Carbon dioxide emission permit transaction assistance system and carbon dioxide emission permit transaction assistance method

Abstract

A carbon dioxide emission permit transaction assistance system (8) is provided with: a management system (10) having a token issuing unit (10A); and a manager wallet (20) corresponding to the management system (10). A token issuing unit (10A) issues a token on the basis of a consumption signal when a user account corresponds to a user wallet (40) and a consumption signal for notifying the consumption of carbon dioxide is transmitted from a user terminal (30) corresponding to the user account to a management system (10). The management system (10) gives an instruction to store the issued token in the user wallet (40).

Description

Technical Field

[0001] The present disclosure relates to a carbon dioxide emission rights trading assistance system and a carbon dioxide emission rights trading assistance method. Background Art

[0002] Patent document 1 discloses a carbon dioxide emission rights trading system. The system disclosed in patent document 1 is composed of a trading site and a plurality of trading terminals. In the system, the plurality of trading terminals are provided with a unit for sending a sell order and a buy order containing trading conditions of carbon dioxide emission rights to the trading site, and a unit for receiving information indicating the result of the transaction from the trading site and outputting the information. In the system, the trading site is provided with an acceptance unit for accepting sell orders and buy orders of carbon dioxide emission rights from the trading terminal, a matching unit for determining orders matching the trading conditions, and the like.

[0003] Prior art literature

[0004] Patent Literature

[0005] Patent Document 1: Japanese Patent Application Publication No. 2002-149978 Summary of the invention

[0006] Problem that the invention aims to solve

[0007] The trading system disclosed in Patent Document 1 is a trading system in which a trading site matches the trading conditions of a sell order with a buy order when trading carbon dioxide emission rights. In this trading system, an entity without emission rights cannot obtain emission rights even if it consumes (reduces) carbon dioxide, and an entity with emission rights cannot increase emission rights even if it consumes (reduces) carbon dioxide. Therefore, it is difficult to promote the consumption (reduction) of carbon dioxide, and there is room for improvement.

[0008] An object of the present invention is to provide a technology that can easily promote the consumption (reduction) of carbon dioxide.

[0009] Solutions for solving problems

[0010] A carbon dioxide emission rights trading support system according to one embodiment of the present invention includes:

[0011] A management system having a token issuing unit for issuing tokens; and

[0012] The administrator wallet corresponds to the management system.

[0013] In which, when a user account corresponds to a user wallet and a consumption signal for notifying the consumption of carbon dioxide is sent from a user terminal corresponding to the user account to the management system, the token issuing unit issues the token based on the consumption signal, and the management system instructs the issued token to be kept in the user wallet.

[0014] A method for supporting carbon dioxide emission rights trading according to one embodiment of the present invention uses a management system and a manager wallet corresponding to the management system, wherein the management system has a token issuing unit for issuing tokens.

[0015] When a user account corresponds to a user wallet and a consumption signal for notifying the consumption of carbon dioxide is sent from a user terminal corresponding to the user account to the management system, the token issuing unit issues the token based on the consumption signal, and the management system instructs the issued token to be kept in the user wallet.

[0016] Effects of the Invention

[0017] The present invention tends to promote the consumption (reduction) of carbon dioxide. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is an explanatory diagram schematically showing a trading system to which the carbon dioxide emission rights trading supporting system according to the first embodiment is applied.

[0019] Figure 2 So with Figure 1 Different viewpoints to illustrate Figure 1 An illustration of the trading system.

[0020] Figure 3 (A) is an explanatory diagram briefly showing the correspondence between the manager account and the manager wallet stored in the blockchain. Figure 3 (B) is an explanatory diagram briefly showing the correspondence between each user account and each user wallet stored in the blockchain. Figure 3 (C) is an explanatory diagram briefly showing the correspondence between each emitter account and each emitter wallet stored in the blockchain.

[0021] Figure 4 Yes Description Figure 1 An explanatory diagram of data exchange among a management system, a user terminal, an emitter terminal, and each wallet in a transaction system.

[0022] Figure 5 It is a description of Figure 4 An illustration of the exchange of data in different methods. DETAILED DESCRIPTION

[0023] An example of implementation is listed in the following [1] to

[20] .

[0024] [1] A carbon dioxide emission rights trading auxiliary system comprising:

[0025] A management system having a token issuing unit for issuing tokens; and

[0026] The administrator wallet corresponds to the management system.

[0027] In which, when a user account corresponds to a user wallet and a consumption signal for notifying the consumption of carbon dioxide is sent from a user terminal corresponding to the user account to the management system, the token issuing unit issues the token based on the consumption signal, and the management system instructs the issued token to be kept in the user wallet.

