Traceability data management system and management method of hydrogen

Abstract

To efficiently manage traceability data of hydrogen with small data capacity.SOLUTION: A traceability data management system of hydrogen which is supplied through a plurality of records includes a record information reception part for receiving first record information accompanying an intentional change of a record of hydrogen, and second record information accompanying an unintentional change of the record of the hydrogen, a storage device for storing record data 40 including the first record information, the second record information and an ID, and a data management part for controlling generation and rewriting of the record data, wherein the data management part generates the record data 40 including a newly issued ID when the first record information has been changed, and rewrites the record data 40 while maintaining the ID when the second record information has been changed.SELECTED DRAWING: Figure 6

Description

[Technical field]

[0001] The present disclosure relates to techniques for managing hydrogen traceability data. [Background technology]

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

[0003] [Patent Document 1] JP 2014-211451 A Summary of the Invention [Problem to be solved by the invention]

[0004] Incidentally, in order to grasp the greenhouse gas (GHG) and carbon intensity (CI) 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 efficiently manage hydrogen traceability data that may include various provenance information 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. [Means for solving the problem]

[0007] The hydrogen traceability data management system is a traceability data management system for hydrogen supplied through multiple histories, and includes a history information receiving unit that receives first history information associated with an intentional change to the hydrogen history and second history information associated with an unintentional change to 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, a method for managing traceability data for hydrogen is a method for managing traceability data for hydrogen that is supplied through multiple histories, in which a computer 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, 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 of rewriting the history data stored in the storage device while maintaining the ID. Effect of the Invention

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

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

[0011] {Embodiment} The hydrogen traceability data management system and management method according to the embodiment will be described below. 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 is produced by electrolysis, which involves electrolyzing water, or by reforming coal or natural gas. In other words, it is assumed that the origin of hydrogen is either by electrolysis, coal, or natural gas. Hydrogen may be produced from ammonia, in which case the origin of hydrogen is ammonia. The coal may 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 substances for storage. In any case, energy is consumed for cooling, compression, or dehydrogenation.

[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 movement. The energy source for the movement of the transport ship 110 may be fuel loaded solely for the movement, or may be 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 in 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 through production facilities, storage facilities and transportation equipment.

[0020] For hydrogen traceability, it is desirable to identify the origin of hydrogen. Furthermore, hydrogen is supplied through multiple histories as described above. 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 clarifying, for example, when, where, and by whom hydrogen was produced, and how it was supplied. Hydrogen traceability may be considered to include information on how much hydrogen was produced and how much environmental value it has.

[0021] In addition, the amount of hydrogen may vary, particularly decrease, during storage due to leakage, volatilization, etc. For this reason, it is desirable to grasp the fluctuation in the amount of hydrogen.

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

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

[0024] For this reason, it is also desirable to understand the GHG emissions generated in the supply of hydrogen throughout the route from production to supply.

[0025] In addition, since most of the greenhouse gas emitted in the hydrogen supply route is CO2, greenhouse gas (GHG) emissions may be understood as CO2 emissions. In the following explanation, greenhouse gas (GHG) emissions are assumed to be CO2 emissions.

[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, 80. For example, data collected through the terminal devices 60, 70, 80 is accumulated 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, 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, the fluctuation in the amount of hydrogen, or the amount of GHG emissions is input, and which transmit the input information to the traceability data management system 10. The terminal devices 60, 70, 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, the terminal device 60 is placed in the base 100 and accepts input of various information related to the history of hydrogen, the fluctuation in hydrogen amount, or GHG emission amount at the base 100. Also, for example, the terminal device 70 is placed in the transport ship 110 and accepts input of various information related to the history of hydrogen, the fluctuation in hydrogen amount, or GHG emission amount at the transport ship 110. Also, for example, the terminal device 80 is placed in the base 120 and accepts input of various information related to the history of hydrogen, the fluctuation in hydrogen amount, or GHG emission amount at the base 120.

