Thinning material management system, thinning material management method and thinning material management program

Abstract

To efficiently use thinning materials, reduce a transport cost and environmental loads, promote use of thinning materials in each district, make these activities visible as a concrete numeric value, for indicating performances of environmental activities of companies to the society.SOLUTION: There is provided a thinning material management system for connecting a district management system and a mediation server by a communication network. The thinning material management system has: an achievement data management part for recording a quantity of thinning materials which are produced, used or disposed of in each district, and generating achievement data; a token issuing part for associating a thinning material use token corresponding to the quantity of the produced thinning materials with production district information related to a production district of the thinning materials, on the basis of the achievement data, for issuing the token; a token conversion part for converting a state of the thinning material use token corresponding to the quantity using the thinning materials, into an already used state in which the token is associated with evaluation information of a contribution degree to the environment, on the basis of the achievement data; and storage means for storing at least a part of data relating to issuance of the thinning material use token and a status, on the communication network.SELECTED DRAWING: Figure 3

Description

[Technical field]

[0001] The present invention relates to the use of thinned wood and visualization of its environmental contribution. In particular, the present invention relates to a thinned wood management system, a thinned wood management method, and a thinned wood management program that tokenize thinned wood produced in each region and enable companies that use the tokens to visualize their own environmental activities. [Background technology]

[0002] In recent years, there has been a trend among companies to use thinned wood as part of their environmental activities, such as producing furniture and building materials using thinned wood, using it as an energy source, and sustainable forest management. These efforts are publicized by publishing them on the company's website and in sustainability reports.

[0003] However, in Japan, utilizing thinned wood is not necessarily easy, due to the labor and cost of thinning work, the difficulty of transporting and storing thinned wood, and technical issues in processing and utilizing it. One approach to overcome these problems is, for example, the technology disclosed in Patent Document 1, which proposes the effective utilization of thinned wood by processing thinned wood, forming a synthetic resin coating layer on it, and using the resulting material in public works. Specifically, Patent Document 1 shows a method in which felled thinned wood is collected, processed into a predetermined shape and length, and then extruded and coated with a synthetic resin material to create a material with a synthetic resin coating layer on the outer periphery, which is then used as a material for structures in public works. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] JP 2002-292607 A Summary of the Invention [Problem to be solved by the invention]

[0005] However, in the technology described in the above-mentioned Patent Document 1, only a limited number of companies have the equipment to collect and process thinned wood and cover it with synthetic resin, and the thinned wood needs to be transported to the company, which causes excessive transportation costs and increases production costs. In detail, the technology described in the above-mentioned Patent Document 1 requires specialized techniques and machinery equipment to introduce thinned wood into an extrusion molding machine and extrude and cover it with synthetic resin material, so thinned wood harvested in each region needs to be transported to the region where the company is located, and trucks and other transportation means are required to transport large amounts of thinned wood, which significantly increases transportation costs. In particular, in Japan, which has a mountainous topography, it is difficult to transport thinned wood from mountainous areas, and there are problems in that long-distance transportation increases the environmental load.

[0006] In view of the problems with the conventional technology, the object of the present invention is to provide a system, method, and generation program that can efficiently utilize thinned timber while reducing transportation costs and environmental impact, promote the use of thinned timber in each region, and visualize these efforts in concrete numerical values, thereby enabling the results of a company's environmental activities to be widely demonstrated to society. [Means for solving the problem]

[0007] In order to solve the above problems, the present invention provides a thinning wood management system that connects a regional management system that manages the production, use, and disposal of thinning wood in each region with an intermediary server that mediates the use of thinning wood via a communication network, In the regional management system, a performance data generating unit generates performance data by recording the quantity of thinned timber produced, utilized, or disposed of in each region; a token issuing unit that issues thinning timber utilization tokens according to the quantity of thinning timber produced based on the performance data in the intermediary server, by linking the tokens to production area information regarding the production area of ​​the thinning timber; a token conversion unit that converts thinning timber usage tokens corresponding to the amount of thinning timber used based on the performance data in the intermediary server into used tokens associated with evaluation information on the degree of contribution to the environment; a storage means for storing at least a portion of data related to the issuance and conversion of the thinning timber utilization tokens on the communication network; The present invention is characterized by comprising:

[0008] The present invention also provides a method for managing thinned timber using a thinned timber management system in which a regional management system that manages the production, use, and disposal of thinned timber in each region using an information processing device and an intermediary server that mediates the use of thinned timber are connected via a communication network, comprising: In the regional management system, a performance data generating step in which a performance data generating unit generates performance data by recording the quantity of thinned timber produced, utilized, or disposed of in each region; a token issuing step in which a token issuing unit in the intermediary server issues a thinning timber utilization token according to the quantity of thinning timber produced based on the performance data, by linking the token to production area information regarding the production area of ​​the thinning timber; a token conversion step in which a token conversion unit in the intermediary server converts thinning timber usage tokens corresponding to the amount of thinning timber used based on the performance data into a used token associated with evaluation information on the degree of contribution to the environment; a storage step in which a storage means stores at least a part of data related to the issuance and conversion of the thinning timber utilization tokens on the communication network; The present invention is characterized by comprising:

[0009] In the above invention, the performance data generating unit includes information on whether the thinned wood is a coniferous tree or a broadleaf tree in the performance data, The token conversion unit has a function of switching the evaluation criteria for the degree of contribution to the environment depending on the type of the thinned timber. It is preferable.

[0010] In the above invention, it is preferable that the system further comprises a circulation status disclosure unit that presents the circulation status of the thinning timber utilization tokens through the communication network.

[0011] In the above invention, a matching processing unit is further provided that receives matching requests from the producers, processors, and consumers of the thinning timber, and generates contract data that sets a transfer of ownership of the thinning timber utilization tokens based on the matching requests, The storage means records at least a part of the data regarding the transfer of ownership of the thinning timber utilization token set in the agreement data. It is preferable.

[0012] The above-mentioned system and method according to the present invention can be realized by executing the program of the present invention written in a specific language on a computer. That is, the program of the present invention can be installed in an IC chip or memory device of a general-purpose computer such as a portable terminal device, a smartphone, a wearable terminal, a mobile PC or other information processing terminal, a personal computer or a server computer, and executed on a CPU to construct a system having the above-mentioned functions and implement the method according to the present invention.

[0013] The program of the present invention can be distributed, for example, through a communication line, and can be transferred as a package application that runs on a stand-alone computer by recording it on a computer-readable recording medium. Specifically, the recording medium can be a magnetic recording medium such as a flexible disk or cassette tape, an optical disk such as a CD-ROM or DVD-ROM, or a RAM card. The computer-readable recording medium on which the program is recorded makes it possible to easily implement the above-mentioned system and method using a general-purpose computer or a dedicated computer, and also makes it easy to store, transport, and install the program. Effect of the Invention

[0014] According to the present invention, as a solution to the problem, a method is provided for digitally tokenizing thinned timber for each region. Each company can consume thinned timber from the region closest to them and contribute to the environment of any region. In this system, companies can contribute to the environment by purchasing tokens through the consumption of thinned timber, and the degree of contribution can be made public and visualized as the number of tokens.

