JP6015832B2 - Label ledger inspection device and label ledger inspection method - Google Patents

Description

  The present invention relates to a label ledger inspection apparatus for inspecting a label ledger on which a label to be inspected is attached in order to manage the suitability of a label stuck on a food product.

  Conventionally, in food manufacturing factories, various labels are affixed to produced food products. The label is a POS label that displays the name and expiry date of the product as a food product, a packaging label that simply displays the content of the food product, or displays points for promotion It might be a promotional label. And the label sticking operation | work to a food product is performed from the manufacture start of the said food product to completion | finish of manufacture. In the food manufacturing industry, a label ledger with a label to be inspected is generally used to manage the suitability of the label in the labeling operation. The label affixing operation is performed on the basis of the inspected label affixed to the label ledger, thereby improving the accuracy and speed of the label affixing operation.

  FIG. 9 is an explanatory diagram showing the layout configuration of a conventional label ledger. FIG. 6A shows a label ledger 70 of the factory A, FIG. 5B shows a label ledger 80 of the factory B, and FIG. 5C shows a label ledger 90 of the Sakai factory, for example.

  In the label book 70 of the former factory shown in FIG. 4A, the product name “rice balls” is displayed on the sample label 71, and the inspection areas 72 (1) and 72 for attaching the label to be inspected thereunder. (2), 72 (3), 72 (4) are provided. In the inspection area 72, (1), (2), (3), (4) are specified in order from the upper left to the horizontal direction, and when there is a time difference when applying the inspection label, that is, the inspection label is replaced. When you do, stick them in this order. The inspection area 72 is divided and fixed by a broken line 77.

  Therefore, first, three types of inspection labels, the POS label 73, the packaging material label 74, and the sales promotion label 75, are pasted on the inspection area 72 (1). Thereafter, when the label is replaced, that is, when only the volume of the sales promotion label 75 is lost, a new volume is set again and the sales promotion label 75 is inspected again (this is referred to as inspection of the replacement label, hereinafter referred to as replacement label). The sales promotion label 76 is affixed to the inspection area 72 (2). The label ledger 70 of the former factory is such a format.

  In the label book 80 of the Otsu factory shown in FIG. 2B, the product name “rice balls” is displayed on the sample label 81, and the inspection areas 82 (1) and 82 for attaching the inspection label under the barcode. (2), 82 (3), 82 (4) are provided. In the inspection area 82, (1), (2), (3), (4) are designated in order from the upper left in the vertical direction, and when there is a time difference when applying the inspection label, that is, it is replaced with the inspection label. When labels occur, stick them in this order. The inspection area 82 is divided and fixed by a broken line 87.

  Therefore, first, three types of inspection labels, that is, the POS label 83, the packaging material label 84, and the sales promotion label 85 are attached to the inspection area 82 (1). Thereafter, when the label is exchanged, that is, when the sales promotion label 85 is inspected again, the sales promotion label 86 is pasted on the next inspection area 82 (2). The label ledger 80 of the Otsu factory has such a format.

  The label ledger 90 of the Sakai Factory shown in FIG. 6C has a product name “rice ball amount” and a barcode displayed on the sample label 91, and inspection areas 92, 93, and 94 for attaching a label to be inspected thereunder. It is provided. The inspection areas 92, 93 and 94 are separated by a broken line 99 and fixed. The inspection area 92 is a POS area where the POS label 95 is applied, the inspection area 93 is a packaging material area where the packaging material label 96 is applied, and the inspection area 94 is a sales promotion where the sales promotion label 97 is applied. It is an area and is fixed. When there is a time difference when applying the inspection label, that is, when an exchange label is generated on the inspection label, the inspection label is applied in the downward direction in the same area.

  Therefore, the POS label 95 is first attached to the inspection area 92, the packaging material label 96 is attached to the inspection area 93, and the sales promotion label 97 is attached to the inspection area 94. Thereafter, when the label is exchanged, that is, when the sales promotion label 97 is inspected again, the sales promotion label 98 is attached to the inspection area 94. The label ledger 90 of the Sakai factory has such a format. As described above, the layout configurations of the conventional label ledgers 70, 80, and 90 differ depending on the food manufacturing factory.

