KR20200078300A - Method for Digital Picking and Apparatus thereof - Google Patents

Abstract

A digital picking apparatus of the present invention includes: a storage frame which has a plurality of storage shelves and in which boxes are stored in the storage shelves; a display member having a plurality of light emitting diodes installed in the storage shelves in a horizontal direction; a picking sensor part installed in at least one vertical frame and horizontal frame of the storage frame to sense products in the boxes when the products are loaded on the boxes; and a mobile terminal controlling the light number of the light emitting diodes of the display member so as to correspond to a width of the boxes stored in the storage shelves and receiving a signal detected through the picking sensor part.

Description

Method and device for digital picking {Method for Digital Picking and Apparatus thereof}

The present invention relates to a digital picking method and apparatus, and more particularly, to a digital picking method and picking apparatus that further improves the efficiency of a conventional picking operation.

In general, ordered products delivered to each store, such as a department store or convenience store, are delivered by a vehicle transportation method or the like at a delivery center, a distribution base. The products to be delivered are arranged by the vendor or producer of each product and received at the distribution center. In the distribution center, many different types are divided according to orders for each store, and each store at the destination of delivery Classified by

The goods delivered from the vendor of the goods to the delivery center (logistics center) are divided into, for example, restocking and passing through the dock, and goods for restocking are in pallet units, carton units, or pieces or balls. It is kept in the stock area.

For storage, for example, an Automated Storage/Retrieval System (AS/RS) or a forklift pallet rack is used. The goods and the like on the pallet stored in the rack shelf are taken out by the picking worker based on the shipping information, and loaded and shipped on a picking conveyor. Here, the shipping information means a shipping invoice that receives products from multiple stores and dispatches them by region and store. In other words, this is a picking list by destination.

At this time, in the case of a product such as a cosmetic product, the amount received from each store accounts for almost 95% or more in the form of a single piece in piece units, not in carton (box) or pallet units. Therefore, in a distribution center for cosmetics that delivers a small number of products of various kinds to multiple order stores, picking and packing by manual picking workers are inevitable.

As mentioned above, in order to pick and pack multi-modal small items ordered by each store in the distribution center and then pack and deliver them, it is necessary to accurately pick the corresponding products loaded in the rack's carton box for each location in the distribution center. Do.

At present, the logistics delivery center that professionally delivers a small amount of products of various kinds is picking the product from the carton box loaded in the rack of the location manually, while the picking worker checks the dispatch work instructions one by one.

When the picking is completed by hand as described above, the picking product is matched with the product of the work instruction through the inspection process (checking whether the picked product is correct and the number of ordered products) and then packing and shipping.

Therefore, in the logistics delivery center that professionally delivers small quantities of multi-species products, logistics costs increase and delivery delays frequently occur due to the complexity of the inspection process to check whether the picked products are correct for each picking and delivery destination.

To this end, a digital picking device has been conventionally disclosed to be carried by a picking worker and picking.

However, in the conventional digital picking device, it is difficult to improve the loading efficiency as the loading is carried out in a predetermined state in response to the size of the box loaded on the loading shelf.

That is, there is a problem that the space cannot be efficiently utilized when loading the box, and it is difficult to set the size or arrangement of the loading area of the loading shelf as desired, and it is difficult to improve the efficiency of the box loading process.

<Prior Literature 1>: Republic of Korea Patent Publication No. 2009-0089653 (published date: August 24, 2009)

The present invention has been devised to solve the above problems, and an object of the present invention is to provide a digital picking device and a picking method that can improve the efficiency of the picking shelf's loading space by freely adjusting and setting the box arrangement of the picking shelf. Should be

According to an embodiment of the present invention for achieving the above object, receiving a picking order to the mobile terminal; Picking up at least one target box from a loading location according to the picking order and mounting it on a load cell of the picking cart; Scanning the bar code for the target box and displaying information of the target box on a mobile terminal; Checking the weight of the target box with the load cell; Displaying a picking quantity of the target box through a display unit installed in the picking cart; A step in which a part of the display member installed in the picking cart is lit to display the picking position of the target box; Placing the target box in the picked-up position of the display member; And detecting the target box placed in the picking cart with a picking sensor unit installed in the picking cart to check the position of the picking.

The step of displaying the picking position may be that the display member of the picking cart forms a lighting pattern with a length corresponding to the width of the target box.

In the step of checking the loading position, when the target box is correctly placed on the corresponding storage shelf of the picking cart, the grid sensor may detect this and turn off the display member.

