KR102515258B1 - Method for automatically inspecting products using video information - Google Patents

Abstract

The present invention includes the steps of scanning, by a barcode scanner, a first barcode printed on an order invoice; acquiring an image by at least one camera photographing at least one product seated on an inspection shelf; A, extracting and reading at least one second barcode included in the image, identifying a product according to the second barcode, and calculating the quantity of the identified product; It provides an automatic product inspection method using image information, comprising the step of determining whether the first barcode corresponds to the ordered product and the order quantity.

Description

Product automatic inspection method using video information {METHOD FOR AUTOMATICALLY INSPECTING PRODUCTS USING VIDEO INFORMATION}

The present invention relates to an automatic product inspection method using image information, and more particularly, automatically inspects whether products for each order are prepared or prepared according to the order details on the order instructions in distribution and distribution warehouses using image information. It relates to an automatic product inspection method using image information for

Currently, in distribution and distribution warehouses, operations such as order-specific picking and packing are performed according to orders placed from stores and the like.

Large logistics companies use DPS (digital picking system), which can quickly and accurately pick products by digitizing and automating most of the processes, Recently, it has been in the spotlight because it can increase the efficiency.

However, for small and medium-sized logistics companies, it is expensive to build a DPS, and operations such as pollination, picking, and packing depend on manpower. Among them, although it is important to inspect whether the products on the order instructions are properly prepared or prepared, the efficiency of the work greatly depends on the expertise of manpower because the inspection work for the order is performed by scanning the barcode for each product. there is a problem

Therefore, there is a need for an automation technology capable of confirming whether a computerized order and picked products match in a small or medium-sized logistics company.

KR 10-1366556 B1 KR 10-2011-0058523 A1

The present invention provides an automatic product inspection method using image information that can increase work efficiency and minimize human error by automatically checking whether the ordered product and order quantity according to the order instruction match the products prepared on the inspection shelf. want to do

In order to solve the above problems, the present invention scans a first barcode printed on an order instruction by a barcode scanner, and at least one camera photographs at least one product placed on an inspection shelf to obtain an image obtaining, by a controller, extracting and reading at least one second barcode included in the image, identifying a product according to the second barcode, and calculating the quantity of the identified product; , determining whether the calculated product and quantity match the ordered product and order quantity according to the first barcode.

According to an embodiment, the control unit, using a communication unit - connected communicatively with an external order management server - receiving the order product and the order quantity according to the scanned first barcode from the order management server Further, the control unit may check whether the order is valid or whether the order is changed.

According to an embodiment, the controller may further include generating an alarm signal when the product and quantity calculated according to the second barcode do not match the ordered product and order quantity according to the first barcode.

According to an embodiment, the display unit further includes outputting the order product and the order quantity in the order instruction according to the first barcode on a screen, and correspondingly outputting the quantity of the product according to the second barcode. can do.

According to an embodiment, the control unit recognizing the total number of products placed on the inspection shelf and calculating the number, and the control unit identifies second barcodes of the products placed on the inspection shelf a step of reading, by the control unit, driving a first cam device provided on one side of the inspection shelf if there is an unidentified product, and repetitively reciprocating the inspection shelf along any one horizontal direction; The control unit may further include identifying second barcodes of products placed on the inspection shelf again, and determining whether the barcodes match the total number of products.

According to one embodiment, the step of repeatedly moving the inspection shelf along one horizontal direction by the control unit driving the first cam device to reciprocate, the control unit is located on one bottom surface of the inspection shelf, The second cam device for upwardly moving one side of the inspection shelf and the first cam device may be combined and driven.

According to an embodiment, the control unit divides the inspection shelf into regions based on dividing lines drawn on the seating surface, and simultaneously identifies and reads first barcodes of a plurality of order instructions seated in each of the divided regions. identifying and reading, by the control unit, a second barcode of the product for each of a plurality of product groups seated in each of the divided areas; The method may further include determining whether the number of products and ordered products and the number of products identified and read according to the second barcode match.

