JPH10218317A - Method and device for inventory management - Google Patents

Abstract

PROBLEM TO BE SOLVED: To perform management to cover the time based on the number of stocks and article-related information until the number of articles in a stock at a new input time runs out even when parts in a pass box outputted to a manufacturing line remain. SOLUTION: A stock managing film is prepared to specify the number of stocks in a storage place, consisting of the number of article containing pass boxes at a point of time when the pass box is present in a storage place and the number of article containing pass boxes at a point of time when the pass box is absent in a storage place, from a discriminate code individually marked on each pass box. The number of article containing pass boxes is set at the number of stocks in a storage place corresponding to the discrimination codes of input pass boxes during input of new articles and the number of stocks in a storage place is set to 0 (step 1). By subtracting the current number of consumed articles from the number of stocks in a storage place for outputting pass boxes, the number of stocks in a storage place for an output pass box is written. The number of socks in a storage place for an output pass box is set to 0 (step 6). Based on the number of stocks in each stock plate and the number of stocks outside a storage place corresponding to all discrimination codes, the number of stocks is determined.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an inventory management method and apparatus for performing inventory management for each box in which articles such as used parts, products, etc. are stored in the warehouse management in an automatic warehouse or the like.

[0002]

2. Description of the Related Art A logistics system for managing inventory of used parts and products by linking an automatic warehouse and the like with a supply and storage system of used parts and a product storage and retrieval system on a production line of a factory has become common. As shown in FIG. 5, planning data such as a storage and retrieval plan, a storage plan, and a transportation plan of the entire system are registered in a minicomputer 2 as a central processing unit, and a storage control microcontroller connected to the minicomputer 2. The computer 3 and the delivery control microcomputer 4 are operated based on the registered storage plan and transfer plan, and the number of stocks in the stock management file 2a provided in the minicomputer 2 is calculated.
In addition, the data is managed together with key items (part number, product name, etc.) for specifying the article based on the incoming data and outgoing data from the outgoing side control microcomputer 4. That is, the data is written and stored in the inventory management file 2a as a positive number of stocks when the warehousing is completed, and as a negative number when the warehousing is completed. The stock number is calculated by adding the data of the stock management file 2a for each key item in the order of the older data, and is displayed on the management terminal 1.

[0003]

In the prior art, inventory management is performed based on the number of incoming and outgoing inventory from an inventory storage location. This simplifies the management method, but on the other hand, manages the number of inventories and manages goods. The management of data (supplier, defective product location, date and time, etc.) has the following disadvantages.

(1) Problems in managing the number of stocks In the conventional system in which the stock number of a positive number and the stock number of a negative number are written and stored in a stock management file, it is assumed that all of the delivered products are used up. It has become. However, if the number of articles stored in the box for article storage conveyed from the supplier is unavoidably larger than the number of articles used at one time, the goods cannot be used up at one delivery and will be treated as re-entry. Will be.
In this case, the unused articles in the box are present in the factory from the delivery to the re-entry, but are not added to the stock quantity, and the stock accuracy of the entire factory deteriorates. And, of course, the ordering accuracy performed based on the stock quantity also deteriorates, and the surplus stock increases.

[0005] In the prior art, a means for preventing this problem is to take out only a required number of storage boxes from the storage bins at the time of unloading and refill them into the transport bins in the factory. Must be located at each inventory storage location. (2) Problems in Management of Entry / Exit Information In the related art, a re-entry product returned to a storage location without being used at an article use location is regarded as being the same as a newly-entered product. That is, it is not possible to link and manage the article data until one article box is received from a supplier and the number of articles stored in the article box is reduced to zero by repeating shipping and re-shipping.

[0006] This is because when the same product is placed in a plurality of boxes, when a problem occurs in the product and the cause is sought from the component, when the component is manufactured by the supplier, It is not possible to specify when a product using this part was manufactured and in which box the part was stored. An object of the present invention is to provide an inventory management method and an inventory management method in which articles in stock, which are handled as re-shipment, are reflected in the number of stocks, and article data can be connected and managed from the arrival of articles to the end of use. And

[0007]

In order to solve the above-mentioned problems, the present inventor specifies a pass box in which articles are stored by attaching an identification code thereto, and stores article data in the pass box corresponding to the identification code. In the present invention, it is confirmed that by providing items divided into the number of stocks in the storage place and the number of stocks outside the storage place, and managing the goods in units of boxes, it is possible to manage the goods from the time they are received until the goods are used up. Reached.