[0029] It is not essential that the terminal devices 60, 70, 80 are 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 to 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. In addition, 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 and the data server that stores the traceability data may be separate. Also, the various information from the terminal devices 60, 70, and 80 and the traceability data may be stored in separate data servers by region.

[0034] The data management device 20 and the data server 30 may be configured as one 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 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 communication circuitry.

[0039] A terminal device 60 arranged within the base 100 is connected to, for example, a production consumption sensor 61, a storage consumption sensor 62, a hydrogen amount 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 during the production of hydrogen in the production facility 102.

[0041] For example, when hydrogen is produced by electrolysis, the production resource may be electricity, and the consumption may be the power consumption. In this case, the consumption sensor 61 is a power consumption meter. If the power consumption during production and the CO2 emission coefficient of the power consumption are known, the GHG emission when the hydrogen is produced by electrolysis can be calculated.

[0042] Also, for example, when hydrogen is produced by reforming coal or natural gas, the production resource is coal or natural gas, and the consumption is the amount of coal consumed or the amount of natural gas consumed. In this case, the consumption 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, if the amount of CO2 emissions per unit consumption of coal or natural gas is known, the amount of GHG emissions when hydrogen is produced from coal or natural gas can be found based on the amount of coal consumed or the amount of 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. If the power consumption for storage and the CO2 emission coefficient of that power consumption are known, the GHG emissions when storing the hydrogen can be found.

[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 grasped.

[0045] The input unit 64 is a man-machine interface for an operator to input various information, and is, for example, a switch such as a keyboard, 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 and unloading, location, or owner can be input via the input unit 64. Loading and unloading of existing hydrogen, and changes to the location or owner are made by designating an ID, which will be described later.

[0046] The loading and unloading of hydrogen refers to the transfer of produced hydrogen from a facility or device to another facility or device. For example, the transfer of hydrogen from the storage facility 104 at the base 100 to the storage facility 112 at the transport ship 110, and the transfer of hydrogen from the storage facility 112 at the transport ship 110 to the storage facility 122 at the 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 a transportation resource consumed for the navigation of the transport ship 110 and the storage of hydrogen in the transport ship 110. For example, the consumption sensor 71 may be a sensor that detects the power consumption amount of the transportation resource, or a sensor that detects the consumption amount of coal or natural gas. In either case, if the consumption amount of the transportation resource is known and the amount of CO2 emissions per unit consumption is known, the GHG emissions due to the transportation of hydrogen can be found 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 above-mentioned consumption sensor 62.

[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 other than 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. The input unit 94 is a man-machine interface for inputting information related to the history of hydrogen, similar to the input unit 64. A sensor for detecting hydrogen information may not be connected to the terminal device 90. In other words, the terminal device 90 may be used not only as a device for detecting history information, but also as a device for accepting various information from an operator. Such a terminal device 90 may be installed in a location other than the facility or device that handles hydrogen, such as the base 100, 120 or the transport ship 110. For example, it may be installed in a hydrogen trading management location. An operator can input various information related to the history of hydrogen, such as information related to the loading and unloading of hydrogen, the location of hydrogen, or information related to the owner of 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 refers to the amount of hydrogen that varies with the handling of hydrogen 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 one example of an activity amount, and the amount of GHG emissions calculated based on the amount of resources consumed is also one example of an activity amount.

[0057] Information regarding the handling of hydrogen at the bases 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 of production, and the owner of hydrogen. The owner at the time of production is usually the manufacturer. The hydrogen storage information may include information regarding the start of hydrogen storage, the storage place, and the owner. The hydrogen transfer information may include information regarding the time of receipt for hydrogen transfer, the storage place, and the owner. If the 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 history information includes GHG emissions from hydrogen, the accuracy of the GHG emissions from the hydrogen being supplied can be guaranteed.

[0060] The terminal devices 60 , 70 , 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). A hydrogen inventory database 33, a GHG database 34, collected data 32a, and consolidated data 35 are stored in the storage device 32.