[0015] As a result, this invention provides a new means for companies to publicize their environmental activities by visualizing the use of thinned timber and its contribution to the environment. Companies can use thinned timber from the nearest region while contributing to the environment of any region and publicize the contribution, making it possible to widely publicize their environmental contribution activities. Furthermore, this system helps to reduce the transportation costs of thinned timber, and contributes to maintaining a balance in forest management between regions.

[0016] This invention realizes a new method of expressing thinned timber as a digital token. In this system, the production, use, and disposal of thinned timber is managed for each region, and each region records the amount of thinned timber it has produced, used, or disposed of, and generates performance data based on this information. The performance data is managed by an intermediary server that mediates the use of thinned timber, and this intermediary server issues thinned timber utilization tokens, which are digital tokens, according to the amount of thinned timber produced. These thinned timber utilization tokens are linked to information about where the thinned timber was produced (production area information).

[0017] Furthermore, depending on the amount of thinned wood used, the tokens are converted into a used state, and these tokens are linked to evaluation information on the extent to which they have contributed to the environment (environmental contribution level), and are managed by data related to the issuance and conversion of thinned wood usage tokens. For example, each company uses thinned wood from the area closest to the company, purchases thinned wood usage tokens, and contributes to the environment through their consumption. The contribution level is published as the number of tokens, and as a result, the use of thinned wood and the environmental contribution level are visualized.

[0018] Furthermore, according to the present invention, for example, a company can visualize its use of thinned timber and its contribution to the environment and publish the results, thereby effectively publicizing its own environmental activities, maintaining a balance in regional forest management, and reducing the transportation costs of thinned timber. It also becomes possible for a company to express and share, in numerical form, not only the amount of thinned timber that it directly used, but also its overall contribution to the environment.

[0019] In addition, this system, which manages the production, use, and disposal of thinned timber on a regional basis, can help reduce transportation costs for thinned timber and maintain a balance in forest management between regions. It also allows companies to concretely demonstrate how their activities are affecting local forest management and how they are contributing to the efficient use of thinned timber.

[0020] Furthermore, the thinning timber token provides an incentive for local environmental conservation activities, and thinning timber producing areas can issue tokens according to the amount of thinning timber produced in the area, so that local forest management activities are evaluated and encouraged. In this way, the present invention can provide a new means for promoting environmental conservation activities and publicizing the results of those activities, supporting local forest management, optimizing the use of thinning timber, and visualizing and further promoting corporate environmental contribution activities. [Brief description of the drawings]

[0021] [Figure 1] 1 is a conceptual diagram showing the overall configuration of a thinning wood management system according to an embodiment. [Diagram 2] 1 is a block diagram showing an internal configuration of an information processing device according to an embodiment. [Diagram 3] 2 is a block diagram showing the internal configuration of a thinning material intermediation server according to an embodiment. FIG. [Figure 4] 1 is a block diagram showing an internal configuration of a guarantee system according to an embodiment. [Diagram 5] FIG. 1 is an explanatory diagram showing an overview of a thinning wood management service according to an embodiment. [Figure 6]FIG. 1 is a sequence diagram showing the procedure for trading thinning timber (when selling thinning timber) using a token according to an embodiment. [Figure 7] FIG. 1 is a sequence diagram showing the procedure for trading thinning timber (when thinning timber is used) through a token according to an embodiment. [Figure 8] FIG. 11 is a flow diagram showing a procedure of a token transfer process according to the embodiment. [Figure 9] FIG. 2 is an explanatory diagram illustrating a relationship between a public key and a private key in the energy trading system according to the embodiment. [Figure 10] FIG. 1 is an explanatory diagram showing an overview of thinning timber trading via tokens according to an embodiment. [Figure 11] FIG. 1 is an explanatory diagram of a blockchain in an energy trading system according to an embodiment. [Figure 12] FIG. 1 is an explanatory diagram of a blockchain in an energy trading system according to an embodiment. [Figure 13] FIG. 1 is an explanatory diagram of a blockchain in an energy trading system according to an embodiment. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0022] An embodiment of a thinning wood management system, method, and program according to the present invention will be described in detail below with reference to the accompanying drawings. In this embodiment, a thinning wood management method according to the present invention is used in a thinning wood management service provided by a thinning wood management system. Note that the embodiment shown below is an example of an apparatus for embodying the technical idea of ​​the present invention, and the technical idea of ​​the present invention does not specify the material, shape, structure, arrangement, etc. of each component part as described below. The technical idea of ​​the present invention may be modified in various ways within the scope of the claims.

[0023] (Overall structure of the thinning wood management system) In this embodiment, the distribution of thinned timber generated in various regions is managed by a thinned timber management service provided by the thinned timber management system. Figure 1 shows the overall configuration of the thinned timber management system according to this embodiment.

[0024] In this embodiment, a service for managing thinning timber utilization transactions using a thinning timber utilization token T1, and in particular a service for matching supply and demand in each business related to thinning timber, is provided through a thinning timber management system 1 constructed on a communication network 3. Specifically, as shown in Fig. 1, in this service, thinning timber utilization transactions are conducted by accessing a thinning timber intermediary server 2 through information processing terminals 40a-d provided in each region and facility (forest regions F1, F2, processing plant L1, user company C1, etc.). When conducting a thinning timber utilization transaction, a thinning timber utilization token, which is value information of the thinning timber, is issued, and a transaction contract is exchanged between the provider and user of the thinning timber via this thinning timber utilization token, thereby establishing the thinning timber utilization transaction.

[0025] This thinning timber utilization token is first issued to the owner of forest F1 or F2, who is the producer of the thinned timber, depending on the production area, quantity, and whether the thinned timber is coniferous or broadleaf. Then, a company C1 wishing to use the thinned timber purchases a thinning timber utilization token T1 equivalent to the thinned timber it wishes to use through the thinning timber intermediary server 2. The purchased thinning timber utilization token T1 is linked to the producer (including the region, forest, and processor) who wishes to use it, and information about the producer (region, forest, tree species, quantity, purchase time, environmental contribution, etc.) can be obtained from the related information linked to the thinning timber utilization token T1.

[0026] In addition, thinning timber utilization tokens are purchased by companies etc. as the right to use (consume) thinning timber. The purchasing companies etc. can use thinning timber equivalent to the thinning timber utilization token, and by actually processing the thinning timber into novelty products etc. and consuming those products etc., the thinning timber is considered to have been used.

[0027] The value of the thinning timber utilization token is determined by a calculation process of the environmental contribution in the thinning timber intermediary server 2. For example, the value is calculated according to the contribution to the environment, such as the amount of thinning timber processed and reused and the amount of CO2 reduction. In addition, when the thinning timber utilization token is harvested (produced), the origin information such as the amount of thinning timber, tree species, production area (region, forest), harvesting time, etc. is linked to the thinning timber utilization token, and further, as additional information, related token information such as sold token T2 derived from the thinning timber utilization token, and transaction history including transfer history due to buying and selling of these tokens are associated and stored. Each accumulated token can be used and traded as an independent virtual currency.

[0028] The sold token T2 is issued to the seller of the thinning timber token T1, such as the producer of thinning timber, when the thinning timber token T1 is sold, in an amount (equivalent value) equal to the sold thinning timber token T1, and has exchange value as a virtual currency. In other words, the ownership of the sold token T2 can be transferred with payment or remittance, and a transfer history is recorded that records the date and time the transfer was performed, the transfer source (owner ID) and transfer destination (new owner ID), the price (amount of value) at the time of the transfer, and other transactions.

