KR102389786B1 - Method for Digital Picking - Google Patents

Abstract

The present invention provides a digital picking method using a picking device provided with a picking sensor comprising a Y-axis picking sensor unit and an X-axis picking sensor unit, the method comprising: receiving a picking order with a mobile terminal; Picking up at least one target box from a loading place according to the picking order and mounting it on a load cell of a picking cart; scanning a barcode for the target box to display information on the target box on the mobile terminal; checking the weight of the target box with the load cell; displaying the picking quantity of the target box through a display unit installed in the picking cart; displaying a picking position of the target box by turning on a portion of the display member installed in the picking cart; placing the target box at the picking position of the lit display member; and detecting the target box placed on the picking cart with the picking sensor unit installed on the picking cart to confirm the placement position.

Description

Digital Picking Method {Method for Digital Picking}

The present invention relates to a digital picking method, and more particularly, to a digital picking method with improved efficiency of a conventional picking operation.

In general, ordered products delivered to each store, such as a department store or a convenience store, are delivered by means of vehicle transport from a delivery center that is a pickup and delivery base. Products to be delivered are arranged by the vendor or producer of each product and stored in the logistics and delivery center, where many different types are separately divided according to the order for each store, and each store of the recipient classified by

The goods delivered from the goods vendor to the delivery center (distribution center) are divided into, for example, restocking and transit through the arrival dock, and the restocked products are in pallet units, carton units, or piece or ball units. stored in the inventory area.

For storage, for example, an Automated Storage/Retrieval System (AS/RS) or a forklift retractable pallet rack is used. The goods, etc. on the pallet stored in the rack shelf are taken out based on shipment information by a picking operator, and are loaded on the conveyor for picking, and are shipped. Here, the shipping information refers to a shipping invoice that receives orders for products from multiple stores and dispatches them to each region and each store. That is, this is a picking list for each delivery destination.

At this time, for products such as cosmetics, almost 95% or more of the orders received from each store are in the form of individual pieces rather than cartons (boxes) or pallets. Therefore, in a cosmetics distribution center that delivers a small number of products of various types to a number of stores, picking and packing are inevitable by a picking worker's manual work.

As described above, in order to pick and pack and deliver multi-variety, small-quantity products ordered by each store within the distribution center, it is only possible to accurately pick the products loaded in the carton boxes of the racks for each location of the distribution center. Do.

At present, logistics and delivery centers that specialize in delivering a small number of products of various types are picking the products from carton boxes loaded in racks at the location manually while picking workers check the dispatch work orders one by one.

As such, when picking is completed by hand, it is packed and delivered by checking whether the picking product and the work order match the product through the inspection (checking the correctness of the picked product and the number of ordered products).

Therefore, in a logistics delivery center that specializes in delivering a small number of products of various types, logistics costs increase and delivery delays occur frequently due to the complexity of the inspection process for picking and inspecting whether the picked products are accurate for each delivery location.

For this purpose, a digital picking device has been disclosed in the prior art so that a picking worker drags and performs a picking operation.

However, in the conventional digital picking apparatus, it is difficult to improve the loading efficiency as the loading position is preset to correspond to the size of the box loaded on the loading shelf.

In other words, there is a problem that the space cannot be used efficiently when loading boxes, and it is difficult to set the size or arrangement of the loading area of the loading shelf as desired, so that it is difficult to improve the efficiency of the box loading process.

<Prior Document 1>: Korean Patent Publication No. 2009-0089653 (published on August 24, 2009)

The present invention was devised to solve the above problems, and it is an object of the present invention to provide a digital picking method capable of improving the efficiency of the loading space of the picking shelf by freely adjusting and setting the box arrangement of the picking shelf.

According to an embodiment of the present invention for achieving the above object, the step of receiving a picking order to a mobile terminal; Picking up at least one target box from a loading place according to the picking order and mounting it on a load cell of a picking cart; scanning a barcode for the target box to display information on the target box on the mobile terminal; checking the weight of the target box with the load cell; displaying the picking quantity of the target box through a display unit installed in the picking cart; displaying a picking position of the target box by turning on a portion of the display member installed in the picking cart; placing the target box at the picking position of the lit display member; and detecting the target box placed on the picking cart with a picking sensor installed on the picking cart to confirm the placement position.