[0062] The storage device 32 and the 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. The history data 40 includes an ID, first history information 41, second history information 42, and initial state information 43, as described later. Therefore, the storage device 32 is an example of a storage device that stores the history data 40 including the first history information 41, the second history information 42, and an ID. The linked data 35 is data for linking a plurality of 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, 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 non-volatile 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 a process for the processor 21 to realize a function for data management. Thus, the processor 21 executes the process described in the program 22a, thereby executing the process for data management. The processor 21 may be one or more. The multiple processors 21 may be incorporated in one computer. The multiple processors 21 may be incorporated in multiple computers, and the multiple computers may distribute the process for data management.

[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, for example, 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 including 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 include items that are supplemented 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 described by, for example, numbers or alphabets, or a combination of these. The ID may be any code that can be identified by a computer. The ID is used to specify the issued history data 40 and to distinguish them from each other.

[0074] The first history information 41 is information recorded when there is an intentional change in the history of hydrogen. More specifically, the first history information is information 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 production of hydrogen is a history of newly generating the history of hydrogen with the intention of producing hydrogen. Therefore, information related to new production of hydrogen is an example of the first history information 41. Information indicating new production of hydrogen is, for example, an example of information received at the time of production of hydrogen through the terminal device 60. Furthermore, loading and unloading of hydrogen is a history of transferring hydrogen from a storage facility at the transport source to a device or facility for transport, or conversely, transferring hydrogen from a device or facility for transport to a storage facility at the transport destination, with the intention of transporting hydrogen. Therefore, information related to loading and unloading of hydrogen is an example of the first history information 41. Information related to loading and unloading of hydrogen is, for example, an example of information received at the time of loading and unloading of hydrogen through the terminal devices 60, 70, 80. Furthermore, change of ownership of hydrogen is a history of changing the ownership of the hydrogen with the intention of transferring the hydrogen. Therefore, information related to change of ownership of hydrogen is an example of the 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 the change of owner of hydrogen, the first history information 41 may include 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 occurrence 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 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 of issuance of the ID. 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 of new issuance of the history data 40. 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 owner change. The environmental value is the environmental value at the time of new issuance of the history data 40, and the environmental value may be evaluated, for example, by the amount of GHG emissions caused by hydrogen, for example, the amount of CO2 emissions. The amount of CO2 emissions may be registered as the amount of emissions per unit amount of the registered amount of hydrogen, or may be registered as the amount of emissions relative to the total amount of registered hydrogen. Note that the initial state information 43 is a value that should have already been determined when the history data 40 is newly issued, but the determination of information for the calculation may be delayed, and as a result, the information 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 including items that may 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 an unintentional change in the history of hydrogen. The second history information 42 may be information indicating a state that occurs incidentally in association with the handling of hydrogen.

[0080] In this embodiment, the second history information 42 includes the amount of change in hydrogen and the amount of change in environmental value, and may include other information related to hydrogen. The information related to hydrogen other than the amount of change in hydrogen and the amount of change 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 variation amount is the amount of variation of hydrogen that occurs during a history period specified by the first history information 41. In other words, during storage of hydrogen, the amount of stored hydrogen may vary due to leakage, volatilization, etc. The hydrogen variation amount indicates the amount of variation of hydrogen during the history period.

[0082] The environmental value fluctuation is the amount of fluctuation in environmental value resulting from a history period. As described above, the environmental value may be evaluated by the amount of GHG, for example, CO2 emissions. For example, the environmental value fluctuation may be the amount of CO2 fluctuation in the history period. For example, during the storage period of hydrogen, energy such as electricity is consumed for storage. Furthermore, when hydrogen is transported, energy is consumed as a power source for the transportation. The amount of CO2 emissions for generating these energies is registered as the environmental value fluctuation.

[0083] The temperature is, for example, the temperature of the equipment for storing 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. In the second history information 42, some items may be omitted, and other items may be added.

[0084] In the template of the history data 40, each of the above items is blank and set to "null." When the history data 40 is newly 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 the new issuance. Then, after the history data 40 is newly issued, the second history information 42 becomes known, and after the second history information 42 becomes known, each item of the second history information 42 is registered.

