JP2000085925A - How to make a supply plan - Google Patents

Abstract

(57) [Summary] [PROBLEMS] To provide a replenishment plan creating method capable of responding to fluctuations in product characteristics and demand when resupplying goods from an upstream base to a downstream base. SOLUTION: A supply area is set as a group of a plurality of downstream bases which receive supply preferentially from a specific upstream base, and an allocation area is set as a group of at least one downstream base included in the supply area. The demand amount of the downstream base is aggregated as the supply request amount of each distribution area, and the supply request amount of the supply area is aggregated, and the calculated supply request amount of the supply area is transmitted to the upstream base. The supply amount returned from the upstream base is distributed to each distribution area according to the ratio of the supply request amount of the distribution area. Further, the supply amount distributed to each distribution area is distributed to each downstream base according to the latest demand ratio of the downstream base belonging to the distribution area.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method of preparing a supply plan when replenishing goods from an upstream base to a downstream base among a plurality of bases having stocks, and particularly to a method for changing the life cycle and demand of goods. A method of preparing a replenishment plan that can be handled.

[0002]

2. Description of the Related Art When replenishing goods from an upstream base to a plurality of downstream bases between bases having stock, usually, the demand amount of each downstream base is totaled, the order quantity to the upstream base is determined, and an order is placed. A method is adopted in which the supply amount returned from the upstream base is allocated according to the demand amount of each downstream base and the allocation amount of each downstream base is determined. In addition, D
There is an RP (Distribution Requirements Planning) system, and this system is described in, for example, "Business DRP" (by Andre J. Martin, Nikkan Kogyo Shimbun).

[0003]

According to the above prior art, the distribution amount of each downstream site depends on the supplied supply amount and the demand amount of each downstream site at the time of ordering.
Therefore, if the demand fluctuates between the time the order is placed and the time when the supply is actually replenished, the downstream base cannot obtain an appropriate distribution amount, and there may be a shortage or excess stock. Also, when the stock of the upstream base that receives the priority order and the supply is large is not enough, and the supply is also supplied from other upstream bases, the supply from other upstream bases is reduced due to the decrease in demand due to fluctuations in demand. In some cases, this may not be able to be stopped even if it becomes unnecessary. As described above, the conventional ordering method and allocation method are fixed, and there is a problem that the order amount and the allocation amount cannot be changed according to the fluctuation of demand.

[0004] The group of a plurality of downstream sites that are collectively supplied from the upstream site is set according to the convenience of the producer and the transport efficiency, and is not appropriate for the downstream site to be allocated. Not exclusively. In addition, such a group of downstream bases is usually fixed, and is not reconfigured according to the characteristics of individual products or market characteristics. As a result, shortages and excess stock are likely to occur on the downstream base side.

[0005] It is an object of the present invention to provide a replenishment plan creating method which is suitable for a downstream base receiving distribution.

It is another object of the present invention to provide a replenishment plan creating method capable of responding to fluctuations in demand.

It is still another object of the present invention to provide a replenishment plan creating method capable of changing a distribution strategy in response to changes in the life cycle and demand of a product.

[0008]

FIG. 1 is a diagram for explaining the basic concept of a replenishment plan creating method according to the present invention. A supply area is set as a group of a plurality of downstream bases that receive supply preferentially from a specific upstream base. Further, the distribution area is set as a group of downstream bases included in the supply area and including at least one downstream base. The demand amount of the downstream base is aggregated as the supply request amount of each distribution area, and the supply request amount of the supply area is aggregated, and the calculated supply request amount of the supply area is transmitted to the upstream base. The supply amount returned from the upstream base is distributed to each distribution area according to the ratio of the supply request amount of the distribution area.

Further, the present invention is characterized by a method of preparing a replenishment plan in which the supply amount distributed to each distribution area is distributed to each downstream base according to the ratio of the latest demand of the downstream base belonging to the distribution area.

Further, according to the present invention, the correspondence between each downstream base and the supply area belonging thereto and the correspondence between the distribution area and the distribution area are set as a database, the contents of this database are displayed on a display device, and the supply area for the same product is set to A replenishment plan creating method for changing the correspondence in a database according to an instruction via an input device to divide or integrate at least one of the distribution areas is characterized.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below with reference to the drawings.

