JP7189677B2 - Article inspection system, article inspection method - Google Patents

Description

Application of Patent Law Article 30, Paragraph 2 On November 16, 2017, Sato Holdings Co., Ltd. delivered this system to Mitsubishi Hitachi Tool Engineering, Ltd. as an article inspection system.

The present invention relates to an article inspection system and an article inspection method.

2. Description of the Related Art Conventionally, identification information such as barcodes displayed on articles is inspected. For example, in the clinical testing apparatus described in Patent Document 1, a barcode label on which a barcode indicating a sample ID is printed is printed and attached to a sample container. The barcode of the sample container is read by the barcode reading unit. If the barcode reading is not successful, an error code indicating barcode reading failure is sent to the system, and the error is finally displayed.

JP 2011-191204 A

Conventional article inspection systems are not always efficient because they inspect each single article. On the other hand, in recent years, there are also readers capable of simultaneously reading identification information such as barcodes displayed on a plurality of articles. However, with such a reader, although it is possible to detect the presence of an error article among the plurality of articles from the results of reading the barcodes displayed on the plurality of articles, any article among the plurality of articles can be detected. was an error. This is even more so when the number of articles to be inspected is large.

SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to make it possible to easily identify an error product from a plurality of products to which identification information is attached.

One aspect of the present invention is an article inspection system that inspects a plurality of articles that are assigned identification information and arranged according to a predetermined arrangement rule,
a reader that simultaneously reads the identification information displayed on each of the plurality of articles;
a display on which the results read by the reader are displayed;
Control to display the plurality of sections divided in correspondence with the positions where the plurality of articles are arranged on the display unit so that the section corresponding to the article whose reading result by the reader is erroneous can be identified. Department and
An article inspection system comprising
The control unit determines whether the error type of the article for which the reading result by the reader is an error is an error type indicating that the identification information cannot be read by the reader, or the degree of collation of the reading of the identification information by the reader is If it is at least one first error type among the error types indicating that the error is less than or equal to a predetermined value, the first error type is identifiably displayed in the section corresponding to the error article.

According to one aspect of the present invention, it is possible to easily identify an error product from a plurality of products to which identification information is attached.

It is a figure showing a schematic structure of an article inspection system of an embodiment. It is a figure which shows an example of the label stuck on goods. FIG. 3a is a perspective view of an article to which a label is attached, and FIG. 3b is a diagram showing a configuration example of data (read data) included in a QR code (registered trademark) printed on the label. 1 is a front view of a case used in an article inspection system of an embodiment; FIG. 5 is a diagram showing a state in which articles are arranged in the case shown in FIG. 4; FIG. 1 is a block diagram showing the system configuration of an article inspection system in an embodiment; FIG. 4 is a diagram showing a configuration example of scan data; FIG. It is a figure which shows the structural example of arrangement management data. 4 is a sequence chart executed in the article inspection system of the embodiment; 4 is a flowchart executed in the information processing apparatus of the embodiment; It is a figure which shows an example of the screen displayed on the information processing apparatus of embodiment. It is a figure which shows an example of the screen displayed on the information processing apparatus of embodiment. It is a figure which shows an example of the screen displayed on the information processing apparatus of embodiment. It is a figure which shows an example of the screen displayed on the information processing apparatus of embodiment.

An article inspection system 1 that is an embodiment of the present invention will be described below with reference to the drawings.
In addition, the "article" of the present invention is not limited to the product itself such as a product or a semi-finished product (something that is in the process of being manufactured and has not yet reached the product), but is an exterior product that contains the product as a content (for example, a product that is packaged) packed boxes or bags). Therefore, "attaching identification information to an article" is not limited to attaching identification information to the article itself, but also includes attaching identification information to an external article containing the article as a content. In addition, "attaching" is not limited to, for example, displaying the identification information on the article itself or the outer packaging by printing, etc., but the medium on which the identification information is printed (for example, regardless of the material such as paper medium, film medium, etc.) affixing to the article itself or to the exterior article.
In the present invention, "a section corresponding to an error article becomes identifiable" is not limited to a mode in which information such as a predetermined character string, symbol, or mark indicating an error is displayed in the section. It also includes a mode in which information such as a character string, a symbol, a mark, etc. is displayed only in the corresponding section so that the section corresponding to the article in error can be recognized.

