KR102360809B1 - Blockchain based decentralized ledger for highly reliable distribution and management trading appratus and method - Google Patents

Abstract

This specification registers the agricultural and livestock trade information as a distributed transaction ledger server based on the information obtained through the public data registration server in response to the platform server receiving the livestock products trading registration request from the supplier terminal and responding to the livestock products trading registration request and receiving the key value of the block corresponding to the agricultural and livestock transaction information and storing it as an identification ID of the agricultural and livestock transaction information; When the platform server receives a purchase request for the agricultural and livestock transaction information, registering the agricultural and livestock transaction information in the escrow server to mediate the delivery and payment of the purchase request for the agricultural and livestock transaction information; When the platform server receives the delivery completion request of the first transaction from the escrow server, the platform server inquires the transaction information of the first transaction in the distributed transaction ledger server and changes the status of the transaction information of the first transaction to 'complete' to do; And the platform server registering the transaction information of the first transaction as the agricultural and livestock trade registration server, and monitoring the rating information for the transaction information of the first transaction by acquiring and monitoring the supplier, the consumer, or other users; , discloses a method of trading livestock products using blockchain-based distributed ledger technology.

Description

BLOCKCHAIN BASED DECENTRALIZED LEDGER FOR HIGHLY RELIABLE DISTRIBUTION AND MANAGEMENT TRADING APPRATUS AND METHOD}

The present invention relates to a method and apparatus for trading livestock products using blockchain-based distributed ledger technology.

Blockchain technology is a Bitcoin thesis published in 2008 and is a distributed database management technology that is evaluated for superior integrity, confidentiality, and availability compared to existing systems. Recently, many studies have been conducted to apply this block chain technology to smart systems in various industries.

However, the conventional method of distribution and supply of livestock products is being conducted as a centralized management method led by the government, which has several structural limitations.

The technical task to be achieved in the present invention is to provide a platform that enables direct P2P (Peer to Peer, between individuals) transactions between producers and consumers, and can provide hedging of risks in the production and manufacture of agricultural and livestock products.

In addition, an object to be achieved in the present invention is to store and manage transaction information through a platform server in a distributed system of a distributed transaction ledger server, thereby preventing forgery and falsification of transaction information to ensure transparency of transaction information.

Agricultural products transaction method using a blockchain-based distributed ledger technology according to embodiments of the present invention comprises the steps of: receiving, by a platform server, a request for registration of agricultural and livestock products trading from a provider terminal; generating, by the platform server, agricultural and livestock trade information based on information obtained through a public data registration server in response to the agricultural and livestock trade registration request; The platform server registering the agricultural and livestock transaction information as a distributed transaction ledger server; The platform server receives the key value of the block corresponding to the agricultural and livestock transaction information and stores it as an identification ID of the agricultural and livestock transaction information, connects to the distributed transaction ledger server and based on the identification ID, the agricultural and livestock transaction information may include; obtaining

In the agricultural and livestock transaction method using the blockchain-based distributed ledger technology according to the embodiments of the present invention, when the platform server receives a purchase request for the agricultural and livestock transaction information, the agricultural and livestock transaction information is registered in the escrow server. Registering to mediate the delivery and payment of purchase requests for agricultural and livestock trade information; When the platform server receives the delivery completion request of the first transaction from the escrow server, the platform server inquires the transaction information of the first transaction in the distributed transaction ledger server and changes the status of the transaction information of the first transaction to 'complete' It may further include;

In the agricultural and livestock trading method using the blockchain-based distributed ledger technology according to the embodiments of the present invention, the platform server registers the transaction information of the first transaction as the agricultural and livestock sales registration server and records the transaction information of the first transaction. may include; obtaining and monitoring the rating information for the supplier, the consumer, or another user.

In the agricultural and livestock trading method using a blockchain-based distributed ledger technology according to embodiments of the present invention, the platform server calculates the reputation of the supplier based on the rating information for a plurality of transaction information made by the supplier step; may further include.

