Co2 emissions calculation system, method and program thereof

Abstract

To provide a CO2 emissions calculation system, method and program thereof for calculating the amount of CO2 to be emitted even in a macro perspective in which a purchased raw material is transformed into a product and factory wastes are rotated as rotating scrap in a factory, from a viewpoint of each type of products.SOLUTION: A CO2 emissions calculation system calculates the amount of CO2 to be emitted in a factory that can produce multiple kinds of products from raw materials through multiple processes. In a macro perspective, the multiple kinds include kinds of products for which the amount of raw materials purchased is not coincident with the quantity of products, and CO2 emissions per unit quantity in an excess amount (a) that exceeds the quantity of the products in the amount of raw materials purchased is calculated as CO2 emissions per unit quantity in a compensation amount (c) of factory waste with which the deficiency of the amount of raw materials purchased is compensated.SELECTED DRAWING: Figure 2

Description

[Technical field]

[0001] The present invention relates to a carbon dioxide emission calculation system, a carbon dioxide emission calculation method, and a carbon dioxide emission calculation program for determining the amount of carbon dioxide emission related to a product when viewed macroscopically as purchased raw materials becoming products and factory waste rotating as waste within a factory. [Background technology]

[0002] 2. Description of the Related Art In recent years, from the standpoint of preserving the global environment, etc., interest has been focused on carbon dioxide emissions (CO2 emissions), and technologies relating to such carbon dioxide emissions have been researched and developed (for example, Patent Document 1). [Prior art documents] [Patent documents]

[0003] [Patent Document 1] JP 2023-087405 A Summary of the Invention [Problem to be solved by the invention]

[0004] In a factory that manufactures products, the amount of raw materials procured from outside in a certain period (amount of purchased raw materials) corresponds to the amount of products produced in the period, and scraps of the raw materials (purchased raw materials and scraps described below) generated by processing the raw materials are basically reused as part of the raw materials, so it can be considered macroscopically that "purchased raw materials become products ((amount of purchased raw materials) = (amount of product))" and scraps are rotated as scraps in the factory (if the amount that cannot be reused and is discarded or lost is ignored, (amount of scraps) = constant)". In particular, in the case of metal-based materials in which raw materials are melted to manufacture products, scraps can be reused. Although the amount of scraps is considered constant macroscopically, the scraps generated in the manufacture of a certain product are once scraps and reused in the manufacture of other products as necessary, so the scraps themselves are replaced microscopically. In such a case, the CO2 emissions of the materials from the product's perspective can be calculated as the sum of the CO2 emissions of purchased raw materials equivalent to the amount of product and the CO2 emissions of scraps equivalent to the amount of loss (equivalent to the amount of loss) caused by the implementation of the process. In addition, yield is generally the ratio of the amount of finished product to the amount of raw materials input, and yield loss is the opposite of yield, and is the ratio of the amount of loss that occurs from raw materials to the amount of product input.

[0005] On the other hand, in the case of a factory capable of manufacturing multiple types of products that are manufactured from raw materials through multiple processes, from the viewpoint of product type (product type), the blending ratio of purchased raw materials to factory scraps and the upper limit of the blending rate of factory scraps, which are stipulated for reasons such as quality, may differ for each type. In such a case, due to the constraints imposed by the blending ratio and the upper limit of the blending rate, depending on the type, factory scraps may be insufficient for the manufacture of the product, and the shortage may need to be made up for with purchased raw materials, so the amount of purchased raw materials may not match the amount of product, and the amount of purchased raw materials may be greater than the amount of product. Conversely, if a lot of factory scraps can be used, the amount of purchased raw materials may be less than the amount of product. For this reason, when calculating the amount of CO2 emissions in a factory capable of manufacturing multiple types of products that are manufactured from raw materials through multiple processes, from the viewpoint of product type (product type), it may be difficult to grasp the macroscopic idea that "purchased raw materials become products, and factory scraps rotate as scraps in the factory."

[0006] The present invention has been made in consideration of the above-mentioned circumstances, and its purpose is to provide a carbon dioxide emission calculation system, a carbon dioxide emission calculation method, and a carbon dioxide emission calculation program that can calculate carbon dioxide emissions (CO2 emissions) from the perspective of product type (product type), even when viewed macroscopically, with purchased raw materials becoming products and factory scraps rotating as scraps within the factory. [Means for solving the problem]

[0007] As a result of various investigations, the inventors of the present invention found that the above object can be achieved by the present invention described below. That is, a carbon dioxide emission calculation system according to one aspect of the present invention is a system for calculating CO2 emission in a factory capable of manufacturing a plurality of types of products that are manufactured from raw materials through a plurality of processes, and includes a unit emission calculation unit that calculates, in a predetermined period, a CO2 emission amount per unit amount of the purchased raw materials in an excess amount exceeding the product amount of the purchased raw materials when the purchased raw materials amount is greater than the product amount, and a CO2 emission amount per unit amount of the compensation amount of the purchased raw materials that compensates for the shortage of the purchased raw materials with the factory scraps when the purchased raw materials amount is less than the product amount, when the purchased raw materials amount is greater than the product amount and the product amount is greater than the product amount, the CO2 emission amount per unit amount of the purchased raw materials in an excess amount exceeding the product amount of the purchased raw materials when the purchased raw materials amount is less than the product amount, in a case where the purchased raw materials amount and the product amount match in a predetermined period, and factory scraps generated by the implementation of the processes are reused in the manufacture of the products as tumbling scraps, and the amount of the tumbling scraps is considered to be a constant amount if the amount that cannot be reused is ignored.

[0008] If the multiple types of products include a type in which the purchased raw material amount and the product amount do not match, the excess amount is temporarily turned into tumbling scrap and used as a compensation amount to manufacture the product. In such a case, for a type in which the purchased raw material amount is greater than the product amount, the above-mentioned macroscopic understanding is possible by subtracting the CO2 emission amount of the excess amount from the CO2 emission amount of the purchased raw material, and for a type in which the purchased raw material amount is less than the product amount, the above-mentioned macroscopic understanding is possible by incorporating the CO2 emission amount of the compensation amount into the CO2 emission amount of the purchased raw material. During the above-mentioned incorporation, the carbon dioxide emission calculation system obtains the CO2 emission amount per unit amount of the excess amount as the CO2 emission amount per unit amount of the compensation amount, so that it is possible to obtain the CO2 emission amount of the compensation amount, and therefore the above-mentioned macroscopic understanding can be realized even for a type in which the purchased raw material amount is less than the product amount. Therefore, the above-mentioned carbon dioxide emission calculation system can obtain the CO2 emission amount even when the above-mentioned macroscopic understanding is performed from the viewpoint of each type of product (each type of product).

[0009] In another aspect, the carbon dioxide emission calculation system described above further includes a product information storage unit that stores, for each of the plurality of types, a total purchased raw material amount, which is the total amount of purchased raw materials, a total factory waste amount, which is the total amount of factory waste, and a total product amount, which is the total amount of product, in the product of that type during the specified period as total product information associated with the type, and a unit emission information storage unit that stores, for each of the plurality of types, a CO2 emission per unit amount of purchased raw materials for the product of that type as raw material unit emission information associated with the type, and the unit emission calculation unit calculates, for a type among the plurality of types in which the purchased raw material amount is greater than the product amount, a total excess amount, which is the total amount of excess amounts in the product of that type during the specified period, based on the total product information, and stores, for a type in which the purchased raw material amount is greater than the product amount, a total excess amount, which is the total amount of excess amounts in the product of that type during the specified period, based on the total product information. the total excess amount calculation unit calculating the sum of the total excess amounts as the total excess amount; a total excess amount emission calculation unit calculating, for a type among the multiple types, for which the purchased raw material amount is greater than the product amount, a total excess amount which is the total amount of excess amounts for that type of product during the specified period based on the total product information, calculating CO2 emissions in the total excess amount calculated for that type of product based on the raw material unit emission information, and calculating, as a total excess amount CO2 emissions, the sum of CO2 emissions in the total excess amounts calculated for types for which the purchased raw material amount is greater than the product amount; and a unit consumption calculation unit calculating the CO2 emission per unit amount in the excess amount as the CO2 emission per unit amount in the compensation amount by dividing the total excess amount CO2 emission calculated by the total excess amount emission calculation unit by the total excess amount calculated by the total excess amount calculation unit.

[0010] Such a carbon dioxide emission calculation system can determine the amount of CO2 emission per unit amount in the excess amount as the amount of CO2 emission per unit amount in the compensation amount by a more specific calculation method.

[0011] In another aspect, the above-mentioned carbon dioxide emission calculation system further includes a product information storage unit that stores, for each of the plurality of types, a total purchased raw material amount, which is the total amount of purchased raw materials, a total factory waste amount, which is the total amount of factory waste, and a total product amount, which is the total amount of product, for the product of that type during the specified period as total product information associated with the type, and a compensation amount emission calculation unit that calculates, for a type among the plurality of types in which the purchased raw material amount is less than the product amount, a total compensation amount, which is the total amount of compensation for the product of that type during the specified period, based on the total product information, and calculates the CO2 emission in the calculated total compensation amount by multiplying the calculated total compensation amount by the CO2 emission per unit amount in the compensation amount calculated by the unit emission calculation unit.

[0012] Such a carbon dioxide emission calculation system can calculate the amount of CO2 emission in the total compensation amount for a specified period for a type among a plurality of types in which the purchased amount of raw materials is less than the product amount.

[0013] In another aspect, the above-mentioned carbon dioxide emission calculation system further includes a total compensation amount emission calculation unit that calculates, for a type among the multiple types, for which the purchased raw material amount is less than the product amount, a total compensation amount that is a total amount of compensation for that type of product during the specified period based on the total product information, calculates the CO2 emission amount in the calculated total compensation amount by multiplying the calculated total compensation amount by the CO2 emission amount per unit amount in the compensation amount calculated by the unit emission amount calculation unit, and calculates the sum of the CO2 emissions in the total compensation amount calculated for types for which the purchased raw material amount is less than the product amount as a total compensation amount CO2 emission amount, and an allocation processing unit that calculates an unallocated CO2 emission amount by subtracting the total compensation amount CO2 emission amount calculated by the total compensation amount emission calculation unit from the total excess CO2 emission amount calculated by the total excess CO2 emission amount calculation unit, and allocates the calculated unallocated CO2 emission amount to each of the multiple types. Preferably, in the above-mentioned carbon dioxide emission calculation system, the allocation processing unit allocates the calculated unallocated CO2 emission to each of the multiple types in a ratio of each product volume (ratio of each total product volume) for each of the multiple types. Preferably, in the above-mentioned carbon dioxide emission calculation system, the allocation processing unit allocates the calculated unallocated CO2 emission to each of the multiple types in a ratio of each purchased raw material volume (ratio of each total purchased raw material volume) for each of the multiple types.