(1) Schematic Configuration of Article Inspection System 1 A schematic configuration of the article inspection system 1 of the present embodiment will be described below with reference to FIGS. 1 to 5. FIG. FIG. 1 is a diagram showing a schematic configuration of an article inspection system 1 of this embodiment. FIG. 2 is a diagram showing an example of a label PL attached to an article. Figure 3a is a perspective view of an article P to which a label PL is applied. FIG. 3b is a diagram showing a configuration example of data (read data) included in the QR code (registered trademark) printed on the label PL. FIG. 4 is a front view of the case 6 used in the article inspection system 1 of this embodiment. FIG. 5 is a diagram showing a state in which articles P are arranged in case 6 shown in FIG.

As shown in FIG. 1, an article inspection system 1 of this embodiment includes an information processing device 2, a printer 3, a reader 4, and a barcode scanner 5. FIG. Printer 3 , reader 4 , and bar code scanner 5 are each connected to information processing device 2 . The article inspection system 1 is a system that is installed, for example, in a factory that manufactures articles or a warehouse that manages articles, and inspects a plurality of articles simultaneously or collectively.

The information processing device 2 is, for example, a personal computer device, a tablet computer device, or the like, and has a predetermined inspection program installed therein.
The reader 4 is a code reader that simultaneously or collectively reads two-dimensional codes 10 (an example of identification information; described later) displayed on a plurality of articles P contained in the case 6 . Although the type of the two-dimensional code 10 is not particularly limited, an example of the two-dimensional code 10 is a QR code (registered trademark).

In FIG. 1, a delivery slip V is a slip related to an article P to be inspected. The delivery slip V includes a bar code bc. The barcode bc contains order data. In the example shown in FIG. 1, the order data includes the order number for identifying the order and the total number of articles P arranged by the order number.

The barcode scanner 5 is a scanner (for example, a handy scanner) that reads the barcode bc displayed on the delivery slip V. FIG. Since the barcode scanner 5 is connected to the information processing device 2, when the barcode scanner 5 reads the barcode bc of the order slip V, the information processing device 2 reads the order number and the order number in association with the inspection order number. The total number of items P to be processed can be recognized.
Note that the barcode scanner 5 is not necessarily essential in this embodiment. For example, when the order number and the total number of articles P are printed on the order slip, the data is read into the information processing apparatus 2 based on the direct input of the order number and the total number of articles P to the information processing apparatus 2. can be configured to

As shown in FIG. 2, a label PL (an example of a printing medium) attached to an article P has a printing surface Ps on which information is printed on the front side, and an adhesive surface As coated with an adhesive on the back side. is provided. The printing surface Ps is formed with a thermosensitive coloring layer that develops a specific color when it reaches a predetermined temperature range.

In the example of this embodiment, the product number (for example, "1234") of the article P to which the label PL is attached and the two-dimensional code 10 are printed on the printing surface Ps of the label PL.
In FIG. 2, imaginary lines L1 and L2 shown on the front side of the label PL indicate positions that serve as references when the label PL is affixed to the article P. As shown in FIG. The label PL is attached to the article P as shown in FIG.

As shown in FIG. 3B, the two-dimensional code 10 includes, as read data, data such as "arrangement number", "case unit number", "product number", and "manufacturing date". The "arrangement number" indicates the number when the article P is arranged (for example, the order number), like the arrangement data. The “case unit number” indicates the number of articles P that can be accommodated in the case 6 . "Product number" is a number that identifies the article P (for example, model number, serial number, etc.). "Manufacturing date" is the year and month in which the article P was manufactured.

As shown in FIG. 4, the case 6 is composed of an outer frame 61 and a partition frame 62 arranged in the outer frame 61. The outer frame 61 and the partition frame 62 form a plurality of partitions M. It is In the example shown in FIG. 4, 50 sections M(1,1) to M(10,5) of 10×5 are formed.

FIG. 5 shows a case where articles P are arranged in all 50 compartments of case 6 . That is, as shown in the "case unit number" (see FIG. 3) of the read data, it shows a state in which 50 articles P are contained in one case. When the articles P are arranged in each section, the two-dimensional code 10 of the label attached to each article P faces the front and is exposed. As shown in FIG. 1, the two-dimensional codes 10 corresponding to all articles P contained in the case 6 are simultaneously read by the reader 4 .

The information processing device 2 is configured to evaluate the reading results of the two-dimensional codes 10 of the 50 articles P in the case 6 simultaneously read by the reader 4 by executing the inspection program, and display the evaluation results. It is The display mode of the evaluation result will be described later.