First, terms used in the present embodiment will be described. The base is a place having stock, such as a factory that is a supplier of goods, a warehouse that is a storage place of goods, a store that is a delivery destination, and the like. The downstream base is a base that receives supply in a multi-stage distribution network. The upstream base refers to a base that supplies the downstream base. The supply area is a set of downstream bases that is a unit when issuing a supply request to an upstream base and is also a unit when receiving supply. The designated upstream base refers to an upstream base where a certain supply area receives supply preferentially. Priority supply is
For example, in a case where the transportation cost from a designated upstream site to each downstream site belonging to the supply area is minimized among all the upstream sites, this means replenishment giving priority to the transportation cost. The distribution area is a subset of the downstream bases included in the supply area, and is a group of downstream bases serving as a distribution unit when allocating the supply amount received from the upstream base. The distribution frame is a quantity that each distribution area can receive the distribution, and is a quantity obtained by proportionally distributing the supplied supply quantity according to the request quantity at the time of request submission for each distribution area included in the supply area. Each downstream base receives the distribution amount of the distribution area to which it belongs in proportion to the latest demand for each downstream base included in the distribution area. Note that the present embodiment is based on the premise that there are a plurality of upstream bases that handle the same product, and that the supply area may receive supply from an upstream base other than the designated upstream base.

FIG. 2 is a diagram showing an example of a distribution network. In this example, bases 1 to 9 are downstream bases, and base 1
0 and 11 are upstream bases. Supply area 1 is for bases 1 to 5
And the supply area 2 includes the bases 6 to 9. The designated upstream base of the supply area 1 is the base 10. The distribution area 1 includes the bases 1 to 3, and the distribution area 2 includes the bases 4 and 5. The supply area 1 may receive supply from the base 11.

FIG. 3 is a configuration diagram of a computer for executing the supply plan creation of the present embodiment. The computer includes a CPU 21, a memory (main storage device) 22, a storage device 23, and a display device 2.
4. Input device 25 and bus 26 connecting these devices
Consists of In the memory 22, a base stock management module 31, an order calculation module 32, a supply area management module 33, a requested supply amount calculation module 34, and a distribution calculation module 35, which constitute a replenishment plan creation program, are stored.
Is stored and executed by the CPU 21. The memory 22 is provided with a work area 38 and a control program 39 for managing and controlling the memory 22, the storage device 23, the display device 24, and the input device 25.

In the storage device 23, a base characteristic DB (database) 41, a product information DB 42, a base stock planning DB 4
3. Inventory adjustment cycle DB44, supply area inventory plan D
B45, a supply area supply request DB 46, a distribution area supply request DB 47, and a site-specific distribution amount DB 48 are stored and accessed by the supply plan creation program via the control program 39. The base characteristic DB 41 is a DB that stores correspondence between bases, distribution areas, and supply areas for each product. The product information DB 42 is a DB that stores correspondence between each product and a base that handles the product. Base inventory plan D
B43 is a DB that stores inventory planning data for each product and each day for each base. Inventory adjustment cycle DB44
Stores the cycle of the inventory adjustment date of each supply area.
The supply area inventory plan DB 45 stores the demand amount of each supply area for each product and the number of supply responses. The supply area supply request DB 46 stores a daily supply request amount for each product for each supply area. The distribution area supply request DB 47 stores a supply request amount of each distribution area for each product. The site-specific allocation amount DB 48 stores the allocation amount for each site and each date for each product.

FIG. 4 is a PAD diagram showing a schematic procedure of the processing of the supply plan creation program. The base inventory management module 31 refers to the base characteristic DB 41, the product information DB 42, and the base inventory plan DB 43, and refers to the order calculation module 32
Is started to calculate the order, and the demand amount of each base is developed on the work area 38 (step 51). Next, the supply area management module 33 calculates a demand amount for each supply area from a demand amount for each base, and calculates a supply area inventory plan DB.
45 (step 52). Next, the requested supply amount calculation module 34 calculates a requested supply amount for each supply area (step 53). First, the inventory adjustment cycle DB44
It is determined whether or not the stock adjustment is necessary for each supply area by referring to the table. If the stock adjustment is necessary, it is necessary to adjust the supply area between the supply areas by the excess supply or the excess stock with reference to the supply area inventory plan DB 45. In such a case, allocation between supply areas is changed. Next, for each supply area, for each distribution area belonging to the supply area, a supply request amount of the distribution area is calculated and stored in the distribution area supply request DB 47, and a supply request amount of the supply area is calculated to supply the supply area supply request. It is stored in the DB 46. Next, the requested supply amount in the supply area supply request DB 46 is transmitted to the upstream base, the supply response is input to the computer, and stored in the supply area inventory plan DB 45 (step 54). Next, the distribution calculation module 35 performs a distribution calculation for each location based on the obtained supply response, and stores the distribution result in the distribution amount DB 48 for each location (step 55).
That is, with reference to the supply area inventory plan DB 45 and the distribution area supply request DB 47, the quantity of the supply response is distributed at the ratio of the supply request quantity of the distribution area belonging to the same supply area to calculate the distribution frame. With reference to the distribution frame, the distribution amount is calculated based on the ratio of the latest demand amount of each site, and the distribution amount for each site is calculated. The calculation of the requested supply amount from step 51 to step 53 is performed for each planning cycle. Inventory adjustment is performed in each inventory adjustment cycle. The distribution calculation in step 55 may be performed any number of times, such as weekly or daily, until the actual replenishment is performed.