In other words, the technical means according to the first aspect of the present invention solves the above-mentioned problem. According to the first aspect of the present invention, the storage means is stored in a storage box in a predetermined storage place and stored in the storage box. In the inventory management method for articles released from a warehouse, an identification code individually assigned to each pass box and the number of articles stored in the pass box at the time when the pass box specified by the identification code exists in the storage location And in-box article data including the number of articles stored in the pass box at the time when the pass box specified by the identification code does not exist in the storage location. Is provided in the storage location corresponding to the identification code of the incoming bin when a new bin is received at the storage location. The above-mentioned Set the article storage number of the inner,
In addition, the out-of-storage inventory number corresponding to the identification code of the incoming box is set to 0, and when the storage box is to be unloaded from the storage location, the number corresponds to the identification code of the unloaded storage box. The number of articles used this time is subtracted from the stock number in the storage location, and the number is written to the stock number outside the storage location corresponding to the identification code of the box to be taken out and corresponds to the identification code of the box to be taken out. Setting the stock quantity in the storage location to 0,
The total number of articles in the storage location and the total number of articles outside the storage location are calculated based on the stock quantity in each storage location and the stock quantity in each storage location corresponding to all identification codes.

According to the inventory management method having the above-described method configuration, an identification code is individually assigned to each pass box, and the article data in the pass box specified by the ID code is specified by the ID code. The number of articles stored in the storage box at the point in time when the box is present in the storage area, and the number of items in the storage box when the box specified by the identification code does not exist in the storage area. By providing an item that is divided into the number of articles stored in the box and the number of articles stored outside the storage location, a data area for managing the number of articles stored in each pass box is secured.

[0010] By securing the data area, the number of articles stored in the storage box is set to the stock number in the storage location corresponding to the identification code of the newly received storage box, and the goods are received. If the above-mentioned stock number outside the storage location corresponding to the identification code of the pass-through box is set to 0, the stock quantity for the new arrival can be added to the stock quantity up to now, and the total stock quantity if the stock quantity in the storage place is totaled. Can understand.

When the box in the storage location is delivered out of the storage location, the number of articles to be used this time is subtracted from the stock number in the storage location corresponding to the identification code of the box to be delivered. If the number of stocks outside the storage location corresponding to the identification code of the box to be delivered is written and the number of stocks in the storage location corresponding to the identification code of the box to be delivered is set to 0, the time of delivery However, if the total number of seats outside the storage area corresponding to the identification code of the box that was issued and the number of stocks in the storage area corresponding to the identification code of the box in the storage area are aggregated, the planned number of uses is reduced this time. The actual total stock number can be grasped.

[0012] The technical means according to the second aspect of the present invention is that the returned bin is returned to the storage location, that is, at the time of re-entry, the bin corresponding to the identification code of the bin entered. The present invention is to set the number of articles stored in the storage box to the stock number in the storage location, and to set the stock quantity outside the storage location corresponding to the identification code of the incoming storage box to zero.

[0013] The invention of claim 2 is an inventory management method on the premise of re-stocking, wherein the number of stocks outside the storage location corresponding to the identification code of the pass-through box in which a surplus product has occurred outside the storage location at the time of re-stocking. Since the number of surplus items is set in, the total number of articles that has been restocked can be added to the total inventory.
The technical means according to the third aspect of the present invention is to delete the article data in the pass box corresponding to the identification code of the pass box in which the number of stored articles is 0. As a result, the stock quantity outside the storage location corresponding to the identification code of the empty bin is not counted. For example, the actual use quantity outside the storage place exceeds the scheduled use quantity at the time of delivery, and the article storage quantity becomes zero. , The stock quantity outside the storage location corresponding to the identification code of the return box is corrected from non-zero to zero, so that no error occurs in the total stock quantity.