[0028] The above-mentioned support system [1] can provide rewards to users who contribute to the consumption (reduction) of carbon dioxide in the form of tokens granted to the user's wallet.

[0029] [2] A carbon dioxide emission rights trading support system according to [1], wherein:

[0030] When a sale request for requesting to sell the token stored in the user wallet is notified to the management system from the user terminal, the management system transfers the token from the user wallet to the administrator wallet based on the sale request.

[0031] The auxiliary system of [2] above performs the transfer of tokens from the user wallet to the administrator wallet based on the request. As a result, the tokens kept by the user wallet can be transferred to the administrator wallet at any time based on the sale request, so that users can use the tokens more freely.

[0032] [3] A carbon dioxide emission rights trading support system according to [2], wherein:

[0033] When an emitter account corresponds to an emitter wallet and a purchase request for purchasing the token is notified to the management system from an emitter terminal corresponding to the emitter account, the management system transfers the token from the manager wallet to the emitter wallet based on the purchase request.

[0034] In the auxiliary system of [3] above, when there is a sale request from the user terminal and a purchase request from the emitter terminal, the management system executes the transfer of tokens from the manager wallet to the emitter wallet based on the request. As a result, the tokens in the user wallet can be temporarily transferred to the manager wallet and then transferred to the emitter wallet. Even if the time of the sale request and the purchase request are staggered, the auxiliary system can easily transfer the tokens in the user wallet to the emitter wallet.

[0035] [4] A carbon dioxide emission rights trading support system according to [1] or [2], wherein:

[0036] When an emitter account corresponds to an emitter wallet, and a purchase request for purchasing the token is notified to the management system from the emitter terminal corresponding to the emitter account, and a sale request for selling the token held by the user wallet is notified to the management system from the user terminal, the management system transfers the token from the user wallet to the emitter wallet based on the purchase request and the sale request.

[0037] In the auxiliary system of [4] above, when there is a selling request from the user terminal and a purchasing request from the emitter terminal, the management system executes the transfer of tokens from the user wallet to the emitter wallet based on the request. As a result, the tokens can be transferred from the user wallet to the emitter wallet without the temporary storage in the manager wallet. Therefore, the auxiliary system can further reduce the burden on the manager wallet.

[0038] [5] A carbon dioxide emission rights trading support system according to [3] or [4], wherein:

[0039] The management system comprises a certificate issuing unit.

[0040] In the case where the token is stored in the emitter wallet, after an issuance request for requesting the issuance of a certificate for emission rights is notified from the emitter terminal to the management system, the management system deletes the token stored in the emitter wallet based on the issuance request, and the certificate issuing unit issues the certificate for emission rights to the emitter account.

[0041] The auxiliary system of [5] described above is able to prove, through the emission rights certificate, that the entity operating the emitter terminal (emitter) has utilized the token and has obtained the emission rights from a third party.

[0042] [6] A carbon dioxide emission rights trading support system according to any one of [1] to [5], wherein:

[0043] The management system comprises a certificate issuing unit.

[0044] The certificate issuing unit issues a consumption certificate to the user account based on the consumption signal. The auxiliary system of [6] can issue a consumption certificate to the user account based on the consumption signal, so that the consumption certificate can be used as a proof material to prove that the entity (user) corresponding to the user account has contributed to the consumption of carbon dioxide.

[0045] [7] A carbon dioxide emission rights trading support system according to any one of [1] to [6], wherein:

[0046] The user terminal generates the consumption signal based on a monitoring result of a consumption monitoring unit for monitoring the carbon dioxide consumption of the user, and transmits the consumption signal.

[0047] The auxiliary system of [7] described above can issue tokens in an amount that matches actual consumption conditions in a manner that reflects the consumption amount obtained with high accuracy based on the monitoring results of the consumption monitoring unit.

[0048] [8] The carbon dioxide emission rights trading support system according to any one of [1] to [7], wherein:

[0049] The token issuing unit issues the token with a prescribed validity period, and includes an invalidation unit that invalidates the token when the validity period set for the token has passed.

[0050] The auxiliary system of [8] described above can use the tokens within a specified period of time when the tokens are issued based on the consumption signal.

[0051] [9] The carbon dioxide emission rights trading support system according to any one of [1] to [8], wherein:

[0052] The management system hashes at least one of the historical records of the consumption signal and the historical records related to the transaction of the token and records them on the blockchain.