In addition, the present invention is provided with a plurality of storage shelves and a storage frame in which a box is stored in the storage shelf; A display member provided with a plurality of light emitting elements installed in the horizontal direction on the storage shelf; A picking sensor unit installed in at least one vertical frame and horizontal frame of the storage frame to detect when a product is loaded into the box; And a mobile terminal for controlling the number of lighting of the light emitting element of the display member to correspond to the width of the box stored in the storage shelf, and receiving the signal detected through the picking sensor unit to determine whether the light emitting element is turned off. There is provided a digital picking device comprising the.

The display member may be an LED bar disposed in front of the storage shelf and in which a plurality of LEDs are disposed as the light emitting element.

The picking sensor unit includes a Y-axis picking sensor unit disposed in a pair of vertical frames facing each other among the storage frames, and an X-axis picking sensor unit disposed in a pair of horizontal frames facing each other among the storage frames. can do.

According to the present invention, by executing a box arrangement program through a mobile terminal, it is possible to arrange boxes of various widths in a free pattern on the storage shelf, thereby improving the efficiency of the box arrangement, and when the product is loaded in the box, it is provided on the storage shelf. The product can be loaded according to the guidance of the displayed display member, thereby improving both picking efficiency and accuracy.

1 is a perspective view of a digital picking device according to an embodiment of the present invention,
Figure 2 is a perspective view of the digital parking device showing Figure 1 from a different angle,
3 is an operational state diagram of the picking sensor unit of the digital picking device according to an embodiment of the present invention,
Figure 4 is a partially enlarged view showing the storage state of the box of the digital picking device according to an embodiment of the present invention,
5 and 6 is a state diagram showing a state of loading the product in the stored box,
7 is a perspective view showing a state in which the product is loaded in the box of the digital picking device according to an embodiment of the present invention,
8 is a partially enlarged view showing a main configuration of a digital picking device according to an embodiment of the present invention, and
9 is a process flow diagram of a digital picking method according to an embodiment of the present invention.

Hereinafter, the present invention will be described in more detail with reference to the accompanying drawings. Prior to this, the terms or words used in the present specification and claims should not be interpreted as being limited to ordinary or dictionary meanings, and the inventor appropriately explains the concept of terms in order to explain his or her invention in the best way. Based on the principle that it can be defined, it should be interpreted as meanings and concepts consistent with the technical spirit of the present invention. In addition, unless otherwise defined in the technical terminology and scientific terminology used, it has a meaning commonly understood by a person skilled in the art to which this invention belongs. In the following description and accompanying drawings, descriptions of well-known functions and configurations that may unnecessarily obscure the subject matter of the present invention are omitted. The accompanying drawings are provided as examples in order to sufficiently convey the spirit of the present invention to those skilled in the art. Therefore, the present invention is not limited to the drawings presented below and may be embodied in other forms. In addition, the same reference numbers throughout the specification indicate the same components. It should be noted that the same components in the drawings are denoted by the same reference numerals wherever possible.

1 to 3, the present invention is a plurality of storage shelves 70 are arranged in the vertical direction in the storage frame (11). At this time, the storage frame 11 is illustrated as being provided in the form of a square frame composed of a horizontal frame 12 and a vertical frame 11, but the shape is not limited thereto.

In addition, the storage frame 11 is provided in the form of a cart equipped with a moving wheel 67 at the bottom. However, the present invention is not limited thereto, and may be provided in the form of a fixed frame installed on the floor.

On the other hand, when provided in the form of a cart, a handle portion 60 is installed in front of the storage frame 70 to grip when the operator moves to a desired place. At this time, a load cell portion 40 for measuring the weight of the product is installed on the upper portion of the handle portion 60. In addition, a scanner 65 is installed on the load cell portion 40 to scan the barcode of the product. In addition, a mobile terminal 30 is installed on the upper portion of the load cell 40.

Here, in the mobile terminal 30, in the picking operation, a database such as the total number of products stored and the arrangement pattern of the boxes in the storage shelf 70 is stored, and a guide for these operations can be made through a program.

On the other hand, as shown in Figure 1, the lower side of the storage frame 10 is equipped with a brake unit 66 to prevent the flow of the product to and from the front and rear and right and left of the moving wheel 67 when picking.

In addition, an LED bar 50 in which a plurality of individual LEDs are mounted is installed in front of the storage shelf 70. The LED bar 50 implements a lighting pattern set by a set box arrangement program of the mobile terminal 30 as a display member.

That is, the arrangement pattern of the preset box on the storage shelf 70 is displayed through LED lighting so that the optimal arrangement according to the width of the boxes of various sizes is performed, and through this, an operator can arrange the storage shelf 70 of the empty box. Be guided when.