In the step of displaying the picking position of the target box, the display member of the picking cart forms a lighting pattern with a length corresponding to the width of the target box, and the step of confirming the placement position is that the target box is the When it is correctly placed on the corresponding storage shelf of the picking cart, the display member may be turned off.

According to the present invention, by executing a box arrangement program through a mobile terminal, boxes of various widths can be arranged in a free pattern on the storage shelf, so that the box arrangement efficiency can be improved. The product can be loaded according to the guidance of the displayed display member, which has the effect of improving both picking efficiency and accuracy.

1 is a perspective view of a digital picking device according to an embodiment of the present invention;
2 is a perspective view of the digital parking device showing FIG. 1 from another angle;
3 is an operation state diagram of a picking sensor unit of a digital picking device according to an embodiment of the present invention;
4 is a partially enlarged view showing a storage state of a box of a digital picking device according to an embodiment of the present invention;
5 and 6 are state diagrams showing a state of loading the product in the received box,
7 is a perspective view showing a state in which a product is loaded in a box of a digital picking device according to an embodiment of the present invention;
8 is a partially enlarged view showing the main configuration of a digital picking apparatus 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 construed as being limited to conventional or dictionary meanings, and the inventor should properly understand the concept of the term in order to best describe his invention. Based on the principle that can be defined, it should be interpreted as meaning and concept consistent with the technical idea of the present invention. In addition, unless otherwise defined in technical terms and scientific terms used, those of ordinary skill in the art to which this invention pertains have the meanings commonly understood. 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 will be 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. Accordingly, the present invention is not limited to the drawings presented below and may be embodied in other forms. Also, like reference numerals refer to like elements throughout. It should be noted that the same components in the drawings are denoted by the same reference numerals wherever possible.

1 to 3 , according to the present invention, a plurality of storage shelves 70 are vertically disposed on the storage frame 11 . At this time, the accommodation frame 11 is exemplified 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 accommodation frame 11 is provided in the form of a cart in which a moving wheel 67 is mounted at the lower portion. 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 for gripping when the operator moves to a desired place is installed in front of the storage frame 70 . At this time, the load cell unit 40 for measuring the weight of the product is installed on the upper portion of the handle unit 60 . In addition, a scanner 65 is installed on the load cell unit 40 to scan the barcode of the product. In addition, the mobile terminal 30 is installed on the upper portion of the load cell unit (40).

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

On the other hand, as shown in FIG. 1 , a brake unit 66 is mounted on one side of the lower end of the accommodation frame 10 to prevent the moving wheel 67 from flowing forward, backward, left and right when picking the product.

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

That is, the arrangement pattern of the boxes preset on the storage shelf 70 is displayed through LED lighting so as to be optimally arranged according to the width of boxes of various sizes, and through this, the operator can arrange the storage shelves 70 of empty boxes. to be guided when

Meanwhile, the display unit 20 is installed on the uppermost horizontal frame 12 . 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, the operator checks the quantity of the display unit 20 when loading the product in the box and the loading is made.

Referring to FIG. 2 , Y-axis picking sensor units 82 are installed on the sides of both vertical frames 11 in the accommodation frame 10 , and the X-axis on the sides of both horizontal frames 12 in the accommodation frame 10 . A peaking sensor unit 81 is installed.

Here, the peaking sensor unit is a device using a general peeking sensor, and a measuring area sensor, which is a photo sensor for area sensing, is applied.

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

3 and 4, the digital picking device of the present invention having such a configuration accommodates boxes B1 of different sizes in a plurality of storage shelves 70 installed in the storage frame 10 and arranges them in a predetermined arrangement. do.

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

Referring to FIG. 4 , the individual LEDs L ₁ are lit according to the width of the box B1 to be arranged, and the individual LEDs L ₁ lit in a line correspond to the width of the box B1. Accordingly, the operator can load the box according to the individual LED (L ₁ ) that is lit.

At this time, for example, in the case of arranging the box B2 of a relatively large size in FIG. 4 , a larger 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, individual LEDs are turned on to correspond to the width of the relatively large box (B), so that the operator selects the size of the box to load the box.

