Logistics planning system and method

Abstract

To evaluate a physical distribution plan of a recycling business in consideration of a value obtained by recycling.SOLUTION: Calculating an economic evaluation value obtained by economically evaluating a series of operations for a logistics scenario in which the series of operations from collection of a used product generated from a use site to reutilization of the used product by a reutilization operation site and delivery are defined, a first environmental evaluation value obtained by evaluating an environmental load of the series of operations, and a second environmental evaluation value obtained by evaluating a reduction in resources in manufacturing a future product obtained by the series of operations; On the basis of the economic evaluation value, the first environmental evaluation value and the second environmental evaluation value, a total evaluation value for totally evaluating the physical distribution scenario is calculated.SELECTED DRAWING: Figure 4

Description

[Technical Field]

[0001] The present disclosure relates to a technology for supporting logistics planning related to the reuse of products. [Background technology]

[0002] In recent years, due to factors such as worsening environmental problems and resource depletion, as well as the promotion of Industrial Revolution 4.0 and changes in consumer awareness, there is a growing demand for an environmentally friendly circular economy system rather than the traditional linear economic system. In particular, promoting reuse or rebuilding businesses that reuse used products at the product or component level is more effective in reducing environmental impact than recycling, which returns used products to their raw materials and reuses them.

[0003] In order to expand the recycling business as a whole, it is necessary to streamline operations from collection to dismantling of used products, and it is also necessary to consider the environmental impact of these operations.

[0004] Patent Document 1 discloses a planning system that creates a logistics plan that is robust against the uncertainty of the appropriate response method for a series of logistics plans in which used products are collected, disassembled, and then reassembled and reused using parts that have been serviced using an appropriate response method.

[0005] The planning system of Patent Document 1 includes a planning unit that creates a logistics plan for delivering products to be maintained from a base of use, disassembling, maintaining, assembling, and delivering them back to the base of use; an evaluation unit that calculates an evaluation value for the logistics plan; a selection unit that selects the logistics plan based on the evaluation value; and a control unit that instructs the creation of the logistics plan. The planning unit creates a logistics plan for each combination of handling methods for the multiple parts. The evaluation unit calculates a first evaluation value for the logistics plan created for each combination of handling methods, multiplies the first evaluation value by the occurrence probability of the handling method to calculate a second evaluation value, and calculates a third evaluation value by summing the second evaluation values ​​of all handling methods. The selection unit selects the logistics plan based on the third evaluation value. [Prior art documents] [Patent documents]

[0006] [Patent Document 1] Japanese Patent Publication No. 2022-49242 Summary of the Invention [Problem to be solved by the invention]

[0007] In the recycling business, economic or environmental value is created by reusing collected and recycled products and parts. However, the planning system in Patent Document 1 optimizes the logistics plan for the venous side from collection to recycling from the perspective of robustness, and does not take into account the value created by the subsequent reuse of products and parts when creating the logistics plan.

[0008] One objective of the present disclosure is to provide a technology that enables the evaluation of logistics plans for recycling projects taking into account the value that can be obtained through reuse. [Means for solving the problem]

[0009] A logistics planning system according to one aspect included in the present disclosure is a logistics planning system that creates a logistics plan related to the reuse of products, and includes a memory and a processor. The memory stores use base information, which is information about use bases where used products are generated, recycling business base information, which is information about recycling business bases that perform work related to the reuse, environmental load coefficient information for delivery or work related to the reuse of the used products, part information, which is information about parts that make up the products, and material price information for materials that make up the parts. The processor processes the use base information, the recycling business base information, and Based on the environmental load coefficient information, the parts information, and the material price information, an economic evaluation value that economically evaluates the series of operations for a logistics scenario that defines the operations and deliveries that will be carried out by the recycling business base from collecting used products generated at the usage base to recycling is calculated, along with a first environmental evaluation value that evaluates the load that the series of operations has on the environment and a second environmental evaluation value that evaluates the reduction in resources in the production of future products obtained by the series of operations.An overall evaluation value that comprehensively evaluates the logistics scenario is calculated based on the economic evaluation value, the first environmental evaluation value, and the second environmental evaluation value. [Effects of the Invention]

[0010] According to one aspect of the present disclosure, it is possible to evaluate the logistics plan of a recycling project taking into account the value that can be obtained through reuse. [Brief explanation of the drawings]

[0011] [Figure 1] FIG. 1 is a block diagram illustrating an example of a logistics planning system. [Figure 2] FIG. 2 is a block diagram illustrating an example of a management server. [Figure 3] FIG. 2 is a block diagram illustrating an example of a hardware configuration of an information processing device. [Figure 4] 10 is a flowchart of an example of a logistics planning process. [Figure 5] FIG. 10 is a diagram illustrating an example of product information. [Figure 6]FIG. 10 is a diagram illustrating an example of part information. [Figure 7] FIG. 10 is a diagram illustrating an example of use base information. [Figure 8] FIG. 10 is a diagram illustrating an example of reuse business base information. [Figure 9] FIG. 10 is a diagram illustrating an example of environmental load coefficient information. [Figure 10] FIG. 10 is a diagram showing an example of material price information. [Figure 11] FIG. 10 is a diagram illustrating an example of parameter information. [Figure 12] FIG. 10 is a diagram for explaining an example of estimating the monthly collectible amount. [Figure 13] FIG. 10 is a diagram illustrating an example of a base operation setting screen. [Figure 14] FIG. 1 is a conceptual diagram comparing a basic logistics scenario and a candidate logistics scenario. [Figure 15] FIG. 10 is a diagram showing an example of an evaluation result display screen. DETAILED DESCRIPTION OF THE INVENTION

[0012] Hereinafter, an embodiment of the present invention will be described with reference to the drawings.

[0013] FIG. 1 is a block diagram showing an example of a logistics planning system.

[0014] The distribution planning system 100 is a system for creating a distribution plan relating to the reuse of products, and includes a management server 101 and a terminal 103 .

[0015] Although there is no particular limitation on the products to be recycled, an example is an industrial robot. Used products are generated at usage bases such as factories where industrial robots are used. The products are recycled through multiple recycling bases that share various recycling-related tasks. Recycling-related tasks include collection work to collect used products from usage bases, dismantling work to dismantle products and extract parts, recycling work to disassemble parts and extract materials, and remanufacturing work to regenerate products using parts extracted from used products. To carry out a series of tasks to reuse products, it is also necessary to transport used products and parts between bases.

[0016] The management server 101 is an information processing device that executes processing to support the creation of a logistics plan. The management server 101 may be an on-premise computer or a virtual computer built on the cloud. The management server 101 will be described in detail later.

[0017] The terminal 103 can be connected to the management server 101 via the communication network 102, and enables the management server 101 to be used in response to operations by a user 104. The terminal 103 is not particularly limited, but may be configured, for example, as a personal computer or a tablet terminal.