  Here, it was visually checked by an operator whether the label to be inspected is correctly attached to the label ledger. If the label ledger can find an error when it is created, it can stop the production of food products including the labeling work, and thus prevent unnecessary production. In addition, the label to be inspected can be inspected for a different material label without being distorted by sticking it to the label ledger. Therefore, when creating the label ledger, it is required to use a computer instead of visual inspection. Therefore, in computerization, an image of a label ledger with a label to be inspected is acquired by a scanner or a camera, and the ledger image is automatically inspected by a ledger inspection system to check whether the correct inspected label is pasted by image analysis. It is possible.

  Japanese Patent Laid-Open No. 2008-128944 (Patent Document 1) describes a label inspection apparatus capable of inspecting the quality of a label attached to a container in a labeler. In the label inspection apparatus of Patent Document 1, an imaging unit is installed in the labeler 1, and the quality of a label is determined by comparing and calculating a feature point and a reference value.

JP 2008-128944 A

  However, in order to analyze the ledger image of the label ledger related to the prior art with the ledger inspection system, it is necessary to change the layout configuration of the label ledger of each factory to a layout configuration that allows inspection by the ledger inspection system. there were. That is, as shown in FIG. 9, since the layout configuration of the label ledger is different for each factory, each factory is forced to change the layout of the label ledger, and the burden on each factory is large. On the other hand, the layout configuration of the label ledger at each factory also has a situation that the design cannot be freely changed. If the layout of the label ledger is changed, it is necessary to register the layout in the ledger inspection system each time.

  The problem to be solved by the present invention is to provide a label ledger inspection apparatus that does not change the layout of the label ledger in each factory.

  In order to solve the above problems, the label ledger inspection apparatus according to the present invention is a label ledger inspection apparatus for inspecting a label ledger with a label to be inspected in order to manage the adequacy of a label stuck on a food product. And a ledger image storage unit for storing a ledger image acquired by the imaging device from the label ledger in which the inspected label including the POS label is pasted in a free format, the ledger image received this time from the imaging device, and immediately before Obtaining a difference image from the received ledger image, setting an inspection area including an inspection label image from the difference image, an inspection area image of the inspection area, and a registered label image registered in advance A label image storage unit for storing the label image storage unit, the label image storage unit stored in the label image storage unit, and the registered label image It is characterized in that it has a inspection label inspection unit to compare test.

  According to the present invention having the above-described configuration, the inspection region setting unit obtains the difference image from the ledger image received this time from the imaging device and the ledger image received immediately before, so that the exchanged packaging material label and POS label are obtained. The label to be inspected can be specified. Therefore, the operator can paste the label to be inspected on the label ledger in a free format without worrying about the layout of the label ledger at each factory, so that the label ledger without changing the layout of the label ledger at each factory. An inspection device can be provided.

  In addition, when using the ledger inspection system, it is necessary to define each inspection area in the layout of the label ledger, according to the present invention, the label to be inspected may be pasted anywhere in the label ledger, This has the effect of eliminating the need to define the inspection area.

  In addition, since it has an inspected label inspection unit for comparing and inspecting an inspected label image based on the inspection area and a registered label image registered in advance in the label image storage unit, an accurate label ledger can be created , It has the effect of preventing the production of waste food products.

It is a block diagram which shows the structure of the label ledger inspection apparatus regarding 1st Embodiment. It is explanatory drawing which shows the kind of label. It is explanatory drawing which shows the layout structure of the label ledger regarding this Embodiment. It is explanatory drawing which shows the outline | summary of operation | movement of the label ledger inspection apparatus regarding this Embodiment. It is a flowchart which shows operation | movement of the label ledger inspection apparatus regarding this Embodiment. It is explanatory drawing which shows calculation of the center point of a difference image. It is explanatory drawing which shows the test | inspection area | region containing a to-be-inspected label image. It is explanatory drawing which shows the layout structure of the label ledger regarding this Embodiment. It is explanatory drawing which shows the layout structure of the conventional label ledger.

(First embodiment)
Hereinafter, a first embodiment of the present invention will be described. FIG. 1 is a block diagram showing the configuration of the label ledger inspection apparatus according to the first embodiment. In a food manufacturing factory such as a box lunch or a side dish, the label ledger 3 is created by attaching a label 31 to be inspected, which will be described later, in order to manage the suitability of the label in the operation of attaching the label to the food product. The created label ledger 3 is scanned and read by a camera or scanner 2 as an imaging device. A ledger image 3-2 described later acquired by the scanner 2 is sent to the label ledger inspection apparatus 1 as an image signal.