[0029] The transfer history of the sold token T2 records the value of the sold token T2, the issuer (producer, place of origin (region, forest), felling time), and the transfer destination by transfer transaction is added as a transaction history each time a transfer is made. In addition, the transfer history also records a transportation record of which transporter transported the thinned wood from which region to which region, the distance, time, transportation method, and cost (cost) by which the thinned wood from which the thinned wood utilization token was issued was transported. Furthermore, the transfer history also records how the thinned wood from which the thinned wood utilization token was issued was processed by which processor in which region, how much cost and environmental contribution was incurred at that time, and how the processed product was transported and consumed.

[0030] The transfer history of the sold token T2 is recorded in an unalterable manner in the blockchain, which is a guarantee system, via the thinning timber intermediary server 2. Meanwhile, the above-mentioned information processing terminals 4 (40a-d) are, for example, composed of information processing terminals equipped with a CPU, and are connectable to the communication network 3 via a communication function. In this way, the status of the transfer, location, condition, environmental contribution, etc. of the thinning timber at each stage is collected from each information processing terminal 4 by the thinning timber intermediary server 2 and recorded as status information for each thinning timber. This status information is linked to the thinning timber utilization token and the sold token derived therefrom, and based on the thinning timber utilization token or the sold token, the status information of the thinning timber linked to these tokens can be viewed via the blockchain.

[0031] The thinning timber intermediary server 2 is a content server device that mediates the use of thinning timber by producers and users of thinning timber via information processing terminals 4 (40a-d). This thinning timber intermediary server 2 provides an online intermediary website through which it provides intermediary services for the use of various thinning timber to producers, users, other municipalities, forests, sawmills, processors, etc., and also provides a service of reporting the degree of environmental contribution through the use of each thinning timber by publishing information linked to a token.

[0032] By accessing this thinning timber intermediary server 2 from the information processing terminals 40a-d, users can use the trading service of various tokens according to the origin, species, and quantity of thinning timber produced in each forest or thinning timber they wish to use. In this token trading service, producers, transporters, processors, and users are matched, and the transfer of tokens is managed. In detail, the information processing terminals 40a-d cooperate with the thinning timber intermediary server 2 to generate performance data based on the production volume, transportation charges, processing volume, and production volume of processed products of thinning timber in each local government and forest, and issue and transfer various tokens (including sold processing, status information rewriting, used processing, etc.) that describe information about the thinning timber. The information described in the various tokens and the history of issuance, transfer, and cancellation of the tokens are stored in a non-falsifiable state in the distributed ledger system through the blockchain interface service provided by the guarantee system 6.

[0033] In addition, the tokens that can be traded on the thinning timber intermediary server 2 can be exchanged for each other at an equivalent price based on a price determined by the supply and demand balance of usage transactions on the thinning timber intermediary server 2, and various tokens can be converted into real currency, virtual currency, points, and other value information with exchange value through settlement.

[0034] The communication network 3 is an IP network using the communication protocol TCP / IP, and is a distributed communication network constructed by interconnecting various communication lines (public lines such as telephone lines, ISDN lines, ADSL lines, and optical lines, dedicated lines, third-generation (3G) communication methods such as WCDMA (registered trademark) and CDMA2000, fourth-generation (4G) communication methods such as LTE, and fifth-generation (5G) and later communication methods, as well as wireless communication networks such as Wifi (registered trademark) and Bluetooth (registered trademark). This IP network also includes LANs such as intranets (corporate networks) and home networks using 10BASE-T, 100BASE-TX, etc.

[0035] (Configuration of each device) Next, the configuration of each device will be explained. Note that the term "module" used in the explanation refers to a functional unit that is configured with hardware such as a device or equipment, or software having the corresponding functions, or a combination of these, and that performs a specific operation.

[0036] (1) Information processing device 4 (40a to 40d) The information processing devices 4 (40a-d), as shown in Fig. 1, are information processing terminal devices owned by each thinned timber producer, processor, or user, and are equipped with communications capabilities and a CPU, and various functions can be implemented by installing an OS or firmware or various application software, and in this embodiment, the device functions as a thinned timber utilization management device by installing and running an application. The information processing device 4 can be realized by a personal computer, for example, a smartphone, or a dedicated device with specialized functions, and includes tablet PCs, mobile computers, and mobile phones.

[0037] Specifically, as shown in Fig. 2, the information processing terminal 4 includes a CPU 42, a memory 43, an input interface 44, a storage device 41, an output interface 45, and a communication interface 46. In this embodiment, these devices are connected via a CPU bus 40, and are capable of transferring data between them. Functions of the information processing terminal 4 related to thinning timber utilization transactions include, for example, generating a thinning timber utilization request or performance data including the thinning timber production area, quantity, and tree species.

[0038] The memory 43 and storage device 41 are devices that store data on a recording medium and read out the stored data in response to a request from each device, and can be composed of, for example, a hard disk drive (HDD), a solid state drive (SSD), a memory card, etc.

[0039] The input interface 44 is a device for inputting user operations and data, such as a mouse, keyboard, microphone, etc. The input operation signals and data are transmitted to the CPU 42 and processed by the OS and each application. On the other hand, the output interface 45 is a module to which output devices such as a display for outputting video and audio, and a speaker are connected.

[0040] The communication interface 46 is a module for transmitting and receiving data with other communication devices, and communication methods include, for example, telephone lines, third-generation (3G) communication methods, fourth-generation (4G) communication methods such as LTE, and fifth-generation (5G) and later communication methods, as well as wireless communication networks such as Wifi (registered trademark) and Bluetooth (registered trademark).

[0041] The CPU 42 is a device that performs various arithmetic processing required for controlling each unit, and executes various programs to virtually construct various modules on the CPU 11. An OS (Operating System) is started and executed on the CPU 42, and the basic functions of each information processing terminal 4 are managed and controlled by this OS. In addition, various applications can be executed on this OS, and various functional modules are virtually constructed on the CPU by executing the OS program on the CPU 42.

[0042] In this embodiment, by executing browser software on the CPU 42, information on the system is viewed and information is input through this browser software. More specifically, this browser software is a module for viewing Web pages, and downloads HTML (HyperText Markup Language) files, image files, music files, etc. from the thinning timber intermediary server 2 through the communication network 3, analyzes the layout, and displays and plays them. This browser software also allows users to use forms to send data to a Web server and to run application software written in JavaScript (registered trademark), Flash, Java (registered trademark), etc., and each user can use the token transaction intermediary service provided by the thinning timber intermediary server 2 through this browser software.

[0043] In this embodiment, browser software is executed on the CPU 42, and the thinning timber utilization service provided by the thinning timber intermediary server 2 can be accessed through the browser software, and a thinning timber utilization transaction providing unit is configured on the CPU 42. This thinning timber utilization transaction providing unit is a module that purchases thinning timber utilization tokens, transfers, and executes other procedures. In addition, the browser software can access the blockchain to view information related to the tokens involved in transactions (transaction data, environmental contribution information, etc.), which allows users to view, for example, the degree of contribution to the environment made by utilized thinning timber.