[0018] FIG. 2 is a block diagram illustrating an example of a management server.

[0019] The management server 101 includes a storage unit 210 and a data processing unit 220 .

[0020] The storage unit 210 stores product information 211, parts information 212, recycling business base information 213, parameter information 214, environmental load coefficient information 215, material price information 216, and use base information 217. Details of each piece of information will be described later.

[0021] Product information 211 is information about products to be recycled. Details of product information 211 will be described later. Parts information 212 is information about parts that make up a product. Details of parts information 212 will be described later. Recycling business base information 213 is information about recycling business bases. Details of recycling business base information 213 will be described later. Parameter information 214 is information about various parameters used to evaluate the work and delivery of product recycling. Details of parameter information 214 will be described later. Environmental load coefficient information 215 is information about coefficients used to calculate the environmental load of delivery and work related to product recycling. Details of environmental load coefficient information 215 will be described later. Material price information 216 is information about the prices of materials that make up parts removed from products. Details of material price information 216 will be described later. Usage base information 217 is information about usage bases. Details of usage base information 217 will be described later.

[0022] The data processing unit 220 includes an input receiving unit 221 , an external information acquisition unit 222 , a recoverable amount estimation unit 223 , an evaluation unit 224 , and a display unit 225 .

[0023] The input receiving unit 221 receives information input by the user 104 from the terminal 103. The user 104 may input information directly to the management server 101, or may input information from the terminal 103. The input information may include one or more of the above-mentioned product information 211, parts information 212, recycling business base information 213, parameter information 214, environmental load coefficient information 215, material price information 216, and use base information 217. The input information may also include operation input information for evaluating a logistics scenario based on a series of operations. The logistics scenario defines the operations performed by a recycling business base, from the collection of used products generated at a use base to their recycling, and the flow of delivered goods.

[0024] The external information acquisition unit 222 accesses an information system of an external organization (not shown) to acquire various types of information. The information acquired from the information system of the external organization may include the above-mentioned parameter information 214, environmental load coefficient information 215, material price information 216, etc. The external information acquisition unit 222 may also access other information systems within the company (not shown) to acquire various types of information. The information acquired from the internal information system of the company may include the above-mentioned product information 211, part information 212, etc.

[0025] The collectability amount estimation unit 223 estimates, for each use base, the amount of used products that can potentially be collected from that use base in a month (hereinafter also referred to as the monthly collectability amount.) In other words, the monthly collectability amount is an estimate of the number of used products generated per month at each use base.

[0026] The evaluation unit 224 comprehensively evaluates the current logistics scenario (hereinafter also referred to as the basic logistics scenario) and a logistics scenario (hereinafter also referred to as the candidate logistics scenario) in which a recycling business base is added, changed, or deleted from the basic logistics scenario, in terms of economic evaluation, evaluation of the burden on the environment, and evaluation of resource reduction in future product manufacturing.

[0027] The display unit 225 generates a screen that enables operations for evaluating the logistics plan and a screen that presents the evaluation results of the logistics plan, and displays them to the user 104 via the screen of the management server 101 or the screen of the terminal 103.

[0028] 3 is a block diagram showing an example of the hardware configuration of an information processing device. As described above, the management server 101 is configured as an information processing device, for example. FIG. 3 shows an example of the configuration of the information processing device that configures the management server 101.

[0029] The information processing device 300 includes a processor 301 , a main memory device 302 , an auxiliary memory device 303 , an input device 304 , an output device 305 , and a communication device 306 .

[0030] The processor 301 executes software programs and is composed of a CPU (Central Processing Unit), a GPU (Graphics Processing Unit), etc. The primary storage device 302 is a main memory such as a RAM (Random Access Memory) and stores intermediate data used by the processor 301 to execute calculations and perform data processing. The secondary storage device 303 is a storage memory such as an HDD (Hard Disk Drive) or SSD (Solid State Drive) and stores programs, data, etc. used by the processor 301 to execute various control processes and functions.

[0031] The input device 304 is, for example, an input device such as a keyboard or a mouse, and enables a user to perform input operations and the like on the information processing device 300. The output device 305 is, for example, a liquid crystal display (LCD) or the like, and displays a screen based on instructions from the processor 301. The communication device 306 is a communication interface that enables the information processing device 300 to communicate with other devices via the communication network 102, and various communication protocols such as TCP / IP (Transmission Control Protocol / Internet Protocol) can be adopted for communication.

[0032] Figure 4 is a flowchart of an example of a logistics planning process. The logistics planning process supports the creation of a logistics plan related to a series of operations for reusing used products. Various types of information are used in the logistics planning process.

[0033] Fig. 5 is a diagram showing an example of product information. Referring to Fig. 5, product information 211 includes, for each product to be recycled, the product ID, product name, non-recyclability rate at time of collection, component part information, and useful life.

[0034] The product ID is identification information that enables the product to be identified. The product name is the name of the product. The non-recyclable rate at collection indicates the percentage of collected products that are determined to be non-recyclable at that stage. The non-recyclable rate at collection for each product is estimated based on past performance and design values. The component parts information is information that indicates the parts that make up the product and their quantities. Note that, although an example is shown here in which component parts information is included in product information 211, the component parts information may also be managed separately from product information 211 as BOM (Bill of Materials) information (not shown).

[0035] The useful life is the standard number of years from when the product begins to be used until it needs to be replaced with a new product. For example, a product with product ID "R0123" has the product name "Robot ABC" and a non-recyclability rate at time of collection of "0.2", or 20%. The components of this product include one part with part ID "P001" and one part with part ID "P002". The useful life of this product is "5 years".

[0036] Fig. 6 is a diagram showing an example of part information. Referring to Fig. 6, part information 212 includes registered part ID, part name, recycling type, part weight, recyclability rate, service life, main constituent materials, recycled product price, and manufacturing cost.

[0037] The part ID is identification information that enables the part to be identified. The part name is the name of the part. The recycling target type is information that indicates whether the part is a target for recycling. The part weight is the weight of the part.

[0038] The recyclability rate is information that indicates the percentage of parts removed from used products that can be regenerated and reused. The recyclability rate of each part is estimated based on past performance and design values.

[0039] The service life is the standard number of years from when the part begins to be used until it becomes necessary to replace it with a new part. The main constituent materials are information that indicates the main materials that make up the part and their proportions.

[0040] A major material refers to a material that is contained in an amount that can be extracted from the part and sold. Multiplying the weight of a particular material by the weight of the part will roughly calculate the weight of that material that can be extracted from the part. Note that, although an example is shown here in which information on the main constituent materials is included in the part information 212, information on the main constituent materials may be obtained as BOM information from another system rather than being registered in advance in the part information 212.

