JP2543385B2 - Logistics management system - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to a physical distribution management system, and in particular, it temporarily stores various goods carried in from an upstream production line in a hangar and a downstream production line. The present invention relates to a physical distribution management system for shipping goods in response to requests from shipping destinations such as.

[Conventional technology]

As such a physical distribution management system, a physical distribution control device that controls the flow of goods between products and related production lines is known. The apparatus will be described as an example.

For example, a product completed in an engine production line in the automobile industry reads a bar code for identification attached to the product by a bar code reader 1 as shown in the block diagram of FIG. The stacker crane 3 is controlled by the control device of the computer 2 and is temporarily stored in a predetermined position of the storage rack 4. Then, the stored product inputs shipping information such as the type and quantity of the product through the input means such as the barcode reader 1 based on the request from the shipping destination, and drives the stacker crane 3 through the computer 2. After the corresponding product is unloaded from the storage rack 4, the product is manually placed on a transportation jig such as a pallet and the entire pallet is loaded on a transportation means such as a truck.

In this method, when the sorting work for shipping is complicated and time-consuming, and sorting work for multiple shipping destinations is performed in parallel or in tandem in a limited place,
The sorting work becomes more complicated. Further, if the shipping and sorting work takes a long time and the time required by the shipping destination is significantly behind the time to carry in the finished product, the storage capacity of the storage rack 4 may be insufficient. I had to increase the storage capacity of the.

In order to solve such a problem, a physical distribution management system that automates shipping and sorting work has been proposed. (Eg,
(See Japanese Laid-Open Patent Publication No. 62-27202) This distribution management system includes a shipping destination information table that stores information about the type and quantity of goods required by the shipping destination, and a shipping quantity and an inventory quantity corresponding to the shipping destination. And a storage / receipt information table in which the information of the above is stored, the shipment destination of the conveyed goods is determined according to the article identification information and the storage / receipt information table, and a storage instruction to store in the storage compartment corresponding to the shipment destination is output. In addition, when the requested quantity of the shipping destination matches the stock quantity of the storage section corresponding to the shipping destination, a shipping instruction is output, and the shipping / unloading control device rewrites the contents of the shipping / unloading information table. In this physical distribution management system, the goods to be carried in are automatically stored in the storage compartment at the position determined by the goods information input means, the storage / receipt control device, and the shipping destination information table in correspondence with the shipping destination requesting the goods. When the stock is received and the number of stocks of each section in the storage reaches the required quantity of the shipping destination, the stock is automatically issued.

That is, since the goods are sorted and stored in the storage compartments determined according to the shipping destination at the time of warehousing, at the time of shipping, the articles are sorted in accordance with the request of the shipping destination by simply leaving the storage compartments. Items are ready for shipment immediately.

[Problems to be solved by the invention]

The conventional system has a predetermined article storage position,
It has two information tables of the stock position for each article, and it performs information retrieval of which section to put in or out of when entering and exiting from where the article should be put in and out in order by repeating processing. Was there.

Therefore, the processing unit requires a computer capable of repeating processing, and an inexpensive and easy-to-handle device configuration has been desired.

An object of the present invention is to provide a physical distribution management system that searches a section position at the time of loading and unloading of goods by pointer processing.

[Means for solving problems]

In order to achieve the above-mentioned object, the present invention is a storage box provided with a rack shelf having a predetermined section corresponding to the article identification information, an article identification information input device for inputting identification information of articles to be put in and taken out, A first information table storing partition position information for article identification information to be stored, a second information table storing inventory position information for article identification information, and a third information table storing article identification information for partition position. A storage unit having an information table, an entry / exit section search unit that searches a section to be entered from the first information table when entering, and an exit section that searches the section of the article to be exited from the second information table when exiting, the section and the article An arithmetic unit that obtains an offset value for pulling out by contrasting with the identification information, and at the time of warehousing, it should be warehousing searched by the third information table using the offset value An inventory judgment unit that selects an out-of-stock section from the image, while selecting an out-of-stock section from the section of the retrieved article when the article is issued, and an article according to the section information from the inventory determination section And outputs a command signal for loading and unloading
And a storage / receipt control device having an information control unit including an input / output unit for updating the third information table, and a storage / receipt device for storing or taking out the article from the division based on the command signal. ing.