[0014] Such a carbon dioxide emission calculation system can allocate unallocated CO2 emissions when the total excess CO2 emissions and the total compensation CO2 emissions do not match, and can allocate the total amount of CO2 emissions related to raw materials during a specified period.

[0015] In another aspect, in the carbon dioxide emission calculation system described above, the unit emission amount information storage unit further stores, in the CO2 emission generated when the factory scrap is reused as the turned scrap in the manufacture of a product of the type, the CO2 emission amount per unit amount of the turned scrap in association with the type, as turned scrap unit emission amount information, and further includes a turned scrap amount calculation unit that calculates a total turned scrap amount of the type for each of the plurality of types, and a first type unit emission amount calculation unit that calculates a CO2 emission amount per unit amount of the type for each of the plurality of types by dividing the total CO2 emission amount of the type in the specified period by the total product amount of the type in the specified period based on the total product information, and when the type is a type for which the purchased raw material amount is greater than the product amount, the turned scrap amount calculation unit calculates the total turned scrap amount of the type by setting the total factory scrap amount of the type based on the total product information to the total turned scrap amount of the type, and when the type is a type for which the purchased raw material amount is less than the product amount, the turned scrap amount calculation unit calculates the total turned scrap amount of the type by setting the total factory scrap amount of the type based on the total product information to the total turned scrap amount of the type, and when the purchased raw material amount is greater than the product amount, the first type unit emission calculation unit multiplies the subtraction result obtained by subtracting the total excess amount of the type from the total purchased raw material amount of the type based on the total product information by the CO2 emission per unit amount of purchased raw material of the product of the type based on the raw material unit emission information, and multiplies the total amount of rotational scrap of the type obtained by the rotational scrap amount calculation unit by the CO2 emission product per unit amount of rotational scrap of the type based on the rotational scrap unit emission information. the sum of the second multiplication result calculated by the distribution processing unit and the allocation amount allocated to the type by the distribution processing unit is calculated as the total CO2 emission amount of the type in the specified period, and if the type is one in which the purchased raw material amount is less than the product amount, the third multiplication result obtained by multiplying the total purchased raw material amount of the type based on the total product information by the CO2 emission amount per unit amount of purchased raw material of the product of the type based on the raw material unit emission information, the CO2 emission amount in the total compensation amount of the type calculated by the total compensation amount emission calculation unit, and the total rotational scrap amount of the type calculated by the rotational scrap amount calculation unit are added to theThe sum of a fourth multiplication result obtained by multiplying the CO2 emission product per unit amount of the rotating scrap of the type based on the rotating scrap unit emission information and the allocation amount allocated to the type by the allocation processing unit is calculated as the total CO2 emission amount of the type in the predetermined period.

[0016] Such a carbon dioxide emission calculation system can calculate the amount of CO2 emission per unit amount for each type on a product volume basis (product volume standard).

[0017] In another aspect, the above-mentioned carbon dioxide emission calculation system further includes an individual product information storage unit that stores the product amount of the product manufactured in the specified period as individual product information, and a first product emission calculation unit that calculates the CO2 emission of the product by multiplying the product amount of the product based on the individual product information by the CO2 emission per unit amount of the type of product calculated by the first type unit emission calculation unit.

[0018] Such a carbon dioxide emission calculation system can calculate the amount of CO2 emission from a product on a product volume basis (product volume standard).

[0019] In another aspect, in the carbon dioxide emission calculation system described above, the unit emission information storage unit further stores, in the CO2 emission generated when the factory scrap is reused as the rotary scrap in the manufacture of a product of the type, the CO2 emission per unit amount of the rotary scrap as rotary scrap unit emission information in association with the type, and further includes a rotary scrap amount calculation unit that calculates a total rotary scrap amount of the type for each of the plurality of types, and a second type unit emission calculation unit that calculates a CO2 emission per unit amount of the type for each of the plurality of types by dividing the total CO2 emission of the type in the specified period by a total material amount that is the sum of the total purchased raw material amount and the total factory scrap of the type in the specified period based on the total product information, and when the type is a type for which the purchased raw material amount is greater than the product amount, the rotary scrap amount calculation unit calculates the total rotary scrap amount of the type by taking the total factory scrap amount of the type based on the total product information as the total rotary scrap amount of the type, and when the type is a type for which the purchased raw material amount is less than the product amount, the rotary scrap amount calculation unit calculates the total rotary scrap amount of the type from the total factory scrap of the type based on the total product information. and when the purchased raw material amount is greater than the product amount, the second type unit emission calculation unit calculates a first multiplication result obtained by multiplying a subtraction result obtained by subtracting the total excess amount of the type from the total purchased raw material amount of the type based on the total product information by the CO2 emission per unit amount of purchased raw material of the product of the type based on the raw material unit emission information, and a second type unit emission calculation unit calculates a first multiplication result obtained by multiplying a CO2 emission per unit amount of purchased raw material of the product of the type based on the raw material unit emission information by the total amount of turned scrap of the type calculated by the turned scrap amount calculation unit. The sum of the second multiplication result obtained by multiplying the two emission products by the amount of CO2 emissions allocated to the type by the allocation processing unit is calculated as the total CO2 emissions of the type in the specified period, and if the type is one in which the purchased raw material amount is less than the product amount, the third multiplication result obtained by multiplying the total purchased raw material amount of the type based on the total product information by the CO2 emissions per unit amount of purchased raw material of the type of product based on the raw material unit emission information, the CO2 emissions in the total compensation amount of the type calculated by the total compensation amount emission calculation unit, and the total rotational scrap amount of the type calculated by the rotational scrap amount calculation unit are added to the third multiplication result.The sum of the fourth multiplication result obtained by multiplying the CO2 emission product per unit amount of the rotating scrap of the type based on the rotating scrap unit emission information and the allocation amount allocated to the type by the allocation processing unit is calculated as the total CO2 emission amount of the type in the predetermined period.

[0020] Such a carbon dioxide emission calculation system can calculate the amount of CO2 emission per unit amount for each type of material on a material amount basis (material amount standard).

[0021] In another aspect, the above-mentioned carbon dioxide emission calculation system further includes an individual product information storage unit that stores the amount of material of the product manufactured in the specified period as individual product information, and a second product emission calculation unit that calculates the CO2 emission of the product by multiplying the amount of material of the product based on the individual product information by the CO2 emission per unit amount of the type of product calculated by the second type unit emission calculation unit.

[0022] This type of carbon dioxide emission calculation system can calculate the amount of CO2 emissions from a product based on the amount of material (material amount standard).

[0023] A carbon dioxide emission calculation method according to another aspect of the present invention is a method for calculating CO2 emissions in a factory capable of manufacturing multiple types of products that are manufactured from raw materials through multiple processes, wherein, in a specified period of time, the purchased raw material amount and the finished product amount match, factory scrap generated by carrying out the processes are reused as turned scrap in the manufacture of the products, and the amount of turned scrap is considered to be a constant amount if the amount that cannot be reused is ignored, and the multiple types include types in which the purchased raw material amount and the finished product amount do not match, and when the purchased raw material amount is greater than the finished product amount, the method calculates the CO2 emission per unit amount of the excess amount of the purchased raw material that exceeds the finished product amount, and when the purchased raw material amount is less than the finished product amount, the method calculates the CO2 emission per unit amount of the compensation amount in which the factory scrap compensates for the shortage in the purchased raw material amount.

[0024] Such a carbon dioxide emission calculation method can obtain the amount of CO2 emission even when viewed macroscopically from the viewpoint of each product type (each product category).

[0025] Another aspect of the present invention is a carbon dioxide emission calculation program that calculates CO2 emissions for a target product of a target type manufactured during a specified period in a factory capable of manufacturing multiple types of products that are manufactured from raw materials through multiple processes, and causes a computer to function as any of the carbon dioxide emission calculation systems described above.

[0026] This makes it possible to provide a carbon dioxide emission calculation program, which has the same effects as those of the above-mentioned carbon dioxide emission calculation systems. Effect of the Invention

[0027] The carbon dioxide emission calculation system, the carbon dioxide emission calculation method, and the carbon dioxide emission calculation program according to the present invention can calculate the amount of CO2 emission even when viewed macroscopically from the viewpoint of each type of product (each type of product). [Brief description of the drawings]

[0028] [Figure 1] This is a conceptual diagram to explain the macroscopic concept of purchased raw materials becoming products and factory scraps turning into scraps within the factory. [Diagram 2] FIG. 1 is a diagram for explaining an overview of a carbon dioxide emission calculation system according to an embodiment. [Diagram 3] FIG. 2 is a diagram showing a configuration of the carbon dioxide emission calculation system. [Figure 4] FIG. 13 is a diagram showing a total product information table as an example. [Diagram 5] FIG. 13 is a diagram illustrating an example of a unit discharge amount information table. [Figure 6] FIG. 13 is a diagram showing an individual product information table as an example. [Figure 7] 13 is a diagram for explaining, as an example, how to calculate the total excess amount, the total compensation amount, and the total amount of rotational scraps. FIG. [Figure 8] As an example, this is a diagram for explaining how to calculate the amount of CO2 emission per unit amount in the excess amount (excess amount unit CO2 emission). [Figure 9] As an example, this is a diagram for explaining how to calculate the total compensation amount by type and the CO2 emission amount for the total compensation amount by type. [Figure 10] FIG. 13 is a diagram for explaining how to calculate the distribution amount by type, as an example. [Figure 11] FIG. 11 is a schematic diagram for explaining, as an example, each of the operations shown in FIGS. [Figure 12] FIG. 13 is a diagram for explaining how to calculate the total amount of rotating scraps by type, as an example. [Figure 13] As an example, this figure is a diagram for explaining how to calculate CO2 emissions for each type of total purchased raw material amount, total replenishment scrap amount, and total turned scrap amount remaining in the product. [Figure 14] FIG. 13 is a diagram for explaining how to calculate the total amount of CO2 emissions by type, as an example. [Figure 15] As an example, this is a diagram for explaining how to calculate the amount of CO2 emission per unit amount of a product type and the amount of CO2 emission of the product on a product amount basis. [Figure 16] As an example, this is a diagram for explaining how to calculate the amount of CO2 emission per unit amount of a product type and the amount of CO2 emission of the product on a material amount basis. [Figure 17] 4 is a flowchart showing an operation of the carbon dioxide emission calculation system. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0029] Hereinafter, one or more embodiments of the present invention will be described with reference to the drawings. However, the scope of the invention is not limited to the disclosed embodiments. In addition, configurations with the same reference numerals in each drawing indicate that they are the same configurations, and their description will be omitted as appropriate. In this specification, when referring to a general term, a reference numeral without a subscript is used, and when referring to an individual configuration, a reference numeral with a subscript is used.

