JP2007119158A - Commodity supplement system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To efficiently perform an operation for supplementing commodities from a stock yard to a picking shelf. <P>SOLUTION: Commodity codes are read from the RFID tags 11 of the commodities input and output from areas by antennas 4 installed in the areas of a stock yard 2. Commodity codes are read from the RFID tags 11 of the commodities input and output from the picking shelf 3 at locations by antennas 5 installed on the picking shelf 3 at the locations. These commodity codes are transmitted to a management server 8. The management server 8 manages stock commodity information in which the commodity codes of the commodities on the stock yard 2, area information, and stock quantity correspond to each other, and manages picking commodity information in which the commodity codes of the commodities on the picking shelf 3, location information, and stock quantity correspond to each other. The management server 8 always monitors the picking commodity information, acquires the corresponding area information by retrieving the stock commodity information with an identification code used as a key when the commodities on the picking shelf 3 is just before stockout, and displays the acquired area information on a display 7 to inform a worker of the area of the stock yard to which the worker must come to take the commodities. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a commodity replenishing system for replenishing a picking shelf with commodities stored in a stock yard.

In recent years, for example, a so-called digital picking system has been constructed in a warehouse of a distribution center. The term “digital picking system” is a term widely used in the physical distribution industry, for example, as introduced at the following site.
(1) http://www.algosystem.co.jp/dps/dps_dps.html
(2) http://www.metrologic.com/asia/jp/apply/lantaiou.html
(3) http://www.cap-ai.jp/picking.html
(4) http://www.hitachi-hic.jp/products/industry/logi/facility/degital.html
In this system, products received in a warehouse are stored in picking shelves that are classified for each product, and an operator picks up the products instructed from the picking shelves, packs them, and ships them. Products that cannot be stored in the picking shelf are stored as stock in a stock yard that is installed behind the picking shelf.

  In such a system, a fixed location method has been conventionally employed as a method for storing goods in a stockyard. In the fixed location method, the storage position of the stock yard is fixed and managed for each product corresponding to the picking shelf. According to this fixed location method, it is required that the product and the storage location of the product are exactly the same, and if the product is stored in the wrong storage location, the correct product replenishment process cannot be performed. End up.

  On the other hand, for example, in a warehouse in the center of a city, it is often impossible to secure a sufficient installation space in a stock yard because the space is borrowed. When a stock yard is provided in such a narrow installation space, the fixed location method as described above makes it impossible to store products. Therefore, a so-called free location system that does not fix the storage position of the product must be used to effectively use the space.

  However, if the stockyard is set to a free location, the location information for storing the product must be reported to the server that manages the system each time. If the report is missing or wrong, the picking shelf will be missing. When there is a product close to the product, it is difficult to know where the product is stored in the stockyard.

  In this way, even in a system where both the stock yard and picking shelves that are currently mainstream are fixed locations, it is possible to immediately detect where in the stock yard the goods to be replenished to the missing picking shelves are stored. What you do depends largely on the experience and intuition of the expert. In fact, inexperienced workers and inexperienced workers are searching for and making mistakes in the stockyard. Furthermore, when the stockyard and picking shelf are free locations, the experience of such experts is not useful at all, so it is necessary to construct a system that can perform efficient replenishment processing without waste such as rework. ing.

  In addition, the following patent document discloses a technique for lighting an indicator lamp in a space where a product is stored when an item of a desired product is input at an input unit of a shelf controller. However, according to this technique, there is a drawback that it takes time and labor for an operator to perform input work one by one in order to search for a target product.

Japanese Patent Laid-Open No. 2003-118813

  The present invention has been made to solve the above-described problems, and an object of the present invention is to provide a product replenishment system that allows an operator to efficiently replenish products from a stock yard to a picking shelf. It is to be.

  A product replenishment system according to the present invention is a product replenishment system for replenishing a product stored in an arbitrary area of a stock yard to a location of a picking shelf in order to achieve the above object, and is installed for each area of the stock yard. A first reading means for reading the identification code of the commodity when the goods are entered / exited to / from each area, and a second reading unit that is installed for each location of the picking shelf and reads the identification code of the commodity when the goods are entered / exited to / from each location. Reading means, identification code of the goods stored in the stock yard, area information for specifying the storage position, stock product information storage means for storing the corresponding stock quantity, and identification of the goods stored in the picking shelf Picket that stores code, location information for specifying storage location, and stock quantity The stock product information is updated based on the identification code read by the product information storage means and the first reading means, and the picking product information is updated based on the identification code read by the second reading means. Product information update means to be updated and the picking product information are monitored, and when the stock quantity of the product on the picking shelf falls below the reference quantity, the stock product information is searched using the identification code as a key, and the product to be replenished An area information acquisition unit that acquires area information corresponding to the identification code, and a display unit that is installed on the picking shelf and displays the area information acquired by the area information acquisition unit.

