Transportation work determination support device and transportation work determination support method

Abstract

To provide a transportation work determination support device and a transportation work determination support method capable of supporting transaction for determining a transportation work plan for suppressing occurrence of product yard jamming.SOLUTION: A transportation work determination support method comprises the steps of: generating and displaying information related to the transition of the stock number of articles in the first stockyard as deliverer stock transition information; generating and displaying a list of transport operations needing to be minimally executed in order to prevent the stock number of articles from exceeding an upper limit as a minimum transport operation list; selecting transport operations with the stock number of articles equal to or greater than a minimum number designated in a candidate operation list from the candidate operation list which is a previously created list of candidates for transport operations to be executed, and generating and displaying it as a selected transport operation list; generating and displaying information related to the transition of the margin of a second stockyard to receive articles using information related to the transition of the stock number of articles in the second stockyard; and updating the display content by reflecting the setting content according to the setting of the time zone for executing the transport operation.SELECTED DRAWING: Figure 5

Description

[Technical Field]

[0001] The present invention relates to a transportation operation decision support device and a transportation operation decision support method that support the process of determining a transportation operation plan for moving items from a plurality of storage locations to a plurality of storage locations using transportation equipment. [Background technology]

[0002] In one logistics model, multiple products (items) with different delivery destinations are loaded onto a transport vehicle at a distribution center, which then travels to retail stores and customers to deliver the products. In this type of logistics model, the majority of the work time is spent in the transport vehicle's travel time, so reducing the transport vehicle's travel time is often the goal when developing a transportation work plan. To improve the efficiency of this type of logistics model, a method has been proposed that optimizes the delivery route of the transport vehicle and minimizes the required number of transport vehicles (see Patent Document 1). Meanwhile, another logistics model involves transporting heavy items, such as steel products, using a transport vehicle with a separable product loading section and towing section. To improve the efficiency of this type of logistics model, a method has been proposed that constantly monitors the current locations of the product, the product loading section, and the towing section, sequentially selects high-priority transport work, and provides destination instructions to the transport vehicle driver (see Patent Document 2). Furthermore, in transportation work, it is necessary to determine the combination of products to be transported in a single operation (hereinafter referred to as a transport lot). In the method described in Patent Document 1, a single transport route is determined for each delivery order, and therefore the transport lot is often also determined. In addition, in contrast to the method described in Patent Document 2, a method for determining a transportation lot with high transportation efficiency and loading efficiency has been proposed (see Patent Document 3). [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Laid-Open No. 2000-36093 [Patent Document 2] Japanese Patent Application Publication No. 6-271021 [Patent Document 3] Japanese Patent Application Laid-Open No. 2007-69997 Summary of the Invention [Problem to be solved by the invention]

[0004] In the logistics system described above, the progress of transportation operations can sometimes fall behind the initial plan. This can be caused by a variety of factors, including an increase in product production volume due to factors such as an incorrect estimate of the product production rate, the suspension of shipping by ship due to unexpected events such as typhoons or heavy rain, or delays in product transportation by transport vehicles. In this case, the increase in inventory in product storage areas can cause the inventory levels in some product storage areas to reach their upper limit of storage capacity. Furthermore, when the inventory level reaches the upper limit of storage capacity in product storage areas where product packaging and quality inspection are carried out at the exit of a factory's production line, and there is no more space available to store the products transported from the production line, a product yard congestion occurs, where there is no space to store the products. This results in the production line having to be stopped, which increases manufacturing costs and opportunity losses. For this reason, production line stoppages due to product yard congestion must be avoided as much as possible.

[0005] In order to prevent production line stoppages due to product yard clogging, it is necessary to predict future inventory levels at each product storage location and determine a transportation work plan (transportation lots and their destinations) so that products are moved to product storage locations that have as much vacancy as possible and have room to accept the products (for example, product warehouses where products are stored until they are shipped). However, when there are many product storage locations and product warehouses, when the product storage locations are widely dispersed, or when the product storage locations that can be delivered are limited due to the shape or size of the products, it is necessary to determine a transportation work plan taking into account complex conditions, making it difficult to determine a transportation work plan. However, Patent Documents 1 to 3 do not disclose or suggest a method for determining a transportation work plan that prevents product yard clogging.

[0006] The present invention has been made to solve the above-mentioned problems, and its purpose is to provide a transportation work decision support device and a transportation work decision support method that can support the process of determining a transportation work plan that prevents product yard clogging. [Means for solving the problem]

[0007] The transportation work decision support device according to the present invention is a transportation work decision support device that supports a process of determining a transportation work plan for moving goods from a first yard belonging to a first yard group to a second yard belonging to a second yard group using transportation equipment, and includes a source inventory transition display unit that generates and displays information regarding the transition of the inventory number of goods in the first yard as source inventory transition information, a minimum transportation work list generation unit that uses the source inventory transition information to generate and display a list of the transportation works that must be executed minimally to prevent the inventory number of goods in the first yard from exceeding an upper limit, and a minimum transportation work list generation unit that generates and displays a list of transportation works that must be executed minimally to prevent the inventory number of goods in the first yard from exceeding an upper limit, which is generated in advance using the source inventory transition information. The system is equipped with a selected transport work list generation unit that selects transport work from a candidate work list, which is a list of candidate work, for which the inventory number of goods in a first storage area is equal to or greater than the minimum number specified in the candidate work list, and generates and displays the list of selected transport work as a selected transport work list, and a destination capacity display unit that uses information regarding the trend in the inventory number of goods in the second storage area to generate and display information regarding the trend in the capacity to accept goods in the second storage area, and the source inventory trend display unit and the destination capacity display unit update the display content to reflect the setting content as the time periods for performing the transport work included in the minimum transport work list and the selected transport work list are set.

[0008] The source inventory trend display unit may use information regarding the number of items that exceed the upper limit at each time during the work determination period and the maximum number of items that exceed the upper limit at any time before that time to calculate and display the number of items that need to be transported from the first storage location to the second storage location at each time during the work determination period as the requested number of items to be removed.

[0009] The minimum transportation work list generating unit may generate the minimum transportation work list using information related to the desired number of items to be carried out.

[0010] The destination margin display unit may calculate and display the minimum value of the number of available spaces for storage after each time during the work determination target period as the number of available spaces for receiving transported products.