  The label ledger inspection apparatus 1 includes a personal computer and includes an image input unit 11 that receives an image signal from the scanner 2. The image signal received by the image input unit 11 is converted into a ledger image 3-2 and stored in the ledger image storage unit 28 of the image memory 12. The ledger image storage unit 28 stores the ledger image 3-1 received in the past. Further, the parameter storage unit 29 of the image memory 12 stores a line number, a product number, a flight number, and an inspection date, which are parameters of the ledger image 3-2, corresponding to the ledger image 3-2. Further, the ledger image storage unit 28 stores a blank ledger image 3-0, which will be described later. The blank ledger image 3-0 is an image of the label ledger 3 in which the label 31 to be inspected is not yet attached.

  The target area difference calculation unit 13 of the label ledger inspection apparatus 1 calculates the difference image 42 from the ledger image 3-2 received this time from the scanner 2 and the blank ledger image 3-0 at the first inspection. The target area difference calculation unit 13 calculates a difference image 42 from the ledger image 3-2 received this time and the ledger image 3-1 received immediately before the second and subsequent examinations. When the difference image 42 is obtained, it is found that the inspection label 37 described later having a temporal difference, that is, the exchanged promotion label 37 is included.

  Whether the inspection is the first inspection or the inspection after the second is determined based on the ledger image 3-1 having the same line number, product number, flight number, and inspection date as the parameters of the ledger image. If it is in the storage unit 29, it is the second or later inspection, and if it is not, it is the first inspection. The ledger image 3-1 received immediately before is the ledger image with the immediately preceding examination time among the images having the same line number, product number, flight number, and examination date as the parameters of the ledger image scanned by the scanner 2. 3-1.

  The center point calculation unit 14 calculates the center point 43 of the difference image 42 after obtaining the difference image 42. The inspection area setting unit 15 sets an inspection area 44 having a predetermined distance from the center point 43. The inspection area 44 is created for each label image 31-1 to be inspected. Therefore, since the inspection area 44 includes any of the inspection label images 31-1 among these, the inspection area 44 specifies the exchanged inspection label image 31-1.

  The inspection label image 31-1 and a registered label image 45 registered in advance, which will be described later, are stored in the label image storage unit 30 of the image memory 12. Further, the inspected label inspection unit 16 compares and inspects the inspected label image 31-1 and the registered label image 45. The inspected label inspection unit 16 checks the number of the inspected label images 31-1 and the images. Here, the image check performed by the inspected label inspection unit 16 compares and inspects the feature points of the inspected label image 31-1 and the feature points of the registered label image 45. Speeding up can be expected by comparing feature points. As a result of the comparison inspection, when the inspected label image 31-1 is the same as the registered label image 45 registered in advance, the label ledger 3 has no error.

  Further, the display unit 17 displays the inspection result by the inspected label inspection unit 16, and the storage unit 18 stores information necessary for the label ledger inspection operation. The parameter comparison unit 19 extracts a ledger image in which the line number, product number, flight number, and examination date that are parameters of the ledger image stored in the parameter storage unit 29 match. Here, the line number is a unique number assigned to a food production line, the product number is a unique number assigned to the type of product as a food product, and the flight number is a food production number. It is a lot number, and the inspection date is the inspection date of the label ledger 3. And the control part 20 controls said each part.

  FIG. 2 is an explanatory diagram showing the types of labels. In the food manufacturing factory, the following three types of labels are affixed to the produced food product (here, “rice ball”). The POS label 4 displays the name of the product (here, “Sea Chicken (registered trademark) mayonnaise”), the expiration date (February 4, 2012 at 7:00 pm), the name of the raw material, the manufacturer, and the like. The packaging material label 5 displays the contents of the food product (here, “Sea chicken mayonnaise”) and a graphic on a circular mount. And the sales promotion label 6 displays the point score for the sales promotion to a consumer on an elliptical mount. The sales promotion label 6 may be a newly released sticker for a new release.