[0053] The auxiliary system [9] described above can use blockchain to manage at least one of the historical records of consumption signals and historical records related to token transactions, thereby preventing the tampering of historical records and enabling more stable operation of the system.

[0054]

[10] A method for assisting carbon dioxide emission rights trading, using a management system and a manager wallet corresponding to the management system,

[0055] The management system includes a token issuing unit for issuing tokens.

[0056] When a user account corresponds to a user wallet and a consumption signal for notifying the consumption of carbon dioxide is sent from a user terminal corresponding to the user account to the management system, the token issuing unit issues the token based on the consumption signal, and the management system instructs the issued token to be kept in the user wallet.

[0057] The carbon dioxide emission rights trading support method

[10] described above can provide rewards to users who contribute to the consumption (reduction) of carbon dioxide in the form of tokens granted to the user's wallet.

[0058]

[11] The method for supporting carbon dioxide emission trading according to

[10] , wherein:

[0059] When a sale request for requesting to sell the token stored in the user wallet is notified to the management system from the user terminal, the management system transfers the token from the user wallet to the administrator wallet based on the sale request.

[0060] The carbon dioxide emission rights trading supporting method of the above-mentioned

[11] has the same effect as the carbon dioxide emission rights trading supporting system of the above-mentioned [2].

[0061]

[12] A method for supporting carbon dioxide emission trading according to

[11] , wherein:

[0062] When an emitter account corresponds to an emitter wallet and a purchase request for purchasing the token is notified to the management system from an emitter terminal corresponding to the emitter account, the management system transfers the token from the manager wallet to the emitter wallet based on the purchase request.

[0063] The carbon dioxide emission rights trading supporting method of the above-mentioned

[12] has the same effect as the carbon dioxide emission rights trading supporting system of the above-mentioned [3].

[0064]

[13] The method for supporting carbon dioxide emission trading according to

[10] or

[11] , wherein:

[0065] When an emitter account corresponds to an emitter wallet, and a purchase request for purchasing the token is notified to the management system from the emitter terminal corresponding to the emitter account, and a sale request for selling the token held by the user wallet is notified to the management system from the user terminal, the management system transfers the token from the user wallet to the emitter wallet based on the purchase request and the sale request.

[0066] The carbon dioxide emission rights trading supporting method of the above-mentioned

[13] has the same effect as the carbon dioxide emission rights trading supporting system of the above-mentioned [4].

[0067]

[14] The method for supporting carbon dioxide emission trading according to

[12] or

[13] , wherein:

[0068] The management system comprises a certificate issuing unit.

[0069] In the case where the token is stored in the emitter wallet, after an issuance request for requesting the issuance of a certificate for emission rights is notified from the emitter terminal to the management system, the management system deletes the token stored in the emitter wallet based on the issuance request, and the certificate issuing unit issues the certificate for emission rights to the emitter account.

[0070] The carbon dioxide emission rights trading supporting method of the above-mentioned

[14] has the same effect as the carbon dioxide emission rights trading supporting system of the above-mentioned [5].

[0071]

[15] The method for supporting carbon dioxide emission rights trading according to any one of

[10] to

[14] , wherein:

[0072] The management system comprises a certificate issuing unit.

[0073] The certificate issuing unit issues a consumption certificate to the user account based on the consumption signal.

[0074] The carbon dioxide emission rights trading supporting method of the above-mentioned

[15] has the same effect as the carbon dioxide emission rights trading supporting system of the above-mentioned [6].

[0075]

[16] The method for supporting carbon dioxide emission rights trading according to any one of [9] to

[15] , wherein:

[0076] The user terminal generates the consumption signal based on a monitoring result of a consumption monitoring unit for monitoring the carbon dioxide consumption of the user, and transmits the consumption signal.

[0077] The carbon dioxide emission rights trading supporting method of the above-mentioned

[17] has the same effect as the carbon dioxide emission rights trading supporting system of the above-mentioned [7].

[0078]

[17] The method for supporting carbon dioxide emission rights trading according to any one of

[10] to

[16] , wherein:

[0079] The token issuing unit issues the token in a manner that specifies a validity period,

[0080] The token issuing unit includes a revocation unit configured to invalidate the token when the validity period specified for the token has elapsed.

[0081] The carbon dioxide emission rights trading supporting method of the above-mentioned

[17] has the same effect as the carbon dioxide emission rights trading supporting system of the above-mentioned [8].

[0082]

[18] The method for supporting carbon dioxide emission rights trading according to any one of

[10] to

[17] , wherein:

[0083] The management system hashes at least one of the historical records of the consumption signal and the historical records related to the transaction of the token and records them on the blockchain.

