Hydrogen traceability data management system and management method

Abstract

The objective of the present invention is to enable hydrogen traceability data to be managed efficiently using a small volume of data. This traceability management system for hydrogen supplied via a plurality of histories includes: a history information accepting unit for accepting first history information associated with intentional changes to the hydrogen history and second history information associated with unintentional changes to the hydrogen history; a storage device for storing history data including the first history information, the second history information, and an ID; and a data management unit for controlling the generation and rewriting of the history data. The data management unit generates history data including a newly issued ID if the first history information is changed, and rewrites the history data while maintaining the ID if the second history information is changed.

Description

Hydrogen traceability data management system and management method

[0001] This disclosure relates to techniques for managing hydrogen traceability data.

[0002] Patent Document 1 discloses a technique for identifying the source of carbon, for example, industrial, agricultural, or natural sources, by simultaneously measuring isotopes of carbon dioxide.

[0003] JP 2014-211451 A

[0004] Incidentally, in order to grasp the GHG (Greenhouse Gas) and CI (Carbon Intensity) of hydrogen, it is desirable to manage traceability data of hydrogen from the time of production.

[0005] However, hydrogen may be supplied via multiple provenance histories, and it is desirable to manage hydrogen traceability data, which may include various provenance information, efficiently and with a small data volume.

[0006] Therefore, an object of the present disclosure is to enable hydrogen traceability data to be managed efficiently and with a small data volume.

[0007] The hydrogen traceability data management system is a traceability data management system for hydrogen that is supplied via multiple histories, and includes a history information receiving unit that receives first history information associated with an intentional change in the hydrogen history and second history information associated with an unintentional change in the hydrogen history, a storage device that stores history data including the first history information, the second history information, and an ID, and a data management unit that controls the generation and rewriting of the history data, wherein the data management unit generates the history data including the newly issued ID when the first history information is changed, and rewrites the history data while maintaining the ID when the second history information is changed.

[0008] Furthermore, the hydrogen traceability data management method is a method for managing traceability data for hydrogen that is supplied via multiple histories, in which a computer receives first history information associated with an intentional change in the hydrogen history and second history information associated with an unintentional change in the hydrogen history, and when the first history information is changed, stores the history data including the newly issued ID in a storage device, and when the second history information is changed, executes a process to rewrite the history data stored in the storage device while maintaining the ID.

[0009] According to the present disclosure, hydrogen traceability data can be managed efficiently and with a small data volume.

[0010] FIG. 1 is an explanatory diagram showing an example of a hydrogen supply route. FIG. 2 is a block diagram showing a hydrogen traceability data management system. FIG. 3 is a diagram showing an example of history data. FIG. 4 is a diagram showing an example of activity amount data. FIG. 5 is a flowchart showing an example of processing by a processor in a data management device. FIG. 6 is an explanatory diagram showing the relationship between an example of hydrogen history and history data. FIG. 7 is a diagram showing an example of history data. FIG. 8 is a diagram showing another example of history data. FIG. 9 is a diagram showing yet another example of history data. FIG. 10 is a diagram showing an example of activity amount data. FIG. 11 is a diagram showing an example of activity amount data.

[0011] [Embodiment] Hereinafter, a hydrogen traceability data management system and management method according to an embodiment will be described. Fig. 1 is an explanatory diagram showing an example of a hydrogen supply route.

[0012] As shown in the figure, hydrogen produced at a terminal 100 is transported to a terminal 120 by a transport ship 110 .

[0013] The terminal 100 includes a production facility 102 and a hydrogen storage facility 104. The terminal 100 is located, for example, on land.

[0014] The production facility 102 is a facility that produces hydrogen. Hydrogen can be produced by electrolysis, which involves electrolyzing water, or by reforming coal or natural gas. In other words, the source of hydrogen is assumed to be either electrolysis, coal, or natural gas. Hydrogen can also be produced from ammonia, in which case the source of hydrogen is ammonia. The coal can be lignite.

[0015] The storage facility 104 is a facility for storing hydrogen. Hydrogen is stored by liquefying it at low temperatures, compressing it at high pressure, or converting it into other storage materials. In any case, energy is consumed for cooling, compressing, or dehydrogenating the hydrogen.

[0016] The transport ship 110 has a storage facility 112 for storing hydrogen and travels on the sea. Storing hydrogen in the storage facility 112 consumes energy, similar to the storage facility 104. The transport ship 110 may also consume energy for its own travel. The energy source for the transport ship 110's travel may be fuel loaded solely for travel, or hydrogen stored in its own storage facility 112.

[0017] The transport ship 110 is an example of a transport device that transports hydrogen. The mechanism for transporting hydrogen may be a transport vehicle such as a railroad car or a tanker truck, or may be a transfer facility such as a pipeline.

[0018] The terminal 120 is equipped with a hydrogen storage facility 122. The hydrogen stored in the storage facility 122 of the terminal 120 is consumed at facilities near the terminal 120 or distributed to other hydrogen terminals. Storing hydrogen in the storage facility 122 consumes energy, similar to the storage facility 104.

[0019] As described above, hydrogen is supplied via production facilities, storage facilities and transportation devices.

[0020] For hydrogen traceability, it is desirable to identify the origin of hydrogen. Furthermore, as described above, hydrogen is supplied via multiple histories. The histories are individual processes that subdivide the route from the hydrogen production site to the supply site. By identifying multiple histories from the hydrogen production site to the supply site in a chain-like manner, the traceability of hydrogen present at the supply site can be understood. Hydrogen traceability may be understood as, for example, clarifying when, where, and by whom hydrogen was produced, and how it was supplied. Hydrogen traceability may also be considered to include information on how much hydrogen was produced and how much environmental value it has.

[0021] Furthermore, the amount of hydrogen may fluctuate, particularly decrease, during storage due to leakage, evaporation, etc. Therefore, it is desirable to grasp the fluctuation amount of hydrogen.

[0022] Furthermore, by specifying the origin of the hydrogen as well as the amount of consumption of each source, it is possible to determine the amount of greenhouse gas (GHG) emitted during production.

[0023] Furthermore, GHGs may be emitted at each stage of the hydrogen transport history along the supply route. For example, as described above, energy is consumed for storage at each of the storage facilities 104, 112, and 122, and GHGs may be emitted in proportion to the amount of energy consumed. Furthermore, energy may be consumed for transportation in a device for transporting hydrogen, such as the transport ship 110, and GHGs may be emitted in proportion to the amount of energy consumed. It is also possible that the energy source for transportation is hydrogen stored on the transport ship 110. Even in this case, if the hydrogen has a history of emitting GHGs, the GHGs corresponding to the amount of hydrogen consumed may be evaluated as the GHG emissions for transportation.

[0024] For this reason, it is also desirable to understand the GHGs emitted in the supply of hydrogen along the route from production to supply.