The printer 3 is a label printer that prints predetermined information such as characters, symbols, graphics, or barcodes on a label based on a print request received from the information processing device 2 and issues the label. The print request includes print data and the number of print instructions. In the example of this embodiment, the printer 3 is configured to print the label PL for which the reading result of the two-dimensional code 10 is an error.

(2) Configuration of Each Section of Article Inspection System 1 Next, the configuration of each section of the article inspection system 1 of this embodiment will be described with reference to FIGS. FIG. 6 is a block diagram showing the system configuration of the article inspection system 1 of this embodiment. FIG. 7 is a diagram showing a configuration example of scan data. FIG. 8 is a diagram showing a configuration example of arrangement management data.

As shown in FIG. 6 , the reader 4 includes a control section 41 , an imaging section 42 and a communication section 43 .
The control unit 41 includes a microcomputer and memory (RAM (Random Access Memory), ROM (Read Only Memory)) and controls the operation of the reader 4 . The microcomputer reads and executes a program stored in the ROM when the reader 4 is activated.
The imaging unit 42 includes a light emitting unit and a light receiving unit. The light emitting unit includes, for example, an LED (Light Emitting Diode) light source, and emits light to the front surface of the case 6 to be read. The light receiving unit includes, for example, a CMOS image sensor with a predetermined number of pixels, and acquires an image of the front surface of the case 6 illuminated by the light emitting unit.
The communication unit 43 includes a communication interface circuit for communicating with the information processing device 2 .

Upon receiving a scan instruction from the information processing device 2 via the communication unit 43 , the control unit 41 controls the imaging unit 42 to perform processing for acquiring an image of the front surface of the case 6 .
The control unit 41 reads at least the following (a1), (a2), and (a3) based on the image of the front surface of the case 6 (hereinafter referred to as “acquired image” as appropriate) acquired by the imaging unit 42. Execute the process.
(a1) A process of extracting images for each of 50 sections (hereinafter referred to as "section images" as appropriate) from the acquired image
(a2) Processing to obtain a two-dimensional binarized image from the image of the two-dimensional code 10 included in each block image
(a3) Processing for acquiring data (that is, the read data in FIG. 3b) from the binarized image according to the code standard (decoding processing)

Note that when the reading process is executed, the control unit 41 determines that the reading is successful if the read data can be obtained from the two-dimensional code 10, and determines that the read data is not obtained from the two-dimensional code 10. is determined as "reading failure". Since the acquired image includes 50 sections, the determination of read success or read failure is made for each section of the two-dimensional code 10 .
When the control unit 41 determines that the two-dimensional code 10 in a specific section has been successfully read, it records the value of the matching level of the two-dimensional code 10 in the section. The matching level is a value that indicates the degree of matching that indicates how easy it was to read the two-dimensional code 10 when it was successfully read. The matching level is a value in the range of 0 to 100, and the matching level is 100 when the matching degree is the best. For example, if the contrast of the image of the two-dimensional code 10 is low because the printing quality of the two-dimensional code 10 is low or the illuminance of the light emitted from the light emitting unit is low, the matching level will be low.

The control unit 41 generates scan data indicating the reading result of the front surface of the case 6 and transmits the scan data to the information processing device 2 via the communication unit 43 .
In the example shown in FIG. 7, the scan data are read data (see FIG. 3b) obtained by the decoding process for each of the sections M(1,1) to M(10,5) of case 6, It consists of a matching level and an image file of the partition image. The image file is, for example, a bitmap format file, but may be another format file.
It should be noted that, as a result of the reading process, when it is determined that the reading has failed, the reading data and the matching level data are not created for the corresponding section.

Referring to FIG. 6 , the barcode scanner 5 includes a control section 51 , a reading section 52 and a communication section 53 .
The control unit 51 includes a microcomputer and memory (RAM, ROM) and controls the operation of the barcode scanner 5 . The microcomputer reads and executes a program stored in the ROM when the bar code scanner 5 is activated.
The reading unit 52 has the same configuration as the imaging unit 42 of the reader 4, and reads data from the bar code to be scanned under the control of the control unit 51. FIG.
The communication unit 53 includes a communication interface circuit for communicating with the information processing device 2 in order to supply the data read by the reading unit 52 to the information processing device 2 .