[0041] The recycled product price is the price at which the recycled product is sold. The manufacturing cost is the cost required to manufacture the part.

[0042] For example, a part with part ID "P001" and part name "manipulator" is eligible for recycling, weighs 50 kilograms, has a reusable recycling rate of "0.8" (80%), and has a useful life of "15 years." The main materials that make up the part are "iron" (50%), "aluminum" (45%), and "reinforced resin" (5%). The recycled price of the part is 60,000 yen, and the manufacturing cost is 300,000 yen.

[0043] FIG. 7 is a diagram showing an example of usage base information. Referring to FIG. 7, the usage base information 217 registers, for each usage base where used products are generated, the usage base ID, base location, collection target, actual monthly collection quantity, and possible monthly collection amount. The usage base ID is identification information that enables the usage base to be identified. The base location is information about the location of the usage base. The base location is expressed, for example, as the address or latitude and longitude of the center point of a regional mesh (area) that divides a region into a grid.

[0044] The collection type is information indicating whether the usage base is in an area where used products are collected. The actual monthly collection number is the average or median of the actual number of units collected per month when used products have been collected. The average or median may be taken over a specified period, such as the most recent year or the most recent three years. The monthly collectable amount is the number of used products that can potentially be collected per month, i.e., an estimate of the number of used products generated per month.

[0045] For example, a usage base with usage base ID "U001" is located in "Musashino City, Tokyo...", which is within the collection area. Three used products are collected per month, and the estimated number of used products generated per month is seven. If the collection side is able to accept them, it can be expected that approximately four more used products can be collected per month from that usage base.

[0046] FIG. 8 is a diagram illustrating an example of reuse business base information.

[0047] Referring to Figure 8, the recycling business location information 213 stores the location ID, location name, location, location type, monthly acceptable amount, parts that can be extracted, recycling rate by material, storage cost, dismantling work cost, and recycling work cost for each location that performs recycling-related work.

[0048] The base ID is identification information that enables the recycling business base to be identified. The base name is the name of the recycling business base. The location is information about the location of the recycling business base. The location is expressed as an address or latitude and longitude. The base type is information that classifies the type of business according to the main business performed at the recycling business base. The monthly acceptance volume is information that indicates the amount of used products that can be accepted at the recycling business base in a month. The removable parts are information that indicates the parts that can be removed from used products at the recycling business base. The removable parts are determined by the equipment installed at the recycling business base and the skills of the workers who belong to the recycling business base.

[0049] The material-specific recycling rate is information that indicates the ratio of the amount of material obtained by recycling to the amount of material before processing, such as dismantling, for each material at the recycling business center. Parts and products that are not subject to regeneration at each recycling business center will be recycled for their materials. The material-specific recycling rate indicates the ratio of the amount of material obtained by recycling to the amount of material before processing, if recycling is performed. The material-specific recycling rate at the recycling business center may be set based on the capacity of the recycler contracted by the recycling business center. The value of the material-specific recycling rate may be set, for example, for each material.

[0050] The storage cost is information that indicates the cost incurred per day to store one used product at the recycling facility. If more used products are brought to the recycling facility than the facility can accept, the used products will be stored at the recycling facility. The storage cost indicates the cost incurred per day to store one used product in that case.

[0051] The dismantling work unit cost is information indicating the cost incurred per kilogram for the work of dismantling used products at the recycling business center. A dismantling work unit cost is set for recycling business centers that are capable of dismantling work. The recycling work unit cost is information indicating the cost incurred per kilogram for the work of recycling parts at the recycling business center. A recycling work unit cost is set for recycling business centers that are capable of recycling work.

[0052] For example, a recycling business center with the base ID "S001" and base name "Collection Center 1" is located in "Kanagawa Prefecture..." and has a base type of "Collection." The base can accept 60 used products per month, the parts that can be extracted from used products are "P001," the metal recycling rate is "90%," the mixed plastic recycling rate is "30%," and the reinforced plastic recycling rate is "10%." Furthermore, storing used products at the base costs 300 yen per unit per day. Furthermore, dismantling work can be done at the base for 400 yen per kilogram.

[0053] FIG. 9 is a diagram showing an example of environmental load coefficient information. Referring to FIG. 9, environmental load coefficient information 215 registers an ID, item name, unit, and load coefficient for each item. The ID is identification information that enables the item to be identified. The item name is the name of the item. The unit is information that indicates the unit of the environmental load coefficient of the item. The load coefficient is information that indicates the value of the environmental load coefficient of the item. For example, the values ​​shown in the LCI database IDEA provided by the Sustainable Management Promotion Organization, a general incorporated association, may be used as the environmental load coefficient values.

[0054] For example, the item with ID "C001" has the item name "CO2 emissions per unit during delivery," the unit is "g-CO2 / ton-kilometer," and the environmental load coefficient value is "390." In other words, the environmental load coefficient for CO2 emissions per unit during delivery is 390 (g-CO2 / ton-kilometer). This environmental load coefficient indicates that 390 grams of CO2 are emitted when one ton of goods is delivered one kilometer.

[0055] Fig. 10 is a diagram showing an example of material price information. Referring to Fig. 10, the material price information 216 registers the material name, unit, and expected price for each material that can be extracted from used products.

[0056] The material name is the name of the material. The unit is information that indicates the unit of the selling price of the material. The expected price is the expected selling price of the material. For example, it is expected that "iron" obtained through recycling can be sold for 45 yen per kilogram.

[0057] FIG. 11 is a diagram showing an example of parameter information. Referring to FIG. 11, the parameter information 214 registers a paraID, parameter name, unit, initial value, and set value for each parameter used in various calculations in the logistics planning process. The paraID is identification information that enables the parameter to be identified. The parameter name is the name of the parameter. The unit is the unit of the parameter. The initial value is an initial value that is set when the parameter can be updated. The set value is the set value of the parameter. When the parameter can be updated, this set value indicates the current set value. For example, a parameter with a paraID of "pr001" and a parameter name of "delivery unit price" is 600 yen per kilometer.

[0058] The values ​​of each parameter registered in the parameter information 214 are standard values. If there are values ​​set for each base based on actual measurements or design values, the values ​​for each base may be used preferentially, and if no values ​​for each base are set, the values ​​set in the parameter information 214 may be used.

[0059] Returning to FIG. 4, in step S101, the recoverable amount estimation unit 223 estimates the monthly recoverable amount of each use base station based on the following formula (1). Recoverable amount = Factory area within the area × Number of robots owned per factory area × (1 - rate of non-recoverable at time of recovery) / Product life / 12 (1)

[0060] Fig. 12 is a diagram for explaining an example of estimating the monthly recoverable amount. Fig. 12 shows a region divided into a grid. Within the region, there are areas where a usage base with usage base ID U001 exists, and areas where a usage base with usage base ID U002 exists. Assume that robots ABC are used at both usage bases.