[Action]

According to the above configuration, the warehousing / discharging control device searches the first information table for a section to be stored in correspondence with the article identification information at the time of storage, and stores the goods using the offset value obtained from this section information. The third information table is used to check that there is no article in the section to be discharged, and when the article is to be unloaded, the section for the article to be unloaded is searched from the second information table. Examine the parcel where it is. Then, a command signal for loading and unloading the relevant article is output to the loading and unloading device, and the article identification information and the inventory position information regarding the article to be loaded and unloaded in the second and third information tables are updated.

〔Example〕

 Embodiments of the present invention will be described below with reference to the drawings.

As shown in FIG. 4, the article 101 is carried into the hangar 40 from the production line via the carry-in conveyor 100A. The article 101 to be carried in is read by the article identification information input device 10A on the warehousing side, for example, a barcode display attached to the article is read by a barcode reader, and processed by the warehousing / leaving control device 20 to manage each article type. The article information is stored in the storage unit, and at the same time, the storage unit that is predetermined by the storage device 30.
It is stored in 40 division positions (rows, floors). As shown in FIG. 5, the hangar 40 is three-dimensionally provided with compartments for each type of article, and includes, for example, a first storage section 40a and a second storage section 40b that are arranged to face each other, and each section has four rows and four rows. It has a three-dimensional structure on the floor. The article 101 is specified by the number of the storage section and the floor.

The article identification information input device 10 is composed of a shipping-side input device 10A that reads in-stored product information and a shipping-side input device 10B that reads in-stored product information, and product information such as a bar code attached to the product. Read.

As shown in FIG. 2, the warehousing / dispatching control device 20 stores information (first information table) A on which article information which can be set and changed in advance, that is, which partition position of the warehousing for the identification information of the article is stored. Stored storage position information storage unit 21
And a stock position information storage unit 22 in which information (second information table) B indicating where in the storage section (stock position) of the stored product is stored, and which product is stored in the storage position In order to store the article identification information storage unit 23 for the stock position in which the information (third information table) C is stored and the article to be carried in in a predetermined section, or to carry out the article from the predetermined section to a shipping destination. An information control unit that outputs a command signal c to the loading / unloading device 30 and updates the information stored in the storage unit based on the input signals a and b relating to the articles to be loaded / unloaded.
It consists of 24 and.

As shown in FIG. 3, the information control unit 24 issues a command for information processing by input signals a and b related to the article identification information, and outputs a command signal c based on the result of the information processing to the storage apparatus 30. And an input / output section 25 for instructing to rewrite the information table, a loading / unloading section searching section 26 for checking a loading / unloading section based on the article identification information, and an inventory status of the section to be stored, the section and the article identification information. In contrast to the above, the calculation unit 27 that obtains the offset value for drawing out from the third information table and the presence / absence of inventory of the target article section from the entry / exit section retrieved by the entry / exit section retrieval unit 26 are checked. It comprises a stock judgment unit 28 which outputs the section position information in the empty state for the article at the time of warehousing and outputs the section position information of the article at the time of warehousing.

As the loading / unloading device 30, a stacker crane that travels automatically is applied, receives the articles 101 carried in by the conveyor 100A according to the command signal c from the loading / unloading control device 20, and receives the articles at the storage position designated for each article in the hangar 40. While the articles 101 are stored in the
Carry out with 00B.

Next, specific information stored in each storage unit will be described.

As shown in FIG. 6A, the warehousing position information storage unit 21 stores a first information table 60 that specifies the compartment positions to be warehousing corresponding to the types of articles.

That is, it stores the information A indicating in which partition position (column ○ floor) of the warehousing item 40 the item of the item identification information i is stored. For example, in the case of the item identification information item i = 2,
Pre-coded numbers for 40 compartment positions, 21 (2 columns 1
There are 3 places: floor (2nd floor, 2nd floor), 22 (third row, 2nd floor).

As shown in FIG. 6 (b), the inventory position information storage unit 22 stores a second information table 70 that identifies the division position of the stored goods. That is, the item identification information i
The information B _{ij in} which the article is in the division position is stored. For example, in the case of the item with the item identification information i = 2, the section position in which the item is stored is a coded value of 12 in advance.
There are two locations (1st row, 1st floor) and 32 (3rd row, 2nd floor). In addition,
B _ij = 0 means that the section is out of stock.

As shown in FIG. 6 (c), the article identification information storage unit 23 stores a third information table 80 for identifying an article corresponding to a division position. For example, in the case of k = 9, the partition position 21 (2nd row, 1st floor) indicates that the article of the article identification information i = 4 is stored. Note that 0 indicates that there is no article in the section.

 Next, the operation of the information control unit will be described.