According to a fourth aspect of the present invention, there is provided the technical means according to the first aspect of the present invention, wherein the storage history of a newly arrived pass-by box is stored for each pass-through box, and the arrival information of articles in each pass-out box is stored. , By the identification code and the storage means. According to the operation of the fourth aspect of the present invention, the arrival history is stored in association with the identification code for each new arrival pass box,
The arrival information of the pass box is calculated based on the identification code and the arrival history. Therefore, it is possible to specify when and which goods are delivered from which supplier. For example, when a defective product is found, identification of the arrival date and time of the defective product and a return box containing the defective product can be specified. Can be identified, and appropriate measures can be taken for these. The technical means described in the fifth aspect of the invention is an independent description of the technical means of the fourth aspect without depending on the first to third aspects.

The technical means according to the invention of claim 6 is that, when unpacking the pass-through box, the boxes are delivered in the order of arrival date and time which is determined from the receipt history. According to the operation of the sixth aspect of the present invention, it is possible to comply with the first-in first-out order by arranging the articles in the order of arrival date and time. In addition, when a defective product is found, it is possible to specify in which process the product before and after the arrival date of the product is currently located, and to take appropriate measures for these products.

According to a seventh aspect of the present invention, there is provided the technical method according to the first aspect of the present invention.
The technical means described in claim 8 is the one in which the method invention of claim 2 is adopted as an apparatus invention. The functions of the inventions of claims 7 and 8 are as follows.
It can be easily configured by automatic control means such as a computer system which only electrically reads out only the identification code attached to the pass-through box.

The technical means described in the ninth aspect of the present invention is that the method invention of the fifth aspect is used as an apparatus invention.

[0018]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An inventory management method according to a first embodiment of the present invention includes: 1) an identification code individually assigned to each box;
The number of stocks in the storage location consisting of the number of articles stored in the pass box at the time when the pass box specified by the identification code is present in the storage location, and the pass box specified by the identification code does not exist in the storage location A storage means is provided which can individually store the in-box article data including the number of articles stored in the box at the time and the number of stock outside the storage area for each of the boxes. 2) Newly received articles 3) read the identification code of the identification tag, secure an area for article data in the storage box in the storage means, and 4) read the identification code of the identification tag, and The number of articles stored in the bin is set to the inventory number in the storage location corresponding to the identification code of the box, and the inventory number outside the storage location corresponding to the identification code of the bin to be stored is set to 0. 5)
When the box is taken out of the storage place, the number of stocks to be used in this time out of the total stock in the storage place is determined, and the storage unit is searched to select the box to be taken out. ) Substituting 0 for the stock number in the inventory management location corresponding to the selected pass box identification code, and replacing the surplus number in the pass box (the selected (The number of articles stored in the box-the number used this time).

Next, 7) When the article is used outside the storage location and the number of articles stored in the box becomes 0, the identification slip is removed and the article data in the box corresponding to this identification code is deleted. In the case of re-entry, where the exited bin is returned to the storage location, 1) the surplus number in the storage bin is added to the stock number in the storage location corresponding to the identification code of the bin used for the required number outside the storage location. Substituting as the number of stored articles, 2) Substituting 0 into the stock number outside the storage location corresponding to the identification code, and returning the pass box to the storage location.

The second embodiment of the inventory management method according to the present invention is as follows: 1) A storage capable of storing an identification code individually assigned to each bin and a receiving history of a newly arrived bin for each bin. Means; 2) attaching an identification tag having an individual identification code to each newly arrived box; 3) reading the identification code of the identification tag and securing an area of the arrival history data in the storage means;
4) Based on the arrival history and the identification code, arrival information (arrival date, supplier, etc.) for each pass box is individually calculated.