  These labels are affixed to the rice balls during the production process of “rice balls” as food products. Prior to that, the inspected label 31 (that is, the POS label 34, the packaging material label 35, and the sales promotion label 36) identical to the POS label 4, the packaging material label 5, and the sales promotion label 6 is affixed to the label ledger 3 described below. It is done. The worker confirms the inspected label 31 (that is, the POS label 34, the packaging material label 35, and the sales promotion label 36) affixed to the label ledger 3, and the POS label 4 and the packaging material on the rice ball as a food product. The operation of attaching the label 5 and the promotional label 6 is performed.

  FIG. 3 is an explanatory diagram showing the layout configuration of the label ledger 3 relating to the present embodiment. The layout configuration of the label ledger 3 relating to the present embodiment is the same as the layout configuration of the label ledger 70 in the former factory in FIG. Since the layout configuration of the label ledger 3 according to the present embodiment is a free format, the layout configuration is not limited to this, and may be the same as the layout configuration of the label ledger 80 at the Otsu factory or the label ledger 90 at the Sakai factory.

  In the label book 3 of the former factory relating to the present embodiment shown in the same figure, “O” as the factory name 21, “01” as the production line number 22, and a barcode 23 describing these information are displayed at the top. . In the next row, the product name “Sea chicken mayonnaise” and the barcode 25 are displayed as the sample label 24.

  Below this, an inspection area 26 is provided to which an inspection label 31 (for example, a POS label 34, a packaging material label 35, and a sales promotion label 36) to be described later is attached. Although a broken line 27 is described in the inspection area 26, the broken line 27 may be ignored because the inspection label 31 can be pasted in a free format. Therefore, first, three kinds of inspection labels 31 of the POS label 34, the packaging material label 35, and the sales promotion label 36 are attached to any place in the inspection area 26. Thereafter, when the label is replaced, that is, when the sales promotion label 36 is inspected again, the next replacement sales promotion label 37 may be pasted at any place in the inspection area 26.

  Next, operation | movement of the label ledger inspection apparatus 1 regarding this Embodiment is demonstrated. FIG. 4 is an explanatory diagram showing an outline of the operation of the label ledger inspection apparatus according to the present embodiment. First, the label ledger 3 with the inspected label 31 is created. The label ledger inspection apparatus 1 relating to the present embodiment is for inspecting whether the label 31 to be inspected is correctly attached to the label ledger 3. The label ledger 3 is scanned by the scanner 2 and sent to the label ledger inspection apparatus 1.

  In the label ledger inspection apparatus 1, a difference image 42 is created between the ledger image 3-2 received this time and the blank ledger image 3-0 or the ledger image 3-1 received immediately before. When the ledger image 3-2 received this time is the first inspection, it is compared with the blank ledger image 3-0. At the time of the second inspection, it is compared with the ledger image 3-1 received immediately before. Then, when the difference image 42 is created, the inspection label image 31-1 is specified from the difference image 42, so that a comparison inspection with the registered image 45 registered in advance is performed.

Next, details of the operation of the label ledger inspection apparatus 1 will be described. FIG. 5 is a flowchart showing the operation of the label ledger inspection apparatus according to this embodiment.
S101: The control unit 20 of the label ledger inspection apparatus 1 instructs the image input unit 11 to accept the image signal from the scanner 2. Then, the control unit 20 instructs the ledger image storage unit 28 of the image memory 12 to convert the received image signal into the ledger image 3-2 and store it.

  S102: The control unit 20 instructs the parameter comparison unit 19 to extract parameters from a ledger image (eg, 3-1) stored in the parameter storage unit 29.

  S103: Then, the control unit 20 compares the parameter of the ledger image 3-2 received this time with the parameter of the stored ledger image (stored image 3-1) with respect to the parameter comparison unit 19, and the same parameter is obtained. It is instructed to determine whether or not there is a stored image 3-1.

  S104: When there is no stored image 3-1 of the same parameter, that is, since this is the first inspection after creating the label ledger, the control unit 20 extracts a blank ledger image 3-0, which will be described later, from the image memory 12. Instruct them to do so.

  S105: The control unit 20 instructs the target area difference calculation unit 13 to calculate the difference image 42 from the blank ledger image 3-0 and the currently received ledger image 3-2.

