WO2022163460A1 - データ売買方法、端末、及び、プログラム - Google Patents
データ売買方法、端末、及び、プログラム Download PDFInfo
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- G06—COMPUTING; CALCULATING OR COUNTING
- G06Q—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
- G06Q30/00—Commerce
- G06Q30/02—Marketing; Price estimation or determination; Fundraising
- G06Q30/0201—Market modelling; Market analysis; Collecting market data
- G06Q30/0206—Price or cost determination based on market factors
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- G06—COMPUTING; CALCULATING OR COUNTING
- G06Q—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
- G06Q20/00—Payment architectures, schemes or protocols
- G06Q20/38—Payment protocols; Details thereof
- G06Q20/389—Keeping log of transactions for guaranteeing non-repudiation of a transaction
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- G06Q—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
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- G06Q30/02—Marketing; Price estimation or determination; Fundraising
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- G06Q—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
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- G06Q40/00—Finance; Insurance; Tax strategies; Processing of corporate or income taxes
- G06Q40/04—Trading; Exchange, e.g. stocks, commodities, derivatives or currency exchange
Definitions
- the present disclosure relates to data trading methods, terminals, and programs.
- Patent Document 1 information (data) is collected from each IoT device using distributed file sharing technology for sharing electronic file information such as HTML, PDF, and text, and a distributed file sharing network formed by each IoT gateway.
- Patent Document 1 since the method disclosed in Patent Document 1 does not consider the data trading price in data trading, it is difficult to efficiently determine an appropriate trading price.
- the present disclosure has been made in view of the circumstances described above, and aims to provide a data trading method, terminal, and program capable of efficiently determining an appropriate trading price.
- a data trading method is a data trading method using a management system including a plurality of servers holding distributed ledgers, wherein each of the plurality of servers includes trading performance information.
- the above sales transaction data is stored in the distributed ledger, and each of the one or more sales performance information included in the one or more sales transaction data is a data group that is the target of the sales indicated by the sales performance information.
- each of the one or more data groups included in the one or more of the above-mentioned trading performance information is one or more of a plurality of data generated by a plurality of devices that satisfy the conditions corresponding to the data group
- one terminal of the first terminal owned by the seller of the target data group to be traded and the second terminal owned by the purchaser of the target data group is Acquiring the trading performance of one or more similar data groups similar to the target data group from the one or more trading performance information stored in the distributed ledger, and obtaining the trading performance of the acquired one or more similar data groups Based on this, the trading price of the target data group is determined.
- a terminal is a terminal communicably connected to a management system including a plurality of servers holding distributed ledgers via a network, wherein the plurality of servers each stores one or more trading transaction data including trading performance information in the distributed ledger, and each of the one or more trading performance information included in the one or more trading transaction data is indicated by the trading performance information
- a management system including a plurality of servers holding distributed ledgers via a network
- the plurality of servers each stores one or more trading transaction data including trading performance information in the distributed ledger, and each of the one or more trading performance information included in the one or more trading transaction data is indicated by the trading performance information
- Each of the one or more data groups included in the one or more of the above-mentioned one or more trading result information, including the trading results of the data group that is the target of trading is the data group in question among a plurality of data generated by a plurality of devices.
- the terminals being a first terminal owned by the seller of the target data group to be traded and a first terminal owned by the purchaser of the target data group; an acquisition unit, which is one of the two terminals, for acquiring a trading record of one or more similar data groups similar to the target data group from the one or more trading record information stored in the distributed ledger; a determination unit that determines a trading price of the target data group based on the trading results of the one or more similar data groups.
- FIG. 1 is a diagram showing an example of the configuration of a management system according to an embodiment.
- FIG. 2 is a diagram illustrating an example of a configuration of a seller terminal according to the embodiment;
- FIG. 3 is a table showing the relationship between the number of transactions in a similar data group and the first increase/decrease amount of the transaction price in a predetermined period.
- FIG. 4 is a table showing the relationship between the number of changes in the number of trades per unit time in the similar data group and the second increase/decrease amount of the trade price.
- FIG. 5 is a diagram showing an example of a UI for inquiring of a seller whether it is permissible to trade at the trading price of the target data group.
- FIG. 1 is a diagram showing an example of the configuration of a management system according to an embodiment.
- FIG. 2 is a diagram illustrating an example of a configuration of a seller terminal according to the embodiment;
- FIG. 3 is a table showing the relationship between the number of transactions in a similar data group
- FIG. 6 is a diagram showing an example of a UI for inquiring of a seller whether the target data group may be traded at the desired purchase price.
- FIG. 7 is a diagram showing an example of a UI for price negotiation with a purchaser.
- FIG. 8 is a table showing an example of first trading performance information.
- FIG. 9 is a diagram illustrating an example of a configuration of a purchaser terminal according to the embodiment;
- FIG. 10 is a diagram showing an example of a UI for inquiring of a purchaser whether it is permissible to trade at the trading price of the target data group.
- FIG. 11 is a diagram showing an example of a UI for inquiring of a purchaser whether the target data group may be traded at the desired selling price.
- FIG. 11 is a diagram showing an example of a UI for inquiring of a purchaser whether the target data group may be traded at the desired selling price.
- FIG. 12 is a diagram showing an example of a UI for price negotiation with a seller.
- FIG. 13 is a table showing an example of the second trading performance information.
- 14 is a diagram illustrating an example of a configuration of a management server according to the embodiment;
- FIG. 15 is a flowchart showing an example of an operation of storing trading record information in a distributed ledger by the management system according to the embodiment.
- FIG. 16 is a flow chart showing an example of the operation of trading execution by the management system according to the embodiment.
- a data trading method is a data trading method using a management system including a plurality of servers holding distributed ledgers, wherein each of the plurality of servers includes trading performance information.
- the above sales transaction data is stored in the distributed ledger, and each of the one or more sales performance information included in the one or more sales transaction data is a data group that is the target of the sales indicated by the sales performance information.
- each of the one or more data groups included in the one or more of the above-mentioned trading performance information is one or more of a plurality of data generated by a plurality of devices that satisfy the conditions corresponding to the data group
- one terminal of the first terminal owned by the seller of the target data group to be traded and the second terminal owned by the purchaser of the target data group is Acquiring the trading performance of one or more similar data groups similar to the target data group from the one or more trading performance information stored in the distributed ledger, and obtaining the trading performance of the acquired one or more similar data groups Based on this, the trading price of the target data group is determined.
- the trading price of the target data group is determined based on the trading performance information stored in the distributed ledger of a plurality of servers, the trading performance information that cannot be falsified and is open to the public and has transparency
- the sale price can be determined based on Therefore, the trading price of the target data group can be determined at an appropriate price.
- determining the trading price of the target data group based on past trading results has the advantage that it is easy to determine an appropriate trading price according to the market price of the target data group.
- a target data group to be traded includes a plurality of data, and various combinations are possible depending on the conditions. Therefore, there is a low possibility that a data group specified under exactly the same condition as the first condition for specifying the target data group has been traded in the past. Therefore, by determining the trading price of the target data group based on the trading performance of one or more similar data groups similar to the target data group, the target data group is specified under exactly the same condition as the first condition for specifying the target data group. Even if there is no data group to be traded, it is possible to easily determine an appropriate trading price according to the market price of the target data group.
- the trading price of the target data group is determined based on the trading history contained in the distributed ledger of multiple servers, even if communication with one server is not possible, the trading history can be obtained from other servers. It can be obtained and the selling price can be determined.
- one server fails or the communication path between one server fails and it is not possible to obtain trading results from another server Since it is possible to obtain the actual trading results, it is possible to reduce the possibility that the trading price cannot be determined because the actual trading results cannot be obtained. For this reason, it is possible to reduce the number of times a request is continuously resent to a single server due to communication failure, reduce the processing load or communication load until acquisition of trading results, and reduce the time required to acquire trading results. can be reduced. Therefore, it is possible to reduce the power consumption required to acquire one trading record.
- a plurality of target data contained in the target data group are identified from the plurality of data using a first condition, and each of the one or more similar data groups satisfies a second condition among the plurality of data.
- the second condition may be similar to the first condition, including a plurality of second data that are satisfied.