[0044] (2) Thinning wood intermediary server 2 The thinning timber intermediary server 2 is a server device managed and operated by a provider of thinning timber management services, and provides a thinning timber utilization trading service as well as a service of publishing the transaction history of thinning timber utilization tokens.

[0045] Regarding thinning timber utilization management, producers, users, and processors who wish to trade thinning timber can access this thinning timber intermediary server 2 via the communication network 3 and conclude a transaction through a matching service for thinning timber utilization transactions. Specifically, as shown in Fig. 3, the thinning timber intermediary server 2 comprises a user management unit 22, a communication interface 23, a token management unit 24, a thinning timber transaction execution unit 25, a performance data management unit 26, and a thinning timber utilization management unit 27. The thinning timber intermediary server 2 also has a group of databases, which include a token management database 21a, a user database 21b, a performance management database 21c, a transaction management database 21d, a material database 21e, a product database 21f, and a processor database 21g.

[0046] The communication interface 23 is a module that sends and receives data with other communication devices via the communication network 3, and in this embodiment, is connected to each information processing terminal 4 and a guarantee system 6 that uses blockchain in order to provide this service.

[0047] The user management unit 22 is a module that manages users, and includes an authentication unit 22a and a member registration unit 22b. The authentication unit 22a is a computer or software having the function of verifying the legitimacy of an accessing person involved in thinning timber management or thinning timber utilization trading, and performs authentication processing based on a user ID that identifies the user. In this embodiment, the user ID and password are obtained from the accessing person's terminal device via the communication network 3, and by checking against the user database 21b, it is confirmed whether the accessing person has the right to access and whether the accessing person is the person himself / herself. As a prerequisite for the authentication processing by this authentication unit 22a, the user must register as a member via the member registration unit 22b, and authentication information such as the user ID and password is stored in the user database 21b by this member registration.

[0048] The thinning timber transaction execution unit 25 is a module that mediates transactions of thinning timber use through the communication network 3, and in this embodiment includes a matching processing unit 25a and a guarantee system linking unit 25b.

[0049] The matching processing unit 25a generates contract data D1 for a transaction established based on a thinning timber transaction request and a thinning timber utilization request. In detail, based on the thinning timber transaction request, which describes conditions such as quantity, cost, time, and region from the thinning timber producer, transporter, and processor, the utilization plan creation unit 27a presents a utilization plan, compares the producer who wishes to sell the thinning timber and other participating companies (transporters, processors, product suppliers, etc.) with the person who wishes to use the thinning timber, and establishes a transaction by matching the corresponding combination, completes the thinning timber processing contract procedure that describes the demand conditions and supply conditions of the established transaction, such as the supplier, processing method, transportation means, supply possible time, and price, and reflects the completed contract results in the status information of the sold token.

[0050] The guarantee system cooperation unit 25b is a module that requests the guarantee system 6 on the network, which is a blockchain, to carry out the processes necessary for thinning timber utilization transactions and management, such as storing records related to thinning timber utilization transactions and management, and cooperates with the guarantee system 6 to proceed with the processes. The thinning timber transaction execution unit 25 cooperates with the guarantee system 6 through this guarantee system cooperation unit 25b to manage the exchange of various tokens, add public addresses related to token acquirers, and transfer each ownership by changing the owners of the various rights certified by each token.

[0051] The guarantee system 6 includes a plurality of nodes that encrypt and store at least a portion of the producer information, user information, and environmental value information associated with various tokens, as well as information regarding the status of their ownership. These nodes aggregate at least a portion of the information regarding various tokens at a predetermined timing, form blocks, and link these blocks to existing blocks to form a blockchain, which is shared by the plurality of nodes and stored as a distributed ledger.

[0052] The token management unit 24 is a module that executes and manages the generation (issuance), transfer, and cancellation (sold processing) of various tokens, and updates data within various tokens to execute the issuance, transfer, or cancellation of various tokens in cooperation with the guarantee system cooperation unit 25b of the thinning timber trading execution unit 25. Specifically, the token management unit 24 includes a token issuing unit 24a, a status update unit 24b, and a token transfer unit 24c.

[0053] The token issuing unit 24a is a module that issues thinning timber use tokens to users in response to their requests. For example, based on performance data, it issues thinning timber use tokens to producers who cut down trees in forests F1 and F2 in various locations and produce thinned timber, and also generates sold tokens T2 linked to information about used thinned timber by analyzing performance data and deriving them from the thinning timber use tokens for the thinned timber. It also makes the sold tokens T2 viewable as value information according to the economic effect of using thinned timber, thereby realizing visualization.

[0054] In this embodiment, the token issuing unit 24a issues thinned timber utilization tokens T1 and sold tokens T2 based on the tree species, production volume, processing volume, and consumption volume of thinned timber included in the performance data. For example, the token issuing unit 24a determines the value and quantity of various tokens by referring to environmental contribution table data such as CO2 reduction effect based on the production volume of thinned timber included in the performance data, and issues thinned timber utilization tokens T1 and sold tokens T2 of the determined value or quantity. The issued thinned timber utilization tokens T1 and sold tokens T2 are recorded in the blockchain in a non-falsifiable manner.

[0055] The status update unit 24b is a module that executes a process of converting the thinning timber utilization token T1 related to the thinning timber that has been sold after a transaction of the thinning timber has been established into a sold token T2. ​​In more detail, the thinning timber utilization token T1 is issued to the producer of the thinning timber according to the production volume of the thinning timber, and when the matching processing unit 25a establishes a match between the producer and the user and the thinning timber is sold, the ownership of the thinning timber utilization token T1 is transferred from the producer to the user by the token transfer unit 24c. With the transfer of ownership of the thinning timber utilization token T1, the status update unit 24b converts the thinning timber utilization token T1 related to the sold thinning timber into a sold token T2. ​​Here, the sold token process refers to a process of converting a flag indicating the state before and after the sale to "sold" and converting the thinning timber utilization token T1 into a sold token T2 that has an exchange value as a virtual currency. The sold tokens T2, which now have exchange value as virtual currency, can be used to pay processing fees to processors and transportation fees to carriers.

[0056] The token transfer unit 24c is a module that controls the transfer of tokens by rewriting the ownership of each token, and in this embodiment, a blockchain interface service is used for this rewriting. The token transfer is executed based on a transfer request that instructs the transfer. This transfer request is data that is input from the thinning timber trading execution unit 25 when a token is traded in the thinning timber trading execution unit 25 or the like, or is input directly from the information processing terminal 4 by the operation of each user, and includes the type of token to be transferred, account information regarding the transfer source and transfer destination, and the quantity.

[0057] In particular, when the input transfer request is for the transfer of thinning timber utilization tokens T1, the token transfer unit 24c transfers the thinning timber utilization tokens T1 that are the subject of the transfer request to the purchaser, and causes the status update unit 24b to convert the thinning timber utilization tokens T1 that are the subject of the transfer request into sold tokens T2. In addition, when the transfer request is for the transfer of sold tokens T2, the token transfer unit 24c transfers the ownership of the tokens. Information related to these transfers is recorded as transfer history in an unalterable manner in the blockchain, which is a guarantee system, via the thinning timber intermediary server 2.

[0058] The token management database 21a is a storage device that accumulates information on each token that has been issued, converted, or transferred, and accumulates information on the owner of each token, its type, and its value or quantity in association with each token. In addition, related information such as transaction history for each token is also recorded in association with each token. For example, the transfer history issued when transferring the sold token T2 is also recorded in association with the thinning wood token T1 from which the token was converted.