In addition, the present invention provides a barcode scanner for scanning a first barcode printed on an order instruction sheet, at least one camera for acquiring an image by photographing at least one product placed on an inspection shelf, and the above After extracting and reading at least one second barcode included in the image, identifying a product according to the second barcode and calculating the quantity of the identified product, the calculated product and quantity are ordered according to the first barcode. Provided is an automatic product inspection device using image information, characterized in that it includes a control unit for determining whether the product and the order quantity match.

According to an embodiment, further comprising a communication unit for communicatively connecting with an external order management server, wherein the control unit receives an order product and an order quantity according to the scanned first barcode from the order management server, It is possible to check whether the order is valid or whether the order has been changed.

According to an embodiment, the controller may generate an alarm signal when the product and quantity calculated according to the second barcode do not match the ordered product and the order quantity according to the first barcode.

According to an embodiment, the display unit may further include a display unit that outputs ordered products and order quantity according to the order instruction according to the first barcode, and correspondingly outputs the quantity of products according to the second barcode to a screen.

According to an embodiment, the automatic product inspection device may be movable by further including a rechargeable battery supplying power to the barcode scanner, the at least one camera, and the control unit.

According to an embodiment, a first cam device provided on one side of the inspection shelf to reciprocally reciprocate the inspection shelf along any one horizontal direction, wherein the control unit first places the inspection shelf on the inspection shelf. After calculating the total number of products placed on the inspection shelf, the second barcodes of the products seated on the inspection shelf are identified, and if there is an unidentified product, the first cam device is driven, and the product is placed on the inspection shelf again. By identifying the second barcode of the product, it is possible to determine whether it matches the total number of products.

According to an embodiment, the second cam device is located on a lower surface of one side of the inspection shelf and moves one side of the inspection shelf up, and the control unit controls the second cam device of the products seated on the inspection shelf. Barcodes are identified, and if there are unidentified products, the first and second cam devices are driven, and then the second barcodes of the products placed on the inspection shelf are identified again to determine whether they match the total number of products. can judge

According to an embodiment, the control unit divides the inspection shelf into regions based on dividing lines drawn on the seating surface, and simultaneously identifies and reads first barcodes of a plurality of order instructions seated in each of the divided regions. and identifies and reads the second barcode of the product for each of the plurality of product groups seated in each of the divided areas, and then according to the order product and order quantity according to the first barcode and the second barcode for each of the divided areas. It is possible to determine whether the identified and read product and the quantity of the product match.

According to one embodiment of the present invention, it is possible to increase work efficiency and minimize human error by automatically checking whether the order product and order quantity according to the order instruction form match the products prepared on the inspection shelf.

In addition, by implementing a movable inspection shelf for product inspection, it is possible to escape from space limitations on the automatic product inspection device.

In addition, even if barcodes of products placed on the inspection shelf do not face the camera lens, the inspection shelf can be reciprocated to recognize products on the inspection shelf without omission.

In addition, by placing the order instructions on the inspection shelf, the order instructions can also be recognized, and furthermore, multiple order instructions and corresponding product groups are identified at the same time, and product inspection is performed on multiple order instructions and multiple product groups at the same time. can do

1 is an exemplary external view of an automatic product inspection device according to an embodiment of the present invention.
2 is an exemplary view of an order instruction according to an embodiment of the present invention.
3 is a configuration diagram of an automatic product inspection device according to an embodiment of the present invention.
4 is a view showing a driving device coupled to an inspection shelf according to an embodiment of the present invention.
5 is a view showing a state in which a plurality of areas are formed on an inspection shelf according to an embodiment of the present invention.
6 is a step-by-step flowchart of an automatic product inspection method according to an embodiment of the present invention.
7 is a flow chart of operation steps of an automatic product inspection device when an unidentified product exists according to an embodiment of the present invention.
8 is a step-by-step flowchart of an automatic product inspection method capable of reading a plurality of order instructions and inspecting a plurality of groups of products according to an embodiment of the present invention.