One embodiment of the inventory control device of the present invention is a means for attaching an identification code such as an individual identification number to each pass box when receiving a pass in a pass box in which articles are stored; The identification code individually assigned, the number of stocks in the storage location consisting of the number of articles stored in the pass box at the time when the pass box specified by the identification code is present in the storage location, and the identification code is specified by the identification code. An inventory management file that can store the in-box article data including the number of articles stored in the box at the point in time when the box is not present in the storage location, and the in-box article data for each of the boxes. Reading means for reading the identification code, and the number of articles stored based on the identification code read by the reading means at the time of new arrival of the box is stored as the number of storages and the storage location of the box. What The entry-side control computer for instructing storage, and the number of articles to be used this time at the time of exit from the storage location are input, and the identification code of the box selected based on the number of articles is read to determine the number of articles stored in the box. The number of articles stored in the pass-through box is stored by storing the number as the number of deliveries, and by reading the identification code of the pass-through box that is returned to the storage place after the required number is taken out of the storage place and the necessary number is taken out of the storage place. Corresponds to the re-entry-side control computer that stores the number as the number of storages and issues a command to return to the storage location, and when a new pass-through box is received, corresponds to the identification code of the pass-in box that is received by the command of the storage-side control computer The number of articles stored is set to the number of stocks in the storage location, and the number of stocks outside the storage location corresponding to the identification code of the box to be stored is set to 0.
When the box is taken out of the storage location, the number of articles to be used this time is subtracted from the stock number in the storage location corresponding to the identification code of the box in accordance with the command of the delivery side control computer when the box is taken out of the storage location. While writing in the stock number outside the storage location corresponding to the identification code of the box to be delivered, the stock number in the storage location of the box to be delivered is set to 0, and the delivered box is stored in the storage location. Upon returning, the command of the re-entry side control computer sets the number of articles stored in the storage box to the stock number in the storage location corresponding to the identification code of the storage box to be stored, and the storage box to be stored. The number of stocks outside the storage location corresponding to the identification code is set to 0, and when searching for the number of stocks, based on the number of stocks in the storage location and the number of stocks outside the storage location corresponding to all the identification codes, Total goods in the storage location Consisting of a central processing computer for calculating the article total number of storage locations outside the.

The means for assigning the identification code uses an electrically rewritable sheet, for example, a magnetic sheet, a magneto-optical sheet, or the like as an identification tag, and manually attaches the identification tag to a pass-through box, or attaches a protective cover. It may be provided and permanently bonded to the pass box, and inventory information may be written at the time of entry or at the supplier. In this case, when the identification tag is read, an area of the article data in the pass box is prepared in the inventory management file. The item data in the box of the inventory management file is identified by the identification code at the top,
It consists of the product number, the supplier, the stock quantity in the storage location and the stock quantity outside the storage location of the stock quantity, arrival date and time, delivery date and time, delivery destination, and the like.

The reading means for reading the identification tag is connected to the entry-side control computer, the exit-side control computer or the re-entry-side control computer, so that the read identification code is taken in via the input / output device of each control computer. I do. The storage location is a storage facility such as an automatic warehouse, and the use location is a production line, an inspection line, or the like.

The inventory management file is written into a large-capacity semiconductor memory or a large-capacity memory such as a magnetic drum or a magnetic disk, and these are incorporated so as to be accessible by a central processing computer constituted by a minicomputer or the like. The entry-side control computer, the re-entry-side control computer, and the exit-side control computer use a microcomputer to detect passage of a pass box in conjunction with a conveyor of a transport facility, and decode the identification code read by the reading means.

The second embodiment of the inventory management device of the present invention has an identification code initialization device for deleting the article data in the pass box corresponding to the pass code of the pass box in which the number of stored articles is 0. .

[0026]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment showing a specific example of the inventory management method and apparatus of the present invention will be described below with reference to FIGS. FIG. 1 is a schematic diagram of the equipment arrangement and equipment of the above embodiment, and an automatic warehouse 11 capable of automatic storage, sorting, and shipping of bins is equivalent to a storage location of the present invention, and each of the new storage conveyors. 11A, a re-entry conveyor 11B and an unloading conveyor 11C are arranged in a factory, that is, a parts use location 10 corresponding to outside the storage location of the present invention. Parts to be supplied to the production line as articles from the supplier are conveyed to the new incoming conveyor 11A in a state where a predetermined number of parts are stored in a passing box. The re-conveying conveyor 11B and the unloading conveyor 11C have these conveyors 11B, 11C, respectively.
For example, a transfer facility 20 of a robot vehicle is provided for reciprocating between a part and a predetermined manufacturing line in the storage place 10, and the part is transferred from the part use place 10 to the re-entry conveyor 11B or from the unloading conveyor 11C. .