Agricultural products transaction method using a blockchain-based distributed ledger technology according to embodiments of the present invention comprises: receiving, by the platform server, a public data registration request from a provider terminal and registering the data in a public data registration server; and calculating, by the platform server, a compensation ratio corresponding to the data registration action based on the reputation of the provider in response to the data registration action, and paying a compensation amount according to the compensation ratio to the provider's account. .

A computer program according to an embodiment of the present invention may be stored in a medium to execute any one of the methods according to an embodiment of the present invention using a computer.

In addition to this, another method for implementing the present invention, another system, and a computer-readable recording medium for recording a computer program for executing the method are further provided.

Other aspects, features and advantages other than those described above will become apparent from the following drawings, claims, and detailed description of the invention.

According to embodiments of the present invention, it provides a platform for direct P2P (Peer to Peer) transactions between producers and consumers, and provides a hedging risk in the production and manufacturing of agricultural and livestock products using blockchain-based distributed ledger technology. A method and apparatus for trading water may be provided.

In addition, according to embodiments of the present invention, by storing and managing transaction information through a platform server in a distributed system of a distributed transaction ledger server, a blockchain-based distribution that prevents forgery and falsification of transaction information and guarantees transparency of transaction information It is possible to provide a method and apparatus for trading livestock products using ledger technology.

1 is a configuration diagram for explaining a platform server using public data and escrow according to an embodiment of the present invention.
2 is a network environment of a livestock trading system using a blockchain-based distributed ledger technology according to embodiments of the present invention.
3 is a block diagram of a platform server according to embodiments of the present invention.
4 is a block diagram of the storage medium of the agricultural and livestock trading platform server using the blockchain-based distributed ledger technology according to embodiments of the present invention.
5 to 7 are flowcharts of a livestock trading method using a blockchain-based distributed ledger technology according to embodiments of the present invention.
8 is an operation flow chart for direct trade of agricultural and livestock products according to an embodiment of the present invention.
9 is a flowchart of a method of operating a platform server according to an embodiment of the present invention, and is for explaining a compensation or penalty paid according to registration, recommendation, and evaluation of public data.
10 is an exemplary diagram of a user interface provided by a platform server.
11 is a flowchart illustrating a risk hedging operation of the platform server according to an embodiment of the present invention.
12 is a block diagram illustrating the implementation of a decentralized application (dApp) installed on a platform server according to an embodiment of the present invention.

Hereinafter, various embodiments of the present disclosure are described in connection with the accompanying drawings. Various embodiments of the present disclosure are capable of various changes and may have various embodiments, specific embodiments are illustrated in the drawings and the related detailed description is described. However, this is not intended to limit the various embodiments of the present disclosure to the specific embodiments, and should be understood to include all modifications and/or equivalents or substitutes included in the spirit and scope of the various embodiments of the present disclosure. In connection with the description of the drawings, like reference numerals have been used for like elements.

“Includes,” which can be used in various embodiments of the present disclosure. or "may include." Expressions such as etc. indicate the existence of the disclosed corresponding function, operation or component, and do not limit one or more additional functions, operations or components. Also, in various embodiments of the present disclosure, "includes." Or "have." The term such as is intended to designate that there is a feature, number, step, operation, component, part, or combination thereof described in the specification, but one or more other features or number, step, operation, component, part or It should be understood that it does not preclude the possibility of the existence or addition of combinations thereof.

In various embodiments of the present disclosure, expressions such as “or” include any and all combinations of words listed together. For example, "A or B" may include A, may include B, or may include both A and B.

Expressions such as “first”, “second”, “first”, or “second” used in various embodiments of the present disclosure may modify various components of various embodiments, but do not limit the components. does not For example, the above expressions do not limit the order and/or importance of corresponding components. The above expressions may be used to distinguish one component from another. For example, both the first user device and the second user device are user devices, and represent different user devices. For example, without departing from the scope of the various embodiments of the present disclosure, a first component may be referred to as a second component, and similarly, a second component may also be referred to as a first component.