[0084] The carbon dioxide emission rights trading supporting method of the above-mentioned

[18] has the same effect as the carbon dioxide emission rights trading supporting system of the above-mentioned [9].

[0085]

[19] A program for a carbon dioxide emission rights trading auxiliary system, wherein:

[0086] The carbon dioxide emission rights trading support system comprises: a management system having a token issuing unit for issuing tokens; and a manager wallet corresponding to the management system.

[0087] When a user account corresponds to a user wallet and a consumption signal for notifying the consumption of carbon dioxide is sent from a user terminal corresponding to the user account to the management system, the program causes the token issuing unit to issue the token based on the consumption signal and instructs the management system to keep the issued token in the user wallet.

[0088] The procedure of the above-mentioned

[19] has the same effect as the carbon dioxide emission rights trading support system of the above-mentioned [1].

[0089]

[20] A program for a carbon dioxide emission rights trading auxiliary system, wherein:

[0090] The carbon dioxide emission rights trading support system comprises: a management system having a token issuing unit for issuing tokens; an administrator wallet corresponding to the management system; and a user wallet corresponding to a user account.

[0091] The emission rights trading support system is a system that causes the token issuing unit to issue the token based on the consumption signal to the user wallet when a consumption signal for notifying the consumption amount of carbon dioxide is transmitted to the management system.

[0092] The program causes the user terminal corresponding to the user account to perform a process of generating the consumption signal and transmitting the consumption signal to the management system.

[0093] The above-mentioned program

[20] enables the user terminal to generate and send a consumption signal.

[0094] <First Embodiment>

[0095] 1. Structure of the CO2 Emission Trading System

[0096] Figure 1 1 is an explanatory diagram conceptually showing a carbon dioxide emission rights trading system 1. The carbon dioxide emission rights trading system 1 is also referred to as a trading system 1. In the trading system 1 described below as a representative example, at least a management system 10 and a manager wallet 20 ( Figure 3 ) to realize the carbon dioxide emission trading auxiliary system8. In addition, Figure 1 and Figure 2 In the example, the administrator wallet 20 is omitted. Figure 3 ). The carbon dioxide emission rights trading auxiliary system 8 is also referred to as the auxiliary system 8 for short.

[0097] The transaction system 1 has a plurality of nodes 2. Each node 2 is a device for implementing a blockchain. The blockchain implemented by the plurality of nodes 2 may be a public chain, a private chain, or other types of blockchains.

[0098] In the case where the transaction system 1 is implemented as a private chain, when each transaction described later is executed, a transaction representing the content of the transaction is generated, and the generated transaction is verified and authenticated by multiple nodes 2. In addition, a manager node (for example, node 2 constituting the management system 10) or a node specified by the manager node calculates a hash value, and uses the calculated hash value to form a block with the authenticated items. The constituted block is appended to the blockchain and is stored in a distributed manner in each node 2. On the other hand, in the case where the transaction system 1 is implemented as a public chain, when each transaction described later is executed, a transaction representing the content of the transaction is generated, and the generated transaction is verified and authenticated by node 2. In addition, any miner calculates a hash value, and uses the calculated hash value to form a block with the authenticated items. The constituted block is appended to the blockchain and is stored in a distributed manner in each node 2.

[0099] Each node 2 constituting the trading system 1 is constituted by an information processing device such as a server or a personal computer. Figure 1 Six nodes 2 are shown in the example, but the number of nodes 2 can be more than Figure 1There are many examples, and you can also compare Figure 1 There are few examples.

[0100] Some of the multiple nodes 2 constitute the management system 10. The management system 10 has a control unit 11, a communication unit 12, a storage unit 13, an input unit 14, an output unit 15, etc. The storage unit 13 is a device for storing programs, parameters, etc. The control unit 11 executes various functions and processes of the node 2 according to various data such as programs and parameters stored in the storage unit 13. The communication unit 12 is a device for performing wired or wireless communication with an external device in cooperation with the control unit 11. The input unit 14 is an input device such as an operating device, and the output unit 15 is an output device such as a display device. The management system 10 can be composed of one device (for example, a server device) or a plurality of devices.

[0101] Some of the nodes 2 constitute a user terminal 30. The user terminal 30 includes a control unit 31, a communication unit 32, a storage unit 33, an input unit 34, an output unit 35, etc. The hardware configuration of the user terminal 30 may be the same as or different from that of the management system 10.