[0059] The user database 21b is a storage device that accumulates information on users such as producers (forest owners, etc.), processors, transporters, and user companies. The performance management database 21c is a storage device that collects, accumulates, and manages performance data from producers (forest owners, etc.), processors, transporters, user companies, and other parties involved in the production, transfer, and use of thinned timber. Each performance data received from each smart meter is accumulated in this performance management database and used for token issuance, transfer, conversion, and value evaluation. The transaction management database 21d is a storage device that records token transaction records.

[0060] At least a part of the data stored in each of these databases 21a to d is recorded in the guarantee system 6 through the guarantee system cooperation unit 25b. The guarantee system 6 aggregates and blocks at least a part of the data stored in each of the databases 21a to d at a predetermined timing in the nodes, forms a blockchain using the blocks, and shares this blockchain among multiple nodes and stores it as a distributed ledger.

[0061] The performance data management unit 26 is a module that calculates the owner, status, type, and quantity of various tokens by collecting and analyzing performance data from each information processing device 4 (40a to d), and the analysis results by this performance data management unit 26 are input to the token management unit 24 and used for issuing and converting tokens. Specifically, the performance data management unit 26 includes a data control unit 26a and a distribution status management unit 26b.

[0062] The data control unit 26a is a module that collects performance data collected from each business (producers, transporters, processors, product suppliers, etc.) and the user's terminal 4, and stores it in the performance management database 21c. The data stored in the performance management database 21c is so-called big data, and the performance data management unit 26 has a function of using this big data to execute AI learning and organize the data using AI. In addition, the distribution status management unit 26b is a module that analyzes the performance data collected from each business, and analyzes which business (industry, region, etc.) each thinned timber belongs to and what state it is in (transportation status, processing status, consumption status, etc.).

[0063] The thinning timber utilization management unit 27 is a module that manages the status of each thinning timber (ownership type, location, sales status, tree species, etc.), and in this embodiment, is equipped with a utilization plan creation unit 27a, a value assessment unit 27b, a tree species information management unit 27c, and a group of databases 21e-21g that accumulate information regarding the distribution of thinning timber.

[0064] The utilization plan creation unit 27a is a module that creates a utilization plan, such as which producer will produce the thinned timber that will be produced and sold, which company will process the thinned timber that has been sold, and which transport company will be used to transport the timber from where to where. Specifically, the utilization plan is created by predicting the type and cost of processing depending on the production area and tree species of the thinned timber to be sold, the addresses of the production area and consumption area, the addresses of the processors depending on the processing, and transportation costs based on fuel costs at that time. The matching process is performed by the matching process unit 25a of the thinned timber transaction execution unit 25 with reference to this utilization plan.

[0065] The value evaluation unit 27b plays a role as an environmental value information generation unit that generates environmental value information, which is an evaluation of the degree of contribution to the environment regarding a consumption unit, based on the performance data, and analyzes the state and quantity of each thinned timber included in the performance data as electricity storage data. The token management unit 24 issues, converts (updates the status), or transfers thinned timber utilization tokens or sold tokens based on the analysis results by the value evaluation unit 27b. In addition, the token issuing unit 24a manages the price and distribution status of the thinned timber utilization tokens T1 and sold tokens T2 based on the analysis results of the performance data by the distribution status management unit 26b and the value evaluation unit 27b.

[0066] Furthermore, the performance data includes the tree species, which is the type of thinned timber, and the value evaluation unit 27b analyzes the performance data to calculate the contribution to the environment according to the tree species and evaluates the value of the token. The token issuing unit 24a sets the value of the sold token T2 based on the analysis result of the performance data by the value evaluation unit 27b.

[0067] The tree species information management unit 27c is a module that manages information on the type of thinned wood. More specifically, it is connected to the thinned wood database 21e, product database 21f, and processor database 21g, which store information on the physical and chemical properties, growth rate, and environmental contribution effect of coniferous and broad-leaved trees, and selects the optimal utilization method according to the type of thinned wood based on the various databases, and evaluates the environmental contribution effect according to the type of thinned wood. In addition, the tree species information management unit 27c cooperates with the utilization plan creation unit 27a to select and provide information necessary to create a utilization plan according to the type of thinned wood. For example, it mainly recommends the utilization of coniferous trees as building materials and fuel, and recommends broad-leaved trees as suitable for luxury furniture and ecosystem conservation activities. In addition, the tree species information management unit 27c cooperates with the value evaluation unit 27b to perform an environmental contribution evaluation according to the type of thinned wood, such as performing a short-term CO2 absorption evaluation for coniferous trees and evaluating the long-term contribution to the ecosystem for broad-leaved trees. In addition, the tree species information management unit 27c, in cooperation with the token management unit 24, issues or renews various tokens based on an evaluation that focuses on short-term profits when the thinned timber is a coniferous tree, and an evaluation based on long-term environmental contributions when the thinned timber is a broadleaf tree.

[0068] (3) Guarantee System 6 As described above, in this embodiment, a guarantee system 6 is provided between the information processing terminals 4 of the power seller and the power buyer, which manage thinned wood via various tokens, and guarantees thinned wood management and token trading. Specifically, as shown in Fig. 6, the guarantee system 6 includes a communication interface 63, an authentication unit 62, a token trading execution unit 64, a token trading history database 61a, a key information database 61b, and an account database 61c.

[0069] The communications interface 63 is a module that transmits and receives data to and from other communications devices via the communications network 3, and in this embodiment is connected to each thinning timber intermediary server 2 and each information processing terminal 4. The authentication unit 62 is a computer or software with that function that verifies the legitimacy of an accessor, and executes authentication processing based on a user ID that identifies each user. In this embodiment, the authentication unit 62 obtains the user's unique public address, public key, user ID, password, etc. from the accessor's information processing terminal 4 via the communications network 3, and verifies whether the accessor has the right to access the site and whether the accessor is the person in question by checking against the key information database 61b.

[0070] The token transaction execution unit 64 is a module that handles thinning timber utilization tokens that tokenize the right to sell or consume thinning timber as a virtual coin, and sold tokens T2 that are added value derived from the power generation method and power storage method of each thinning timber and are derived from the thinning timber utilization token. Each of these tokens is linked to the public account of its legitimate owner, and it is possible to prove that one is the legitimate right holder of the token by presenting the relationship of the public account. Also, only the legitimate right holder can carry out transfer procedures such as transfer of the token. In this embodiment, the token transaction execution unit 64 includes a guarantee system linking function, a public address management unit 64b, a validity verification unit 64c, and a data update unit 64d.

[0071] The guarantee system linking function is a module that cooperates with other service providers' devices, such as the thinning timber intermediary server 2, to carry out processes related to token transactions, such as credit for thinning timber management, security management, transaction records, and storage of service history, upon request from these devices. In this embodiment, the guarantee system linking function provides information such as the transaction values ​​of various tokens to the thinning timber intermediary server 2.

[0072] The public address management unit 64b functions as an address issuing unit that issues public addresses generated from a public key in a public key cryptosystem to identify a specific user, and private keys that can be paired with the public keys to identify the public key and are used for electronic signatures for thinning material management via the public addresses, and these issued public addresses and their associated key information are stored in a key information database 61b.