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

[0086] It should be noted that the amount of hydrogen variation, the amount of environmental value variation, and the temperature related to the second history information 42 may vary from moment to moment with the passage of time. Therefore, information on changes in the amount of hydrogen variation, the amount of environmental value variation, 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. As shown in FIG.

[0088] The activity amount data 50 is data that records the amount of activity that varies 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 GHG emissions from electricity, GHG emissions from coal, and GHG emissions from natural gas as a breakdown of GHG emissions. The GHG emissions are an example of GHG generation information associated with the history of hydrogen. In addition, the GHG emissions from electricity, GHG emissions from coal, and GHG emissions from natural gas as a breakdown of GHG generation information are also examples of GHG generation information associated with the history of hydrogen. Information related to the breakdown of GHG generation information may be omitted, and the total amount of GHG emitted may be recorded as GHG generation information.

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

[0091] The activity amount data 50 is associated with an ID of a history from which the activity amount is generated by associating the ID in the terminal device 60, 70, 80 that is the source of the data, or by associating the ID based on the location and time of data generation, etc. The orgID indicates an ID associated with a history when the activity amount data 50 is newly created. That is, the activity amount data 50 indicates, for example, an activity amount in one history period. By recording the orgID corresponding to the first history in the activity amount data 50, it is possible to specify which history the activity amount is targeted for. The activity amount data 50 may be data associated with a plurality of history periods. In this case, the activity amount data 50 may 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 history, the activity amount data 50 is linked to a new history by the current ID. In this way, the activity amount data 50 of 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, GHG emissions from coal, and GHG emissions from natural gas as activity amounts indicate the amount of each emission 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 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, the history information is accepted. As described above, the history information is collected from the terminal devices 60, 70, 80, 90 to 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 accepts the history information when 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 a predetermined fixed period or when the data server 30 notifies the user of a change in the history information in the collected data 32a. When the data management device 20 accepts the history information, the process proceeds to the next step S2.

[0098] In step S2, it is determined whether the first history information 41 has been changed. As described above, the first history information 41 includes information related to the transaction content. Therefore, if information such as a new registration indicating new production of hydrogen, receipt or delivery indicating loading and unloading, a change in owner, or hydrogen consumption is 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 register the transaction date and time, transaction details, location, and owner. If the change in the history information is not a new production of hydrogen but an intermediate history modification of hydrogen, it is advisable to register in the link 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 to the first history information 41 in step S3 is a 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 emission amount may be the GHG emission amount at the time of hydrogen production. The GHG emission amount at the time of hydrogen production is calculated based on the consumption amount of production resources acquired by the terminal device 60, for example. For this reason, the GHG emission amount may be replenished after the issuance of the history data 40 and the determination of the consumption amount of production resources.

[0101] Also, for example, when 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 production 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 is 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. Also, the amount of hydrogen at the time of the change in the first history information 41 is obtained by subtracting the emission amount corresponding to the amount of GHG emission registered as the second history information 42 from the amount of GHG emission 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 of hydrogen, but when calculating between GHG emissions, the calculations are performed using a unified method.

[0103] After step S4 and if 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 historical information 42. As described above, the second historical information 42 includes the amount of hydrogen variation. Therefore, if a new amount of hydrogen variation is registered, it is determined that the second historical information 42 regarding the amount of hydrogen variation has been changed, and the process proceeds to the next step S6. If it is determined that the second historical information 42 regarding the amount of hydrogen variation has not been 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 change in the GHG emission amount as the environmental value change amount. Therefore, if the environmental value change amount is newly registered, it is determined that the second history information 42 related to the GHG emission amount has changed, and the process proceeds to the next step S8. If it is determined that the second history information 42 related to the GHG emission amount has not changed, 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 history information 42, and the history data 40 is rewritten. At this time, the ID of the history 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 a process of rewriting the history data 40 while maintaining the ID when the second history information 42 is changed.