[0011] The transportation operation decision support method according to the present invention is a transportation operation decision support method for supporting a process of determining a transportation operation plan for moving an item from a first storage area belonging to a first storage area group to a second storage area belonging to a second storage area group using transportation equipment, and includes a first step of generating and displaying information on the transition of the inventory number of the item in the first storage area as source inventory transition information; a second step of generating and displaying a list of the transportation operations that must be executed at a minimum so that the inventory number of the item in the first storage area does not exceed an upper limit value, as a minimum transportation operation list, using the source inventory transition information; and a second step of generating and displaying a list of the transportation operations that must be executed at a minimum so that the inventory number of the item in the first storage area does not exceed an upper limit value, as a minimum transportation operation list, using the source inventory transition information. The method includes a third step of selecting, from a candidate work list, which is a list of candidate work tasks, transportation work tasks for which the inventory number of goods in the first storage area is equal to or greater than the minimum number specified in the candidate work list, and generating and displaying the list of selected transportation work tasks as a selected transportation work list; and a fourth step of generating and displaying information regarding the trend in the inventory number of goods in the second storage area using information regarding the trend in the inventory number of goods in the second storage area, wherein the first step and the fourth step include a step of updating the display content to reflect the setting content as the time periods for performing the transportation work tasks included in the minimum transportation work list and the selected transportation work list are set. [Effects of the Invention]

[0012] The transportation work decision support device and transportation work decision support method according to the present invention can support the process of determining a transportation work plan that reduces the occurrence of product yard clogging, thereby enabling the user to efficiently determine a transportation work plan that reduces the occurrence of product yard clogging. [Brief explanation of the drawings]

[0013] [Figure 1] FIG. 1 is a schematic diagram showing an example of the configuration of a physical distribution facility to which a transportation operation decision support device according to an embodiment of the present invention is applied. [Figure 2] FIG. 2 is a schematic diagram showing an example of the configuration of the transporter vehicle shown in FIG. [Figure 3] FIG. 3 is a schematic diagram showing an example of the configuration of the building shown in FIG. [Figure 4] FIG. 4 is a schematic diagram showing a state in which the coil is placed on a gantry. [Figure 5] FIG. 5 is a block diagram showing the configuration of a transportation operation decision support device according to one embodiment of the present invention. [Figure 6] FIG. 6 is a diagram illustrating an example of the coil size group table. [Figure 7] FIG. 7 is a diagram illustrating an example of a storage space capacity table. [Figure 8] FIG. 8 is a diagram showing an example of a scheduled work list. [Figure 9] FIG. 9 is a diagram illustrating an example of inventory information. [Figure 10] FIG. 10 is a diagram illustrating an example of transportation lot information. [Figure 11] FIG. 11 is a diagram showing an example of the transport destination correspondence table. [Figure 12] FIG. 12 is a diagram illustrating an example of the information on products to be delivered. [Figure 13] FIG. 13 is a diagram showing an example of the shipping-scheduled product information. [Figure 14] FIG. 14 is a flowchart showing the flow of the transportation operation decision support process according to one embodiment of the present invention. [Figure 15] FIG. 15 is a diagram illustrating an example of the source inventory transition information. [Figure 16] FIG. 16 is a diagram illustrating an example of source inventory transition display information. [Figure 17] FIG. 17 is a diagram showing an example of the transfer source inventory transition display screen. [Figure 18]FIG. 18 is a diagram illustrating an example of the source inventory transition information. [Figure 19] FIG. 19 is a diagram showing an example of the transfer source inventory transition display screen. [Figure 20] FIG. 20 is a diagram showing an example of a minimum transportation work list. [Figure 21] FIG. 21 is a diagram showing an example of the selected transportation work list. [Figure 22] FIG. 22 is a diagram illustrating an example of destination inventory transition information. [Figure 23] FIG. 23 is a diagram showing an example of a display screen of destination inventory transition information. [Figure 24] FIG. 24 is a diagram showing an example of the task assignment screen. [Figure 25] FIG. 25 is a diagram showing an example of a screen for changing the work assignment details. [Figure 26] FIG. 26 is a diagram showing an example of the destination inventory transition display screen. DETAILED DESCRIPTION OF THE INVENTION

[0014] Hereinafter, the configuration and operation of a transportation operation decision support device according to one embodiment of the present invention will be described with reference to the drawings.

[0015] [Configuration of logistics facilities] First, the configuration of a physical distribution facility to which a transportation operation decision support device according to one embodiment of the present invention is applied will be described with reference to FIGS.

[0016] FIG. 1 is a schematic diagram showing an example of the configuration of a logistics facility to which a transportation operation decision support device according to one embodiment of the present invention is applied. The products handled in the logistics facility 1 shown in FIG. 1 are coils C, which are steel products. A first yard belonging to the first yard group according to the present invention corresponds to product yard 2 in factories A and B, and a second yard belonging to the second yard group according to the present invention corresponds to building 8 of product warehouses A and B. The transportation operation decision support device according to one embodiment of the present invention supports the process of determining a transportation operation plan for moving coils C from product yards A and B in factories A and B to building 8 of product warehouses A and B using a transport vehicle whose product loading section (pallet) and towing section are separable.

[0017] In the logistics facility 1 shown in Figure 1, the main transport equipment is an overhead crane 3, a transport vehicle 4, and a pallet 5. Coils C manufactured in other factories are packed and placed in product yards 2 within factories A and B, where they are loaded onto pallets 5 using overhead cranes 3 within factories A and B, and then transported on pallets 5 by transport vehicle 4 into building 8 of product warehouses A and B. In building 8 of product warehouses A and B, the coils C placed on the transported pallets 5 are moved to the product storage area and stored until the shipping date. Then, on the shipping date, the coils C are transported out of product warehouses A and B by overhead cranes 3 within product warehouses A and B, and loaded onto ships or shipping vehicles for transport to the customer.

[0018] An example configuration of the transport vehicle 4 is shown in Figures 2(a) and (b). As shown in Figures 2(a) and (b), the transport vehicle 4 is designed so that the pallet 5 and towing unit 6 can be separated. The towing unit 6 loads a pallet 5 carrying coils C at factories A and B, and transports the pallet 5 to the designated building 8. When the towing unit 6 arrives at building 8, it enters a vehicle entrance / exit frontage (hereinafter abbreviated as "frontage") 7 and unloads the pallet 5 into the frontage 7. After unloading the pallet 5, the towing unit 6 loads another pallet 5 placed in the same frontage 7, or exits the frontage 7 and moves to the frontage 7 where another pallet 5 is placed in order to transport another pallet 5.

[0019] The coils C loaded on the pallets 5 placed in the entrance 7 are moved into the building 8 by the overhead crane 3 (this is called warehousing). Once all of the coils C loaded on the pallets 5 have been moved into the building 8, the towing unit 6 leaves the entrance 7 with the empty pallets 5 on board. This towing unit 6 may be different from the towing unit 6 that brought the pallets 5 to the entrance 7. Because the towing unit 6 and the pallets 5 are structured to be separable, the movement (travel) of the towing unit 6 and the loading and unloading of the pallets 5 can be carried out in parallel. In vehicles such as ordinary trucks where the towing unit 6 and the pallets 5 cannot be separated, the vehicle must be stopped during loading and unloading operations, but in comparison to such vehicles, vehicles that allow separation enable more efficient transportation.

