Trading methods, trading systems, server equipment, and programs of a trading system.

Abstract

To facilitate the smooth implementation of greenhouse gas emission trading. [Solution] In a trading method for a trading system comprising a server device, a first terminal device, and a plurality of second terminal devices that can communicate with each other via a network, the control unit of the server device acquires an image including the target area for auction of greenhouse gas emission rights selected by the seller user at the first terminal device, publishes the image including the target area on the network, accepts bids for emission rights from the plurality of second terminal devices, acquires a plurality of bid information including the valuation amount of emission rights transmitted from the plurality of second terminal devices, determines the buyer user operating the second terminal device that transmitted the bid information containing the highest valuation amount among the received plurality of bid information as the successful bidder, and generates contract information for concluding a sales contract for emission rights between the seller user and the successful bidder.

Description

Technical Field

[0001] The present disclosure relates to a trading method, a trading system, a server device, and a program.

Background Art

[0002] A carbon credit refers to a mechanism in which the amount of reduction and absorption of greenhouse gas generated by forestation and introduction of energy-saving equipment is issued as an emission right and can be traded. The emission right of greenhouse gas itself may also be referred to as a carbon credit. With the increasing importance of environmental protection, the demand for trading of greenhouse gas emission rights based on the amount of emission and absorption of greenhouse gases such as carbon dioxide (CO2) in farms and forests is increasing.

[0003] Patent Documents 1 and 2 describe techniques for evaluating the amount of carbon dioxide absorption in a target area based on satellite photos taken from above an area including forests.

Prior Art Documents

Patent Documents

[0004]

Patent Document 1

Patent Document 2

Summary of the Invention

Problems to be Solved by the Invention

[0005] However, the evaluation of the amount of reduction and absorption of greenhouse gas in farms and forests according to the conventional configuration requires specialized knowledge. It is generally not easy for non-experts to identify the amount of reduction and absorption of greenhouse gas from the situation of farms and forests and evaluate the emission rights. The difficulty in evaluating the emission rights of greenhouse gas can hinder the smooth implementation of emission right trading.

[0006] The purpose of this disclosure is to facilitate the smoother implementation of greenhouse gas emission trading. [Means for solving the problem]

[0007] The trading method of the trading system according to one embodiment of this disclosure is: (1) A trading method for a trading system comprising a server device, a first terminal device, and a plurality of second terminal devices that can communicate with each other via a network, The control unit of the server device, The first terminal device acquires an image that includes the area subject to auction for greenhouse gas emission rights, selected by the seller user. The process of publishing an image including the target area on the network and receiving bids from the multiple second terminal devices for the emission rights in the target area, A step of acquiring multiple pieces of bidding information, including the assessed value of the emission allowances in the target area, transmitted from the multiple second terminal devices, The process involves determining the successful bidder as the buyer user who operates the second terminal device that transmitted the bid information containing the highest valuation among the multiple bid information received, A step of generating contract information for concluding a sales contract regarding the emission allowances in the target area between the seller user and the successful bidder, Includes. With this configuration, seller users can participate in greenhouse gas emission trading simply by providing images that include the target area, even if they do not possess the expertise to assess greenhouse gas emission allowances in that area themselves.

[0008] (2) As one embodiment of the present disclosure, in (1), The control unit, By analyzing the image containing the aforementioned target area, the target area that occupies the aforementioned target area in the image is identified. The aforementioned target area may be indicated, and an image including the target area may be published on the network. With this configuration, seller users can participate in emissions trading by simply indicating the target area in an image.

[0009] (3) As one embodiment of the present disclosure, in (2), The control unit, The first terminal device may identify the target area in the image based on the seller user's selection operation in the image including the target area. With this configuration, seller users can accurately identify target regions with simple operations and participate in emissions trading.

[0010] (4) In one embodiment of the present disclosure, in any of (1) to (3), The control unit may, based on the contract information, execute a transfer operation to the seller user for the amount obtained by deducting an amount equivalent to the commission fee from the amount received from the successful bidder, in response to confirmation that payment in accordance with the valuation amount has been received from the successful bidder. With this configuration, the operators of the trading system can reliably collect fees related to greenhouse gas emission trading.

[0011] (5) In one embodiment of the present disclosure, in any of (1) to (4), The control unit, The first terminal device obtains at least one of the following, set by the seller user: the sales period for the emission allowance, the initial price of the emission allowance, and the acceptance period for accepting bids for the emission allowance. The network may further disclose at least one of the aforementioned sales period, the aforementioned initial price, and the aforementioned acceptance period to accept bids for the emission rights from the plurality of second terminal devices. With this configuration, buyer users can easily screen auction cases that meet their preferences based on factors such as the sale period, initial price, and application period.