- the one terminal generates trading transaction data including trading performance information including the trading performance of the target data group after the trading of the target data group is established, and the one terminal generates the trading transaction data sending transaction data to at least one of the plurality of servers, the plurality of servers applying the trade transaction data received by the at least one server to the distributed ledger by executing a consensus algorithm; may be stored.
- the trading transaction data including the newly generated trading performance information is stored in the distributed ledger
- the trading performance information is used to determine the trading price of the target data group. It can be stored in a distributed ledger as transaction history information with transparency.
- the trading price of the target data group may be determined based on the trading price of one similar data group among the one or more similar data groups.
- the one similar data group may be the latest similar data group among the one or more similar data groups.
- the greater the number of the one or more similar data groups, the larger the trading price of the target data group may be determined.
- a first trading price range for determining a trading price of the target data group, which is allowed by the owner of the one terminal, is determined; and obtaining from the other terminal of the second terminal a second trading price range for determining the trading price of the target data, which is allowed by the owner of the other terminal;
- An overlapping price range in which the first trading price range and the second trading price range overlap may be specified, and a price included in the overlapping price range may be determined as the trading price of the target data group.
- the middle value of the overlapping price range may be determined as the trading price of the target data group.
- a terminal is a terminal communicably connected to a management system including a plurality of servers holding distributed ledgers via a network, wherein the plurality of servers each stores one or more trading transaction data including trading performance information in the distributed ledger, and each of the one or more trading performance information included in the one or more trading transaction data is indicated by the trading performance information
- a management system including a plurality of servers holding distributed ledgers via a network
- the plurality of servers each stores one or more trading transaction data including trading performance information in the distributed ledger, and each of the one or more trading performance information included in the one or more trading transaction data is indicated by the trading performance information
- Each of the one or more data groups included in the one or more of the above-mentioned one or more trading result information, including the trading results of the data group that is the target of trading is the data group in question among a plurality of data generated by a plurality of devices.
- the terminals being a first terminal owned by the seller of the target data group to be traded and a first terminal owned by the purchaser of the target data group; an acquisition unit, which is one of the two terminals, for acquiring a trading record of one or more similar data groups similar to the target data group from the one or more trading record information stored in the distributed ledger; a determination unit that determines a trading price of the target data group based on the trading results of the one or more similar data groups.
- the terminal determines the trading price of the target data group based on the trading performance information stored in the distributed ledger of a plurality of servers, it cannot be tampered with and is open and transparent.
- the trading price can be determined based on the trading record information. Therefore, the trading price of the target data group can be determined at an appropriate price.
- determining the trading price of the target data group based on past trading results has the advantage that it is easy to determine an appropriate trading price according to the market price of the target data group.
- a target data group to be traded includes a plurality of data, and various combinations are possible depending on the conditions. Therefore, there is a low possibility that a data group specified under exactly the same condition as the first condition for specifying the target data group has been traded in the past. Therefore, by determining the trading price of the target data group based on the trading performance of one or more similar data groups similar to the target data group, the target data group is specified under exactly the same condition as the first condition for specifying the target data group. Even if there is no data group to be traded, it is possible to easily determine an appropriate trading price according to the market price of the target data group.
- a trading price can be determined by acquiring a trading record.
- one server fails or the communication path between one server fails and it is not possible to obtain trading results from another server. Since it is possible to obtain the actual trading results, it is possible to reduce the possibility that the trading price cannot be determined because the actual trading results cannot be obtained. For this reason, it is possible to reduce the number of times a request is continuously resent to a single server due to communication failure, reduce the processing load or communication load until acquisition of trading results, and reduce the time required to acquire trading results. can be reduced. Therefore, it is possible to reduce the power consumption required to acquire one trading record.
- FIG. 1 is a diagram showing an example of the configuration of a management system according to an embodiment.
- the management system includes, for example, a seller terminal 10, a purchaser terminal 20, and management servers 30a-30c. These are connected by a network N.
- the network N is, for example, the Internet, a mobile phone carrier network, or the like, but may be composed of any communication line or network.
- management servers 30a to 30c are also referred to as the management servers 30 below, the management servers 30a to 30c may also be referred to as management servers A to C in some cases.
- the seller terminal 10 will be described below.
- FIG. 2 is a diagram illustrating an example of a configuration of a seller terminal according to the embodiment
- the seller terminal 10 is an example of a first terminal owned by the seller of the target data group to be traded.
- the seller terminal 10 transmits a request for sales results of one or more similar data groups similar to the target data group to the management servers 30a to 30c, and the management servers 30a to 30c receive the request.
- the seller terminal 10 determines the trading price of the target data group based on the acquired trading results of one or more similar data groups.
- the seller terminal 10 is, for example, a computer such as a smart phone, a tablet terminal, or a personal computer.
- the seller terminal 10 includes a latest price determination unit 101 , a trade confirmation determination unit 102 , a performance generation unit 103 , an input reception unit 104 , a display unit 105 , a communication unit 106 , a control unit 107 and a storage unit 108 .
- Seller terminal 10 can be realized by a processor executing a predetermined program using memory. Each component will be described below.
- the latest price determination unit 101 determines the trading price of the target data group based on the trading results of one or more similar data groups, which are the trading results obtained from the management servers 30a to 30c.
- the latest price determination unit 101 is an example of a determination unit.
- the trading results of one or more similar data groups include trading dates and times of each of one or more similar data groups and trading prices of each of one or more similar data groups.
- the latest price determination unit 101 identifies the trading price of one specific similar data group among the one or more similar data groups from the trading results of the one or more similar data groups,
- the trading price of the target data group is determined based on the trading price of one similar data group.
- one specific similar data group is the latest similar data group among one or more similar data groups.
- the latest price determination unit 101 refers to the trading dates and times included in the trading records of one or more similar data groups, and selects one specific similar Identify data groups. Then, the latest price determination unit 101 determines the trading price of the target data group based on the trading price included in the trading performance of one specific similar data group.
- the latest price determination unit 101 may determine the trading price of one specific similar data group as it is as the trading price of the target data group.
- the latest price determination unit 101 may determine a higher trading price for the target data group as the number of one or more similar data groups increases. Specifically, the latest price determination unit 101 determines the result of adding a first increase/decrease amount according to the number of one or more similar data groups to the trading price of one specific similar data group as the trading price of the target data group. The price may be determined.
- the larger the number of the one or more period similar data groups having the trading results in which the trading date is included in a predetermined period the larger the price determined as the first increase/decrease amount. be.
- the predetermined period is the period from the predetermined time to the current time.
- the predetermined time is a time earlier than the current time by a predetermined time interval.
- the predetermined time interval may be, for example, one day, two days, one week, one month, or the like.
- the first increase/decrease amount of the trading price may be determined according to the number of trading in a predetermined period.
- FIG. 3 is a table showing the relationship between the number of transactions in a similar data group and the first increase/decrease amount of the transaction price in a predetermined period.
- the first increase/decrease amount is set to a positive value when the number of transactions in the predetermined period is 8 or more, and is set to a negative value when the number of transactions is 5 or less. If it is set, it is not limited to this. That is, only positive values may be set for the first increase/decrease amount, or only negative values may be set.
- the latest price determination unit 101 may determine a higher trading price for the target data group as the number of similar data groups increased per unit time of one or more similar data groups increases. Specifically, the latest price determination unit 101 adds a second increase/decrease amount according to the increase in the number of one or more similar data groups per unit time to the trading price of one specific similar data group. It may be determined as a trading price of the target data group.
- the second increase/decrease amount is determined to be a larger price as the increase in the number of cases per unit time increases.
- the unit time may be, for example, one day, two days, one week, one month, or the like. For example, as shown in FIG.
- the second increase/decrease amount of the trading price may be determined according to the number of changes in the number of trading per unit time.
- FIG. 4 is a table showing the relationship between the number of changes in the number of trades per unit time in the similar data group and the second increase/decrease amount of the trade price.
- the second increase/decrease amount is set to a positive value when the number of changes in the number of transactions per unit time increases by 4 or more, and is set to a negative value when it decreases by 4 or more. , as long as it is set larger as the number of fluctuations increases. That is, the second amount of increase/decrease may be set to only a positive value, or may be set to only a negative value.
- the latest price determination unit 101 may determine the result of adding the first increase/decrease amount and the second increase/decrease amount to the trading price of one specific similar data group as the trading price of the target data group.