Referring to FIG. 6 again, the information processing device 2 includes a control section 21 , a storage 22 , an operation input section 23 , a display section 24 and a communication section 25 .
The control unit 21 includes a microcomputer and memory (RAM, ROM) and controls the operation of the information processing device 2 . The microcomputer reads and executes the inspection program stored in the ROM when the information processing device 2 is started.

The storage 22 is a storage device such as an HDD (Hard Disk Drive) or an SSD (Solid State Drive). The storage 22 stores order management data and scan data acquired from the reader 4 .

The arrangement management data is data in which information related to arrangement of one or more articles managed by the information processing device 2 is aggregated.
In the example shown in FIG. 8, the order management data includes, for each order number, the item name of the article (for example, "tool A"), the article number (for example, "1234"), the number of cases per unit (for example, "50"), and the photographing range. It consists of each data of a number (for example, "2").
As already mentioned, the product number indicates a number (for example, model number, serial number, etc.) specifying the product, and the case unit quantity indicates the number of products P that can be accommodated in the case 6 .
The imaging range number is a number determined according to the size of the front surface of the case 6 (for example, any value from 1 to 4). This is the number used for switching according to the size of . The shooting range number is included in the scan instruction transmitted from the information processing device 2 to the reader 4 .

It is not essential that the information processing device 2 notifies the reader 4 of the shooting range number. If the size of the front surface of the case 6 is predetermined, there is no need for the information processing device 2 to notify the reader 4 of the photographing range number. In that case, the reader 4 may fix the setting of the photographing range.

The operation input unit 23 includes an input device such as a keyboard, mouse, pointing device, etc., and an input interface circuit that receives operation input from the input device.
The display unit 24 includes a display panel (not shown) and a drive circuit that displays an image on the display panel, and displays, for example, the execution result of the inspection program.
The communication unit 25 includes a communication interface circuit for communicating with the printer 3, reader 4 and barcode scanner 5. FIG.

The control unit 21 executes at least the following processes (b1) to (b5) by executing the inspection program.
(b1) A process of searching the order management data using the order number included in the order data read by the bar code scanner 5 as a key, and determining whether or not the order number is included in the order management data.
(b2) Processing of transmitting a scan instruction to the reader 4 via the communication unit 25 and receiving scan data (see FIG. 7) from the reader 4
(b3) Process for judging normality or error in reading results for each of multiple sections based on scan data
(b4) A process of displaying on the display unit 24 a plurality of partitions divided in association with the plurality of partitions on the front surface of the case 6. Among the plurality of partitions to be displayed, it is possible to identify the partition where the read result is an error. process to make
(b5) A process of repeatedly executing the processes (b2) to (b4) for multiple sections until the inspection of the total number of articles P is completed.

Preferably, the control unit 21 displays the error type of the section for which the read result is an error in an identifiable manner.
The error types of the reading result by the control unit 21 are, for example, the following three error types E1 to E3. The error type E1 or E2 is an example of the first error type, and the error type E3 is an example of the second error type.

[Error type]
E1: Error type caused by reading failure (that is, reading is not possible) for the two-dimensional code 10 by the reader 4 E2: The matching level when reading the two-dimensional code 10 by the reader 4 is a predetermined value Error type caused by the following E3: Error type caused by the fact that the reading result of the two-dimensional code 10 by the reader 4 is successful, but the read data is not predetermined information (planned data).

The control unit 21 causes the printer 3 to issue the label PL on which the two-dimensional code 10 corresponding to the article P whose reading result is an error is printed in accordance with the operation input to the operation input unit 23 or automatically. Control. For example, the control unit 21 transmits a print instruction to the printer 3 so as to issue the labels PL for the number of sections for which the read results are erroneous in the above processes (b3) and (b4).

Referring to FIG. 6 again, the printer 3 includes a control section 31 , a storage 32 , an operation input section 33 , a display section 34 , a motor drive section 35 , a head drive section 36 and a communication section 37 .
The control unit 31 includes a microcomputer and memory (RAM, ROM) and controls the operation of the printer 3 . The microcomputer reads and executes the firmware stored in the ROM when the printer 3 is activated.

The storage 32 is a storage device such as HDD or SSD. The layout and format data of the label PL are recorded in the storage 32, and read by the firmware when printing the label PL.

The operation input unit 33 includes, for example, an input device including various operation buttons or a touch panel input mechanism, and an input interface circuit that receives operation input by button operation or touch panel operation.
The display unit 34 includes a display panel (not shown) and a drive circuit that displays an image on the display panel, and displays, for example, the execution result of the inspection program.
The communication unit 37 includes a communication interface circuit for communicating with the information processing device 2 .