An identification tag 3 as shown in FIG.
0 is added on the new incoming conveyor 11A. A bar code representing the pass box identification code is printed on the identification slip. Based on this identification code, a system for controlling the inventory management for each bin and the movement of the bin between the automatic warehouse 11 and the parts use location 10 is configured as follows. The inventory management of the automatic warehouse 11 is performed by a central processing computer 12 as a factory server computer. The central processing computer 12 is connected to the entry-side control computer 14, the re-entry-side control computer 15 and the exit-side control computer 16 via a bus line 13, and also to a management terminal 21 having a display. The input side control computer 14, the re-entry side control computer 15 and the exit side control computer 16 are connected to the data input / output devices 17 connected to the bus line 13, respectively.
The reading outputs from the reading devices 22 to 24 for the identification code can be input through.

The central processing computer 12 has
The in-box component data having the configuration shown in FIG. 3 is accessible to the inventory management file for each box. The configuration of the in-box part data includes a product number, a receipt, supplier information, a stock number 31 in the storage location, a stock quantity 32 outside the storage location, a storage date and time,
It consists of a delivery date and time, a delivery destination, and the like, and the part data in the pass box can be read with an identification code.

Next, the operation on the hardware in the above-mentioned inventory management device will be briefly described. <Operation Relationship Between Receiving-Side Control Computer 14 and Central Processing Computer 12> The receiving-side control computer 14 cooperates with the new receiving conveyor 11A to store the received bins in a predetermined rack of the automatic warehouse 11. . At that time, the box that has been stored has the identification code of the identification tag 30 read by the reader 2.
2 is read. After decoding the identification code read by the reader 22, the storage control computer 14 sends a command to the central processing computer 12 to request transmission of the number of articles stored in the pass-through box. This request is displayed on the management terminal 21, and the in-box part data shown in FIG. 3 is written in the inventory management file of the central processing computer 12 by a key input operation. As a result, the in-box part data corresponding to the identification code of the newly received box is prepared. At this time, the determined number of stored parts is substituted for the stock number in the stock storage location, and is also stored as the stock number in the stock control computer 14. Note that the number of parts stored is written in the stock quantity in the stock storage location, but 0
Is set.

<Operational Relationship between the Outgoing-Side Control Computer 16 and the Central Processing Computer 12> The outgoing-side control computer 16 receives the outgoing request from the component use location 10,
An instruction is given to the central processing computer 12 as to the number of parts to be used this time. The central processing computer 12 displays on the management terminal 21 a message for inputting the scheduled use number this time. When a key input operation is performed in response to this, the central processing computer 12 searches the inventory management file based on the planned number of use this time, selects the oldest delivery box with the oldest arrival date and time from the automatic warehouse 11, The control computer 16 is instructed on the number to be used this time, and the number to be used this time is subtracted from the stock number 31 in the storage location corresponding to the identification code of the selected pass box, and the result is written to the corresponding stock number 32 outside the storage location. And the stock quantity 31 in the storage location is set to 0. The exit-side control computer 16 stores the scheduled use number this time, and issues a command to exit the bin selected by the instruction to the exit conveyor 11C. <Operational Relationship between Re-entry Side Control Computer 15 and Central Processing Computer 12> Re-entry Side Control Computer 15
When the pass-through box having surplus items returns from the parts use place 10, the read identification code is decoded and the central processing computer 12 is requested to transmit the surplus number of pass-through parts. The central processing computer 12 sends a message to that effect to the management terminal 2
1 is displayed, and the in-box part data is determined by a key input operation corresponding thereto. Here, the parts use location 10
If the actual number of items used in the storage is different from the expected number of items used, the number of parts in the storage box in stock in the storage location can be corrected by the key operation.

By the way, the central processing computer 12 can search the stock quantity of the whole factory including the automatic warehouse 11 at the time of new entry, exit, and re-entry.
The search of the stock quantity is executed by operating the stock quantity search key to the central processing computer 12. The central processing computer 12 totals the stock numbers 31 in each storage location and the stock quantities 32 outside the storage locations corresponding to all the identification codes by operating the stock number search key. Thus, the inventory quantity without omission, which is composed of the total number of articles in the automatic warehouse 11 and the total number of articles at the parts use location, can be calculated.