[0102] Some of the plurality of nodes 2 constitute the emitter terminal 50. The emitter terminal 50 has a control unit 51, a communication unit 52, a storage unit 53, an input unit 54, an output unit 55, etc. The hardware structure of the emitter terminal 50 may be the same as or different from the hardware structure of the management system 10.

[0103] exist Figure 1 In the figure, the specific structure of the node 2 other than the management system 10, the user terminal 30, and the emitter terminal 50 is omitted, but any node 2 whose specific structure is omitted may be configured as the user terminal 30 or the emitter terminal 50. Figure 1 The user terminal 30 shown may also have the function of the discharger terminal 50. The discharger terminal 50 may also have the function of the user terminal 30.

[0104] like Figure 2 In this way, the management system 10 includes a token issuing unit 10A and a certificate issuing unit 10B. In the representative example described below, the control unit 11 ( Figure 1 ) functions as a token issuing unit 10A and a certificate issuing unit 10B. The token issuing unit 10A has the function of issuing tokens. The certificate issuing unit 10B has the function of issuing emission rights certificates and consumption certificates. Tokens are virtual currencies or rights used for transactions in the trading system 1.

[0105] like Figure 2In this way, a carbon dioxide consumption unit 44 that consumes carbon dioxide and a consumption monitoring unit 42 that monitors the amount of carbon dioxide consumed by the carbon dioxide consumption unit 44 are provided at a location equipped with the user terminal 30. The carbon dioxide consumption unit 44 is exemplified by a methanation device that produces methane from hydrogen and carbon dioxide. The carbon dioxide consumption unit 44 is not limited to a known methanation device, and any device that converts or generates other substances by consuming carbon dioxide may be used. The consumption monitoring unit 42 may be any structure that can detect the amount of carbon dioxide consumed (reduced) by the carbon dioxide consumption unit 44. For example, when the carbon dioxide consumption unit 44 is the above-mentioned methanation device, the consumption monitoring unit 42 detects the amount of carbon dioxide consumed (reduced) by the methanation device in the process of producing methane.

[0106] In this embodiment, if Figure 3 As shown in (A), a manager account is allocated to the manager, and a manager wallet 20 is allocated to the manager account. The manager account and the manager wallet are stored in the blockchain 100 in correspondence. The manager account is identification information for identifying the manager. The manager is the subject of the issuance of management tokens. In the blockchain 100, if the manager account is determined, the content of the manager wallet 20 is determined. The manager wallet 20 is a wallet corresponding to the management system 10, a virtual place for storing tokens (manager's tokens) handled by the management system 10, and a virtual place corresponding to the manager account.

[0107] In this embodiment, a user account is allocated to each user, and a user wallet 40 is allocated to each user account. Figure 3 As shown in (B), each user account is stored in the blockchain 100 in correspondence with each user wallet. The user account is an account corresponding to the user wallet, and is identification information for identifying the user. The user is the subject who receives the issuance of tokens by consuming carbon dioxide. The user wallet is a virtual place for storing tokens held by the user, and is a virtual storage place corresponding to the user account. In the blockchain 100, for example, if the user account A1 is determined, the content of the user wallet A2 corresponding to the user account A1 is determined. The user terminal 30 is a terminal used when conducting communications and transactions based on the user account, and is a terminal corresponding to the user account. The user terminal 30 may include a consumption monitoring unit 42 ( Figure 2 ) and can also be separated from the consumption monitoring unit 42.

[0108] In this embodiment, each emitter is assigned an emitter account, and the emitter account corresponds to an emitter wallet 60. Figure 3As in (C), each emitter account is stored in blockchain 100 in correspondence with each emitter wallet. The emitter account is an account corresponding to the emitter wallet, and is identification information for identifying the emitter. The emitter is the subject who purchases the token. In addition, a user sometimes becomes an emitter, and an emitter sometimes becomes a user. The emitter wallet is a virtual place for storing tokens held by the emitter, and is a virtual storage place corresponding to the emitter account. In blockchain 100, for example, if the emitter account P1 is determined, the content of the emitter wallet P2 corresponding to the emitter account P1 is determined. The emitter terminal 50 ( Figure 1 etc.) are terminals used for communication and transactions based on emitter accounts.

[0109] 2. Operation of the CO2 Emission Trading System 1

[0110] In the transaction system 1, the user terminal 30 generates a consumption signal based on the monitoring result of the consumption monitoring unit 42 and transmits the consumption signal. When the carbon dioxide consumption unit 44 consumes carbon dioxide, the consumption monitoring unit 42 detects the amount consumed by the carbon dioxide consumption unit 44 and provides the amount to the user terminal 30. When the user terminal 30 obtains the carbon dioxide consumption from the consumption monitoring unit 42, as shown in FIG. Figure 4 In this way, a consumption signal including information on the consumption amount is sent to the management system 10 .