- the trading decision determination unit 102 determines whether to trade the target data group with the purchaser. Specifically, as shown in FIG. 5, the trade confirmation determination unit 102 causes the display unit 105 to display a UI 400 for inquiring of the seller whether the trade price of the target data group may be used for trading. Depending on the input to UI 400 received by 104, it may be determined whether to trade or not.
- FIG. 5 is a diagram showing an example of a UI for inquiring of a seller whether it is permissible to trade at the trading price of the target data group.
- the UI 400 displays a message 401 asking the seller whether it is acceptable to trade at the trading price of the target data group, a button 402 for accepting an affirmative response to the inquiry, and a button 403 for accepting a negative response to the inquiry. have.
- the trade decision determining unit 102 determines the trading price of the target data group. decides to trade the target data group with the purchaser.
- the trade decision determining unit 102 determines the trading price of the target data group. decides not to trade the target data group with the purchaser.
- the trading confirmation determination unit 102 In addition to displaying a UI for inquiring of the seller whether it is acceptable to trade at the trading price of the target data group, the trading confirmation determination unit 102 also displays a UI for trading at the desired purchase price as shown in FIG.
- a UI 410 may be displayed on the display unit 105 to inquire of the seller whether the sale is acceptable.
- the seller terminal 10 displays the UI 410 on the display unit 105 when receiving the desired purchase price information indicating that the purchaser wishes to purchase the target data group at the desired purchase price from the purchaser terminal 20. indicate.
- FIG. 6 is a diagram showing an example of a UI for inquiring of a seller whether the target data group may be traded at the desired purchase price.
- the UI 410 displays a message 411 for inquiring of the seller about a desired purchase price at which the purchaser can purchase the target data group, a button 412 for accepting an affirmative answer to the inquiry, and a button 413 for accepting a negative answer to the inquiry. and
- the trade decision determining unit 102 selects the target data at the desired purchase price. It may be decided to trade the flock with a purchaser.
- the trading decision determining unit 102 selects the target data at the desired purchase price. It may decide not to trade the flock with the purchaser.
- the trade confirmation determination unit 102 may display a UI 420 for price negotiations with the purchaser on the display unit 105, as shown in FIG.
- the seller terminal 10 displays the UI 420 on the display unit 105 when the seller terminal 10 receives the desired purchase price information indicating that the purchaser wants to purchase the target data group at the desired purchase price from the buyer terminal 20 .
- FIG. 7 is a diagram showing an example of a UI for price negotiation with a purchaser.
- the UI 420 includes a message 411, buttons 412 and 413, similar to the UI 410 in FIG. 6, and further includes an input field 424 for inputting a desired selling price for price negotiation and a confirm button 425.
- the desired selling price is accepted by the input accepting unit 104.
- Desired sale price information indicating the desire to sell the target data group at a price is transmitted to the purchaser terminal 20 .
- a positive response to the desired selling price information is obtained from the purchaser terminal 20, it is decided to trade the target data group with the purchaser at the desired selling price, and the desired selling price information is denied.
- a reasonable answer is obtained from the purchaser terminal 20, it may be decided not to trade the target data group with the purchaser at the desired purchase price.
- the trade confirmation determination unit 102 may transmit a notification to the purchaser terminal 20 via the communication unit 106 indicating that the trade is to be executed. good.
- the trade confirmation decision unit 102 decides not to trade the target data group with the purchaser, it notifies the purchaser terminal 20 via the communication unit 106 that the trade is not to be performed. You may send.
- the result generating unit 103 generates first transaction result information indicating that the transaction of the target data group was established between the seller and the purchaser at the determined transaction price when the target data group was sold. do. In the transaction of the target data group, it is determined by the transaction confirmation decision unit 102 that the target data group is to be traded with the purchaser, and the purchaser terminal 20 has decided to trade the target data group with the seller. It is established when the communication unit 106 receives a notification indicating that it will be performed.
- FIG. 8 is a table showing an example of the first trading record information.
- the first transaction record information includes a transaction management number that identifies the transaction record of one target data group, the date and time of the transaction, the item to be traded, the seller, the purchaser, the quantity, and so on. , including the sale price and the electronic signature of the seller.
- the item to be traded may be indicated by a condition for specifying the target data group. Note that the first trading performance information does not have to include the quantity.
- the input reception unit 104 receives input from the user.
- the input reception unit 104 may be a touch pad, touch panel, keyboard, mouse, or the like.
- the display unit 105 is, for example, a display that displays the UIs 400, 410, 420, and the like.
- the communication unit 106 communicates with the management server 30 via the network N. Accordingly, the communication unit 106 transmits to the management server 30 a request for a transaction record of one or more similar data groups similar to the target data group. In addition, the communication unit 106 receives the transaction record corresponding to the request from the management server 30 .
- the communication unit 106 is an example of an acquisition unit that acquires trading records.
- the communication unit 106 communicates with the purchaser terminal 20 via the network N. Thereby, the communication unit 106 may transmit the desired selling price information to the purchaser terminal 20 . Also, the communication unit 106 may receive desired purchase price information from the purchaser terminal 20 .
- the control unit 107 generates a request for trading performance of one or more similar data groups similar to the target data group according to the input received by the input receiving unit 104 .
- the transaction record request includes a first condition for specifying the target data group.
- the first condition is a condition used to specify a plurality of target data contained in a target data group from a plurality of data generated by a plurality of devices.
- the first condition includes, for example, at least one condition of the type of data, the period in which the data was generated, and the number of users of the devices in which the data was generated.
- the first condition may include at least two conditions, a data type condition, a data generation period condition, and a data generation device number condition.
- Types of data include, for example, recording reserved programs for BD (Blu-ray (registered trademark) Disc) recorders (including TVs with program recording functions), starting or ending times for washing machines, and washing reservations for washing machines.
- BD Blu-ray (registered trademark) Disc
- new product sales data at stores such as convenience stores (i.e. POS (Points Of Sales) data obtained from registers), passenger data at specific stations (i.e. , entry/exit data for automatic ticket gates at specific stations), viewing data for specific programs on video distribution services, etc.
- the period in which the data was generated can be a specific month, a specific week, the last month, the last week, the last 10 days, the last 5 days, a specific period (e.g., 3 months, 2 months, etc.) multiple days of the week, a period of only a specific time period included in a specific period (eg, one week, two weeks, etc.).
- the number of users of the device for which the data was generated is the number of users of the same model or the same type of device as the specific device, and the total number of users nationwide (nationwide) and local governments (prefectures, municipalities, etc.) the total number for each region, the total number for each region, and the total number for each user attribute.
- the user attributes are, for example, the age group, gender, number of household members, etc. set for each user of the device at the time of service registration.
- multiple data are collected by multiple devices including devices installed in houses (e.g. home appliances) and devices installed in public facilities (e.g. automatic ticket gates at stations, cash registers at stores, etc.)
- Data to be generated for example, operation logs generated by a plurality of devices.
- a plurality of data may be accumulated in the management server 30 or may be accumulated in another server different from the management server 30 .
- Each data is generated by the operation of each device.
- Each piece of data is information associated with the operation details of each device, the time when the data was generated, the address of the residence or facility where each device is installed, and the type or model of each device. .
- the control unit 107 controls the communication unit 106 to transmit the generated request to the management server 30 after generating a request for trading performance of one or more similar data groups similar to the target data group. Also, the control unit 107 may generate the UIs 410 and 420 based on the desired purchase price information received by the communication unit 106 and cause the display unit 105 to display the UIs 410 and 420 . Also, the control unit 107 may control the communication unit 106 to transmit the first transaction record information generated by the record generation unit 103 to the purchaser terminal 20 . Alternatively, the control unit 107 may control the communication unit 106 to transmit seller signature information indicating the electronic signature of the seller to the purchaser terminal 20 . Note that when the control unit 107 transmits the seller signature information to the purchaser terminal 20 , the seller terminal 10 does not have to include the result generation unit 103 .
- the storage unit 108 stores the sales performance and desired purchase price information of one or more similar data groups received by the communication unit 106 . Further, the storage unit 108 may store information necessary for the operation of the seller terminal 10, such as programs.
- FIG. 9 is a diagram illustrating an example of a configuration of a purchaser terminal according to the embodiment.
- the purchaser terminal 20 is an example of a second terminal owned by the purchaser of the target data group to be traded.