[0073] The legitimacy verification unit 64c is a module that verifies that various tokens related to token transactions or thinning timber management belong to the current owner through legitimate transactions and have not been tampered with.It can confirm the legitimacy of the token using the public key of the current owner linked to a public account, and it accumulates all transactions related to the token in the token transaction history database 61a, and can confirm the legitimacy by comparing the token transaction history database 61a based on the public key.

[0074] The data update unit 64d is a module that transfers ownership of tokens by acquiring thinning information related to various tokens, adding the public address of the new token owner, and changing the token owner certified in the distributed ledger. The data update by the data update unit 64d is protected by a high level of security, and double transfers and tampering with transaction history are firmly prevented.

[0075] (Operation of the thinning wood management system) By operating the thinning wood management system described above, it is possible to provide the thinning wood management service according to this embodiment. Fig. 7 is a sequence diagram showing the system operation when issuing a token in the thinning wood management service, and Fig. 8 is a sequence diagram showing the system operation when purchasing electricity and using thinning wood in the thinning wood management service. Note that the processing procedure described below is merely an example, and each process may be changed as much as possible. Also, steps in the processing procedure described below may be omitted, replaced, or added as appropriate depending on the embodiment.

[0076] In this embodiment, the producer precisely records the amount of thinned timber cut (production volume) (S101). Specifically, cutting is carried out in a specified forest, and the species, quantity, and harvesting time of the thinned timber are recorded. This allows the producer (forest owner) to understand the condition of the forest and manage it appropriately. The producer generates performance data from the recorded information and saves it (S102). The production volume is then tallied and reported. This report contains information about the quality and quantity of the product.

[0077] Meanwhile, performance data D1 is generated by inputting specified information into the information terminal 41, and the data control unit 26a in the thinning timber intermediation server 2 collects the performance data through the communication interface 23, and the producer tally up the felling volume and stores it in the performance management database 21c (S201).

[0078] Next, a token issuance request based on the collected felling volume is sent from the producer's terminal to the token management unit 24 of the thinning timber intermediary server 2 (S104). In the token management unit 24 that receives this token issuance request (S202), the distribution status management unit 26b analyzes the felling volume, input volume, output volume, processed volume, and distributed volume for each forest area, processor, and transporter based on the performance data D1, and grasps the utilization status of the thinning timber (S203).

[0079] In addition, value assessment unit 27b collects market information and evaluates the market value of the thinned timber at that time by referring to the transaction records of thinned timber transaction execution unit 25 (S204). Specifically, value assessment unit 27b analyzes the record data and calculates the contribution of each thinned timber to the environment based on factors such as tree species, quality, and quantity, and evaluates the market value of the thinned timber at that time by referring to the market information, transaction records, etc.

[0080] Based on this value evaluation, the token issuing unit 24a issues a thinning timber utilization token (S206). On the producer side, after receiving this thinning timber utilization token issuance process, a token issuance completion process (S105) is executed. When issuing this thinning timber utilization token, specifically, the amount of thinning timber produced, used, or disposed of in each region is calculated based on the thinning timber performance data D1, and a thinning timber utilization token according to the amount of thinning timber produced is issued in association with production area information on the production area of ​​the thinning timber. For this issued token, an account process for token issuance is executed in the guarantee system (S206).

[0081] Thereafter, the producer who has been issued the thinning timber utilization token registers a thinning timber transaction request in the intermediary server to make the produced thinning timber the subject of trading, such as selling it (S106 and S207). The distribution status of the issued thinning timber utilization token is published on the network via the distribution status publishing unit 22c, thereby disclosing the quantity and distribution status of available thinning timber.

[0082] Next, a case where thinned timber is purchased, processed, and used as a novelty product will be described. As shown in Fig. 9, first, a user who wishes to use thinned timber transmits a thinned timber usage request to the thinned timber intermediary server 2 (S401), and the thinned timber intermediary server 2 that receives this thinned timber usage request registers it (S301).

[0083] The thinning timber intermediary server 2, which receives a thinning timber transaction request from the producer and a thinning timber utilization request from the user, performs a matching process to link the producer and the user. This matching process includes the thinning timber intermediary server 2 adjusting the terms of the transaction between the two parties and sharing information between them, and when a transaction is concluded, the thinning timber transaction execution unit 25 transfers the tokens required for the transaction from the owner (the producer in this case) to the purchaser. The token transaction history is stored in the token management database 21a by the token management unit 24, and the ownership of the token is transferred when its validity is confirmed through the guarantee system linkage unit 25b.

[0084] In this matching process, a utilization plan is created that determines which producer's thinned timber to purchase, which company will process the purchased thinned timber, and which transport company will be used to transport the timber from where to where. This plan is created by the utilization plan creation unit 27a. Specifically, the utilization plan is created by predicting the type and cost of processing depending on the production area and tree species of the thinned timber to be sold, the addresses of the production and consumption areas, the addresses of the processors depending on the processing, and transportation costs based on fuel costs at that time. The matching process is performed by referring to this utilization plan.

[0085] At this time, the utilization plan creation unit 27a, in cooperation with the matching processing unit 25a, creates a utilization plan in stages, and sequentially finalizes the solicitation and selection of participating businesses, thereby creating an optimal and feasible utilization plan.

[0086] After matching according to such utilization plans is completed, the contract procedures for each process are completed (S303). For example, a contract is made to determine which producer produced the thinned timber, which will be transported to which processor, which will process it into a certain product, and which consumer destination the timber will be transported to.

[0087] When a sale is established through this matching, the thinning timber transaction execution unit 25 transfers the thinning utilization tokens required for the transaction from the owner (here, the producer) to the purchaser (S402, S304). The token transaction history is stored in the token management database 21a by the token management unit 24, and the ownership of the tokens is transferred when the tokens are verified as being legitimate through the guarantee system cooperation unit 25b. The transfer of the thinning timber utilization tokens is carried out by paying the price for the tokens.

[0088] In addition, when the thinning tokens are transferred from the producer to the user in response to payment from the producer to the user, sold tokens equivalent to the number of transferred thinning tokens are generated and issued by the token issuing unit 24a (S305). The sold tokens are generated in association with the thinning tokens so as to be paired, and have exchange value as a currency similar to virtual currency. The sold tokens are linked to performance data, and the performance data reflects status information such as the current location, processing state, transportation and processing costs, and consumption state of the sold thinning timber. The status of each sold token and the thinning timber linked to it is sequentially reflected in the performance data by the distribution status management unit 26b.

[0089] Then, when the sold thinned timber has been transported, processed, commercialized, and other processes are completed, all of these processes are reported to the thinned timber intermediary server 2 (S403-S405), and the status update unit 24b updates the status information linked to the sold token (S306). This status information is stored in the token management database 21a, and is referred to whenever an inquiry about the token status is made.

[0090] This status update is also reflected in the sold token itself on the blockchain through the guarantee system (S308). In this embodiment, when the token status is changed, the guarantee system executes an account process for the thinning timber. At this time, the updated status of the sold token T2 is recorded in an unalterable manner in the blockchain, which is the guarantee system, through the thinning timber intermediary server 2. Anyone can view this account on the blockchain, and the updated token status is made public (S309).