[0109] A more specific processing example will be described with a focus on the contents of the data.

[0110] Consider the 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 one part being received by transport ship B and the other part 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 is changed during transport on transport ship B. At storage base C, the entire amount of hydrogen that was stored on transport ship B is received at storage base C.

[0111] In this case, hydrogen is produced at production base A, and information regarding the new production is received, so that it is determined that there is a change in the first history information 41, 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 is issued by new production. As shown in the figure, the 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 amount "100", and environmental value (CO2 amount) "5" are registered in the static field fs. In addition, the storage temperature "-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 variation amount and environmental value variation amount (CO2 amount) in the variable field fv are activity amounts that occur during storage, and therefore become clear after the history data 40 is issued. Therefore, when the hydrogen variation amount or environmental value variation amount becomes clear, the corresponding item is registered while maintaining the ID. When the hydrogen variation amount or environmental value variation changes sequentially, the hydrogen variation amount or environmental value variation amount may be registered sequentially in accordance with the variation, and the change history may be registered as log information.

[0114] Some items of the static field fs may also be registered when the information becomes clear after the history data 40 is issued. 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 part being received by transport ship B and the other part remaining at production base A as the source of shipment. The division of hydrogen and the transportation of hydrogen to other locations are intentional changes to the history of the hydrogen. For this reason, 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 to the received hydrogen is issued. History data 40 with a new ID "003" assigned to the source hydrogen is issued.

[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 IDs "002" and "003."

[0118] For the history data 40 of hydrogen received by transport ship B, 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 (CO2 quantity) "10" are registered in the static field fs. In addition, the storage temperature "-258" is registered in the variable field fv. In order to indicate the relationship with the previous history data 40, it is preferable that the ID of the previous history data 40 be registered in the history data 40. In this case, the previous ID "001" is registered. The previous ID item should be prepared as a blank (null) item in the data shown in FIG. 3.

[0119] For the hydrogen history data 40 remaining at the refund source terminal A, 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 amount "55", and environmental value (CO2 amount) "10" are registered in the static field fs. In addition, the storage temperature "-258" is registered in the variable field fv. As above, in order to indicate the relationship with the previous history data 40, the ID of the previous history data 40 may be registered in the history data 40. Here, the previous ID "001" is registered. The link relationship between the history data 40 may be grasped based on the above ID and the previous ID.

[0120] The sum of the amount of hydrogen for ID "002" and the amount of hydrogen for ID "003" is the amount of hydrogen in the initial state for ID "001" minus the amount of hydrogen fluctuation. In other words, at the time hydrogen is received and discharged, 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 stored as vaporized hydrogen data with a separate ID.

[0121] The environmental value change amount (CO2 amount) of ID "002" and the environmental value change amount (CO2 amount) of ID "003" are calculated based on the environmental value (CO2 amount) in the initial state of ID "001" and the environmental value change amount (CO2 amount).

[0122] If the environmental value (amount of CO2) and the environmental value fluctuation amount (amount of CO2) are values ​​per unit hydrogen, the environmental value fluctuation amount (amount of CO2) of ID "002" and the environmental value fluctuation amount (amount of CO2) of ID "003" may be the sum of the environmental value (amount of CO2) and the environmental value fluctuation amount (amount of CO2) in the initial state of ID "001".

[0123] If the environmental value (amount of CO2) and the amount of environmental value fluctuation (amount of CO2) are the total amount of environmental value (amount of CO2) and the total amount of environmental value fluctuation (amount of CO2) derived from the stored hydrogen, the amount of environmental value fluctuation (amount of CO2) of ID "002" and the amount of environmental value fluctuation (amount of CO2) of ID "003" may be values ​​obtained by apportioning the environmental value (amount of CO2) and the amount of environmental value fluctuation (amount of CO2) of ID "001" in the initial state in proportion to the ratio of the divided amounts of hydrogen.

[0124] As shown in the figure, the hydrogen variation amount and the environmental value variation amount (CO2 amount) in the variable field fv are registered after the history data 40 is issued.