- the purchaser terminal 20 transmits a request for transaction results of one or more similar data groups similar to the target data group to the management servers 30a to 30c, and the management servers 30a to 30c transmit the request.
- the purchaser terminal 20 determines the trading price of the target data group based on the obtained trading results of one or more similar data groups.
- the purchaser terminal 20 is, for example, a computer such as a smart phone, a tablet terminal, or a personal computer.
- Purchaser terminal 20 includes latest price determination unit 201, trade confirmation determination unit 202, result generation unit 203, input reception unit 204, display unit 205, communication unit 206, control unit 207, storage unit 208, recording unit 209, transaction data It comprises a generation unit 210 , a transaction data verification unit 211 and a distributed ledger 212 .
- Buyer terminal 20 can be realized by a processor executing a predetermined program using memory. Each component will be described below.
- the latest price determination unit 201 determines the trading price of the target data group based on the trading results of one or more similar data groups, which are the trading results obtained from the management servers 30a to 30c.
- the latest price determination unit 201 is an example of a determination unit. Since the latest price determination unit 201 performs the same processing as the latest price determination unit 101, detailed description thereof will be omitted.
- the trading decision determination unit 202 determines whether to trade the target data group with the purchaser. Specifically, as shown in FIG. 10, the trade confirmation determination unit 202 causes the display unit 205 to display a UI 430 for inquiring of the purchaser as to whether it is acceptable to trade at the trade price of the target data group. Depending on the input to UI 430 received by 204, it may decide whether to trade or not.
- FIG. 10 is a diagram showing an example of a UI for inquiring of a purchaser whether it is permissible to trade at the trading price of the target data group.
- the UI 430 displays a message 431 asking the purchaser whether he/she can trade at the price of the target data group, a button 432 for accepting an affirmative response to the inquiry, and a button 433 for accepting a negative response to the inquiry. have.
- the trade decision determining unit 202 determines the trading price of the target data group. decides to trade the target data group with the seller.
- the trade decision determining unit 202 determines the trading price of the target data group. decides not to trade the target data group with the seller.
- the trade confirmation determination unit 202 In addition to displaying a UI for inquiring of the purchaser as to whether or not it is permissible to trade at the trade price of the target data group, the trade confirmation determination unit 202 also displays a UI for making a trade at the desired sales price as shown in FIG.
- a UI 440 may be displayed on the display unit 205 for inquiring of the purchaser as to whether or not it is acceptable.
- the purchaser terminal 20 displays the UI 440 on the display unit 205 when receiving the desired sales price information indicating that the seller wishes to sell the target data group at the desired sales price from the seller terminal 10. indicate.
- FIG. 11 is a diagram showing an example of a UI for inquiring of a purchaser whether the target data group may be traded at the desired selling price.
- the UI 440 displays a message 441 for inquiring of the purchaser about the desired selling price at which the seller can purchase the target data group, a button 442 for accepting an affirmative answer to the inquiry, and a button 443 for accepting a negative answer to the inquiry. and
- the trade decision determining unit 202 selects the target data at the desired selling price. It may be decided to trade the flock with a seller.
- the trade decision determining unit 202 selects the target data at the desired selling price. It may decide not to trade the group with the seller.
- the trade confirmation determination unit 202 may display a UI 450 for price negotiations with the purchaser on the display unit 205, as shown in FIG.
- the buyer terminal 20 displays the UI 450 on the display unit 205 when receiving the desired selling price information indicating that the buyer wishes to sell the target data group at the desired selling price from the seller terminal 10 .
- FIG. 12 is a diagram showing an example of a UI for price negotiation with a seller.
- the UI 450 includes a message 441, buttons 442 and 443, similar to the UI 440 of FIG. 11, and further includes an input field 454 for inputting a desired purchase price for price negotiation and a confirmation button 455.
- buttons 442 and 443 are not accepted by input accepting unit 204 and input to select confirmation button 455 is accepted by input accepting unit 204 with the desired purchase price entered in input field 454, the desired purchase price is accepted. Desired purchase price information indicating a desire to purchase the target data group at a price is transmitted to the seller terminal 10 . After that, when a positive response to the desired purchase price information is obtained from the seller terminal 10, it is decided to trade the target data group with the seller at the desired purchase price, and the desired purchase price information is denied. When a reasonable answer is obtained from the seller terminal 10, it may be decided not to trade the target data group with the seller at the seller's desired selling price.
- the trade confirmation determination unit 202 may transmit a notification indicating that the trade is to be performed to the seller terminal 10 via the communication unit 206. good. Further, when the trade confirmation decision unit 202 decides not to trade the target data group with the seller, the trade confirmation determination unit 202 notifies the seller terminal 10 via the communication unit 206 that the trade is not to be performed. You may send.
- the result generation unit 203 generates second transaction result information indicating that the sale of the target data group was concluded between the seller and the purchaser at the determined sale price when the sale of the target data group was successful. do.
- the sale of the target data group is made when the sale of the target data group with the seller is determined by the sale confirmation determination unit 202 and the sale of the target data group with the purchaser is performed from the seller terminal 10. It is established when the communication unit 206 receives a notification indicating that it will be performed.
- FIG. 13 is a table showing an example of the second trading performance information.
- the second transaction record information includes a transaction management number that identifies the transaction record of one target data group, the date and time of the transaction, the item to be traded, the seller, the purchaser, the quantity, and so on. , the sale price, the seller's electronic signature, and the buyer's electronic signature.
- the item to be traded may be indicated by a first condition for specifying the target data group.
- the second trading performance information does not have to include the quantity.
- the record generation unit 203 adds the purchaser's electronic signature to the first transaction record information to generate the second transaction record information.
- the communication unit 206 receives the seller signature information from the seller terminal 10
- the result generation unit 203 generates a sales management number for identifying the sales performance of one target data group, the date and time of the sale, the product to be sold,
- the signature of the seller indicated by the seller's signature information is added to the transaction performance information including the seller, the purchaser, the quantity, the transaction price, and the electronic signature of the purchaser, the second transaction performance information is obtained. may be generated.
- the input reception unit 204 receives input from the user.
- the input reception unit 204 may be a touch pad, touch panel, keyboard, mouse, or the like.
- the display unit 205 is, for example, a display that displays the UIs 430, 440, 450, and the like.
- the communication unit 206 communicates with the management server 30 via the network N. Accordingly, the communication unit 206 transmits to the management server 30 a request for a trading record of one or more similar data groups similar to the target data group. In addition, the communication unit 206 receives the transaction record corresponding to the request from the management server 30 .
- the communication unit 206 is an example of an acquisition unit that acquires the trading history.
- the communication unit 206 communicates with the seller terminal 10 via the network N. Thereby, the communication unit 206 may transmit the desired purchase price information to the seller terminal 10 . The communication unit 206 may also receive the desired selling price information from the seller terminal 10 .
- the control unit 207 generates a request for trading performance of one or more similar data groups similar to the target data group according to the input received by the input receiving unit 204 .
- the transaction record request includes a first condition for specifying the target data group. Since the first condition is the same as the explanation for the seller terminal 10, detailed explanation is omitted.
- the control unit 207 controls the communication unit 206 to transmit the generated request to the management server 30 . Further, the control unit 207 may generate the UIs 440 and 450 based on the desired selling price information received by the communication unit 206 and cause the display unit 205 to display the UIs 440 and 450 .
- the storage unit 208 stores the sales performance and desired selling price information of one or more similar data groups received by the communication unit 206 . Further, the storage unit 208 may store information necessary for the operation of the purchaser terminal 20, such as programs.
- the transaction data generator 210 generates trading transaction data.
- the transaction data generator 210 generates trade transaction data including the second trade record information generated by the record generator 203 after the trade of the target data group is established.
- the transaction data generation unit 210 transmits the generated sales transaction data to a plurality of management servers 30 via the communication unit 206 .
- the transaction data verification unit 211 verifies the validity of the transaction data when the communication unit 206 receives the transaction data. For example, the transaction data verification unit 211 verifies whether the transaction data received by the communication unit 206 has an electronic signature generated by a correct method. Note that this verification may be skipped.
- the transaction data received by the communication unit 206 is, for example, sales transaction data.
- the transaction data verification unit 211 executes a consensus algorithm for agreeing on the validity of the transaction data together with the plurality of management servers 30 .