  As a means of reading the product identification code when entering and leaving the product, an antenna is installed in each area of the stockyard and each location on the picking shelf, and the identification code stored in the RFID tag attached to the product is transmitted from the antenna. It is possible to adopt a means for reading by radio waves. However, the reading means is not limited to this. A reader that reads a barcode or a two-dimensional code may be adopted as long as the identification code can be read and reflected in the product information in real time when the product is entered and exited. In addition to the display of area information, it is also possible to notify the operator by voice alarm output.

  In the commodity replenishment system according to the present invention, the area information acquisition means has a shortest distance among routes from the location of the picking shelf to be replenished to the stockyard area based on the location information and the area information. It is preferable to select area information by route.

  As a means for selecting the area information of the shortest distance route, the position of each area of the stock yard and the location of each picking shelf is stored as coordinate data, and the location of the missing item based on the coordinate data is stored. This is determined by comparing the distances obtained for a plurality of routes to and from the area where the product is stored. When there are a plurality of routes with the shortest distance, the attribute information in the stock product information may be searched, and for example, a route giving priority to the one with the best-before date may be selected.

  In the product replenishment system according to the present invention, when the replenishment of the product to the picking shelf is completed, the picking product information is updated based on the identification code read by the second reading unit, and then displayed on the display unit. Reset the area information.

  According to the product replenishment system of the present invention, when the stock quantity of the product on the picking shelf falls below the reference quantity, the area information of the stock yard where the product to be replenished is stored is displayed. According to the display, the goods can be surely picked up, and it is possible to perform efficient replenishment work without reworking the work. In addition, since the distance traveled when replenishing goods from the stock yard to the picking shelf is set to be minimum, the flow line of the worker can be minimized.

  Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings.

  FIG. 1 is a diagram showing a state in a warehouse to which a product replenishment system of the present invention is applied.

  As shown in FIG. 1, this commodity replenishment system 1 is constructed in, for example, a warehouse of a distribution center, and includes a stock yard 2, picking shelves 3, antennas 4 and 5, a controller 6, a display 7, and a management server. 8 is configured. The goods received in the warehouse are stored in the picking shelf 3, and the products that cannot be stored are stored in the stock yard 2. The feature of this system 1 is the work of replenishing the picking shelf 3 with the products stored in the stock yard 2. This is to improve efficiency. The goods stored in the picking shelf 3 are shipped after being picked up and packed by the worker based on the picking instruction, but this pick-up process is not related to the gist of the present invention and will not be described.

  In the figure, reference numeral 10 denotes a product carton containing products to be received in the warehouse, and the product carton 10 stores the same type of products by a predetermined quantity (10 pieces). An RFID tag 11 is individually attached to the product carton 10, and a product code is recorded in a memory of the RFID tag 11 by a handy terminal possessed by an operator when the product is received. This product code is an identification code for specifying the type of product in the product carton 10.

  FIG. 2 is a diagram schematically showing the configuration of the product replenishment system of the present invention.

  As shown in FIG. 2, the stock yard 2 is partitioned into a plurality of areas. The stock yard 2 according to the present embodiment has a total of four areas S1 to S4 each having a front opening toward the picking shelf 3 and configured by four rows and one stage. Individual antennas 4, 4,... Are installed in the areas S1 to S4, respectively. All the antennas 4 installed in the stockyard 2 are connected to a controller 6 via an antenna cable 9, and the controller 6 is further connected to a higher management server 8.

  A unique area code is assigned to each of the areas S1 to S4 of the stockyard 2 in order to specify a position in the stockyard 2. In addition, the free location method is used to store products in the stockyard 2. That is, the operator stores the product carton 10 in the empty area of the stock yard 2 according to the order of arrival of the products, and stores the products in units of cartons.

  The antenna 4 constantly radiates radio waves in response to a control signal from the controller 6 and reads the product code in real time when the product is received and delivered. That is, when a product carton 10 is stored in an arbitrary area of the stock yard 2 by an operator, the antenna 4 installed in the stored area detects the RFID tag 11 of the stored product carton 10 and the RFID tag 11 reads the product code stored in 11. The read product code is transmitted to the management server 8 via the controller 6 together with its own area code.