The motor drive unit 35 drives a stepping motor (not shown) that controls the rotation of a platen roller (not shown) to pull out and convey the continuous label strip from the roll paper accommodated in the printer 3 . Note that the roll paper is obtained by winding a label continuous body in which a plurality of labels PL are continuously and temporarily attached to a band-shaped backing paper. An adhesive surface As (see FIG. 2) on the back side of the label PL is attached to one surface of the strip-shaped mount.
In response to a transport request from the control unit 31, the motor driving unit 35 transports the continuous label strip in the transport direction (forward direction or reverse direction) and transport amount specified by the transport request. The designated transport direction and transport amount correspond to, for example, the rotation direction and number of steps of the stepping motor. The motor driving section 35 drives the stepping motor based on the rotation direction and the number of steps.

When receiving a print command from the control unit 31 in response to the print command, the head drive unit 36 selectively applies a current to each heating element of a thermal head having a plurality of heating elements based on predetermined print data. . When the heating element heated by the current is pressed against the label PL transported by the platen roller via the ink ribbon, the portion of the label PL pressed against the heating element develops color, thereby printing information on the label PL. .

(3) Processing of Article Inspection System 1 of Embodiment Next, processing of the article inspection system 1 of this embodiment will be described with reference to FIGS.
FIG. 9 is a sequence chart executed in the article inspection system 1 of this embodiment. FIG. 10 is a flowchart executed in the information processing device 2. As shown in FIG. 11 to 14 are diagrams showing examples of screens displayed on the information processing device 2, respectively.

(3-1) Processing until Acquisition of Scan Data First, processing until the information processing apparatus 2 acquires scan data from the reader 4 will be described with reference to the sequence chart of FIG.
In this exemplary process, the two-dimensional code 10 attached to each of 40,000 articles P is inspected in the article inspection system 1 of this embodiment. 40,000 articles P are set in the case 6 by 50 for inspection. That is, as shown in FIG. 5, 50 articles P are divided into 50 sections M (10 vertical×5 horizontal) such that the two-dimensional code 10 attached to each article P faces the front surface of the case 6. 1,1) to M(10,5).

The inspection operator (hereinafter referred to as "user") causes the barcode scanner 5 to scan the barcode bc of the delivery slip V (step S10). Then, the barcode scanner 5 transmits the order data read from the barcode bc to the information processing device 2 (step S12). The order data includes the order number and the total number of articles P.

When the information processing device 2 receives the order data, it displays an inspection start screen including the order number and the total number of articles P contained in the order data, and the operator code (step S14).
A screen G1 in FIG. 11 is an example of an examination start screen. It should be noted that the worker code on the inspection start screen G1, which is identification information for specifying the user who is the worker, is pre-registered in the information processing device 2. FIG. The registered worker code is referenced and reflected on the inspection start screen G1. The inspection start screen G1 includes a start button bs for starting the inspection.

When the start button bs is operated (that is, a start instruction is given) on the inspection start screen G1 (step S16: YES), the information processing device 2 uses the order number included in the order data received in step S12 as a key. The order management data is searched to determine whether or not the order number is included in the order management data (step S18). Arrangement management data (see FIG. 8) is stored in the storage 22 . If the order number is not included in the order management data (step S18: NO), it is not subject to inspection, so an error display process is performed and the process ends (step S20).

If the order number is included in the order management data (step S18: YES), the information processing device 2 displays the inspection screen (step S22). A screen G2 in FIG. 12 is an example of an inspection screen.
As shown in FIG. 12, the inspection screen G2 includes an inspection result display area 70, an inspection object display area 71, and an inspection progress display area 72. FIG.

The inspection result display area 70 includes 50 matrix-like sections m(1,1) to m(10,5) provided corresponding to the layout of a plurality of sections of the case 6 in which the articles P are actually arranged. )including. In other words, the 50 sections m(1,1) to m(10,5) of the test result display area 70 correspond to the 50 sections M(1,1) to M(1,1) to M(10×5) of the case 6, respectively. (10, 5) (see FIG. 4).

The inspection object display area 71 is an area for displaying an inspection object. In the example of this embodiment, the worker code, the order number received in step S12, and the data in the order management data corresponding to the order number (that is, the product number data and the case unit quantity data) are included.
The inspection progress display area 72 includes a bar-shaped indicator that indicates the progress of the inspection of 40,000 articles P. As shown in FIG. As described above, 50 out of 40,000 articles P are inspected, so the position indicated by the indicator changes every time 50 articles P are inspected.