[0111] like Figure 4 In this way, when a consumption signal (a signal for notifying the user of the carbon dioxide consumption) is transmitted from the user terminal 30 corresponding to the user account to the management system 10, the token issuing unit 10A ( Figure 2 ) issues tokens based on the consumption signal. The carbon dioxide consumption per token has been predetermined, and the token issuing unit 10A converts the consumption determined by the consumption signal sent by the user terminal 30 into tokens based on this information. The carbon dioxide consumption per token is, for example, 1t. In this example, when the carbon dioxide consumption determined by the consumption signal is 10t, the token issuing unit 10A issues 10 tokens. When issuing tokens, the token issuing unit 10A issues tokens in a manner that specifies a validity period. The validity period can be, for example, a period from the date of issuance until a specified number of days have passed (for example, until 8 years have passed), or a period until a predetermined year, month, and day arrives.

[0112] The token issuing unit 10A also functions as an invalidation unit. When the validity period specified for the token has passed, the token issuing unit 10A performs processing to invalidate the token. When invalidating a token, the token issuing unit 10A may perform an action to instruct a wallet holding a token whose validity period has expired to delete the token, or may perform invalidation by other methods.

[0113] When the token issuing unit 10A has issued a token, the management system 10 (for example, the token issuing unit 10A) instructs the issued token to be kept in the user wallet 40. When the token issuing unit 10A has issued a token, the management system 10 (for example, the token issuing unit 10A) may instruct that the issued token be directly kept in the user wallet 40. Alternatively, when the token issuing unit 10A has issued a token, the management system 10 may transfer the kept token to the user wallet 40 after temporarily keeping the token in the administrator wallet 20. In either case, the issued token is ultimately kept in the user wallet 40.

[0114] When the token issuing unit 10A provides a token to the user wallet 40 according to a consumption signal sent from the user terminal 30 to the management system 10, the certificate issuing unit 10B of the management system 10 issues a consumption certificate to the user account based on the above-mentioned consumption signal. The consumption certificate contains information for proving that the carbon dioxide consumption determined by the above-mentioned consumption signal has been consumed. The consumption certificate contains the name or title of the user determined by the above-mentioned user account, and the fact that the above-mentioned consumption amount of carbon dioxide has been consumed as information, and may also contain the information of the certifier (for example, the name or title of the administrator). It is expected that the above-mentioned consumption certificate is electronic data containing symbols such as characters and numbers, images, etc. In the case where the consumption certificate is the above-mentioned electronic data, the user terminal 30 that can communicate and trade based on the user account can obtain the above-mentioned consumption certificate. In the case where the above-mentioned consumption certificate is issued (granted) to the user account, the user terminal 30 can keep or use the consumption certificate as electronic data, and can also form the consumption certificate on a medium such as paper by printing, etc.

[0115] In this embodiment, the management system 10 hashes at least one of the historical records of consumption signals and historical records related to transactions of tokens (preferably both) and records them in the above-mentioned blockchain. Therefore, all historical records of consumption signals provided to the management system 10 and all historical records related to transactions of tokens between multiple nodes 2 are hashed and recorded in the blockchain.

[0116] like Figure 4Thus, in the management system 10 , when a sale request for requesting the sale of tokens stored in the user wallet 40 is notified from the user terminal 30 to the management system 10 , the management system 10 transfers the tokens from the user wallet 40 to the administrator wallet 20 based on the sale request.

[0117] Furthermore, when a purchase request for purchasing tokens is notified from the emitter terminal 50 corresponding to the emitter account to the management system 10, the management system 10 transfers the tokens from the manager wallet 20 to the emitter wallet 60 based on the purchase request. In addition, the purchase request provided from the emitter terminal 50 to the management system 10 may be a purchase request that specifies only the amount of tokens or a purchase request that specifies the amount of tokens and the minimum validity period.