  S106: The control unit 20 instructs the center point calculation unit 14 to calculate the center point 43 of the difference image 42. This will be described with reference to FIG. FIG. 6 is an explanatory diagram showing calculation of the center point 43 of the difference image 42. FIG. 5A shows a part of a blank ledger image 3-0. The blank ledger image 3-0 has no image of the label 31 to be inspected. FIG. 5B shows a part of the ledger image 3-2 received this time. In the ledger image 3-2 received this time, the inspection label image 31-1 of the packaging material label 35 appears. The difference image 42 calculated in step 105 is the same as a part of the ledger image 3-2 received this time shown in FIG. The difference image 42 is X2-X1 in the X-axis direction and Y2-Y1 in the Y-axis direction. Then, the center point 43 of the difference image 42 calculated in step 106 is obtained from X0 = (X2-X1) / 2, Y0 = (Y2-Y1) / 2.

  S107: When the center point 43 of the difference image 42 is obtained, the control unit 20 instructs the inspection region setting unit 15 to set the inspection region 44 having a predetermined distance from the center point 43. The inspection area 44 includes the inspection label image 31-1. FIG. 7 is an explanatory diagram showing an inspection area 44 including the inspection label image 31-1. A center point 43 is at the center of the inspection label image 31-1. An inspection area 44 is set at a predetermined distance from the center point 43. The inspected label image 31-1 and the registered label image 45 registered in advance are stored in the label image storage unit 30 of the image memory 12. At that time, it is stored for each inspection area 44. That is, the inspection area 44 including the inspection label image 31-1 and the inspection area 44 including the registered label image 45 are stored in the image memory 12.

  S108: The control unit 20 instructs the inspected label inspection unit 16 to perform a comparative inspection between the inspected label image 31-1 and the registered label image 45 registered in advance. Here, the inspected label inspection unit 16 compares and inspects the feature points of the inspected label image 31-1 and the feature points of the registered label image 45. As a result of the inspection, when the inspected label image 31-1 is the same as the registered label image 45 registered in advance, the label ledger 3 has no error. When there is no error in the label ledger 3, the process proceeds to the next step. When there is an error in the label ledger 3, the control unit 20 displays this on the display unit 17 and interrupts the operation.

  S109: The control unit 20 determines whether or not there is another inspected label image 31-1. If there is another inspected label image 31-1, steps 105 to 108 are repeated. If there is no other inspected label image 31-1, the process proceeds to step 116.

  S110: When there is a stored image 3-1 of the same parameter in step 103, that is, since the second and subsequent inspections after the label ledger is created, the control unit 20 creates the latest ledger for the image memory 12 Instructs to extract image 3-1.

  S111: The control unit 20 instructs the target area difference calculation unit 13 to calculate the difference image 42 from the ledger image 3-1 with the latest creation time and the ledger image 3-2 received this time. As a result, it is possible to identify the inspected label 37 having a time difference, that is, the replaced promotional label 37.

  S112: The control unit 20 instructs the center point calculation unit 14 to calculate the center point 43 of the difference image 42. Details are the same as step 106.

  S113: When the center point 43 of the difference image 42 is obtained, the control unit 20 instructs the inspection region setting unit 15 to set the inspection region 44 having a predetermined distance from the center point 43. Details are the same as in step 107.

  S114: The control unit 20 instructs the inspected label inspection unit 16 to perform a comparative inspection between the inspected label image 31-1 and the registered label image 45 registered in advance. The inspected label inspection unit 16 compares and inspects the feature points of the inspected label image 31-1 and the feature points of the registered label image 45. As a result of the inspection, when the inspected label image 31-1 is the same as the registered label image 45 registered in advance, the label ledger 3 has no error. When there is no error in the label ledger 3, the process proceeds to the next step. When there is an error in the label ledger 3, the control unit 20 displays this on the display unit 17 and interrupts the operation.

  S115: The control unit 20 determines whether or not there is another inspected label image 31-1. If there is another inspected label image 31-1, steps 111 to 114 are repeated. If there is no other inspection label image 31-1, the process proceeds to step 116.

  S116: In step 109 or 115, if there is no other inspected label image 31-1, the control unit 20 displays on the display unit 17 that the inspection of the label ledger 3 is completed and the label ledger 3 is completed. Instruct. Thus, the worker uses the completed label ledger 3 to start production of food products.