[0061] The factory area within the area of ​​the usage base whose usage base ID is U001 is 5000 square kilometers. By referencing the parameter information 214 shown in FIG. 11, it can be seen that the number of robots owned per factory area is 0.1. By referencing the product information 211 in FIG. 5, it can be seen that the non-recyclable rate at the time of collection of robot ABC is 0.2. By referencing the product information 211 in FIG. 5, it can be seen that the product useful life of robot ABC is 5 years. Therefore, the recyclability amount at the usage base whose usage base ID is U001 is 5000 × 0.1 × (1-0.2) / 5 / 12 ≒ 7 units.

[0062] The factory area within the area of ​​the usage base whose usage base ID is U002 is 3,500 square kilometers. All other values ​​are the same as the values ​​for the usage base whose usage base ID is U001. Therefore, the recoverable amount for the usage base whose usage base ID is U001 is 3,500 x 0.1 x (1 - 0.2) / 5 / 12 ≒ 5 units.

[0063] 4, in step S102, the display unit 225 and the input receiving unit 221 receive the setting of a base operation. A base operation is the addition, change, or deletion of a recycling business base. Changes to a recycling business base may include an increase or decrease in the monthly acceptable amount, an increase or decrease in the number of parts that can be extracted, a change in the recycling rate by material, etc.

[0064] FIG. 13 is a diagram illustrating an example of a base operation setting screen. The display unit 225 displays the base operation setting screen 601 illustrated in FIG. 13, and the input receiving unit 221 receives settings input by a user operation. In the example of FIG. 13, manual input of a recycling business base is selected, and a collection base with a base name of "Collection Center 5," a location of "Gunma Prefecture...," a monthly acceptable amount of "100 units," and a removable part number of "P001" is manually input as the recycling business base to be added. In this state, when the "Register / Update" button is pressed, the base operation settings are confirmed based on the selected and input information. In addition, a list of bases can be displayed in the base list area at the bottom of the screen. In the example of FIG. 13, "List Display" is selected as the display format, and the "Display" button is pressed, and the base list is displayed in list display format. Information about the base with the base name "Collection Center 5" added at the top of the screen is added to the base list.

[0065] Once the base operation settings are confirmed, the evaluation unit 224 creates one or more candidate logistics scenarios according to the confirmed base operation settings.

[0066] As an example, the creation of a candidate logistics scenario when a collection point is added to a basic logistics scenario will be described here.

[0067] The evaluation unit 224 sets collection base stations as additional base stations in accordance with the base station operation settings received by the input reception unit 221. The evaluation unit 224 then selects use base stations in ascending order of distance from the additional base station, calculates the amount of used products generated at the selected use base stations that are not collected in the basic logistics scenario but can be collected at the additional base station (hereinafter also referred to as the possible additional collectible amount), and updates the target use base stations for collecting used products (hereinafter also referred to as the target use base stations for collection) so as to include the selected use base stations until the calculated amount reaches the acceptable amount of the additional base station. Note that the distance between base stations may be determined by the straight-line distance between the locations of the base stations, or the length of the road connecting the locations of the base stations (hereinafter also referred to as the road distance). Furthermore, the evaluation unit 224 creates, as a candidate logistics scenario, a logistics scenario that specifies the operations and deliveries to be performed by the recycling operation base stations, including the recycling operation base stations and the additional base stations included in the recycling operation base station information 213, for the series of operations from collection of used products generated at all updated target use base stations to recycling.

[0068] At this time, the evaluation unit 224 first creates a first candidate logistics scenario in which used products generated at the use site to be collected are delivered to the collection site that is the closest distance from the use site to be collected. Furthermore, if there are multiple collection sites within a predetermined distance from the use site to be collected, the evaluation unit 224 further creates a second candidate logistics scenario in which used products generated at the use site to be collected are delivered to each of the multiple collection sites.

[0069] Furthermore, if the collection center in the created first or second candidate logistics scenario has the shortest total distance between the distance from the use base to be collected to the collection center to which used products generated at the use base to be collected and the distance from that collection center to the center to which used products from that collection center are delivered, and the total distance is shortest, the evaluation unit 224 further creates a third candidate logistics scenario so that used products generated at the use base to be collected are delivered to the collection center with the shortest total distance.

[0070] Figure 14 is a conceptual diagram comparing the basic logistics scenario and the candidate logistics scenario. Referring to Figure 14, in the candidate logistics scenario 702, a new collection base has been added to the basic logistics scenario 701. With the addition of the new additional base, the collection base that was not a use base to be collected in the basic logistics scenario has become a new use base to be collected in the candidate logistics scenario 702. It is now possible to collect 70 used products generated at this new use base to be collected.

[0071] Returning to Figure 4, in step S103, the evaluation unit 224 selects one logistics scenario from the basic logistics scenario and the candidate logistics scenarios created in step S102. Furthermore, in step S104, the evaluation unit 224 updates the logistics scenario to be evaluated to the logistics scenario selected in step S103. Furthermore, in step S105, the evaluation unit 224 calculates an evaluation value for the logistics scenario to be evaluated.

[0072] The method for calculating the evaluation value of a logistics scenario will be described below.

[0073] First, the evaluation unit 224 calculates, for the logistics scenario to be evaluated, an economic evaluation value that economically evaluates the series of operations, a first environmental evaluation value that evaluates the environmental impact of the series of operations, and a second environmental evaluation value that evaluates the resource reduction in the production of future products obtained by the series of operations, based on the usage base information 217, the recycling operation base information 213, the environmental load coefficient information 215, the parts information 212, and the material price information 216. Then, the evaluation unit 224 calculates a comprehensive evaluation value that comprehensively evaluates the logistics scenario based on the economic evaluation value, the first environmental evaluation value, and the second environmental evaluation value. This comprehensively evaluates the series of operations in the logistics plan in terms of the economic evaluation, the environmental impact, and the resource reduction in the production of future products, making it possible to optimize the logistics plan for the recycling business by taking into account the value obtained through recycling.

[0074] Next, methods for calculating the economic evaluation value, the first environmental evaluation value, the second environmental evaluation value, and the comprehensive evaluation value will be described.

[0075] First, the method for calculating the economic evaluation value will be described.