[0030] Fig. 1 is a conceptual diagram for explaining a macroscopic view of purchased raw materials becoming products and factory scraps rotating as scraps in a factory. Fig. 1A shows the macroscopic view, and Fig. 1B shows the generation of factory scraps. Fig. 2 is a diagram for explaining an outline of a carbon dioxide emission calculation system in an embodiment. Fig. 2A shows the generation of an excess amount and the temporary conversion to scrap, and Fig. 2B shows the compensation amount.

[0031] The carbon dioxide emission calculation system in the embodiment is a system for calculating the amount of carbon dioxide emission (CO2 emission) in a factory (plant) capable of manufacturing multiple types of products manufactured from raw materials through multiple processes. In the carbon dioxide emission calculation system in this embodiment, for example, as shown in FIG. 1, in a predetermined period, the purchased raw material amount α-δ of the purchased raw material and the product amount β of the product match (α-δ=β), the factory scrap generated by the implementation of the process STk (k=an integer of 1 to 6 in the example of FIG. 1B) are reused as tumbling scrap in the manufacture of the product, and the amount of tumbling scrap γ of the tumbling scrap is considered to be a constant amount if the amount δ that cannot be reused is ignored. In the factory that manufactures multiple types, if the purchased raw material amount and the product amount match for all the multiple types, as described above, the CO2 emission of the material (=purchased raw material + factory scrap) from the perspective of the product can be calculated as the sum of the CO2 emission of the purchased raw material equivalent to the product amount and the CO2 emission of the tumbling scrap equivalent to the loss amount (equivalent to the yield loss amount) of the loss generated by the implementation of the process. On the other hand, in this embodiment, the multiple types include types in which the purchased raw material amount and the product amount do not match. Therefore, in the carbon dioxide emission calculation system in this embodiment, as shown in FIG. 2, for example, the excess amount a is once turned into rotation scrap as the rotation scrap amount b and is used as the compensation amount c in the manufacture of the product. For types in which the purchased raw material amount α-δ is greater than the product amount β, the above-mentioned macroscopic understanding is possible by deducting the CO2 emission in the excess amount a from the CO2 emission in the purchased raw material, and for types in which the purchased raw material amount α-δ is less than the product amount β, the above-mentioned macroscopic understanding is possible by incorporating the CO2 emission in the compensation amount c into the CO2 emission in the purchased raw material. In order to incorporate the CO2 emission in the compensation amount c, the CO2 emission per unit amount is required. Therefore, in an embodiment, the carbon dioxide emission calculation system includes a unit emission calculation unit which calculates the amount of CO2 emission per unit amount of the purchased raw materials in excess of the product amount when the purchased raw materials amount is greater than the product amount, and calculates the amount of CO2 emission per unit amount of the compensation amount by which the shortfall in the purchased raw materials amount is compensated for by the factory waste when the purchased raw materials amount is less than the product amount.

[0032] Hereinafter, such a carbon dioxide emission calculation system, as well as a carbon dioxide emission calculation method and a carbon dioxide emission calculation program implemented therein, will be described in more detail. Here, as an example, a factory (plant) capable of manufacturing a wide variety of rolled steel plates will be described, but the factory (plant) may be any as long as it has multiple equipment and can manufacture multiple types of products manufactured through multiple processes. The carbon dioxide emission calculation system may be configured by connecting an input / output terminal device that inputs and outputs data, one or more arithmetic processing devices (e.g., server devices) that execute various arithmetic processing, and one or more database devices that store (manage) various data so that they can communicate with each other, and at least some of these input / output terminal devices, one or more arithmetic processing devices, and one or more database devices may be configured as an integrated device and connected to the remainder so that they can communicate with each other. Here, the carbon dioxide emission calculation system will be described using an example of a carbon dioxide emission calculation device in which all are integrated.

[0033] FIG. 3 is a diagram showing the configuration of the carbon dioxide emission calculation system. FIG. 4 is a diagram showing a total product information table as an example. FIG. 5 is a diagram showing a unit emission information table as an example. FIG. 6 is a diagram showing an individual product information table as an example. FIG. 7 is a diagram for explaining how to calculate the total excess amount, the total compensation amount, and the total rotating scrap amount as an example. FIG. 8 is a diagram for explaining how to calculate the CO2 emission per unit amount in the excess amount (excess amount unit CO2 emission amount) as an example. FIG. 9 is a diagram for explaining how to calculate the total compensation amount by type and the CO2 emission amount in the total compensation amount by type as an example. FIG. 10 is a diagram for explaining how to calculate the allocation amount by type as an example. FIG. 11 is a schematic diagram for explaining each calculation shown in FIG. 7 to FIG. 10 as an example. FIG. 12 is a diagram for explaining how to calculate the total rotating scrap amount by type as an example. FIG. 13 is a diagram for explaining, as an example, how to calculate the CO2 emission for each of the total purchased raw material amount, the total supplementary scrap amount, and the total tumbling scrap amount remaining in the product by type. FIG. 13A shows the case of the total purchased raw material amount remaining in the product, FIG. 13B shows the case of the total supplementary scrap amount, and FIG. 13C shows the case of the total tumbling scrap amount by type. FIG. 14 is a diagram for explaining, as an example, how to calculate the total CO2 emission by type. FIG. 15 is a diagram for explaining, as an example, how to calculate the CO2 emission per unit amount in the type of product and the CO2 emission in the product on a product amount basis. FIG. 15A shows the case of the CO2 emission per unit amount, and FIG. 15B shows the case of the CO2 emission in the product. FIG. 16 is a diagram for explaining, as an example, how to calculate the CO2 emission per unit amount in the type of product and the CO2 emission in the product on a material amount basis. FIG. 16A shows the case of the CO2 emission per unit amount, and FIG. 16B shows the case of the CO2 emission in the product.

[0034] A carbon dioxide emission calculation system (a carbon dioxide emission calculation device as an example) 1000 in an embodiment includes, for example, a control processing unit 1, an input unit 2, an output unit 3, an interface unit (IF unit) 4, and a memory unit 5, as shown in FIG. 1.

[0035] The input unit 2 is connected to the control processing unit 1 and is a device that inputs various commands, such as a command to start calculation, and various amounts and various data required to operate the carbon dioxide emission calculation device 1000, such as the amount of CO2 emission per unit amount, to the carbon dioxide emission calculation device 1000, and is, for example, a keyboard, a mouse, or a plurality of input switches to which predetermined functions are assigned. The output unit 3 is connected to the control processing unit 1 and is a device that outputs the commands, data, and calculation results input from the input unit 2 under the control of the control processing unit 1, and is, for example, a display device such as a CRT display, an LCD (liquid crystal display device), or an organic EL display, or a printing device such as a printer.

[0036] The input unit 2 and the output unit 3 may be configured with a touch panel. In the case of configuring this touch panel, the input unit 2 is, for example, a resistive film type or capacitive type position input device that detects and inputs an operation position, and the output unit 3 is a display device. In this touch panel, a position input device is provided on the display surface of the display device, and one or more input content candidates that can be input to the display device are displayed. When a user touches a display position that displays the input content that the user wants to input, the position is detected by the position input device, and the display content displayed at the detected position is input to the carbon dioxide emission calculation device 1000 as the user's operation input content. In such a touch panel, the user can easily intuitively understand the input operation, and therefore a carbon dioxide emission calculation device 1000 that is easy for the user to handle is provided.

[0037] The IF unit 4 is connected to the control processing unit 1 and is a circuit that inputs and outputs data to and from, for example, an external device under the control of the control processing unit 1, and is, for example, an interface circuit of RS-232C, which is a serial communication method, an interface circuit using the Bluetooth (registered trademark) standard, an interface circuit using the USB standard, etc. The IF unit 4 may also be, for example, a communication interface circuit that transmits and receives communication signals to and from an external device, such as a data communication card or a communication interface circuit conforming to the IEEE802.11 standard, etc.

[0038] The storage unit 5 is connected to the control processing unit 1, and is a circuit that stores various predetermined programs and various predetermined data under the control of the control processing unit 1.

[0039] The various predetermined programs include, for example, a control processing program, and the control processing program includes, for example, a control program, a unit emission amount calculation program, a total compensation amount emission amount calculation program, an allocation processing program, a rotation scrap amount calculation program, a first type unit emission amount calculation program, a first product emission amount calculation program, a second type unit emission amount calculation program, and a second product emission amount calculation program. The control program controls each of the parts 2 to 5 of the carbon dioxide emission calculation device 1000 according to the function of each part. The unit emission amount calculation program is a program that calculates the CO2 emission per unit amount of the excess amount of the purchased raw material amount that exceeds the product amount when the purchased raw material amount is greater than the product amount, and calculates the CO2 emission per unit amount of the compensation amount that compensates for the shortage of the purchased raw material amount with the factory scraps when the purchased raw material amount is less than the product amount. The total compensation amount emission calculation program is a program for calculating a total compensation amount, which is the total amount of compensation for the type of product in the specified period based on total product information described below, for the type of product whose purchased raw material amount is less than the product amount, and calculating the CO2 emission amount in the calculated total compensation amount by multiplying the calculated total compensation amount by the CO2 emission amount per unit amount in the compensation amount calculated by the unit emission calculation program, and calculating the total CO2 emission amount in the calculated total compensation amount for the type of product whose purchased raw material amount is less than the product amount as the total compensation amount CO2 emission. Note that the total compensation amount emission calculation program includes a compensation amount emission calculation program for calculating a total compensation amount, which is the total amount of compensation for the type of product in the specified period based on total product information, for the type of product whose purchased raw material amount is less than the product amount, and calculating the CO2 emission amount in the calculated total compensation amount by multiplying the calculated total compensation amount by the CO2 emission amount per unit amount in the compensation amount calculated by the unit emission calculation program.The allocation processing program is a program for calculating an unallocated CO2 emission amount by subtracting the total compensation amount CO2 emission amount calculated by the total compensation amount emission calculation program from the total excess amount CO2 emission amount calculated by the total excess amount emission calculation program, and allocating the calculated unallocated CO2 emission amount to each of the multiple types. The rotating scrap amount calculation program is a program for calculating a total rotating scrap amount for each of the multiple types. The first type unit emission calculation program is a program for calculating a CO2 emission amount per unit amount for each of the multiple types by dividing the total CO2 emission amount for the type in the specified period by the total product amount for the type in the specified period based on the total product information. The first product emission calculation program is a program for calculating a CO2 emission amount for the product by multiplying the product amount for the product based on the individual product information described below by the CO2 emission amount per unit amount for the type of product calculated by the first type unit emission calculation program. The second type unit emission calculation program is a program for calculating the CO2 emission per unit amount for each of the plurality of types by dividing the total CO2 emission of the type in the specified period by the total material amount, which is the sum of the total purchased raw materials amount and the total factory waste amount of the type in the specified period based on the total product information. The second product emission calculation program is a program for calculating the CO2 emission of the product by multiplying the product amount of the product based on the individual product information by the CO2 emission per unit amount for the type of product calculated by the second type unit emission calculation program.

