Hydrogen Delivery System

Abstract

To suppress an increase in delivery cost of a hydrogen cartridge, while effectively using wastewater from a fuel cell device at home.SOLUTION: A central management server 10 is communicably connected to a fuel cell device 3 and a blending machine 5 which generates mineral water by blending and mixing multiple kinds of mineral components with water discharged from the fuel cell device 3. The central management server comprises: delivery request information transmission means which transmits, to a delivery business information terminal 18, information for requesting delivery to a user's home 2 on at least a hydrogen cartridge 3a for exchange among the hydrogen cartridge 3a for exchange and other delivery objects 20, 21; blending recipe derivation means which derives blending recipe information on the multiple kinds of mineral components required for generating mineral water optimum for being combined with the other delivery objects 20, 21; and blending recipe information transmission means which transmits the blending recipe information derived by the blending recipe derivation means to the blending machine 5.SELECTED DRAWING: Figure 2

Description

[Technical Field]

[0001] The present invention relates to a hydrogen delivery system. [Background technology]

[0002] Patent Document 1 discloses a fuel cell unit having a fuel cell and a water storage tank that stores water produced as the fuel cell generates electricity. In this fuel cell unit, water is stored in the water storage tank by closing the drain valve to close the water discharge path, and the water stored in the water storage tank is discharged to the outside by opening the drain valve to open the water discharge path.

[0003] Furthermore, Patent Document 2 discloses a fuel cell device that includes a hydrogen cartridge for supplying hydrogen to a fuel cell main body, and the fuel cell main body with the hydrogen cartridge attached. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Japanese Patent Publication No. 2023-009572 [Patent Document 2] Japanese Patent Application Laid-Open No. 2005-129495 Summary of the Invention [Problem to be solved by the invention]

[0005] In recent years, fuel cell systems have become popular, and their installation in homes is gradually increasing. Therefore, it is desirable to effectively utilize wastewater from fuel cell systems within the home. Furthermore, when replacing a hydrogen cartridge, fuel cell device users must purchase a new one. However, if only one hydrogen cartridge is delivered, the delivery cost will naturally be high. If this delivery cost is reflected in the price of the hydrogen cartridge, more users will perceive the price of the hydrogen cartridge as being too expensive, which could hinder the further spread of fuel cell devices.

[0006] The present invention has been made in consideration of the above circumstances, and aims to suppress increases in the cost of delivering hydrogen cartridges by combining the delivery of hydrogen cartridges with the delivery of other items that can utilize the wastewater from fuel cell devices, while making effective use of the wastewater from fuel cell devices within the home. [Means for solving the problem]

[0007] The invention described in claim 1 is a hydrogen delivery system that delivers a replacement hydrogen cartridge 3a together with other deliveries 20, 21 to a user's home 2 in which a fuel cell device 3 is installed, in which a hydrogen cartridge filled with hydrogen for a fuel cell is configured to be freely attachable and detachable, as shown in, for example, FIGS. 1 to 5, The fuel cell device 3 has a remaining amount management unit 3b that manages remaining amount data of the hydrogen cartridge in use, and a drainage equipment unit 4 that stores and discharges water generated during power generation, The user's home 2 is provided with a compounder 5 that generates mineral water by compounding and mixing a plurality of mineral components with the water discharged from the drainage equipment unit 4, The other deliveries 20, 21 are to be consumed or used by the user in combination with the mineral water produced by the blender 5, a central management server 10 communicably connected to the fuel cell device 3 and the compounder 5; a delivery company information terminal 18 that is communicably connected to the central management server 10 and that is used by a delivery company that delivers the replacement hydrogen cartridge 3a together with the other deliveries 20, 21; The central management server 10 a delivery request information sending means for sending to the delivery company information terminal 18, when the remaining amount of hydrogen in the hydrogen cartridge in use becomes low, information requesting delivery of the replacement hydrogen cartridge 3a and at least the replacement hydrogen cartridge 3a of the other deliveries 20, 21 to the user's home 2; a blending recipe deriving means for deriving blending recipe information of a plurality of mineral components necessary to produce mineral water that is optimal for combining with the other deliveries 20 and 21; and a blending recipe information transmitting means for transmitting the blending recipe information derived by the blending recipe deriving means to the blender 5.

[0008] According to the invention described in claim 1, when the remaining amount of hydrogen in the hydrogen cartridge in use becomes low, the delivery request information sending means sends information to the delivery company information terminal 18 requesting delivery of at least the replacement hydrogen cartridge 3a, out of the replacement hydrogen cartridge 3a and other deliveries 20, 21, to the user's home 2, so that the delivery of the replacement hydrogen cartridge 3a and the other deliveries 20, 21 can be carried out together. The blender 5 produces mineral water by blending and mixing multiple types of mineral components with the water discharged from the drainage equipment section 4 of the fuel cell device 3, and other deliveries 20, 21 are combined with the mineral water produced by the blender 5 and consumed or used by the user, so that the wastewater from the fuel cell device 3 can be combined with other deliveries 20, 21 and effectively used within the home. This allows for effective use of wastewater from the fuel cell device 3 within the home while suppressing increases in delivery costs for the hydrogen cartridges 3a, which will ultimately contribute to the further spread of the fuel cell device 3 in the future.

[0009] The invention described in claim 2 is, for example, as shown in Figures 1 to 5, in the hydrogen delivery system described in claim 1, a user information terminal 15 connected to the central management server 10 so as to be capable of communicating with the user U residing in the user home 2; The central management server 10 a trigger information acquisition means for acquiring trigger information from the remaining amount management unit 3b to prompt replacement of the hydrogen cartridge in use; Selection information acquisition means for externally acquiring selection information necessary to select candidates for the other deliveries 20, 21 to be proposed to the user U upon receipt of the trigger information; A selection means for selecting candidates for the other deliveries 20, 21 to be proposed to the user U based on the selection information acquired by the selection information acquisition means; a candidate information transmitting means for transmitting candidate information of the other deliveries 20, 21 selected by the selecting means to the user information terminal 15; and an approval / disapproval information acquisition means for acquiring information relating to the user U's approval / disapproval of the candidate information of the other deliveries 20, 21 from the user information terminal 15, The delivery request information transmitting means The acceptance / rejection information acquisition means acquires information relating to the acceptance / rejection of the user U regarding the candidate information of the other deliveries 20 and 21, If the user U agrees to the candidate information for the other deliveries 20, 21, information requesting delivery of the replacement hydrogen cartridge 3a and the other deliveries 20, 21 to the user's home 2 is transmitted to the delivery company information terminal 18, If the user U does not accept the candidate information for the other deliveries 20, 21, information is sent to the delivery company information terminal 18 requesting delivery of only the replacement hydrogen cartridge 3a to the user's home 2.