[0076] The economic evaluation value is calculated by subtracting the recycling cost from the recycling revenue, as shown in the following formula (2). Recycling revenue is the total amount of revenue obtained by recycling used products. Recycling cost is the total amount of costs required to reuse used products. Economic evaluation value = Reuse profit - Reuse cost (2)

[0077] Reuse profit is the sum of the profit from selling materials and the value of recycled parts, as shown in formula (3) below. Reuse profit = profit from selling materials + value of recycled parts (3)

[0078] The profit from selling materials is the profit earned from selling materials obtained by recycling used products, and is calculated using the following formula (4). Profit from selling materials = Weight of materials sold × Expected price (4)

[0079] The value of remanufactured parts is the value of parts remanufactured from used products. As shown in formula (5) below, the value of remanufactured parts differs depending on whether they are used in-house or sold to another company. The selling price of remanufactured parts may differ depending on the purpose of use, such as whether they are sold as replacement maintenance parts or as remanufactured parts. Remanufactured part value = Remanufactured part sales price × (1 – remanufactured part in-house utilization rate) + new part manufacturing cost × remanufactured part in-house utilization rate (5)

[0080] The recycling cost is the sum of the delivery cost, the operation cost, and the storage cost, as shown in the following formula (6). Recycling cost = Shipping cost + Labor cost + Storage cost (6)

[0081] The delivery cost is calculated by the following formula (7): The distance between bases may be the straight-line distance between locations or the road distance. Delivery cost = distance between bases × delivery cost × delivery volume coefficient (7)

[0082] The work cost is the sum of the dismantling work cost and the recycling work cost, as shown in the following formula (8). Labor cost = Dismantling labor cost + Remanufacturing labor cost (8)

[0083] The dismantling work cost is calculated using the following formula (9). Dismantling cost = received product weight × dismantling cost (9)

[0084] The regeneration work cost is calculated using the following formula (10). Remanufacturing cost = weight of parts removed × unit cost of remanufacturing (10)

[0085] The storage cost is calculated using the following formula (11). Storage cost = storage capacity × storage cost × storage period (11)

[0086] Next, a method for calculating the first environmental evaluation value will be described.

[0087] The first environmental assessment value is an index that evaluates the environmental burden of the series of operations related to the recycling of used products, and is, for example, the amount of greenhouse gas (GHG) emissions or CO2 emissions. The first environmental assessment value is the sum of the amount of emissions during delivery, the amount of emissions during processing, and the future reduction effect, as shown in the following formula (12). Total CO2 emissions = Emissions during delivery + Emissions during processing + Future reduction effects (12)

[0088] The amount of emissions during delivery can be calculated using equation (13). Alternatively, the loading rate of goods on the delivery vehicle may also be taken into consideration. The delivery distance may be the straight-line distance between base stations or the road distance. Emissions during delivery = Delivery distance × Delivery weight × CO2 emissions per unit of delivery (13)

[0089] The amount of CO2 emissions during processing is the amount of CO2 emissions that occurs during the course of business operations, and is calculated using the following formula (14). Emissions during processing = Emissions during dismantling processing + Emissions during recycling processing (14)

[0090] The amount of waste discharged during dismantling is calculated using the following formula (15). Emissions during dismantling processing = Accepted product weight × Processing unit (15)

[0091] The amount of waste discharged during recycling is calculated using the following formula (16). Emissions during recycling = weight of sampled parts × processing unit (16)

[0092] The future reduction effect is the sum of the CO2 emissions reduced by using recycled parts and the CO2 emissions reduced by using recycled materials. The CO2 emissions reduced by using recycled parts are equal to the CO2 emissions expected to occur when new parts are manufactured in the future. The CO2 emissions reduced by using recycled materials are equal to the CO2 emissions expected to occur when new materials are produced in the future.

[0093] Next, a method for calculating the second environmental evaluation value will be described.

[0094] The second environmental evaluation value is an evaluation index that evaluates the reduction in resources in future product manufacturing obtained through a series of operations related to the reuse of used products. The second environmental evaluation value is the sum of the amount of waste generated during delivery, the amount of waste generated during processing, and the future reduction effect, as shown in the following formula (17). Second environmental evaluation value = (α × recycled amount + β × recycled amount) / collected product weight + γ × weight of recycled parts in next product / total weight of next product (17)

[0095] Here, the recycled amount is the sum of the weights of the recycled parts reclaimed from collected used products, i.e., the sum of the products of the number of recycled parts and the weight of each recycled part. The recycled amount is the sum of the weights of materials obtained through recycling. The coefficients α and β are values ​​that set the relative value of reclaiming and recycling in resource circulation. By setting α > β, it is possible to prioritize reclaiming over recycling, that is, to prioritize the inner loop of the butterfly diagram.

[0096] The coefficient γ term is a term that evaluates resource recyclability related to resource reduction resulting from the assumption that recycled parts will be installed in products manufactured in the future. The next product total weight is the total weight of products that will be installed with recycled parts in future manufacturing. The next product recycled parts installed weight is the weight of recycled parts in products that will be installed with recycled parts in future manufacturing. When resource recyclability related to resource reduction resulting from installing recycled parts in products manufactured in the future is included in the second environmental assessment value, coefficient γ is set to a value that depends on how much importance is placed on resource recyclability.

[0097] Next, a method for calculating the overall evaluation value will be described.

[0098] The comprehensive evaluation value is an evaluation index for comprehensively evaluating a logistics scenario, and is calculated using the following formula (18) based on the economic evaluation value, the first environmental evaluation value, and the second environmental evaluation value. Overall evaluation value = a × economic evaluation value + b × first environmental evaluation value + c × second environmental evaluation value (18)

[0099] In this case, the units of the economic evaluation value, the first environmental evaluation value, and the second environmental evaluation value may be the same. For example, the units may be monetary. In that case, for example, the first environmental evaluation value (CO2 emissions) can be converted into credits (from the price of J-Credits or carbon accounting) to match the units to monetary amounts. The second environmental evaluation value (resource recycling evaluation value) can also be converted into monetary amounts in the same way.

[0100] The coefficients a, b, and c are weighted according to the importance of the economic evaluation value, the first environmental evaluation value, and the second environmental evaluation value. Since the first environmental evaluation value is an index where a smaller value is better (a decreasing index), the coefficient b is set to a negative value.

[0101] Returning to Figure 4, in step S106, the evaluation unit 224 determines whether or not evaluation values ​​have been calculated for all candidate logistics scenarios. If there are any candidate logistics scenarios for which evaluation values ​​have not been calculated, the process returns to step S103. If calculation of evaluation values ​​has been completed for all candidate logistics scenarios, the evaluation unit 224 selects the candidate logistics scenario with the highest overall evaluation value in step S107. Then, in step S107, the display unit 225 displays a screen showing the evaluation results.