Hereinafter, the embodiments disclosed in this specification will be described in detail with reference to the accompanying drawings, but the same or similar elements are given the same reference numerals regardless of reference numerals, and redundant description thereof will be omitted. The suffixes "module" and "unit" for components used in the following description are given or used together in consideration of ease of writing the specification, and do not have meanings or roles that are distinct from each other by themselves. In addition, in describing the embodiments disclosed in this specification, if it is determined that a detailed description of a related known technology may obscure the gist of the embodiment disclosed in this specification, the detailed description thereof will be omitted. In addition, the accompanying drawings are only for easy understanding of the embodiments disclosed in this specification, the technical idea disclosed in this specification is not limited by the accompanying drawings, and all changes included in the spirit and technical scope of the present invention , it should be understood to include equivalents or substitutes.

It is understood that when an element is referred to as being "connected" or "connected" to another element, it may be directly connected or connected to the other element, but other elements may exist in the middle. It should be. On the other hand, when an element is referred to as “directly connected” or “directly connected” to another element, it should be understood that no other element exists in the middle.

Singular expressions include plural expressions unless the context clearly dictates otherwise.

In this specification, terms such as "comprise" or "having" are intended to indicate that there is a feature, number, step, operation, component, part, or combination thereof described in the specification, but one or more other features It should be understood that the presence or addition of numbers, steps, operations, components, parts, or combinations thereof is not precluded.

Automatic Product Inspection System

1 is an external view of an automatic product inspection device according to an embodiment of the present invention, and FIG. 3 is a configuration diagram of the automatic product inspection device according to an embodiment of the present invention.

As shown in FIGS. 1 and 3, the automatic product inspection device 100 according to an embodiment of the present invention includes a barcode scanner 120 that scans a first barcode b1 printed on an order instruction sheet 20 and , At least one camera 130, 131 to 132 for acquiring an image by taking a picture of at least one product 10 seated on the inspection shelf 101, and at least one second included in the image After extracting the barcode (b2), identifying the product according to the second barcode (b2) and calculating the quantity of the identified product, the calculated product and quantity are the order product and the order quantity according to the first barcode (b1) Including the control unit 110 that determines whether or not it matches, automatically checks whether the order product and order quantity according to the order instruction sheet 20 match the products 10 prepared on the inspection shelf 101 to improve work efficiency and minimize human error.

However, since the components shown in FIGS. 1 and 3 are not essential, it is of course possible to implement an automatic product inspection device having more or fewer components.

Hereinafter, each component will be reviewed.

As shown in FIG. 1, the automatic product inspection device 100 according to an embodiment of the present invention, for example, has a rack shape having an accommodation space S in which products can be seated and accommodated therein. can have That is, the automatic product inspection device 100 may have an accommodation space S in which at least one product 10 or a product tray 102 containing a product can be accommodated on the inspection shelf 101 .

At least one camera 130, 131 to 132 for taking a picture of at least one product 10 seated on the inspection shelf 101 may be provided around the accommodation space S, and the control unit 110 ) can recognize the products 10 seated on the inspection shelf 101 and calculate the number thereof using the images taken by the cameras 130 and 131 to 132 . A detailed description of this will be described later.

This automatic product inspection device 100 includes at least one wheel at the bottom so that small and medium-sized logistics companies can move the product inspection device 100 as needed and inspect products without being restricted by space. Thus, it is preferable to be implemented to be movable.

The barcode scanner 120 is a means for optically reading the first barcode b1 printed on the order instruction sheet 20, and the controller 110 converts the information included therein from the barcode read through the barcode scanner 120. can be obtained The type of the barcode scanner 120 is not particularly limited as long as it can read the first barcode b1.

Here, the first barcode b1 is a one-dimensional barcode as well as a two-dimensional QR code, Data Matrix, Maxi code, PDF-417, etc. It can take a variety of forms. Of course, the second barcode b2 displayed on the outer surface of the product 10 to be described below is not limited to a specific type and may be of various types.