[0010] According to the invention recited in claim 2, upon receiving trigger information prompting the replacement of a hydrogen cartridge in use, the central management server 10 externally obtains selection information necessary to select candidates for other deliveries 20, 21 to be proposed to the user U, and selects the candidates for other deliveries 20, 21 to be proposed to the user U based on the obtained selection information.This allows for the selection of carefully selected candidates for other deliveries 20, 21, making it easier to obtain approval from the user U than if they were selected randomly.This increases the opportunities to deliver a replacement hydrogen cartridge 3a and other deliveries 20, 21 together, further suppressing increases in the delivery costs of the hydrogen cartridge 3a.

[0011] The invention described in claim 3 is, for example, as shown in FIG. 2, in the hydrogen delivery system described in claim 2, The selection information is characterized in that it is information relating to the usage status of the facilities (fuel cell device 3, HEMS 12, central air-conditioning system 13) installed in the user's home 2.

[0012] According to the invention recited in claim 3, the selection information is information relating to the usage status of the equipment (fuel cell device 3, HEMS 12, central air conditioning system 13) installed in the user's home 2, and therefore the selection information is tailored to the lifestyle of the user U. In other words, since candidates for other deliveries 20, 21 to be proposed to the user U can be selected based on selection information that is tailored to the lifestyle of the user U, it is inevitable that approval from the user U will be more easily obtained. This increases the chances of delivering the replacement hydrogen cartridge 3a together with the other deliveries 20, 21, further suppressing increases in the delivery costs of the hydrogen cartridge 3a.

[0013] The invention described in claim 4 is, for example, as shown in FIG. 2, in the hydrogen delivery system described in claim 2, The selection information is characterized in that it is future event information relating to the user U residing in the user home 2.

[0014] According to the invention recited in claim 4, the selection information is future event information related to user U residing in the user's home 2, and therefore the selection information is tailored to event information in which user U plans to participate in the future. In other words, candidate other deliveries 20, 21 to be proposed to user U can be selected based on selection information that is tailored to the event information in which user U plans to participate in the future, which inevitably makes it easier to obtain approval from user U. This increases the chances of delivering a replacement hydrogen cartridge 3a together with other deliveries 20, 21, further suppressing increases in the delivery costs of hydrogen cartridges 3a.

[0015] The invention described in claim 5 is, for example, as shown in FIG. 1 and FIG. 3, in the hydrogen delivery system described in any one of claims 1 to 4, The other delivery items 20 are characterized by being ingredients 20 for cooking.

[0016] According to the invention of claim 5, since the other delivery items 20 are ingredients 20 for cooking, the mineral components of the mineral water produced by the blender 5 can be adjusted according to the ingredients 20, thereby improving the quality of the dish. This improves the satisfaction of the user U with the other delivery items 20, which in turn increases the chances of the replacement hydrogen cartridge 3a and the other delivery items 20 being delivered together, further suppressing the rise in the delivery costs of the hydrogen cartridge 3a.

[0017] The invention described in claim 6 is, for example, as shown in FIG. 1 and FIG. 3, in the hydrogen delivery system described in any one of claims 1 to 4, The other delivery items 21 are characterized in that they are plants 21 such as fresh flowers, potted flowers, and ornamental plants.

[0018] According to the invention of claim 6, since the other delivery items 21 are plants 21 such as fresh flowers, potted flowers, or ornamental plants, the mineral components of the mineral water produced by the blender 5 can be adjusted according to the type of plant 21, thereby improving the growing condition of the plant 21. This improves the satisfaction of the user U with the other delivery items 21, which in turn increases the chances of having a replacement hydrogen cartridge 3a and other delivery items 21 delivered together, further suppressing increases in the delivery costs of the hydrogen cartridge 3a. [Effects of the Invention]

[0019] According to the present invention, by combining the delivery of hydrogen cartridges with the delivery of other items that can utilize the wastewater from the fuel cell device, it is possible to effectively utilize the wastewater from the fuel cell device within the home while suppressing increases in the delivery costs of hydrogen cartridges. [Brief explanation of the drawings]

[0020] [Figure 1] FIG. 1 is a schematic diagram showing the configuration of a wastewater utilization system for reusing water from a fuel cell device. [Figure 2] FIG. 1 is a schematic diagram showing a part of the configuration of a hydrogen delivery system. [Figure 3] FIG. 10 is a schematic diagram showing another part of the configuration of the hydrogen delivery system. [Figure 4] FIG. 2 is a schematic diagram illustrating the configuration of a central management server. [Figure 5] 10 is a flowchart showing a flow from transmission of trigger information to production of mineral water. DETAILED DESCRIPTION OF THE INVENTION

[0021] Hereinafter, embodiments of the present invention will be described with reference to the drawings. However, although the embodiments described below are subject to various technically preferable limitations for carrying out the present invention, the technical scope of the present invention is not limited to the following embodiments and illustrated examples.

[0022] In Fig. 1, reference numeral 1 denotes a wastewater utilization system. This wastewater utilization system 1 is a system for utilizing wastewater from a fuel cell device 3 installed in a building 2 such as a house in the building 2. As shown in Fig. 1, for example, the wastewater utilization system 1 is configured to include the fuel cell device 3, a tank 4 for storing wastewater from the fuel cell device 3, and a compounder 5 for compounding mineral components into the water stored in the tank 4. Building 2 is the user's home where user U resides.

[0023] The fuel cell device 3 is a cogeneration system that uses a fuel cell (for example, a household fuel cell) and converts the chemical energy of fuel gas into electrical energy (i.e., generates electricity). The electricity generated by the fuel cell device 3 is supplied to the building 2. Specifically, the fuel cell device 3 is configured so that a hydrogen cartridge 3a filled with hydrogen as fuel gas can be attached and detached freely, and the fuel gas supplied from the hydrogen cartridge 3a can be reformed into hydrogen, and electrical energy can be generated from the hydrogen using a fuel cell stack. Water (pure water) is produced in the process of generating electrical energy from fuel gas in the fuel cell device 3. The water moves from the fuel cell device 3 to the tank 4 via a drain pipe.

[0024] The fuel cell device 3 is equipped with a fuel gauge 3b that displays the remaining amount of hydrogen used to generate electrical energy. When the remaining amount of hydrogen decreases, hydrogen can be replenished by replacing the hydrogen cartridge 3a. Data on the remaining amount of hydrogen in the hydrogen cartridge 3a currently in use is managed by the HEMS 12, which will be described later, and the user U can check the remaining amount data in the fuel cell device 3 on a display monitor (not shown) of the HEMS 12. That is, in this embodiment, the fuel gauge 3b in the fuel cell device 3 functions as a remaining amount management unit that manages the remaining amount data of the hydrogen cartridge 3a currently in use in cooperation with the HEMS 12. However, this is not limited to this, and the fuel cell device 3 may function as a remaining amount management unit independently using the fuel gauge 3b.