  On the other hand, when the product carton 10 is delivered from the stock yard 2 when the product is replenished to the picking shelf 3, the antenna 4 installed in the delivered area detects the RFID tag 11 of the delivered product carton 10, and the RFID The product code stored in the tag 11 is read. Then, the read product code is transmitted to the management server 8 via the controller 6 together with its own area code.

  The picking shelf 3 is installed in parallel to the stock yard 2 and is partitioned into a plurality of locations. The picking shelf 3 of the present embodiment has a front opening facing the stock yard 2 side and has a frontage opening, and is composed of a total of 24 locations P1 (P1-1, P1-2, P1-3) configured by 8 rows × 3 steps. To P8 (P8-1, P8-2, P8-3). The individual antennas 5, 5,... And the indicators 7, 7,. All the antennas 5 installed on the picking shelf 3 are connected to a controller 6 via an antenna cable 9, and the controller 6 is further connected to a higher management server 8. All the display devices 7 are also connected to the management server 8 in the same manner. Upon receiving a display signal from the management server 8, predetermined information is digitally displayed and the display is reset according to the reset signal.

  A unique location code is assigned to each of the locations P1 to P8 of the picking shelf 3 in order to specify a position in the picking shelf 3. The free storage method is basically used to store products in the picking shelf 3, and if there is a shortage of products, the product cartons 10 are replenished sequentially from the stock yard 2, and the empty area of the picking shelf 3 is in cartons. It is stored in.

  The antenna 5 also constantly radiates radio waves according to the control signal of the controller 6 and reads the product code in real time when the product is entered and exited. That is, when the product carton 10 is received at an arbitrary location on the picking shelf 3 by the operator, the antenna 5 installed at the received location detects the RFID tag 11 of the received product carton 10, and the RFID tag 11 reads the product code stored in 11. The read product code is transmitted to the management server 8 through the controller 6 together with its own location code.

  On the other hand, when the product in the product carton 10 is exhausted by the picking operation of the product stored in the picking shelf 3, the product carton 10 emptied by the operator is delivered. Also at this time, the antenna 5 installed at the location where the product is delivered detects the RFID tag 11 of the delivered product carton 10 and reads the product code stored in the RFID tag 11. Then, the read product code is transmitted to the management server 8 via the controller 6 together with its own location code.

  The management server 8 includes a product management database 20, in which a stock product management table 21 and a picking product management table 22 are stored.

  FIG. 3 is a diagram showing the contents of the stock product management table.

  As shown in FIG. 3, the stock merchandise management table 21 is a table for managing the merchandise stored in the stock yard 2, and includes area information 211 for specifying the storage position of the merchandise in the stock yard 2, The attribute information 212 indicating the characteristics and the inventory information 213 indicating the inventory quantity of the product are stored in association with each other.

  The area information 211 includes an area code and coordinate data specified by the area code. The coordinate data is an XY coordinate value with a specific point in the warehouse as the origin (0, 0) as shown in FIG. 5 and specifies the center position of each area S1 to S4 when the stockyard 2 is viewed from the front. To do. The attribute information 212 may include a product code, a product name specified by the product code, and information such as a product origin and a shelf life. The stock information 213 includes the number of cartons and the number of contents of products stored in the stock yard 2.

  FIG. 4 shows the contents of the picking product management table.

  As shown in FIG. 4, the picking product management table 22 is a table for managing the products stored in the picking shelf 3, and includes location information 221 for specifying the storage position of the products in the picking shelf 3, The attribute information 222 indicating the characteristics and the inventory information 223 indicating the inventory quantity of the product are stored in association with each other.

  The location information 221 includes a location code and coordinate data specified by the location code. As shown in FIG. 5, the coordinate data is XY coordinate values with a specific point in the warehouse as the origin, and specifies the center position of each of the locations P1 to P8 when the picking shelf 3 is viewed from the front. The attribute information 222 includes information such as a product code, a product name, a product production area and a shelf life similar to the above. The stock information 223 includes the number of cartons and the number of contents of products stored in the picking shelf 3.

  As described above, the management server 8 can grasp in real time what kind of products are stored in which area of the stockyard 2 by referring to the stock product management table 21. Similarly, by referring to the picking merchandise management table 22, it is possible to grasp what kind of merchandise is stored in which location of the picking shelf 3.