[0025] Most of the greenhouse gases emitted in the hydrogen supply route are CO ２ Therefore, greenhouse gas (GHG) emissions are CO ２ In the following description, greenhouse gas (GHG) emissions may be understood as CO ２ The explanation is based on the assumption that the emissions are

[0026] In order to grasp the traceability of hydrogen, the hydrogen traceability data management system 10 includes a data management device 20 and a data server 30. The hydrogen traceability data management system 10 is communicatively connected to terminal devices 60, 70, and 80. For example, data collected through the terminal devices 60, 70, and 80 is stored in the data server 30. The data management device 20 references the data collected in the data server 30, generates and updates traceability data, and manages traceability.

[0027] The terminal devices 60, 70, and 80 are terminal devices into which various information relating to the history of hydrogen at the base 100, the transport ship 110, and the base 120, fluctuations in hydrogen, or GHG emissions is input, and which transmit the input information to the traceability data management system 10. The terminal devices 60, 70, and 80 may be understood as elements outside the traceability data management system 10, or may be understood as elements of the traceability data management system 10.

[0028] For example, terminal device 60 is located within base 100 and accepts input of various information related to the history of hydrogen, fluctuations in hydrogen, or GHG emissions at base 100. Furthermore, for example, terminal device 70 is located within transport ship 110 and accepts input of various information related to the history of hydrogen, fluctuations in hydrogen, or GHG emissions at transport ship 110. Furthermore, for example, terminal device 80 is located within base 120 and accepts input of various information related to the history of hydrogen, fluctuations in hydrogen, or GHG emissions at base 120.

[0029] It is not essential that the terminal devices 60, 70, 80 be located within the base 100, 120 or the transport ship 110. For example, an input device for inputting various information at the base 100, 120 or the transport ship 110 may be located outside the base 100, 120 or the transport ship 110.

[0030] In addition, some of the information at the base 100, 120 or the transport ship 110 may be input via an input device located outside the base 100, 120 or the transport ship 110.

[0031] These input devices may be input devices for inputting data into the data management device 20 or the data server 30 .

[0032] The data management device 20, the data server 30, and the terminal devices 60, 70, and 80 are communicatively connected. For example, the data management device 20, the data server 30, and the terminal devices 60, 70, and 80 are communicatively connected via a communication network 12. As a result, various information input via the terminal devices 60, 70, and 80 is stored in the data server 30. Furthermore, the data management device 20 can generate and update traceability data suitable for managing traceability based on the various information stored in the data server 30.

[0033] The data server 30 may be distributed to multiple locations. For example, the data server that accumulates the various information from the terminal devices 60, 70, and 80 may be separate from the data server that stores the traceability data. Furthermore, the various information from the terminal devices 60, 70, and 80 and the traceability data may be stored in separate data servers, divided by region.

[0034] The data management device 20 and the data server 30 may be configured as a single computer. For example, the data server 30 may be a cloud server, and the functions of the data management device may be implemented in the cloud server.

[0035] The communication network 12 may be a wired or wireless network, or may be a combination of these. The communication network 12 may also be a public communication network or a communication network using dedicated lines.

[0036] FIG. 2 is a block diagram showing a hydrogen traceability data management system 10.

[0037] The hydrogen traceability data management system 10 includes a data management device 20 and a data server 30. The traceability data management system 10 is connected to terminal devices 60, 70, and 80 via a communication network 12. Note that the terminal devices 60, 70, and 80 may be connected to the traceability data management system 10 via another system, for example, a power management system at a power company.

[0038] The terminal devices 60, 70, 80 are devices that include, for example, a computer with a processor and memory, and a communication circuit.

[0039] A terminal device 60 disposed within the base 100 is connected to, for example, a production consumption sensor 61 , a storage consumption sensor 62 , a hydrogen quantity sensor 63 , and an input unit 64 .

[0040] The production consumption sensor 61 is, for example, a sensor that detects the consumption of production resources consumed when hydrogen is produced in the production facility 102 .

[0041] For example, when hydrogen is produced by electrolysis, the production resource may be electricity, and the amount of electricity consumed may be the amount of power consumed. In this case, the consumption sensor 61 is a power consumption meter. ２ If the emission coefficient is known, the amount of GHG emissions when the hydrogen is produced by electrolysis can be calculated.

[0042] Furthermore, for example, when hydrogen is produced by reforming coal or natural gas, the production resource is coal or natural gas, and the consumption amount is the amount of consumed coal or natural gas. In this case, the consumption amount sensor 61 may be a sensor that detects the weight of coal or a sensor that detects the weight or flow rate of natural gas. In these cases, the CO per unit consumption amount of coal or natural gas is ２ If the amount of GHG emissions is known, the amount of GHG emissions when hydrogen is produced from coal or natural gas can be calculated based on the amount of coal or natural gas consumed.

[0043] The storage consumption sensor 62 is a sensor that detects the consumption of storage resources consumed for storing hydrogen in the storage facility 104. For example, if hydrogen is cooled for storage, the consumption of storage resources is the amount of power consumed for cooling. In this case, the consumption sensor 62 may be a power consumption meter. The power consumption for storage and the CO2 of the power consumption are measured. ２ If the emission factor is known, the amount of GHG emissions when storing the hydrogen can be calculated.

[0044] The hydrogen amount sensor 63 is a sensor that detects the amount of hydrogen stored in the storage facility 104. The hydrogen amount sensor 63 may be a sensor that detects the liquid level of hydrogen liquefied by cooling, or a sensor that detects the flow rate when hydrogen is transferred to another container. There is a possibility that hydrogen may leak or volatilize during storage. By detecting the amount of hydrogen stored in the storage facility 104, the amount of change in hydrogen during storage can be determined.

[0045] The input unit 64 is a man-machine interface for the operator to input various information, and is, for example, a keyboard or other switch, a mouse, or a touch panel. The operator can input various information related to the history of hydrogen via the input unit 64. For example, new hydrogen production, loading, location, or owner can be input via the input unit 64. Changes to the loading, location, or owner of existing hydrogen are made by specifying an ID, which will be described later.

[0046] Note that loading and unloading of hydrogen refers to transferring produced hydrogen from a facility or device to another facility or device. For example, transferring hydrogen from storage facility 104 on base 100 to storage facility 112 on transport ship 110, and transferring hydrogen from storage facility 112 on transport ship 110 to storage facility 122 on base 120 are loading and unloading operations.

[0047] A terminal device 70 arranged inside the transport ship 110 is connected to, for example, a transport consumption sensor 71 , a hydrogen amount sensor 73 , and an input unit 74 .

[0048] The transportation consumption sensor 71 is, for example, a sensor that detects the consumption of transportation resources consumed for the navigation of the transport ship 110 and the storage of hydrogen on the transport ship 110. For example, the consumption sensor 71 may be a sensor that detects the amount of electricity consumed as transportation resources, or a sensor that detects the consumption of coal or natural gas. In either case, the consumption of the transportation resources is known, and the CO per unit consumption is calculated. ２ If the amount of GHG emissions from the transportation of hydrogen is known, the amount of GHG emissions from the transportation of hydrogen can be calculated based on the consumption amount of the transportation resource.