  FIG. 8 is an explanatory diagram showing the layout configuration of the label ledger 3 relating to the present embodiment. The label book 3 of the factory A shown in FIG. 3 has three types of POS label 34, packaging material label 35, and sales promotion label 36 as an inspected label 31 at an arbitrary position in the inspection area 26 of the label book 3 shown in FIG. It shows that the to-be-inspected label 31 is stuck. After that, it shows that the exchanged promotional label 37 is pasted. Although the inspection area 26 is indicated by a broken line 27, the label ledger 3 relating to the present embodiment can be ignored because the inspected label 31 can be pasted in a free format.

  As described above, according to the present embodiment, the inspection area setting unit 15 obtains the difference image 42 from the ledger image 3-2 received this time from the scanner 2 and the ledger image 3-1 received immediately before. Therefore, it is possible to identify the inspected label 37 having a difference, that is, the replaced promotional label 37. Further, since the difference image 42 is obtained from the ledger image 3-2 received this time from the scanner 2 and the blank ledger image 3-0, the label 31 to be inspected first can be specified.

  Accordingly, the worker can attach the label 31 to be inspected (for example, the POS label 34, the packaging material label 35, and the promotional label 36) to the label ledger 3 in a free format without worrying about the layout of the label ledger 3 in each factory. Therefore, it is possible to provide the label ledger inspection apparatus 1 that does not change the layout of the label ledger 70, 80, 90 of each factory.

  Further, when using the ledger inspection system, it is necessary to define the inspection areas 44 in the layout of the label ledgers 70, 80, 90. According to the present invention, the inspected label 31 (for example, the POS label) is free-formatted. 34, the packaging material label 35, and the sales promotion label 36) may be pasted anywhere in the label ledger 3, and thus there is an effect that it is not necessary to define the inspection area 44.

  Further, since the inspected label image 31-1 based on the inspection area 44 and the registered label image 45 registered in advance in the label image storage unit 30 of the image memory 12 are provided, the inspected label inspection unit 16 is compared. Thus, the accurate label ledger 3 can be created, and the production of useless food products can be prevented.

DESCRIPTION OF SYMBOLS 1 Label ledger inspection apparatus 2 Scanner 3 Label ledger 4 POS label 5 Packaging label 6 Promotion label 11 Image input part 12 Image memory 13 Target area difference calculation part 14 Center point calculation part 15 Inspection area setting part 16 Inspected label inspection part 17 Display unit 18 Storage unit 19 Parameter comparison unit 28 Ledger image storage unit 29 Parameter storage unit 30 Label image storage unit 31 Inspected label 31-1 Inspected label image 34 Inspected label (POS label)
35 Inspected label (wrapping material label)
36 Inspected label (promotional label)
37 Inspected labels (exchanged promotional labels)
3-0 Blank ledger image 3-1 Ledger image received immediately before 3-2 Ledger image received this time 42 Difference image 43 Center point 44 Inspection area

Claims (2)

In the label ledger inspection device that inspects the label ledger with the label to be inspected in order to manage the suitability of the label affixed to the food product,
A ledger image storage unit for storing a ledger image acquired by the imaging device from the label ledger on which the inspection label including the packaging material label and the POS label is pasted in a free format;
An examination area setting unit that obtains a difference image from the ledger image received this time from the imaging device and the ledger image received immediately before, and sets an examination area including a label image to be inspected from the difference image;
A label image storage unit for storing the inspection label image of the inspection region, a registered label image registered in advance,
A label ledger inspection apparatus comprising: the inspected label image stored in the label image storage unit; and an inspected label inspection unit that compares and inspects the registered label image. In the label ledger inspection method for inspecting the label ledger with the label to be inspected in order to manage the suitability of the label affixed to the food product,
A ledger image receiving step of receiving a ledger image obtained by scanning the label ledger on which the label to be inspected including a packaging material label and a POS label is pasted in a free format;
An image data storage step of storing the ledger image received from the imaging device and the ledger image received immediately before in an image data storage unit;
A difference image calculation step for obtaining a difference image from both of the ledger images;
An inspection area setting step for setting an inspection area including an inspection label image of the inspection label from the difference image;
A label ledger inspection method comprising: an inspection label inspection step of comparing and inspecting the inspection label image based on the inspection area and a registered label image registered in advance.

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