[0091] (Operation of the warranty system) Here, the mechanism of the distributed ledger system adopted in the above-mentioned guarantee system will be described in detail. In this embodiment, the guarantee system 6 is a management server arranged on the communication network 3, and a blockchain interface service is provided through this guarantee system 6. In this embodiment, this blockchain interface service includes a plurality of nodes that store at least a part or all of the data generated by each information processing device 4 or the thinning timber intermediation server 2, and these nodes aggregate and block the stored data at a predetermined timing, use the blocks to form a blockchain, and the blockchain is shared by the plurality of nodes and stored as a distributed ledger.

[0092] Specifically, as shown in Fig. 10, the thinning timber management system 1 according to this embodiment issues a key pair of a public key PKa and a private key SKa based on a public key cryptosystem through a guarantee system 6 when issuing, transferring, or changing the status of various tokens, and generates a public address PAa from the public key PKa corresponding to the issued token. This public address PAa is used as an address indicating the transferee (user) and transferor (producer, etc.) in the thinning timber trading contract, while the private key SKa is used for the electronic signature of the transaction in which the public address PAa is the transfer source.

[0093] Thinning timber management according to this embodiment is carried out between two nodes on a P2P (Peer-to-Peer) network 30 (here, between a producer or the like and a user), and the transaction information is broadcast to and shared among the nodes 90a to 90f in the P2P network 30. As a result, a transaction history database based on a distributed ledger system (a so-called blockchain) is formed on the P2P network 30, and transaction histories of various tokens and thinning timber status management are stored.

[0094] In this embodiment, the transaction history database based on this distributed ledger system executes, approves, and manages thinning timber management contracts when issuing various tokens or rewriting owners through the thinning timber intermediary server 2. In order to mediate transactions between producers and users, the intermediary for thinning timber management (each information processing terminal 4) generates a public address PAa unique to the thinning timber intermediary server 2, and relays the transfer of tokens by temporarily depositing the tokens that are the subject of the transaction at the thinning timber intermediary server 2's public transaction address.

[0095] The parties to the transaction (producer and user) then use the thinning timber management system 1 to transfer the token from the current producer to the thinning timber intermediary server 2's unique public address PAa, thereby initially receiving the token, and then transferring it to the new user via the communications network 3, thereby establishing a sales contract for the thinning timber intermediary server 2 between the producer and user.

[0096] This allows the transferee user to receive the token at his / her public address PAb, and allows viewing of the service history linked to this public address PA3 and use of the service. The public address may be issued by the thinning timber intermediary server 2, or by software on each transaction user terminal, or by a server of an independent service management institution or financial institution. Here, the detailed mechanism of the electronic cryptocurrency transaction will be specifically explained using Figs. 11 to 13. Figs. 11 to 13 show examples of a part of the token transaction history (blockchain).

[0097] The transaction history of each token's issuance, transfer, status update, and cancellation is defined as a chain of electronic signatures as shown in Figure 11. When the owner of each token transfers its transaction history to the next owner, the owner adds to the token's transaction history the hash value of the previous transaction and the hash value of the public key of the next owner, which are electronically signed with his / her private key. Note that a one-way hash function such as SHA-256 or RIPEMD-160 is used to calculate these hash values.

[0098] In Fig. 11, as a specific example of a transaction, various tokens are transferred from owner Z to owner A, then from owner A to owner B, and then from owner B to owner C. In this case, when transferring a token from owner A to owner B, owner A adds to the token a hash value of the transfer transaction from owner Z to owner A and a hash value of the public key of owner B, the next owner, digitally signed with owner A's private key.

[0099] Subsequent token owners, including owner B, can determine whether the transaction has been tampered with by comparing the value obtained by decrypting this digital signature with owner A's public key with the hash value of the transfer transaction from owner Z to owner A and the hash value of owner B's public key. Similarly, when transferring tokens from owner B to owner C, owner B adds to the token the hash value of the transfer transaction from owner A to owner B and the hash value of the public key of owner C, the next owner, digitally signed with owner B's private key. This makes it possible to determine whether the transfer transaction from owner B to owner C has been tampered with.

[0100] Various tokens can be defined as a chain of such a series of electronic signatures. Here, the hash value of the public key is a public address. In other words, the tokens stored in this public address can only be transferred by those who can perform electronic signatures for thinning management with this public address as the transfer source, that is, those who have a private key corresponding to this public address. Therefore, the private key is generally kept secret so as not to be leaked to anyone other than the owner. Note that the token and data related to it, such as transaction history, are stored in a public address linked to the current owner. In addition, since it is not possible to verify that any of the past owners of the token have used the token multiple times (transferred multiple times) using only this electronic signature, the token transaction mechanism according to this embodiment uses a mechanism called a blockchain, exemplified in FIG. 12 and FIG. 13, to prevent this multiple use.

[0101] As illustrated in FIG. 12 and FIG. 13, each block recorded in a token or the like stores multiple transactions, a nonce, and a hash value of the immediately preceding block. The nonce is a disposable random value used in cryptographic communication, and the node (miner) 60a to 60f that first discovers this value updates the blockchain by adding the block in which the nonce was discovered to the end of the blockchain as an approver. This allows a consistent transaction history to be recorded in the blockchain, and by sharing this blockchain among all the nodes 90a to 90f participating in the P2P network 30, a consistent transaction history can be shared throughout the P2P network 30. That is, this blockchain serves as a part or all of the token transaction history database 61a and the key information database 61b in the guarantee system 6 described above. In this embodiment, in the thinning timber management based on the public key cryptography, various tokens are traded by such a mechanism.

[0102] (Action and effect) According to the present embodiment described above, it is possible to provide a method for digitally tokenizing thinned timber for each region. Specifically, each company can consume thinned timber from the region closest to the company and contribute to the environment of any region. In this system, by purchasing tokens, companies can make environmental contributions through the consumption of thinned timber, and the degree of contribution can be made public and visualized as the number of tokens.

[0103] As a result, this invention provides a new means for companies to publicize their environmental activities by visualizing the use of thinned timber and its contribution to the environment. Companies can contribute to the environment of any region while using thinned timber from the nearest region, and by publishing the degree of contribution, they can widely publicize their environmental contribution activities. Furthermore, this system helps to reduce the transportation costs of thinned timber, and contributes to maintaining a balance in forest management between regions.

[0104] In this embodiment, the status of the token is updated according to the production location, tree species, transportation, and the state of each stage of processing of the thinned timber, and the token can be used to trade the thinned timber and settle the price. This allows added value to be accumulated and allocated as tokens for each transaction in the diversifying use of thinned timber, such as environmental value trading and thinned timber trading. Furthermore, since a blockchain interface service is also implemented, entry from an existing interface can be easily performed. As a result, according to this embodiment, in a situation where the diversified use value of thinned timber is mixed, it is possible to appropriately evaluate the value of thinned timber and freely link the supplier and the demand destination to perform charging and evaluation of environmental contribution.