[0049] The hydrogen amount sensor 73, like the hydrogen amount sensor 63, is a sensor that detects the amount of hydrogen stored in the transport ship 110. By detecting the amount of hydrogen stored in the transport ship 110, the amount of fluctuation in hydrogen during storage in the transport ship 110 can be grasped.

[0050] The input unit 74 is a man-machine interface for an operator to input various information, similar to the input unit 64. For example, the operator can input various information related to the history of hydrogen, such as information related to the loading and unloading of hydrogen, via the input unit 74.

[0051] A terminal device 80 disposed within the base 120 is connected to, for example, a storage consumption sensor 82 , a hydrogen amount sensor 83 , and an input unit 84 .

[0052] The storage consumption sensor 82 is, for example, a sensor that detects the consumption of transportation resources consumed for storing hydrogen in the storage facility 122 of the base 120, similar to the consumption sensor 62 described above.

[0053] The hydrogen amount sensor 83 is a sensor that detects the amount of hydrogen stored in the storage facility 122, similar to the hydrogen amount sensor 63 described above.

[0054] The input unit 84 is a man-machine interface for an operator to input various information, similar to the input unit 64. For example, the operator can input various information related to the history of hydrogen, such as information related to the loading and unloading of hydrogen, via the input unit 84.

[0055] A terminal device 90 separate from the terminal devices 60, 70, and 80 may be connected to the traceability data management system 10. An input unit 94 is connected to the terminal device 90. Similar to the input unit 64, the input unit 94 is a man-machine interface for inputting information related to the history of hydrogen. The terminal device 90 does not need to be connected to a sensor for detecting hydrogen information. In other words, the terminal device 90 may be used solely as a device for receiving various information from an operator, rather than as a device for detecting history information. Such a terminal device 90 may be installed in a location separate from the facilities or equipment that handle hydrogen, such as the terminal 100, 120 or the transport ship 110. For example, it may be installed at a hydrogen trading management location. The operator can input various information related to the history of hydrogen, such as information related to hydrogen loading and unloading, the location of the hydrogen, or the owner of the hydrogen, via the input unit 94.

[0056] As described above, hydrogen is supplied through multiple histories at the terminals 100, 120 and the transport ship 110. The amount of activity is the amount that varies as hydrogen is handled in each of the multiple histories at the terminals 100, 120 and the transport ship 110. For example, the amount of resources consumed by storing or transporting hydrogen is an example of an amount of activity, and the amount of GHG emissions calculated based on the amount of resources consumed is also an example of an amount of activity.

[0057] Furthermore, information regarding the handling of hydrogen at the terminals 100, 120 and the transport ship 110 is referred to as history information. The history information may include hydrogen production information, hydrogen storage information, and hydrogen transfer information. The hydrogen production information may include information regarding the time of production, the place where hydrogen was produced, and the owner. The owner at the time of production is usually the manufacturer. The hydrogen storage information may include information regarding the time when hydrogen storage began, the storage location, and the owner. The hydrogen transfer information may include information regarding the time when hydrogen was received for transfer, the storage location, and the owner. If the above hydrogen production information, hydrogen storage information, and hydrogen transfer information are known when hydrogen is supplied, it becomes clear when, where, and by whom the hydrogen was produced, and what storage and transfer conditions the hydrogen underwent before being supplied. This ensures the traceability of hydrogen.

[0058] Furthermore, if the history information includes the amount of fluctuation in hydrogen, the amount of fluctuation in hydrogen is taken into consideration to ensure consistency between the amount of hydrogen produced and the amount of hydrogen supplied.

[0059] Furthermore, if the historical information includes the amount of GHG emissions from hydrogen, the accuracy of the amount of GHG emissions from the supplied hydrogen can be guaranteed.

[0060] The terminal devices 60 , 70 , and 80 transmit history information and activity amount information to the system 10 , and the terminal device 90 transmits history information to the system 10 .

[0061] The data server 30 is a computer including a processor 31 and a storage device 32. The processor 31 includes an arithmetic circuit. The storage device 32 is configured by a non-volatile storage device such as a hard disk drive (HDD) or a solid-state drive (SSD). The storage device 32 stores a hydrogen inventory database 33, a GHG database 34, collected data 32a, and linked data 35.

[0062] A storage device 32 and a communication device 39 are connected to the processor 31. The communication device 39 includes a communication circuit. The processor 31 is connected to the terminal devices 60, 70, 80, and 90 via the communication device 39, and data transmitted from the terminal devices 60, 70, 80, and 90 is stored in the storage device 32 as collected data 32a. The storage device 32 stores a hydrogen inventory database 33, a GHG database 34, and linked data 35. The hydrogen inventory database 33 includes history data 40. As described below, the history data 40 includes an ID, first history information 41, second history information 42, and initial state information 43. Therefore, the storage device 32 is an example of a storage device that stores history data 40 including the first history information 41, second history information 42, and ID. The linked data 35 is data for linking multiple history data 40. The history of the supplied hydrogen is understood by linking a plurality of pieces of history data 40 based on the linked data 35. The GHG database 34 includes activity amount data 50 indicating the amount of activity.

[0063] Furthermore, the system 10 receives the history information and activity amount information from the terminal devices 60, 70, and 80 via the communication device 39 of the database 33. Thus, the communication device 39 is an example of a history information receiving unit that receives the first history information 41 and the second history information 42.

[0064] After the history data 40 and the activity amount data 50 are generated, the collected data 32a may be kept stored or may be deleted.

[0065] The data management device 20 is configured by a computer including a processor 21 such as a CPU, a storage device 22, a communication device 29, and the like.

[0066] The processor 21 includes an arithmetic circuit. The processor 21 is communicably connected to the data server 30 via a communication device 29. The processor 21 is an example of a data management unit that controls the generation and rewriting of the history data 40 in the data server 30.

[0067] The storage device 22 is configured by a nonvolatile storage device such as a hard disk drive (HDD) or a solid-state drive (SSD), similar to the storage device 32. The storage device 22 stores, for example, a program 22a.

[0068] The program 22a describes the processing that the processor 21 performs to realize the data management function. Therefore, the data management processing is performed by the processor 21 executing the processing described in the program 22a. There may be one processor 21 or multiple processors 21. Multiple processors 21 may be incorporated into one computer. Multiple processors 21 may be incorporated into multiple computers, and the multiple computers may perform the data management processing in a distributed manner.

[0069] An input unit 27 and a display device 28 may be connected to the data management device 20. The input unit 27 is a man-machine interface for inputting various information and instructions to the data management device 20. The display device 28 is a device capable of displaying various information, such as history data 40 and activity amount data 50, and is, for example, a liquid crystal display device or an organic EL (Electro-Luminescence) display device.

[0070] FIG. 3 is a diagram showing an example of the history data 40. As shown in FIG.