Further, the central processing computer 12 processes the stock quantity 31 in the storage location and the stock quantity 32 out of the storage location in accordance with the identification code. Can be connected, and accurate management can be performed from the time of new storage until the parts are used up. <Other First Embodiment> The above embodiment is based on the premise that a return box with surplus parts returns from the parts use location 10,
Although the re-entry side control computer 15 and the conveyor 11B are provided, these components can be omitted when re-entry is not performed. In other words, the number of articles stored in the return box transported from the supplier, even if it is not assumed that the goods will be re-stocked, the number of goods leaving the factory tends to be estimated more than the planned number of uses. , Parts will remain at the place of use 10. Therefore, in order to count the number of parts remaining in the use place 10 as the number of stocks, the stock data 31 in the storage place and the stock quantity 32 outside the storage place are provided in the box data in the box corresponding to the identification code of the box. The same inventory management as in the case where there is a storage is possible.

In addition, when all the parts of the returned box are used, the identification tag 30 may be removed from the box. Empty identification tags are collected in the identification tag storage 25 together with the pass box,
The identification code initialization device 26 collectively reads the identification codes of the empty identification slips, and instructs the central processing computer 12 to delete the part data in the box. Here, the central processing computer 12 searches the inventory management file and deletes the area of the in-box component data corresponding to the corresponding identification code.
This is to correct the non-storage inventory number from non-zero to zero when the actual usage number outside the storage location is greater than the planned usage number at the time of leaving the warehouse and the number of parts stored in the box becomes zero. As a result, even if the number of restocked parts is reduced for an unavoidable reason, inventory management can be performed until the parts are used up. <Embodiment of Inventory Management Method> The inventory management device of FIG.
A human operation can be inserted and used in the inventory management method of the present invention. Hereinafter, one embodiment will be described with reference to FIG. 4 and FIGS.

(New Warehousing) Step 1: When stock items are received from a supplier, a person attaches an individual identification tag 30 to each pass box 1. Step 2: Conveyor 1 from new entrance of automatic warehouse 11
The reader 22 reads the identification code of the pass box placed on 1A.

Step 3: Receiving-side control computer 14
Prompts the user to input the in-box part data corresponding to the identification code of the box. Step 4: When the number of storages is determined, the identification code and the in-box part data are stored in association with the management files of the storage-side control computer 14 and the central processing computer 12. The stock quantity at this time is written in the stock quantity 31 in the storage location of the stock management file. At the same time out-of-storage inventory 3
Set 2 to 0.

(Retrieval) Step 5: When there is a retrieval request from the part use place, the retrieval side control computer 14 sends the central processing computer 1
The user is prompted to transmit the scheduled number of use to this time. Step 6: Search the inventory management file for the in-box part data corresponding to the identification code of the box that has been delivered by the determination of delivery from the inventory management file, subtract the current planned use number from the stock number 31 in the storage location, and store the result in the storage location. Write to the outside stock quantity and set the stock quantity in the storage location to 0.

Step 7: Outgoing side control computer 16
Is supplied to the parts use place 10 in accordance with the instruction. Step 8: It is determined whether or not all the components in the pass box have been used up. This determination is made by reading by the identification code initialization device 26 that the person has removed the identification tag 30 from the pass box in step 9 later.

Step 9: The identification tag 30 is removed from the box only when all the components in the box are exhausted. Step 10: The removed identification tag is the identification code initialization device 2
At step 6, the identification codes are read at once, and the central processing computer 12 deletes the in-box part data. <Re-entry> Step 11: If the number of parts in the pass-through box is not 0 in the judgment of step 8, that is, if a surplus product is generated from the exited pass-through box and the surplus parts are returned,
The passing box is put into the re-entry entrance of the re-entry conveyor 11B,
Read the identification code.