[0025] Tank 4 is a drainage tank that stores water (pure water) generated by power generation by fuel cell device 3, and is installed inside the housing of fuel cell device 3 or inside building 2. Tank 4 is connected to blender 5 by a water supply pipe, and the water in tank 4 is supplied to blender 5 inside building 2 by a water supply pump. That is, the fuel cell device 3 has a drainage facility that stores and discharges water that may be generated during power generation. The drainage facility has a water volume detection sensor that detects the amount of water stored and the amount of water discharged.

[0026] The blender 5 blends multiple types of mineral components with the water (raw water) supplied from the tank 4 to produce mineral water for drinking. By adjusting the amount of each type of mineral component during blending, it is possible to produce mineral water with different flavors.

[0027] The mineral components are filled in dedicated cartridges 5a, 5b, 5c, and 5d according to type, and can be used by inserting the outlet of the cartridge into the connecting part of the compounder 5 and discharging the components little by little from the cartridge. Alternatively, dedicated cartridges filled with multiple types of mineral components already mixed may be used.

[0028] Examples of the multiple types of mineral components (component ions) include, but are not limited to, calcium, sodium, potassium, magnesium, silicon, and the like. For example, calcium ions make something taste sweet in the right amount, but too much makes it feel heavy. Too many sodium ions make something taste salty, and too few make something sweet. Too many potassium ions make something taste salty, and too few make something sweet. Too few magnesium ions make something sweet, but too many make something bitter and astringent. The mineral components are filled and sealed in the dedicated cartridges 5a, 5b, 5c, and 5d in the form of liquid or powder, preferably in the form of liquid.

[0029] The hardness of water also varies depending on the total amount of magnesium and calcium contained in one liter of water; water with a total of 0-60 mg is considered soft water, 60-120 mg is considered medium hard water, 120-180 mg is considered hard water, and 180 mg or more is considered very hard water. Soft water is said to have no unpleasant taste and does not impair the flavor of ingredients when cooking. It is particularly suitable for Japanese cuisine, and is often used to make soup stock, simmer fish and vegetables, and cook rice. Almost all water in Japan is soft, and even tap water is soft. On the other hand, Western countries often have hard water, which is considered suitable for Western cuisine. It is often used for stewed meat dishes and pasta dishes.

[0030] Furthermore, it has been known that mineral components contained in water also affect plant growth, and the blend of multiple mineral components may be varied depending on the type of plant.

[0031] The blender 5 can automatically mix multiple types of mineral components into the raw water supplied from the tank 4 based on blending recipe information acquired from the central management server 10, which will be described later. This makes it possible to adjust not only the hardness but also the sweetness and saltiness to produce mineral water with a variety of flavors. In this embodiment, the mineral components can be automatically mixed with the raw water based on the blending recipe information, but the blender 5 may also be configured to allow the amount of mineral components to be manually adjusted. As described above, the compounder 5 may be provided with a communication unit such as a communication module to acquire compounding recipe information from the central management server 10, and may be communicatively connected to the home gateway 11 described later.

[0032] The blender 5 has a discharge port that discharges mineral water in which a plurality of types of mineral components are mixed. The mineral water is stored in a container such as a bottle 6 and can be used for drinking or cooking.

[0033] By providing a branch to the water supply pipe connecting the tank 4 and the mixer 5, the water (pure water) stored in the tank 4 can be supplied to various locations (kitchen, bathroom, washroom, etc.) within the building 2. In this case, however, it is assumed that a chlorine removal facility 4a is provided to add the required amount of chlorine to the water before it is discharged from the faucets located in various locations within the building 2. Pure water is effective in removing dirt and preventing limescale, so pure water coming out of, for example, a kitchen faucet 7 is suitable for rinsing wine glasses and other tableware. Also, pure water coming out of, for example, a shower 8 can be used to remove dirt from the body and prevent limescale from remaining. Also, here, a configuration has been described in which a branch is provided in the water supply pipe connecting the tank 4 and the compounder 5, so that the water stored in the tank 4 can be discharged from faucets located in various locations within the building 2, but this is not limiting, and the water stored in the tank 4 may be discharged from a dedicated faucet 9 that is provided independently of the faucets located in various locations within the building 2. In this case, the faucet of the dedicated faucet 9 may be configured to be able to be filled with detergent, so that the water produced by the fuel cell comes out of the faucet as water containing detergent. In addition, faucets may be installed in various locations within building 2 that can switch the water coming out of the faucet between, for example, tap water, purified water (tap water that has passed through a water purifier), and pure water containing detergent (water produced by a fuel cell to which detergent has been added).

[0034] The wastewater utilization system configured as described above is included in a hydrogen delivery system that delivers a replacement hydrogen cartridge 3a together with other delivery items 20 (21) to a user's home 2 where a fuel cell device 3 is installed. The hydrogen delivery system of this embodiment is configured mainly with a central management server 10, as shown in FIGS.

[0035] The central management server 10 comprehensively manages the hydrogen delivery system of this embodiment and is a central management device composed of a PC, dedicated devices, terminals, etc. The central management server 10 is connected to each component of the hydrogen delivery system via a communication network so that it can communicate with them. The central management server 10 includes a control unit 10a, a storage unit 10b, and a communication unit 10c. The units 10a to 10c are electrically connected via a bus or the like. The central management server 10 will be described in detail later.

[0036] The communication network of this embodiment may include various communication networks such as telephone networks, ISDN networks, optical fibers, mobile communication networks, communication satellite networks, CATV networks, and other dedicated lines, as well as an Internet service provider (i.e., the Internet) that connects them. It may also be a collective communication network in which various communication networks such as LANs (Local Area Networks), WANs (Wide Area Networks), WiFi (Wireless Fidelity), Bluetooth (registered trademark), and NFC (Near Field Communication) are connected to each other so that they can communicate with each other. The connection type may be wired, wireless, or a combination of wired and wireless.

[0037] Various types of equipment are installed in a building 2, which is a user's home. The fuel cell device 3 is one of these, and in addition, a HEMS 12 and a central air conditioning system 13 are also installed. These pieces of equipment are connected to a central management server 10 via a home gateway 11 so that they can communicate with each other.

[0038] The home gateway 11 is a device that combines the functions of a router to create connection settings to a provider, a wireless LAN function to enable Wi-Fi connection, a VoIP gateway that connects telephones and fax machines to send and receive voice calls and faxes, a relay function between the telephone network and the IP network, and a function as a line termination device for optical fiber lines. In addition, in this embodiment, a so-called modem with router function, which has both of the above functions, is used as the home gateway 11, but this is not limited to this, and the home gateway 11 may also be constructed using various devices such as routers and hubs that have the above functions.