  The above is the configuration of the product replenishment system 1 of the present embodiment. Here, a product replenishment process when there is a product close to a shortage in the picking shelf 3 will be described. Note that the shortage of shortage means a state when the stock quantity of a certain type of product stored in the picking shelf 3 falls below the reference quantity. In this embodiment, since the product carton is managed in units of 10, the reference quantity is set to “2”, and the state when the product carton 10 stored in the picking shelf 3 becomes one remaining box is close to the shortage. State.

  FIG. 6 is a flowchart showing a processing procedure in the management server.

  As shown in FIG. 6, the management server 8 always monitors the picking product management table 22 (step 601), and continues monitoring until the inventory quantity falls below the reference quantity (NO in step 602). It is assumed that the product (product code: 001, product name: soy sauce) currently stored in the location P1 of the picking shelf 3 is one box. At this time, as shown in FIG. 4, in the picking product management table 22, the stock quantity of the product code “001” is “1”, and the management server 8 has the stock quantity of the product (soy sauce) below the reference quantity “2”. (YES in step 602).

  Here, the management server 8 refers to the stock product management table 21 shown in FIG. 3 (step 603). Then, the latest stock product information is searched using the product code “001” as a search key, and area information 211 (area code: S1) corresponding to the product code “001” to be replenished is acquired (step 604). When the management server 8 acquires the area information 211, the management server 8 transmits the data of the acquired area information 211 to the display 7 at the location P1 close to the shortage, and displays the area information 211 on the display 7 (step 605). Note that an alarm output by voice may be output in accordance with the display on the display unit 7.

  In this way, since the area information 211 (area code: S1) of the product to be replenished is displayed on the display 7 at the location P1 close to the shortage, the operator can find a product near the shortage on the picking shelf 3. You will be informed that there is an area in the stock yard 2 where you can pick up the goods to replenish the goods. Actually, the operator may go to the area S1 of the stock yard 2 to take the product (soy sauce) according to the instruction of the display unit 7, and replenish the product to the location P1 near the shortage of the picking shelf 3.

  In the stock yard 2, the operator takes out the soy sauce product carton 10 from the area S1, and the soy sauce product carton 10 is delivered from the area S1. At this time, the antenna 4 in the area S 1 detects the RFID tag 11 of the soy sauce product carton 10 and reads the product code “001” stored in the RFID tag 11. The read product code “001” is transmitted to the management server 8 via the controller 6 together with its own area code “S1”. Here, the management server 8 rewrites the inventory information 213 by subtracting 1 from the inventory quantity based on the received product code “001” and area code “S1”, and updates the contents of the stock product management table 21.

  On the other hand, in the picking shelf 3, when the operator replenishes the location P1 with the soy sauce product carton 10, the soy sauce product carton 10 enters the location P1. At this time, the antenna 5 at the location P 1 detects the RFID tag 11 of the soy sauce product carton 10 and reads the product code “001” stored in the RFID tag 11. The read product code “001” is transmitted to the management server 8 through the controller 6 together with its own location code “P1”. Here, the management server 8 rewrites the inventory information 223 by adding 1 to the stock quantity based on the received product code “001” and location code “P1”, and updates the contents of the picking product management table 22.

  When the management server 8 determines that the inventory quantity has reached the reference quantity “2” or more by updating the picking product management table 22, it outputs a reset signal to the display unit 7 and is displayed on the display unit 7. The area information 211 (area code: S1) is deleted. As a result, the operator can confirm that the replenishment processing of the goods to the picking shelf 3 has been completed.

  The basic flow of the product replenishment process has been described above. Next, the minimization of the flow line of the worker who replenishes the product from the stock yard 2 to the picking shelf 3 will be described. The operator's flow line is defined as the distance traveled between the stock yard 2 and the picking shelf 3, and the three-tier locations in the same row of the picking shelf 3 are all the same for a specific area of the stock yard 2. Think of it as a distance.

  FIG. 7 is a diagram illustrating an example of a flow line of an operator at the time of product replenishment.

  In FIG. 7, it is assumed that the product currently stored in the location P3 of the picking shelf 3 is the remaining one box and the stock is stored in the area S2 of the stockyard 2. In this case, as a route for the operator to pick up goods from the location P3 of the picking shelf 3 to the area S2 of the stock yard 2, the location of the stock yard 2 on the back side passes through the front of the locations P2 and P1 on the left side from the location P3. There is a counterclockwise route R1 that goes to the area S2, and a clockwise route R2 that goes from the location P2 to the area S2 of the stockyard 2 on the back side through the front of the locations P4 to P8 on the right side. The display device 7 at the location P3 displays a route that minimizes the flow line of the worker. Here, it is determined as follows whether to select and display a counterclockwise route or a clockwise route.