[0118] like Figure 4In this way, when tokens are stored in the emitter wallet 60, after the emitter terminal 50 notifies the management system 10 of the issuance request for requesting the issuance of the emission rights certificate, the management system 10 deletes the tokens stored in the emitter wallet 60 based on the issuance request, and the certificate issuing unit 10B issues the emission rights certificate to the emitter account. In this way, the emitter can use the tokens (for example, the purchased tokens) and can accept the emission rights certificate as a certificate of the use of emission rights. In addition, the above-mentioned issuance request can be requested with the amount of tokens stored in the wallet as the upper limit, and can also be requested in the form of using only a part of the amount of tokens stored. For example, when 10 tokens are stored in the emitter wallet 60, the emitter terminal 50 can accept any amount of emission rights certificates by notifying the issuance request within the range of 1 token to 10 tokens. The above-mentioned emission rights certificate is a certificate that proves that the token has been used. Specifically, the tokens of the amount requested by the issuance request among the tokens kept (held) in the emitter wallet 60 are deleted by the management system 10, and the emission right certificate containing information that specifies that the deleted amount of tokens has been used is granted to the emitter account. In the emission right certificate, for example, the fact that the amount of tokens requested by the issuance request has been used is included as information, and the name or title of the emitter determined by the emitter account and the information of the certifier (for example, the name or title of the manager) may also be included. It is desirable that the emission right certificate is electronic data containing characters, symbols such as numbers, images, etc. In the case where the emission right certificate is the electronic data, the emitter terminal 50 that can communicate and trade based on the emitter account can obtain the emission right certificate. In the case where the emission right certificate is issued (granted) to the emitter account, the emitter terminal 50 can keep or use the emission right certificate as electronic data, and can also form the emission right certificate on a medium such as paper by printing or the like. In addition, in this specification, the "prescribed amount of tokens" functions as an emission right for emitting an amount of carbon dioxide equivalent to the prescribed amount of tokens. Furthermore, "using the tokens stored (held) in the emitter wallet 60" also means using the emission rights of the amount equivalent to the used tokens (deleted tokens). Therefore, the emission rights certificate may also include information that specifies the emission rights to be used (for example, information that proves the right (emission rights) to emit carbon dioxide of the amount equivalent to the used tokens (deleted tokens)).

[0119] 3. Effect examples

[0120] The support system 8 can provide incentives to users who contribute to the consumption (reduction) of carbon dioxide by granting tokens to the user's wallet. For example, if tokens can be exchanged for cash, emission rights can be converted into cash by selling tokens.

[0121] The support system 8 can transfer the tokens stored in the user wallet 40 to the administrator wallet 20 in response to a sale request, so that users can more easily use the tokens. In other words, the tokens can be converted into cash at any time.

[0122] When there is a sale request from the user terminal 30 and a purchase request from the emitter terminal 50, the auxiliary system 8 can transfer the tokens of the user wallet 40 to the administrator wallet 20 and then transfer them to the emitter wallet 60. Even if the time of the sale request and the purchase request are staggered, the auxiliary system can easily transfer the tokens of the user wallet to the emitter wallet. In other words, the tokens can be cashed at any time without being affected by the matching of the sale request and the purchase request.

[0123] The auxiliary system 8 can prove, through the emission right certificate, that the entity (emitter) operating the emitter terminal 50 has obtained the emission right from the user using the token.

[0124] The support system 8 can issue a consumption certificate to the user account based on the consumption signal, and thus the consumption certificate can be used as a certification material proving that the entity (user) corresponding to the user account has contributed to the consumption of carbon dioxide.

[0125] The support system 8 can issue tokens in an amount that matches actual consumption conditions in a manner that reflects the highly accurate consumption amount obtained based on the monitoring results of the consumption amount monitoring unit 42 .

[0126] The auxiliary system 8 can use the tokens for a specified period of time when issuing tokens based on the consumption signal.

[0127] The auxiliary system 8 can use blockchain to manage at least one of the historical records of consumption signals and the historical records related to token transactions, thereby preventing the tampering of the historical records and operating the system more stably.

[0128] <Other Implementation Methods>

[0129] The present disclosure is not limited to the embodiments described in the above description and the accompanying drawings. The features of the above or later embodiments can be combined in any way within the scope of non-contradiction. In addition, any features of the above or later embodiments can be omitted as long as they are not explicitly stated as essential features. Furthermore, the features of the above embodiments can also be changed as follows.

[0130] In the first embodiment, it is also possible to Figure 4 Such a transaction is set Figure 5 Like that. Figure 5In the example of , when a purchase request for requesting to purchase a token is notified from the emitter terminal 50 to the management system 10, and a sale request for requesting to sell a token held by the user wallet 40 is notified from the user terminal 30 to the management system 10, the management system 10 executes an event to transfer the token from the user wallet 40 to the emitter wallet 60 based on these purchase request and sale request. The above event is an instruction to directly transfer the token from the user wallet 40 to the emitter wallet 60, and the user terminal 30 that receives the event performs processing to directly transfer the token from the user wallet 40 to the emitter wallet 60. In this example, when there is a sale request from the user terminal 30 and a purchase request from the emitter terminal 50, the auxiliary system 8 can transfer the token from the user wallet 40 to the emitter wallet 60 by matching the sale request with the purchase request, thereby omitting the temporary storage area in the manager wallet 20. Therefore, the auxiliary system 8 can further suppress the burden on the manager wallet 20.