[0039] The HEMS 12 is a Home Energy Management System (HEMS) and is an energy management means for comprehensively managing the supply and demand of energy such as electricity, water, and gas for the entire building 2. The HEMS 12 is equipped with the display monitor described above. The display monitor is a small, board-type computer system, and is installed, for example, on an inner wall of the building 2. The display monitor has functions necessary for energy management within the building 2, including an arithmetic processing unit, a display unit, and an input unit, and is connected to the distribution board so as to be able to communicate with the distribution board. The distribution board is connected to the grid power supply via power meters such as a power purchase wattmeter (forward flow wattmeter) and a power sale wattmeter (reverse flow wattmeter), as well as to the fuel cell device 3. This allows the display monitor to manage and control the grid power supply, the fuel cell device 3, privately generated power using a solar cell array or the like, stored power, and the like. The display monitor can also control various electrical appliances in the home connected via the distribution board. Therefore, the usage status of the fuel cell device 3, including remaining amount data in the hydrogen cartridge 3a and the water level detection sensor in the drainage equipment section, can be grasped by the HEMS 12, and this information is sent to the central management server 10 via the home gateway 11. In other words, in this embodiment, the central management server 10 and the fuel cell device 3 are indirectly connected so that they can communicate with each other. However, this is not limited to this, and the fuel cell device 3 may also be equipped with a communication module or the like and be connected so that it can communicate directly with the central management server 10. Water and gas usage can be measured by connecting the display monitor to a water meter or gas meter so that they can communicate with each other. To measure water usage in the kitchen, a water volume sensor is placed in the flow path leading to the kitchen. Similarly, to measure gas usage in the kitchen, a gas volume sensor is placed in the flow path leading to the kitchen. Furthermore, the information relating to the energy supply and demand in the user's home 2 displayed on the display monitor may be made available for confirmation on the user information terminal 15 used by the user U via the home gateway 11.

[0040] The whole-building air conditioning system 13 is a system for managing the air conditioning within the building 2, and is an air conditioning management means for comprehensively controlling and managing one or more air conditioning devices installed in the building 2. The whole-building air-conditioning system 13 is equipped with an operation terminal (not shown) that can be operated by the user U, and is a computer having a display device, an input device, a storage device, a microprocessor, etc. More specifically, the operation terminal may be a dedicated information terminal, a mobile phone (for example, a smartphone or feature phone), a PDA (Personal Digital Assistant), a desktop personal computer, a laptop personal computer, a palmtop personal computer, a tablet personal computer, etc. The operation terminal is connected to the home gateway 11 so as to be able to communicate with it. If the operation terminal is a dedicated information terminal, it is directly connected to the home gateway 11. If it is a smartphone or the like, it is connected to the home gateway 11 via a communication network. In this case, an application program for using the central air-conditioning system 13 is installed on the operation terminal such as a smartphone, and when this application program is started, the operation terminal and the home gateway 11 communicate with each other via the communication network to send and receive various signals and data.

[0041] The operation terminal may be the user information terminal 15 used by the user U. In other words, the user information terminal 15 used by the user U is any one of the mobile phone, PDA, and various personal computers cited as examples of the operation terminal.

[0042] The whole-building air conditioning system 13 is a system configuration that includes various equipment installed in the building 2 (room air conditioners, non-residential air conditioners, ducted air conditioners, floor heating, home gateway 11, etc.), an operating terminal, and a communication network. This allows the operation terminal to operate and manage the various types of air conditioning equipment installed in building 2. In addition, the operation terminal can grasp the usage status of the various types of air conditioning equipment, and this information is sent to the central management server 10 via the home gateway 11. In other words, in this embodiment, the central management server 10 and the operation terminal are connected in a state where they can communicate indirectly. However, because the central building air conditioning system 13 is configured to include the home gateway 11 as described above, it can also be said that the central building air conditioning system 13 itself is connected to the central management server 10 in a state where it can communicate directly.

[0043] User U receives services to support the user U's life according to the number of years that have passed since the construction of user home 2 and the user U's future age after the number of years has passed, which is the age of user U residing in user home 2. The services are provided, for example, by the construction company that built user home 2 or its contractor, and user U receives proposals for services based on information about services to support user U's life. Examples of information related to the service include information related to renovation of the user's home 2, information related to maintenance of the user's home 2, information related to relocation, and information related to events that the user U plans to hold in the future. Information related to these services is displayed on the display unit of the information terminal. The information terminal is a computer having a display device, an input device, a storage device, a microprocessor, etc. More specifically, in addition to dedicated information terminals, mobile phones such as smartphones, PDAs, various personal computers, etc. can be used as operation terminals. In this embodiment, a user information terminal 15 used by a user U is adopted as the information terminal.

[0044] Furthermore, information about the service is provided by the event information management server 14 to the user information terminal 15, which is an information terminal. Information about the service is displayed in a chronological table format, and the chronology displays information about renovations to the user's home 2, information about maintenance of the user's home 2, and information about relocation, sorted by year and month. The chronology also displays information about future events related to the user U (family), sorted by year and month. Future event information relating to user U (family) includes, for example, information relating to various events and anniversaries, such as annual events, children's events, and family birthdays. The event information management server 14 transmits information useful for future event information and information useful for renovating the user's home 2 to the user's information terminal 15. The timing of transmitting this information is based on a chronology, and as an event or the like approaches on the chronology, useful information is sent to the user's information terminal 15. Therefore, the user U can receive proposals for service information that is appropriate for the user U and the user's home 2 at the appropriate time without human intervention.

[0045] The event information management server 14, which provides information about services to user U (user information terminal 15), is connected to the central management server 10 via a communication network. Therefore, the central management server 10 can grasp the information about services (future event information about user U) sent from the event information management server 14 to the user information terminal 15.

[0046] In this embodiment, the compounder 5 is also communicably connected to the home gateway 11. Therefore, the central management server 10 and the compounder 5 are also communicably connected via the home gateway 11 and the communication network. As a result, when information related to a blending recipe for multiple types of mineral components is sent from the central management server 10 to the blender 5, the blender 5 automatically blends the multiple types of mineral components based on the blending recipe.The multiple types of mineral components are then mixed with the water discharged from the tank 4, thereby producing mineral water.

[0047] As described above, the central management server 10 comprises the control unit 10a, memory unit 10b, and communication unit 10c, and is configured to order at least a replacement hydrogen cartridge 3a when the remaining amount of hydrogen in the hydrogen cartridge currently in use in the fuel cell device 3 becomes low. It is also possible to order other deliveries 20, 21 along with the replacement hydrogen cartridge 3a. Orders for replacement hydrogen cartridges 3a and other deliveries 20, 21 are placed on a delivery company information terminal 18 used by delivery company D, which is communicatively connected to the central management server 10 via a communication network and delivers the replacement hydrogen cartridges 3a and other deliveries 20, 21 together.