FIG. 5 is a diagram showing the data structure of the site characteristic DB 41. The base characteristic DB 41 has a table for each product number or group of product numbers, and each table includes a base column 501, a supply area column 502, and a distribution area column 50.
3. Set the number of the designated upstream base and the planning cycle. A number for identifying a supply area is set in a supply area column 502 and a number for identifying a distribution area is set in a distribution area column 503 corresponding to the base number stored in the base column 501. In this example, the bases with base numbers 1 to 5 are downstream bases having the base with base number 10 as a designated upstream base, and are bases that constitute the same supply area 1. The bases with base numbers 6 to 9 are downstream bases having the base with base number 11 as a designated upstream base, and constitute the same supply area 2. The planning cycle is
Set the number of interval days for which the supply plan is created.

FIG. 6 is a diagram showing the data structure of the product information DB 42. A list of service bases is set according to the product number of each product. The substantial supply area and distribution area of each product is the range of the supply area and distribution area set via the handling base and the base number set in the base characteristic DB 41.

FIG. 7 is a diagram showing a data configuration of the base stock plan DB 43. The base inventory plan DB 43 sets a necessary amount, a distribution amount, a distribution source, and a stock amount for each date corresponding to each base number and a product number. The required amount is the amount required for customers or downstream sites on that day, the allocated amount is the allocated amount supplied from the upstream site, the distribution source is the base number of the upstream site receiving the supply, and the inventory amount is the last Stock quantity. The required quantity is updated daily, and the balance of the stock is calculated accordingly. The amount of distribution depends on the amount of supply supplied and also on the required amount. Since the required amount can change due to fluctuations in demand, the allocation amount is updated accordingly. In this example, the supply plan is determined from 1 day to 4 days, and the supply is already answered and the allocation amount is set. The period from the 5th to the 8th is a supply planning period and a period for determining the allocation amount from this.

FIG. 8 is a PAD diagram showing the flow of processing for calculating the demand at each location. The following processing is repeated for each same planning cycle, each product, and each downstream base (step 61). First, the base characteristic DB 41 and the product information DB 4
2, select a base that handles the product, and specify the base characteristic DB.
A supply planning period is determined by a planning cycle of 41, and a table for setting a demand amount of the base corresponding to each date of this period is developed on the work area 38 (step 62). Next, the daily demand amount is calculated for this period with reference to the table of the base and the product in the base stock plan DB 43, and stored in this table corresponding to the order date (step 63). As an order calculation for obtaining a demand amount, for example, there is a fixed-point ordering method of ordering a predetermined quantity when the stock amount falls below a certain level.

FIG. 9 is a table showing the result of order quantity calculation stored in the work area 38. In this example, the demand amount is obtained in accordance with the fixed-point ordering method of ordering only 100 when the stock amount of the product of the product number 1 for the base number 1 becomes 20 or less. The same base in the base inventory plan DB 43,
Referring to the table for the same product, the stock amount becomes 10 on the 5th and the 7th, so 100 is set as the demand amount for each.

FIG. 10 is a diagram showing the data structure of the supply area inventory plan DB 45. Supply area inventory planning DB4
Reference numeral 5 stores an area demand, a supply response, a designated upstream base allocation number, and a non-designated upstream base allocation number for each date corresponding to each supply area and product number. The area demand is the total demand in the supply area, and the supply answer is the supply answered from the upstream base. The number of allocations is a breakdown of supply responses,
The quantity supplied from the designated upstream base and the non-designated upstream base is stored. The area demand is recalculated in accordance with the update of the required amount of each base belonging to the supply area, because the demand of the base is changed.