The order instruction sheet 20 on which the first barcode b1 is printed may include order information including a list of products to be picked and/or packed (including the quantity of products). Here, the order information may include products and quantities ordered by the orderer.

As a result, the order instruction 20 includes order information, but specifically, as shown in FIG. Information such as product name, product code, option, quantity, selling price, product purchase price, and shipping cost may be included.

The controller 110 may extract order information included in the order instruction sheet 20 using the first barcode b1 read through the barcode scanner 120 .

According to an embodiment, when the first barcode (b1) contains the order information, the controller 110 may extract the order information from the first barcode (b1) read through the barcode scanner 120, According to another embodiment, when the first barcode (b1) is in a one-dimensional form and the capacity that can be contained in the barcode is small, the control unit 110 sets the identification code according to the first barcode (b1) as a factor, Corresponding order information may be extracted from information pre-stored in a storage unit (not shown).

In the product automatic inspection device 100 according to another embodiment, the control unit 110 uses the communication unit 140 communicatively connected to the remote order management server 200 so that the control unit 110 receives an identification code according to the first barcode b1. An order information reception request (ack) is made with a factor, and order information corresponding to the identification code can be received as a response (request) thereto. Here, the order management server 200 stores the order information, but the order status or order information may be changed by the orderer or order manager.

Therefore, when receiving order information from the order management server 200, the control unit 110 checks whether the current order is valid according to the order status, so that workers do not unnecessarily perform picking and packing operations. In addition, the current order contents (target product or product quantity) can be grasped in real time so that the intention of the orderer can be reflected immediately.

On the other hand, as described above, at least one camera 130, 131 for taking a picture of at least one product 10 seated on the inspection shelf 101 around the receiving space S as a subject ~ 132) can be provided.

The number and location of the cameras 130, 131 to 132 are not particularly limited, but to capture the second barcode b2 displayed on at least one product 20 placed in various directions on the inspection shelf 101. It is preferable that they are plural provided at different positions.

At this time, a plurality of cameras (130, 131 ~ 132), as shown in Figure 1, may be provided in the upper portion of the receiving space (S), but is not limited to this, at least one of the cameras (130, 131 ~ 132) may be provided below the accommodation space (S). In this case, the lower surface of the inspection shelf 101 and/or the product tray 102 is made of a transparent material, and the inspection shelf 101 and/or the product tray 102 is inspected through the cameras 130 and 131 to 132 provided at the lower portion. It is desirable to be able to secure an image of the bottom surface.

The controller 110 may extract and read the second barcode b2 included in the image using at least one captured image obtained through the camera 130 or 131 to 132 .

The shooting area of the cameras 130 and 131 to 132 may correspond to the inspection shelf 101, but when the shooting area of the cameras 130 and 131 to 132 includes the inspection shelf 101, the control unit 110 controls the camera ( 130, 131 to 132), it is preferable to crop only the region corresponding to the inspection shelf 101 from among the images taken, and extract the second barcode b2 from the cropped corresponding region.

The controller 110 is a means for controlling the overall operation of the automatic product inspection device 100, and is capable of executing various application programs in conjunction with each component of the automatic product inspection device 100 and performing operations related thereto. can That is, the controller 110 controls the driving of the automatic product inspection device 100 by processing signals or data input and output through the components of the automatic product inspection device 100 or by running an application program stored in the storage unit. can The controller 110 may control at least some of the components of the automatic product inspection device 100 to drive an application program stored in the storage unit.

Specifically, the controller 110 may perform image processing on images captured by the cameras 130 and 131 to 132 to extract and read at least one second barcode b2 from the captured images. Accordingly, the product is identified as to which product is seated on the inspection shelf 101, the quantity of the identified product is calculated, and then the identified product and its quantity are determined by using the second barcode (b2) as described above. It can be determined whether the order information according to the barcode (b1), that is, the order product and the order quantity are identical.