[0048] Here, the other deliveries 20, 21 are, for example, cooking ingredients 20 and plants 21 such as fresh flowers, potted flowers, and ornamental plants. These are to be consumed or used by the user U in combination with the mineral water produced by the blender 5. That is, the cooking ingredients 20 are combined with mineral water to form a dish, which is then consumed by the user U. The plant 21 is also combined with mineral water and displayed by the user U in the user's home 2 for ornamental purposes.

[0049] The other delivered items are not limited to cooking ingredients 20 and plants 21, but are not particularly limited as long as they are consumed or used by the user U in combination with the mineral water produced by the blender 5. For example, the mineral water produced by the blender 5 may be combined with flavorings, carbon dioxide, sugar, etc. and consumed by the user U as a beverage, or may be combined with beauty ingredients or beauty oils and consumed or used by the user U as a beauty product. The mineral water may be combined with aroma oils and consumed or used as an aromatic product (relaxation product) by the user U.

[0050] The control unit 10a in the central management server 10 is composed of a CPU, a RAM (Random Access Memory), a ROM (Read Only Memory), and the like. The ROM stores various programs executed by the CPU. The CPU of the control unit 10a reads out various programs stored in the memory unit 10b, expands them into RAM, executes various processes according to the expanded programs, and centrally controls the operation of each means in this system.

[0051] The storage unit 10b in the central management server 10 is configured by a non-volatile memory, a hard disk, or the like. The storage unit 10b stores various programs executed by the control unit 10a, various data required for executing the programs, and the like.

[0052] The various programs include, for example, a trigger information acquisition program, a selection information acquisition program, a selection program, a candidate information transmission program, an acceptance / rejection information acquisition program, a delivery request information transmission program, a blending recipe derivation program, and a blending recipe information transmission program. These various programs function as one means of the system in cooperation with the control unit 10a, storage unit 10b, and communication unit 10c.

[0053] The various data includes various data required for screen generation, as well as other data and parameters required for the operation of this system. These various data include information such as personal information and transaction information of the user U, as well as information related to the delivery company D. In other words, the data includes information on the delivery destination and order destination of the replacement hydrogen cartridge 3a and other deliveries 20 and 21. These various data also include a large amount of information related to candidates for other deliveries 20, 21 to be proposed to user U. The information related to these candidates can be updated by the administrator of the hydrogen delivery system, allowing for a variety of product developments, such as new products, seasonal products, and limited-time products. Furthermore, the information related to these candidates may be categorized into various types and organized into a database to facilitate selection by the selection program described below. These various data also include a large amount of recipe information for blending multiple types of mineral components. The data may be classified according to preferences, such as the desired taste and hardness of the resulting mineral water, as well as other deliveries 20, 21 that can be combined with the mineral water, and may be organized into a database.

[0054] The communication unit 10c in the central management server 10 is composed of a communication module and the like. The communication unit 10c is configured to send and receive various signals and data to and from other devices (fuel cell device 3, HEMS 12, central air conditioning system 13, event information management server 14, user information terminal 15, delivery company information terminal 18, etc.) connected by wire or wirelessly via a communication network or home gateway 11.

[0055] The central management server 10 in this embodiment operates as follows. FIG. 5 is a flowchart showing the flow from the transmission of trigger information to the production of mineral water.

[0056] If the central management server 10 does not receive trigger information, it will not generally perform any operations related to hydrogen delivery, but operations related to hydrogen delivery can be performed by the administrator of the central management server 10. The trigger information is transmitted from the user U or the user's home 2 (step S1), and the central management server 10 receives the trigger information transmitted through the communication network via the communication unit 10c. The control unit 10a executes the trigger information acquisition program stored in the storage unit 10b and acquires the trigger information transmitted from the user's home 2 (step S2). The hydrogen delivery system of this embodiment is configured to start operations related to hydrogen delivery when the trigger information is acquired in this manner.

[0057] In this embodiment, trigger information refers to information that prompts the user to replace the hydrogen cartridge currently in use in the fuel cell device 3 in the user's home 2. As described above, the fuel gauge 3b of the fuel cell device 3 functions as a remaining amount management unit in cooperation with the HEMS 12. Therefore, information prompting the user to replace the hydrogen cartridge currently in use is sent by the HEMS 12 and home gateway 11 to the central management server 10 via the communications network. However, the trigger information for starting the hydrogen delivery operation in the hydrogen delivery system is not limited to this. That is, the user U may check the fuel cell device 3's fuel gauge 3b and use the user information terminal 15 to send information to the central management server 10 prompting the replacement of the hydrogen cartridge in use. In this case, an application program for utilizing the functions of the hydrogen delivery system is installed in the user information terminal 15, and when this application program is started, the user information terminal 15 and the central management server 10 communicate via a communication network to send and receive various signals and data.

[0058] The trigger information is linked to personal information of the user U. The personal information included in the trigger information is information for identifying the user U, and includes the name of the user U, as well as information such as the user ID and contact details. Furthermore, the memory unit 10b of the central management server 10 stores personal information, transaction information, etc. of the user U. Therefore, when trigger information is acquired, the control unit 10a compares the personal information in the trigger information with the personal information of the user U stored in the memory unit 10b, and identifies the user U who requires delivery of the hydrogen cartridge 3a, the model number of the hydrogen cartridge 3a, etc. In other words, by acquiring trigger information within the system, the trigger information acquisition program can compare the information with the information stored in memory unit 10b and determine which hydrogen cartridge 3a should be delivered to which user U. This trigger information acquisition program functions as trigger information acquisition means in the hydrogen delivery system in cooperation with control unit 10a, memory unit 10b, and communication unit 10c.

[0059] Once it has determined which hydrogen cartridge 3a should be delivered to which user U, the control unit 10a executes a selection information acquisition program and externally acquires the selection information necessary to select candidates for other deliveries 20, 21 to be proposed to the user U (step S3).

[0060] The selection information is information necessary to select candidates for other deliveries 20, 21, and in this embodiment refers to information related to the usage status of the equipment installed in the user's home 2 or future event information related to the user U residing in the user's home 2. In other words, the selection information includes information related to the energy supply and demand of the user's home 2 managed by the HEMS 12, information related to the usage status of the air conditioning equipment in the user's home 2 managed by the central air conditioning system 13, and future event information related to the user U (family) managed by the event information management server 14.

[0061] By executing the selection information acquisition program, the control unit 10a can exchange information with the home gateway 11 in the user's home 2 via the communication unit 10c and the communication network, and can acquire selection information from the HEMS 12 and the central air-conditioning system 13. Furthermore, by executing the selection information acquisition program, the control unit 10a can exchange information with the event information management server 14 via the communication unit 10c and the communication network, and can acquire selection information from the event information management server 14. In other words, upon receiving trigger information, the selection information acquisition program can externally acquire the selection information necessary to select other delivery items 20, 21 candidates to be proposed to user U. Such selection information acquisition program functions as a selection information acquisition means in the hydrogen delivery system in cooperation with control unit 10a, memory unit 10b, and communication unit 10c.