[0125] 6, when 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 to the hydrogen stored on transport ship B. For example, history data 40 with a new ID "004" assigned is issued to the hydrogen that has undergone a change in owner.

[0126] The entire amount of hydrogen stored on transport ship B is received at storage base C. This receipt is an intentional change to the history of the hydrogen. For this reason, 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 an example of the activity amount data 50 in the example history shown in FIG.

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

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

[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 of ID "001". In this activity amount data 50, the org ID "001", the current ID "001", and the target date and time "2023 / 01 / 01 1:00~null" are registered. If the breakdown of GHG emissions is not determined when the activity amount data 50 is generated, the GHG emissions are left blank "null".

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

[0132] When hydrogen is received from base A to transport ship B, the activity data 50 is inherited. For example, the current ID of the activity data 50 for production and storage at base A is rewritten to the inherited ID "002". In addition, the GHG emissions are rewritten so that they are 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 in transport ship B is generated corresponding to the history data 40 of 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~null" are registered. If the breakdown of GHG emissions is undetermined when the activity amount data 50 is generated, the GHG emissions are 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 the 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. Also, the amount of hydrogen consumed is reflected in the hydrogen fluctuation amount in ID "002" or "004".

[0135] For each history, the amount of change in environmental value (amount of CO2) is calculated by referring to the associated activity amount data 50.

[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 to the hydrogen history, the data management device 20 generates history data 40 including a newly issued ID. Also, when the second history information 42 is changed due to an unintentional change to 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 the management of IDs and reduces the amount of data required to manage traceability data.

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

[0138] Furthermore, if the first history information 41 is information received at the time of hydrogen production or loading / unloading, such as information such as new production, receipt, or delivery, a new ID is issued when hydrogen is produced or when the storage facility is changed due to hydrogen loading / unloading, making it easy to manage the 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 due to the history of hydrogen, the amount of fluctuation in hydrogen or the amount of GHG fluctuation due to the history 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 the amount of fluctuation in hydrogen or the amount of GHG fluctuation resulting from the history of hydrogen, the amount of fluctuation in hydrogen or the amount of greenhouse gas fluctuation resulting from the history of hydrogen can be rewritten for each storage facility, making it easy to manage the amount of fluctuation. In addition, 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 ID issuance, it is easy to manage GHG or CI (Carbon Intensity) based on the traceability data.

[0142] Further, the second history information 42 is the amount of fluctuation in hydrogen or the amount of GHG fluctuation resulting from the history 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 contained 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 the GHG fluctuation amount resulting from the history of hydrogen, and the storage device 32 stores activity amount data 50 including GHG generation information associated with the history of hydrogen. The data management device 20 then rewrites the GHG fluctuation amount based on the GHG generation information. This allows the activity amount data 50 including GHG, which 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 for achieving traceability to be reduced.

[0144] Furthermore, if the activity amount data 50 includes GHG emission information resulting from the storage or transportation of hydrogen, it is easy to grasp 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 inconsistent.

[0146] The present disclosure discloses the following aspects.

[0147] A first aspect is a traceability data management system for hydrogen supplied through multiple history 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 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. This is a hydrogen traceability data management system.

[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. Also, 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. Also, when the hydrogen history is intentionally changed, there is a high possibility that the actual environment of the history will change significantly. By managing the history data for different actual environments with different IDs, the hydrogen traceability can be efficiently managed by distinguishing between different actual environments. Therefore, the hydrogen traceability data can be managed efficiently and with a small data capacity.

[0149] A second aspect is a 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 at the time of hydrogen production or loading / unloading, a new ID is issued when hydrogen is produced or when the storage facility is changed due to hydrogen loading / unloading, making it easy to manage the 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, in the case of the amount of fluctuation in hydrogen or the amount of fluctuation in greenhouse gases caused by the history of hydrogen, the amount of fluctuation in hydrogen or the amount of fluctuation in greenhouse gases caused by 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 the ID was issued.