FIG. 11 is a PAD diagram showing the flow of the process of calculating the demand of each supply area. The following processing is repeated for the same planning cycle and for each designated upstream base (step 64). First, referring to the base characteristic DB 41, the supply area corresponding to the planning cycle and corresponding to the designated upstream base is referred to, and the base number of the downstream base belonging to the supply area is extracted (step 65). Next, the processes of steps 67 and 68 are repeated for each product (step 66). That is, referring to the product information DB 42, the demand amount stored in the work area 38 for the downstream base that handles the product is summed up for the supply area to which it belongs, and the supply area demand amount is calculated (step 67). Next, the calculated demand amount of the supply area is stored in the corresponding table of the supply area inventory plan DB 45 (step 68).

FIG. 12 is a diagram showing the data structure of the inventory adjustment cycle DB 44. Inventory adjustment cycle DB44
Sets an inventory adjustment cycle corresponding to the number of each supply area. The inventory adjustment cycle sets the number of days between inventory adjustments.

FIG. 13 is a diagram showing the data structure of the supply area supply request DB 46. Supply area supply request DB4
Numeral 6 stores the requested supply amount of the supply area for each date corresponding to the number of the upstream base and the product number. Once the requested supply amount is set, it is not updated except for a change due to inventory adjustment thereafter.

FIG. 14 is a diagram showing the data structure of the distribution area supply request DB 47. Distribution area supply request DB4
Reference numeral 7 has a table for each product number, and stores a supply request amount for each distribution area for each date of the supply plan decision period and the supply plan planning period. Once the requested supply amount is set, it is not updated except for a change due to inventory adjustment thereafter.

FIG. 15 is a PAD diagram showing the flow of the required supply amount calculation process for each supply area. Here, the requested amount is
This is the final demand that is submitted as a request after making inventory adjustments to the original demand as needed. The following process is repeated for each product number (step 71).
Further, the following processing is repeated for each supply area (step 72). With reference to the inventory adjustment cycle DB 44, it is determined whether or not the processing date falls on the inventory adjustment date for the supply area (step 73). If the processing date is not the stock adjustment date, step 73 is executed for the next supply area. If the processing date is the inventory adjustment date, the supply area inventory plan DB 45 is referenced to extract plan data for the supply plan fixed period from the table of the supply area and the product number (step 74). Next, if there is excess supply for each date of the extracted supply plan determination period, adjustment between supply areas is performed (step 75). That is, if the total of the supply responses in the supply plan decision period exceeds the total of the area demand, the amount of the difference is limited to the amount that is to be supplied from the upstream base that is not the designated upstream base, Up to the smaller of the former and latter quantities,
If the supply response is allocated on a date earlier than the date of the area demand, the allocation is replaced as a supply response for a supply area in which an upstream base that is not the designated upstream base is the designated upstream base. For example, according to the example of the supply area inventory plan DB 45 in FIG. 10, the supply response with the date of 3 days is 200 more than the area demand, and the difference 200 is the supply response for the base 11 which is not the designated upstream base. With respect to the supply area inventory plan on the work area 38, the supply response on the 3rd day of the supply area 1 is corrected to 100, and the number of non-designated upstream base allocations is corrected to 100. Also, 200 is added to the supply response on the 3rd day of the supply area inventory plan of the supply area 2 on the supply area inventory DB 45. Next, the area demand of the related supply area is changed in accordance with the reallocation (step 76). In other words, in the supply area where supply responses have increased due to relocation, the supply area demand in the supply area during the supply planning period is reduced by the reallocated quantity from the earliest date, and the supply response In the supply area where the supply has been reduced, the supply amount will be increased by the quantity that has been reserved on the first day of the supply planning period. In the above example, 200 is added to the supply area demand of the supply area 1 on the work area 38 on the 5th, and the supply area demand is reduced by a total of 200 in order from the day of the supply response starting from the supply area 2 on the 5th. Subtract until

