding to the numerical code.

  The product manufacturing unit 20 acquires the numerical code managed by the numerical code management unit 10 and manufactures a product associated with the numerical code.

  The color barcode sheet manufacturing unit 30 acquires the numerical code managed by the numerical code management unit 10, and manufactures the color barcode sheet by applying or transferring the color barcode based on the numerical code to the sheet.

  The color barcode sheet manufacturing unit 30 may manufacture a color barcode sheet that can be visually recognized under visible light, or a mixture of the rare earth element and the paint shown in the first embodiment. You may manufacture the color barcode sheet | seat which light-emits only when predetermined electromagnetic waves of invisible light are irradiated using material.

  Next, processing of the manufacturing system 100 will be described with reference to the flowchart of FIG.

  The numerical code management unit 10 acquires management information from the outside (for example, a system above the manufacturing system 100 or manual input by a user) (step S100), and generates a numerical code based on the management information (step S101). . Thereafter, the numerical code management unit 10 manages the management information and the numerical code in association with each other (step S102).

  The product manufacturing unit 20 acquires the numerical code managed by the numerical code management unit 10 and manufactures a product associated with the acquired numerical code (step S103). Here, the numerical code management unit 10 transmits an acquisition permission in response to a numerical code acquisition request received from the product manufacturing unit 20, and the product manufacturing unit 20 can perform product manufacturing only after receiving the acquisition permission. May be added.

  The color barcode sheet manufacturing unit 30 acquires the numerical code managed by the numerical code management unit 10, and manufactures the color barcode sheet by applying or transferring the color barcode based on the numerical code to the sheet (step). S104).

  In addition, although the manufacturing system 100 in Embodiment 2 performs step S104 after performing step S103, you may perform step S103 after performing step S104.

  As described above, in the manufacturing system 100, only the numerical code management unit 10 holds the relationship between the management information and the numerical code. Further, since the numerical code management unit 10 centrally manages the numerical codes, there is no duplication of numerical codes even when there are a plurality of manufacturers or a plurality of printers.

  Here, in the relationship between the numerical code management unit 10 and the color barcode sheet manufacturing unit 30, an aspect different from the above is shown. The numerical code management unit 10 generates data relating to the color barcode (for example, image data of the color barcode, numerical data of the array and color components used in the color barcode) based on the numerical data, and data relating to the color barcode. Is transmitted to the color barcode sheet manufacturing unit 30. The color barcode sheet manufacturing unit 30 applies or transfers the paint to the sheet based on the transmitted data relating to the color barcode. By doing in this way, since it is not necessary to disclose numerical data, the confidentiality of information is further enhanced.

  In the case where the color barcode user and the product manufacturer (or color barcode printer) are different according to the second embodiment, fraudulent imitation (for example, fraudulent acts such as an overseas contract manufacturer) by preventing information leakage ) Can be prevented.

  The management information acquisition unit and the management unit correspond to the numerical code management unit 10 in the second embodiment, and the object manufacturing unit corresponds to the product manufacturing unit 20 in the second embodiment.

  In the embodiment, the color barcode reading program is described as being installed in advance in the above-described color barcode reading terminal (or color barcode reading apparatus), but the color barcode reading program according to the present invention is stored in the memory. The thing memorize | stored in the medium is also included. Here, the storage medium is removable from the display device such as magnetic tape, magnetic disk (floppy disk, hard disk drive, etc.), optical disk (CD-ROM, DVD disk, etc.), magneto-optical disk (MO, etc.), flash memory, etc. Any medium that can be read and executed by a computer in the above-described color barcode reading terminal (or color barcode reading apparatus), such as a simple medium or a medium that can be transmitted via a network.

3 is a diagram illustrating an example of functional blocks of a color barcode reading terminal according to Embodiment 1. FIG. 5 is a diagram showing an outline of processing in Embodiment 1. FIG. 4 is a diagram showing details of a color barcode in Embodiment 1. FIG. 3 is a diagram illustrating details of an imaging unit according to Embodiment 1. FIG. 3 is a flowchart illustrating processing contents in the first embodiment. 5 is a diagram illustrating details of correction processing in Embodiment 1. FIG. 3 is a diagram showing a reading line of a numerical code reading unit in Embodiment 1. FIG. 6 is a diagram illustrating an example of functional blocks of a manufacturing system in Embodiment 2. FIG. 10 is a flowchart showing processing contents in the second embodiment.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Color barcode reading terminal, 2 Irradiation part, 3 Imaging part, 4 correction | amendment part, 5 Numerical code reading part, 6 Transmission / reception part, 10 Numerical code management part, 20 Product manufacturing part, 21 Card detection sensor, 22 Electromagnetic wave irradiation part, 23 card rail, 24 imaging window, 30 color barcode sheet manufacturing department, 100 manufacturing system.