- PBFT Practical Byzantine Fault Tolerance
- Known consensus algorithms include, for example, PoW (Proof of Work) or PoS (Proof of Stake).
- PoW Proof of Work
- PoS Proof of Stake
- the transaction data verification unit 211 receives reports indicating whether or not the verification of the transaction data has succeeded from each of the plurality of management servers 30, and the number of reports exceeds a predetermined number. determine whether or not Then, when the number of reports exceeds a predetermined number, the transaction data verification unit 211 may determine that the validity of the transaction data has been verified by the consensus algorithm.
- the transaction data verification unit 211 When the transaction data verification unit 211 confirms the validity of the transaction data, it causes the recording unit 209 to record the transaction data.
- the transaction data verification unit 211 verifies the validity of the trading transaction data received by the communication unit 206.
- the recording unit 209 records the transaction data by including the transaction data whose validity has been verified by the transaction data verification unit 211 in a block and storing it in the distributed ledger 212 .
- the recording unit 209 may be configured inside the distributed ledger 212 .
- the distributed ledger 212 stores trading transaction data.
- FIG. 14 is a diagram illustrating an example of a configuration of a management server according to the embodiment.
- the management server 30 includes a communication unit 301, a reading unit 302, a control unit 303, a recording unit 304, a trading performance information storage unit 305, a transaction data verification unit 306, and a distributed ledger 307. and
- the management server 30 can be realized by a processor executing a predetermined program using memory.
- the management server 30 is an example of a server. Each component will be described below.
- the communication unit 301 communicates with the seller terminal 10 via the network N.
- the communication unit 301 receives, from the seller's terminal 10, a request for the sales record of one or more similar data groups similar to the target data group.
- the communication unit 301 transmits the transaction record corresponding to the request to the seller terminal 10 .
- the communication unit 301 communicates with the purchaser terminal 20 via the network N.
- FIG. The communication unit 301 receives, from the purchaser terminal 20, a request for a transaction record of one or more similar data groups similar to the target data group.
- the communication unit 301 transmits the transaction record corresponding to the request to the purchaser terminal 20 .
- the communication unit 301 communicates with the purchaser terminal 20 and other management servers 30 via the network N.
- the communication unit 301 transmits and receives sales transaction data to and from the purchaser terminal 20 and other management servers 30 .
- the communication by the communication unit 301 may be performed by TLS (Transport Layer Security), and the encryption key for TLS communication may be held in the communication unit 301.
- TLS Transport Layer Security
- the reading unit 302 reads out the trading record corresponding to the request received by the communication unit 301 from the trading record information storage unit 305 . Specifically, based on the first condition for specifying the target data group included in the request, the reading unit 302 reads one or more similar data groups specified by the second condition similar to the first condition. is identified, and the trading record of the identified one or more similar data groups is read out from the trading record information storage unit 305 . That is, each of the one or more similar data groups includes a plurality of second data satisfying the second condition among the plurality of data.
- the control unit 303 determines a second condition similar to the first condition for specifying the target data group included in the request received by the communication unit 301 .
- the control unit 303 may determine the second condition by changing at least one other condition without changing at least one of the at least two conditions included in the first condition. For example, if the first condition includes three conditions: the data type condition, the period in which the data was generated, and the number of users of the device in which the data was generated, the data type condition, and
- the second condition may be generated by changing the condition for the period during which the data was generated without changing the condition for the number of users of the device for which the data was generated.
- the second condition is the condition of the same data type as the first condition, the condition of the number of users of the device for which the data was generated, and the condition of the period during which the data changed from the first condition was generated. including.
- the control unit 303 changes at least one other condition without changing at least one of the plurality of conditions included in the first condition, and changes the same condition as the first condition and the first condition.
- a second condition including other conditions modified from the condition may be generated as a condition similar to the first condition.
- the control unit 303 may change the condition of the period in which the data is generated by changing the start time and end time without changing the length of the period.
- the control unit 303 can generate a plurality of second conditions by changing the start time and the end time into a plurality of patterns. For example, the control unit 303 may change the condition for the number of users of the device for which the data is generated by changing the area including the address where the users reside without changing the number of users.
- the control unit 303 can generate a plurality of second conditions by changing the region to a plurality of patterns. In this way, the control unit 303 may generate multiple second conditions similar to the first condition.
- the reading unit 302 uses one or more second conditions generated by the control unit 303 to identify one or more similar data groups from a plurality of data.
- Each of the one or more similar data groups includes a plurality of second data satisfying a second condition corresponding to the similar data group among the plurality of data. That is, the reading unit 302 identifies one or more similar data groups that are similar to the target data group, and among the one or more identified similar data groups, the similar data group having a trading record is stored in the distributed ledger 307.
- One or more pieces of trading record information are specified, and the trading records of the identified one or more similar data groups are read out from the trading record information storage unit 305 .
- control unit 303 controls the communication unit 301 to send the one or more similar data groups read by the reading unit 302 to the terminal that transmitted the request, that is, the seller terminal 10 or the purchaser terminal 20. Send.
- the transaction data verification unit 306 verifies the validity of the transaction data when the communication unit 301 receives the transaction data. For example, the transaction data verification unit 306 verifies whether the transaction data received by the communication unit 301 has an electronic signature generated by a correct method. Note that this verification may be skipped.
- the transaction data received by the communication unit 301 is, for example, sales transaction data.
- the transaction data verification unit 306, together with a plurality of other management servers 30, executes a consensus algorithm for agreeing on the validity of transaction data.
- PBFT Practical Byzantine Fault Tolerance
- Known consensus algorithms include, for example, PoW (Proof of Work) or PoS (Proof of Stake).
- PoW Proof of Work
- PoS Proof of Stake
- the transaction data verification unit 306 receives a report indicating whether or not the verification of the transaction data has succeeded from each of the plurality of management servers 30, and the number of reports exceeds a predetermined number. determine whether or not Then, when the number of reports exceeds a predetermined number, the transaction data verification unit 306 may determine that the validity of the transaction data has been verified by the consensus algorithm.
- the transaction data verification unit 306 When the transaction data verification unit 306 confirms the validity of the transaction data, it causes the recording unit 304 to record the transaction data.
- the transaction data verification unit 306 verifies the validity of the trading transaction data received by the communication unit 301 .
- the recording unit 304 records the transaction data by including the transaction data whose validity has been verified by the transaction data verification unit 306 in a block and storing it in the distributed ledger 307 .
- the recording unit 304 may be configured inside the distributed ledger 307.
- the distributed ledger 307 stores trading transaction data.
- the distributed ledger 307 stores one or more pieces of trading transaction data in order to sequentially acquire and store trading transaction data.
- the management server 30 stores in the distributed ledger 307 one or more trade transaction data each including trade record information.
- Each of the one or more sales transaction data includes sales performance information.
- the transaction record information includes the transaction record of the data group that is the target of the transaction indicated by the transaction record information.
- a data group with a trading record includes one or more data satisfying conditions corresponding to the data group, among a plurality of data generated by a plurality of devices.
- the purchaser terminal 20 executes the consensus algorithm together with the plurality of management servers 30 and stores the trading transaction data as blocks in the distributed ledger 212, this is not the only option.
- the purchaser terminal 20 does not have to include the recording unit 209 , the transaction data generation unit 210 , the transaction data verification unit 211 and the distributed ledger 212 .
- at least a plurality of management servers 30 may have a distributed ledger 307, execute a consensus algorithm, and store trading transaction data in the distributed ledger 307 as blocks. Therefore, the seller terminal 10 may have functions similar to those of the recording unit 209 , the transaction data generation unit 210 , the transaction data verification unit 211 , and the distributed ledger 212 as well as the purchaser terminal 20 .
- FIG. 15 is a flow chart showing an example of the operation of storing transaction record information in a distributed ledger by the management system according to the embodiment.
- the seller terminal 10 and the purchaser terminal 20 trade the target data group (S101). The details of execution of trading will be described later with reference to FIG. 16 .
- step S101 the seller terminal 10 generates first sales performance information indicating that the sale of the target data group was established between the seller and the purchaser at the determined sales price. (S102).
- the seller terminal 10 transmits the generated first transaction record information to the buyer terminal 20 (S103).