[0102] FIG. 15 is a diagram showing an example of an evaluation result display screen. Referring to FIG. 15, the evaluation result display screen 602 displays a list of evaluation results including the economic evaluation value, first environmental evaluation value, second environmental evaluation value, and overall evaluation value for each of the following: the current logistics scenario (basic logistics scenario), candidate logistics scenario #1 in which location A is added to the current situation, candidate logistics scenario #2 in which the collection location allocation is changed from the current situation, and candidate logistics scenario #3 in which location B is added to the current situation. The benefits of adding a location can be easily evaluated by comparing with the current logistics scenario. In the example of FIG. 15, candidate logistics scenario #1 has the highest overall evaluation value. The evaluation result display screen displays the current logistics scenario (basic logistics scenario) and candidate logistics scenario #1 so that they can be compared.

[0103] In this embodiment, the comprehensive evaluation value is calculated by the above formula (18), but the present invention is not limited to this. As another example, the comprehensive evaluation value may be calculated by the following formula (19). According to formula (19), the comprehensive evaluation value can be calculated even if the economic evaluation value, the first environmental evaluation value, and the second environmental evaluation value are not all in the same unit.

[0104] Overall evaluation value = Economic evaluation value × Second environmental evaluation value / First environmental evaluation value (19)

[0105] Furthermore, in this embodiment, the estimated monthly collectability amount is fixed to calculate the overall evaluation value, but this is not limited to this. As another example, the overall evaluation value may be calculated taking into account possible fluctuations in the amount of used products that can be collected per month. For example, an overall evaluation value (first overall evaluation value) for the estimated collectability amount, an overall evaluation value (second overall evaluation value) when a predetermined value is added to the estimated collectability amount, and an overall evaluation value (third overall evaluation value) when a predetermined value is subtracted from the estimated collectability amount may be calculated, and the weighted sum of the first overall evaluation value, the second overall evaluation value, and the third overall evaluation value may be used as the overall evaluation value. A logistics scenario can be evaluated taking into account fluctuations in the amount of used products generated at the use site.

[0106] Furthermore, in this embodiment, an example was shown in which the overall evaluation value of all candidate logistics scenarios was calculated and the candidate logistics scenario with the highest overall evaluation value was selected, but other methods are also possible. For example, if it is considered necessary to select a candidate logistics system that ensures a certain level of economic efficiency, then among multiple candidate logistics scenarios, those with economic evaluation values ​​above a predetermined lower limit may be targeted, and the candidate logistics scenario with the best overall evaluation value among those may be selected. A candidate logistics scenario with a certain level of economic efficiency or above can be selected while taking environmental evaluation into consideration.

[0107] In addition, in this embodiment, an example has been shown in which the overall evaluation value of all candidate logistics scenarios is calculated and the candidate logistics scenario with the highest overall evaluation value is selected, but other methods are also possible. For example, the optimal candidate logistics scenario may be determined using a multi-objective optimization method such as multi-stage optimization or weighted optimization.

[0108] The above-described embodiments are merely illustrative examples of the present invention, and are not intended to limit the scope of the present invention to these embodiments alone. Those skilled in the art can implement the present invention in various other forms without departing from the scope of the present invention.

[0109] The above-described embodiment includes the following features. However, the features included in the above-described embodiment are not limited to the following features.

[0110] (Item 1) A logistics planning system for creating a logistics plan for product reuse, the system comprising: a memory; and a processor; The memory includes: Use site information, which is information about use sites where used products are generated; Reuse business base information, which is information about the reuse business base that carries out business related to reuse; Information on the environmental impact coefficient of delivery or operations related to the reuse of the used products; Part information, which is information about parts that constitute the product; material price information for materials constituting the part; Store The processor: calculating an economic evaluation value that economically evaluates a series of operations, a first environmental evaluation value that evaluates the load on the environment of the series of operations, and a second environmental evaluation value that evaluates the reduction in resources in the manufacture of future products obtained by the series of operations, for a logistics scenario that defines operations and deliveries to be performed by the recycling operations base from collection of used products generated at the usage base based on the use base information, the recycling operations base information, the environmental load coefficient information, the parts information, and the material price information; A comprehensive evaluation value that comprehensively evaluates the logistics scenario is calculated based on the economic evaluation value, the first environmental evaluation value, and the second environmental evaluation value. This allows for a comprehensive evaluation of the series of operations in a logistics plan, including economic evaluation, environmental impact, and resource reduction in future product manufacturing, making it possible to evaluate the logistics plan of a recycling business while taking into account the value that can be obtained through reuse.

[0111] (Item 2) In the logistics planning system according to item 1, The use base information records, for the use base, the location of the use base and a collectable amount, which is the amount of used products generated from the use base in a predetermined unit period, The recycling business base information includes, for the recycling business base, the address of the recycling business base and a business unit price, which is a unit price for the business at the recycling business base, The environmental load coefficient information records an environmental load coefficient, which is a proportional constant between the delivery or work related to the recycling of the used product and the load that the delivery or work has on the environment, The part information records, for the part, a recyclability rate indicating the ratio of parts that can be used among parts extracted from used products, a recycled product price which is the price of the part that has been recycled from the part extracted from the used product, and materials that constitute the part and the amount of material used; The material price information records a material price, which is a selling price for a predetermined amount of the material, The processor: calculating the costs incurred in delivery and operations in the series of operations based on the recoverable amount, the location, and the operation unit price; calculating the parts profit obtained from the parts recovered from the parts extracted from the used products in the series of operations based on the recoverable amount, the recyclability rate, and the recycled product price; calculating the material profit obtained from the materials obtained by recycling the used products in the series of operations based on the recoverable amount, the recyclability rate, the materials constituting the parts, the amount used, and the material price; and calculating the economic evaluation value based on the parts profit, the material profit, and the costs; calculating the first environmental evaluation value based on the recoverable amount, the location, the recyclability rate, and the environmental load coefficient; calculating the second environmental evaluation value, which evaluates the reduction in resources in the manufacture of future products by utilizing the parts and / or materials obtained through the series of operations, based on the recoverable amount, the recyclability rate, and the materials constituting the parts and their amounts used; The comprehensive evaluation value is calculated based on the economic evaluation value, the first environmental evaluation value, and the second environmental evaluation value.

[0112] (Item 3) In the logistics planning system according to item 2, The processor: A predetermined logistics scenario is set as a basic logistics scenario, and a reused business base is added, changed, or deleted from the basic logistics scenario. In the configuration to which the addition, change, or deletion has been made, one or more candidate logistics scenarios are created for carrying out a series of operations from collecting used products generated at the use bases included in the use base information to recycling them; For the candidate logistics scenario, an economic evaluation value, a first environmental evaluation value, a second environmental evaluation value, and a comprehensive evaluation value are calculated. This makes it possible to evaluate the logistics plan of a regeneration project by considering the value that can be gained through reuse, considering logistics scenarios in which bases are added, changed, or deleted.