[0012] (6) As one embodiment of the present disclosure, in any of (1) to (5), the control unit further acquires at least any one of the types of plants growing in the target area and the location and altitude of the target area, and may further disclose at least any one of the types of plants and the location and altitude of the target area on the network to accept bids on the emission rights from the plurality of second terminal devices. According to such a configuration, the buyer user can measure the amount of carbon dioxide absorption in the target area with higher accuracy and more appropriately evaluate the value of the emission rights.

[0013] A trading system according to an embodiment of the present disclosure (7) is a trading system including a server device, a first terminal device, and a plurality of second terminal devices that can communicate with each other via a network, the first terminal device transmits an image including the target area for the auction of emission rights of greenhouse gases selected by the seller user to the server device, the server device receives the image including the target area selected by the seller user in the first terminal device, publishes the image including the target area on the network to accept bids on the emission rights in the target area from the plurality of second terminal devices, acquires a plurality of bid information including the evaluation amounts of the emission rights in the target area transmitted from the plurality of second terminal devices, determines the buyer user who operates the second terminal device that transmitted the bid information including the highest evaluation amount among the received plurality of bid information as the winning user, and generates contract information for concluding a sales contract regarding the emission rights in the target area between the seller user and the winning user. including. According to such a configuration, even if the seller user does not have the expertise to evaluate the greenhouse gas emission rights in the target area, the seller user can participate in the greenhouse gas emission rights trading by simply providing an image including the target area.

[0014] A server device according to an embodiment of the present disclosure is (8) A server device capable of communicating with a first terminal device and a plurality of second terminal devices via a network, acquire an image including an auction target area related to greenhouse gas emission rights selected by a seller user in the first terminal device, publish the image including the target area on the network, receive bids on the emission rights in the target area from the plurality of second terminal devices, acquire a plurality of bid information including the evaluation amounts of the emission rights in the target area transmitted from the plurality of second terminal devices, determine, as a winning user, a buyer user who operates the second terminal device that transmitted the bid information including the highest evaluation amount among the received plurality of bid information, generate contract information for concluding a sales contract regarding the emission rights in the target area between the seller user and the winning user, and includes a control unit. According to such a configuration, even if the seller user does not have the expertise to evaluate the greenhouse gas emission rights in the target area, the seller user can participate in the greenhouse gas emission rights trading by simply providing an image including the target area.

[0015] A program according to an embodiment of the present disclosure is (9) causing a computer to operate as the server device of (8). According to such a configuration, even if the seller user does not have the expertise to evaluate the greenhouse gas emission rights in the target area, the seller user can participate in the greenhouse gas emission rights trading by simply providing an image including the target area.

Advantages of the Invention

[0016] According to one embodiment of this disclosure, greenhouse gas emission trading can be implemented more smoothly. [Brief explanation of the drawing]

[0017] [Figure 1] This figure shows an example configuration of a trading system according to one embodiment. [Figure 2] This block diagram shows an example of the server device configuration shown in Figure 1. [Figure 3] This is a block diagram showing an example configuration of the first terminal device in Figure 1. [Figure 4] This is a block diagram showing an example configuration of the second terminal device in Figure 1. [Figure 5] Figure 1 is a sequence chart showing an example of the trading system's operation. [Figure 6A] This figure shows an example of the screen displayed on the second terminal device in Figure 1. [Figure 6B] This figure shows an example of the screen displayed on the second terminal device in Figure 1. [Figure 6C] This figure shows an example of the screen displayed on the second terminal device in Figure 1. [Figure 7] Figure 1 is a sequence chart showing an example of the trading system's operation. [Modes for carrying out the invention]

[0018] Hereinafter, an embodiment of the present disclosure will be described with reference to the drawings. In each drawing, parts having the same configuration or function are denoted by the same reference numerals. In the description of this embodiment, redundant descriptions of the same parts may be omitted or simplified as appropriate.

[0019] (Trading System 1) Figure 1 shows an example configuration of a trading system 1 according to one embodiment. The trading system 1 provides an auction system for bidding on greenhouse gas emission rights.

[0020] The trading system 1 comprises a server device 10, a first terminal device 20, and a plurality of second terminal devices 30. The server device 10, the first terminal device 20, and the second terminal devices 30 are connected to each other so as to be able to communicate with one another via a network N. Network N is any communication network capable of sending and receiving signals between devices, and may include, for example, the internet, an intranet, a mobile network, or any combination thereof. In Figure 1, there is one server device 10 and one first terminal device 20, and there are two or more second terminal devices 30, but these numbers are arbitrary.