When a component is referred to as being “connected” or “connected” to another component, the component may be directly connected to or connected to the other component, but the component and It should be understood that other new components may exist between the other components. On the other hand, when an element is referred to as being “directly connected” or “directly connected” to another element, it will be understood that no new element exists between the element and the other element. should be able to

In an embodiment of the present disclosure, terms such as “module”, “unit”, “part”, etc. are terms for designating a component that performs at least one function or operation, and such component is hardware or software. It may be implemented or implemented as a combination of hardware and software. In addition, a plurality of "modules", "units", "parts", etc. are integrated into at least one module or chip, except when each needs to be implemented in individual specific hardware, and thus at least one processor. can be implemented as

Terms used in various embodiments of the present disclosure are used only to describe a specific embodiment, and are not intended to limit the various embodiments of the present disclosure. The singular expression includes the plural expression unless the context clearly dictates otherwise.

Unless defined otherwise, all terms used herein, including technical or scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art to which various embodiments of the present disclosure pertain.

Terms such as those defined in a commonly used dictionary should be interpreted as having a meaning consistent with the meaning in the context of the related art, and unless explicitly defined in various embodiments of the present disclosure, ideal or excessively formal terms not interpreted as meaning

Hereinafter, various embodiments of the present invention will be described in detail with reference to the accompanying drawings.

According to embodiments of the present invention, it is possible to provide a distributed network based on blockchain and a peer-to-peer (P2P) open market platform rather than the existing centralized method.

In addition, according to embodiments of the present invention, it is possible to provide stable and predictable consumption and production by using a blockchain-based smart contract to achieve high-trust contract cultivation and contract storage.

In addition, according to the embodiments of the present invention, P2P (Peer to Peer, between individuals) direct transactions between producers and consumers are activated, and sellers and consumers are dispersed and diversified to provide risk hedging in the distribution and management of livestock products with high volatility. can

In addition, according to embodiments of the present invention, it is possible to ensure the intrinsic transparency of the block chain with the smart contract of True Farm to enable the fixed price and private sale of agricultural and livestock products.

In addition, according to embodiments of the present invention, it is possible to provide efficient distribution network management by quantitatively verifying whether or not forgery of the distribution process from the production of agricultural and livestock products to the final consumer and tracking the distribution history.

In addition, according to the embodiments of the present invention, a virtuous cycle of open market ecosystem is created by calculating the contribution for community development and rewarding it with cryptocurrency, and imposing a penalty that restricts participation in the platform for false data sharing or evaluation And by activating it, we can provide an open platform where producers and consumers can freely participate.

1 is a configuration diagram for explaining a platform server using public data and escrow according to an embodiment of the present invention.

The configuration of the platform server may include public data in the database of a trusted institution, high-reliability and high-efficiency service through the platform server's own blockchain, and risk hedging in the actual transaction process through the agricultural and livestock escrow.

For example, the present invention can utilize existing public data and new public data. Existing public data may include agricultural and livestock distribution history public data, agricultural and livestock production area information and wholesale and retail prices, agricultural weather information, and other public data. The agricultural and livestock distribution history public data may include agricultural and livestock cultivation status, service information, and history information. Distribution history of agricultural and livestock products can be managed transparently by using public data. In addition, the distributed transaction ledger server stores and manages public data on agricultural and livestock distribution history, agricultural and livestock production area information, wholesale and retail prices, agricultural weather information, and other public data to increase the reliability of the distribution process of agricultural and livestock products between producers, sellers, and consumers. have. Through such reliable data, rational and planned production, management, and consumption can be possible. The agricultural and livestock production area information and wholesale and retail price data may include information on the quality of the production process and result and fair evaluation information on the quality. Consumers can compare the quality and price between agricultural and livestock products through data that has been fairly evaluated and registered. This increases the reliability between producers and consumers, and enables fair and reasonable price distribution. In addition, it is possible to provide a system capable of direct transaction at a reasonable price by simplifying the conventional complex distribution structure between producers and consumers. Agricultural weather information can be used to predict the appropriate purchase time and farm yield. Reliable data can be provided to external public institutions (e.g., Meteorological Administration, Ministry of Agriculture, Food and Rural Affairs, Rural Development Administration, Rural Economic Research Institute, etc.), and external public institutions analyze past weather data such as frequency and timing of natural disasters It can contribute to measuring the quantity and price of livestock products that can be traded at each trading period.