At this time, the controller 110 generates an alarm signal when the product and quantity identified and calculated according to the second barcode (b2) do not match the ordered product and order quantity according to the first barcode (b1), and the display unit 150 ), or by outputting sound or sound through a speaker (not shown), it is possible to warn workers to correct human errors.

Of course, to improve work efficiency of workers, the display unit 150 can output the order product and order quantity on the order instruction according to the first barcode (b1) read through the barcode scanner 120, and the camera Products prepared on the inspection shelf 101 according to the second barcode b2 read through (130, 131 to 132) and their quantity may be output, and whether or not they match may be displayed on a screen.

On the other hand, as shown in FIG. 3, each component (bar code) of the automatic product inspection device 100 can be implemented to be movable by a worker according to an embodiment of the present invention. The scanner 120, the cameras 130, 131 to 132, the controller 110, etc.) may include a battery 160 for supplying operating power necessary for overall operation, wherein the battery 160 is a battery here. is preferably a rechargeable secondary battery.

In addition, the communication unit 140 is for performing communication with the external order management server 200, and the communication method may be wired or wireless. For example, the communication method is WLAN (Wireless LAN), WiFi (Wireless Fidelity) Direct, DLNA (Digital Living Network Alliance), Wibro (Wireless broadband), Wimax (World Interoperability for Microwave Access), HSDPA (High Speed Downlink Packet Access), etc. wireless Internet or mobile communication methods, or radio frequency (RF) communication , Bluetooth, infrared communication (IrDA), and Zigbee may be one of short-range wireless communication methods.

In addition, the storage unit (not shown) may store a control program for controlling or driving the automatic product inspection device 100 and data thereof, and according to a specific embodiment, the first barcode b1 and corresponding order information. can be saved.

The storage unit may mainly use non-volatile memory, where non-volatile memory (NVM, NVRAM) is a storage device capable of continuously maintaining stored information even when power is not supplied, for example, ROM , flash memory, magnetic computer storage devices (for example, hard disks, diskette drives, magnetic tapes), optical disk drives, magnetic RAMs, PRAMs, and the like.

A non-explained numeral 170 in FIG. 1 is a user input device for the controller 110, which may be, for example, a keyboard, but if the controller 110 receives various inputs from a worker, the type is not limited.

Meanwhile, FIG. 4 is a view showing a driving device coupled to an inspection shelf according to an embodiment of the present invention.

As shown in FIG. 4, the automatic product inspection device 100 according to an embodiment of the present invention is provided on one side of the inspection shelf 101, and repeats the inspection shelf 101 along one horizontal direction to reciprocate. A first cam device 1011 for moving may be included.

The first cam device 1011 can use a cam to reciprocate rotational motion by a driving device such as a motor along any one horizontal direction of the inspection shelf 101 . In this case, the cam is not particularly limited, but may be, for example, a swash plate cam, a conical cam, a heart cam, or a groove cam.

The controller 110 may change the pose of at least one product 10 seated on the inspection shelf 101 using the first cam device 1011 . The control unit 110 may calculate the total number of products by first extracting only the edges of the products placed on the inspection shelf 101 from the images taken by the cameras 130 and 131 to 132, and then calculating the number of products on the inspection shelf. Only the second barcodes (b2) of products placed on 101 can be identified or read. If the number of identified second barcodes (b2) is less than the total number of products, that is, if unidentified products exist, the first cam device 1011 can be driven, and after driving the first cam device 1011 By identifying the second barcode b2 again, it is possible to determine whether it matches the total number of products.

At this time, the process of driving the first cam device 1011 and identifying the second barcode (b2) is repeated only a preset number of times (eg, 3 times) so as not to be repeated infinitely, and in case of mismatch, an alarm signal is generated to display the screen. And/or it is preferable to output it as a sound or the like.

On the other hand, the posture of the product 10 seated on the inspection shelf 101 may not be changed by driving the first cam device 1011 according to the seating surface of the product 10 seated on the inspection shelf 101. To this end, a plurality of protruding protrusions are formed on the product seating surface of the inspection shelf 101 or the product seating surface of the product tray 102, and when the inspection shelf 101 moves in any one horizontal direction, thereon The seated product 10 may be induced to change its posture by rolling the protrusion as a locking jaw.