[0040] The various types of specified data include data necessary for executing each of these programs, such as total product information, raw material unit discharge information, individual product information, rotational chip unit discharge information, various intermediate calculation results, and final calculation results.

[0041] Such a storage unit 5 includes, for example, a ROM (Read Only Memory) which is a nonvolatile storage element, an EEPROM (Electrically Erasable Programmable Read Only Memory) which is a rewritable nonvolatile storage element, etc. The storage unit 5 also includes a RAM (Random Access Memory) which serves as a so-called working memory of the control processing unit 1 for storing data generated during execution of the predetermined program, etc. The storage unit 5 may also be configured to include a hard disk device with a relatively large storage capacity.

[0042] The memory unit 5 functionally comprises a total product information memory unit 51, a unit discharge amount information memory unit 52, and an individual product information memory unit 53 for storing total product information, raw material unit discharge amount information, individual product information, and turned scrap unit discharge amount information.

[0043] The total product information storage unit 51 stores total product information. The total product information is information (data) that indicates the total amount of a predetermined item related to a product of each type of product in a predetermined period, and includes the total purchased raw material amount, which is the total amount of purchased raw materials, the total factory waste amount, which is the total amount of factory waste, and the total product amount, which is the total amount of products, in the product of the type in the predetermined period. The predetermined period is arbitrary and is set appropriately depending on, for example, the use of the carbon dioxide emission calculation device 1000 (the purpose of calculating the CO2 emission). In one example, the predetermined period is set to three months (quarters), half a year, one year, or the like.

[0044] In this specification, the expression "total XXX amount" refers to the total amount of XXX for a certain type of product in the specified period. The expression "total XXX amount" described below refers to the total amount of XXX obtained by adding up the total XXX amounts for all types in the specified period. The expression "XXX amount" described below refers to the amount of XXX for a single product in the specified period. In this way, in this specification, three amounts of XXX are described as necessary for XXX: total XXX amount, total XXX amount, and XXX amount.

[0045] In this embodiment, the total product information is stored in table form in the total product information storage unit 51. The total product information table PT for registering the total product information includes, for example, a type name field 511 for registering the type name of the product (the name of the type for specifying and identifying the type of the product), a total purchased raw material amount field 512 for registering the total purchased raw material amount [ton] of the product of the type name registered in the type name field 511, a total factory scrap amount field 513 for registering the total factory scrap amount [ton] of the product of the type name registered in the type name field 511, a total material amount field 514 for registering the total material amount [ton] of the product of the type name registered in the type name field 511, a total product amount field 515 for registering the total product amount [ton] of the product of the type name registered in the type name field 511, and a yield field 516 for registering the yield [%] of the product of the type name registered in the type name field 511, as shown in FIG. 4, and has a record for each type (type name). As described above, materials are purchased raw materials used in the manufacture of products and factory scraps reused during the process, so the total amount of materials can be calculated as the sum of the total amount of purchased raw materials and the total amount of factory scraps, and so the total material amount field 514 may be omitted from the total product information table PT. Also, in this embodiment, the yield is a reference value, and the yield field 516 may be omitted from the total product information table PT.

[0046] The unit emission amount information storage section 52 stores unit emission amount information that indicates the amount of CO2 emission per unit amount. In this embodiment, the unit emission amount includes raw material unit emission amount information that indicates the amount of CO2 emission per unit amount of purchased raw materials for the product, and tumbler chip unit emission amount information that indicates the amount of CO2 emission per unit amount of tumbler chips.

[0047] In this embodiment, the unit emission information is stored in the unit emission information storage unit 52 in table format. The unit emission information table NT for registering this unit emission information includes a purchased raw material name field 521 for registering the purchased raw material name (the name of the purchased raw material for specifying and identifying the purchased raw material) and a unit CO2 emission amount field 522 for registering the CO2 emission amount [tCO2 / ton] per unit amount of the purchased raw material of the purchased raw material name registered in the purchased raw material name field 521, as shown in FIG. 5, for example, and has a record for each type of purchased raw material (purchased raw material name). In this embodiment, as described above, the unit emission information includes the tumbled scrap unit emission information, so the unit emission information table NT includes a record in which "tumbled scrap" is registered in the purchased raw material name field 521 instead of the purchased raw material name, and the CO2 emission amount per unit amount of the tumbled scrap is registered in the unit CO2 emission amount field 522 of this record. In this way, the tumbled scrap unit emission information is registered in the unit emission information table NT. In this embodiment, the amount of CO2 emission per unit amount of turned waste is a value commonly used for all types of turned waste, but it may be an individual value set for each type of turned waste.

[0048] The individual product information storage unit 53 stores individual product information. The individual product information is information (data) that indicates the amount of a specific item related to the product in a specific period for each product, and includes the product amount and material amount (the amount of material of the product) of the product manufactured in the specific period.

[0049] In this embodiment, the individual product information is stored in table format in the individual product information storage unit 53. The individual product information table IT in which this individual product information is registered includes, for example, as shown in Fig. 6, a type name field 531 in which a product type name is registered, a product name field 532 in which a product name (a name of a product for specifying and identifying a product) is registered, a product quantity field 533 in which a product quantity [tons] of the product having the product name registered in the product name field 532 is registered, and a material quantity field 534 in which a material quantity [tons] of the product having the product name registered in the product name field 532 is registered, and has a record for each product name.

[0050] The total product information, unit emission amount information, and individual product information are stored in advance in the storage unit 5 when calculating the CO2 emission amount. When analyzing the production results, the total product information and the individual product information are the result values ​​of the products manufactured in a specified period, in which case the CO2 emission amount of the materials is the result value, and when analyzing the production plan, they are the planned values ​​of the products planned in the specified period, in which case the CO2 emission amount of the materials is the planned value (predicted value).

[0051] Returning to Fig. 3, the control processing unit 1 is a circuit for controlling each of the units 2-5 of the carbon dioxide emission amount calculation device 1000 according to the function of each unit, and calculating the amount of CO2 emission. The control processing unit 1 is configured to include, for example, a CPU (Central Processing Unit) and its peripheral circuits. By executing the control processing program, the control processing unit 1 is functionally configured with a control unit 11, a unit emission amount calculation unit 12, a total compensation amount emission amount calculation unit 13, an allocation processing unit 14, a rotation chip amount calculation unit 15, a first type unit emission amount calculation unit 16, a first product emission amount calculation unit 17, a second type unit emission amount calculation unit 18, and a second product emission amount calculation unit 19.

[0052] The control unit 11 controls each of the units 2 to 5 of the carbon dioxide emission calculation device 1000 in accordance with the function of each unit, and is responsible for controlling the carbon dioxide emission calculation device 1000 as a whole.

[0053] The unit emission calculation unit 12 calculates the CO2 emission per unit amount of the excess amount of the purchased raw materials that exceeds the product amount when the purchased raw materials amount is greater than the product amount, and calculates the CO2 emission per unit amount of the compensation amount that compensates for the shortage of the purchased raw materials amount with the factory waste when the purchased raw materials amount is less than the product amount. In this embodiment, the unit emission calculation unit 12 functionally comprises a total excess amount calculation unit 121, a total excess amount emission calculation unit 122, and a basic unit calculation unit 123.

[0054] The total excess amount calculation unit 121 calculates, for each of a plurality of types of products for which the amount of purchased raw materials is greater than the amount of product, a total excess amount, which is the total amount of excess amounts for that type of product during the specified period, based on the total product information, and calculates the total excess amount as the sum of the total excess amounts calculated for types for which the amount of purchased raw materials is greater than the amount of product.

[0055] For example, in the examples shown in Figures 4 to 6, the types with a greater amount of purchased raw materials than the amount of product are type name "A", type name "B", and type name "C". Note that Figure 4 shows total product information, the total amount of purchased raw materials, and the total amount of product, and the magnitude relationship between the total amount of purchased raw materials and the total amount of product can be determined from Figure 4, but the magnitude relationship between the total amount of purchased raw materials and the total amount of product is the same as the magnitude relationship between the amount of purchased raw materials and the amount of product of a single product, so the magnitude relationship between the amount of purchased raw materials and the amount of product of a single product can be determined from Figure 4. In this example, the total excess amount calculation unit 121 subtracts the total product amount from the total purchased raw material amount for each type, namely "A", "B", and "C", to obtain a total excess amount of "30" tons (=100-70) for type name "A", a total excess amount of "20" tons (=70-50) for type name "B", and a total excess amount of "10" tons (=100-90) for type name "C", as shown in Figure 7, and then calculates the sum of these calculated total excess amounts as a total excess amount of "60" tons (=30+20+10) as shown in Figure 8.

[0056] The total excess amount emission calculation unit 122 calculates, for each of the multiple types of products for which the amount of purchased raw materials is greater than the amount of product, a total excess amount that is the total amount of excess amounts for that type of product during the specified period based on the total product information, calculates the CO2 emissions in the total excess amount calculated for that type of product based on the raw material unit emission information, and calculates the sum of the CO2 emissions in the total excess amount calculated for types for which the amount of purchased raw materials is greater than the amount of product as the total excess amount CO2 emissions.

[0057] For example, in the above example, the types with the purchased raw material amount greater than the product amount are type name "A", type name "B" and type name "C", and the total excess amount of type name "A" is calculated as "30" [tons], the total excess amount of type name "B" is calculated as "20" [tons] and the total excess amount of type name "C" is calculated as "10" [tons]. Since the CO2 emission amount per unit of type name "A" is "10" [tCO2 / ton], the total excess amount calculation unit 122 multiplies the CO2 emission amount per unit of type name "A" by the total excess amount of type name "30" [tons] to calculate the CO2 emission amount of "300" [tCO2] (=10×30) in the total excess amount as shown in FIG. 8. Similarly, the total excess amount emission calculation unit 122 calculates the amount of CO2 emission in the total excess amount for type name "B" as "150" [tCO2] (=7.5×20), and calculates the amount of CO2 emission in the total excess amount for type name "C" as "90" [tCO2] (=9×10).Then, the total excess amount emission calculation unit 122 calculates the sum of the CO2 emission amounts in these calculated total excess amounts as the total excess amount CO2 emission of "540" [tCO2] (=300+150+90), as shown in FIG.