[0020] Product warehouses A and B are made up of multiple buildings 8 (see FIG. 1), and each building 8 is equipped with an overhead crane 3. The overhead crane 3 is responsible for moving products within the building 8 and for storing and retrieving products from building 8 (loading coils C from the product warehouse onto pallets 5 of transport vehicles 4 using the overhead crane 3). In this embodiment, which building 8 the coil C is placed in is determined based on the customer area to which the coil C is to be delivered. FIG. 3 is a schematic diagram showing an example configuration of building 8. As shown in FIG. 3, the overhead crane 3 can move in the traveling direction and lateral direction, and can move the coil C by instructing a crane control computer (not shown) on the origin and destination positions of the coil C.

[0021] Each building 8 also has an off-site temporary storage area 9, which is an area other than the frontage 7 where coils C can be taken in and out. The off-site temporary storage area 9 is where the coils C to be shipped are lined up, and is designed to allow loading and unloading equipment other than vehicles to enter. For example, a forklift moves the coils C stored in the off-site temporary storage area 9 to the shipping berth. Each building 8 also has racks 10 on which the coils C are placed one by one. The racks 10 are installed in rows, and the coils C are arranged in a line on the racks 10. Figure 4 shows a side view of the coils C arranged in a row. The coils C are placed on the racks 10, and address numbers are assigned to the racks 10 in order from the end. The size (width, outer diameter) of the coils C that can be placed in each row (each rack 10) is limited by the width of the racks 10 and the spacing between the racks 10.

[0022] For this reason, coils C are classified into size groups (width group, outer diameter group) according to their width and outer diameter values, and restrictions are placed on the size groups (width group, outer diameter group) and types of coils C that can be placed based on row and address. Coils C can also be stacked. In this embodiment, for the sake of simplicity, it is assumed that there are no restrictions on the placement of coils C by size group in product yards 2 of factories A and B, and it does not matter which coils are placed where. This is because there is little difference in size between coils C placed in product yards 2 of the same factory.

[0023] [Configuration of the transportation work decision support device] Next, the configuration of a transportation operation decision support device according to one embodiment of the present invention will be described with reference to FIGS.

[0024] Fig. 5 is a block diagram showing the configuration of a transportation operation decision support device according to one embodiment of the present invention. As shown in Fig. 5, a transportation operation decision support device 20 according to one embodiment of the present invention is configured by an information processing device such as a personal computer, and includes an arithmetic processing device 21, a display device 22, an input device 23, and an operation information database (operation information DB) 24.

[0025] The arithmetic processing unit 21 is configured with an arithmetic processing unit such as a CPU, and functions as a source inventory transition display unit 21a, a minimum transport work list generation unit 21b, a selected transport work list generation unit 21c, and a destination margin display unit 21d by executing a computer program stored in a storage unit such as a ROM (not shown). The functions (operations) of each of these units will be described later.

[0026] The display device 22 is configured with a display device such as a liquid crystal display, and displays and outputs various information in accordance with control signals output from the arithmetic processing device 21. In addition to the display device 22, output devices such as an audio output device and a printing device may be provided. The input device 23 is configured with operation input devices such as a keyboard, a mouse pointer, a touch panel, and a microphone, and inputs operation input information from the user to the arithmetic processing device 21.

[0027] The operation information DB 24 is configured with a nonvolatile storage device such as a hard disk, and stores various information required for the operation of the transportation work decision support device 20. The information stored in the operation information DB 24 is updated when the work status of the facility changes or when an update is performed by the transportation work decision support process described below. In the logistics facility 1 shown in FIG. 1, when the transport vehicle 4 starts or finishes work, a communication device installed on the transport vehicle 4 transmits that information to the operation information DB 24. The operation information DB 24 updates the information in the operation information DB 24 according to the information transmitted from the communication device. In addition, a similar communication device is installed on the overhead crane 3, and transmits information to the operation information DB 24 when the overhead crane 3 starts or finishes movement, or when the coil C is loaded or unloaded.

[0028] In this embodiment, the operation information DB 24 includes a facility information storage unit 24a, a work information storage unit 24b, and a cargo information storage unit 24c.

[0029] The equipment information storage unit 24a stores information about the storage location (product yard 2 and building 8) where the coils C are stored and the loading and unloading equipment (overhead crane 3 and transport vehicle 4) that transfers the coils C. In this embodiment, the equipment information storage unit 24a stores information about the operation and specifications of the equipment. Examples of the equipment operation information include the number of loading and unloading equipment units, their current location, and information about downtime and maintenance. Examples of the information about the equipment specifications include the cycle time of the overhead crane 3, the standard travel time of the transport vehicle 4, the maximum number of products that can be loaded onto the transport vehicle 4, and information about the storage location capacity.

[0030] In this embodiment, the equipment information storage unit 24a stores a coil size group table as shown in FIGS. 6(a) and 6(b) and a storage space capacity table as shown in FIG. 7. The coil size group table shown in FIGS. 6(a) and 6(b) defines predetermined groups of coils C for each range of width and outer diameter of the coils C. The storage space capacity table shown in FIG. 7 indicates the capacity (maximum inventory number) of each storage space defined for each size group of stored coils C, and each storage space is assigned unique identification information (storage space ID, see FIG. 1) in advance. In the storage space capacity table shown in FIG. 7, a storage space for which a size group of coils C is not defined is a storage space (product yard 2) for which there are no restrictions on the size group of coils C.

[0031] Returning to FIG. 5, the work information storage unit 24b stores various information related to transportation work. In this embodiment, the work information storage unit 24b stores a list of transportation work that has been completed (hereinafter abbreviated as the completed work list), a list of transportation work that has already been included in the execution plan (hereinafter abbreviated as the scheduled work list), and a list of transportation work that are candidates for inclusion in the execution plan (hereinafter abbreviated as the candidate work list). The completed work list includes information regarding the unique identification information (product ID) assigned to the transported coil C, the type of work performed (transport, unloading), the origin, the destination, the start date and time (actual), and the end date and time (actual). The scheduled work list includes information regarding the number of products for each coil size group to be transported, the type of work to be performed (transport, unloading), the origin, the destination, the start date and time (planned), and the end date and time (planned), as shown in FIG. 8, for example. The candidate work list includes information regarding the origin, destination, start date and time (planned), end date and time (planned), and the minimum number of products for the coil C.