[0062] When the selection information is acquired from the outside, the control unit 10a executes a selection program and selects candidates for other deliveries 20, 21 to be proposed to the user U based on the selection information acquired from the outside (step S4).

[0063] The selection of candidates for the deliveries 20 and 21 is performed based on information relating to energy supply and demand at the user's home 2, for example. For example, when selecting candidate ingredients 20 for a dish, it is possible to ascertain the types of dishes that are commonly eaten at user's home 2 from the amounts of water and gas used (or electricity used in the case of an induction cooker) in the kitchen of user's home 2. That is, for example, stews and fried foods will inevitably use more gas, while dishes that require a lot of prep work or dishes that do not require cooking, such as salads and sashimi, will use more water. It is also possible to obtain information such as the high use of frozen foods when the microwave is used frequently and electricity usage is high. That is, when the selection program is executed, the types of dishes that are commonly eaten at the user's home 2 can be read from the information acquired from the HEMS 12, and candidates for ingredients 20 for the dishes to be delivered to the user's home 2 can be selected.

[0064] Furthermore, the selection of candidates for the deliveries 20 and 21 is performed based on information relating to the usage status of the air conditioning equipment in the user's home 2, for example. For example, when selecting candidate ingredients 20 for a dish, it is possible to know whether the user U feels hot or cold depending on how the air conditioning equipment is used, and it becomes easier to determine what type of dish is preferable for the user U. It is easy to select dishes that are suitable when air conditioning is used frequently, or dishes that are suitable when heating is used frequently. In other words, when the selection program is executed, the type of cuisine that is considered to be preferable for the user U can be read from the information acquired from the central air conditioning system 13, and candidate ingredients 20 for the cuisine to be delivered to the user's home 2 can be selected.

[0065] Furthermore, the selection of candidates for the deliveries 20 and 21 is performed based on, for example, future event information related to the user U (family). There are many annual events and children's events throughout the year. Also, the larger the family, the more birthdays there will be. Information about these upcoming events is often linked to seasonal concepts and Japanese and foreign customs and practices, making it easy to select dishes that take these event information elements into account. That is, when the selection program is executed, it is possible to read the type of cuisine that is likely to be preferred by the user U from the acquired future event information, and select candidate ingredients 20 for the cuisine to be delivered to the user's home 2. In the case of event information, other candidates for delivery are likely to include not only cooking ingredients 20 but also plants 21 such as fresh flowers, potted flowers, and ornamental plants.

[0066] By executing the selection program, the control unit 10a can select candidates for other delivery items 20, 21 that are suitable for delivery to the user U from among the candidates for other delivery items 20, 21 stored in the storage unit 10b. The number of candidates may be one or more. In other words, the selection program can select candidates for other delivery items 20, 21 to be proposed to user U based on the selection information acquired by executing the selection information acquisition program. Such a selection program functions as a selection means in the hydrogen delivery system in cooperation with control unit 10a and memory unit 10b. In this embodiment, the selection information used to select candidates for the other deliveries 20 and 21 is any one of information from the HEMS 12, information from the central air-conditioning system 13, and information from the event information management server 14, but one candidate may be selected by taking these three pieces of information into consideration. One or more pieces of each information may be selected as candidates to be proposed to the user U.

[0067] Furthermore, although not shown in the figure, when selecting candidates for other deliveries 20, 21 to be proposed to user U based on the selection information acquired by executing the selection information acquisition program, technology based on learning of artificial intelligence (AI) may be used. In other words, the control unit 10a may be able to determine the most suitable candidate for the user U from among multiple candidates stored in the memory unit 10b using a trained model 10d that has been machine-learned by running a selection program, with information on the selected candidate as input and information on the candidate actually selected by the user U as output.

[0068] When the selection program is executed and candidate information for other deliveries 20, 21 is selected, the control unit 10a executes a candidate information transmission program and transmits the candidate information for other deliveries 20, 21 to the user information terminal 15 used by the user U who sent the trigger information (step S5). That is, by executing the candidate information transmission program, the control unit 10a can exchange information with the user information terminal 15 via the communication unit 10c and the communication network, and can transmit candidate information of other deliveries 20, 21 to the user information terminal 15. Such candidate information transmission program functions as candidate information transmission means in the hydrogen delivery system in cooperation with the control unit 10a, the storage unit 10b, and the communication unit 10c. The candidate information for the other deliveries 20 and 21 may be one or more, and the candidate information transmitted to the user information terminal 15 is stored in the storage unit 10b as history data.

[0069] The user U looks at the candidate information for the other deliveries 20, 21 received by the user information terminal 15, decides whether or not to deliver the other deliveries 20, 21 together with the replacement hydrogen cartridge 3a, and sends the approval / disapproval information to the central management server 10 via the user information terminal 15 (step S6). Note that this type of information exchange is performed using the application program described above. If there are multiple candidates for the other deliveries 20, 21, an arbitrary candidate is selected from the multiple candidates and the acceptance / rejection information is transmitted. The consent / denial information refers to information that reflects the user U's intention of whether or not to consent to the delivery of the replacement hydrogen cartridge 3a and the delivery of the other deliveries 20, 21 being carried out together.

[0070] After executing the candidate information transmission program, the control unit 10a executes the approval / rejection information acquisition program stored in the storage unit 10b, and acquires the approval / rejection information transmitted from the user information terminal 15 (step S7). The acquired approval / rejection information is stored in the storage unit 10b. In other words, by executing the acceptance / rejection information acquisition program, the control unit 10a puts the system into a standby state for acceptance / rejection information, and can receive and acquire information (acceptance / rejection information) relating to the user U's acceptance / rejection of the candidate information for other deliveries 20, 21 from the user information terminal 15 via the communication unit 10c and the communication network. Such acceptance / rejection information acquisition program functions as acceptance / rejection information acquisition means in the hydrogen delivery system in cooperation with the control unit 10a, memory unit 10b, and communication unit 10c.

[0071] When the control unit 10a obtains information (acceptance / rejection information) regarding the user U's acceptance or rejection of the candidate information for other deliveries 20, 21 from the user information terminal 15, it executes a delivery request information sending program and sends delivery request information to the delivery company information terminal 18 used by delivery company D, requesting delivery of at least a replacement hydrogen cartridge 3a to the user's home 2 (steps S8, S9, S10). The content of the delivery request information differs depending on whether the user U has accepted the candidate information for the other deliveries 20 and 21. In other words, if the user U does not accept the candidate information for the other deliveries 20, 21, delivery request information including the contents of the delivery request for only the replacement hydrogen cartridge 3a will be sent to the delivery company information terminal 18 (step S9). On the other hand, if the user U accepts the candidate information for the other deliveries 20, 21, delivery request information including the contents of the delivery request for the replacement hydrogen cartridge 3a and the other deliveries 20, 21 will be sent to the delivery company information terminal 18 (step S10).