Meanwhile, the display unit 20 is installed on the horizontal frame 12 at the top. At this time, the display unit 20 displays the loading quantity of the product delivered from the mobile terminal 30 to the operator during the picking operation. Therefore, when the worker loads the product in the box, the load is made by checking the quantity of the display unit 20.

Referring to FIG. 2, the Y-axis picking sensor unit 82 is installed on the sides of the vertical frame 11 on both sides of the storage frame 10, and the X-axis is provided on the sides of the horizontal frame 12 on both sides of the storage frame 10. The picking sensor unit 81 is installed.

Here, the picking sensor unit is a device using a conventional picking sensor, and a measuring area sensor, which is a photo sensor for area detection, is applied.

That is, the picking sensor units 81 and 82 are respectively installed on the X-axis and Y-axis of the storage frame 10 to realize a two-dimensional sensing area. This is used to detect the removal or loading of parts from the work space (storage shelf). In addition, it may be manufactured in an ultra-thin form using an optical lens, and thus may be installed over the horizontal and vertical frames 11 and 12 of the storage frame 10.

3 and 4, the digital picking device of the present invention having such a configuration is arranged in a predetermined arrangement by storing boxes (B1) having different sizes from each other on a plurality of storage shelves (70) installed in the storage frame (10) do.

That is, the mobile terminal 30 is provided with a box arrangement program to arrange boxes B1 or B2 having different size widths in the most efficient arrangement according to the width of the storage shelf 70. Therefore, the mobile terminal 30 controls the lighting of the LED bar 50 installed in front of the storage shelf 70 in a predetermined pattern according to the box arrangement program.

Referring to FIG. 4 to light the individual LED (L ₁₎ according to the width of the box (B1) to the array, the individual LED (L ₁₎ a light in a line will correspond to the width of the box (B1). Accordingly, the operator can load the corresponding box according to the lit individual LED (L ₁ ).

At this time, for example, when the relatively large sized box B2 in FIG. 4 is arranged, a greater number of individual LEDs are lit than the previously lit individual LEDs (L ₁ ; LEDs lit with a width corresponding to the box B1). . That is, the individual LED is lit to correspond to the width of the relatively large box B, so that the worker can select the size of the box and load the box.

In this way, in FIG. 4, the first box B1 is narrower than the second box B2, so the lighting width a1 of the individual LED L ₁ corresponding to the first box B1 is the second box. It is turned on smaller than the light width (a2) of each LED (L ₁₎ corresponding to (B2). Here, reference numeral L ₂ denotes an individual unlit LED.

As described above, the lighting pattern of the LED bar 50 (for example, corresponding to a1 and a2 in FIG. 4) is set by the box arrangement program of the mobile terminal 30, and the operator matches the lighting width of the LED bar 50. When the boxes are sorted and arranged, boxes B1 and B2 having different sizes are arranged in a predetermined pattern as shown in FIG. 3.

As described above, when the operation of disposing the empty box on the storage shelf 70 is completed, the operation of storing the product in the empty box is performed. That is, when the storage of the empty box on the storage shelf 70 is completed, as shown in FIGS. 3 and 6, the product P is loaded to fit the corresponding box.

Specifically, the operator scans the product P through the scanner 65, and measures the weight through the load cell unit 40. The measured value is confirmed by the mobile terminal 30 and lights and displays a certain number of individual LEDs in a row to correspond to the corresponding box to be loaded (area a1 in FIG. 6). In accordance with the guidance of the individual LEDs displayed as described above, the operator loads the product P in the corresponding box B1. At this time, the operator can check the quantity of the product P to be loaded through the display unit 20. That is, FIG. 6 shows that three products P are loaded in the corresponding box.

On the other hand, when the product (P) is loaded in a box other than the designated box due to a mistake in the process of loading the product (P) in the designated box as described above, the storage frame (through the picking sensor unit 81,82) In 10), the position is detected in two dimensions.

That is, the picking sensor units 81 and 82 detect the entire loading position through light irradiation in the form of a lattice as shown in FIG. 6, so that when the loading position of the product P does not correspond to the corresponding box, it detects it and moves the mobile terminal ( 30) can alert the operator as an alarm. Accordingly, it is possible to prevent the occurrence of incorrect picking (or picking) during the picking operation.

On the other hand, when the picking of the product P in the designated place is completed, the operator moves the storage frame 10 to move to the next work place, picking another product at the next work place and repeating the product. Picking can be completed. At this time, the picking operation may be completed by an operator's input operation to the mobile terminal 30.