As shown in FIG. 12, the inspection screen G2 includes a shooting button b1, a next button b2, an issue button b3, and a forced termination button b4.
The shooting button b1 is a button for instructing the reader 4 to scan. The next button b2 is a button for proceeding to inspection of the next 50 articles P. As shown in FIG. The issue button b3 is a button for instructing the printer 3 to issue the label PL. The forced end button b4 is a button for forcibly ending the inspection of the article P in the middle.

When the photographing button b1 is operated on the inspection screen G2 (step S24: YES), the information processing device 2 transmits a scan instruction to the reader 4 (step S26). The scanning instruction includes a shooting range number.
Upon receiving the scan instruction, the reader 4 switches the imaging range according to the size of the front surface of the case 6 based on the imaging range number included in the scan instruction, acquires an image of the front surface of the case 6, and executes reading processing. (Step S28), scan data is generated. As shown in FIG. 7, the scan data includes the reading result for each section of case 6 included in the front image of case 6. FIG. The reader 4 transmits the scan data to the information processing device 2 (step S30).
The information processing device 2 that has received the scan data executes data processing on the scan data, which will be detailed in the flowchart of FIG. 10 (step S32).

(3-2) Data Processing for Scan Data Next, the detailed processing of data processing for scan data (step S32) will be described with reference to the flowchart of FIG.
Referring to FIG. 10, based on the scan data received from the reader 4, the information processing device 2 determines whether the read result is normal or error for each of the 50 sections (step S300). Determination of normality or error of the read result is as follows, for example.

If the read data and matching level data do not exist or are invalid values, it is determined that reading of the two-dimensional code 10 has failed, and that the read result is an error (error type E1).
If any of the order number, case unit quantity, or part number data included in the read data does not match the corresponding data in the order management data, or the manufacturing date data included in the read data does not match. If the date and time managed by the inspection program is not within the past one month, the read result is determined to be an error (error type E3) assuming that the read data is not the expected data.
If the value of the matching level included in the read data is equal to or less than a predetermined value (80, for example), the read result is determined to be an error (error type E2), although the error type is not E3.
If none of the error types E1 to E3 apply, the read result is determined to be normal.

It is preferable that the predetermined value, which is the matching level threshold for judging that the error type is E2, can be set or changed based on the user's operation input. Thereby, the user can set the predetermined value to an appropriate value according to the purpose of use of the article P. FIG. For example, if the article P is a medicine, high reading accuracy is required, so the predetermined value is set high, and if the article P is something other than medicine, the predetermined value is set low to improve the yield. It is possible to

In step S300, when the reading results of all the 50 sections are normal (step S302: NO), the information processing device 2 displays an OK screen (step S304).

A screen G3 in FIG. 13 is an example of an OK screen. The OK screen G3 in FIG. 13 includes an overall result display area 73. FIG. The overall result display area 73 is an area for displaying the overall inspection results of the 50 articles P to be inspected once. In the overall result display area 73, the number of sections for which the reading result is normal ("50" in FIG. 13), which is the number of sections for which the reading result is normal, and the number of sections for which the reading result is erroneous, which is the number of NG (in FIG. 13, "0") and the highest, lowest, and average scores as statistics for the 50 matching levels. Displaying matching level statistics allows the user to grasp the overall level of reading quality.
Displaying the highest score, the lowest score, and the average score as the statistical values of the matching level is merely an example, and the statistical values are not limited to these values. Another statistic may be the standard deviation of matching levels.
Nothing is displayed in each section of the inspection result display area 70 on the OK screen G3 of FIG.

On the OK screen G3, the next button b2 is in an active state, and it is possible to proceed to the next 50 inspections. Here, when the user operates the next button b2, the information processing device 2 updates the number of inspected articles P (cumulative number) (step S308), and changes the relationship between the cumulative number and the total number of articles P to be inspected. Based on this, the indicator in the inspection progress display area 72 is updated. In the example of this embodiment, the cumulative number processing is a process of adding the value of the cumulative number to the value before processing by the number of valid image files (usually 50) included in the scan data. A valid image file means a file that contains some image regardless of the reading result. For example, if there are no items placed in the parcel, no valid image file will be obtained.