[0058] The unit cost calculation unit 123 divides the total excess CO2 emission amount calculated by the total excess emission amount calculation unit 122 by the total excess amount calculated by the total excess amount calculation unit 121, thereby calculating the CO2 emission amount per unit amount in the excess amount as the CO2 emission amount per unit amount in the compensation amount.

[0059] In the above example, as shown in FIG. 8, the basic unit calculation unit 123 divides the total excess CO2 emission amount of "540" [tCO2] calculated by the total excess emission amount calculation unit 122 by the total excess amount of "60" [tons] calculated by the total excess amount calculation unit 121, thereby calculating the CO2 emission amount per unit amount in the excess amount of "9" [tCO2 / ton] (=540 / 60) as the CO2 emission amount per unit amount in the compensation amount ((CO2 emission amount per unit amount in the compensation amount)=(CO2 emission amount per unit amount in the excess amount); "9" [tCO2 / ton]).

[0060] The total compensation amount emission calculation unit 13 calculates a total compensation amount, which is the total compensation amount for products of the type in the specified period based on the total product information, for those types among the multiple types of products in which the amount of purchased raw materials is less than the product amount, calculates the CO2 emission amount in the calculated total compensation amount by multiplying the calculated total compensation amount by the CO2 emission per unit amount in the compensation amount calculated by the unit emission calculation unit 12, and calculates the total compensation amount CO2 emission as the sum of the CO2 emissions in the calculated total compensation amount for types in which the amount of purchased raw materials is less than the product amount. Therefore, the total compensation amount emission calculation unit 13 includes a compensation amount emission calculation unit that calculates a total compensation amount, which is the total compensation amount for products of the type in the specified period based on the total product information, for those types of products in which the purchased raw material amount is less than the product amount among the multiple types of products, and calculates the CO2 emission amount in the calculated total compensation amount by multiplying the calculated total compensation amount by the CO2 emission amount per unit amount in the compensation amount calculated by the unit emission calculation unit 12.

[0061] In the examples shown in Figures 4 to 6 above, the types with a purchased raw material amount less than the product amount are type name "D" and type name "E." Therefore, in this example, the total compensation amount discharge calculation unit 13 subtracts the total purchased raw material amount from the total product amount for each of the types "D" and "E," thereby obtaining a total compensation amount of "20" [tons] (=40-20) for type name "D" and a total compensation amount of "30" [tons] (=60-30) for type name "E," as shown in Figure 9. Next, the total compensation amount emission calculation unit 13 multiplies the calculated total compensation amount of "20" [ton] by the CO2 emission amount per unit amount of the compensation amount calculated by the unit emission amount calculation unit 12 of "9" [tCO2 / ton] for the type name "D" to calculate the CO2 emission amount of "180" [tCO2] for the total compensation amount, and multiplies the calculated total compensation amount of "30" [ton] by the CO2 emission amount per unit amount of the compensation amount calculated by the unit emission amount calculation unit 12 of "9" [tCO2 / ton] to calculate the CO2 emission amount of "270" [tCO2] for the total compensation amount. Then, the total compensation amount emission calculation unit 13 calculates the sum of the CO2 emission amounts for these calculated total compensation amounts as the total compensation amount CO2 emission amount of "450" ​​[tCO2] (=180+270).

[0062] The allocation processing unit 14 calculates unallocated CO2 emissions by subtracting the total compensation amount CO2 emissions calculated by the total compensation amount emission calculation unit 13 from the total excess CO2 emissions calculated by the total excess amount emission calculation unit 122, and allocates the calculated unallocated CO2 emissions to each of the multiple types. The allocation method is appropriately defined in advance, and for example, the allocation processing unit 14 allocates the calculated unallocated CO2 emissions to each of the multiple types based on the ratio of the product amounts in each of the multiple types of products (here, the ratio of the total product amounts). Alternatively, for example, the allocation processing unit 14 allocates the calculated unallocated CO2 emissions to each of the multiple types based on the ratio of the purchased raw material amounts in each of the multiple types of products (here, the ratio of the total purchased raw material amounts).

[0063] 8 and 9, in the above example, the allocation processing unit 14 calculates an unallocated CO2 emission amount of "90" [tCO2] (=540-450) by subtracting the total compensation amount CO2 emission amount of "450" ​​[tCO2] calculated by the total compensation amount emission calculation unit 13 from the total excess CO2 emission amount of "540" [tCO2] calculated by the total excess emission amount calculation unit 122. Then, the allocation processing unit 14 allocates the calculated unallocated CO2 emission amount of "90" [tCO2] to each of the multiple types of products. As an example, in the case of allocating based on the ratio of product amounts, here, the ratio of total product amounts, the allocation processing unit 14 first calculates the ratio of the total product amounts by adding up the total product amounts of each of the multiple product types "A", "B", "C", "D", and "E" (70, 50, 90, 40, and 60 tons) as "310" tons (=70+50+90+40+60) as shown in Figures 10 and 11. Then, for each of the multiple product types "A", "B", "C", "D", and "E", the amount of CO2 emissions allocated to the type is calculated by multiplying the unallocated CO2 emissions of "90" tons by the ratio of the total product amounts for the type. For example, in the case of type "A", the unallocated CO2 emissions of "90" [tCO2] are multiplied by the ratio of the total product volume of type "A" of "70 / 310", to obtain the allocation of CO2 emissions for type "A" of "20.32" [tCO2] (≒90 x 70 / 310, rounded off to two decimal places). The same can be done for each of the other types "B" to "E".

[0064] On the other hand, in the case of allocating based on the ratio of the amount of purchased raw materials, here, the ratio of the total amount of purchased raw materials, first, in order to calculate the ratio of the total amount of purchased raw materials, in the example shown in the above-mentioned Figures 4 to 6, the total amount of purchased raw materials for each of the multiple product types; "A", "B", "C", "D", and "E"; is calculated as "320" [tons] (=100+70+100+20+30) by adding up the total amount of purchased raw materials for each of the multiple product types; "A", "B", "C", "D", and "E". Then, for each of the multiple product types; "A", "B", "C", "D", and "E", the amount of CO2 emissions to be allocated to the type is calculated by multiplying the unallocated CO2 emissions of "90" [tCO2] calculated above by the ratio of the total amount of purchased raw materials for the type. For example, in the case of type "A", the unallocated CO2 emissions of "90" [tCO2] are multiplied by the ratio of the total purchased raw materials for type "A" (100 / 320), to obtain the allocation of CO2 emissions for type "A" of "28.13" [tCO2] (≒90 x 100 / 320, rounded off to the third decimal place). The same can be done for each of the other types "B" to "E".

[0065] The rotating scrap amount calculation unit 15 calculates the total rotating scrap amount for each of the multiple types of the product. More specifically, when the type is a type for which the purchased raw material amount is greater than the product amount, the rotating scrap amount calculation unit 15 calculates the total rotating scrap amount for the type by setting the total factory scrap amount for the type based on the total product information as the total rotating scrap amount for the type, and when the type is a type for which the purchased raw material amount is less than the product amount, the rotating scrap amount calculation unit 15 calculates the total rotating scrap amount for the type by subtracting the total replacement scrap for the type from the total factory scrap for the type based on the total product information. The total rotating scrap amount for the type is the total amount of rotating scrap for the product of the type during the specified period.

[0066] In the above example, the types for which the amount of purchased raw materials is greater than the amount of product are type name; "A", type name; "B", and type name; "C", and the types for which the amount of purchased raw materials is less than the amount of product are type name; "D" and type name; "E".

[0067] In one example, for type "A" where the purchased raw material amount is greater than the product amount, as shown in Fig. 12, the rotating scrap amount calculation unit 15 determines the total rotating scrap amount of the type "A" based on the total product information as the total factory scrap amount of "25" [tons], thereby obtaining the total rotating scrap amount of the type "25" [tons]. Similarly, the total factory scrap amount of type "B" is determined as the rotating scrap amount of "30" [tons], and the total factory scrap amount of type "C" is determined as the rotating scrap amount of "30" [tons].

[0068] On the other hand, in one example, for type "D" where the purchased raw material amount is less than the product amount, as shown in Fig. 12, the rotating scrap amount calculation unit 15 obtains the total rotating scrap amount for type "D" of "40" [tons] (=60-20) by subtracting the total supplementary scrap for type "D" of "20" [tons] from the total factory scrap for type "D" of "60" [tons] based on the total product information. Similarly, the total rotating scrap amount for type "E" of "20" [tons] (=50-30) is obtained by subtracting the total supplementary scrap for type "E" of "30" [tons] from the total factory scrap for type "E" of "50" [tons].

[0069] Here, FIG. 12 also shows the amounts before and after allocation. In FIG. 12, from the left in a front view, the type name, the total amount of purchased raw materials before allocation [ton], the total factory scrap before allocation [ton], the total amount of purchased raw materials remaining after allocation [ton], the total amount of supplementary raw materials after allocation [ton], the total amount of excess after allocation [ton], and the total amount of rotation scrap after allocation [ton] are shown. The total amount of purchased raw materials remaining is the total amount of purchased raw materials remaining in the product out of the total amount of purchased raw materials, and is obtained by subtracting the total amount of excess from the total amount of purchased raw materials. When there is no supplementary scrap, it is the total amount of product itself, and when there is supplementary scrap, it is the total amount of purchased raw materials itself. Therefore, when there is supplementary scrap, the total amount of product is the sum of the total amount of purchased raw materials remaining and the total amount of supplementary scrap. Referring to FIG. 12, the supplementary amount of the type is considered to be scrap (excess amount of scrap) derived from purchased raw materials generated in other types, so it can be seen that the amount of product in all types is composed only of purchased raw materials, and the macroscopic understanding can be achieved in terms of purchased raw materials and product amounts. And, since the excess amount after allocation is the total amount of CO2 emissions allocated (distributed) to the compensation scraps and each type, the weight of the excess amount after allocation actually exists, but it can be considered not to exist in the calculation of the CO2 emissions, and the macroscopic understanding can be achieved from the viewpoint of the rotating scraps. Therefore, the carbon dioxide emission calculation device 1000 in the embodiment can achieve the macroscopic understanding.