Claims (32)

A color barcode sheet formed by applying or transferring a color barcode to the sheet,
A color barcode formed by applying or transferring a color barcode made of a paint mixed with a substance that emits light in the visible light region when irradiated with an electromagnetic wave in a non-visible light region to the sheet. Sheet. The color barcode sheet according to claim 1,
The color barcode sheet, wherein the substance is a substance containing a rare earth element. In the color barcode sheet according to claim 1 or 2,
The color barcode sheet is used as a signature field. In the color barcode sheet according to any one of claims 1 to 3,
A color barcode sheet, wherein a mark is applied or transferred to a predetermined position of the color barcode sheet. In the color barcode sheet according to claim 4,
The color barcode sheet according to claim 1, wherein the mark is a reference for correcting an image obtained by imaging the color barcode sheet. In the color barcode sheet according to any one of claims 1 to 5,
The color barcode sheet, wherein the paint is applied or transferred over the entire area of the color barcode sheet. A color barcode reader for reading a numerical code from a color barcode sheet formed by applying or transferring a color barcode to a sheet,
A color barcode formed by applying or transferring a color barcode made of a paint mixed with a substance that emits light in the visible light region when irradiated with an electromagnetic wave in a non-visible light region to the sheet. An irradiation unit for irradiating the electromagnetic wave to the sheet;
An imaging unit that images the color barcode sheet that emits the color of the visible light region as a color barcode image by being irradiated by the irradiation unit;
A correction unit that corrects the color barcode image captured by the imaging unit;
A numerical code reading unit for reading the numerical code from the color barcode image corrected by the correction unit;
A color barcode reader. The color barcode reader according to claim 7, wherein
The color barcode reading apparatus according to claim 1, wherein when the mark is applied or transferred to a predetermined position of the color barcode sheet, the correction unit corrects the mark based on the mark. The color barcode reader according to claim 7 or 8,
The color barcode reading apparatus, wherein the correction unit performs at least one of rotation correction and enlargement / reduction correction on the color barcode image. The color barcode reader according to any one of claims 7 to 9,
Furthermore, a transmitting unit that transmits the numerical code read by the numerical code reading unit;
A receiving unit for receiving the determination result of the numerical code true / false;
A color barcode reader. The color barcode reader according to any one of claims 7 to 10,
The color bar code reader according to claim 1, wherein the substance is a substance containing a rare earth element. A color barcode reading terminal for reading a numerical code from a color barcode sheet formed by applying or transferring a color barcode to a sheet,
A color barcode formed by applying or transferring a color barcode made of a paint mixed with a substance that emits light in the visible light region when irradiated with an electromagnetic wave in a non-visible light region to the sheet. An imaging unit that captures, as a color barcode image, the color barcode sheet that emits a color in the visible light region by irradiating the electromagnetic wave to the sheet;
A correction unit that corrects the color barcode image captured by the imaging unit;
A numerical code reading unit for reading the numerical code from the color barcode image corrected by the correction unit;
A color barcode reading terminal comprising: The color barcode reading terminal according to claim 12,
The color barcode reading terminal according to claim 1, wherein when the mark is applied or transferred to a predetermined position of the color barcode sheet, the correction unit corrects the mark based on the mark. In the color barcode reading terminal according to claim 12 or 13,
The color barcode reading terminal, wherein the correction unit performs at least one of rotation correction and enlargement / reduction correction on the color barcode image. The color barcode reading terminal according to any one of claims 12 to 14,
Furthermore, a transmitting unit that transmits the numerical code read by the numerical code reading unit;
A receiving unit for receiving the determination result of the numerical code true / false;
A color barcode reading terminal comprising: The color barcode reading terminal according to any one of claims 12 to 15,
The color barcode reading terminal is a mobile phone with a camera function. The color barcode reading terminal according to any one of claims 12 to 16,
The color barcode reading terminal, wherein the substance is a substance containing a rare earth element. A manufacturing system for manufacturing a color barcode sheet attached to an object and the object,
A management information acquisition unit that acquires management information related to the object;
A management unit that generates a numerical code based on the management information acquired by the management information acquisition unit, and manages the management information and the numerical code in association with each other;