- the purchaser terminal 20 Upon receiving the first transaction record information, the purchaser terminal 20 generates second transaction record information by adding the purchaser's electronic signature to the first transaction record information, and generates the transaction data containing the second transaction record information. is generated (S104).
- the trading transaction data is denoted as trading Tx.
- the purchaser terminal 20 transmits the generated sales transaction data to the management servers A to C (S105).
- the purchaser terminal 20 and management servers A to C execute a consensus algorithm to generate blocks containing trading transaction data and store them in the distributed ledgers 212 and 307 (S106). Thereby, the second trading record information included in the trading transaction data is stored in the distributed ledgers 212 and 307 .
- the sales transaction data may be generated by any one of management servers A to C.
- the second transaction record information generated by the buyer terminal 20 is transmitted to the management server, and the management server that receives the second transaction record information generates trade transaction data including the received second trade record information.
- the management server then transmits the trading transaction data to other management servers. Thereby, the process of step S106 may be started between the management servers A to C.
- FIG. 16 is a flow chart showing an example of the trading execution operation by the management system according to the embodiment.
- step S111 may be performed by the purchaser terminal 20 transmitting desired purchase price information indicating that the purchase of the target data group satisfying the first condition is to be made at the desired purchase price to the seller terminal 10 .
- the seller terminal 10 sends a request for transaction performance information of one or more similar data groups similar to the target data group to the management servers A to C (S112).
- the request includes a second condition similar to the first condition for specifying the target data group.
- the management servers A to C read out the transaction record information in response to the request (S113), and transmit the read transaction record information to the seller terminal 10 (S114). If any one of the management servers A to C transmits the transaction record information to the seller terminal 10, the other management servers do not need to transmit the transaction record information to the seller terminal 10. FIG.
- the seller terminal 10 determines the trading price of the target data group based on the received trading performance information (S115).
- the purchaser terminal 20 sends a request for transaction performance information of one or more similar data groups similar to the target data group to the management servers A to C (S116).
- the request includes a second condition similar to the first condition for specifying the target data group.
- the management servers A to C read the transaction record information in response to the request (S117), and transmit the read transaction record information to the purchaser terminal 20 (S118). If any one of the management servers A to C transmits the transaction record information to the buyer terminal 20, the other management servers do not need to transmit the transaction record information to the buyer terminal 20.
- FIG. 1 A first figure
- the purchaser terminal 20 determines the trading price of the target data group based on the received trading performance information (S119).
- the seller terminal 10 and the purchaser terminal 20 negotiate based on the sale price determined between them, and when both the seller and the purchaser provide input indicating that the sale is permitted, it is determined that the sale has been completed. , execute trading (S120).
- the seller of the seller terminal 10 obtains the determined sale price from the purchaser who is the owner of the purchaser terminal 20 .
- a payment of tokens corresponding to the purchase price may be made from the buyer's account to the seller's account.
- the purchaser who owns the purchaser terminal 20 obtains permission to acquire the target data group.
- the purchaser terminal 20 acquires permission information from the seller terminal 10, management servers A to C, other devices, etc., indicating that acquisition of the target data group is permitted from the server storing the target data group. You may The purchaser terminal 20 can acquire the target data group from the server in which the target data group is stored by using the permission information.
- the data trading method is a data trading method using a management system having a plurality of management servers holding distributed ledgers.
- Each of the plurality of management servers 30a-30c stores one or more trading transaction data including trading performance information in the distributed ledger 307.
- Each of the one or more pieces of trading performance information included in the one or more pieces of trading transaction data includes the trading performance of the data group that is the target of trading indicated by the trading performance information.
- Each of the one or more data groups included in the one or more pieces of trading performance information includes one or more data that satisfies the conditions corresponding to the data group among the plurality of data generated by the plurality of devices.
- the data trading method is executed by one of the seller terminal 10 owned by the seller of the target data group to be traded and the buyer terminal 20 owned by the buyer of the target data group. .
- the data trading method acquires the trading performance of one or more similar data groups similar to the target data group from the one or more trading performance information stored in the distributed ledger 307, and buys and sells the acquired one or more similar data groups. Determine the trading price of the target data group based on the performance.
- the trading price of the target data group is determined based on the trading performance information stored in the distributed ledger 307 of the plurality of management servers 30a to 30c, it cannot be tampered with and is open and transparent.
- the trading price can be determined based on the trading history information having Therefore, the trading price of the target data group can be determined at an appropriate price.
- determining the trading price of the target data group based on past trading results has the advantage that it is easy to determine an appropriate trading price according to the market price of the target data group.
- a target data group to be traded includes a plurality of data, and various combinations are possible depending on the conditions. Therefore, there is a low possibility that a data group specified under exactly the same condition as the first condition for specifying the target data group has been traded in the past. Therefore, in the data trading method, the trading price of the target data group is determined based on the trading results of one or more similar data groups that are similar to the target data group. Even if there is no data group specified under exactly the same conditions, it is possible to easily determine an appropriate trading price according to the market price of the target data group.
- a trading price can be determined by acquiring trading results from other management servers 30b and 30c.
- one management server 30a fails or a failure occurs in the communication path with one management server 30a, it is not possible to obtain the transaction results from the one management server 30a.
- it is possible to acquire the trading performance from the other management servers 30b and 30c it is possible to reduce the possibility that the trading price cannot be determined due to the failure to acquire the trading performance. For this reason, it is possible to reduce the number of times a request is continuously resent to one management server 30a due to communication failure. The time required can be reduced. Therefore, it is possible to reduce the power consumption required to acquire one trading record.
- one of the terminals of the seller terminal 10 and the purchaser terminal 20 after the transaction of the target data group has been completed, the transaction including the transaction record of the target data group.
- the one terminal transmits the sales transaction data to at least one server among the plurality of management servers 30a to 30c, and the plurality of management servers 30a to 30c transmit the sales transaction data to at least one server.
- the buy and sell transaction data received by the two servers are stored on the distributed ledger 307 by running a consensus algorithm.
- the trading performance information can be used to determine the trading price of the target data group. It can be stored in a distributed ledger as transaction history information with transparency.
- the trading price of the target data group is determined based on the trading price of one similar data group among the one or more similar data groups.
- one similar data group having a trading record of a reference trading price is the latest similar data group among the one or more similar data groups.
- the trade confirmation determination unit 102 of the seller terminal 10 and the trade confirmation determination unit 202 of the buyer terminal 20 receive an input indicating a positive response to the trade between the seller and the buyer, In addition, it is decided to trade the target data group based on the trading price when the buyer inputs an affirmative response to the trading with the seller.
- the target data group may be traded automatically without waiting for inputs from the seller and the buyer.
- the final sale determination unit 102 of the seller terminal 10 acquires the sale price of the target data group from the buyer terminal 20, and compares it with the sale price of the target data group determined by the latest price determination unit 101. , if the two trading prices match, it may be decided to trade the target data group at the trading price.
- the final sale determination unit 202 of the buyer terminal 20 acquires the sale price of the target data group from the seller terminal 10, compares it with the sale price of the target data group determined by the latest price determination unit 201, and determines two If the trading prices match, it may be decided to trade the target data group at the trading price. In this way, if the sale price determined by the seller terminal 10 and the sale price determined by the buyer terminal 20 match the target data group, the target data group is traded at the sale price. It may be determined that
- the second example is an example in which one trading price is automatically determined by comparing the range of trading prices allowed by both, instead of determining one trading price as in the first example.
- the latest price determination unit 101 of the seller terminal 10 determines the first trading price range for determining the trading price of the target data group, which is allowed by the seller.
- the first trading price range may be determined based on the trading price determined by the latest price determining unit 101 .
- the first trading price range may be determined as a predetermined price range above and below the trading price determined by the latest price determining unit 101 as the center.
- the first trading price range may be determined within a range of plus or minus a predetermined price difference of the trading price determined by the latest price determining unit 101 .
- the first trading price range may be determined as a predetermined price range in which the trading price determined by the latest price determining unit 101 is the lowest price.
- the first trading price range may be determined as a predetermined price range in which the trading price determined by the latest price determining unit 101 is the highest price.
- the predetermined price difference or predetermined price range may be set in the seller terminal 10 in advance by the seller.
- the latest price determination unit 201 of the purchaser terminal 20 determines the second trading price range for determining the trading price of the target data group, which is allowed by the purchaser. .