[0032] Returning to FIG. 5, the cargo information storage unit 24c stores information about the coils C to be transported. In this embodiment, the cargo information storage unit 24c stores inventory information, transport lot information, delivery schedule information, and product information about the coils C. The inventory information about the coils C can be, for example, information about the coils C currently stored in each storage location (storage location ID, width group, outer diameter group, product ID, coil width, coil outer diameter, coil weight, etc.) as shown in FIG. 9. The transport lot information can be, for example, information about the coils C transported from the product yard 2 to the building 8, grouped in pallets (unique identification information (transport lot ID) assigned to each transport lot, transport origin, transport destination, pallet type, customer area, transport date and time, product ID, coil width, coil outer diameter, coil weight, etc.) as shown in FIG. 10. In the transport lot information shown in FIG. 10, one record (row) is set for each transported coil C, and the coils C transported in the same transport lot have the same transport lot ID.

[0033] The planned delivery information includes a delivery destination correspondence table as shown in FIG. 11 and planned delivery product information as shown in FIG. 12. The delivery destination correspondence table shown in FIG. 11 specifies the delivery destination of coil C for each customer area defined for each factory, and the building 8 to which coil C within the factory is to be delivered is determined according to the customer area to which the coil C is to be delivered. The planned delivery product information shown in FIG. 12 is information created based on a production plan for coil C and includes information about coil C to be delivered to product yard 2 (product ID, type, coil width, coil outer diameter, coil weight, customer area, delivery product yard, planned delivery date and time, etc.). Examples of planned shipping product information include the name of the ship used to ship coil C stored in building 8, hatch, berth, loading crane, loading order, planned delivery date and time, and information about the product ID, width group, and outer diameter group of the coil C to be shipped, as shown in FIG. 13.

[0034] Here, we will explain the differences between the completed work list, scheduled work list, and candidate work list mentioned above. The completed work list is a list of transportation work that has been completed, while the scheduled work list and candidate work list are both lists of transportation work that has not yet been performed. The difference between the latter two work lists is whether or not the number of products per coil size group to be transported in that work has been determined. The scheduled work list contains information about the number of products per coil size group, i.e., information about the number of products to be transported, but the candidate work list does not.

[0035] In this embodiment, when planning transportation work to be performed within a work determination target period, it is assumed that the specific coils C (product IDs) to be transported within that work determination target period have not yet been determined. In other words, it is assumed that operations may involve transporting coils C that are not included in either the inventory information (FIG. 9) or the planned delivery product information (FIG. 12), which will be described later. In such operations, for example, a transportation work plan is first created that specifies the source, destination, start date and time of transportation, and end date and time of transportation in response to a transportation request, etc. Then, once the coils C (product IDs) for each coil size group assigned to the transportation work plan are known, the specific coils C to be transported in each transportation work are determined.

[0036] The candidate work list is the work included in this transportation work plan that is prepared temporarily. The scheduled work list (FIG. 8) is the work included in the transportation work plan that has confirmed the number of products (quantity 1, quantity 2) and work time (transportation date and time) for each coil size group linked to the candidate work list. As will be described later, in this embodiment, the coils C for each coil size group linked to the candidate work list are determined, and the number of products for each coil size group to be transported and the work time are confirmed to generate the scheduled work list. The information in the candidate work list, such as the destination, start date and time, and end date and time, may be changed and saved in the scheduled work list.

[0037] Furthermore, the transport lot information (Fig. 10) is one of the execution plan lists generated by automatically linking the product IDs and transport lot IDs of packaged products (i.e., products stored as inventory at the transport source) that have been transported to the transport source in order of earliest start date and time to the transport work included in the scheduled work list. Scheduled work that has been linked to a product is saved in the transport lot information and deleted from the scheduled work list.

[0038] The transportation operation decision support device 20 having such a configuration supports the process of determining a transportation operation plan that suppresses the occurrence of product yard clogging by executing the transportation operation decision support process described below. Below, the operation of the transportation operation decision support device 20 when executing the transportation operation decision support process will be described with reference to the flowchart shown in Figure 14.

[0039] [Transportation work decision support processing] Fig. 14 is a flowchart showing the flow of a transportation work decision support process according to one embodiment of the present invention. The flowchart shown in Fig. 14 starts when an execution command for the transportation work decision support process (hereinafter abbreviated as support process) is input to the transportation work decision support device 20, and the support process proceeds to step S1.

[0040] In the process of step S1, the arithmetic processing device 21 extracts information necessary for executing the support process from the operation information DB 24. This completes the process of step S1, and the support process proceeds to the process of step S2.

[0041] In the processing of step S2, the source inventory transition display unit 21a generates source inventory transition information, which is time-series information on the inventory quantity of coils C in each product yard 2, using information on the coils C entering and leaving each product yard 2 during the work determination target period. Then, the source inventory transition display unit 21a displays the generated source inventory transition information on the display device 22. Specifically, the source inventory transition display unit 21a generates the source inventory transition information using a scheduled work list (FIG. 8), inventory information (FIG. 9), transport lot information (FIG. 10), and scheduled delivery product information (FIG. 12). Note that if no transportation work to be performed within the work determination target period has been determined, i.e., if the transportation work determination support device 20 is started for the first time for the work determination target period, the scheduled work list and transport lot information do not exist.

[0042] The following describes in detail the procedure by which the source inventory transition display unit 21a generates source inventory transition information using the scheduled work list, inventory information, transport lot information, and product information scheduled for delivery. First, the source inventory transition display unit 21a tallies the number of coils stored in each product yard 2 using the inventory information shown in FIG. 9 to calculate the number of coils (initial inventory quantity) at the start of the work determination target period. In the inventory information shown in FIG. 9, for the product yard 2 with yard ID B01Y, there are no storage space restrictions based on the width group and outer diameter group of coil C (see FIG. 7), so these two items are blank. Therefore, the initial inventory quantity can be calculated by summing up the records with yard ID B01Y. On the other hand, in building 8 with yard ID Q01, storage spaces are restricted by the width group and outer diameter group of coil C (see FIG. 7), so the initial inventory quantity can be calculated by summing up the records with yard ID Q01 and all of the same width group and outer diameter group of coil C. In the process of step S2, only the initial inventory quantity of each product yard 2 is calculated, and the initial inventory quantity of each building 8 is calculated in the process of step S5.