[0105] In particular, because a distributed database mechanism is adopted as the guarantee system, there is no need for each business operator to set up equipment for managing and operating a single, robust system.When information is exchanged between businesses, the distributed database mechanism standardizes the database for linking information, protects privacy, and ensures advanced security measures against data tampering, thereby reducing equipment and operating costs. [Explanation of symbols]

[0106] C1…Using company F1, F2: Forest area L1…processing place PAa…Public address PAb…Public address PKa...public key SKa...private key T1…Thinning wood token T2…Sold tokens 1. Thinning wood management system 2. Thinning wood intermediary server 3. Communication network 4. Information processing device 6. Warranty system 11...CPU 21a…Token Management Database 21b...User database 21c…Results management database 21d…Trade management database 21e…Materials database 21f…Product database 21g...Processor database 22...User Management Department 22a…Authentication section 22b…Member Registration Section 22c…Circulation Status Disclosure Section 23...Communication interface 24…Token Management Department 24a…Token issuing department 24b…Status update section 24c…Token Transfer Department 25…Thinnings Trading Department 25a...Matching processing section 25b… Guarantee System Cooperation Department 26…Performance Data Management Department 26a...Data control section 26b…Distribution Status Management Department 27…Thinning Wood Utilization and Management Department 27a…Usage Planning Department 27b… Valuation Section 27c…Tree species information management department 30…Network 40…CPU bus 40a-d: Information processing terminal 41...Information terminal 42…CPU 43…Memory 44…Input interface 45…Output interface 46…Communication interface 61a…Token transaction history database 61b...Key information database 61c…Account database 62…Authentication section 63...Communication interface 64…Token Trading Execution Department 64b…Public Address Management Section 64c…Validity Verification Department 64d…Data update section 90a~90f…node

Claims

1. A thinning wood management system that connects a regional management system that manages the production or use of thinning wood in each region and an intermediary server that mediates the use of thinning wood through a communication network, a performance data management unit that accumulates and manages performance data that records the quantity of thinned timber used, including either production or utilization, in each region in the regional management system and the increase or decrease in the quantity; a token issuing unit that issues thinning timber usage tokens according to the quantity of thinning timber produced based on the performance data in the intermediary server, and issues sold tokens to the seller according to the quantity of thinning timber usage tokens transferred to the user in accordance with the sale of the thinning timber used; a status update unit that manages status information common to both the thinning timber usage tokens and the sold tokens related to the sold thinning timber in association with each other, and updates the status information according to the use of each thinning timber, whether it is transportation, processing, or consumption; a storage means for storing at least a part of data related to the issuance of the thinning timber utilization tokens and the sold tokens and the update of status information on the thinning timber utilization tokens and the sold tokens on the communication network; A thinning wood management system comprising:

2. A value assessment unit is further provided for assessing the environmental contribution of the thinned timber based on the performance data or the status information. The performance data management unit includes information on whether the thinned wood is a coniferous tree or a broadleaf tree in the performance data, The value assessment unit has a function of switching the assessment criteria for the contribution to the environment depending on the type of the thinned timber.

2. The thinning wood management system according to claim 1 .

3. The thinning timber management system described in claim 1, further comprising a distribution status disclosure unit that presents the distribution status of the thinning timber related to the status information through the communication network through the status information associated with the thinning timber utilization token or the sold token.

4. A matching processing unit that receives matching requests from producers, processors, and consumers of the thinned timber, and generates contract data that sets the transfer of ownership of the thinned timber utilization tokens based on the matching requests, The storage means records at least a part of the data regarding the transfer of ownership of the thinning timber utilization token set in the agreement data.

2. The thinning wood management system according to claim 1 .

5. A method for managing thinned wood using a thinned wood management system in which a regional management system for managing the production or use of thinned wood in each region and an intermediary server for mediating the use of thinned wood are connected via a communication network, In the regional management system, a performance data management unit accumulates and manages performance data that records the quantity of thinned timber used in each region, including either production or utilization, and the increase or decrease in the quantity; A token issuing step in which a token issuing unit in the intermediary server issues thinning timber utilization tokens according to the quantity of thinning timber produced based on the performance data, and issues sold tokens to a seller according to the quantity of thinning timber utilization tokens transferred to the user in accordance with the sale of the thinning timber involved in the use; a status update step in which a status update unit in the intermediary server associates and manages status information common to both the thinning timber usage tokens and the sold tokens related to the sold thinning timber, and updates the status information according to the transportation, processing, or consumption of each thinning timber; A storage step in which a storage means stores at least a part of data related to the issuance of the thinning timber utilization tokens and the sold tokens and the update of status information on the thinning timber utilization tokens and the sold tokens on the communication network. A method for managing thinning materials, comprising:

6. The method further includes a value assessment step of assessing the contribution of the thinned timber to the environment based on the performance data or the status information, In the performance data management step, the performance data management unit includes information on whether the thinned wood is a coniferous tree or a broadleaf tree in the performance data, In the value assessment step, the value assessment unit switches the assessment criteria for the degree of contribution to the environment depending on the type of the thinned timber.

6. A method for managing thinned wood according to claim 5.

7. The thinning timber management method according to claim 5, further comprising a circulation status disclosure step in which a circulation status disclosure unit presents, via the communication network, the circulation status of the thinning timber related to the status information through the status information associated with the thinning timber utilization token or the sold token.

8. The method further includes a matching process step in which the matching processing unit in the intermediary server receives matching requests from the producers, processors, and consumers of the thinning timber, and generates contract data that sets a transfer of ownership of the thinning timber utilization tokens based on the matching requests; In the storage step, the storage means records at least a part of the data regarding the transfer of ownership of the thinning timber utilization token set in the agreement data.

6. A method for managing thinned wood according to claim 5.

9. A thinning wood management system in which a regional management system for managing the production or use of thinning wood in each region and an intermediary server for intermediating the use of thinning wood are connected by a communication network, the program for managing thinning wood comprises: a performance data management unit that accumulates and manages performance data that records the quantity of thinned timber used, including either production or utilization, in each region in the regional management system and the increase or decrease in the quantity; a token issuing unit that issues thinning timber usage tokens according to the quantity of thinning timber produced based on the performance data in the intermediary server, and issues sold tokens to the seller according to the quantity of thinning timber usage tokens transferred to the user in accordance with the sale of the thinning timber used; a status update unit that manages status information common to both the thinning timber usage tokens and the sold tokens related to the sold thinning timber in association with each other, and updates the status information according to the use of each thinning timber, whether it is transportation, processing, or consumption; A storage means for storing at least a part of data related to the issuance of the thinned timber utilization tokens and the sold tokens and the update of the status information on the thinned timber utilization tokens and the sold tokens on the communication network. A thinning management program characterized by functioning as follows.

10. The information processing device and further functioning as a value assessment unit that assesses the contribution of the thinned timber to the environment based on the performance data or the status information. The performance data management unit includes information on whether the thinned wood is a coniferous tree or a broadleaf tree in the performance data, The value assessment unit has a function of switching the assessment criteria for the contribution to the environment depending on the type of the thinned timber.

10. The thinning wood management program according to claim 9.

11. The information processing device, The thinning timber management program described in claim 9, characterized in that it functions as a distribution status disclosure unit that presents the distribution status of thinning timber related to the status information through the communication network through the status information associated with the thinning timber utilization token or the sold token.

12. The information processing device, and further functioning as a matching processing unit that receives matching requests from producers, processors, and consumers of the thinned timber, and generates contract data that sets the transfer of ownership of the thinned timber utilization tokens based on the matching requests; The storage means records at least a part of the data regarding the transfer of ownership of the thinning timber utilization token set in the agreement data.

10. The thinning wood management program according to claim 9.

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