Next, for each base belonging to the supply area and handling the product, the stock balance calculation is performed for the supply plan planning period with reference to the base inventory plan DB 43, and when there is no area demand in the supply plan planning period. If the inventory amount exceeds the predetermined stock amount on the last day of the supply planning period, the supply is exchanged as a supply answer to another supply area up to the exceeded amount (step 7).
7). That is, the stock amount of the day = the stock amount of the previous day−the required amount of the day + the required supply amount of the previous day (however, the supply request amount is 0 if no order is placed) is calculated from the first day of the supply planning period to the last day. If there is no area demand in the supply planning period and the total of the supply area in the last day's inventory is 0 or exceeds the safety stock, the supply plan will be exceeded from the supply answer in the supply plan confirmation period. Subtract the quantity of the product and reserve it as a supply answer to other supply areas that handle the same commodities up to the exceeded quantity. Here, the other supply areas are selected in order from the supply area where the requested supply amount is large and the transportation cost is small. Next, the demand amount of the related supply area is changed in accordance with the reallocation (step 78). The method of increasing or decreasing the demand in the related supply area is the same as that in step 76. Next, the stock plan of the supply area updated in the work area 38 in the supply plan fixed period is stored in the supply area stock plan DB 45 (step 79). When the inventory adjustment processing has been completed for all the supply areas in this manner, the process proceeds to step 80.

Next, the following processing is repeated for each supply area (step 80). Next, a base number belonging to each distribution area is extracted for the distribution area belonging to the supply area with reference to the base characteristic DB 41 (step 81). Next, referring to the work area 38 for each distribution area, the supply request amounts of the bases belonging to the distribution area are summed to obtain the supply request amount of the distribution area (step 82). Next, the supply request amount of the supply area is obtained by summing the supply request amounts of the distribution areas belonging to the supply area (step 83). However, since the sum of the requested supply amounts of all the distribution areas belonging to the supply area must match the already calculated supply area demand amount, if this is not the same due to the above inventory adjustment, it is assumed that they match. In the work area, the demand at each base must be increased or decreased, and the demand at each distribution area must be increased or decreased accordingly. Finally, the supply request amount in the supply plan fixed period and the supply plan planning target period of the supply area updated on the work area is stored (step 84). That is, the supply request amount of the distribution area is stored in the distribution area supply request DB 47, and the supply request amount of the supply area is stored in the supply area supply request DB 46. However, in the supply plan fixing period, only the requested supply amount changed by the inventory adjustment is updated, and the other requested supply amounts are not changed.

Next, the requested amount of supply in each supply area for each date of the supply planning period stored in the supply area supply request DB 46 is transmitted to the upstream base. Upstream bases 10, 11
In, the stock amount is managed as a whole, and supply replies for the designated upstream base and other upstream bases are created. The supply response from the upstream base is input to the computer of this embodiment, and the supply response for each date of the supply plan planning period in the corresponding supply area and product table of the supply area inventory plan DB 45, the designated upstream base allocation number and the The data of the column of the designated upstream base allocation number is stored. If a change in the supply response is input even during the supply plan decision period, the supply response and the number of allocations on that date are updated accordingly.

FIG. 16 is a PAD diagram showing a flow of processing for calculating distribution for each distribution area and each base based on the obtained supply response. The following process is repeated for each product handled (step 91). Next, the following processing is repeated for each supply area to which the base handling the product belongs with reference to the base characteristic DB 41 and the product information DB 42 (step 92). First, referring to the distribution area supply request DB 47, all the supply request amounts of the distribution area belonging to the supply area for the product are extracted (step 93). Next, a distribution frame for a supply plan decision period and a supply plan drafting period for each distribution area is set (step 94). By referring to the supply area inventory plan DB 45 and fetching the supply response regarding the supply area and the product concerned, and distributing the supply response quantity proportionally according to the total supply request amount in each period of the distribution area, a distribution frame of each distribution area is obtained. . However, each allocation frame shall not exceed the supply request amount of each allocation area during the period. For example, if the supply response is 500 and the supply request amount of the distribution area 1 is 300 and the supply request amount of the distribution area 2 is 200, the distribution frame of the distribution area 1 is 300 and the distribution frame of the distribution area 2 is 200. Supply answer is 5 instead of 500
Even if it is 50, these allocation frames do not change. FIG. 17 shows an example of each distribution area stored in the work area and a distribution frame of each period. Next, the daily demand amount of each base is recalculated for each distribution area, and then the distribution amount is set (step 95). That is, the latest necessary amount and stock amount of each site belonging to each distribution area are acquired by referring to the table for the product in the site inventory plan DB 43, and the same order calculation as in step 63 is recalculated. As a result, when the demand for each order date is calculated, the demand for each period is calculated. When the distribution frame of each distribution area and each period is proportionally distributed according to the demand amount of each base belonging to the distribution area, the distribution amount of each base and each order date is calculated. The distribution amount thus obtained is stored in the distribution amount DB 48 for each base, and stored in the column of the distribution amount on the corresponding date in the base stock planning DB 43.