[0043] Then, the source inventory transition display unit 21a generates source inventory transition information using the calculated initial inventory quantity of each product yard 2, the scheduled work list, transport lot information, and planned-to-be-delivered product information. For example, when generating inventory transition information for product yard 2 with yard ID B01Y, the source inventory transition display unit 21a extracts records of the incoming product yard with yard ID B01Y from the planned-to-be-delivered product information (FIG. 12), and increments the inventory quantity of product yard 2 with yard ID B01Y by 1 at the planned delivery date and time of each extracted record. In addition, the source inventory transition display unit 21a extracts records of the source yard ID B01Y from the transport lot information (FIG. 10), and decrements the inventory quantity of product yard 2 with yard ID B01Y by 1 at the delivery date and time of each extracted record. Furthermore, the source inventory transition display unit 21a extracts records whose source yard ID is B01Y from the scheduled work list (FIG. 8), and reduces the inventory quantity in product yard 2 whose yard ID is B01Y by the number specified in the scheduled work list at the transportation date and time of each extracted record. This makes it possible to generate inventory transition information for product yard 2 whose yard ID is B01Y.

[0044] An example of source inventory transition information is shown in Figure 15. In the example shown in Figure 15, the work determination target period is set to 2022 / 10 / 18 15:00 - 2022 / 10 / 19 3:00, and the target product yard is set to product yard 2 with yard ID B01Y. As shown in Figure 15, the initial inventory quantity is substituted for the "inventory quantity" at 2022 / 10 / 18 15:00, and thereafter the "inventory quantity" increases or decreases depending on the transportation date and time of the records in the scheduled work list, transportation lot information, and scheduled delivery product information.

[0045] After generating the source inventory transition information in this manner, the source inventory transition display unit 21a then generates source inventory transition display information for displaying the generated source inventory transition information on the display device 22. Figure 16 shows an example of the source inventory transition display information. In the source inventory transition display information shown in Figure 16, the "inventory quantity" is the same as the "inventory quantity" in the source inventory transition information. The "requested number of coils to be removed" indicates the number of coils that need to be removed by adding a work plan to the scheduled work list or transport lot information by the predicted time when the "inventory quantity" in the target product yard will exceed the "inventory upper limit quantity" (i.e., the predicted time when product yard congestion will occur) in order to avoid product yard congestion. The "number of coils exceeding the inventory upper limit on the relevant date and time (number of coils exceeding the storage space capacity upper limit or the excess number)" and the "previous maximum number of coils exceeding the inventory upper limit (number of coils exceeding the storage space capacity upper limit)" are used to calculate the "requested number of coils to be removed" using the following procedure.

[0046] The "number of items exceeding the upper limit of inventory on the relevant date and time" is calculated using the formula below. If the calculated value is negative, the number of items exceeding the upper limit of inventory on the relevant date and time will be set to 0.

[0047] "Number of items exceeding the upper limit of inventory on the relevant date and time" = "Number of items in stock" on the relevant date and time - upper limit of inventory (see Figure 7)

[0048] Then, the maximum value of the "number exceeding the inventory upper limit on the relevant date and time" on dates and times before the relevant date and time is set as the "previous maximum number exceeding the inventory upper limit," and the "number of items requested for removal" is calculated according to cases 1 to 3 below, starting with the record with the latest date and time.

[0049] (Case 1) If the inventory quantity on the relevant date and time exceeds the inventory limit and the excess inventory quantity on the relevant date and time is greater than the maximum excess inventory quantity from the previous date and time, the number of requests for removal = the excess inventory quantity on the relevant date and time (Case 2) If the inventory quantity on the relevant date and time exceeds the inventory limit and the excess inventory quantity on the relevant date and time is less than or equal to the maximum excess inventory quantity previously, the number of requests for removal = 0 (Case 3) If the inventory quantity on the relevant date and time does not exceed the inventory limit: Number of carry-out requests = Number of carry-out requests on the immediately following date and time (If the relevant date and time is the last time of the work decision period, the number of carry-out requests = 0)

[0050] Figure 17 shows an example of a source inventory trend display screen displayed on the display device 22 using the source inventory trend display information shown in Figure 16. In the source inventory trend display information shown in Figure 16, the timings at which the "stock quantity" exceeds the "upper limit stock quantity (51 in this example)" include (a) 2022 / 10 / 18 16:00 (excess number: 3), (b) 2022 / 10 / 18 19:00-2022 / 10 / 19 0:00 (excess number: 6), and (c) 2022 / 10 / 19 0:30 (excess number: 3). In contrast, the "number of requests for removal" remains constant at 3 from before timing (a) (2022 / 10 / 18 15:00) until timing (a), increases from 3 to 6 after timing (a) (2022 / 10 / 18 16:30), and then remains constant at 6 until the first time of timing (b), after which it remains constant at 0.

[0051] In this case, the value of "requested number of shipments" indicates that, in order to avoid clogging of the product yard, three coils C must be shipped from product yard 2 with location ID B01Y, more than the planned number, by the time of timing (a) when the requested number of shipments continues to have a value of 3. It also indicates that a total of six coils C (three of which must be shipped by timing (a)) must be shipped by the first time of timing (b) when the requested number of shipments continues to have a value of 6. Note that the excess number at timings (b) and (c) is automatically resolved once six coils C, in addition to the planned number, are shipped by the first time of timing (b), and the excess over the upper limit of "inventory quantity" is resolved, and therefore no further coils C need to be shipped, and the "requested number of shipments" for this period is 0.

[0052] The final time when the "requested number of items to be carried out" has a certain consecutive value (2022 / 10 / 18 16:00, the final time when the "requested number of items to be carried out" has a consecutive value of 3, and the final time when the "requested number of items to be carried out" has a consecutive value of 6) can be determined as the time when the carrying-out operation of coil C from product yard 2 should be added. Therefore, as shown in FIG. 17, by graphing the changes in the inventory quantity and the "requested number of items to be carried out" and displaying them on display device 22, and visualizing the changes in the inventory quantity and the requested number of items to be carried out in each product yard 2, the user can easily understand the timing of carrying out transportation work to avoid product yard congestion. This allows the user to easily change the transportation work plan to avoid product yard congestion based on the information displayed on the source inventory trend display screen shown in FIG. 17.

[0053] In the processing of step S2, the source inventory transition display unit 21a also generates source inventory transition information for each coil size group and each destination in each product yard 2 as information to be used in determining the transportation work plan. FIG. 18 shows an example of source inventory transition information for each coil size group and each destination. The "inventory quantity" item in the source inventory transition information shown in FIG. 18 is obtained by determining the destination from the customer area of ​​each coil C using the destination correspondence table shown in FIG. 11 and the planned delivery product information shown in FIG. 12 and tallying up the number of coils for each destination. Since the product yard 2 with yard ID B01Y is a yard of factory B (see FIG. 1), building 8 with yard ID Q01 is set as the destination for coil C in customer area DO-1 (see FIG. 11). FIG. 19 shows an example of the source inventory transition information shown in FIG. 18 graphed and displayed on the display device 22. As shown in Figure 19, by displaying the source inventory transition information shown in Figure 18 in a graph, the inventory quantity for each destination and coil third group can be visualized, making it easy to understand the timing for transporting coil C. This completes the processing of step S2, and the support processing proceeds to step S3.