Furthermore, it is possible to hedge the producer's loss by paying a compensation amount set on a certain basis to the producer for the loss caused by the difference between the predicted sales volume and the actual sales volume. For example, when 'drought', which is a compensation payment condition input in relation to an umbrella, is detected for a user who sells an umbrella, a predetermined compensation may be paid to the user. Through this, the damage caused to the producer, that is, the damage caused by the change of circumstances that occurs during the sale of the product produced after the production activity can be reduced. In another embodiment, when it is detected that a 'natural disaster', a condition for payment of compensation that can affect the majority of agricultural and livestock products, has occurred, the platform server compensates users whose sales revenue is expected to decrease due to the 'natural disaster' can pay Normally, if sales revenue is generated by producing and selling agricultural and livestock products to producers, a certain portion of the sales revenue can be paid to the platform server as a commission. On the other hand, consumers can conclude a purchase action by writing a digital contract to purchase agricultural and livestock products based on the purchase quantity, purchase time, and purchase price. In case the contract is not performed, a certain amount of compensation may be paid. Other public data may include beef history information, livestock farm statistics, livestock breeding statistics, direct trade establishments, national food material production area information, fruit shipment agreement details, contract cultivation status, crop insurance premium statistics by city and province, and agricultural observation statistics. .

New public data include escrow institution information, contract reference data for smart contracts, sensor data, cultivated agricultural products information, farm and farmer information. Escrow institution information is information on real consignment institutions that producers and consumers can trust and trade livestock products through smart contracts. Contract reference data for smart contracts is reliable reference data that can be used as smart contract contract terms. Sensor data is various sensor data that detects and detects agricultural and livestock production and distribution history.

2 is a network environment of a livestock trading system using a blockchain-based distributed ledger technology according to embodiments of the present invention.

Agricultural products transaction system using blockchain-based distributed ledger technology is a platform server 100, a public data registration server 200, a distributed ledger transaction system 300 using a block chain, a supplier terminal 401, and a consumer terminal 402 ), may be configured to include an escrow server (500).

The platform server 100 refers to a computing device including one or more processors, and converts the trading information received from the supplier based on the information obtained through the public data registration server 200 to register the agricultural and livestock transaction information, and to register When a purchase intention signal of a consumer who wants to purchase is received through the transaction information, a transaction corresponding to the transaction information is generated, block data, which is a set of transactions, is added to the distributed ledger transaction system 300, and invoice data corresponding to the block data is generated. It can be registered in the escrow server 500 to mediate the processing of invoice data through the escrow server 500 .

The public data registration server 200 may receive and register agricultural and livestock cultivation status, service information, and history information from suppliers or consumers.

The distributed ledger transaction system 300 may manage transaction information of agricultural and livestock products through the distributed transaction ledger servers 310, 320, 330, 340, which are a plurality of nodes. The distributed ledger transaction system 300 allows all nodes in a network to provide resources (processing power, storage space, data or network bandwidth, etc.) to each other without the coordination of a central node. The distributed ledger transaction system 300 may refer to a distributed ledger technology in which a ledger recording transaction information is distributed to a P2P network rather than a central server of a specific institution, and nodes in the network record and manage it jointly.

The provider may access the platform server 100 through the provider terminal 401 . The supplier terminal 401 may register agricultural and livestock production area information, wholesale and retail prices, agricultural weather information, and other public data in the public data registration server 200 through the platform server 100 . The public data registration server 200 may be used to register rating information for the registered public data and to calculate the reputation of the data provider.

The consumer may access the platform server 100 through the consumer terminal 402 . The consumer terminal 402 may transmit a signal to request the purchase of the desired agricultural and livestock products by searching for agricultural and livestock trade information. The consumer terminal 402 can process the deposit of the sale price through the escrow server 500 after the purchase of agricultural and livestock products, delivery information of agricultural and livestock products, whether or not the contract is fulfilled.