  As described above, the picking product management table 22 stores the coordinate data corresponding to the location code as the location information 221 for specifying the storage position of the product. Similarly, the stock product management table 21 stores coordinate data corresponding to the area code as the area information 211 for specifying the storage position of the product. The management server 8 that has acquired the area information 211 of the product to be replenished here, based on the coordinate data corresponding to the area code and the coordinate data corresponding to the location code, the distance of the counterclockwise route R1 and the clockwise route R2. Calculate the distance.

  The distance of the counterclockwise route R1 is the sum of the distance L1 from the locations P3 to P1, the distance L2 from the location P1 to the area S1, and the distance L3 from the areas S1 to S2, and is obtained by the following calculation formula.

R1 = L1 (X _P3 −X _P1 ) + L2 + L3 (X _S2 −X _S1 )

  Referring to FIG. 5, the XY coordinate value of the location P3 is (7, 3), the XY coordinate value of the location P1 is (3, 3), the XY coordinate value of the area S1 is (4, 7), and the area S2 The XY coordinate value of is (8, 7). Therefore, the distance of the counterclockwise route R1 is R1 = L1 (7-3) + L2 + L3 (8-4) = L2 + 8.

  The distance of the clockwise route R2 is the sum of the distance L4 from the locations P3 to P8, the distance L5 from the location P8 to the area S4, and the distance L6 from the areas S4 to S2, and is obtained by the following calculation formula.

R2 = L4 (X _P8 −X _P3 ) + L5 + L6 (X _S4 −X _S2 )

  Referring to FIG. 5, the XY coordinate value of the location P8 is (17, 3), and the XY coordinate value of the area S4 is (16, 7). Therefore, the distance of the clockwise route R2 is R2 = L4 (17-7) + L5 + L6 (16-8) = L5 + 18.

  In response to the above result, the management server 8 compares the distance of the counterclockwise route R1 with the distance of the clockwise route R2, but the distance L2 from the location P1 to the area S1 and the distance L5 from the location P8 to the area S4 are Since they are equal, it is determined that the distance of the counterclockwise route R1 is shorter, and the counterclockwise route R1 is selected. Then, the data of the area information 211 by the counterclockwise route R1 is transmitted to the display unit 7.

  As a result, the area information 211 whose route is designated by the left-pointing arrow as shown in FIG. 8 is displayed on the display 7 at the location P3. Therefore, it is understood that the worker can go to the area S2 of the stockyard 2 using the counterclockwise route R1 from the location P3 to replenish the product, and the worker's flow line is minimized. be able to.

  In addition, if a frontage is opened also on the back side of the picking shelf 3 so that goods can be put in and out, it is only necessary to compare the distance between the two points of the location and the area.

  By the way, in this embodiment, since the free location method is adopted for the storage of products in the stock yard 2, there is a case where the stock of products to be replenished to the picking shelf 3 is stored in different areas of the stock yard 2. Conceivable. Thus, how such a route that minimizes the flow line of the worker is determined will be described.

  FIG. 9 is a diagram showing another example of the flow line of the worker when the product is replenished.

  In FIG. 9, it is assumed that the product currently stored in the location P5 of the picking shelf 3 is the remaining one box, and the stock of the product is stored in both the areas S2 and S3 of the stockyard 2. In this case, as a route for the operator to pick up goods from the location P5 of the picking shelf 3 to the stock yard 2, the counterclockwise route R1 and the clockwise route R2 from the location P5 to the area S2, and from the location P5 to the area S3. A total of four routes, namely, a counterclockwise route R3 and a clockwise route R4 can be considered.

  Here, similarly to the above, in the management server 8 that has acquired the area information S2 and S3 of the product to be replenished, the four routes R1 to R1 are based on the coordinate data corresponding to the area code and the coordinate data corresponding to the location code. The distance of R4 is calculated. As a result, the distance of the counterclockwise route R1 from the location P5 to the area S2 is 16, the distance of the clockwise route R2 from the location P5 to the area S2 is 18, and the distance of the counterclockwise route R3 from the location P5 to the area S3 is 20. The distance of the clockwise route R4 from the location P5 to the area S3 is 14.