[0071] The history data 40 includes first history information 41, second history information 42, and an ID. In this embodiment, the history data 40 includes a static field fs and a variable field fv. The static field is a range that includes items that are determined when the history data 40 is newly issued. Note that the items that are determined when the history data 40 is newly issued include not only items that are known when the history data 40 is newly issued, but also items that are determined to have a certain value when the history data 40 is newly issued but whose value becomes known after the history data 40 is newly issued, and therefore are filled in after the history data 40 is newly issued. The variable field is an item that can change after the history data 40 is newly issued.

[0072] In this embodiment, the static field fs includes an ID, first history information 41 , and initial state information 43 .

[0073] The ID is a code for identification and is written using, for example, numbers, letters, or a combination thereof. The ID may be any code that can be identified by a computer. The ID is used to identify the issued history data 40 and to distinguish it from one another.

[0074] The first history information 41 is information that is recorded in association with an intentional change in the history of hydrogen. More specifically, the first history information is information that is recorded when a person involved in the supply of hydrogen intentionally changes the handling of hydrogen. Note that a change includes a change from a non-existent state to a present state.

[0075] For example, new hydrogen production is a history of newly generating hydrogen history with the intention of producing hydrogen. Therefore, information related to new hydrogen production is an example of first history information 41. Information indicating new hydrogen production is an example of information received, for example, through the terminal device 60 at the time of hydrogen production. Furthermore, hydrogen loading and unloading is a history of transferring hydrogen from a storage facility at the source of transport to a transport device or facility, or conversely, transferring hydrogen from a transport device or facility to a storage facility at the destination of transport, with the intention of transporting the hydrogen. Therefore, information related to hydrogen loading and unloading is an example of first history information 41. Information related to hydrogen loading and unloading is an example of information received, for example, through the terminal devices 60, 70, and 80 at the time of hydrogen loading and unloading. Furthermore, a change in the owner of hydrogen is a history of changing the ownership of the hydrogen with the intention of transferring the hydrogen. Therefore, information related to a change in the owner of hydrogen is an example of first history information 41.

[0076] In order to record information related to new hydrogen production, information related to loading and unloading, and information related to changes in the owner of hydrogen, the first history information 41 may include, for example, items such as transaction date and time, transaction content, location, and owner. Information such as new registration indicating new hydrogen production, receipt or delivery indicating loading and unloading, owner change, or hydrogen consumption may be registered as the transaction content. The date and time of the transaction content is registered as the transaction date and time. The location of the hydrogen after the transaction occurs is registered as the location. The owner after the transaction occurs is registered as the owner. The information included in the above first history information 41 is an example and is not limited to the above example. Some items may be omitted from the first history information 41, and other items may be added.

[0077] The initial state information 43 is information indicating the initial state of hydrogen that is determined when the history data 40 is newly issued. As will be described later, when the history data 40 is newly issued, a new ID is also issued, so the initial state information 43 is information at the time the ID is issued. For example, the initial state information 43 includes the amount of hydrogen and the environmental value. The amount of hydrogen indicates the amount of hydrogen at the time the history data 40 is newly issued. For example, the amount of hydrogen is the amount of hydrogen produced at the time of new production, the amount of hydrogen at the time of loading and unloading, or the amount of hydrogen at the time of ownership change. The environmental value is the environmental value at the time the history data 40 is newly issued, and the environmental value is, for example, the amount of GHG emissions caused by hydrogen, for example, CO ２ It may be evaluated by CO emissions. ２ The discharge amount may be registered as the discharge amount per unit amount of registered hydrogen, or may be registered as the discharge amount relative to the total amount of registered hydrogen. Note that although the initial state information 43 is a value that should already be determined when the history data 40 is newly issued, there may be a delay in determining the information for its calculation, and as a result, the initial state information 43 may be supplemented after the history data 40 is newly issued.

[0078] The variable field fv is not determined when the history data 40 is newly issued, and therefore has a range that includes items that can be changed after the history data 40 is newly issued.

[0079] In this embodiment, the variable field fv includes second history information 42. The second history information 42 is information associated with unintentional changes in the history of hydrogen. The second history information 42 may be information indicating conditions that occur incidentally in association with handling of hydrogen.

[0080] In this embodiment, the second history information 42 includes the amount of fluctuation in hydrogen and the amount of fluctuation in environmental value, and may also include other information related to hydrogen. The information related to hydrogen other than the amount of fluctuation in hydrogen and the amount of fluctuation in environmental value may include, for example, the temperature related to hydrogen storage, the pressure related to hydrogen storage, or the purity of hydrogen.

[0081] The hydrogen fluctuation amount is the amount of fluctuation of hydrogen that occurs during the history period specified by the first history information 41. In other words, while hydrogen is being stored, the amount of stored hydrogen may fluctuate due to leakage, evaporation, etc. The hydrogen fluctuation amount indicates the amount of fluctuation of hydrogen during the history period.

[0082] The amount of change in environmental value is the amount of change in environmental value that occurs during a historical period. As described above, the environmental value is calculated based on GHG, for example, CO ２ For example, the amount of change in environmental value may be evaluated by the amount of CO emissions during the historical period. ２ For example, during the storage period of hydrogen, energy such as electricity is consumed for storage. Furthermore, during the transportation of hydrogen, energy is consumed as a power source for transportation. The CO emissions for generating these energies are ２ The amount of emissions will be registered as a change in environmental value.

[0083] The temperature is, for example, the temperature of the facility that stores hydrogen, i.e., the storage temperature. The information included in the second history information 42 is an example and is not limited to the above example. Some items may be omitted from the second history information 42, and other items may be added.

[0084] In the template of the history data 40, each of the above items is left blank and set to "null." When new history data 40 is issued, an ID is assigned and each item of the first history information 41 and the initial state information 43 is registered. Note that the initial state information 43 may be supplemented after new issuance. Then, after new issuance of the history data 40, the second history information 42 becomes known, and after the second history information 42 is determined, each item of the second history information 42 is registered.

[0085] The history data 40 may be stored in one table, or may be stored in a plurality of tables with the ID as a primary key.

[0086] It should be noted that the amount of change in hydrogen, the amount of change in environmental value, and the temperature related to the second history information 42 may change over time. Therefore, information on changes in the amount of change in hydrogen, the amount of change in environmental value, and the temperature related to the second history information 42 may be saved as log information. The log information may be omitted or may be deleted after it is generated.

[0087] FIG. 4 is a diagram showing an example of the activity amount data 50.

[0088] The activity amount data 50 is data that records the amount of activity that fluctuates in association with the handling of hydrogen during each historical period.

[0089] In this embodiment, the activity amount data includes an org ID as an initial ID, a current ID, a target date and time, and a breakdown of GHG emissions, including GHG emissions from electricity, GHG emissions from coal, and GHG emissions from natural gas. The GHG emissions are an example of GHG generation information associated with the history of hydrogen. Furthermore, the breakdown of GHG generation information, including GHG emissions from electricity, GHG emissions from coal, and GHG emissions from natural gas, are also examples of GHG generation information associated with the history of hydrogen. Information related to the breakdown of the GHG generation information may be omitted, and the total amount of GHG emitted may be recorded as the GHG generation information.