[0054] Returning to FIG. 14, in the process of step S3, the minimum transport work list generation unit 21b generates, as a minimum transport work list, a list of transport work required to prevent the inventory quantity in the product yard 2 from exceeding the upper limit of inventory. In the example shown in FIGS. 16 and 17, unless at least three coils C are removed by 16:00 on October 18, 2022, and at least six coils C (including the aforementioned three) are removed by 19:00 on October 18, 2022, there is a risk that the inventory quantity in the product yard 2 with the storage area ID B01Y will exceed the upper limit of inventory, causing the factory line to stop (so-called product yard congestion). Therefore, in the process of step S3, the minimum transport work list generation unit 21b generates, as a minimum transport work list, a list of the minimum transport work required to prevent the inventory quantity in the product yard 2 from exceeding the upper limit of inventory.

[0055] Specifically, the minimum transportation work list generation unit 21b determines the minimum number of coils C to be shipped and the shipping time (transportation date and time) based on the requested shipping number (see FIG. 16) included in the source inventory transition display information generated in the processing of step S2. Then, the minimum transportation work list generation unit 21b extracts information on coil size groups and destinations of coils C that have an inventory quantity equal to or greater than the requested shipping number and that are to be shipped by the determined shipping time, from the source inventory transition information (FIG. 18) for each coil size group and each destination, and generates a list of transportation work tasks with the destinations of the extracted coils C as destinations, as a minimum transportation work list.

[0056] An example of a minimum transportation work list generated in accordance with the following criteria (1) to (3) is shown in Figure 20. The minimum transportation work list may be generated by selecting transportation works that satisfy the conditions from among the transportation works included in the candidate work list.

[0057] (1) Criteria for determining the date and time of transportation work: Set the latest date and time that does not exceed the upper limit of storage space (upper limit of inventory) (2) Criteria for determining the destination of transportation work: Select the destination with the largest inventory in product yard 2 at the time of the transportation work date and time. (3) Criteria for determining the coil size group of transported products: Select the coil size group with the largest inventory in product yard 2 (if there is not enough, select another coil size group).

[0058] The procedure for generating the minimum transport work list shown in Fig. 20 will be described in detail. First, the minimum transport work list generation unit 21b references the source inventory trend display information shown in Fig. 16, and generates transport work for three coils with the transport date and time set to 2022 / 10 / 18 16:00, the latest consecutive time at which the desired carry-out quantity is three, based on (1) the transport work date and time determination criteria. Furthermore, the minimum transport work list generation unit 21b generates transport work for three coils (together with the previous transport work, for a total of six coils) with the transport date and time set to 2022 / 10 / 18 19:00, the latest consecutive time at which the desired carry-out quantity is six.

[0059] Next, the minimum transport operation list generation unit 21b determines the destinations of the two generated transport operations based on (2) the transport operation destination determination criteria. At this time, the minimum transport operation list generation unit 21b checks the inventory quantities of all coil sizes at each destination at the transport date and time of the transport operation by referring to the source inventory transition information for each coil size group and each destination shown in FIG. 18 , and selects the destination with the largest inventory quantity in the product yard 2 to improve transport efficiency. In this example, since the destination with the largest inventory quantity for both transport operations is building 8 with yard ID Q01, the minimum transport operation list generation unit 21b sets building 8 with yard ID Q01 as the destination for both transport operations. Finally, the minimum transport operation list generation unit 21b determines the coil size group of the coil C for each transport operation based on (3) the transport product coil size group determination criteria. Here, the minimum transport operation list generation unit 21b selects the coil size group of the coil C with the largest inventory quantity among the coils C to be transported to building 8 with yard ID Q01 at the transport date and time. In this example, since the width group W2 and the outer diameter group D2 have the largest inventory for both transportation tasks, the minimum transportation task list generator 21b selects these coil size groups. This completes the processing of step S3, and the support processing proceeds to step S4.

[0060] Returning to FIG. 14, in the processing of step S4, the selected transport work list generation unit 21c uses the inventory transition information of each product yard 2 to select transport work for which there is a sufficient inventory of coils in the product yard 2 to be transported from among the transport work included in the candidate work list, and generates a list of the selected transport work as a selected transport work list. FIG. 21 shows an example of the selected transport work list. When selecting a transport work from the candidate work list, the selected transport work list generation unit 21c checks whether there is a sufficient inventory of coils in the product yard 2 to be transported, using the inventory transition information of each product yard 2. Specifically, the selected transport work list generation unit 21c selects one transport work from the target product yard included in the candidate work list in order of earliest start date and time. Then, if the inventory quantity in the target product yard at the start of the selected transport work exceeds the minimum number of products for the selected transport work (candidate work list), the selected transport work list generation unit 21c determines that there is a sufficient inventory of coils to be transported and adds the transport work to the selected transport work list.

[0061] However, if there is a transportation operation (selected transportation operation list) already selected with the same product yard 2 as the transportation source, the selected transportation operation list generation unit 21c, when selecting another transportation operation, checks whether the inventory quantity of coils C after subtracting the minimum product quantity of the already selected transportation operation from the inventory quantity in the product yard 2 satisfies the above condition. The requested number of products is information for generating the minimum transportation operation list, and reference to the requested number of products is not necessary to generate the selected transportation operation list. As shown in FIG. 21, the data structure of the selected transportation operation list is the same as that of the minimum transportation operation list. In this embodiment, the quantity for each coil size group is not set in each record of the selected transportation operation list at the time of processing in step S4. Furthermore, transportation operations included in the minimum transportation operation list and the selected transportation operation list are not yet included in the execution plan at this point, and therefore are not included in the scheduled operation list. Transportation operations included in the minimum transportation operation list and the selected transportation operation list are selected in the processing in step S6, which will be described later, and then added to the scheduled operation list. This completes the processing in step S4, and the support processing proceeds to processing in step S5.

[0062] Returning to Figure 14, in the processing of step S5, the destination margin display unit 21d generates destination inventory trend information, which is time sequence information of the inventory quantity and vacant quantity (acceptance margin) of coil C in each building 8, using the inventory quantity of coil C in each building 8 and the inflow and outflow information of coil C during the work determination target period. The information used to generate the destination inventory trend information is the scheduled work list (Figure 8), inventory information (Figure 9), transport lot information (Figure 10), and scheduled shipping product information (Figure 13). Below, the procedure for generating the destination inventory trend information will be explained in detail.