[0021] Server device 10 is a computer operated by a service provider for auctioning greenhouse gas emission rights. Server device 10 may be, for example, a PC (Personal Computer) or a WS (Workstation), but it may also be implemented as a cloud.

[0022] The first terminal device 20 is a computer operated by a seller user of greenhouse gas emission rights (hereinafter referred to as "seller user"). The first terminal device 20 accepts the seller user's input to select an image containing the area of ​​the farm or forest (hereinafter referred to as "target area") that is the subject of the auction, and transmits the selected image to the server device 10. The image containing the target area is, for example, an aerial photograph or satellite photograph. As will be described later, the first terminal device 20 may also accept selection operations from the seller user to identify the area occupied by the target area in the image (hereinafter referred to as "target area"). The first terminal device 20 is, for example, a PC, a tablet terminal, or a smartphone, but may be implemented by any other electronic device.

[0023] The second terminal device 30 is a computer operated by a user who is a buyer of greenhouse gas emission rights (hereinafter referred to as "buyer user"). The second terminal device 30 receives information such as images, including the target area being auctioned, from the server device 10, and accepts the setting of bid amounts by buyer users. The second terminal device 30 is, for example, a PC, a tablet terminal, or a smartphone, but may be implemented by any other electronic device.

[0024] In this configuration, the first terminal device 20 transmits an image containing the auction area, selected by the seller user, to the server device 10. The server device 10 publishes the image containing the auction area on the network N and accepts bids from buyer users operating the second terminal device 30. The buyer user refers to the information on the auction item published by the server device 10, calculates an estimated value based on the amount of greenhouse gas absorption and the sale period of emission rights in the auction item, and submits a bid. The server device 10 determines the buyer user who submitted the highest estimated value bid among the bid information received from the second terminal device 30. The server device 10 then facilitates the conclusion of a sales contract for the auction area between the first terminal device 20 and the second terminal device 30.

[0025] Thus, in trading system 1, seller users can sell emission allowances for a target region by selecting an image that includes the target region, without having to calculate the amount of greenhouse gas absorption in that region themselves. Therefore, even seller users without specialized knowledge can easily engage in greenhouse gas emission allowance trading.

[0026] (Server device 10) Figure 2 is a block diagram showing an example configuration of the server device 10 shown in Figure 1. As shown in Figure 2, the server device 10 comprises a control unit 11, a storage unit 12, and a communication unit 13.

[0027] The control unit 11 includes one or more processors. In one embodiment, the "processor" is a general-purpose processor or a dedicated processor specialized for a specific process, but is not limited to these. The control unit 11 is communicatively connected to each component constituting the server device 10 and controls the operation of the entire server device 10.

[0028] The storage unit 12 includes, for example, any storage module such as an HDD (Hard Disk Drive), SSD (Solid State Drive), ROM (Read-Only Memory), and RAM (Random Access Memory). The storage unit 12 may function as, for example, main memory, auxiliary memory, or cache memory. The storage unit 12 stores any information used in the operation of the server device 10. For example, the storage unit 12 may store system programs, application programs, and various information received by the communication unit 13. The storage unit 12 may also store information related to emission rights, such as images including the auction area, received from the first terminal device 20, and bidding information including the appraised value received from the second terminal device 30. The storage unit 12 is not limited to one built into the server device 10, but may be an external database or an external storage module.

[0029] The communication unit 13 includes an optional communication module that can communicate with other devices such as the first terminal device 20 and the second terminal device 30 using any communication technology. The communication unit 13 may further include a communication control module for controlling communication with other devices, and a storage module for storing communication data such as identification information necessary for communication with other devices.

[0030] The functions of the server device 10 can be realized by executing a computer program (program) according to this embodiment on the processor included in the control unit 11. In other words, the functions of the server device 10 can be realized by software. The computer program causes the computer to execute the processing of steps included in the operation of the server device 10, thereby realizing the functions corresponding to the processing of each step. In other words, the computer program is a program that causes the computer to function as the server device 10 according to this embodiment. The computer program may be recorded on a recording medium that can be read by a computer. The program includes information used for processing by an electronic computer that is equivalent to a program. For example, data that is not a direct instruction to the computer but has the nature of defining the processing of the computer falls under the category of "information equivalent to a program".

[0031] Some or all of the functions of the server device 10 may be implemented by dedicated circuits included in the control unit 11. In other words, some or all of the functions of the server device 10 may be implemented by hardware. Furthermore, the server device 10 may be implemented by a single computer or by the cooperation of multiple computers.

[0032] (First terminal device 20) Figure 3 is a block diagram showing an example configuration of the first terminal device 20 in Figure 1. As shown in Figure 3, the first terminal device 20 includes a control unit 21, a storage unit 22, a communication unit 23, an input unit 24, and an output unit 25.