The escrow server 500 is a device that provides a brokerage service for transaction information contracted through the platform server 100 . The escrow server 500 can control whether or not the contract is fulfilled and deliver the agricultural and livestock products reliably and safely by proceeding with the contract performance report.

3 is a block diagram of a platform server 100 according to embodiments of the present invention.

As shown in FIG. 3 , the platform server 100 may include a storage medium 110 , a processor 120 , an output unit 130 , an input unit 140 , and a communication unit 150 .

The processor 120 is a configuration for overall controlling the platform server 100 . Specifically, the processor 120 controls the overall operation of the platform server 100 by using various programs stored in the storage medium 110 of the platform server 100 . For example, the processor 120 may include a CPU, a RAM, a ROM, and a system bus. Here, the ROM is a configuration in which an instruction set for system booting is stored, and the CPU copies the operating system stored in the storage medium 110 of the platform server 100 to the RAM according to the instructions stored in the ROM, and executes the O/S. Boot the system. Upon completion of booting, the CPU may perform various operations by copying various applications stored in the storage medium 110 to the RAM and executing them. Although it has been described above that the platform server 100 includes only one CPU, it may be implemented with a plurality of CPUs (or DSPs, SoCs, etc.).

According to an embodiment of the present invention, the processor 120 may be implemented as a digital signal processor (DSP) processing a digital signal, a microprocessor, or a time controller (TCON). However, the present invention is not limited thereto, and a central processing unit (CPU), a micro controller unit (MCU), a micro processing unit (MPU), a controller, an application processor (AP), or It may include one or more of a communication processor (CP) and an ARM processor, or may be defined by a corresponding term. In addition, the processor 120 may be implemented as a system on chip (SoC), large scale integration (LSI), or a field programmable gate array (FPGA) having a built-in processing algorithm.

The output unit 130 may display an interface generated by the platform server 100 by the storage medium 110 . According to an embodiment of the present invention, the output unit 130 may display a user interface for a user input input through the input unit 140 . The output unit 130 may output the stored graphic data, visual data, auditory data, and vibration data under the control of the storage medium 110 .

The output unit 130 may be implemented as various types of display panels. For example, the display panel is a liquid crystal display (LCD), organic light emitting diode (OLED), active-matrix organic light-emitting diode (AM-OLED), liquid crystal on silicon (LcoS), digital light processing (DLP), etc. It can be implemented with various display technologies. In addition, the output unit 130 may be coupled to at least one of a front area, a side area, and a rear area of the display panel in the form of a flexible display.

The output unit 130 may be implemented as a touch screen having a layer structure. The touch screen may have a function of detecting not only a display function but also a touch input position, a touched area, and even a touch input pressure, and also has a function of detecting a proximity touch as well as a real-touch. can

The input unit 140 may include a user interface for inputting various information to the platform server 100 .

The communication unit 150 is configured to transmit and receive data to and from devices such as a server and other user terminals. The communication unit 150 includes a Bluetooth communication unit, a BLE (Bluetooth Low Energy) communication unit, a near field communication unit, a WLAN (Wi-Fi) communication unit, a Zigbee communication unit, an infrared (IrDA, infrared Data Association) communication unit, a WFD ( It may include a Wi-Fi Direct) communication unit, an ultra wideband (UWB) communication unit, a short-distance communication unit such as an Ant+ communication unit, a mobile communication network, or a wired Ethernet network.

The platform server 100 may further include a storage medium (not shown) storing various data for overall operations, such as a program for processing or controlling the processor 120 . The storage medium may store a plurality of application programs (or applications) driven in the platform server 100 , data for operation of the platform server 100 , and commands. At least some of these application programs may be downloaded from an external server through wireless communication. Also, at least some of these application programs may exist on the platform server 100 from the time of shipment for a basic function of the platform server 100 . The application program is stored in a storage medium, and may be driven by the processor 120 to perform an operation (or function) of the platform server 100 .