FIG. 18 is a diagram showing the data structure of the distribution amount DB 48 for each location. The site-specific allocation amount DB 48 has a table for each product number, and stores the allocation amount for each site for each date of the supply plan decision period and the supply plan planning target period.

FIG. 19 shows that in the process of step 75,
This is an example of a screen displayed on the display device 24 for asking the user whether or not to transfer a surplus portion of the quantity supplied from an upstream base other than the designated upstream base. In this manner, whether or not to make a transfer may be determined by the user's determination. In this example, the number of the supply area having the non-designated upstream base as the upstream base and the surplus supply quantity are displayed. “Transfer” is a button for instructing transfer, and “Cancel” is a button for instructing not to transfer.

FIG. 20 shows that in the process of step 77,
This is an example of a screen asking the user whether or not to transfer a surplus of the quantity supplied from the designated upstream base displayed on the display device 24 to another supply area. In this manner, whether or not to make a transfer may be determined by the user's determination. In this example, the number and the surplus of the supply area that receives the supply from the designated upstream base, and the numbers of the other supply areas selected as the transfer candidates and the surplus breakdown quantity are displayed. “Transfer” is a button for instructing transfer, and “Cancel” is a button for instructing not to transfer. For example, when it is better to store the surplus amount in the supply area 1 rather than sending the surplus amount to another supply area by multiplying the transportation cost, "cancel" may be instructed.

The contents of the base characteristic DB 41 are displayed on the display device 24, and at least one of the supply area and the distribution area is divided or integrated, or the downstream base is moved from the distribution area to which it belongs to another distribution area. The correspondence between the downstream base, the supply area, and the distribution area can be changed via the input device 25 and re-registered in the base characteristic DB 41. Instead of changing the supply area column 502 or the distribution area column 503 corresponding to the base column 501, the target product number is deleted from the original table in the base characteristic DB 41 and added to another table. Results in changing the correspondence between the downstream base, the supply area, and the distribution area for the product.

According to the present embodiment, distribution to each downstream base is performed according to a distribution frame provided for each distribution area to which the base belongs. Then, the allocation frame is calculated based on the ratio of the requested supply amount of each distribution area in the same supply area at the time when the requested supply amount is created, and once this ratio is set, except when inventory adjustment is performed. does not change. The absolute quantity of the allocation quota is determined by the supplied supply,
When the supply response is updated, the quantity of the allocation frame changes accordingly. The distribution amount of each base belonging to the distribution area is calculated based on the latest demand ratio at the time of performing the distribution calculation. Therefore, when the demand amount of each base at the time of calculating the supply request amount fluctuates thereafter, the distribution area assumes the overall responsibility and is managed within the distribution area.
If the supply area is set with an emphasis on the production plan of the upstream base and the transport efficiency between the upstream base and the downstream base, the distribution area is set based on a cooperative relationship between the downstream bases. No distribution area, 1 supply area
If one distribution unit is used, the distribution becomes fixed, and an appropriate distribution is not necessarily performed for each downstream base. Also, if the supply area is subdivided instead of setting multiple distribution areas in the supply area, the upstream base must create production plans and transport plans for more subdivided objects, which is not practical for operation. There is. Supply areas are often set taking into account the circumstances of upstream bases and are relatively fixed, whereas allocation areas need only be set taking into account the circumstances of downstream bases. It is referred to when submitting a supply request and when calculating allocation, and it is easy to reset the allocation area.