[0033] The functions and configuration of the control unit 21, storage unit 22, and communication unit 23 of the first terminal device 20 are the same as those of the control unit 11, storage unit 12, and communication unit 13 of the server device 10, so a detailed explanation is omitted.

[0034] The input unit 24 includes one or more input interfaces that receive input operations from the operator (seller user) and acquire input information based on the operator's operations. For example, the input unit 24 may be, but is not limited to, a physical key, a capacitive key, a pointing device, a touchscreen integrated with the display of the output unit 25, or a microphone that accepts voice input.

[0035] The output unit 25 includes one or more output interfaces that output information to the operator and notify the operator. For example, the output unit 25 is a display that outputs information as an image, or a speaker that outputs information as sound, but is not limited to these. Such a display may be, for example, a liquid crystal panel display or an organic EL (Electro Luminescence) display. At least one of the above-mentioned input unit 24 and output unit 25 may be configured integrally with the first terminal device 20, or may be provided as a separate unit.

[0036] The functions of the first terminal device 20, like those of the server device 10, can be implemented by software. Some or all of the functions of the first terminal device 20 may be implemented by hardware. Furthermore, the first terminal device 20 may be implemented by a single computer or by the cooperation of multiple computers.

[0037] (Second terminal device 30) Figure 4 is a block diagram showing an example configuration of the second terminal device 30 in Figure 1. As shown in Figure 4, the second terminal device 30 includes a control unit 31, a storage unit 32, a communication unit 33, an input unit 34, and an output unit 35.

[0038] The functions and configurations of the control unit 31, storage unit 32, and communication unit 33 of the second terminal device 30 are the same as those of the control unit 11, storage unit 12, and communication unit 13 of the server device 10, so a detailed explanation is omitted. The functions and configurations of the input unit 34 and output unit 35 of the second terminal device 30 are the same as those of the input unit 24 and output unit 25 of the first terminal device 20, so a detailed explanation is omitted.

[0039] The functions of the second terminal device 30 can also be implemented by software, similar to the server device 10. Some or all of the functions of the second terminal device 30 may be implemented by hardware. Furthermore, the second terminal device 30 may be implemented by a single computer or by the cooperation of multiple computers.

[0040] (Example of operation of trading system 1) Figures 5 and 7 are sequence charts showing an example of the operation of trading system 1 in Figure 1. The operation of trading system 1 described with reference to Figures 5 and 7 may correspond to one of the trading methods of trading system 1. Figures 5 and 7 show an example of operation when trading system 1 is equipped with two second terminal devices 30a and 30b, and the buyer user of second terminal device 30a wins the bid, but the number of second terminal devices 30 is arbitrary.

[0041] The operations in steps S1, S2, S5-S7 in Figure 5, and S27, S28, and S34 in Figure 7 may be performed based on the control of the control unit 21 of the first terminal device 20. The operations in steps S3, S4, S8, S10, S13, S15, S18 in Figure 5, and S21-S24, S29, S32, and S33 in Figure 7 may be performed based on the control of the control unit 11 of the server device 10. The operations in steps S9, S11, S12 in Figure 5, and S25, S26, S30, and S31 in Figure 7 may be performed based on the control of the control unit 21 of the second terminal device 30a. The operations in steps S14, S16, and S17 in Figure 5 may be performed based on the control of the control unit 21 of the second terminal device 30b.

[0042] In step S1 of Figure 5, the control unit 21 of the first terminal device 20 receives from the seller user the selection of an image, such as an aerial photograph or satellite photograph, that includes the area subject to the auction for greenhouse gas emission rights. The image including the area may be provided in association with other information such as the location information of the area and the time of capture. The location information of the area may include, for example, the address of the area, coordinate information measured based on GNSS (Global Navigation Satellite System) such as GPS (Global Positioning System), and information on the latitude and longitude of the area. The control unit 21 may also acquire at least one of the following in association with the image including the area: the types of plants growing in the area, and the location and elevation of the area. In addition to this information, the control unit 21 may also acquire information on the amount of greenhouse gas absorption in the area, such as the tree species, height, diameter at breast height, age, area, and density of trees growing in the area, in association with the image including the area.

[0043] In step S2, the control unit 21 of the first terminal device 20 transmits an image including the target area selected in step S1 to the server device 10 via the communication unit 23. The control unit 21 may also transmit information such as location information of the target area to the server device 10 in association with the image including the target area. The control unit 11 of the server device 10 stores the image received from the first terminal device 20, and the information received in association with the image, in the storage unit 12.