- the second trading price range may be determined based on the trading price determined by the latest price determining unit 201 .
- the second trading price range may be determined as a predetermined price range above and below the trading price determined by the latest price determining unit 201 as the center. That is, the second trading price range may be determined within a range of plus or minus a predetermined price difference of the trading price determined by the latest price determining unit 201 .
- the second trading price range may be determined as a predetermined price range in which the trading price determined by the latest price determining unit 201 is the lowest price.
- the second trading price range may be determined as a predetermined price range in which the trading price determined by the latest price determining unit 201 is the highest price.
- the predetermined price difference or predetermined price range may be set in the purchaser terminal 20 in advance by the purchaser.
- the seller terminal 10 acquires the second trading price range from the buyer terminal 20. Next, the seller terminal 10 identifies overlapping price ranges in which the first trading price range and the second trading price range overlap. Then, the seller terminal 10 may determine a price included in the overlapping price range as the trading price of the target data group. Note that this process may be performed by the purchaser terminal 20 . That is, the buyer terminal 20 acquires the first trading price range from the seller terminal 10 . Next, the purchaser terminal 20 identifies overlapping price ranges in which the first trading price range and the second trading price range overlap. Then, the purchaser terminal 20 may determine the price included in the overlapping price range as the trading price of the target data group.
- the intermediate value of the overlapping price range may be determined as the trading price of the target data group. That is, the average value of the minimum value and maximum value of the overlapping price range may be determined as the trading price of the target data group.
- the trading price of the target data group is determined to be 97 yen, which is an intermediate value between 96 yen and 98 yen.
- the desired price determined in reconsideration may be set to a price with a certain amount added or subtracted from the previous desired price. Also, the desired price determined in reconsideration may be determined by adding or subtracting half the difference from the previous desired price of the other party. In this case, addition or subtraction is performed to bring the price closer to the previous desired price of the other party.
- the seller terminal 10 generates the first transaction record information, transmits the first transaction record information to the purchaser terminal 20, and the buyer terminal 20 sends the first transaction record information to the purchaser's electronic mail.
- the sales transaction data is generated by adding the signature, the process of the seller terminal 10 and the process of the purchaser terminal 20 may be reversed. That is, the buyer terminal 20 generates the second transaction record information, transmits the second transaction record information to the seller terminal 10, and the seller terminal 10 adds the electronic signature of the seller to the second transaction record information. may generate buy and sell transaction data.
- Each device in the above embodiments is specifically a computer system composed of a microprocessor, ROM, RAM, hard disk unit, display unit, keyboard, mouse, and the like.
- a computer program is recorded in the RAM or hard disk unit.
- Each device achieves its function by the microprocessor operating according to the computer program.
- the computer program is constructed by combining a plurality of instruction codes indicating instructions to the computer in order to achieve a predetermined function.
- a system LSI is an ultra-multifunctional LSI manufactured by integrating multiple components on a single chip. Specifically, it is a computer system that includes a microprocessor, ROM, RAM, etc. . A computer program is recorded in the RAM. The system LSI achieves its functions by the microprocessor operating according to the computer program.
- each part of the constituent elements constituting each of the devices described above may be individually integrated into one chip, or may be integrated into one chip so as to include part or all of them.
- system LSI may also be called IC, LSI, super LSI, or ultra LSI depending on the degree of integration.
- the method of circuit integration is not limited to LSI, and may be realized by a dedicated circuit or a general-purpose processor.
- An FPGA Field Programmable Gate Array
- a reconfigurable processor that can reconfigure the connections and settings of the circuit cells inside the LSI may be used.
- the IC card or module is a computer system composed of a microprocessor, ROM, RAM and the like.
- the IC card or the module may include the super multifunctional LSI.
- the IC card or the module achieves its function by the microprocessor operating according to the computer program. This IC card or this module may be tamper resistant.
- the present disclosure may be the method shown above. Moreover, it may be a computer program for realizing these methods by a computer, or it may be a digital signal composed of the computer program.
- the present disclosure includes a computer-readable recording medium for the computer program or the digital signal, such as a flexible disk, hard disk, CD-ROM, MO, DVD, DVD-ROM, DVD-RAM, BD (Blu-ray) (Registered Trademark) Disc), semiconductor memory, or the like. Moreover, it may be the digital signal recorded on these recording media.
- a computer-readable recording medium for the computer program or the digital signal such as a flexible disk, hard disk, CD-ROM, MO, DVD, DVD-ROM, DVD-RAM, BD (Blu-ray) (Registered Trademark) Disc), semiconductor memory, or the like.