4 is a block diagram of the storage medium 110 of the agricultural and livestock trading platform server using a blockchain-based distributed ledger technology according to embodiments of the present invention.

The data registration unit 111 may perform a function of registering by transferring at least one of the received agricultural and livestock production area information, wholesale and retail price information, distribution history information, and agricultural weather information to the public data registration server. The data registration unit 111 may collect rating information for agricultural and livestock production area information, wholesale and retail price information, distribution history information, and agricultural weather information from the public data registration server 200 or collect rating information directly.

In another embodiment, the data registration unit 111 may generate a registration request for agricultural and livestock products from the supplier based on the information obtained through the public data registration server. The data register 111 requests the sale quantity, sale price, and sale item included in the sale registration request to the public data registration server 200, and the sale quantity, sale price, and/or validity of the sale item included in the sale registration request can be evaluated individually. The public data registration server 200 may determine a production area according to the location of the provider of the corresponding sale registration request, and search the sale price of the sale item in the relevant production area by quantity. The validity may be evaluated based on the data retrieved in this way. Automatically changes information (sales quantity, sale price, and/or sale items, etc.) whose evaluated validity is not TRUE to information obtained from the public data registration server 200, and responds to the changed transaction registration request to the supplier terminal may request confirmation.

The reward determiner 112 may determine the user's reward ratio in consideration of rating information on data registered by the user, rating information on transaction information processed by the user, and durability of rating information. The compensation amount can be calculated by multiplying the user's compensation ratio by the trading amount. For example, a compensation ratio may be determined by assigning a weight value to the rating information. The weight value of each rating information may be determined in consideration of the persistence of each rating information and the ripple power of each rating information. The persistence of the rating information may be determined based on a period for maintaining a certain level without fluctuations in the input rating information. For example, when the first rating information, the second rating information, and the third rating information are input, when the first rating information and the second rating information are the same and the first rating information and the third rating information are different, the first rating information The duration of the rating information may be set in proportion to the time between the input of the first rating information and the input of the third rating information. If the last input rating information is the same as the first rating information, a duration proportional to the time from the time the first rating information is input to the current time may be set.

The ripple effect of the rating information may be determined in consideration of the number of users who input the same rating information. For example, when the number of users who input the first rating information is L, a ripple power proportional to L may be reflected in the first rating information. Rating information input by more users may have a higher impact.

The transaction ledger registration unit 113 may add transaction information corresponding to the registration request for agricultural and livestock products to the block data of the distributed transaction ledger server. The transaction ledger registration unit 113 may receive the block key value generated by adding it to the block data of the distributed transaction ledger server. The transaction ledger registration unit 113 may generate a digital certificate including a block key value in correspondence with each transaction information.

The brokerage registration unit 114 may mediate delivery and payment for the first agricultural and livestock transaction information by registering the first agricultural and livestock transaction information in the escrow server when a purchase request for the first agricultural and livestock product transaction information is received.

The brokerage registration unit 114 generates and transmits livestock products brokerage data including the purchase quantity included in the purchase request received from the consumer terminal, the purchase product, and the time of purchase to the escrow server 500 . In response to the mediation data from the platform server 100, the escrow server 500 may set a delivery completion target time after the point of purchase, and may generate delivery process information based on information registered by the supplier of the purchased product. . Escrow server 500 transfers to the target point of delivery completion and when receiving delivery completion information corresponding to the livestock products brokerage data, the delivery process information can be 'completed' and stored as a complete list of livestock products brokerage data. In this case, the delivery completion information may be generated based on the delivery completion information received from all of the consumer terminal, the delivery company server, and the provider terminal.

Transaction completion processing unit 115 may receive the transaction completion information of agricultural and livestock products transaction information from the escrow server. The transaction completion processing unit 115 may access block data in which transaction information is stored using a digital certificate of transaction information to add transaction completion information to the transaction information. Block data of transaction information to which transaction completion information is added can be processed so that write permission is removed so that additional writing is not possible.