It is desirable to change the distribution strategy according to the type of product, the life cycle of the product, and the characteristics of the market. For example, for relatively inexpensive products, a strategy that emphasizes transport efficiency over inventory efficiency is desirable, and for relatively expensive products, a strategy that emphasizes inventory efficiency is desirable. Regarding the life cycle of a product, it is preferable that a product in a stable period be of a type that emphasizes transport efficiency, and a product that is in a convergence period / modification period be a type that emphasizes inventory efficiency. According to the present embodiment, it is possible to cope with such a change in the distribution strategy by changing the setting of the supply area and the distribution area for each product stored in the base characteristic DB 41. For example, in the case of transport efficiency-oriented type,
It is desirable to divide the downstream base into a plurality of supply areas so that transportation efficiency is optimal. In the case of the inventory efficiency-oriented type, the inventory efficiency can be improved by setting the supply area and the distribution area large so as to include as many downstream bases as possible. Further, according to the present embodiment, inventory adjustment can be performed between a plurality of supply areas, so that it is possible to adopt a balance-oriented logistics strategy combining the advantages of both the transport efficiency-oriented type and the inventory efficiency-oriented type. it can.

[0038]

As described above, according to the present invention, a distribution area for distribution is provided in a supply area provided mainly in accordance with the convenience of the producer and transportation efficiency, and the supply request amount of the distribution area is reduced. Since distribution is performed according to the ratio, appropriate distribution can be performed according to the circumstances of the downstream base.
In addition, since the supply amount distributed to each distribution area is distributed to each downstream base according to the ratio of the latest demand amount of the downstream base belonging to the distribution area, it is possible to perform replenishment that can well cope with fluctuations in demand. . In addition, since the correspondence with the supply area belonging to each downstream base set on the database and the correspondence with the distribution area can be changed, the logistics strategy can be changed according to the type of the product, the life cycle of the product, and the market characteristics. . In addition, since inventory adjustments are made between supply areas, it is possible to adopt a logistics strategy that combines the advantages of transport efficiency and inventory efficiency.

[Brief description of the drawings]

FIG. 1 is a diagram showing a basic concept of the present invention.

FIG. 2 is a diagram illustrating an example of a distribution network.

FIG. 3 is a configuration diagram of a computer according to the embodiment.

FIG. 4 is a PAD diagram illustrating a schematic procedure of a process according to the embodiment.

FIG. 5 is a diagram illustrating a data configuration of a site characteristic DB 41 according to the embodiment.

FIG. 6 is a diagram illustrating a data configuration of a product information DB according to the embodiment.

FIG. 7 is a diagram showing a data configuration of a base stock plan DB 43 according to the embodiment.

FIG. 8 is a PAD diagram illustrating a flow of a demand amount calculation process at each base according to the embodiment.

FIG. 9 is a table showing a result of order quantity calculation of the embodiment.

FIG. 10 is a diagram illustrating a data configuration of a supply area inventory plan DB 45 according to the embodiment.

FIG. 11 is a PAD diagram illustrating a flow of a demand amount calculation process of each supply area according to the embodiment.

FIG. 12 is a diagram showing a data configuration of an inventory adjustment cycle DB 44 according to the embodiment.

FIG. 13 is a diagram illustrating a data configuration of a supply area supply request DB 46 according to the embodiment.

FIG. 14 is a diagram illustrating a data configuration of a distribution area supply request DB 47 according to the embodiment.

FIG. 15 is a PAD diagram illustrating a flow of a requested supply amount calculation process for each supply area according to the embodiment.

FIG. 16 is a PAD showing a flow of a distribution calculation process according to the embodiment;
FIG.

FIG. 17 is a diagram illustrating an example of a distribution frame according to the embodiment.

FIG. 18 is a diagram illustrating a data configuration of a site-based distribution amount DB of the embodiment.

FIG. 19 is a diagram illustrating an example of a display screen for inquiring of a user about transfer of surplus supply from a non-designated upstream base.

FIG. 20 is a diagram illustrating an example of a display screen for inquiring of a user about transfer of surplus supply from a designated upstream base.

[Explanation of symbols]

31: base inventory management module, 32: order calculation module, 33: supply area management module, 34: requested supply quantity calculation module, 35: allocation calculation module, 4
1: base characteristic DB, 42: product information DB, 43: base inventory plan DB, 44: inventory adjustment cycle DB, 45: supply area inventory plan DB, 46: supply area supply request DB,
47: Distribution area supply request DB, 48: Distribution amount D per base
B, 501: base column, 502: supply area column, 503:
Allocation area column

 ──────────────────────────────────────────────────続 き Continued on the front page F term (reference) 3F022 MM11 MM21 MM29 MM30 MM35 MM49 5B049 BB11 CC27 CC31 CC40 EE01 EE05 FF03 FF04 FF07 5H215 AA09 BB18 BB20 CC07 CX01 GG09

Claims (10)