(Receiving Process) In FIG. 7A, the type of the article 101 sent by the carry-in conveyor 100A is read, and the article identifying information i is input to the entering article identifying information input device 10A (step 20).
1). Then, the information control unit 24 retrieves the section position A _{ij in} which the article 101 should be stored from the article identification information i by using the first information table 60 stored in the storage unit (step 202). In this search processing, as shown in FIG. 7, as the article identification information i, a section A to be stored at a position offset by i is extracted from the table 60 (step 25).
0).

Subsequently, the article in the section A _ij should receipts already stored from the third information table 80 by using the offset value kj to determine whether containing the article in the section position A _ij C
Extract kj (step 251). Where the offset value k
j is _calculated from the section A _ij to be stored by the following formula.

_{kj = (H (A ij)} -1) × 8 + L (A ij) where, H (A _ij): (corresponding to a column of compartments) left numeric code _{A ij L (A ij):} A ij Code On the right side (corresponding to the floor of the section) and it is determined from Ckj whether or not articles are stored in the section (steps 252- to 252-3). Step
If YES (Ckj = 0) in 252, there is no article in the section, so the section position A _{ij in} which the article of the article identification information i should be stored is set (step 254). On the other hand, in the case of NO (Ckj ≠ 0) in step 252, since the article has already been placed in that section, the process without the storage location (step 253) is performed and the process ends.

In step 254, when the section into which the article is to be stored is determined, a command signal corresponding to the storage position is output to the storage / receipt device 30 (step 203). Then, the carry-in conveyor 1
Item 101 received from 00A, designated compartment of hangar 40
The goods are stored in _Aij (step 204). After that, the second information table 70 has a section B containing the article of the article identification information i.
_ij , and newly stored inventory item identification information Ckj in the third information table 80 (step 20).
Five).

Next, a specific example of the warehousing process will be described with the article having the article identification information i = 2.

First, the article of i = 2 is coded in three sections A _ij to be stored in advance in the first information table 60 (A ₂₁ = 21, A ₂₂
= 22, A ₂₃ = 32). In addition, division position A
_The item ₂₁ is also used to store the item identification information i = 1,4. Section A to be received from this first information table 60
₂₁ , A ₂₂ , A ₂₃ are extracted. And the third information table 80
The offset value kj (j = 1,2,3) is obtained in order to check whether or not there is an article in the section A _ij to be stored.

_{k 1 = (H (A 21} ) -1) × 8 + L (A 21) = 9 k 2 = (H (A 22) -1) × 8 + L (A 22) = 10 k 3 = (H (A 23) - 1) × 8 + L (A ₂₃ ) = 18 Using the offset values k ₁ , k ₂ , and k ₃ from the third information table 80, the partition positions A ₂₁ , A ₂₂ , and A _{23 are} stored articles C ₉ and C
Examine ₁₀ and C ₁₈ . As a result, from C ₉ = 4, C ₁₀ = φ, C ₁₈ = 2, it is possible to know the presence or absence of the articles stored in each section and the types thereof. That is, the sections A ₂₁ and A ₂₃ are already in the article identification information i.
= 4 and 2 articles are stored. On the other hand, since the section A ₂₂ is empty from C ₁₀ = 0, the newly loaded article with the article identification information i = 2 is stored therein. At the same time, the second
Of the information table 70 of the item identification information i = 2 is updated to the code “22” in the inventory position B ₂₃ of the article, and the third information table 80 is updated to the code “2” as the inventory item identification information of the offset value k = 10. To be done.

(Outgoing processing) In FIG. 2, the stock position in which the articles to be taken out from the entering / leaving control apparatus 20 are instructed to the entering / leaving apparatus 30 on the basis of the article identification information i input from the exit side input device 10B. Conveyor 1 for carrying out articles 101 taken out from the compartment 1
Put it on 00B.

In the shipping process, as shown in FIG. 7B, the identification information i of the article to be shipped is input from the shipping side input device 10B (step 301). Next, the second information table 70 is used to search which section the article is in (step 302). In this search process, as shown in FIG. 9, the (stock position) information B _ij at a position offset by i is extracted from the second information table 70 as the item identification information i (step 350). Then, steps 351-1 to 351-3
At, it is checked from the information B _ij whether there is an inventory in the section A. In the case of YES (B _ij = 0), there is no stock in that section, so processing without stock of goods is performed (step 35).
2).