When the risk management unit 116 receives a compensation payment signal, which is at least one of a price drop signal for agricultural and livestock trade information, a trade cancellation signal, and a quality deterioration signal due to climate change, the compensation amount is calculated based on the compensation payment signal and the supplier's reputation can do.

The risk management unit 116 may generate a price drop signal of a traded item, a trade cancellation signal, and a quality deterioration signal due to climate change.

The price drop signal is when the average value of the suppliers' selling prices and the average of the actual transaction prices exceeds a preset threshold price range, when the suppliers' trading prices fall by more than a preset ratio from the previously registered trading prices, the risk management department (116).

The trading cancellation signal may be generated when a signal for canceling the trading is received after a purchase request including a purchase intention is received by the consumers, and a signal that delivery is completed is generated by the escrow server.

The quality degradation signal due to climate change may be generated in consideration of mountain area information, weather information, and agricultural and livestock cultivation status information obtained through the public data registration server 200 . As for the quality degradation signal due to climate change, when meteorological information suitable for the weather condition of the first crop is input, the quality of the first crop is recorded at a normal level, and weather information that does not match the weather condition of the second crop is input, When the production area information of the second crop is received as 'bad', a signal for declining quality of the second crop may be generated. The production area information of the second crop is based on information input from the supplier, and may be obtained through the public data registration server 200 . The risk management unit 116 may pay the calculated compensation to the account of the second provider. The risk management unit 116 receives a price drop signal, a trade cancellation signal, a quality deterioration signal due to climate change, etc. in addition to the case where the actual transaction is made and a profit is generated, so that even if the actual transaction is not performed, the second supplier's compensation You can pay to your account. In this case, the compensation of the preset ratio is determined based on the reputation of the second supplier, but the expected profit generated if there is no signal of a price drop or a signal of quality deterioration due to climate change may be considered. When a trading cancellation signal is generated, a preset penalty may be paid while a preset compensation is paid to the account of the second provider.

5 to 7 are flowcharts of a livestock trading method using a blockchain-based distributed ledger technology according to embodiments of the present invention.

In S110, the platform server 100 may receive the first agricultural and livestock sales registration request from the first supplier terminal.

In S120, the platform server 100 may generate the first livestock products transaction information corresponding to the first livestock products trade registration request based on the information obtained through the public data registration server.

In S130, the platform server 100 may register the first agricultural and livestock transaction information as a distributed transaction ledger server.

In S140, the platform server 100 may receive the block key value of the first agricultural and livestock transaction information from the distributed transaction ledger server.

The distributed transaction ledger server shares the first agricultural and livestock transaction information with other servers (nodes) included in the distributed transaction ledger system, and generates a shared result block key value.

In S150, the platform server 100 may mediate delivery and payment for the first agricultural and livestock transaction information by registering the first agricultural and livestock transaction information in the escrow server when a purchase request for the first agricultural and livestock transaction information is received. .

The platform server 100 generates livestock products brokerage data including the purchase quantity included in the purchase request received from the consumer terminal, the purchase product, and the time of purchase, and transmits it to the escrow server 500 . In response to the mediation data from the platform server 100, the escrow server 500 may set a delivery completion target time after the point of purchase, and may generate delivery process information based on information registered by the supplier of the purchased product. . Escrow server 500 transfers to the target point of delivery completion and when receiving delivery completion information corresponding to the livestock products brokerage data, the delivery process information can be 'completed' and stored as a complete list of livestock products brokerage data. In this case, the delivery completion information may be generated based on the delivery completion information received from all of the consumer terminal, the delivery company server, and the provider terminal.

In S160, the platform server 100 may receive the first transaction completion information of the first agricultural and livestock transaction information from the escrow server.

In S170, the platform server 100 can be delivered to the distributed transaction ledger server by adding the first transaction completion information to the first agricultural products transaction information in response to whether the transaction of the first agricultural and livestock product transaction information is completed. The platform server 100 may remove the write permission of the block data to which the transaction completion information of the agricultural and livestock transaction information is added to make it impossible to process the modification of the agricultural and livestock transaction information.