[0113] (Item 4) In the logistics planning system according to item 3, The recycling business base information further records, for the recycling business base, an acceptable amount, which is the number of used products that can be accepted at the recycling business base in the unit period, The processor: A collection site is set as an additional site to carry out the operation of collecting used products from the use site, Selecting use bases in order of shortest distance from the additional base, accumulating an additional collectable amount, which is the amount of used products generated from the selected use bases and not collected in the basic logistics scenario that can be collected at the additional base, and updating the collection target use bases, which are use bases that are targets for collecting used products, so as to include the selected use bases until the calculated accumulated value reaches the acceptable amount of the additional base; A candidate logistics scenario is created in which a series of operations from collecting used products generated at the collection target use bases to recycling will be carried out by recycling business bases including the recycling business bases included in the recycling business base information and the additional bases. This makes it possible to evaluate the logistics plan of a recycling business by considering the value that can be obtained through reuse, in terms of logistics scenarios in which collection points are added.

[0114] (Item 5) In the logistics planning system according to item 4, The processor: creating a candidate logistics scenario for delivering used products generated from the collection target use site to a collection site that is the shortest distance from the collection target use site; If there are a plurality of collection bases within a predetermined distance from the collection target use base, a candidate logistics scenario is further created for delivering used products generated from the collection target use base to each of the plurality of collection bases; If the collection base among the created candidate logistics scenarios has the shortest total distance between the distance from the use base to be collected to the collection base to which used products generated at the use base to be collected and the distance from the collection base to the base to which used products from the collection base are delivered, and the distance is different from the collection base in the candidate logistics scenario, a further candidate logistics scenario is created in which used products generated at the use base to be collected are delivered to the collection base with the shortest total distance. This makes it possible to appropriately evaluate candidate logistics scenarios that include collection points.

[0115] (Item 6) In the logistics planning system according to item 2, The processor: A first overall evaluation value is calculated for the recoverable amount, a second overall evaluation value is calculated when a predetermined value is added to the recoverable amount, and a third overall evaluation value is calculated when a predetermined value is subtracted from the recoverable amount, and the overall evaluation value is calculated as a weighted sum of the first overall evaluation value, the second overall evaluation value, and the third overall evaluation value. This allows for an appropriate evaluation of the logistics scenario, taking into consideration cases where the amount of used products generated at the usage base fluctuates.

[0116] (Item 7) In the logistics planning system according to item 3, The processor creates a plurality of candidate logistics scenarios, calculates an economic evaluation value and an overall evaluation value for each of the candidate logistics scenarios, and selects the candidate logistics scenario whose economic evaluation value is above a predetermined lower limit value and whose overall evaluation value is the best. This makes it possible to select candidate logistics scenarios that are economically viable to a certain extent while taking environmental assessment into consideration.

[0117] (Item 8) In the logistics planning system according to item 3, The processor outputs a display that allows a comparison between the base logistics scenario and the candidate logistics scenario with respect to at least one of an economic evaluation value, a first environmental evaluation value, a second environmental evaluation value, and a comprehensive evaluation value. This makes it easy to evaluate the benefits of adding a base by comparing it with the current logistics scenario.

[0118] (Item 9) In the logistics planning system according to item 2, The first environmental evaluation value is the amount of greenhouse gas emissions or carbon dioxide emissions.

[0119] (Item 10) In the logistics planning system according to item 2, The second environmental evaluation value is an index for evaluating resource recycling.

[0120] (Item 11) 11. The logistics planning system according to claim 10, The second environmental evaluation value is the sum of the weighted sum of the weight of the recycled parts and the weight of the recycled materials divided by the weight of the collected used product, and the weight of the parts in a product manufactured using the recycled parts divided by the weight of a product in which the recycled parts can be installed.

[0121] (Item 12) 12. The logistics planning system according to item 11, In calculating the weighted sum of the weight of the recycled parts and the weight of the recycled materials, the weight for the weight of the recycled parts is set to a value greater than the weight for the weight of the recycled materials.

[0122] (Item 13) In the logistics planning system according to item 2, The comprehensive evaluation value is a weighted sum of the economic evaluation value, the first environmental evaluation value, and the second environmental evaluation value.

[0123] (Item 14) A logistics planning method for creating a logistics plan related to product reuse, The computer Use site information, which is information about use sites where used products are generated; Reuse business base information, which is information about the reuse business base that carries out business related to reuse; Information on the environmental impact coefficient of delivery or operations related to the reuse of the used products; Part information, which is information about parts that constitute the product; material price information for materials constituting the part; Store calculating an economic evaluation value that economically evaluates a series of operations, a first environmental evaluation value that evaluates the load on the environment of the series of operations, and a second environmental evaluation value that evaluates the reduction in resources in the manufacture of future products obtained by the series of operations, for a logistics scenario that defines operations and deliveries to be performed by the recycling operations base from collection of used products generated at the usage base based on the use base information, the recycling operations base information, the environmental load coefficient information, the parts information, and the material price information; A comprehensive evaluation value that comprehensively evaluates the logistics scenario is calculated based on the economic evaluation value, the first environmental evaluation value, and the second environmental evaluation value. [Explanation of symbols]

[0124] 100...Logistics planning system, 101...Management server, 102...Communication network, 103...Terminal, 104...User, 210...Memory unit, 211...Product information, 212...Parts information, 213...Recycling business base information, 214...Parameter information, 215...Environmental load coefficient information, 216...Material price information, 217...Use base information, 220...Data processing unit, 221...Input reception unit, 222...External information acquisition unit, 223...Recoverability amount estimation unit, 224...Evaluation unit, 225...Display unit, 300...Information processing device, 301...Processor, 302...Main memory device, 303...Auxiliary memory device, 304...Input device, 305...Output device, 306...Communication device, 601...Base operation setting screen, 602...Evaluation result display screen, 701...Basic logistics scenario, 702...Candidate logistics scenario

Claims

1. A logistics planning system for creating a logistics plan related to product reuse, Memory and a processor; The memory includes: Use site information, which is information about use sites where used products are generated; Reuse business base information, which is information about the reuse business base that carries out business related to reuse; Information on the environmental impact coefficient of delivery or operations related to the reuse of the used products; Part information, which is information about parts that constitute the product; material price information for materials constituting the part; Store The processor: Based on the use base information, the recycling business base information, the environmental load coefficient information, the parts information, and the material price information, calculate an economic evaluation value that economically evaluates a series of operations from collection of used products generated at the use base to recycling, for a logistics scenario that defines operations and deliveries to be performed by the recycling business base, an economic evaluation value that economically evaluates the series of operations, a first environmental evaluation value that evaluates the load that the series of operations imparts to the environment, and a second environmental evaluation value that evaluates the reduction in resources in the production of future products obtained by the series of operations; calculating a comprehensive evaluation value that comprehensively evaluates the logistics scenario based on the economic evaluation value, the first environmental evaluation value, and the second environmental evaluation value; Logistics planning system.