[0063] FIG. 22 shows an example of destination inventory transition information (including transitions in available quantities) for building 8 with a yard ID of Q01 (designated coil size group: width group W2, outer diameter group D2). The method for generating source inventory transition information for the designated coil size group in building 8 with a yard ID of Q01 is the same as the method for generating source inventory transition information for product yard 2 in the processing of step S2. The "inventory quantity" shown in FIG. 22 is calculated as time sequence information for the inventory quantity from the transitions in the increase and decrease in the inventory quantity of the designated coil size group in building 8 with a yard ID of Q01. The "available yard quantity" represents the number of available yard spaces for the designated coil size group in building 8 with a yard ID of Q01, and can be obtained by subtracting the "inventory quantity" of the designated coil size group from the upper limit inventory quantity for width group W2 and outer diameter group D2 (see FIG. 7).

[0064] The "excess number of vacant storage spaces (acceptance margin)" represents the actual number of vacant storage spaces available for additional storage (delivery) to transportation work for which the work time has been confirmed, and is the value calculated as the smallest "excess number of storage spaces" at the target date and time and any date and time after the target date and time (but within the work determination target period). For example, in the example shown in Figure 22, the "excess number of storage spaces" is 3 at timing (d) (2022 / 10 / 18 15:00), but in the transportation work plan, the "excess number of storage spaces" will be 0 at timing (e) (2022 / 10 / 18 16:30), and the inventory in building 8 with storage space ID Q01 will reach the inventory limit. Therefore, the number of vacant storage spaces in building 8 at timing (d) is effectively 0, and the "excess number of vacant storage spaces" is 0.

[0065] Therefore, even if coil C is transported to this area (the area for building 8 with storage area ID Q01, width group W2, and outer diameter group D2) at timing (d), the coil C scheduled to be delivered at a later timing (e) cannot be stored (the "excess storage area quantity" is 0 because there is already a transportation operation planned at timing (e)). However, if the transportation operation is performed on a date and time when the value of the "excess product acceptance quantity for transportation" is sufficiently large, coil C can be stored without any problems. In this example, since the "excess product acceptance quantity for transportation" is 3 or more from timing (f) (2022 / 10 / 18 22:00) onwards, it will be added to the transportation operation plan and coil C for that area can be transported (delivered).

[0066] Figure 23 shows an example of a display screen showing the changes in the "inventory quantity" and "transported product acceptance margin (acceptance margin)" for the specified coil size group (width group W2, outer diameter group D2) in building 8 with storage yard ID Q01. By displaying the display screen shown in Figure 23 on display device 22 and presenting the user with the changes in the "inventory quantity" and "transported product acceptance margin" of the warehouse storage yard, the user can more easily decide what time period to perform additional transportation work that is not included in the transportation work plan. This completes the processing of step S5, and the support processing proceeds to the processing of step S6.

[0067] Returning to FIG. 14, in the processing of step S6, the arithmetic processing device 21 outputs to the display device 22 a work assignment screen for the user to perform an operation to assign time periods to be performed for the transportation work included in the minimum transportation work list and the selected transportation work list. Then, the input device 23 inputs the user's operation input information (information related to the assignment operation) to the arithmetic processing device 21. An example of the work assignment screen is shown in FIG. 24. The user gradually determines the transportation work plan by operating the work assignment screen shown in FIG. 24. In the example shown in FIG. 24, the minimum transportation work list and the selected transportation work list are displayed on the right side of the screen, inventory transition information for the factory's product yard and product warehouse is displayed in the upper left part of the screen, and a work assignment unit that determines the work times for the transportation work included in the minimum transportation work list and the selected transportation work list is located in the lower left part of the screen.

[0068] The user assigns work by using the input device 23 to click on a transport task displayed in the minimum transport task list and selected transport task list, and then dragging and dropping the selected transport task into the time period to which it is to be assigned in the task assignment section at the bottom left of the screen. The inventory transition information (display) at the top left of the screen is reference information when assigning work, and is used to check whether the stock limit at the source or destination is exceeded. When a new transport task is assigned, pressing the "Update" button at the bottom right of the screen will calculate the inventory transition for the new assignment, and update the inventory transition information (display). Note that even if all necessary transport tasks have not been assigned, it is possible to press the update button to perform an inventory transition calculation.

[0069] Furthermore, although the transport date and time of the transport work are set in the minimum transport work list and selected transport work list, the date and time assigned by drag and drop may differ from this transport date and time. Transport work that is colored (hatched) in the work assignment section indicates transport work that was already assigned before the last time the update button was pressed. When a transport work that has already been assigned in the work assignment section is selected, a change screen like the one shown in Figure 25 opens, allowing changes to be made to the transport work assignment details on this screen. Examples of information that can be changed on this change screen include the transport destination, maximum number of products that can be loaded, and the target product coil size group.

[0070] The destination is the destination of the transport operation, and can be changed by entering a new destination on the change screen. The maximum number of loaded products is the upper limit of the number of coils that can be transported at one time for the target transport operation. If no other value is specified, a default value will be set. The target product coil size group is an item used to limit the size group of the coils C to be transported. In the example shown in Figure 25, only coils C in width group W2 and outer diameter group D2 are targeted for transport. If no other value is specified, coils C from all size groups will be targeted for transport. In addition, if multiple size groups are targeted for transport, the maximum number of products that does not exceed the maximum number of loaded products based on the inventory ratio at the time of the transport operation will be assigned to this transport operation. After entering the information, pressing the "Change" button on the change screen will complete the process of changing the operation content. Note that this change process on the change screen can also be performed on assigned operations (operations colored in the operation assignment section) on the screen shown in Figure 24.

[0071] Figure 26 shows the inventory transition results for building 8 (area with width group W2 and outer diameter group D2) with yard ID Q01 when only one transportation task shown in Figure 25 is newly assigned and updated on the task allocation screen shown in Figure 24. It can be seen that the upper limit of inventory for building 8 (area with width group W2 and outer diameter group D2) with yard ID Q01 was reached at 16:00 on October 18, 2022, when the transportation task shown in Figure 25 was performed, and this transportation task could not be performed in actual operations. However, if coil C is not removed from product yard 2 with yard ID B01Y at 16:00, the inventory in product yard 2 with yard ID B01Y will exceed the upper limit (causing a product yard congestion), as shown in Figure 17. Therefore, it is necessary to somehow remove coil C from product yard 2 with yard ID B01Y. In this case, the following measures are possible. The user can decide on the transportation work by taking the following measures so that the inventory quantity in the destination building 8 does not exceed the inventory upper limit. This completes the processing of step S6, and the support processing proceeds to the processing of step S7.