[0090] The activity amount data 50 is data that records, for example, activity amounts that fluctuate with the handling of hydrogen during one historical period. In this embodiment, the activity amount data includes an org ID as an initial ID, a current ID, a target date and time, and GHG emissions as an activity amount. The GHG emissions may be divided into GHG emissions from electricity, GHG emissions from coal, and GHG emissions from natural gas. Note that the handling of hydrogen refers to, for example, handling related to the maintenance and supply of hydrogen, such as the storage or transportation of hydrogen. Therefore, the activity amount may be information about greenhouse gas emissions resulting from the storage or transportation of hydrogen.

[0091] The activity amount data 50 is associated with the ID of the history from which the activity amount was generated by associating the data with an ID in the terminal device 60, 70, or 80 that is the source of the data, or by associating an ID based on the location and time of data generation, etc. The org ID indicates the ID associated with the history when the activity amount data 50 was newly created. That is, the activity amount data 50 indicates, for example, the activity amount for one history period. By recording the org ID corresponding to the first history in the activity amount data 50, it is possible to identify which history the activity amount corresponds to. The activity amount data 50 may be data associated with multiple history periods. In this case, the activity amount data 50 may preferably store information related to the activity amount so that each history can be distinguished.

[0092] The current ID is an ID associated with the current hydrogen linked to the activity amount data 50. In other words, hydrogen is supplied through each of the above-mentioned histories. Each time the hydrogen passes through a new history, the activity amount data 50 is linked to a new history by the current ID. As a result, the activity amount data 50 for each history that the hydrogen has passed through is associated with the final history of the supply route.

[0093] The target date and time indicates the target period for GHG emissions.

[0094] The GHG emissions from electricity, coal, and natural gas as activity amounts indicate the respective emissions at the target date and time. As described above, if the GHG emissions per unit consumption of a manufacturing resource are known, the GHG emissions can be calculated based on the actual consumption of the manufacturing resource. Therefore, the GHG generation information may be the consumption amount of the manufacturing resource. As described above, the activity amount does not need to be divided by manufacturing resource.

[0095] The activity amount data 50 may be generated and updated sequentially asynchronously with the history data 40 based on the collected data 32a.

[0096] FIG. 5 is a flowchart showing an example of processing by the processor 21 in the data management device 20.

[0097] In step S1, history information is accepted. As described above, the history information is collected from the terminal devices 60, 70, 80, and 90 in the data server 30 and stored as collected data 32a. The data management device 20 refers to the collected data 32a stored in the data server 30, and the history information is accepted if there is a change in the history information in the collected data 32a. The timing at which the data management device 20 refers to the collected data 32a may be at predetermined regular intervals, or may be when the data server 30 notifies the user of a change in the history information in the collected data 32a. Once the history information is accepted in the data management device 20, the process proceeds to step S2.

[0098] In step S2, it is determined whether or not the first history information 41 has been changed. As described above, the first history information 41 includes information related to transaction details. Therefore, if information such as a new registration indicating new hydrogen production, receipt or delivery indicating loading and unloading, a change in owner, or hydrogen consumption has been registered, it is determined that the first history information 41 has been changed. If it is determined in step S2 that the first history information 41 has been changed, the process proceeds to step S3, and if it is determined that the first history information 41 has not been changed, the process proceeds to step S5.

[0099] In step S3, the data management device 20 generates history data 40 including the newly issued ID. The generated history data 40 is stored in the storage device 32 of the data server 30. In addition to the newly issued ID, the history data 40 may also register the transaction date and time, transaction details, location, and owner. Note that if the change in history information is not due to new hydrogen production but to a mid-stream modification of the hydrogen history, it is advisable to register in the linkage data 35 the relationship linking the original ID and the newly issued ID.

[0100] In the next step S4, initial state information 43 is registered in the history data 40. For example, if the change in the first history information 41 in step S3 is to new production, the amount of hydrogen in the initial state information 43 may be the amount of hydrogen produced at the time of new production, and the GHG emissions may be the amount of GHG emissions during hydrogen production. The GHG emissions during hydrogen production are calculated based on the amount of production resources consumed acquired by the terminal device 60, for example. Therefore, the amount of GHG emissions may be replenished after the history data 40 is issued and the amount of production resources consumed is determined.

[0101] Furthermore, for example, if the change in the first history information 41 in step S3 is receipt or delivery indicating loading and unloading, a change in owner, or consumption of hydrogen, the amount of hydrogen in the initial state information 43 may be the amount of hydrogen produced at the time of the change in the first history information 41, and the GHG emission amount may be the amount of GHG emission at the time of the change. The amount of hydrogen at the time of the change in the first history information 41 can be obtained by subtracting the amount of hydrogen fluctuation registered as the second history information 42 from the amount of hydrogen registered as the initial state information 43 in the history data 40 before the change. Furthermore, the amount of hydrogen at the time of the change in the first history information 41 can be obtained by subtracting the emission amount corresponding to the GHG emission amount registered as the second history information 42 from the GHG emission amount registered as the initial state information 43 in the history data 40 before the change.

[0102] The GHG emissions may be the GHG emissions for the entire hydrogen in question, or the GHG emissions per unit hydrogen, but when calculating GHG emissions between two hydrogen sources, the calculation is performed using a unified method.

[0103] After step S4 and when it is determined in step S2 that there is no change in the first history information 41, the process proceeds to step S5.

[0104] In step S5, it is determined whether or not there is a change in the amount of hydrogen in the second history information 42. As described above, the second history information 42 includes the amount of hydrogen fluctuation. Therefore, if a new amount of hydrogen fluctuation is registered, it is determined that the second history information 42 related to the amount of hydrogen fluctuation has changed, and the process proceeds to the next step S6. If it is determined that the second history information 42 related to the amount of hydrogen fluctuation has not changed, the process proceeds to step S7.

[0105] In step S6, the hydrogen fluctuation amount is registered in the second historical information 42, and the historical data 40 is rewritten. At this time, the ID of the historical data 40 is not changed.

[0106] In step S7, it is determined whether or not there is a change in the GHG emission amount in the second history information 42. As described above, the second history information 42 includes the amount of change in GHG emission as the amount of change in environmental value. Therefore, if a new amount of change in environmental value is registered, it is determined that there is a change in the second history information 42 regarding the GHG emission amount, and the process proceeds to the next step S8. If it is determined that there is no change in the second history information 42 regarding the GHG emission amount, the process returns to step S1, and the above process is repeated.

[0107] In step S6, the GHG emission amount is registered in the second historical information 42, and the historical data 40 is rewritten. At this time, the ID of the historical data 40 is not changed.

[0108] By the above processing, the data management device 20 can generate history data 40 including a newly issued ID when the first history information 41 is changed, and can execute processing to rewrite the history data 40 while maintaining the ID when the second history information 42 is changed.

[0109] A more specific example of processing will be described, focusing on the content of the data.