Step 12: When the identification code is read, the contents of the in-box component data corresponding to the identification code of the re-entry box by the entry-side control computer 14 are displayed on the display. If the number of items and the displayed expected number of items to be returned (the number of items outside the storage location) are different, correct them here. Step 13: Retrieve the parts data in the bin corresponding to the identification code of the bin re-entered by the decision of re-entry from the inventory management file, and write the number of parts stored in the bin to the inventory number in the storage location. , Set the stock quantity outside the storage location to 0.

Step 14: The re-entry box is stored in the automatic warehouse 11 and waits for a delivery request. In the inventory management method of the above embodiment, the surplus number of re-shipped boxes is reflected in the number of stocks. Is significantly improved.

Further, there is an advantage that the work content of a person is not a work such as refilling of parts, but a judgment as to whether or not the number of parts in the box is 0 or a key input operation, so that the work can be lightened. <Another Second Embodiment> In the above-mentioned inventory management device, a data area capable of storing the arrival history (item of arrival date and time in FIG. 3) of a newly arrived bin in the inventory management file is secured for each of the bins. Therefore, an inventory management method that complies with the following first-in first-out method can be performed. That is, in retrieval, the oldest arrival date pass-by box is selected by searching the arrival date and time by the identification code. In addition, when the number to be used this time is equal to or greater than the number of parts stored in one pass box, a plurality of pass boxes are selected. Also at this time, the parts are used up in the order of arrival date and time, and in the box where the parts are used up, 0 is set to the stock number 31 in the storage location and the stock quantity 32 outside the storage location corresponding to the identification code. You.

According to the stock management method in this embodiment, the passing number is given an identification number, and the receiving history indicating the receiving date and time of each passing box is stored by the part data in the passing box. The arrival date and time of the return box can be calculated. Therefore, at the time of unloading, by unloading in the order of arrival date and time, first-in first-out can be complied with, and old articles can be prevented from remaining in stock forever.

When a defective product is found, the pass-through box is identified and calculated by identifying the arrival date and time of the part, and the pass-through box is forcibly determined as having another defective product. Measures such as leaving the warehouse can be taken. Furthermore, when the above defective product is found, the pass boxes before and after the arrival date are also identified, the process in which the pass box is currently located is specified, and appropriate measures are taken for these pass boxes. Can also be taken.

[0044]

As described above, according to the inventory management method of the present invention, the article management file having the number of in-storage inventory and the number of out-of-storage inventory is stored in the article box in the box associated with the identification code. Are written in these two items of stock quantity so that the surplus number is stored as stock at the time of new entry and exit. Irrespective of the case of warehousing, it is possible to manage the number of articles stored at the time of new warehousing in a connected manner until the number reaches zero, so that the inventory accuracy of the entire factory is improved and inventory can always be reduced.

In particular, the total number of stocks can be calculated only by summing the number of stocks in the storage location and the number of stocks outside the storage location for each box. As a result, the current number of warehouses in the entire factory can be ascertained during operation involving re-entry to the storage location. In addition, when a quality problem occurs, the identification number of the corresponding pass-through box can be determined from the arrival history, ensuring first-in-first-out compliance and, when a defective product is found, easily identifying the suspect pass-through box. it can. As a result, the supplier, the serial number, and the arrival date and time can be specified, and further, it becomes easy to investigate whether there is any other problematic article.

[Brief description of the drawings]

FIG. 1 is an apparatus configuration diagram of an embodiment for explaining an inventory management device and a method thereof according to the present invention.

FIG. 2 is an explanatory diagram showing an example of an identification tag used in the present invention.

FIG. 3 is a data configuration diagram showing an example of article data in a pass box written in an inventory management file.

FIG. 4 is a flowchart of one embodiment for explaining a stock management method of the present invention.

FIG. 5 is a schematic diagram showing a conventional inventory management device.

[Explanation of symbols]

10 is a parts use place (outside the storage place), 11 is an automatic warehouse (storage place), 12 is a central processing computer, 14 is a storage control computer, 15 is a re-entry control computer, 16 is a storage control computer, 22 to 22 24 is a reader, 31 is the stock quantity in the storage location, and 32 is the stock quantity outside the storage location.