[0072] - Change the destination from building 8 with yard ID Q01 to another building 8 - Changed the coil size group of the target product in building 8 with storage ID Q01.

[0073] Returning to Figure 14, in the processing of step S7, the arithmetic processing device 21 determines the work times of the transport work included in the minimum transport work list and the selected transport work list based on the operation input information entered in the processing of step S6, and incorporates them into the transport work plan. Then, the arithmetic processing device 21 modifies the transport work plan and updates the display contents of the source inventory transition information and the destination inventory transition information in accordance with the modifications. This completes the processing of step S7, and the support processing proceeds to the processing of step S8.

[0074] In the process of step S8, the user looks at the contents of the display screen and determines whether or not correction is necessary. If the result of the determination is that correction is necessary (step S8: Yes), the user executes the process of step S6 again. On the other hand, if correction is not necessary (step S8: No), the user operates the input device 23 to input an instruction to end the support process. This completes the process of step S8, and the series of support processes ends.

[0075] As is clear from the above description, in the support processing according to one embodiment of the present invention, the source inventory transition display unit 21a generates and displays, as source inventory transition information, information regarding the transition in the inventory quantity of coils C in the product yard 2. The minimum transport work list generation unit 21b uses the source inventory transition information to generate and display, as a minimum transport work list, a list of transport work that must be performed at a minimum so that the inventory quantity of coils C in the product yard does not exceed an upper limit. The selected transport work list generation unit 21c uses the source inventory transition information to select transport work that has an inventory quantity of coils C in the product yard 2 that is equal to or greater than the minimum number specified in the candidate work list from a pre-created list of candidate transport work to be performed, and generates and displays a list of the selected transport work as a selected transport work list. The destination margin display unit 21d uses information regarding the transition in the inventory quantity of coils C in building 8 to generate and display information regarding the transition in the acceptance margin for coils C in building 8. Then, the source inventory trend display unit 21a and the destination margin display unit 21d update the display contents to reflect the setting contents as the time periods for performing the transportation work included in the minimum transportation work list and the selected transportation work list are set.

[0076] This configuration can assist in the process of determining a transportation work plan that reduces the occurrence of product yard clogging. As a result, the user can efficiently determine a transportation work plan that reduces the occurrence of product yard clogging. Specifically, the user can reduce the occurrence of product yard clogging in the near future by selecting transportation work to be performed from the minimum transportation work list. Furthermore, the user can reduce the risk of product yard clogging in the future by selecting transportation work to be performed from the selected transportation work list.

[0077] The above describes an embodiment of the invention developed by the present inventors. However, the present invention is not limited to the descriptions and drawings that form part of the disclosure of the present invention according to this embodiment. For example, in this embodiment, the destination of coil C is limited to one building 8, but the destination of coil C may be a group of multiple buildings 8. Also, in this embodiment, the user directly assigns transportation tasks, but transportation tasks may also be assigned in cooperation with the device. For example, after the device generates a transportation task plan, the user may check the capacity of each storage area and modify the plan as appropriate. As such, all other embodiments, examples, operational techniques, etc., made by those skilled in the art based on this embodiment are included in the scope of the present invention. [Explanation of symbols]

[0078] 1 Logistics equipment 2 product yards 3. Overhead crane 4 Transport vehicles 5 palettes 6 Traction section 7 Frontage 8 buildings 9. Off-site temporary storage area 10 Mounting stand 20. Transportation work decision support device 21 Processing unit 21a Source inventory transition display section 21b Minimum transport work list generation unit 21c Selective transport work list generation unit 21d Destination margin display section 22 Display device 23 Input Devices 24 Operation Information Database (Operation Information DB) 24a Equipment information storage department 24b Work information storage section 24c Baggage Information Storage Department C coil

Claims

1. A transportation work decision support device that supports a process of determining a plan for transportation work to move an article from a first storage site belonging to a first storage site group to a second storage site belonging to a second storage site group using transportation equipment, a source inventory transition display unit that generates and displays information regarding the transition of the inventory number of the items in the first storage area as source inventory transition information; a minimum transport work list generation unit that uses the source inventory transition information to generate and display a list of the minimum transport work that must be performed to prevent the inventory number of the goods in the first storage yard from exceeding an upper limit; a selected transport work list generation unit that uses the source inventory transition information to select transport work in which the inventory number of goods in the first yard is equal to or greater than the minimum number specified in a candidate work list, which is a list of candidates for transport work to be performed that has been created in advance, and generates and displays the list of selected transport works as a selected transport work list; a destination margin display unit that generates and displays information regarding the transition of the inventory quantity of items in the second storage area using information regarding the transition of the inventory quantity of items in the second storage area; Equipped with the source inventory transition display unit and the destination margin display unit update the display contents to reflect the setting contents in response to the setting of time periods for performing the transportation operations included in the minimum transportation operation list and the selected transportation operation list. Transportation work decision support device.

2. The transportation work decision support device of claim 1, wherein the source inventory trend display unit calculates and displays the number of items that need to be transported from the first storage location to the second storage location for each time within the work decision period as a requested number of items to be transported, using information regarding the number of items that exceed the upper limit for each time within the work decision period and the maximum number of items that exceed the upper limit at any time prior to that time.

3. The transportation work determination support device according to claim 2 , wherein the minimum transportation work list generation unit generates the minimum transportation work list using information related to the desired number of carry-outs.

4. The transport work decision support device according to any one of claims 1 to 3, wherein the destination availability display unit calculates and displays the minimum value of the available number of storage spaces after each time within the work decision period as the available number of transported products.

5. A transportation operation decision support method for supporting a process of determining a transportation operation plan for moving an article from a first storage site belonging to a first storage site group to a second storage site belonging to a second storage site group using transportation equipment, comprising: a first step of generating and displaying information relating to a change in the number of items in stock at the first storage location as source inventory change information; a second step of generating and displaying a list of the minimum transportation operations that must be performed to prevent the inventory number of the goods in the first storage area from exceeding an upper limit value using the source inventory transition information; a third step of using the source inventory transition information to select transportation work in which the inventory number of goods in the first yard is equal to or greater than the minimum number specified in a candidate work list, which is a list of candidates for transportation work to be performed that has been created in advance, and generating and displaying the list of selected transportation work as a selected transportation work list; a fourth step of generating and displaying information regarding a change in the inventory quantity of items in the second storage area using information regarding a change in the inventory quantity of items in the second storage area; Including, The first step and the fourth step include a step of updating the display content to reflect the setting content in response to the setting of time periods for performing the transportation work included in the minimum transportation work list and the selected transportation work list. A method for supporting transportation work decisions.

Images