[0110] Consider a case where hydrogen is supplied through the history shown in Figure 6. First, hydrogen is produced and stored at production base A. The produced hydrogen is divided, with a portion being received by transport ship B and the remainder remaining at production base A as a source of delivery. The hydrogen is stored on transport ship B and transported to storage base C. The ownership changes during transport on transport ship B. At storage base C, the entire amount of hydrogen stored on transport ship B is received.

[0111] In this case, hydrogen is produced at production base A, and information about this new production is received. As a result, it is determined that the first history information 41 has been changed, and history data 40 with a new ID assigned is issued. For example, history data 40 with a new ID "001" assigned is issued. The history data 40 includes a static field fs and a variable field fv.

[0112] 7 is a diagram showing an example of history data 40 immediately after it has been issued for new production. As shown in the figure, the static field fs contains new ID "001", transaction date and time "2023 / 01 / 01 00:00:00", transaction content "new registration", location "Base A" and owner "Company A", hydrogen quantity "100", environmental value (CO ２ In addition, a storage temperature of "-260" is registered in the variable field fv.

[0113] 8 is a diagram showing an example in which the history data 40 is rewritten by registering the variable field fv as a result of determining that the second history information 42 has been changed. As shown in the figure, the hydrogen fluctuation amount and the environmental value fluctuation amount (CO ２ The amount of hydrogen fluctuation or the amount of environmental value fluctuation is an amount of activity that occurs during storage, and is therefore determined after the history data 40 is issued. Therefore, when the amount of hydrogen fluctuation or the amount of environmental value fluctuation is determined, the corresponding item is registered while maintaining the ID. If the amount of hydrogen fluctuation or the amount of environmental value fluctuation changes sequentially, the amount of hydrogen fluctuation or the amount of environmental value fluctuation may be registered sequentially as the fluctuation occurs, and the change history may also be registered as log information.

[0114] Note that some items of the static field fs may also be registered when the information becomes clear after the issuance of the history data 40. Also, the variable field fv may be registered after the next ID is issued.

[0115] Similarly, for other history data 40 described below, some of the static fields fs and the variable fields fv may be registered with a delay.

[0116] The produced hydrogen is divided, with one portion being received by transport ship B and the remainder remaining at production base A as a source of delivery. The division of hydrogen and its transfer to another location is an intentional change to the history of the hydrogen. Therefore, when information regarding the division and receipt is received, history data 40 with a new ID assigned is issued for each of the received hydrogen and the remaining source hydrogen. For example, history data 40 with a new ID "002" assigned is issued for the received hydrogen. History data 40 with a new ID "003" assigned is issued for the source hydrogen.

[0117] FIG. 9 is a diagram showing an example in which hydrogen associated with the history data 40 of ID "001" is divided into the above-mentioned ID "002" and ID "003."

[0118] For the history data 40 of hydrogen received by transport ship B, the static field fs contains the new ID “002”, transaction date and time “2023 / 01 / 01 12:00:00”, transaction content “received”, location “Vessel B” and owner “Company A”, hydrogen quantity “40”, and environmental value (CO ２ In the variable field fv, a storage temperature of "-258" is registered. In the history data 40, the ID of the previous history data 40 is preferably registered to indicate the relationship with the previous history data 40. In this case, the previous ID "001" is registered. The previous ID item may be prepared as a blank (null) item in the data shown in FIG. 3.

[0119] Regarding the history data 40 of hydrogen remaining at the refund source terminal A, the static field fs contains the new ID “003”, transaction date and time “2023 / 01 / 01 12:00:00”, transaction content “withdrawal”, location “Terminal A” and owner “Company A”, hydrogen quantity “55”, and environmental value (CO ２ In the variable field fv, a storage temperature of "-258" is registered. Similarly to the above, the ID of the previous history data 40 may be registered in the history data 40 to indicate the relationship with the previous history data 40. In this case, the previous ID "001" is registered. The link relationship between the history data 40 may be understood based on the ID and the previous ID.

[0120] The sum of the hydrogen amount for ID "002" and the hydrogen amount for ID "003" is the value obtained by subtracting the hydrogen fluctuation amount from the hydrogen amount in the initial state of ID "001." In other words, at the time hydrogen is received or shipped, the hydrogen remaining at base A is divided into hydrogen to be stored on transport ship B and hydrogen to be left at base A. Note that leaked or vaporized hydrogen may be assigned a separate ID and stored as vaporized hydrogen data.

[0121] The amount of change in environmental value (CO ２ amount) and the environmental value change amount of ID “003” (CO ２ The environmental value (CO ２ amount) and environmental value change amount (CO ２ It is calculated based on the amount of

[0122] Environmental value (CO ２ amount) and environmental value change amount (CO ２ If the amount of change in environmental value (CO ２ amount) and the environmental value change amount of ID “003” (CO ２ The environmental value (CO ２ amount) and environmental value change amount (CO ２ It may also be the sum of the quantity (amount).

[0123] Environmental value (CO ２ amount) and environmental value change amount (CO ２ The amount of hydrogen stored is calculated based on the environmental value (CO ２ Total amount of change in environmental value (CO ２ If the total amount of environmental value fluctuation (CO ２ amount) and the environmental value change amount of ID “003” (CO ２ The environmental value (CO ２ amount) and environmental value change amount (CO ２ The amount of hydrogen may be a value obtained by dividing the amount of hydrogen by the ratio of the divided amount of hydrogen.

[0124] As shown in the figure, the hydrogen fluctuation amount and the environmental value fluctuation amount (CO ２The amount) is registered after the history data 40 is issued.

[0125] 6, if an owner change occurs during transportation on transport ship B, the change in owner is an intentional change to the history of the hydrogen. Therefore, history data 40 with a new ID assigned is issued for the hydrogen stored on transport ship B. For example, history data 40 with a new ID "004" assigned is issued for the hydrogen whose owner has changed.

[0126] The entire amount of hydrogen stored on transport ship B is received at storage base C. This reception is an intentional change to the history of the hydrogen. Therefore, history data 40 with a new ID assigned is issued to the hydrogen stored at storage base C. For example, history data 40 with a new ID "005" assigned is issued to the hydrogen received at storage base C.

[0127] 10 and 11 are diagrams showing examples of activity amount data 50 in the example history shown in FIG. 6 above.

[0128] Activity amount data 50 for manufacturing at base A is generated corresponding to the history data 40 with ID "001". The org ID "001", the current ID "001", and the target date and time "2023 / 01 / 01 0:00-1:00" are registered in this activity amount data 50. If the breakdown of GHG emissions is not yet determined when the activity amount data 50 is generated, the GHG emissions are left blank "null".

[0129] When a part of the breakdown of the GHG emission amount is determined, the determined GHG emission amount, for example, the GHG emission amount due to electricity of "1000" is registered. As described above, the activity amount may be the GHG emission amount itself or the resource consumption amount that is the basis for calculating the GHG emission amount.