According to another embodiment of the present invention, a second cam device 1012 located on the lower surface of one side of the inspection shelf 101 may be included to elevate the one side of the inspection shelf 101 .

The inspection shelf 101 can reciprocate in either horizontal direction by the first cam device 1011, but uses the second cam device 1012 to more smoothly change the posture of the product 10 seated thereon. Thus, one side of the inspection shelf 101 can be moved up and down.

Like the second cam device 1012, the type is not limited, and the inspection shelf 101 is shaken or shaken horizontally by the driving combination of the first and second cam devices 1011 and 1012, so that the inspection shelf ( 101), it is possible to easily change the posture of the product 10 seated on it.

On the other hand, as described above, the order instruction 20 can be read by the barcode scanner 120, but the operator inserts the first barcode b1 of the order instruction 20 into the barcode scanner 120 every time a product is inspected. There is a hassle to get close.

Therefore, according to another embodiment of the present invention, when at least one order instruction sheet 20 is seated on the inspection shelf 101, the control unit 110 uses the cameras 130 and 131 to 132 to 1 barcode (b1) can be identified and read, and then the worker places the product 10 on the inspection shelf 101, and the control unit 110 uses the cameras 130 and 131 to 132 to view the product The second barcode (b2) of (10) can be identified and read.

Using this, a plurality of regions may be formed on the inspection shelf 101 as shown in FIG. 5 according to another embodiment of the present invention.

The inspection shelf 101 may be divided into areas based on the dividing line l drawn on the seating surface, and the control unit 110 may place orders for each area from images obtained by the cameras 130 and 131 to 132. The first barcodes b11 and b12 on the instructions 21 and 22 can be separately identified and read at the same time.

Here, the seating surface of the inspection shelf 101 may be divided based on the dividing line (l), but is not limited thereto, and the area is set as a boundary line of a polygon such as a rectangle or set as a color painted on the seating surface. It can be. That is, the controller 110 sets a plurality of regions divided by the identified dividing line l using the cameras 130 and 131 to 132, sets a plurality of regions by the identified polygonal boundary line, or sets the identified color A plurality of areas can be set by

Next, after the operator places product groups (or product groups) for each area set above on the inspection shelf 101 (see FIG. 5(b)), the control unit responds to a user input through the input device 170. 110 acquires images by cameras 130 and 131 to 132, and second barcodes b21/b22a and b22b of each product 11/12a and 12b for each product group for each of the plurality of regions set above from the obtained image ) can be identified and read. For example, as shown in the drawing, a second barcode b21 of a product placed in the left area based on the dividing line l and a second barcode b22a of a product placed in the right area based on the dividing line l , b22b) can be identified and read simultaneously.

As a result, the control unit 110 provides the order information according to the first barcodes b11 and b12 on the identified and read order instructions 21 and 22 for each area set on the inspection shelf 101, and each area for each area. It is possible to compare order products and order quantities calculated according to the second barcodes b21 / b22a and b22b of the settled products 11 / 12a and 12b, and determine whether they match. As described above, an alarm signal may be generated in case of inconsistency and output to a screen or sound.

Meanwhile, according to another embodiment of the present invention, the partition line (l), the polygonal boundary line, the color surface, etc. may be formed on the seating surface of the inspection shelf 101, but is not limited thereto, and the product tray 102 Of course, it may be formed on the seating surface.

Product automatic inspection method

6 is a step-by-step flowchart of an automatic product inspection method according to an embodiment of the present invention.