[0070] The first type unit emission calculation unit 16 calculates the CO2 emission per unit amount for each of the multiple types of products by dividing the total CO2 emission for the type in the specified period by the total product amount for the type in the specified period based on the total product information. More specifically, when calculating the total CO2 emission for the type in the specified period, if the purchased raw material amount is greater than the product amount, the first type unit emission calculation unit 16 calculates the total CO2 emission for the type in the specified period as the sum of a first multiplication result obtained by multiplying the total excess amount of the type from the total purchased raw material amount of the type based on the total product information by the CO2 emission per unit amount of the purchased raw material of the product of the type based on the raw material unit emission information, a second multiplication result obtained by multiplying the total amount of rotational scraps of the type calculated by the rotational scrap amount calculation unit by the CO2 emission product per unit amount of the rotational scraps of the type based on the rotational scrap unit emission information, and the allocation amount allocated to the type by the allocation processing unit. On the other hand, if the purchased amount of raw materials is less than the product amount of the type, the first type unit emission amount calculation unit 16 calculates the total CO2 emissions of the type during the specified period as the sum of a third multiplication result obtained by multiplying the total purchased amount of raw materials of the type based on the total product information by the CO2 emissions per unit amount of purchased raw materials of the product of the type based on the raw material unit emission information, a fourth multiplication result obtained by multiplying the total amount of rotating scraps of the type calculated by the rotating scrap amount calculation unit by the CO2 emissions per unit amount of rotating scraps of the type based on the rotating scrap unit emission information, and the allocation amount allocated to the type by the allocation processing unit.

[0071] In the above example, the types for which the amount of purchased raw materials is greater than the amount of product are type name; "A", type name; "B", and type name; "C", and the types for which the amount of purchased raw materials is less than the amount of product are type name; "D" and type name; "E".

[0072] In one example, for the type "A" where the purchased amount of raw materials is greater than the product amount, the first type unit emission calculation unit 16 first calculates the first and second multiplication results. As shown in Fig. 13A, the first multiplication result for the type "A" is calculated by multiplying the subtraction result (total purchased raw materials amount remaining in the product) of "70" [tons] (=100-30) obtained by subtracting the total excess amount of "30" [tons] for the type "A" from the total purchased raw materials amount of "100" [tons] for the type "A" based on the total product information by the CO2 emission amount per unit amount of purchased raw materials of the product of the type "A" based on the raw material unit emission information of "10" [tCO2 / ton], thereby obtaining "700" [tCO2] (=70 x 10). The second multiplication result for the type "A" is calculated as "5" [tCO2] (=25×0.2) by multiplying the total amount of rotating scraps for the type "A" calculated by the rotating scrap amount calculation unit 15 by the amount of CO2 emissions per unit amount for the type "A" based on the rotating scrap unit amount information, "0.2" [tCO2 / ton], as shown in Fig. 13C. Next, the first type unit amount of emission calculation unit 16 calculates the sum of the first multiplication result for the type "A" (700) [tCO2], the second multiplication result for the type "A" (5) [tCO2], and the amount of allocation for the type "A" (20.32) [tCO2] allocated by the allocation processing unit 14 as the total amount of CO2 emissions for the type "A" during the specified period, as shown in Fig. 14.Similarly, for the type name; "B", the sum of the first multiplication result; "375" [tCO2], the second multiplication result; "6" [tCO2], and the allocation amount; "14.52" [tCO2] allocated by the allocation processing unit 14 is calculated as the total CO2 emission amount; "395.52" [tCO2] (= 375 + 6 + 14.52) for the type name; "B" in the specified period, and the sum of the first multiplication result; "810" [tCO2], the second multiplication result; "6" [tCO2], and the allocation amount; "26.13" [tCO2] allocated by the allocation processing unit 14 in the type name; "C" is calculated as the total CO2 emission amount; "842.13" [tCO2] (= 810 + 6 + 26.13) for the type name; "C". Then, as shown in FIG. 15A, the first type unit emission amount calculation unit 16 divides the total CO2 emission amount of 725.32 tCO2 for the type name "A" in the specified period by the total product amount of 70 tons for the type name "A" in the specified period based on the total product information, to obtain a CO2 emission amount per unit amount of the type name "A" of 10.36 tCO2 / ton (≒725.32 / 70, rounded to two decimal places). Similarly, for type "B", the total CO2 emissions of 395.52 tCO2 are divided by the total product volume of 50 tons to obtain the CO2 emissions per unit volume of 7.91 tCO2 / ton (≒ 395.52 / 50, rounded to the nearest three decimal places), and for type "C", the total CO2 emissions of 842.13 tCO2 are divided by the total product volume of 90 tons to obtain the CO2 emissions per unit volume of 9.36 tCO2 / ton (≒ 842.13 / 90, rounded to the nearest three decimal places).

[0073] On the other hand, in one example, for the type "D" where the purchased amount of raw materials is less than the product amount, the first type unit emission amount calculation unit 16 first calculates the third and fourth multiplication results. As shown in Fig. 13A, the third multiplication result for the type "D" is calculated as "160" [tCO2] (=20 x 8) by multiplying the total purchased amount of raw materials for the type "D" based on the total product information by "8" [tCO2 / ton] of CO2 emissions per unit amount of purchased raw materials for the product of the type "D" based on the raw material unit emission amount information. As shown in FIG. 13C, the fourth multiplication result for type "D" is calculated as "8" [tCO2] (=40×0.2) by multiplying the total amount of rotating chips for type "D" (40 [tons]) calculated by rotating chip amount calculation unit 15 by the CO2 emission per unit amount of rotating chips for type "D" (0.2 [tCO2 / ton]) based on the rotating chip unit emission amount information. Next, as shown in Figure 14, the first type unit emission amount calculation unit 16 calculates the sum of the third multiplication result of "160" [tCO2] for the type name "D", the CO2 emission amount of 180 [tCO2] for the total compensation amount of the type name "D" calculated by the total compensation amount emission calculation unit 13 (see Figures 13B and 9), the fourth multiplication result of "8" [tCO2], and the allocation amount of "11.61" [tCO2] allocated by the allocation processing unit 14, as the total CO2 emission amount of "359.61" [tCO2] (=160+180+8+11.61) for the type name "D" during the specified period. Similarly, the sum of the third multiplication result of "300" [tCO2] for type name "E", the CO2 emissions of 270 [tCO2] for the total compensation amount for type name "E" calculated by total compensation amount emission calculation unit 13, the fourth multiplication result of "4" [tCO2], and the allocation amount of "17.42" [tCO2] allocated by allocation processing unit 14 is calculated as the total CO2 emissions of type name "E" for the specified period: "591.42" [tCO2] (=300+270+4+17.42).Then, as shown in FIG. 15A, the first type unit emission amount calculation unit 16 divides the total CO2 emission amount of 359.61 tCO2 for the type name "D" in the specified period by the total product amount of 40 ton for the type name "D" in the specified period based on the total product information, to obtain a CO2 emission amount per unit amount of 8.99 tCO2 / ton for the type name "D" (≒ 359.61 / 40, rounded to two decimal places). Similarly, for the type "E," the total CO2 emissions of 591.42 tCO2 are divided by the total product volume of 60 tons to obtain the CO2 emissions per unit volume of 9.86 tCO2 / ton (≒591.42 / 60, rounded to two decimal places).

[0074] The first product emission calculation unit 17 calculates the CO2 emission amount for the product (first CO2 emission amount) by multiplying the product quantity of the product based on the individual product information by the CO2 emission amount per unit quantity for the type of product calculated by the first type unit emission calculation unit 16.

[0075] In the examples shown in Figures 4 to 6 above, as one example, for a product with product name; "S1", first product emission calculation unit 17 multiplies the product quantity; "2" [tons] of the product with product name; "S1" based on the individual product information by the CO2 emission per unit quantity; "10.36" [tCO2 / ton] of the type of product type; "A" to which the product with product name; "S1" belongs, calculated by first type unit emission calculation unit 16, to calculate CO2 emission of "20.7" [tCO2] (=2 x 10.36) for the product with product name; "S1", as shown in Figure 15B. In another example, for a product with product name; "S3", as shown in FIG. 15B, the first product emission calculation unit 17 multiplies the product quantity; "1" [ton] of the product with product name; "S3" based on the individual product information by the CO2 emission per unit quantity; "8.99" [tCO2 / ton] of the type of product type; "D" to which the product with product name; "S3" belongs, calculated by the first type unit emission calculation unit 16, to calculate a CO2 emission of "8.99" [tCO2] (=1 x 8.99) for the product with product name; "S3".

[0076] The second type unit emission calculation unit 18 calculates the amount of CO2 emission per unit amount for each of the multiple types of products by dividing the total CO2 emission for that type in the specified period by the total material amount, which is the sum of the total purchased raw material amount and the total factory waste of that type in the specified period based on the total product information. The calculation method for calculating the total CO2 emission for that type in the specified period is the same as that of the first type unit emission calculation unit 16.

[0077] In the above example, for type "A" in which the purchased amount of raw materials is greater than the product amount, as shown in FIG. 16A , the second type unit emission amount calculation unit 18 divides the total CO2 emission amount of "725.32" [tCO2] for type "A" in the specified period by the total material amount of "125" [tons] (=100+25), which is the sum of the total purchased amount of raw materials of type "A" in the specified period based on the total product information of "100" [tons] and the total factory waste of "25" [tons], to obtain a CO2 emission amount per unit amount of type "A" of "5.8" [tCO2 / ton] (≒725.32 / 125, rounded to two decimal places). Similarly, for type "B", the total CO2 emissions of 395.52 tCO2 are divided by the total material volume of 100 tons (=70+30) to obtain the CO2 emissions per unit volume of 3.96 tCO2 / ton (≒395.52 / 100, rounded to the nearest 3 decimal places), and for type "C", the total CO2 emissions of 842.13 tCO2 are divided by the total product volume of 130 tons (=100+30) to obtain the CO2 emissions per unit volume of 6.48 tCO2 / ton (≒842.13 / 130, rounded to the nearest 3 decimal places). For type "D", the total CO2 emissions of 359.61 tCO2 are divided by the total amount of material of 80 tonnes (=20+60) to obtain the amount of CO2 emissions per unit amount of 4.5 tCO2 / ton (≒359.61 / 80, rounded to two decimal places), and for type "E", the total CO2 emissions of 591.42 tCO2 are divided by the total amount of material of 80 tonnes (=30+50) to obtain the amount of CO2 emissions per unit amount of 7.39 tCO2 / ton (≒591.42 / 80, rounded to two decimal places).

[0078] The second product emission calculation unit 19 calculates the CO2 emission amount for the product (second CO2 emission amount) by multiplying the amount of material for the product based on the individual product information by the CO2 emission amount per unit amount for the type of product calculated by the second type unit emission calculation unit 18.