Claims (9)

[Claims] An inventory management method for articles stored in a storage box and stored in a predetermined storage place and taken out of the storage place while being stored in the storage box, wherein each storage box is individually attached. Identification code, the number of articles in the storage location including the number of articles stored in the storage box at the time when the storage box specified by the identification code is present in the storage location, and the communication number specified by the identification code. Preparing storage means capable of individually storing the in-box article data including the number of articles stored in the pass box at the time when the box is not present in the storage location and the stock quantity outside the storage location for each pass box, When the new bin is received at the storage location, the number of articles stored in the bin is set to the inventory number in the storage location corresponding to the identification code of the bin to be received, and Tray box identifier The stock number outside the storage location corresponding to the item is set to 0, and when the box is taken out of the storage location, the article is used this time from the stock number in the storage location corresponding to the identification code of the box to be delivered. After subtracting the number, the number of stocks in the storage location corresponding to the identification code of the outgoing box is set to 0, and the number of stocks in the storage location corresponding to the identification code of the outgoing box is set to 0. An inventory management method comprising: calculating a total number of articles in a storage location and a total number of articles outside a storage location based on the stock quantity in each storage location and the stock quantity in each storage location corresponding to all identification codes. . 2. The inventory management method according to claim 1, wherein when the unloaded bin is returned to the storage location, the number of stocks in the storage location corresponding to the identification code of the bin to be stored is returned to the storage location. An inventory management method, wherein the number of articles stored in a box is set, and the number of stocks outside the storage location corresponding to the identification code of the incoming bin is set to zero. 3. The inventory management method according to claim 1, wherein the article data in the pass box corresponding to the identification code of the pass box in which the number of stored articles is 0 is deleted. Management method. 4. The inventory management method according to claim 1, wherein said storage means stores a storage history of a newly arrived pass-by box for each pass-through box, and stores the articles in each pass-through box. The stock information is individually calculated using the identification code. 5. An inventory management method for articles which are stored in a storage box in a predetermined storage place, and are discharged from the storage place in the storage box, wherein each storage box is individually attached to each storage box. Storage means capable of storing the received identification code and the arrival history of the newly arrived bins for each of the bins, and providing the arrival information of the articles in each bin that has been unloaded with the identification code and the storage. An inventory management method characterized by individually calculating by means. 6. The inventory management method according to claim 5, wherein when unpacking the pass-through box, the boxes are delivered in the order of the arrival date and time that is found from the receipt history. 7. An inventory management method for articles which are stored in a storage box in a predetermined storage place, and are taken out of the storage place in the storage box. Identification code, the number of articles in the storage location including the number of articles stored in the storage box at the time when the storage box specified by the identification code is present in the storage location, and the communication number specified by the identification code. Storage means capable of individually storing, in each of the pass boxes, article data in the pass box, which is composed of the number of articles stored in the pass box and the stock outside the storage location at the time when the box does not exist in the pass location; When the pass-box is received at the storage location, the number of articles stored in the pass-box is set to the number of stocks in the storage location corresponding to the identification code of the pass-through box to be received, and the stock is received. For the pass box identification code Means for setting the number of stocks outside the storage location to zero, and when unpacking the box from the storage location, determining the number of articles in the storage location from the total number of stocks in the storage location corresponding to the identification code of the box to be unloaded. The used number is subtracted and written in the stock number outside the storage location corresponding to the identification code of the box to be delivered, and the inventory number in the storage location corresponding to the identification code of the box to be delivered is set to 0. Means for calculating the total number of articles in the storage location and the total number of articles outside the storage location based on the number of stocks in each storage location and the number of stocks outside the storage location corresponding to all identification codes. An inventory management device, characterized in that: 8. The inventory management device according to claim 6, wherein when the unloaded bin is returned to the storage location, the number of stocks in the storage location corresponding to the identification code of the bin to be stored is returned to the storage box. An inventory management device comprising: means for setting the number of articles stored in a box and setting the number of stocks outside the storage location corresponding to the identification code of the box to be stored to zero. 9. An inventory management device for articles stored in a storage box in a predetermined storage place and taken out of the storage place in the storage box. Storage means capable of storing the received identification code and the receiving history of the newly-received bins for each of the bins; and receiving information of the articles in each of the bins that have been unloaded by the identification code and the storage unit. An inventory management device comprising: means for individually calculating;