As shown in FIG. 6, the automatic product inspection method according to an embodiment of the present invention includes the steps of scanning the first barcode b1 printed on the order instruction sheet 20 by the barcode scanner 120 (S110); , At least one camera (130, 131 ~ 132) taking a picture of at least one product 10 seated on the inspection shelf 101 to obtain an image (S120), and the control unit 110 Extracting and reading at least one second barcode (b2) included in the image, identifying the product 10 according to the second barcode and calculating the quantity of the identified product (S130), and the controller 110 may include a step of determining whether the calculated product and quantity match the ordered product and order quantity according to the first barcode (b1) (S140).

It is possible to automatically check whether the order product and order quantity according to the order instruction sheet 20 match the products 10 prepared on the inspection shelf 101, thereby increasing work efficiency and minimizing human error.

According to an embodiment of the present invention, the control unit 110, if the product recognized using the second barcode b2 and the quantity calculated accordingly do not match the ordered product and the order quantity according to the first barcode b1, Generating an alarm signal (S150) may be further included.

Of course, on the contrary, if the product recognized using the second barcode (b2) and the quantity calculated accordingly match the order product and order quantity according to the first barcode (b1), the display is displayed so that the worker can confirm that they match. Screen output through the unit 150 or sound output through a speaker or the like can be performed (S160).

At this time, the display unit 150 outputs the order product and the order quantity on the order instruction sheet 20 according to the first barcode b1 to the screen and correspondingly outputs the quantity of the product according to the second barcode, Workers can check the product inspection process in real time.

However, each step shown in FIG. 6 is not essential, so it goes without saying that an automatic product inspection method having more steps or less steps than that can be implemented.

Meanwhile, according to an embodiment of the present invention, after the barcode scanner 120 scans the first barcode b1, the controller 110 uses the communication unit 140 to scan the first barcode b1. It may further include a step (not shown) of receiving the order product and the order quantity according to the order management server 200, through which the control unit 110 can check whether the order is valid or whether the order has been changed. .

Of course, as described above, the control unit 110 may use information contained in the first barcode b1 itself or information stored in the storage unit without using the order management server 200 .

On the other hand, Figure 7 is a flow chart for each operation step of the automatic product inspection device when an unidentified product exists according to an embodiment of the present invention.

As shown in FIG. 7 , according to an embodiment of the present invention, the control unit 110 recognizes all products placed on the inspection shelf 101 and calculates the number of them (S210), and the control unit 110 ) identifies and reads the second barcodes (b2) of the products placed on the inspection shelf 101 (S220), and the control unit 110 inspects if there is an unidentified product on the inspection shelf 101 Driving the first cam device 1011 provided on one side of the shelf 101 to repeatedly reciprocate the inspection shelf 101 along one horizontal direction (S230), and the control unit 110 inspects again The method may further include identifying and reading second barcodes b2 of products placed on the shelf 101 to determine whether or not they match the total number of products.

At this time, according to another embodiment, in step S230, the control unit 110 is located on the lower surface of one side of the inspection shelf 101, and the second cam device 1012 for upwardly moving one side of the inspection shelf 101 ) can be driven in combination with the first cam device 1011.

Meanwhile, FIG. 8 is a step-by-step flowchart of an automatic product inspection method capable of reading a plurality of order instructions and inspecting a plurality of groups of products according to an embodiment of the present invention.

As shown in FIG. 8, the control unit 110 divides the inspection shelf 101 into areas based on the dividing line l drawn on the seating surface, and a plurality of w order instructions 20 seated for each divided area. ), simultaneously identifying and reading the first barcodes (b1) of each (S310), and the controller 110 identifying and reading the second barcodes (b2) of the products for each of the plurality of product groups seated in the divided areas. In the step (S320), the control unit 110 determines the order product and the order quantity according to the first barcode (b1) for each divided area and the identified and read product and the quantity of products according to the second barcode (b2). A step of determining whether they match may be further included.

At this time, if the order product and the order quantity according to the first barcode (b1) and the product identified and read according to the second barcode (b2) and the quantity of the product do not match, generating an alarm signal (S340). can

Of course, on the contrary, if the product recognized using the second barcode (b2) and the quantity calculated accordingly match the order product and order quantity according to the first barcode (b1), the display is displayed so that the worker can confirm that they match. Screen output through the unit 150 or sound output through a speaker or the like can be performed (S350).