If the cumulative number does not exceed the total number (step S310: NO), it means that the inspection of all articles P has not been completed, so the process returns to step S22 in FIG. 9 to display the inspection screen again. In this inspection screen, the indicators in the inspection progress display area 72 are updated. Here, the user newly arranges 50 articles P to be inspected next out of the 40,000 articles P in the case 6, and operates the photographing button b1, thereby performing step S26 onward in FIG. 9 again. is processed.

In step S300, if even one of the 50 sections has an error in the reading result (step S302: YES), the information processing apparatus 2 displays an error screen (step S312).
Screen G4 in FIG. 14 is an example of an error screen. The error screen G4 of FIG. 14 includes an overall result display area 73 as well as an error detail display area 74, like the OK screen. The error details display area 74 is an area for displaying the details of the error.

As shown in the overall result display area 73 of the error screen G4, the error screen G4 is an example in which the number of NGs (the number of sections where the reading result is an error) is four.
The error detail display area 74 shows the four sections M(10,1), M(4,2), M(10,3), M(2,5) of case 6 where the read result is determined to be an error. , the error type and matching level value are displayed in association with each other. By displaying the value of the matching level for each section in Case 6 where the reading result is determined to be an error, the user can see how poorly the article P arranged in each section determined to be erroneous is compared with the two-dimensional code 10. The degree can be grasped quantitatively.

In the inspection result display area 70 of the error screen G4, sections m( 10, 1), m(4, 2), m(10, 3), and m(2, 5) show an example of displaying the error type. In the example shown in FIG. 14, for error types E1, E2, and E3, the character strings "wrong item", "unread", and "low score" are displayed in the corresponding sections, respectively.
Unlike the example of FIG. 14, a character string indicating an error may simply be displayed without displaying the contents of the error type in the corresponding section, but by displaying the error type in the corresponding section, There is an advantage that the user can immediately visually recognize the number and frequency of each error type.

The issue button b3 is active on the error screen G4. Here, when the user operates the issue button b3 (step S314: issue), the information processing device 2 transmits a label issue instruction to the printer 3 (step S316), and the label PL corresponding to the article P whose reading result is an error. , to control the printer 3 to issue Preferably, the information processing device 2 controls the printer 3 to issue the number of labels PL corresponding to the NG number, whereby all the labels corresponding to the NG number are printed in one operation.

After, for example, four labels PL are continuously issued in step S316, the user selects sections M(10,1), M(4,2), M(10,3), M(2,5) of case 6. ) are replaced with four newly issued labels PL. If the error is caused by the print quality of the two-dimensional code 10, it is expected that the reading result will be normalized by replacing the label PL with a new one.
As shown in the flowchart of FIG. 10, the information processing device 2 returns to step S22 of FIG. 9 after step S316 to display the inspection screen. Therefore, the user performs the process of inspecting the 50 articles P after the re-labeling again (step S24: YES). The processing of steps S22 to S32 in FIG. 9 is repeated until all the reading results for the labels PL of the 50 articles P are normal.

In the processing example of the article inspection system 1 of the present embodiment, the case where the inspection of 40,000 articles is performed by arranging 50 articles (articles that can be photographed at once) in a case is shown. In this example, the inspection of 40,000 items is completed when the OK screen is displayed 800 times.
Unlike the above example, if the total number of items to be inspected is not divisible by the number of items that can be photographed at one time, the final inspection will be for fractional items (less than 50 in the above example). will be placed and inspected. In that case, it is preferable to automatically determine fractions. For example, after step S300, the cumulative number is updated, and it is determined whether or not the updated cumulative number matches the total number. In the final fractional inspection, only the fractional sections are subjected to the processing from step S302.

As described above, according to the article inspection system 1 of the present embodiment, when inspecting a plurality of articles, the plurality of articles are arranged according to a predetermined arrangement rule, and the labels affixed to the plurality of articles are inspected. 2D code 10 is read by the reader 4 . In the article inspection system 1, a plurality of sections are displayed, and the plurality of sections are divided in association with positions where a plurality of articles are arranged. The plurality of sections are displayed so that the section corresponding to the article for which the reading result by the reader 4 is erroneous can be identified.
Therefore, it is possible to easily identify an article with an error in the reading result from a plurality of articles to which the two-dimensional code 10 as identification information is attached.