[0044] In step S3, the control unit 11 of the server device 10 analyzes the image transmitted from the first terminal device 20 in step S2 and recognizes the boundaries of the area included in the image. Specifically, the control unit 11 may identify roads, buildings, rivers, etc., based on information such as brightness, color, and color difference of the image including the target area, and recognize the boundaries based on their presence.

[0045] In step S4, the control unit 11 of the server device 10 transmits the image with the boundary recognized in step S3 to the first terminal device 20 via the communication unit 13.

[0046] In step S5, the control unit 21 of the first terminal device 20 receives from the seller user the selection of the area corresponding to the target region in the image selected in step S1. Specifically, based on the bounded image received from the server device 10 in step S4, the control unit 21 indicates the boundary on the image and displays it on the output unit 25.

[0047] Figures 6A, 6B, and 6C show examples of screens displayed on the second terminal device 30 in Figure 1. In Figure 6A, image 80 includes three roads 81a, 81b, and 81c. The roads 81a, 81b, and 81c divide image 80 into four regions 82a, 82b, 82c, and 82d. In the example in Figure 6A, region 82c includes the target region 83, which is the area occupied by the auction for emission rights.

[0048] The control unit 11 of the server device 10 may identify roads 81a, 81b, and 81c based on information such as brightness, color, and color difference of the image 80, and recognize regions 82a, 82b, 82c, and 82d. The control unit 11 may also identify the target region 83 from region 82d based on the color difference of region 82d.

[0049] Furthermore, the first terminal device 20 may display the image 80 on the output unit 25 to receive a selection operation for the target area 83 from the seller user. The control unit 11 of the server device 10 may identify the target area 83 in the image 80 based on the seller user's selection operation in the image 80. The selection operation for the target area 83 may be performed, for example, by the seller user enclosing the target area 83 in the image 80 with a shape such as a rectangle or a circle.

[0050] Figure 6B shows an example where a seller user selects a target area 83 in image 80 by enclosing the area including the target region with a rectangle 84. Note that the operation of selecting the target area 83 is not limited to enclosing the area corresponding to the target region with a shape. For example, the seller user may select the target area 83 by enclosing it with their finger or a stylus, touching near the center of the target area 83, or by inputting the coordinates of the target area 83.

[0051] The control unit 21 of the first terminal device 20 transmits the seller user's selection operation of the target area 83 to the server device 10 via the communication unit 23. When the control unit 11 of the server device 10 receives the selection operation from the seller user from the first terminal device 20, it may use the information of the received selection operation to narrow down the analysis target in the image 80 and identify the target area 83. For example, as shown in Figure 6B, if the seller user selects a rectangle 84, the control unit 11 may perform analysis only on the inside of the rectangle 84 to identify the target area 83. In this way, the control unit 11 can identify the target area 83 in the image 80 based on the seller user's selection operation of the target area, thereby enabling high-precision and efficient identification of the target area 83.

[0052] Figure 6C shows an example of image 80, which includes an image 85 indicating the target area identified by the server device 10. The first terminal device 20 causes the output unit 25 to display the image 85 indicating the target area as shown in Figure 6C.

[0053] The control unit 21 of the first terminal device 20 may accept requests from the seller user to modify the target area recognized by the server device 10. For example, the control unit 21 may accept requests from the seller user to modify the boundary of the target area by dragging or wiping. This makes it possible for the seller user to identify the desired target area with simple operations.

[0054] In this embodiment, the target area is identified based on processing by the server device 10, but it may also be identified by the first terminal device 20.

[0055] In step S6, the control unit 21 of the first terminal device 20 receives the setting of sales conditions for the target area from the seller user. Such sales conditions may include, but are not limited to, at least one of the following: the sales period for emission allowances, the initial price of emission allowances, and the acceptance period for accepting bids for emission allowances. The control unit 21 may also receive from the user the setting or modification of information obtained in step S1 regarding the amount of greenhouse gas absorption in the target area, such as tree species in the target area.

[0056] In step S7, the control unit 21 of the first terminal device 20 transmits the target area selected in step S5 and the sales conditions and other information set or modified in step S6 to the server device 10 via the communication unit 23.

[0057] In step S8, the control unit 11 of the server device 10 publishes an image including the target area to be auctioned on the network N and accepts bids from the second terminal device 30 for emission rights in the target area. Specifically, the control unit 11 may publish the image received in step S2 and the information associated with that image, as well as the target area and sales conditions received in step S7, on an auction website or the like as the subject of the auction.

[0058] In step S9, the control unit 31 of the second terminal device 30a requests the server device 10 to view the items to be auctioned, for example by accessing an auction website.