[0072] In other words, when the control unit 10a acquires the acceptance / rejection information (information relating to the user U's acceptance / rejection of the candidate information for other deliveries 20, 21) transmitted from the user information terminal 15, the control unit 10a executes a delivery request information transmission program to transmit, via the communication unit 10c and the communication network, delivery request information reflecting the content of the acceptance / rejection information to the delivery company information terminal 18 used by the delivery company D. Such a delivery request information transmission program functions as a delivery request information transmission means in the hydrogen delivery system in cooperation with the control unit 10a, the memory unit 10b, and the communication unit 10c.

[0073] When delivery company D receives delivery request information via delivery company information terminal 18 and delivers a replacement hydrogen cartridge 3a, it receives the replacement hydrogen cartridge 3a from hydrogen cartridge dealer 17 and delivers it to user home 2. If the delivery request information includes a delivery request for other deliveries 20, 21, it receives the other deliveries 20, 21 from sellers 16 of the other deliveries 20, 21 and delivers them to user home 2. It is preferable that the seller 16 of the other deliveries 20, 21 and the hydrogen cartridge dealer 17 are operated by the same business, and if the replacement hydrogen cartridge 3a and the other deliveries 20, 21 can be loaded onto the same delivery truck within the same warehouse, this is convenient for the delivery company D and also for the user U, as it reduces delivery costs. At least one of the distributor 16 and the hydrogen cartridge dealer 17 also handles the dedicated cartridges 5a, 5b, 5c, and 5d containing multiple types of mineral components. This allows users U to request the purchase of the dedicated cartridges 5a, 5b, 5c, and 5d, or to give the dedicated cartridges 5a, 5b, 5c, and 5d as a gift to users U who have requested other deliveries 20 and 21. The delivery company information terminal 18 used by the delivery company D is, for example, a mobile phone, a PDA, or any of various personal computers.

[0074] When the delivery request information has been sent to the delivery company information terminal 18 used by delivery company D, the control unit 10a executes the blending recipe derivation program to derive a blending recipe required to blend multiple types of mineral components (step S11). In other words, when the user U accepts the delivery of other deliveries 20, 21, the mineral components of the mineral water to be combined with the other deliveries 20, 21 must be optimized for the other deliveries 20, 21. For this reason, as described above, a large number of classified blending recipes are stored in the memory unit 10b, and when the blending recipe derivation program is executed, the blending recipe that is optimal for the other deliveries 20, 21 accepted by the user U is extracted from the memory unit 10b. In short, it is possible to derive blending recipe information for multiple types of mineral components required to produce mineral water that is optimal for combining with the other deliveries 20, 21. Such a blending recipe derivation program functions as blending recipe derivation means in the hydrogen delivery system in cooperation with the control unit 10a and the memory unit 10b.

[0075] When the optimum blending recipe information is derived, the control unit 10a executes a blending recipe information transmission program to transmit the blending recipe information to the blender 5 (step S12). That is, when the blending recipe derivation program is executed to acquire optimal blending recipe information, the control unit 10a executes the blending recipe information transmission program to transmit the blending recipe information to the home gateway 11 via the communication unit 10c and the communication network. In other words, the blending recipe information derived by the blending recipe derivation program and optimal for other deliveries 20, 21 can be transmitted to the blender 5. Such a blending recipe derivation program functions as blending recipe information transmission means in the hydrogen delivery system in cooperation with the control unit 10a, the storage unit 10b, and the communication unit 10c. The timing for transmitting the blending recipe information may be immediately after the delivery request information has been transmitted, or may be set to coincide with the delivery timing of the replacement hydrogen cartridge 3a and other deliveries 20 and 21 by delivery company D.

[0076] When the central management server 10 in this embodiment acquires trigger information transmitted from the user U or the user's home 2, it operates as described above. In the above-described operation flow of the central management server 10, steps S3 and S4 may be omitted. In that case, the selection of candidates for the deliveries 20 and 21 is performed by the administrator of the central management server 10. When candidates are selected by the administrator of the central management server 10 in this manner, it is not necessary to receive selection information from the HEMS 12, the central building air-conditioning system 13, or the event information management server 14. Therefore, the central management server 10 does not need to be connected to the HEMS 12, the central building air-conditioning system 13, or the event information management server 14 so that it can communicate with them.

[0077] Next, the compounder 5 that has received the compounding recipe information automatically compounds a plurality of mineral components according to the compounding recipe information (step S13). Then, the blender 5 automatically mixes the raw water supplied from the tank 4 with the multiple types of mineral components blended according to the blending recipe information to produce mineral water (step S14).

[0078] The mineral water prepared based on the optimum blending recipe information is stored in a container such as a bottle 6, and is combined with other delivered items 20, 21 and consumed or used by the user U.

[0079] If the other delivery is a cooking ingredient 20, it is combined with mineral water to make a dish and is consumed by user U. For example, if the ingredient 20 for a dish is a dish from a certain region of Japan, multiple types of mineral components can be mixed to match the mineral components of natural water in that region, allowing the dish to be cooked using water that is suitable for that dish.

[0080] If the other delivery item is a plant 21 such as a fresh flower, a potted flower, or an ornamental plant, it is combined with mineral water and displayed by the user U in the user's home 2 for ornamental use. For example, if the plant 21 is a plant from a certain region of Japan, multiple types of mineral components can be mixed to match the mineral components of the natural water in that region, so that the plant 21 can grow using water that is suitable for that plant 21.

[0081] According to this embodiment, the following excellent effects are achieved. In other words, when the remaining amount of hydrogen in the hydrogen cartridge in use becomes low, the delivery request information sending means sends information to the delivery company information terminal 18 requesting delivery of at least the replacement hydrogen cartridge 3a, out of the replacement hydrogen cartridge 3a and other deliveries 20, 21, to the user's home 2, so that the delivery of the replacement hydrogen cartridge 3a and the other deliveries 20, 21 can be carried out together. The blender 5 produces mineral water by blending and mixing multiple types of mineral components with the water discharged from the drainage equipment section 4 of the fuel cell device 3, and other deliveries 20, 21 are combined with the mineral water produced by the blender 5 and consumed or used by the user, so that the wastewater from the fuel cell device 3 can be combined with other deliveries 20, 21 and effectively used within the home. This allows for effective use of wastewater from the fuel cell device 3 within the home while suppressing increases in delivery costs for the hydrogen cartridges 3a, which will ultimately contribute to the further spread of the fuel cell device 3 in the future.