Since descriptions of each step included in the automatic product inspection method or the operation method of the automatic product inspection device overlap with those described above, descriptions thereof will be omitted and replaced.

computer readable recording medium

The automatic product inspection method or method of operating the automatic product inspection apparatus according to an embodiment of the present invention described above can be implemented in the form of program instructions that can be executed through various computer components and recorded on a computer-readable recording medium. there is.

The computer readable recording medium may include program instructions, data files, data structures, etc. alone or in combination. Program instructions recorded on the computer-readable recording medium may be specially designed and configured for the present invention, or may be known and usable to those skilled in the art of computer software. Examples of computer-readable recording media include magnetic media such as hard disks, floppy disks and magnetic tapes, optical recording media such as CD-ROMs and DVDs, and magneto-optical media such as floptical disks. media), and hardware devices specially configured to store and execute program instructions, such as ROM, RAM, flash memory, and the like. Examples of program instructions include high-level language codes that can be executed by a computer using an interpreter or the like as well as machine language codes such as those produced by a compiler. The hardware device may be configured to act as one or more software modules to perform processing according to the present invention and vice versa.

In the above, preferred embodiments of the present invention have been described in detail with reference to the drawings. The description of the present invention is for illustrative purposes, and those skilled in the art will understand that it can be easily modified into other specific forms without changing the technical spirit or essential features of the present invention.

Therefore, the scope of the present invention is indicated by the following claims rather than the above detailed description, and all changes or modifications derived from the meaning, scope and equivalent concept of the claims are included in the scope of the present invention. should be interpreted

10: Product 20: Ordering Instructions
100: product automatic inspection device 101: inspection shelf
1011: first cam device 1012: second cam device
102: product tray 110: control unit
120: barcode scanner 130, 131 to 132: camera
140: communication unit 150: display unit
160: battery 170: input device
180: air nozzle 200: order management server
b1: first barcode b2: second barcode

Claims (7)

scanning, by a barcode scanner, the first barcode printed on the order invoice;
obtaining an image by at least one camera taking a picture of at least one product seated on the inspection shelf;
extracting and reading, by a controller, at least one second barcode included in the image, identifying products according to the second barcode, and calculating the quantity of the identified products; and
determining, by the controller, whether the calculated product and quantity match the ordered product and the order quantity according to the first barcode;
including,
The control unit divides the inspection shelf into regions based on a division line drawn on a seating surface, and simultaneously identifies and reads first barcodes of a plurality of order instructions seated in each of the divided regions;
identifying and reading, by the controller, a second barcode of the product for each of the plurality of product groups seated in each of the divided areas;
determining, by the control unit, whether the ordered product and the order quantity according to the first barcode for each divided area match the identified and read product and quantity of products according to the second barcode; and
generating, by the control unit, an alarm signal when the product and quantity calculated according to the second barcode do not match the ordered product and order quantity according to the first barcode;
Including more,
The control unit calculates the total number of products seated on the inspection shelf, identifies second barcodes of the products seated on the inspection shelf, and if there is an unidentified product, a first cam device - the first The cam device is provided on one side of the inspection shelf, and repeatedly moves the inspection shelf back and forth along any one horizontal direction - changing the posture of the product seated on the inspection shelf by driving it;
The automatic product inspection method using image information further includes, but at least one protruding protrusion is provided on the product seating surface of the inspection shelf. According to claim 1,
receiving, by the controller, the order product and the order quantity according to the scanned first barcode from the order management server by using a communication unit - connected to an external order management server for communication;
Including more,
The automatic product inspection method using image information, characterized in that the controller checks whether the order is valid or whether the order is changed. delete According to claim 1,
displaying, by a display unit, the order product and the order quantity according to the order instruction according to the first barcode on a screen, and correspondingly outputting the quantity of the product according to the second barcode;
Product automatic inspection method using image information characterized in that it further comprises. delete delete delete

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