[0059] In step S10, the control unit 11 of the server device 10 transmits an image containing the auction item, information associated with the image, and the target area and sales conditions to the second terminal device 30a in response to the viewing request in step S9.

[0060] In step S11, the control unit 31 of the second terminal device 30a receives bids from buyer users operating the second terminal device 30a. Based on information such as images including the target area provided by the server device 10, the buyer user calculates the amount of greenhouse gas absorption in the target area and determines the valuation amount. For example, the buyer user may use the methods described in Patent Documents 1, 2, etc., to calculate the amount of greenhouse gas absorption based on information disclosed by the server device 10, and determine the valuation amount based on the calculated absorption amount and the market price of emission allowances. The buyer user inputs the calculated absorption amount (e.g., the fixed annual amount of greenhouse gases) and the determined valuation amount into the second terminal device 30a and instructs it to submit a bid.

[0061] In step S12, the control unit 31 of the second terminal device 30a generates bid information based on the valuation amount entered by the buyer user in step S11, and transmits the bid information to the server device 10 via the communication unit 33.

[0062] In step S13, the control unit 11 of the server device 10 registers the bid information received from the second terminal device 30a in step S12 into the storage unit 12. For example, the control unit 11 may store the bid information in the storage unit 12 in association with the second terminal device 30a or the identification information of the buyer user operating the second terminal device 30a.

[0063] Server device 10 accepts bids from each second terminal device 30 in the same procedure as in steps S9 to S13 until the bid acceptance period ends. In the example in step 5, second terminal device 30b submits a bid in steps S14 to S18. The processing in steps S14 to S18 is the same as in steps S9 to S13, so a detailed explanation is omitted.

[0064] Once the bidding period ends, in step S21 of Figure 7, the control unit 11 of the server device 10 determines the successful bidder, the buyer user, based on the bid information received from each second terminal device 30. Specifically, the control unit 11 determines the buyer user who submitted the highest bid as the successful bidder. Figure 7 shows an example of the operation when the buyer user of the second terminal device 30a submits the highest bid and wins the bid.

[0065] In step S22, the control unit 11 of the server device 10 notifies each buyer user other than the successful bidder that they have been unsuccessful. Specifically, the control unit 11 may also notify the unsuccessful buyer user of their unsuccessful bid by sending information indicating unsuccessful bid to the second terminal device 30 (second terminal device 30b in the example of Figure 7) operated by the buyer user other than the unsuccessful bidder.

[0066] In step S23, the control unit 11 of the server device 10 generates contract information for concluding a sales contract regarding emission allowances in the target area between the buyer user and the successful bidder. Specifically, the control unit 11 may generate a template contract that includes information on the target area, the sale period for emission allowances, and the sale price.

[0067] In step S24, the control unit 11 of the server device 10 transmits the contract information (for example, a contract template) generated in step S23 to the second terminal device 30a via the communication unit 23. The server device 10 may also transmit information identifying the first terminal device 20 to the second terminal device 30a along with the contract information. The contract information may include, for example, clauses regarding the successful bidder's obligation to apply for carbon credits to a specific certification body, payment obligations, the seller user's obligation to cooperate in the credit application, and obligations regarding the transfer of rights.

[0068] In step S25, the control unit 31 of the second terminal device 30a receives a signature from the successful bidder on the contract information received from the server device 10 in step S24. For example, the control unit 31 may receive an electronic signature on the contract information from the successful bidder. The control unit 31 may further receive requests from the successful bidder for revisions to the contract terms, etc.

[0069] In step S26, the control unit 31 of the second terminal device 30a transmits the contract information, which has been signed in step S25, to the first terminal device 20 via the communication unit 33. Specifically, the control unit 31 may determine the destination of the contract information based on the information identifying the first terminal device 20 received from the server device 10 in step S24. Furthermore, the transmission of the contract information, which has been signed by the successful bidder, to the first terminal device 20 may be performed via the server device 10 rather than directly from the second terminal device 30a to the first terminal device 20.

[0070] In step S27, the control unit 21 of the first terminal device 20 receives the signature from the seller user on the contract information received from the second terminal device 30a in step S26. For example, the control unit 21 may receive the seller user to affix an electronic signature to the contract information. The control unit 21 may further receive from the seller user a request for amendment of the contract terms, etc.

[0071] If the successful bidder or the seller requests a revision to the contract, the contract terms are adjusted between the first terminal device 20 and the second terminal device 30a. If no revision is requested, the process from step S28 onward executes an action for the successful bidder to pay the successful bid amount to the seller.

[0072] In step S28, the control unit 21 of the first terminal device 20 transmits the contract information, signed by the successful bidder and the seller, as well as the seller's bank transfer information, to the server device 10 via the communication unit 23. The control unit 11 of the server device 10 verifies the authenticity of the signatures of the successful bidder and the seller, and then registers the contract information.