[0130] Furthermore, when hydrogen is produced at base A, activity amount data 50 for storage at base A is generated corresponding to the history data 40 with ID "001." The org ID "001," the current ID "001," and the target date and time "2023 / 01 / 01 1:00 to null" are registered in this activity amount data 50. If the breakdown of GHG emissions is not yet determined when the activity amount data 50 is generated, the GHG emissions amount is left blank, "null."

[0131] When the remaining manufacturing resources are determined, the determined GHG emission amount, for example, the GHG emission amount from coal of "100" is registered. For the determined activity amount data 50, it is preferable that "Determined" be registered.

[0132] When hydrogen is received from base A to transport ship B, the activity amount data 50 is inherited. For example, the current ID of the activity amount data 50 for production and storage at base A is rewritten to the ID of the recipient, "002." Furthermore, the GHG emissions are rewritten so as to be apportioned based on the ratio between the amount of hydrogen remaining at base A and the amount of hydrogen received by transport ship B.

[0133] Furthermore, when hydrogen is received by transport ship B, activity amount data 50 for storage on transport ship B is generated corresponding to the history data 40 with ID "002". In this activity amount data 50, the org ID "002", the current ID "002", and the target date and time "2023 / 01 / 01 12:00 to null" are registered. If the breakdown of GHG emissions has not been determined when the activity amount data 50 is generated, the GHG emissions amount is left blank, "null". When a new ID is issued, the correspondence with the original ID is registered in the linked data 35.

[0134] When the GHG emission amount is determined for each activity amount data 50, each emission amount is registered, and when it is confirmed, the activity amount data 50 is registered as confirmed. As described above, stored hydrogen may be consumed as an activity amount on transport ship B. In this case, the GHG emission amount corresponding to the amount of hydrogen consumed is written into the activity amount data 50. Furthermore, the amount of hydrogen consumed is reflected in the hydrogen fluctuation amount for ID "002" or "004".

[0135] For each history, by referring to the associated activity amount data 50, the environmental value fluctuation amount (CO ２ The amount of

[0136] According to the hydrogen traceability data management system 10 and hydrogen traceability data management method configured as described above, when the first history information 41 is changed due to an intentional change in the hydrogen history, the data management device 20 generates history data 40 including a newly issued ID. Furthermore, when the second history information 42 is changed due to an unintentional change in the hydrogen history, the data management device 20 rewrites the history data 40 while maintaining the ID. Therefore, it is not necessary to issue a new ID every time the history information is changed. This simplifies ID management and reduces the amount of data required to manage traceability data.

[0137] Furthermore, when the hydrogen history is intentionally changed, there is a high possibility that the actual environment of the history, for example, the storage environment, will be significantly changed. By managing history data 40 for different actual environments with separate IDs, hydrogen traceability can be efficiently managed by distinguishing between different actual environments. Therefore, hydrogen traceability data can be efficiently managed by distinguishing between preferred histories with a small data volume.

[0138] Furthermore, if the first history information 41 is information received when hydrogen is produced or loaded, such as information about new production, receipt, or delivery, a new ID is issued when hydrogen is produced or when the storage facility is changed due to loading and unloading of hydrogen, making it easy to manage history data by storage facility.

[0139] Furthermore, if the second history information 42 is the amount of fluctuation in hydrogen or the amount of GHG fluctuation resulting from the historical route of hydrogen, the amount of fluctuation in hydrogen or the amount of GHG fluctuation resulting from the historical route of hydrogen can be easily managed in units of changes to the first history information 41.

[0140] In particular, if the first history information 41 is information received when hydrogen is produced or loaded, and the second history information 42 is information about the amount of fluctuation in hydrogen or the amount of GHG fluctuation resulting from the hydrogen's history, the amount of fluctuation in hydrogen or the amount of greenhouse gas fluctuation resulting from the hydrogen's history can be rewritten for each storage facility, making it easy to manage the amount of fluctuation. Furthermore, the ease of hydrogen volatilization and the origin of resources for storage may differ for each storage facility. The second history information 42 can also be easily managed appropriately for each storage facility.

[0141] Furthermore, if the history data 40 includes the amount of hydrogen or the amount of greenhouse gases at the time of issuing the ID, it becomes easier to manage GHG or CI (Carbon Intensity) based on the traceability data.

[0142] Furthermore, the second history information 42 is the amount of fluctuation in hydrogen or the amount of GHG fluctuation resulting from the historical passage of hydrogen, and the history data 40 includes the amount of hydrogen or the amount of GHG at the time of issuance of the ID. When an ID is issued, the data management device 20 registers the amount of hydrogen or the amount of greenhouse gas based on the amount of hydrogen or the amount of greenhouse gas at the time of issuance of the ID, which is included in the history data 40 before the ID is issued, and the amount of fluctuation in hydrogen or the amount of greenhouse gas fluctuation in GHG. Therefore, each time an ID is issued, the amount of hydrogen or the amount of greenhouse gas can be registered based on the previous history data.

[0143] The second history information 42 also includes GHG fluctuations resulting from the historical passage of hydrogen, and the storage device 32 stores activity amount data 50 including GHG generation information associated with the historical passage of hydrogen. The data management device 20 then rewrites the GHG fluctuations based on the GHG generation information. This allows the activity amount data 50, including GHG that is the basis for calculating the GHG amount, to be managed separately from the history data 40. This allows the amount of data in the history data 40 used to ensure traceability to be reduced.

[0144] Furthermore, if the activity amount data 50 includes information on GHG emissions resulting from the storage or transportation of hydrogen, it becomes easier to understand the GHG emissions resulting from the storage or transportation of hydrogen.

[0145] The configurations described in the above embodiment and modifications can be combined as appropriate as long as they are not mutually contradictory.

[0146] The present disclosure discloses the following aspects.

[0147] A first aspect is a traceability data management system for hydrogen that is supplied via multiple histories, and includes a history information receiving unit that receives first history information associated with an intentional change in the history of the hydrogen and second history information associated with an unintentional change in the history of the hydrogen, a storage device that stores history data including the first history information, the second history information, and an ID, and a data management unit that controls the generation and rewriting of the history data, wherein the data management unit generates the history data including the newly issued ID when the first history information is changed, and rewrites the history data while maintaining the ID when the second history information is changed.

[0148] According to this hydrogen traceability data management system, when the first history information is changed due to an intentional change in the hydrogen history, the data management unit generates the history data including a newly issued ID. Furthermore, when the second history information is changed due to an unintentional change in the hydrogen history, the data management unit rewrites the history data while maintaining the ID. Therefore, it is not necessary to issue a new ID every time the history information is changed. Furthermore, when the hydrogen history is intentionally changed, there is a high possibility that the actual environment of the history will change significantly. By managing history data for different actual environments with separate IDs, hydrogen traceability can be efficiently managed by distinguishing between different actual environments. Therefore, hydrogen traceability data can be managed efficiently and with a small data capacity.

[0149] A second aspect is the hydrogen traceability data management system according to the first aspect, wherein the first history information includes information received at the time of production or loading of the hydrogen.