[0079] In the examples shown in Figures 4 to 6 above, as one example, for a product with product name; "S1", second product emission calculation unit 19 multiplies the material amount of the product with product name; "S1" based on the individual product information by the CO2 emission per unit amount of the product with product name; "A", which is determined by second type-based unit emission calculation unit 18, of "5.8" [tCO2 / ton], as shown in Figure 16B. In another example, for a product with the product name; "S3", as shown in FIG. 15B, the first product emission calculation unit 17 multiplies the material amount of the product with the product name; "S3", based on the individual product information, by the CO2 emission per unit amount of the product with the product name; "S3", which is determined by the second type unit emission calculation unit 18, that is, "4.5" [tCO2 / ton], to which the product with the product name; "S3", belongs, to obtain a CO2 emission amount of "9" [tCO2] (=2×4.5).

[0080] The control processing unit 1, input unit 2, output unit 3, IF unit 4 and storage unit 5 in the carbon dioxide emission calculation device 1000 as an example of a carbon dioxide emission calculation system can be configured by, for example, a desktop computer, a notebook computer, etc. Of course, as described above, the carbon dioxide emission calculation system may be configured by a plurality of computers connected to each other so as to be able to communicate with each other.

[0081] Next, the operation of this embodiment will be described below. Fig. 17 is a flow chart showing the operation of the carbon dioxide emission amount calculation system.

[0082] When the carbon dioxide emission calculation device 1000 configured as described above is powered on, it initializes the necessary parts and starts its operation. By executing the control processing program, the control processing unit 1 is functionally configured with a control unit 11, a unit emission amount calculation unit 12, a total compensation amount emission calculation unit 13, an allocation processing unit 14, a rotational chip amount calculation unit 15, a first type unit emission amount calculation unit 16, a first product emission amount calculation unit 17, a second type unit emission amount calculation unit 18, and a second product emission amount calculation unit 19, and the unit emission amount calculation unit 12 is functionally configured with a total excess amount calculation unit 121, a total excess amount emission calculation unit 122, and a basic unit calculation unit 123.

[0083] For example, when an operator (user) issues an instruction to start calculation from the input unit 2, in Figure 17, the carbon dioxide emission calculation device 1000 first calculates, by the total excess amount calculation unit 121 in the unit emission calculation unit 12 of the control processing unit 1, the total excess amount of a product of a type for which the amount of purchased raw materials is greater than the amount of product among multiple types of products, and calculates the total excess amount for the type for which the amount of purchased raw materials is greater than the amount of product (S1).

[0084] Next, the carbon dioxide emission calculation device 1000 calculates, by the total excess amount emission calculation unit 122 in the unit emission calculation unit 12 of the control processing unit 1, a total excess amount for a product of the type in which the purchased raw material amount is greater than the product amount among the multiple types of the product, and calculates the total excess amount as CO2 emission for the type in which the purchased raw material amount is greater than the product amount (S2).

[0085] Next, the carbon dioxide emission calculation device 1000 calculates the CO2 emission per unit amount in the excess amount as the CO2 emission per unit amount in the compensation amount by dividing the total excess amount CO2 emission calculated by the total excess amount emission calculation unit 122 in process S2 by the total excess amount calculated by the total excess amount calculation unit 121 in process S1 using the basic unit calculation unit 123 in the unit emission amount calculation unit 12 of the control processing unit 1 (S3).

[0086] Next, the carbon dioxide emission calculation device 1000, by the total compensation amount emission calculation unit 13 of the control processing unit 1, calculates the total compensation amount for each type of product for which the amount of purchased raw materials is less than the amount of product among the multiple types of products, calculates the CO2 emission amount for this calculated total compensation amount for each type of product, and calculates the total compensation amount CO2 emission for each type for which the amount of purchased raw materials is less than the amount of product (S4).

[0087] Next, the carbon dioxide emission calculation device 1000 calculates the unallocated CO2 emission amount using the allocation processing unit 14 of the control processing unit 1, and allocates the unallocated CO2 emission amount to each of the multiple types in an allocation amount based on a predetermined allocation ratio (for example, the ratio of product amounts or the ratio of purchased raw material amounts) (S5).

[0088] Next, the carbon dioxide emission amount calculation device 1000 determines the total amount of rotational chips of each of the multiple types of products by the rotational chip amount calculation unit 15 of the control processing unit 1 (S6).

[0089] Next, the carbon dioxide emission calculation device 1000 calculates, using the first type unit emission calculation unit 16 of the control processing unit 1, the CO2 emission amount per unit amount for each of the multiple types of the product on a product amount basis (product amount standard) (S7).

[0090] Next, the carbon dioxide emission calculation device 1000 determines the CO2 emission (first CO2 emission) for a specific product on a product volume basis (based on product volume) for the specific product by the first product emission calculation unit 17 of the control processing unit 1 (S8). The specific product may be input and specified by the operator from the input unit 2, for example, or may be each product included in the individual product information, for example.

[0091] Next, the carbon dioxide emission calculation device 1000 calculates the amount of CO2 emission per unit amount for each of the multiple types of the product on a material amount basis (material amount standard) using the second type unit emission calculation unit 18 of the control processing unit 1 (S9).

[0092] Next, the carbon dioxide emission calculation device 1000 calculates the CO2 emission (second CO2 emission) for a predetermined product on a material amount basis (material amount standard) for the predetermined product by the second product emission calculation unit 19 of the control processing unit 1 (S10). The predetermined product may be input and specified by the operator from the input unit 2, for example, as in process S8, or may be each product included in the individual product information, for example.

[0093] Then, the carbon dioxide emission calculation device 1000 causes the control unit 11 of the control processing unit 1 to output the calculation results obtained by the above-mentioned calculation processes S1 to S10 to the output unit 3 (S11), and ends this process. Note that the control unit 11 may output the calculation results to an external device via the IF unit 4 as necessary.

[0094] As described above, the carbon dioxide emission calculation system (one example of a carbon dioxide emission calculation device) 1000 in the embodiment, and the carbon dioxide emission calculation method and carbon dioxide emission calculation program implemented therein can calculate the CO2 emission even when viewed macroscopically from the viewpoint of each product type (each product type). In other words, if the multiple types of products include a type in which the purchased raw material amount and the product amount do not match, the excess amount is temporarily turned into turning scrap and used as a compensation amount in the manufacture of the product. In such a case, for a type in which the amount of purchased raw materials is greater than the amount of product, the above-mentioned macroscopic understanding is possible by subtracting the CO2 emission amount in the excess amount from the CO2 emission amount in the purchased raw materials, and for a type in which the amount of purchased raw materials is less than the amount of product, the above-mentioned macroscopic understanding is possible by incorporating the CO2 emission amount in the compensation amount into the CO2 emission amount in the purchased raw materials, and when incorporating, the above-mentioned carbon dioxide emission calculation system obtains the CO2 emission amount per unit amount in the excess amount as the CO2 emission amount per unit amount in the compensation amount, making it possible to obtain the CO2 emission amount in the compensation amount, so that the above-mentioned macroscopic understanding can be realized even for a type in which the amount of purchased raw materials is less than the amount of product. The above-mentioned carbon dioxide emission calculation system (carbon dioxide emission calculation device) 1000, carbon dioxide emission calculation method, and carbon dioxide emission calculation program can realize the above-mentioned macroscopic understanding on a type-by-type basis even in a factory capable of manufacturing multiple types of products.

[0095] The carbon dioxide emission calculation system (carbon dioxide emission calculation device) 1000, carbon dioxide emission calculation method, and carbon dioxide emission calculation program can calculate the CO2 emission in the total compensation amount over a specified period for a type of product in which the purchased raw materials amount is less than the product amount among multiple types of products.

[0096] The carbon dioxide emission calculation system (carbon dioxide emission calculation device) 1000, the carbon dioxide emission calculation method, and the carbon dioxide emission calculation program can allocate unallocated CO2 emission amounts when the total excess CO2 emission amount does not match the total compensation CO2 emission amount, and can allocate the total amount of CO2 emission amounts related to raw materials in a specified period. The amount of CO2 emission amounts that cannot be reused and are discarded or lost are also allocated.

[0097] The carbon dioxide emission calculation system (carbon dioxide emission calculation device) 1000, the carbon dioxide emission calculation method, and the carbon dioxide emission calculation program can calculate the amount of CO2 emission per unit amount for each type on a product volume basis (product volume standard), and can calculate the amount of CO2 emission for a product on a product volume basis. Because it is based on product volume, it is possible to calculate the CO2 emission for a product even if the amount of material for each product is unknown. When the type and product volume of a product are the same, the CO2 emission from the material (purchased raw materials + factory scraps (supplementary amount of factory scraps)) seen from the product is the same, so by calculating the CO2 emission for a product on a product volume basis, it is possible to prevent the effect of yield differences between products on the CO2 emission from the material.

[0098] The carbon dioxide emission calculation system (carbon dioxide emission calculation device) 1000, the carbon dioxide emission calculation method, and the carbon dioxide emission calculation program can calculate the amount of CO2 emission per unit amount for each type on a material amount basis (material amount standard), and can calculate the CO2 emission amount for a product on a material amount basis. Even if the type and amount of a product are the same, the amount of material for the product depends on the yield of the product, so the amount of CO2 emissions for the amount of material also differs. Therefore, the difference in yield for each product can be expressed as the difference in CO2 emissions for the material.

[0099] In order to express the present invention, the present invention has been described adequately and sufficiently through the embodiments with reference to the drawings in the above description, but it should be recognized that those skilled in the art can easily change and / or improve the above-mentioned embodiments. Therefore, unless the changes or improvements made by those skilled in the art are at a level that departs from the scope of the claims described in the claims, the changes or improvements are interpreted as being included in the scope of the claims. [Explanation of symbols]

[0100] 1000 Carbon dioxide emission calculation system (one example of a carbon dioxide emission calculation device) 1 Control processing section 2 Input section 3 Output section 4. Interface section (IF section) 5 Storage section 11 Control section 12 Unit discharge amount calculation section 13 Total compensation amount discharge calculation unit 14 Allocation processing unit 15 Rotational chip amount calculation unit 16 First type unit emission amount calculation section 17 1st product emissions calculation section 18 Second type unit emission amount calculation section 19 Second product emissions calculation section 19 51 Total product information storage section 52 Unit emission amount information storage section 53 Individual product information storage section 121 Total excess amount calculation section 122 Total excess emissions calculation section 123 Basic unit calculation section

Claims

1. In a factory capable of manufacturing multiple types of products that are manufactured through multiple processes from raw materials, ２ A carbon dioxide emission calculation system for calculating an emission amount, In a given period, the amount of purchased raw materials and the amount of finished products match, and the factory scraps generated by the implementation of the process are reused as turned waste in the manufacture of the products, and the amount of turned waste is considered to be a certain amount if the amount that cannot be reused is ignored. The plurality of types includes a type in which the purchased raw material amount and the product amount are inconsistent, When the amount of purchased raw materials is greater than the amount of product, the amount of CO per unit of the amount of purchased raw materials that exceeds the amount of product ２ The CO emissions per unit amount of the compensation amount that compensates for the shortage of the purchased raw material amount with the factory waste when the purchased raw material amount is less than the product amount. ２ A unit emission amount calculation unit is provided to calculate the emission amount. Carbon dioxide emissions calculation system.