[0073] In step S29, the control unit 11 of the server device 10 transmits the copy of the contract information received and registered in step S28, as well as the service provider's bank transfer information, etc., to the second terminal device 30a via the communication unit 13.

[0074] In step S30, the control unit 31 of the second terminal device 30a receives a transfer operation from the successful bidder to the service provider for the bid amount. The control unit 31 processes the transfer operation from the successful bidder to deposit the funds into the service provider's bank account. The control unit 21 may also request the successful bidder to confirm that the successful bidder has applied for carbon credits based on the contract information. For example, the control unit 21 may request the successful bidder to submit a copy of the document claiming carbon credit certification.

[0075] In step S31, the control unit 31 of the second terminal device 30a transmits financial information indicating that a payment has been made to the service provider to the server device 10 via the communication unit 33. Upon receiving the financial information, the control unit 11 of the server device 10 confirms that a payment has been made to the service provider's bank account based on the contract information.

[0076] In step S32, the control unit 11 of the server device 10 processes the amount obtained by deducting the commission fee from the amount transferred by the successful bidder and deposits it into the seller's bank account received in step S28.

[0077] In step S33, the control unit 11 of the server device 10 transmits financial information indicating that payment has been made to the seller user to the first terminal device 20 via the communication unit 13.

[0078] In step S34, the control unit 21 of the first terminal device 20 confirms that a deposit has been made to the seller user's bank account based on the contract information, in response to the receipt of monetary information in step S33. Then, the transaction system 1 terminates the process shown in Figures 5 and 7.

[0079] As described above, in the trading system 1, the server device 10 receives information from the first terminal device 20, including images of the target area, for determining the valuation of the emission allowances in the target area for auction. The server device 10 publishes the images and other information received from the first terminal device 20 on the network N and accepts bids from multiple second terminal devices 30. The second terminal devices 30 calculate the amount of greenhouse gas absorption in the target area from the published information, determine the valuation, and submit bids. The server device 10 determines the buyer user who submitted the bid with the highest valuation as the successful bidder and generates contract information for concluding a sales contract regarding emission allowances in the target area between the seller user and the successful bidder.

[0080] Thus, in trading system 1, seller users can participate in auction trading of greenhouse gas emission allowances simply by registering information such as images of the target area (for example, aerial or satellite photographs of the farm or forest to be evaluated) with the server device 10. Therefore, trading system 1 can match sellers and buyers of greenhouse gas emission allowances and realize the buying and selling of emission allowances at a fair price. Specifically, seller users can participate in emission allowance trading without having specialized knowledge of emission allowance trading or having to perform greenhouse gas absorption assessments or apply for carbon dioxide credits in advance. Due to this convenience, if many seller users participate in trading system 1, a large number of auction cases will accumulate in trading system 1. In such cases, buyer users can screen cases that meet their preferences and participate in bidding. Service providers can earn commission income by mediating transactions.

[0081] Furthermore, the server device 10 may analyze the image containing the target area, identify the area occupied by the target area in the image, indicate the target area, and publish the image containing the target area on the network N. Specifically, the server device 10 may identify the target area based on the seller user's selection operation in the image containing the target area, which is received by the first terminal device 20. Therefore, seller users can easily identify the target area in the image and participate in emissions trading.

[0082] Furthermore, the server device 10 may, based on the contract information, execute a transfer operation to the seller user for the amount obtained by deducting an amount equivalent to the commission from the amount received by the successful bidder, in response to confirmation of payment from the successful bidder in accordance with the valuation amount. With this configuration, the operator of the trading system 1 can reliably collect commissions related to greenhouse gas emission trading.

[0083] Furthermore, the server device 10 may obtain at least one of the following, set by the seller user in the first terminal device 20: the sales period for emission allowances, the initial price of the emission allowances, and the acceptance period for accepting bids for the emission allowances. The server device 10 may further publish this information on the network N and accept bids for emission allowances from the second terminal device 30. With this configuration, buyer users can easily screen auction cases that meet their needs based on the sales period, initial price, acceptance period, etc.

[0084] Furthermore, the server device 10 may acquire at least one of the following: the types of plants growing in the target area, the location and elevation of the target area, and further publish this information on the network N to accept bids for emission rights from the second terminal device 30. With such a configuration, buyer users can measure the amount of carbon dioxide absorbed in the target area with greater accuracy and evaluate the value of emission rights more appropriately.