2. The use base information records, for the use base, the location of the use base and a collectable amount, which is the amount of used products generated from the use base in a predetermined unit period, The recycling business base information includes, for the recycling business base, the address of the recycling business base and a business unit price, which is a unit price for the business at the recycling business base, The environmental load coefficient information records an environmental load coefficient, which is a proportional constant between the delivery or work related to the recycling of the used product and the load that the delivery or work has on the environment, The part information records, for the part, a recyclability rate indicating the ratio of parts that can be used among parts extracted from used products, a recycled product price which is the price of the part that has been recycled from the part extracted from the used product, and materials that constitute the part and the amount of material used; The material price information records a material price, which is a selling price for a predetermined amount of the material, The processor: calculating the costs incurred in delivery and operations in the series of operations based on the recoverable amount, the location, and the operation unit price; calculating the parts profit obtained from the parts recovered from the parts extracted from the used products in the series of operations based on the recoverable amount, the recyclability rate, and the recycled product price; calculating the material profit obtained from the materials obtained by recycling the used products in the series of operations based on the recoverable amount, the recyclability rate, the materials constituting the parts, the amount used, and the material price; and calculating the economic evaluation value based on the parts profit, the material profit, and the costs; calculating the first environmental evaluation value based on the recoverable amount, the location, the recyclability rate, and the environmental load coefficient; calculating the second environmental evaluation value, which evaluates the reduction in resources in the manufacture of future products by utilizing the parts and / or materials obtained in the series of operations, based on the recoverable amount, the recyclability rate, and the materials constituting the parts and their amounts used; calculating the comprehensive evaluation value based on the economic evaluation value, the first environmental evaluation value, and the second environmental evaluation value; The logistics planning system according to claim 1 .

3. The processor: A predetermined logistics scenario is set as a basic logistics scenario, and a reused business base is added, changed, or deleted from the basic logistics scenario. In the configuration to which the addition, change, or deletion has been made, one or more candidate logistics scenarios are created for carrying out a series of operations from collecting used products generated at the use bases included in the use base information to recycling them; calculating an economic evaluation value, a first environmental evaluation value, a second environmental evaluation value, and a comprehensive evaluation value for the candidate logistics scenario; The logistics planning system according to claim 2 .

4. The recycling business base information further records, for the recycling business base, an acceptable amount, which is the number of used products that can be accepted at the recycling business base in the unit period, The processor: A collection site is set as an additional site to carry out the operation of collecting used products from the use site, Selecting use bases in order of shortest distance from the additional base, accumulating an additional collectable amount, which is the amount of used products generated from the selected use bases and not collected in the basic logistics scenario that can be collected at the additional base, and updating the collection target use bases, which are use bases that are targets for collecting used products, so as to include the selected use bases until the calculated accumulated value reaches the acceptable amount of the additional base; A candidate logistics scenario is created in which a series of operations from collection of used products generated from the collection target use bases to recycling are carried out by recycling business bases including the recycling business bases included in the recycling business base information and the additional bases. The logistics planning system according to claim 3 .

5. The processor: creating a candidate logistics scenario for delivering used products generated from the collection target use site to a collection site that is the shortest distance from the collection target use site; If there are a plurality of collection bases within a predetermined distance from the collection target use base, a candidate logistics scenario is further created for delivering used products generated from the collection target use base to each of the plurality of collection bases; If the collection center in the created candidate logistics scenario has the shortest total distance between the distance from the target use site to the collection center to which used products generated at the target use site are delivered and the distance from the collection center to the center to which used products from the collection center are delivered, and the collection center is different from the collection center in the candidate logistics scenario, then a candidate logistics scenario is further created in which used products generated at the target use site are delivered to the collection center with the shortest total distance. The logistics planning system according to claim 4.

6. The processor: A first comprehensive evaluation value is calculated for the recoverable amount, a second comprehensive evaluation value is calculated by adding a predetermined value to the recoverable amount, and a third comprehensive evaluation value is calculated by subtracting a predetermined value from the recoverable amount, and the comprehensive evaluation value is calculated as a weighted sum of the first comprehensive evaluation value, the second comprehensive evaluation value, and the third comprehensive evaluation value. The logistics planning system according to claim 2 .

7. the processor creates a plurality of candidate logistics scenarios, calculates an economic evaluation value and an overall evaluation value for each of the candidate logistics scenarios, and selects the candidate logistics scenario for which the economic evaluation value is equal to or greater than a predetermined lower limit and the overall evaluation value is the best. The logistics planning system according to claim 3 .

8. the processor outputs a display that allows a comparison between the base logistics scenario and the candidate logistics scenario with respect to at least one of an economic evaluation value, a first environmental evaluation value, a second environmental evaluation value, and a comprehensive evaluation value. The logistics planning system according to claim 3 .

9. the first environmental evaluation value is greenhouse gas emissions or carbon dioxide emissions; The logistics planning system according to claim 2 .

10. The second environmental evaluation value is an index for evaluating resource circulation. The logistics planning system according to claim 2 .

11. the second environmental evaluation value is the sum of a weighted sum of the weight of the recycled parts and the weight of the recycled materials divided by the weight of the collected used product, and a weight of the parts of a product manufactured by incorporating the recycled parts divided by the weight of a product on which the recycled parts can be incorporated; The logistics planning system according to claim 10.

12. In calculating the weighted sum of the weight of the recycled parts and the weight of the recycled materials, a weight for the weight of the recycled parts is set to a value greater than a weight for the weight of the recycled materials. The logistics planning system according to claim 11.

13. the comprehensive evaluation value is a weighted sum of the economic evaluation value, the first environmental evaluation value, and the second environmental evaluation value; The logistics planning system according to claim 2 .

14. A logistics planning method for creating a logistics plan related to product reuse, The computer Use site information, which is information about use sites where used products are generated; Reuse business base information, which is information about the reuse business base that carries out business related to reuse; Information on the environmental impact coefficient of delivery or operations related to the reuse of the used products; Part information, which is information about parts that constitute the product; material price information for materials constituting the part; Store Based on the use base information, the recycling business base information, the environmental load coefficient information, the parts information, and the material price information, calculate an economic evaluation value that economically evaluates a series of operations from collection of used products generated at the use base to recycling, for a logistics scenario that defines operations and deliveries to be performed by the recycling business base, an economic evaluation value that economically evaluates the series of operations, a first environmental evaluation value that evaluates the load that the series of operations imparts to the environment, and a second environmental evaluation value that evaluates the reduction in resources in the production of future products obtained by the series of operations; calculating a comprehensive evaluation value that comprehensively evaluates the logistics scenario based on the economic evaluation value, the first environmental evaluation value, and the second environmental evaluation value; Logistics planning methods.

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