9, the digital picking method of the present invention will be sequentially described. First, a picking order is received by the mobile terminal 30. Subsequently, the target boxes B1 and B2 are picked up from the loading place according to the received picking order and placed on the load cell section 40 of the picking cart.

Next, by scanning the barcodes for the target boxes B1 and B2 with the scanner 65, the information of the target boxes B1 and B2 is displayed on the mobile terminal 30, and at the same time, the target box through the load cell unit 40 The weight of (B1,B2) can be confirmed. Meanwhile, the picking quantity of the target boxes B1 and B2 is displayed through the display unit 20 installed in the picking cart.

Subsequently, a part of the display member (LED bar; 50) installed in the picking cart is lit to display the designated picking positions of the target boxes B1, B2, and the operator selects the target boxes B1, B2 at the picking positions of the lighted display members. ). Next, by detecting the target boxes B1 and B2 placed in the picking cart with the picking sensor units 81 and 82 installed in the picking cart, it is possible to detect whether accurate loading has been made.

At this time, to display the picking position of the target box (B1, B2), the LED bar 50 of the picking cart forms a lighting pattern with a length corresponding to the width of the target box, so that the loading can be quickly performed according to the size of the corresponding box. have.

In addition, when the target boxes (B1, B2) are correctly placed on the corresponding storage shelf of the picking cart, the picking sensor units (81, 82) detect this and turn off a part of the lit LED bar (50) to the worker. It recognizes that the picking operation has progressed well.

As described above, according to the present invention, by executing the box arrangement program through the mobile terminal 30, boxes of various widths B1 or B2 can be arranged in a free pattern on the storage shelf 70, thereby improving the efficiency of the arrangement space. have. In addition, when loading the product (P) in the box (B1 or B2), it is possible to load the product (P) according to the guidance of the display member provided on the storage shelf 70, to improve the picking efficiency and accuracy have. In addition, the picking sensor units 81 and 82 can detect the entire product loading position through light irradiation in the form of a lattice to prevent erroneous picking.

In the above, the present invention has been illustrated and described with respect to specific embodiments, but the present invention is not limited to the above-described embodiments, and those skilled in the art to which the present invention pertains may describe the present invention in the following claims. Any number of changes can be made without departing from the scope of the technical spirit of the invention.

10: storage frame
11: vertical frame
12: horizontal frame
20: display unit
30: mobile terminal
40: load cell section
50: LED bar
60: handle
65: scanner
66: brake
67: moving wheel
70: storage shelf
81: X-axis picking sensor unit
82: Y-axis picking sensor unit

Claims (6)

Receiving a picking order from the mobile terminal;
Picking up at least one target box from a loading location according to the picking order and mounting it on a load cell of the picking cart;
Scanning the bar code for the target box and displaying information of the target box on a mobile terminal;
Checking the weight of the target box with the load cell;
Displaying a picking quantity of the target box through a display unit installed in the picking cart;
A step in which a part of the display member installed in the picking cart is lit to display the picking position of the target box;
Placing the target box in the picking position of the lit display member; And
And detecting the target box placed in the picking cart with a picking sensor unit installed in the picking cart to check the position of the picking. According to claim 1,
The step of displaying the picking position of the target box,
A method of digital picking, characterized in that the display member of the picking cart forms a lighting pattern with a length corresponding to the width of the target box. According to claim 1,
The step of checking the loading position,
A digital picking method, characterized in that when the target box is correctly placed on a corresponding storage shelf of the picking cart, the display member is turned off. A storage frame in which a plurality of storage shelves are provided and boxes are stored in the storage shelves;
A display member provided with a plurality of light emitting elements installed in the horizontal direction on the storage shelf;
A picking sensor unit installed in at least one vertical frame and horizontal frame of the storage frame to detect when a product is loaded into the box; And
A mobile terminal for controlling the number of lighting of the light emitting element of the display member to correspond to the width of the box stored in the storage shelf, and receiving a signal detected through the picking sensor unit to determine whether the light emitting element is turned off or not Digital picking device comprising a. According to claim 4,
The display member,
A digital picking device, characterized in that a plurality of LEDs are provided as the light emitting element and are LED bars disposed in front of the storage shelf. The method of claim 5,
The picking sensor unit,
Y-axis picking sensor units respectively disposed in a pair of vertical frames facing each other among the storage frames, and
Digital picking device, characterized in that it comprises an X-axis picking sensor respectively disposed on a pair of horizontal frames facing each other among the storage frame.

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