An object manufacturing unit that acquires the numerical code managed by the management unit, and manufactures the object associated with the numerical code;
A color barcode sheet manufacturing unit that acquires a numerical code managed by the management unit, and manufactures a color barcode sheet by applying or transferring a color barcode based on the numerical code to the sheet;
A manufacturing system comprising: The manufacturing system according to claim 18, wherein
The color barcode sheet manufacturing department applies or transfers a color barcode made of a paint mixed with a substance that emits a color in the visible light region when irradiated with electromagnetic waves in the invisible light region to the sheet. A manufacturing system characterized by manufacturing a color barcode sheet. In the manufacturing system according to claim 18 or 19,
The management unit transmits information on manufacturing permission of the target to the target manufacturing unit,
The said object manufacturing part manufactures the said object, when the information of the said manufacturing permission is received, The manufacturing system characterized by the above-mentioned. In the manufacturing system according to claim 19 or 20,
The manufacturing system, wherein the substance is a substance containing a rare earth element. A color barcode reading program for causing a computer to read a numerical code from a color barcode sheet formed by applying or transferring a color barcode to a sheet,
A color barcode formed by applying or transferring a color barcode made of a paint mixed with a substance that emits light in the visible light region when irradiated with an electromagnetic wave in a non-visible light region to the sheet. A color barcode image acquisition step for acquiring, as a color barcode image, the color barcode sheet that emits a color in the visible light region by irradiating the electromagnetic wave to the sheet;
A correction step of correcting the color barcode image acquired in the color barcode image acquisition step;
A numerical code reading step of reading the numerical code from the color barcode image corrected in the correction step;
Color barcode reading program that causes a computer to execute. The color barcode reading program according to claim 22,
The color barcode reading program characterized in that, in the correction step, when a mark is applied or transferred to a predetermined position of the color barcode sheet, correction is performed based on the mark. The color barcode reading program according to claim 22 or claim 23,
The color barcode reading program characterized in that the correction step performs at least one of rotation correction and enlargement / reduction correction on the color barcode image. The color barcode reading program according to any one of claims 22 to 24,
Furthermore, a transmission step of transmitting the numerical code read in the numerical code reading step,
A receiving step for receiving a true / false determination result of the numerical code;
Color barcode reading program that causes a computer to execute. The color barcode reading program according to any one of claims 22 to 25,
The color barcode reading program is executed by a computer in a mobile phone. In the color barcode reading program according to any one of claims 22 and 26,
The color barcode reading program characterized in that the substance is a substance containing a rare earth element. A color barcode reading method for reading a numerical code from a color barcode sheet formed by applying or transferring a color barcode to a sheet,
A color barcode formed by applying or transferring a color barcode made of a paint mixed with a substance that emits light in the visible light region when irradiated with an electromagnetic wave in a non-visible light region to the sheet. An irradiation step of irradiating the electromagnetic wave to the sheet;
An imaging step of imaging the color barcode sheet that emits a color in the visible light region as a color barcode image by being irradiated in the irradiation step;
A correction step of correcting the color barcode image captured in the imaging step;
A numerical code reading step of reading the numerical code from the color barcode image corrected in the correction step;
A color barcode reading method is executed. The color barcode reading method according to claim 28,
The color barcode reading method according to claim 1, wherein when the mark is applied or transferred to a predetermined position of the color barcode sheet, the correction is performed based on the mark. The color barcode reading method according to claim 28 or 29,
The color barcode reading method characterized in that the correction step performs at least one of rotation correction and enlargement / reduction correction on the color barcode image. The color barcode reading method according to any one of claims 28 to 30,
Furthermore, a transmission step of transmitting the numerical code read in the numerical code reading step,
A receiving step for receiving a true / false determination result of the numerical code;
A color barcode reading method is executed. The color barcode reading method according to any one of claims 28 and 31,
The color barcode reading method, wherein the substance is a substance containing a rare earth element.

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