  Thereby, the management server 8 compares the distances of the four routes R1 to R4, and selects the clockwise route R4 from the location P5, which is the minimum value 14, to the area S3. Then, by transmitting the data of the area information 211 by the clockwise route R4 to the display unit 7, the area information 211 in which the route is designated by the right-pointing arrow as shown in FIG. 10 is displayed on the display unit 7 of the location P5. The Therefore, even when the stock of the goods to be replenished is stored in different areas of the stockyard 2, the worker can reach the target area through the shortest distance route according to the instruction of the display unit 7. .

  The present invention is not limited to the above-described embodiment, and the following modifications can be considered.

  Usually, when a product is newly received, the location of the picking shelf 3 to be stored is first determined, and then the area of the stock yard 2 that stores the product that cannot be stored is determined. Therefore, when there are a plurality of vacancy in the area of the stock yard 2, if the area with the shortest distance to the specific location is selected and stored as described above, the flow line when replenishing the product can be shortened. It is also possible to install an instruction means in the stock yard 2 for instructing the worker to store the goods in such an area of the shortest distance. Even when there are a plurality of vacant areas, when an operator tries to store a product in a distant area, the warehousing may be detected by the antenna 4 to output a warehousing prohibition instruction.

  In the above-described embodiment, the RFID tag 11 is attached to each product carton 10 and the missing item replenishment is managed in units of cartons. Instead, the RFID tag 11 is attached to each of the products and more in units of products. Fine management may be performed. If there are a plurality of routes with the shortest distance to a specific area in the stockyard 2, the management server 8 searches the attribute information in the stock product management table 21 and, for example, prioritizes the one with the best-before date. If the selected route is selected, first-in first-out management of products can be realized.

The figure which shows the mode in the warehouse which applied the goods replenishment system of this invention. The figure which shows typically the structure of the goods replenishment system of this invention. The figure which shows the content of a stock merchandise management table. The figure which shows the content of the picking goods management table. The figure which shows the XY coordinate value of each area of the stockyard in a warehouse, and the XY coordinate value of each location of a picking shelf. The flowchart which shows the process sequence in a management server. The figure which shows an example of the operator's flow line at the time of goods replenishment. The figure which shows the example of a display of the area information by a display. The figure which shows another example of the operator's flow line at the time of goods replenishment. The figure which shows the example of a display of the area information by a display.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Merchandise replenishment system 2 ... Stockyard 3 ... Picking shelf 4 ... Stockyard antenna 5 ... Picking shelf antenna 6 ... Controller 7 ... Indicator 8 ... Management server 9 ... Antenna cable 10 ... Product carton 11 ... RFID tag 20 ... Product management database 21 ... Stock product management table 211 ... Area information 212 ... Attribute information 213 ... Stock information 22 ... Picking product management table 221 ... Location information 222 ... Attribute information 223 ... Stock information

Claims (3)

A product replenishment system that replenishes goods stored in any area of the stockyard to the location of a picking shelf,
A first reading unit that is installed for each area of the stock yard and reads an identification code of a product at the time of loading and unloading of the product with respect to each area;
A second reading unit that is installed for each location of the picking shelf and reads the identification code of the product at the time of loading / unloading of the product to / from each location;
Stock product information storage means for storing the identification code of the product stored in the stock yard, the area information for specifying the storage position, and the stock quantity in association with each other;
Picking product information storage means for storing the identification code of the product stored in the picking shelf, the location information for specifying the storage position, and the stock quantity in association with each other;
Merchandise information updating means for updating the stock merchandise information based on the identification code read by the first reading means, and updating the picking merchandise information based on the identification code read by the second reading means; ,
Area information corresponding to the identification code of the product to be replenished by monitoring the picking product information, searching for the stock product information using the identification code as a key when the inventory quantity of the product on the picking shelf falls below the reference quantity Area information acquisition means for acquiring
Display means installed on the picking shelf and displaying area information acquired by the area information acquisition means;
A product replenishment system characterized by comprising:   The area information acquisition means selects area information based on the shortest distance among the routes from the location of the picking shelf to be replenished to the stockyard area based on the location information and the area information. The product replenishment system according to claim 1. When the replenishment of the product to the picking shelf is completed, the picking product information is updated based on the identification code read by the second reading unit, and then the area information displayed on the display unit is reset. The commodity replenishment system according to claim 1 or 2.

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