[Claims] In a replenishment plan creating method for setting a replenishment amount when resupplying goods from an upstream base to a downstream base among a plurality of bases having stock, a supply is preferentially received from a single upstream base. A group of a plurality of downstream bases is set as a supply area, and at least one distribution area included in the supply area, and each distribution area includes a distribution area including at least one downstream base belonging to the supply area. Setting, the demand amount of the downstream base is aggregated as the supply demand of the distribution area, and the demand is aggregated as the supply demand of the supply area, and the calculated supply demand of the supply area is transmitted to the upstream base. A supply planning method characterized in that a supply amount returned from an upstream base is distributed to each distribution area included in the supply area according to a ratio of a supply request amount in the distribution area. Method. 2. The method according to claim 1, wherein the supply amount distributed to each distribution area is distributed to each downstream base belonging to the distribution area according to the latest demand amount ratio of the downstream base belonging to the distribution area. How to make a replenishment plan. 3. The correspondence between each downstream base and the supply area belonging thereto and the correspondence between the distribution area and the distribution area are set as a database, and the contents of the database are displayed on a display device. 2. The replenishment plan creating method according to claim 1, wherein the correspondence on the database is changed in accordance with an instruction via an input device so as to divide or integrate at least one of the at least one. 4. When the supply area receives supply from an upstream base other than the upstream base to which supply is preferentially performed, the demand amount of the downstream base belonging to the supply area during the period in which the supply amount has already been answered. When the demand in the supply area is lower than the supplied supply, the supplied supply is reduced to the lesser of the lower supply and the supply from the other upstream base, and the 2. The replenishment plan creating method according to claim 1, wherein the replied supply amount of another supply area which receives supply preferentially from another upstream base is increased by the reduced supply amount. 5. When the upstream base supplies to a supply area other than the supply area to which the supply is preferentially performed, the stock quantity of the supply area at the end of the period to be planned is equal to the predetermined stock quantity. When exceeding, the answered supply amount is reduced during the period in which the supply amount has already been answered up to the exceeded amount, and the answered supply amount in other supply areas is increased by the reduced supply amount. The replenishment plan creating method according to claim 1, wherein 6. A program embodied on a computer-readable storage medium, wherein the program determines a replenishing amount when replenishing goods from an upstream base to a downstream base among a plurality of stocked bases. A program to be set, wherein a group of a plurality of downstream bases that are preferentially supplied from a single upstream base is set as a supply area and is at least one distribution area included in the supply area. Each distribution area includes the following processing functions when a distribution area including at least one downstream base belonging to the supply area is set in the database: (a) Demand amount of the downstream base is calculated by the distribution area (B) a function of integrating the supply request amount of the supply area and a function of integrating the supply request amount of the supply area; Is transmitted to the upstream bases, functions allocated to each distribution area included in the supply area in accordance with the supply amount of the responses from the upstream base to the ratio of the supply needs of 該配 partial area. 7. The program further includes a function of allocating the supply amount allocated to each distribution area to each downstream base belonging to the distribution area in accordance with the latest demand ratio of each downstream base belonging to the distribution area. A storage medium for storing the program according to claim 6. 8. The program further displays on a display device the contents of the database storing the correspondence between each downstream base and the supply area belonging thereto and the correspondence between the distribution area and the distribution area. 7. The storage medium storing a program according to claim 6, further comprising a function of changing the correspondence on the database according to an instruction via an input device to divide or integrate at least one of the programs. 9. The program, if the supply area is also supplied from another upstream base other than the upstream base to which the supply area is preferentially supplied, the program belongs to the supply area in a period in which the supply amount has already been answered. When the supply area demand amount that aggregates the demand amount of the downstream bases is less than the supplied supply amount, the supply amount that is answered up to the smaller of the smaller amount and the supply amount from the other upstream bases Reduce
7. The storage medium for storing a program according to claim 6, further comprising a function of increasing the replied supply amount of the other supply area which is preferentially supplied from the other upstream base by the reduced supply amount. . 10. The program according to claim 1, further comprising a step of, when supplying to a supply area other than the supply area to which the upstream base preferentially supplies, the inventory amount of the supply area at the end of the period to be planned. When exceeding the specified inventory, reduce the supplied supply in the period in which the supply has already been supplied up to the exceeded quantity, and reduce the supplied supply in other supply areas by the reduced supply. The storage medium for storing the program according to claim 6, wherein the storage medium has a function of increasing.