2. a product information storage unit that stores, for each of the plurality of types, a total purchased raw material amount, which is a total amount of purchased raw materials, a total factory waste amount, which is a total amount of factory waste, and a total product amount, which is a total amount of product, as total product information in association with the type; For each of the multiple types, the amount of CO per unit amount of purchased raw materials for the product of that type ２ a unit discharge information storage unit that stores the discharge amount as raw material unit discharge amount information in association with the type of the raw material, The unit discharge amount calculation unit is a total excess amount calculation unit that calculates, for a type among the plurality of types in which the amount of purchased raw materials is greater than the amount of product, a total excess amount that is a total amount of excess amounts of the products of that type during the specified period based on the total product information, and calculates a total excess amount as the sum of the total excess amounts calculated for the types in which the amount of purchased raw materials is greater than the amount of product; Among the multiple types, for a type in which the purchased raw material amount is greater than the product amount, a total excess amount, which is the total amount of excess amounts in the products of that type during the specified period, is calculated based on the total product information, and the CO ２ The amount of CO emitted is calculated, and the total excess amount is calculated for the types in which the amount of purchased raw materials is greater than the amount of products. ２ Total excess CO emissions ２ A total excess emission amount calculation unit for calculating an emission amount; The total excess amount CO calculated by the total excess amount emission calculation unit ２ The CO emission per unit amount in the excess amount is calculated by dividing the total excess amount calculated by the total excess amount calculation unit. ２ The emission amount is calculated by dividing the total amount of CO ２ A basic unit calculation unit for calculating an emission amount, The carbon dioxide emission calculation system according to claim 1 .

3. a product information storage unit that stores, for each of the plurality of types, a total purchased raw material amount, which is a total amount of purchased raw materials, a total factory waste amount, which is a total amount of factory waste, and a total product amount, which is a total amount of product, as total product information in association with the type; Among the plurality of types, for a type in which the purchased raw material amount is less than the product amount, a total compensation amount, which is a total amount of compensation amounts for the products of the type in the predetermined period, is calculated based on the total product information, and the calculated total compensation amount is multiplied by the unit emission amount per unit amount in the compensation amount calculated by the unit emission amount calculation unit. ２ The total compensation amount calculated by multiplying the CO ２ A compensation amount discharge calculation unit is further provided to calculate a discharge amount. The carbon dioxide emission calculation system according to claim 1 .

4. Among the plurality of types, for a type in which the purchased raw material amount is less than the product amount, a total compensation amount, which is a total amount of compensation amounts for the products of the type in the predetermined period, is calculated based on the total product information, and the calculated total compensation amount is multiplied by the unit emission amount per unit amount in the compensation amount calculated by the unit emission amount calculation unit. ２ The total compensation amount calculated by multiplying the CO ２ The amount of CO emissions is calculated for the total compensation amount calculated for the type in which the amount of purchased raw materials is less than the amount of the product. ２ The total amount of CO emissions is the total compensation amount. ２ A total compensation amount discharge calculation unit for calculating a discharge amount; The total excess amount CO calculated by the total excess amount emission calculation unit ２ The total compensation amount CO calculated by the total compensation amount discharge calculation unit from the discharge amount ２ By subtracting the emissions, the unallocated CO ２ The amount of unallocated CO ２ and an allocation processing unit that allocates the emission amount to each of the plurality of types. The carbon dioxide emission calculation system according to claim 2 .

5. The unit emission information storage unit further stores information on the amount of CO generated when the factory scrap is reused as the rotation scrap in the manufacture of the product of the type. ２ In terms of emissions, the amount of CO per unit amount of the turned chips ２ The discharge amount is stored as rotational chip unit discharge amount information in association with the type. a rotating chip amount calculation unit for calculating a total amount of rotating chips of each of the plurality of types; For each of the plurality of types, the total CO ２ The amount of CO emissions per unit amount of the type is calculated by dividing the amount of CO emissions by the total amount of products of the type during the specified period based on the total product information. ２ A first type unit emission amount calculation unit for calculating an emission amount is further provided, The rotating chip amount calculation unit is When the type is a type in which the amount of purchased raw materials is greater than the amount of products, the total amount of turned waste of the type is calculated by taking the total amount of factory waste of the type based on the total product information as the total amount of turned waste of the type; If the type is a type for which the amount of purchased raw materials is less than the amount of product, the total amount of rotational scrap of the type is calculated by subtracting the total supplemental scrap of the type from the total factory scrap of the type based on the total product information; The first type unit emission amount calculation unit is In the case where the amount of purchased raw materials is greater than the amount of the product, the total excess amount of the product is calculated by subtracting the total amount of purchased raw materials of the product based on the total product information from the total amount of purchased raw materials of the product based on the raw material unit emission information. ２ The first multiplication result obtained by multiplying the amount of rotating scraps of the type calculated by the rotating scrap amount calculation unit is multiplied by the amount of rotating scraps per unit amount of the type of rotating scraps based on the rotating scrap unit amount of scraps information. ２ The sum of the second multiplication result obtained by multiplying the emission product and the allocation amount allocated to the type by the allocation processing unit is calculated as the total CO ２ Calculate the amount of emissions, In the case where the amount of purchased raw materials is less than the amount of the product, the total amount of purchased raw materials of the type based on the total product information is multiplied by the amount of CO per unit amount of purchased raw materials of the type of product based on the raw material unit emission information. ２ The third multiplication result obtained by multiplying the CO emission amount by the total compensation amount of the type calculated by the total compensation amount emission calculation unit ２ The amount of rotating scraps of the type calculated by the rotating scrap amount calculation unit is calculated based on the rotating scrap unit amount information. ２ The sum of the fourth multiplication result obtained by multiplying the emission product and the allocation amount allocated to the type by the allocation processing unit is calculated as the total CO ２ Calculate the amount of emissions, The carbon dioxide emission calculation system according to claim 4.

6. an individual product information storage unit that stores the amount of the product manufactured during the predetermined period as individual product information; The amount of the product based on the individual product information is calculated by the first type unit emission amount calculation unit. ２ By multiplying the CO emissions of the product, ２ and a first product discharge amount calculation unit for calculating a discharge amount. The carbon dioxide emission calculation system according to claim 5 .

7. The unit emission information storage unit further stores information on the amount of CO generated when the factory scrap is reused as the rotation scrap in the manufacture of the product of the type. ２ In terms of emissions, the amount of CO per unit amount of the turned chips ２ The discharge amount is stored as rotational chip unit discharge amount information in association with the type. a rotating chip amount calculation unit for calculating a total amount of rotating chips of each of the plurality of types; For each of the plurality of types, the total CO ２ The amount of CO emissions per unit amount of the type is calculated by dividing the amount of CO emissions by the total amount of materials, which is the sum of the total amount of purchased raw materials and total factory waste of the type during the specified period based on the total product information. ２ A second type unit emission amount calculation unit for calculating an emission amount is further provided, The rotational chip amount calculation unit is When the type is a type in which the amount of purchased raw materials is greater than the amount of products, the total amount of turned waste of the type is calculated by taking the total amount of factory waste of the type based on the total product information as the total amount of turned waste of the type; If the type is a type for which the amount of purchased raw materials is less than the amount of product, the total amount of rotational scrap of the type is calculated by subtracting the total supplemental scrap of the type from the total factory scrap of the type based on the total product information; The second type unit emission amount calculation unit is In the case where the amount of purchased raw materials is greater than the amount of the product, the total excess amount of the product is calculated by subtracting the total amount of purchased raw materials of the product based on the total product information from the total amount of purchased raw materials of the product based on the raw material unit emission information. ２ The first multiplication result obtained by multiplying the amount of rotating scraps of the type calculated by the rotating scrap amount calculation unit is multiplied by the amount of rotating scraps per unit amount of rotating scraps of the type calculated by the rotating scrap amount calculation unit. ２ The sum of the second multiplication result obtained by multiplying the emission product and the allocation amount allocated to the type by the allocation processing unit is calculated as the total CO ２ Calculate the amount of emissions, In the case where the amount of purchased raw materials is less than the amount of the product, the total amount of purchased raw materials of the type based on the total product information is multiplied by the amount of CO per unit amount of purchased raw materials of the type of product based on the raw material unit emission information. ２ The third multiplication result obtained by multiplying the CO emission amount by the total compensation amount of the type calculated by the total compensation amount emission calculation unit ２ The amount of rotating scraps of the type calculated by the rotating scrap amount calculation unit is calculated based on the rotating scrap unit amount information. ２ The sum of the fourth multiplication result obtained by multiplying the emission product and the allocation amount allocated to the type by the allocation processing unit is calculated as the total CO ２ Calculate the amount of emissions, The carbon dioxide emission calculation system according to claim 4.

8. an individual product information storage unit that stores the amount of material for the product manufactured during the predetermined period as individual product information; The amount of material of the product based on the individual product information is calculated by the second type unit emission amount calculation unit. ２ By multiplying the CO emissions of the product, ２ and a second product discharge amount calculation unit for calculating a discharge amount. The carbon dioxide emission calculation system according to claim 7.

9. In a factory capable of manufacturing multiple types of products that are manufactured through multiple processes from raw materials, ２ A carbon dioxide emission calculation method for calculating an emission amount, comprising the steps of: In a given period, the amount of purchased raw materials and the amount of finished products match, and the factory scraps generated by the implementation of the process are reused as turned waste in the manufacture of the products, and the amount of turned waste is considered to be a certain amount if the amount that cannot be reused is ignored. The plurality of types includes a type in which the purchased raw material amount and the product amount are inconsistent, When the amount of purchased raw materials is greater than the amount of product, the amount of CO per unit of the amount of purchased raw materials that exceeds the amount of product ２ The CO emissions per unit amount of the compensation amount that compensates for the shortage of the purchased raw material amount with the factory waste when the purchased raw material amount is less than the product amount. ２ Calculate the amount of emissions, Carbon dioxide emissions calculation method.

10. In a factory capable of manufacturing multiple types of products that are manufactured through multiple processes from raw materials, ２ A carbon dioxide emission calculation program for determining an amount of emission, the carbon dioxide emission calculation program causing a computer to function as the carbon dioxide emission calculation system according to any one of claims 1 to 8.

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