- the computer program or the digital signal may be transmitted via an electric communication line, a wireless or wired communication line, a network represented by the Internet, data broadcasting, or the like.
- the present disclosure may also be a computer system comprising a microprocessor and memory, the memory storing the computer program, and the microprocessor operating according to the computer program.
- the present disclosure can be used for data trading methods, terminals, and programs, and can be used for data trading methods, terminals, programs, and the like that can efficiently determine an appropriate trading price.
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Abstract
Description
まず、本開示に係るシステム構成について説明する。
図1は、実施の形態に係る管理システムの構成の一例を示す図である。
図2は、実施の形態に係る売却者端末の構成の一例を示す図である。
図9は、実施の形態に係る購買者端末の構成の一例を示す図である。
図14は、実施の形態に係る管理サーバの構成の一例を示す図である。
次に、以上のように構成された管理システムの動作について説明する。
本実施の形態に係るデータ売買方法は、分散台帳を保有している複数の管理サーバを備える管理システムを用いたデータ売買方法である。複数の管理サーバ30a~30cは、それぞれが売買実績情報を含む1以上の売買トランザクションデータを分散台帳307に格納している。1以上の売買トランザクションデータにそれぞれ含まれる1以上の売買実績情報のそれぞれは、当該売買実績情報で示される売買の対象であるデータ群の売買実績を含む。1以上の売買実績情報にそれぞれ含まれる1以上のデータ群のそれぞれは、複数の機器により生成される複数のデータのうち、当該データ群に対応する条件を満たす1以上のデータを含む。そして、データ売買方法は、売買の対象となる対象データ群の売却者が所有する売却者端末10、及び、当該対象データ群の購買者が所有する購買者端末20の一方の端末により実行される。データ売買方法は、分散台帳307に格納されている1以上の売買実績情報から、対象データ群に類似する1以上の類似データ群の売買実績を取得し、取得した1以上の類似データ群の売買実績に基づいて対象データ群の売買価格を決定する。
上記実施の形態では、売却者端末10の売買確定決定部102及び購買者端末20の売買確定決定部202は、売却者から購買者との間の売買に対する肯定的な回答を示す入力がなされ、かつ、購買者から売却者との間の売買に対する肯定的な回答を示す入力がなされた場合に、売買価格に基づく対象データ群の売買を行うことを決定するとしたが、これに限らずに、売却者及び購買者の入力を待たずに自動的に対象データ群の売買を行ってもよい。
第1の例では、売却者端末10の売買確定決定部102は、対象データ群の売買価格を購買者端末20から取得し、最新価格決定部101で決定した対象データ群の売買価格と比較し、2つの売買価格が一致していれば、当該売買価格で対象データ群の売買を行うことを決定してもよい。同様に、購買者端末20の売買確定決定部202は、対象データ群の売買価格を売却者端末10から取得し、最新価格決定部201で決定した対象データ群の売買価格と比較し、2つの売買価格が一致していれば、当該売買価格で対象データ群の売買を行うことを決定してもよい。このように、対象データ群に対して、売却者端末10で決定された売買価格と、購買者端末20で決定された売買価格とが一致していれば、当該売買価格で対象データ群を売買することが確定されてもよい。
第2の例は、第1の例のように1つの売買価格を決定するのではなく、両者が許容する売買価格の範囲を比較して、自動的に1つの売買価格を決定する例である。具体的には、売却者端末10の最新価格決定部101は、対象データ群の売買価格を決定するための第1売買価格範囲であって、売却者が許容する第1売買価格範囲を決定する。第1売買価格範囲は、最新価格決定部101が決定した売買価格を基準として決定されてもよい。例えば、第1売買価格範囲は、最新価格決定部101が決定した売買価格を中心として上下に所定の価格範囲に決定されてもよい。つまり、第1売買価格範囲は、最新価格決定部101が決定した売買価格のプラスマイナス所定の価格差の範囲に決定されてもよい。また、例えば、第1売買価格範囲は、最新価格決定部101が決定した売買価格を最低価格とする所定の価格範囲に決定されてもよい。また、例えば、第1売買価格範囲は、最新価格決定部101が決定した売買価格を最高価格とする所定の価格範囲に決定されてもよい。所定の価格差または所定の価格範囲は、売却者によって予め売却者端末10に設定されていてもよい。
上記実施の形態において、売却者端末10及び購買者端末20の間で価格交渉が行われる場合、希望売却価格及び希望購買価格(両者を含む場合、希望価格と表記する)を再考する回数が所定の回数に設定されてもよい。希望売却価格を再考する回数と、希望購買価格を再考する回数とは、同じ回数に設定されてもよいし、異なる回数に設定されてもよい。異なる回数に設定されている場合、両者の最高回数は、回数が少ない方を上限として設定されてもよい。
上記実施の形態において、UI420、450の入力欄424、454には、単一の希望価格が入力可能であるとしたが、これに限らずに、第1売買価格範囲及び第2売買価格範囲が入力可能であってもよい。
上記実施の形態において、売却者端末10が第1売買実績情報を生成して、第1売買実績情報を購買者端末20へ送信し、購買者端末20が第1売買実績情報に購買者の電子署名を追加することで売買トランザクションデータを生成するとしたがこれに限らずに、売却者端末10の処理と購買者端末20の処理とが逆であってもよい。つまり、購買者端末20が第2売買実績情報を生成して、第2売買実績情報を売却者端末10へ送信し、売却者端末10が第2売買実績情報に売却者の電子署名を追加することで売買トランザクションデータを生成してもよい。
上記実施の形態において、売買量を増加させることで売買実績を増加させることを抑制するために、売却者と購買者とが同じ人物である売買は、禁止されてもよい。つまり、売却者と購買者とが同じ人物である売買による売買実績は、分散台帳に格納されない。
以上のように、本開示について上記の実施の形態に基づいて説明してきたが、本開示は、上記の実施の形態に限定されないのはもちろんである。以下のような場合も本開示に含まれる。
20 購買者端末
30、30a~30c 管理サーバ
101、201 最新価格決定部
102、202 売買確定決定部
103、203 実績生成部
104、204 入力受付部
105、205 表示部
106、206、301 通信部
107、207、303 制御部
108、208 記憶部
209、304 記録部
210 トランザクションデータ生成部
211、306 トランザクションデータ検証部
212、307 分散台帳
302 読出部
305 売買実績情報記憶部
400、410、420、430、440、450 UI
401、411、431、441 メッセージ
402、403、412、413、432、433、442、443 ボタン
424、454 入力欄
425、455 確定ボタン
Claims (11)
- 分散台帳を保有している複数のサーバを備える管理システムを用いたデータ売買方法であって、
前記複数のサーバは、それぞれが売買実績情報を含む1以上の売買トランザクションデータを前記分散台帳に格納しており、
前記1以上の売買トランザクションデータにそれぞれ含まれる1以上の売買実績情報のそれぞれは、当該売買実績情報で示される売買の対象であるデータ群の売買実績を含み、
前記1以上の売買実績情報にそれぞれ含まれる1以上のデータ群のそれぞれは、複数の機器により生成される複数のデータのうち、当該データ群に対応する条件を満たす1以上のデータを含み、
前記データ売買方法は、売買の対象となる対象データ群の売却者が所有する第1端末、及び、当該対象データ群の購買者が所有する第2端末の一方の端末が、
前記分散台帳に格納されている前記1以上の売買実績情報から、前記対象データ群に類似する1以上の類似データ群の売買実績を取得し、
取得した前記1以上の類似データ群の売買実績に基づいて前記対象データ群の売買価格を決定する
データ売買方法。 - 前記対象データ群に含まれる複数の対象データは、前記複数のデータから第1条件を用いて特定され、
前記1以上の類似データ群のそれぞれは、前記複数のデータのうち第2条件を満たす複数の第2データを含み、
前記第2条件は、前記第1条件に類似する
請求項1に記載のデータ売買方法。 - さらに、
前記一方の端末は、前記対象データ群の売買が成立した後に、当該対象データ群の売買実績を含む売買実績情報を含む売買トランザクションデータを生成し、
前記一方の端末は、前記売買トランザクションデータを前記複数のサーバのうちの少なくとも1つのサーバに送信し、
前記複数のサーバは、前記少なくとも1つのサーバが受信した前記売買トランザクションデータを、コンセンサスアルゴリズムを実行することにより、前記分散台帳に格納する
請求項1または2に記載のデータ売買方法。 - 前記決定では、前記1以上の類似データ群のうちで1つの類似データ群の売買価格を基準として、前記対象データ群の売買価格を決定する
請求項1から3のいずれか1項に記載のデータ売買方法。 - 前記1つの類似データ群は、前記1以上の類似データ群のうちで最新の類似データ群である
請求項4に記載のデータ売買方法。 - 前記決定では、前記1以上の類似データ群の数が多いほど、前記対象データ群の売買価格を大きな価格に決定する
請求項4または5に記載のデータ売買方法。 - 前記決定では、前記1以上の類似データ群の単位時間当たりの増加件数が多いほど、前記対象データ群の売買価格を大きな価格に決定する
請求項4から6のいずれか1項に記載のデータ売買方法。 - 前記決定では、
前記対象データ群の売買価格を決定するための第1売買価格範囲であって、前記一方の端末の所有者が許容する第1売買価格範囲を決定し、
前記第1端末及び前記第2端末の他方の端末から、前記対象データ群の売買価格を決定するための第2売買価格範囲であって、前記他方の端末の所有者が許容する第2売買価格範囲を取得し、
前記第1売買価格範囲及び前記第2売買価格範囲が重複している重複価格範囲を特定し、
前記重複価格範囲に含まれる価格を、前記対象データ群の売買価格として決定する
請求項1から7のいずれか1項に記載のデータ売買方法。 - 前記決定では、前記重複価格範囲の中間値を、前記対象データ群の売買価格として決定する
請求項8に記載のデータ売買方法。 - 分散台帳を保有している複数のサーバを備える管理システムとネットワークを介して通信可能に接続されている端末であって、
前記複数のサーバは、それぞれが売買実績情報を含む1以上の売買トランザクションデータを前記分散台帳に格納しており、
前記1以上の売買トランザクションデータにそれぞれ含まれる1以上の売買実績情報のそれぞれは、当該売買実績情報で示される売買の対象であるデータ群の売買実績を含み、
前記1以上の売買実績情報にそれぞれ含まれる1以上のデータ群のそれぞれは、複数の機器により生成される複数のデータのうち、当該データ群に対応する第1条件を満たす複数の第1データを含み、
前記端末は、売買の対象となる対象データ群の売却者が所有する第1端末、及び、当該対象データ群の購買者が所有する第2端末の一方の端末であり、
前記分散台帳に格納されている前記1以上の売買実績情報から、前記対象データ群に類似する1以上の類似データ群の売買実績を取得する取得部と、
取得した前記1以上の類似データ群の売買実績に基づいて前記対象データ群の売買価格を決定する決定部と、を備える
端末。 - 分散台帳を保有している複数のサーバを備える管理システムを用いたデータ売買方法をコンピュータに実行させるためのプログラムであって、
前記複数のサーバは、それぞれが売買実績情報を含む1以上の売買トランザクションデータを前記分散台帳に格納しており、
前記1以上の売買トランザクションデータにそれぞれ含まれる1以上の売買実績情報のそれぞれは、当該売買実績情報で示される売買の対象であるデータ群の売買実績を含み、
前記1以上の売買実績情報にそれぞれ含まれる1以上のデータ群のそれぞれは、複数の機器により生成される複数のデータのうち、当該データ群に対応する第1条件を満たす複数の第1データを含み、
前記データ売買方法は、売買の対象となる対象データ群の売却者が所有する第1端末、及び、当該対象データ群の購買者が所有する第2端末の一方の端末が、
前記分散台帳に格納されている前記1以上の売買実績情報から、前記対象データ群に類似する1以上の類似データ群の売買実績を取得し、
取得した前記1以上の類似データ群の売買実績に基づいて前記対象データ群の売買価格を決定する
プログラム。
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