Although the embodiments of the article inspection system and article inspection method of the present invention have been described above, the present invention is not limited to the above embodiments. Also, the above embodiments can be modified and modified in various ways without departing from the gist of the present invention.
For example, the article inspection system 1 of the present embodiment uses the barcode scanner 5 to transmit the order data from the barcode scanner 5 to the information processing device 2, but this is not the only option. In other words, the article inspection system 1 does not have to include the barcode scanner 5 . In that case, the information processing device 2 is configured to obtain the order number and total number data in FIG. may

In the above-described embodiment, the example in which the identification information is attached to the article by attaching the label PL on which the two-dimensional code 10 as the identification information is printed to the article P has been described, but this is not the only option. The two-dimensional code 10 may be printed directly on the article P without going through the label PL.
In the above-described embodiment, as shown in FIG. 4, an arrangement rule is illustrated in which a plurality of articles are arranged in a matrix, but the arrangement rule is not limited to that. For example, the shape of the partition frame of the case does not have to be rectangular, and can take various forms. In that case, the number of articles arranged in each column may not be the same, and the number of articles arranged in each row may not be the same.

DESCRIPTION OF SYMBOLS 1... Article inspection system 2... Information processing apparatus 3... Printer 4... Reader 41... Control part 42... Imaging part 43... Communication part 5... Bar code scanner 51... Control part 52... Reading part 53... Communication part 6... Case 61... Outer frame 62 Division frame 10 Two-dimensional code 21 Control section 22 Storage 23 Operation input section 24 Display section 25 Communication section 31 Control section 32 Storage 33 Operation input section 34 Display section 35 Motor driving unit 36 Head driving unit 37 Communication unit P Goods V Delivery slip PL Label As Adhesive surface Ps Print surface M, m Section L1, L2 Virtual line G1 to G4 Screen 70 Inspection Result display area 71 Inspection target display area 72 Inspection progress display area 73 Overall result display area 74 Error detail display area bs, b1 to b4 Button bc Barcode

Claims (7)

An article inspection system for inspecting a plurality of articles attached with identification information and arranged according to a predetermined arrangement rule,
a reader that simultaneously reads the identification information displayed on each of the plurality of articles;
a display on which the results read by the reader are displayed;
Control to display the plurality of sections divided in correspondence with the positions where the plurality of articles are arranged on the display unit so that the section corresponding to the article whose reading result by the reader is erroneous can be identified. Department and
with
The control unit determines whether the error type of the article for which the reading result by the reader is an error is an error type indicating that the identification information cannot be read by the reader, or the degree of collation of the reading of the identification information by the reader is if at least one of the error types indicating that the error is below a predetermined value is a first error type, the first error type is identifiably displayed in a section corresponding to the error article;
Goods inspection system. An article inspection system for inspecting a plurality of articles attached with identification information and arranged according to a predetermined arrangement rule,
a reader that simultaneously reads the identification information displayed on each of the plurality of articles;
a display on which the results read by the reader are displayed;
Control to display the plurality of sections divided in correspondence with the positions where the plurality of articles are arranged on the display unit so that the section corresponding to the article whose reading result by the reader is erroneous can be identified. Department and
with
If the error type of the article for which the reading result by the reader is an error is a second error type indicating that the identification information read by the reader is not predetermined information, the control unit determines that the article is an error. Identifiably displaying the second error type in a section corresponding to the article;
Goods inspection system. The control unit sets the predetermined value based on an operation input by a user.
An article inspection system according to claim 1 . The control unit displays a statistic value of a matching degree of reading of the identification information by the reader for the plurality of articles.
An article inspection system according to claim 1 . A print medium on which the identification information is printed is attached to the surface of the article,
An article inspection system according to any one of claims 1 to 4 . A printer that issues the print medium,
The control unit controls the printer so as to issue a print medium on which identification information corresponding to an article whose read result by the reader is an error is printed.
An article inspection system according to claim 5 . An article inspection method for inspecting a plurality of articles attached with identification information and arranged according to a predetermined arrangement rule,
a reader simultaneously reading the identification information displayed on each of the plurality of articles;
causing the display device to display the plurality of sections divided in correspondence with the positions where the plurality of articles are arranged, so that the section corresponding to the article whose reading result by the reader is erroneous can be identified;
An article inspection method,
The error type of the article for which the read result by the reader is an error is an error type indicating that the identification information cannot be read by the reader, or the verification degree of the identification information read by the reader is a predetermined value or less. If at least one of the error types indicating that the first error type is the first error type, the first error type is identifiably displayed in the section corresponding to the article that is the error.
Goods inspection method .

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