[0085] This disclosure is not limited to the embodiments described above. For example, multiple blocks shown in the block diagram may be combined, or a single block may be divided. Multiple steps shown in the flowchart may be performed in parallel or in a different order, depending on the processing capacity of the device performing each step, or as necessary, instead of being performed in chronological order as described. Other modifications are possible without departing from the spirit of this disclosure. Contribution to the United Nations-led Sustainable Development Goals (SDGs)

[0086] The SDGs have been proposed to realize a sustainable society. One embodiment of this disclosure is considered to be a technology that can contribute to "No. 13 Take urgent action to combat climate change and its impacts." [Explanation of Symbols]

[0087] 1. Trading System 10 Server devices 11 Control Unit 12 Storage section 13 Communications Department 20. First Terminal Device 21 Control Unit 22 Memory section 23 Communications Department 24 Input section 25 Output section 30, 30a, 30b Second terminal device 31 Control Unit 32 Storage section 33 Communications Department 34 Input section 35 Output section 80 images 81a,81b,81c Road 82a,82b,82c,82d area 83. Area of ​​Interest 84 rectangle 85 images N Network

Claims

1. A trading method for a trading system comprising a server device, a first terminal device, and a plurality of second terminal devices that can communicate with each other via a network, The control unit of the server device, The first terminal device acquires an image that includes the area subject to auction for greenhouse gas emission rights, selected by the seller user. The process of publishing an image including the target area on the network and receiving bids from the multiple second terminal devices for the emission rights in the target area, A step of acquiring multiple bidding information, including the assessed value of the emission allowances in the target area, transmitted from the multiple second terminal devices, The process involves determining the successful bidder as the buyer user who operates the second terminal device that transmitted the bid information containing the highest valuation among the multiple bid information received, A step of generating contract information for concluding a sales contract regarding the emission allowances in the target area between the seller user and the successful bidder, Transaction methods including.

2. The control unit, By analyzing the image containing the aforementioned target area, the target area that occupies the aforementioned target area in the image is identified. The aforementioned target area is indicated, and an image including the aforementioned target area is made public on the network. The transaction method described in claim 1.

3. The control unit, The transaction method according to claim 2, wherein the first terminal device identifies the target area in the image based on the seller user's selection operation in the image including the target area.

4. The transaction method according to claim 1, wherein the control unit, based on the contract information, confirms that a payment corresponding to the valuation amount has been received from the successful bidder, and in response, performs a transfer operation to the seller user for the amount obtained by deducting an amount equivalent to the commission fee from the amount received from the successful bidder.

5. The control unit, The first terminal device acquires at least one of the following, set by the seller user: the sales period for the emission allowance, the initial price of the emission allowance, and the acceptance period for accepting bids for the emission allowance. The sales period, the initial price, and the acceptance period are further made public on the network, and bids for the emission rights from the multiple second terminal devices are accepted. The transaction method described in claim 1.

6. The control unit, Further, obtain at least one of the following: the types of plants growing in the target area, and the location and elevation of the target area. The network further discloses at least one of the plant species and the location and elevation of the target area, and accepts bids for the emission rights from the multiple second terminal devices. The transaction method described in claim 1.

7. A trading system comprising a server device, a first terminal device, and a plurality of second terminal devices that can communicate with each other via a network, The first terminal device transmits to the server device an image that includes the area subject to auction for greenhouse gas emission rights, selected by the seller user. The aforementioned server device The first terminal device receives an image including the target area selected by the seller user, The image including the aforementioned target area is made public on the network, and bids for the emission rights in the aforementioned target area are accepted from the multiple second terminal devices. The system acquires multiple pieces of bidding information, including the assessed value of the emission allowances in the target area, transmitted from the multiple second terminal devices. Among the multiple bids received, the buyer user operating the second terminal device that transmitted the bid information containing the highest valuation is determined to be the successful bidder. The seller user and the successful bidder user generate contract information for concluding a sales contract regarding the emission allowances in the target area. A trading system that includes this.

8. A server device capable of communicating with a first terminal device and a plurality of second terminal devices via a network, The first terminal device acquires an image that includes the area subject to auction for greenhouse gas emission rights, selected by the seller user. The image including the aforementioned target area is made public on the network, and bids for the emission rights in the aforementioned target area are accepted from the multiple second terminal devices. The system acquires multiple pieces of bidding information, including the assessed value of the emission allowances in the target area, transmitted from the multiple second terminal devices. Among the multiple bids received, the buyer user operating the second terminal device that transmitted the bid information containing the highest valuation is determined to be the successful bidder. The seller user and the successful bidder user generate contract information for concluding a sales contract regarding the emission allowances in the target area. A server device equipped with a control unit.

9. A program that causes a computer to operate as the server device described in claim 8.

Images