[0082] Furthermore, upon receiving trigger information prompting the replacement of the hydrogen cartridge in use, the central management server 10 externally obtains the selection information necessary to select candidates for other deliveries 20, 21 to be proposed to the user U, and selects the candidates for other deliveries 20, 21 to be proposed to the user U based on the obtained selection information, thereby enabling the selection of carefully selected candidates for other deliveries 20, 21, which makes it easier to obtain approval from the user U than if they were selected at random. This increases the opportunities to deliver the replacement hydrogen cartridge 3a and other deliveries 20, 21 together, further suppressing increases in the delivery costs of the hydrogen cartridge 3a.

[0083] Furthermore, because the selection information is information related to the usage status of the equipment installed in the user's home 2 (fuel cell device 3, HEMS 12, central air conditioning system 13), the selection information is tailored to the lifestyle of user U. In other words, since candidates for other deliveries 20, 21 to be proposed to user U can be selected based on selection information that is tailored to the lifestyle of user U, it is inevitable that approval from user U will be more easily obtained. This increases the chances of delivering the replacement hydrogen cartridge 3a together with other deliveries 20, 21, further suppressing increases in the delivery costs of the hydrogen cartridge 3a.

[0084] Furthermore, because the selection information is future event information related to user U residing in user home 2, the selection information is tailored to event information that user U plans to participate in in the future. In other words, candidate deliveries 20, 21 to be proposed to user U can be selected based on selection information that is tailored to the event information that user U plans to participate in in the future, which inevitably makes it easier to obtain approval from user U. This increases the chances of delivering replacement hydrogen cartridge 3a and other deliveries 20, 21 together, further reducing the increase in delivery costs for hydrogen cartridge 3a.

[0085] Furthermore, since the other delivery items 20 are cooking ingredients 20, the mineral components of the mineral water produced by the blender 5 can be adjusted according to the cooking ingredients 20, thereby improving the quality of the dish. This improves the satisfaction of the user U with the other delivery items 20, which in turn increases the chances of the replacement hydrogen cartridge 3a and the other delivery items 20 being delivered together, further suppressing increases in the delivery costs of the hydrogen cartridge 3a.

[0086] Furthermore, since the other delivery items 21 are plants 21 such as fresh flowers, potted flowers, or ornamental plants, the mineral components of the mineral water produced by the blender 5 can be adjusted according to the type of plant 21, thereby improving the growing condition of the plant 21. This improves the satisfaction of the user U with the other delivery items 21, which in turn increases the chances of delivery of a replacement hydrogen cartridge 3a together with the other delivery items 21, further suppressing increases in the delivery costs of the hydrogen cartridge 3a.

[0087] In recent years, there has been a demand for the realization of a carbon-neutral society by promoting carbon neutrality, which reduces carbon dioxide emissions to virtually zero, and for the achievement of the SDGs (Sustainable Development Goals), and the construction industry is also working to use wooden buildings, which have lower carbon dioxide emissions.The hydrogen delivery system of this embodiment contributes to the spread of fuel cell devices that reduce carbon dioxide emissions, and can therefore contribute to the realization of a carbon-neutral society by promoting carbon neutrality and the achievement of the SDGs. [Explanation of symbols]

[0088] 1 Wastewater utilization system 2. Building (user's home) 3 Fuel cell device 3a Hydrogen Cartridge 3b Fuel Gauge 4 Tank 5. Mixer 5a dedicated cartridge 5b dedicated cartridge 5c dedicated cartridge 5d dedicated cartridge 6 bottles 10 Central Management Server 10 11 Home Gateway 12 HEMS 13 Whole building air conditioning system 14 Event information management server 15 User information terminal 16 Distributors 17 Hydrogen cartridge dealers 18 Information terminal for delivery companies 20 Cooking Ingredients 21 Plants U User D Shipping company

Claims

1. A hydrogen delivery system that delivers replacement hydrogen cartridges and other deliveries to a user's home where a fuel cell device is installed that is configured so that hydrogen cartridges filled with hydrogen for fuel cells can be attached and detached, the fuel cell device has a remaining amount management unit that manages remaining amount data of the hydrogen cartridge during use, and a drainage equipment unit that stores and discharges water generated during power generation, The user's home is provided with a compounder that generates mineral water by compounding and mixing a plurality of mineral components with the water discharged from the drainage equipment unit, The other delivery is to be consumed or used by the user in combination with the mineral water produced by the dispenser; a central management server communicatively connected to the fuel cell device and the compounder; a delivery company information terminal that is communicably connected to the central management server and that is used by a delivery company that delivers the replacement hydrogen cartridge together with the other delivery item; The central management server a delivery request information sending means for sending, when the remaining amount of hydrogen in the hydrogen cartridge in use becomes low, information to the delivery company information terminal requesting delivery of the replacement hydrogen cartridge and at least the replacement hydrogen cartridge among the other deliveries to the user's home; a blending recipe deriving means for deriving blending recipe information of a plurality of mineral components necessary to produce mineral water that is optimal for combining with the other delivery; a blending recipe information transmitting means for transmitting the blending recipe information derived by the blending recipe deriving means to the blender.

2. 10. The hydrogen delivery system of claim 1, a user information terminal connected to the central management server so as to be capable of communicating with the user, the user information terminal being used by the user residing in the user's home; The central management server a trigger information acquisition means for acquiring trigger information from the remaining amount management unit to prompt replacement of the hydrogen cartridge in use; a selection information acquisition means for acquiring, from an external source, selection information necessary for selecting the other delivery candidates to be proposed to the user, in response to acquisition of the trigger information; a selection means for selecting candidates for the other delivery items to be proposed to the user based on the selection information acquired by the selection information acquisition means; candidate information transmitting means for transmitting candidate information of the other delivery items selected by the selecting means to the user information terminal; and an acceptance / rejection information acquisition means for acquiring information relating to the user's acceptance / rejection of the candidate information of the other delivery from the user information terminal, The delivery request information transmitting means The acceptance / rejection information acquisition means acquires information relating to the user's acceptance / rejection of the candidate information of the other delivery items, If the user agrees to the candidate information for the other delivery item, information requesting delivery of the replacement hydrogen cartridge and the other delivery item to the user's home is transmitted to the delivery company information terminal; A hydrogen delivery system characterized in that if the user does not accept the candidate information for other delivery items, information requesting delivery of only the replacement hydrogen cartridge to the user's home is sent to the delivery company information terminal.

3. 3. The hydrogen delivery system of claim 2, The hydrogen delivery system is characterized in that the selection information is information relating to the usage status of the equipment installed in the user's home.

4. 3. The hydrogen delivery system of claim 2, The hydrogen delivery system is characterized in that the selection information is information about future events related to the user residing in the user's home.

5. 5. The hydrogen delivery system according to claim 1, A hydrogen delivery system, wherein the other delivered items are ingredients for cooking.

6. 5. The hydrogen delivery system according to claim 1, A hydrogen delivery system characterized in that the other delivered items are plants such as fresh flowers, potted flowers, and ornamental plants.

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