[0154] In this case, since the history data includes the amount of hydrogen or greenhouse gas at the time of ID issuance, 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 greenhouse gas fluctuation due to the history of the hydrogen, and 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 ID is issued and the amount of fluctuation in the hydrogen or the amount of greenhouse gas fluctuation.

[0156] This makes it possible to register the amount of hydrogen or greenhouse gases each time a new ID is issued, based on the previous history.

[0157] A sixth aspect is a hydrogen traceability data management system relating to any one of the first to fifth aspects, wherein the second history information includes a greenhouse gas fluctuation amount attributable to the history of the hydrogen, the memory device stores activity amount data including greenhouse gas emission information associated with the history of the hydrogen, and the data management unit rewrites the greenhouse gas fluctuation amount based on the greenhouse gas emission information.

[0158] This allows the activity amount data, including greenhouse gas emission information that is the basis for calculating greenhouse gas amounts, to be managed separately from the history data, thereby reducing the amount of history 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 supplied through multiple histories, in which a computer 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, 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 of rewriting the history data stored in the storage device while maintaining the ID.

[0162] According to this method for managing hydrogen traceability data, when the first history information is changed due to an intentional change in the history of hydrogen, the history data including a newly issued ID is generated. Also, when the second history information is changed due to an unintentional change in the history of hydrogen, 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. Also, when the history of hydrogen 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 different 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 circuits. 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 the 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 the processor.

[0164] The above description is illustrative in all respects, and the present invention is not limited thereto. It is understood that countless variations not illustrated can be assumed without departing from the scope of the present invention. [Explanation of symbols]

[0165] 10 Traceability Data Management System 20 Data management device 21 Processors 22 Storage device 22a Program 29 Communication Equipment 30 Data Server 31 Processors 32 Storage device 2a Collected Data 33 Hydrogen inventory database 34 GHG Database 35 Consolidated Data 39 Communication Equipment 40 Historical Data 41 First History Information 42 Second History Information 43 Initial state information 50 Activity Data 60, 70, 80 Terminal Equipment

Claims

1. A traceability data management system for hydrogen supplied through multiple sources, comprising: a history information receiving unit that receives first history information associated with an intentional change in the history of 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; a data management unit for controlling generation and rewriting of the history data; Equipped with 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.

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

3. The hydrogen traceability data management system according to claim 1 or 2, A hydrogen traceability data management system, wherein the second history information includes a fluctuation amount of the hydrogen or a fluctuation amount of greenhouse gases caused by the history of the hydrogen.

4. The hydrogen traceability data management system according to claim 1 or 2, A hydrogen traceability data management system, wherein the history data includes the amount of hydrogen or the amount of greenhouse gas at the time of issuance of the ID.

5. The hydrogen traceability data management system according to claim 1 or 2, The second history information includes a fluctuation amount of the hydrogen or a fluctuation amount of greenhouse gases caused by the history of the hydrogen, The historical data includes the amount of hydrogen or greenhouse gas at the time of issuance of the ID, A hydrogen traceability data management system in which, at the time of issuance of the ID, the data management unit 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 before the ID is issued, and the amount of fluctuation in the hydrogen or the amount of fluctuation in the greenhouse gas.

6. The hydrogen traceability data management system according to claim 1 or 2, The second history information includes a greenhouse gas fluctuation amount caused by the history of the hydrogen, The storage device stores activity amount data including greenhouse gas emission information associated with the history of the hydrogen, The data management unit rewrites the greenhouse gas fluctuation amount based on the greenhouse gas emission information.

7. The hydrogen traceability data management system according to claim 6, A hydrogen traceability data management system, wherein the activity data includes greenhouse gas emission information resulting from the storage or transportation of the hydrogen.

8. A method for managing traceability data for hydrogen supplied through multiple sources, comprising: The computer receiving first history information associated with an intentional change in the history of hydrogen and second history information associated with an unintentional change in the history of the hydrogen; When the first history information is changed, the history data including the newly issued ID is stored in a storage device; A hydrogen traceability data management method, comprising: 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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