On the other hand, in the case of No (B _ij ≠ 0), since there is inventory in the section A _ij , that section becomes the delivery position of the article of the article identification information i (step 353). Then, when the section in which the relevant article is to be stored is determined, the section information B _ij is stored in the storage apparatus 3
Instruct 0 (step 303). The loading / unloading device 30 takes out the article from the storage 40 in accordance with the instruction, and carries out the unloading conveyor 10
Place on 0B (step 304). After the shipping is completed normally, the second and third information tables 70 and 80 are updated (step 305). This update process is performed by the second information table 70.
In, the code "0" is assigned to the empty section
Further, the identification information i of the articles stored in the section of the third information table 80 is set to the code “0”.

Next, a specific example of the shipping process will be described by using the item with the item identification information i = 2.

First, B ₂₁ = 12, B ₂₂ = 32, and B ₂₃ = 0 are obtained from the second information table 70 as the inventory position of the article of i = 2. This B _2j
Corresponds to the section A _2j in which the item of i = 2 is stored, so if B _2j = 0, there is no stock in the section A _2j , while B
_{If 2j} ≠ 0, there is inventory in section A _2j . Therefore,
Since there are stocks in the sections A ₂₁ = 12 and A ₂₂ = 32 for B ₂₁ and B ₂₂ , a delivery order for a predetermined stock position, for example, j = 1 is designated, and section A ₂₁ = 12, that is, one column 2 Departed from the floor.

Inventory position information B in the second information table 70 after the goods have finished shipping
₂₁ to B ₂₁ = 0, offset value k of the third information table 80
The inventory item identification information at the inventory position of = 2 is updated with code "0", that is, without inventory.

〔The invention's effect〕

As described above, according to the present invention, the inventory information search is performed by the pointer processing, so that the information control unit of the warehousing / dispatching control device can be configured by the programmable controller, the maintenance is facilitated, and the reliability is improved. It is cheap.

[Brief description of drawings]

FIG. 1 is a diagram showing a basic configuration of the present invention, FIG. 2 is a diagram showing a configuration of a warehousing / leaving control device, FIG. 3 is a diagram showing a basic configuration of an information control unit constituting the warehousing / leaving control device, and FIG. FIG. 6 is a block diagram for explaining the system of the present invention, FIG. 5 is a diagram for explaining a hangar, and FIGS. 6A, 6B, and 6C are first to third information tables stored in the storage unit. FIG. 7 (a) and FIG. 7 (b) are diagrams showing the flow of the loading / unloading process, FIG. 8 is a diagram showing the flow of the loading / unloading position search process of FIG. 7 (a), and FIG. FIG. 10 is a diagram showing a flow of inventory position search processing, and FIG. 10 is a diagram for explaining a conventional article management system. 10A, 10B ... Entry / exit article identification information input device, 20 ... Entry / exit control device, 20a ... Storage unit for storing first information table, 20b ... Storage unit for storing second information table , 20c ... storage unit for storing the third information table, 20d ... information control unit, 30 ... storage device, 40 ... storage unit.

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Yasuhiro Ikeno 3-20 Kinugahara, Toyota-shi, Aichi Shinmei Kogyo Co., Ltd. (56) References JP 61-197305 (JP, A) JP SHO 62-27202 (JP, A) JP-A 61-257802 (JP, A) JP-A 63-27303 (JP, A) JP-A 63-97504 (JP, A) JP-A 63-242804 (JP, A) A)

Claims (2)

(57) [Claims] 1. A warehousing having rack shelves having predetermined sections corresponding to article identification information, an article identification information input device for inputting identification information of articles to be loaded and unloaded, and a warehouse for article identification information. A storage unit having a first information table in which partition position information is stored, a second information table in which inventory position information for article identification information is stored, and a third information table in which article identification information for partition position is stored, An entry / exit section search unit that searches for a section to be entered from the first information table at the time of entering, and searches a section of the article to be exited from the second information table at the time of exit, comparing the section with the item identification information. A calculation unit that obtains an offset value for pulling out, and at the time of warehousing, there is no stock in the warehousing section searched by the third information table using the offset value. On the other hand, at the time of warehousing, an inventory judgment section for selecting a section in stock from the searched section of the article to be discharged, and a command signal for loading and unloading the article is output according to the section information from the inventory judgment section. In addition, a storage / receipt control device having an information control unit including an input / output unit that updates the second and third information tables corresponding to the storage / separation products, and the products are divided based on the command signal. A physical distribution management system comprising: a storage device for storing in or out of a compartment. 2. The physical distribution management system according to claim 1, wherein the information control unit is a programmable controller.