[0131] In the above-mentioned embodiment, the auxiliary system 8 is composed of the management system 10 and the manager wallet 20, but either or both of the user terminal 30 and the emitter terminal 50 may be included in the auxiliary system 8. Alternatively, either or both of the user wallet 40 and the emitter wallet 60 may be included in the auxiliary system 8.

[0132] The embodiments disclosed herein are to be considered in all respects as illustrative rather than restrictive. The scope of the present invention is not limited to the embodiments disclosed herein, but is intended to include all modifications within the scope indicated by the claims or within the scope equivalent to the claims.

[0133] Description of Reference Numerals

[0134] 8: Carbon dioxide emission rights trading auxiliary system; 10: Management system; 10A: Token issuance unit; 10B: Certificate issuance unit; 20: Administrator wallet; 30: User terminal; 40: User wallet; 42: Consumption monitoring unit; 44: Carbon dioxide consumption unit; 50: Emitter terminal; 60: Emitter wallet; 100: Blockchain.

Claims

1. A carbon dioxide emission rights trading auxiliary system, comprising: A management system having a token issuing unit for issuing tokens; and The administrator wallet corresponds to the management system. in, When a user account corresponds to a user wallet and a consumption signal for notifying the consumption of carbon dioxide is sent from a user terminal corresponding to the user account to the management system, the token issuing unit issues the token based on the consumption signal, and the management system instructs the issued token to be kept in the user wallet.

2. The carbon dioxide emission rights trading auxiliary system according to claim 1, wherein: When a sale request for requesting to sell the token stored in the user wallet is notified to the management system from the user terminal, the management system transfers the token from the user wallet to the administrator wallet based on the sale request.

3. The carbon dioxide emission rights trading auxiliary system according to claim 1 or 2, wherein: When an emitter account corresponds to an emitter wallet and a purchase request for purchasing the token is notified to the management system from an emitter terminal corresponding to the emitter account, the management system transfers the token from the manager wallet to the emitter wallet based on the purchase request.

4. The carbon dioxide emission rights trading auxiliary system according to any one of claims 1 to 3, wherein: When an emitter account corresponds to an emitter wallet, and a purchase request for purchasing the token is notified to the management system from the emitter terminal corresponding to the emitter account, and a sale request for selling the token held by the user wallet is notified to the management system from the user terminal, the management system transfers the token from the user wallet to the emitter wallet based on the purchase request and the sale request.

5. The carbon dioxide emission rights trading auxiliary system according to claim 3 or 4, wherein: The management system comprises a certificate issuing unit. In the case where the token is stored in the emitter wallet, after an issuance request for requesting the issuance of a certificate for emission rights is notified from the emitter terminal to the management system, the management system deletes the token stored in the emitter wallet based on the issuance request, and the certificate issuing unit issues the certificate for emission rights to the emitter account.

6. The carbon dioxide emission rights trading auxiliary system according to any one of claims 1 to 5, wherein: The management system comprises a certificate issuing unit. The certificate issuing unit issues a consumption certificate to the user account based on the consumption signal.

7. The carbon dioxide emission rights trading auxiliary system according to any one of claims 1 to 6, wherein: The user terminal generates the consumption signal based on a monitoring result of a consumption monitoring unit for monitoring the carbon dioxide consumption of the user, and transmits the consumption signal.

8. The carbon dioxide emission rights trading auxiliary system according to any one of claims 1 to 7, wherein: The token issuing unit issues the token in a manner that specifies a validity period, The token issuing unit includes a revocation unit configured to invalidate the token when the validity period specified for the token has elapsed.

9. The carbon dioxide emission rights trading auxiliary system according to any one of claims 1 to 8, wherein: The management system hashes at least one of the historical records of the consumption signal and the historical records related to the transaction of the token and records them on the blockchain.

10. A method for assisting carbon dioxide emission rights trading, using a management system and a manager wallet corresponding to the management system, wherein the management system has a token issuing unit for issuing tokens, When a user account corresponds to a user wallet and a consumption signal for notifying the consumption of carbon dioxide is sent from a user terminal corresponding to the user account to the management system, the token issuing unit issues the token based on the consumption signal, and the management system instructs the issued token to be kept in the user wallet.

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