[0150] In this way, if the first history information is information that is accepted when hydrogen is produced or loaded, a new ID is issued when hydrogen is produced or when the storage facility is changed due to hydrogen loading, making it easy to manage history data by storage facility.

[0151] A third aspect is a hydrogen traceability data management system according to the first or second aspect, wherein the second history information includes a fluctuation amount of the hydrogen or a fluctuation amount of greenhouse gases resulting from the history of the hydrogen.

[0152] In this way, if the fluctuation amount of hydrogen or the greenhouse gas fluctuation amount due to the history of hydrogen is concerned, the fluctuation amount of hydrogen or the greenhouse gas fluctuation amount due to the history of hydrogen can be easily managed in units of changes to the first history information.

[0153] A fourth aspect is any one of the first to third hydrogen traceability data management systems, wherein the history data includes the amount of hydrogen or the amount of greenhouse gas at the time of issuance of the ID.

[0154] In this case, since the historical data includes the amount of hydrogen or greenhouse gas at the time of issuing the ID, it is easy to manage GHG or CI based on the traceability data.

[0155] A fifth aspect is a hydrogen traceability data management system according to the first or second aspect, wherein the second history information includes the amount of fluctuation in the hydrogen or the amount of fluctuation in greenhouse gases resulting from the historical route of the hydrogen, the history data includes the amount of hydrogen or the amount of greenhouse gases at the time of issuance of the ID, and the data management unit, at the time of issuance of the ID, registers the amount of hydrogen or the amount of greenhouse gas based on the amount of hydrogen or the amount of greenhouse gases at the time of issuance of the ID contained in the history data before the issuance of the ID and the amount of fluctuation in hydrogen or the amount of fluctuation in greenhouse gases.

[0156] This allows the amount of hydrogen or greenhouse gas to be registered each time an ID is issued based on the previous history.

[0157] A sixth aspect is a hydrogen traceability data management system according to any one of the first to fifth aspects, wherein the second history information includes greenhouse gas fluctuations resulting from the hydrogen's history, the storage device stores activity data including greenhouse gas generation information associated with the hydrogen's history, and the data management unit rewrites the greenhouse gas fluctuations based on the greenhouse gas generation information.

[0158] This allows the activity data, including greenhouse gas emission information that is the basis for calculating greenhouse gas amounts, to be managed separately from the historical data, thereby reducing the amount of historical data.

[0159] A seventh aspect is a hydrogen traceability data management system according to the sixth aspect, wherein the activity data includes greenhouse gas emission information resulting from the storage or transportation of the hydrogen.

[0160] This makes it easier to understand the greenhouse gas emissions resulting from the storage or transportation of hydrogen.

[0161] An eighth aspect is a method for managing traceability data for hydrogen that is supplied via multiple histories, in which a computer receives first history information associated with an intentional change in the history of the hydrogen and second history information associated with an unintentional change in the history of the hydrogen, and when the first history information is changed, stores the history data including the newly issued ID in a storage device, and when the second history information is changed, executes a process to rewrite the history data stored in the storage device while maintaining the ID.

[0162] According to this hydrogen traceability data management method, when the first history information is changed due to an intentional change in the hydrogen history, the history data including a newly issued ID is generated. Furthermore, when the second history information is changed due to an unintentional change in the hydrogen history, the history data is rewritten while maintaining the ID. Therefore, it is not necessary to issue a new ID every time the history information is changed. Furthermore, when the hydrogen history is intentionally changed, there is a high possibility that the actual environment of the history will change significantly. By managing history data for different actual environments with separate IDs, hydrogen traceability can be efficiently managed by distinguishing between different actual environments. Therefore, hydrogen traceability data can be managed efficiently and with a small data capacity.

[0163] It should be noted that the functions of the elements disclosed herein can be performed using circuits or processing circuits, including general-purpose processors, special-purpose processors, integrated circuits, application-specific integrated circuits (ASICs), conventional circuits, and / or combinations thereof, configured or programmed to perform the disclosed functions. A processor is considered a processing circuit or circuit because it includes transistors and other circuitry. In this disclosure, a circuit, unit, or means is hardware that performs the recited functions or hardware that is programmed to perform the recited functions. The hardware may be hardware disclosed herein or other known hardware that is programmed or configured to perform the recited functions. Where hardware is a processor, which is considered a type of circuit, the circuit, means, or unit is a combination of hardware and software, and the software is used to configure the hardware and / or processor.

[0164] The above description is illustrative in all respects and is not intended to limit the scope of the present invention. It is understood that numerous variations not illustrated can be envisaged without departing from the scope of the present invention.

Claims

1. A traceability data management system for hydrogen that is supplied through multiple histories, comprising: a history information receiving unit that receives first history information associated with an intentional change to the history of the hydrogen and second history information associated with an unintentional change to the history of the hydrogen; a storage device that stores history data including the first history information, the second history information, and an ID; and a data management unit that controls the generation and rewriting of the history data, wherein when the first history information is changed, the data management unit generates the history data including the newly issued ID, and when the second history information is changed, rewrites the history data while maintaining the ID.

2. A hydrogen traceability data management system as described in claim 1, wherein the first history information includes information received at the time of production or loading of the hydrogen.

3. A hydrogen traceability data management system as described in claim 1 or claim 2, wherein the second history information includes an amount of fluctuation in the hydrogen or an amount of fluctuation in greenhouse gases resulting from the history of the hydrogen.

4. A hydrogen traceability data management system as set forth in claim 1 or 2, wherein the history data includes the amount of hydrogen or the amount of greenhouse gas at the time of issuance of the ID.

5. A hydrogen traceability data management system as described in claim 1 or claim 2, wherein the second history information includes the amount of fluctuation in the hydrogen or the amount of greenhouse gas fluctuation resulting from the history of the hydrogen, the history data includes the amount of hydrogen or the amount of greenhouse gas at the time of issuance of the ID, and the data management unit, at the time of issuance of the ID, registers the amount of hydrogen or the amount of greenhouse gas based on the amount of hydrogen or the amount of greenhouse gas at the time of issuance of the ID contained in the history data before the issuance of the ID and the amount of fluctuation in the hydrogen or the amount of greenhouse gas fluctuation.

6. A hydrogen traceability data management system as described in claim 1 or claim 2, wherein the second history information includes a greenhouse gas fluctuation amount attributable to the hydrogen's history, the storage device stores activity amount data including greenhouse gas emission information associated with the hydrogen's history, and the data management unit rewrites the greenhouse gas fluctuation amount based on the greenhouse gas emission information.

7. A hydrogen traceability data management system as set forth in claim 6, wherein the activity amount data includes greenhouse gas emission information resulting from the storage or transportation of the hydrogen.

8. A method for managing traceability data for hydrogen that is supplied through multiple histories, comprising: a computer receiving first history information associated with an intentional change to the history of the hydrogen and second history information associated with an unintentional change to the history of the hydrogen; when the first history information is changed, storing the history data including the newly issued ID in a storage device; and when the second history information is changed, executing a process of rewriting the history data stored in the storage device while maintaining the ID.

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