As such, in FIG. 4 , the first box B1 is narrower than the second box B2 , and thus the lighting width a1 of the individual LEDs L ₁ corresponding to the first box B1 is the second box It is lit narrower than the lighting width a2 of the individual LED (L ₁ ) corresponding to (B2). Here, reference numeral L ₂ denotes an individual LED that is not lit.

In this way, 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 boxes are selected 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 arranging the empty box on the storage shelf 70 is completed, the operation of accommodating the product in the empty box is performed. That is, when the storage of the empty box on the storage shelf 70 is completed, the product P is loaded according to the box as shown in FIGS. 3 and 6 .

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 checked by the mobile terminal 30 and a certain number of individual LEDs are lit and displayed in a line to correspond to the corresponding box to be loaded (area a1 in FIG. 6 ). According to the guidance of the individual LEDs displayed in this way, the operator loads the product (P) in the corresponding box (B1). In this case, the operator can check the quantity of the product P to be loaded through the display unit 20 . That is, in FIG. 6 , the three products P are loaded into the box.

On the other hand, if 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, it is transmitted through the picking sensor unit (81, 82) to the receiving frame ( In 10), the position is detected in two dimensions.

That is, the picking sensor units 81 and 82 detect the entire loading position through grid-type light irradiation as shown in FIG. 6 , so that when the loading position of the product P does not correspond to the corresponding box, it is detected, and the mobile terminal ( 30) may warn the operator of this as an alarm. Accordingly, it is possible to prevent erroneous picking (off-picking) from occurring during the picking operation.

On the other hand, when the picking of the product P at the designated place is completed, the worker moves the storage frame 10 to the next work place, and picks other products at the next work place and repeats this. The picking operation can be completed. At this time, the picking operation can be completed by the operator's input operation to the mobile terminal 30 .

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

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

Then, a part of the display member (LED bar; 50) installed in the picking cart is lit to indicate the designated picking position of the target box (B1, B2), and the operator places the target box (B1, B2) at the picking position of the lighted display member ) is put in Next, by detecting the target boxes B1 and B2 placed on the picking cart with the picking sensor units 81 and 82 installed on the picking cart, it is possible to detect whether the correct loading has been made.

At this time, the indication of the picking position of the target boxes (B1, B2) is that 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 loading can be done quickly by size of the box. there is.

In addition, when the target boxes (B1, B2) are placed in a correctly designated position on the corresponding storage shelf of the picking cart, the picking sensor units 81 and 82 detect this and turn off a part of the LED bar 50 that has been lit to correspond to the operator. Recognizes that the picking operation has proceeded well.

As described above, according to the present invention, by executing the box arrangement program through the mobile terminal 30, the boxes (B1 or B2) of various widths can be arranged in a free pattern on the storage shelf 70, so that the efficiency of the arrangement space can be improved. there is. In addition, when the product (P) is loaded in the box (B1 or B2), the product (P) can be loaded according to the guidance of the display member provided on the storage shelf 70, so that the picking efficiency and accuracy can be improved. there is. In addition, since the picking sensor units 81 and 82 detect the entire product loading position through grid-type light irradiation, it is possible to prevent mis-picking in advance.

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 of ordinary skill in the art to which the present invention pertains will The invention may be implemented with various changes without departing from the spirit of the invention.

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

Claims (2)

A digital picking method using a picking device provided with a picking sensor unit composed of a Y-axis peaking sensor unit and an X-axis peaking sensor unit, comprising:
Receiving a picking order to a mobile terminal;
Picking up at least one target box from a loading place according to the picking order and mounting it on a load cell of a picking cart;
scanning a barcode for the target box to display information on the target box on the mobile terminal;
checking the weight of the target box with the load cell;
displaying the picking quantity of the target box through a display unit installed in the picking cart;
displaying a picking position of the target box by turning on a portion of the display member installed in the picking cart;
placing the target box at the picking position of the lighted display member; and
Detecting the target box placed on the picking cart with the picking sensor unit installed on the picking cart to confirm the placement position,
The step of displaying the picking position of the target box forms a pattern by lighting the display member of the picking cart with a length corresponding to the width of the target box by the box arrangement program of the mobile terminal, and
The step of confirming the placement position comprises turning off the display member when the target box is correctly placed on the corresponding storage shelf of the picking cart. delete

Images