In S210, the platform server 100 may receive at least one of agricultural and livestock production area information, wholesale and retail price information, distribution history information, and agricultural weather information from the first user.

The platform server 100 may receive and request information on the agricultural and livestock production areas to the provider terminals of each production area. The platform server 100 compares the first agricultural and livestock product production area information received from the first supplier terminal and the second agricultural products production area information received from the second provider terminal, the first agricultural and livestock products production area information and / or the second agricultural products production area It is possible to determine the reliability of the information and register the reliable first agricultural and livestock product origin information and / or second agricultural and livestock product origin information. The first non-reliable agricultural and livestock product region information and / or the second agricultural and livestock products region information may further perform a trust step through other users. A user to perform the trust step may be determined in consideration of the location of the first provider terminal and the location of the second provider terminal, and the user to perform the trust step may be a consumer who has transacted with the first provider and/or the second provider. .

Wholesale and retail price information may be generated based on transaction information registered and completed in the platform server. Distribution history information may be generated based on transaction information including delivery completion information according to a data transmission/reception log between the escrow server and the platform server. Distribution history information may be generated by classifying transaction information in which delivery completion information acquired through the escrow server is registered by region and item.

Agricultural meteorological information may be generated based on information obtained from sensors installed in farmland of agricultural and livestock products and/or information obtained periodically by a crawling method from a meteorological agency, portal, etc.

In S220, the platform server 100 may transmit at least one of the received agricultural and livestock production area information, wholesale and retail price information, distribution history information, and agricultural weather information to the public data registration server.

In S230, the platform server 100 may collect rating information for at least one of agricultural and livestock production area information, wholesale and retail price information, distribution history information, and agricultural weather information from a user terminal accessing the public data registration server. The platform server 100 may record and manage registered rating information based on identification information of public data.

In S240, the platform server 100 may receive the first rating for the agricultural and livestock production region information from the second user.

In S250, the platform server 100 may receive a second rating for agricultural and livestock production region information from a third user.

The platform server 100 determines whether the first rating and the second rating match, and when the first rating and the second rating match, the first rating and the second rating are given a first weight, respectively, and the first user It is possible to calculate the flatness of (S270). In this case, different weights may be given based on the number of users who have registered matching ratings. When the same m-th rating from n people is registered, the reputation of the n m-th ratings may be determined as a product of a weight value and n and m values. The weight value may be determined based on the LUT table by corresponding to the number n of users who input a matching rating.

When the first rating and the second rating do not match, the platform server 100 may calculate the reputation of the first user by giving a second weight lower than the first weight to the first rating and the second rating, respectively (S275) ).

In another embodiment, the platform server 100 may recalculate the reputation of the first user based on the persistence of the reputation.

In S310, the platform server 100 may receive a second registration request for agricultural and livestock products from the second provider terminal.

In S320, the platform server 100 may generate a second livestock products transaction information corresponding to the second livestock products trade registration request based on the information obtained through the public data registration server. The platform server 100 requests the sale quantity, sale price, and sale item included in the sale registration request to the public data registration server 200, and the sale quantity, sale price, and/or validity of the sale item included in the sale registration request can be evaluated individually. The public data registration server 200 may determine a production area according to the location of the provider of the corresponding sale registration request, and search the sale price of the sale item in the relevant production area by quantity. The validity may be evaluated based on the data retrieved in this way. The information (sales quantity, sale price, and/or purchase items, etc.) whose evaluated validity is not true is automatically changed to information obtained from the public data registration server 200, and confirmation is made to the supplier terminal for the changed transaction registration request. you can request

In S330, the platform server 100 may register the second agricultural and livestock transaction information as a distributed transaction ledger server.

In S340, the platform server 100 may receive the block key value of the second agricultural and livestock transaction information from the distributed transaction ledger server. The distributed transaction ledger server shares the second agricultural and livestock transaction information with other servers (nodes) included in the distributed transaction ledger system, and creates a shared result block key value.

In S350, the platform server 100 receives a compensation payment signal, which is at least one of a price drop signal for the second livestock product transaction information, a trade cancellation signal, and a quality decrease signal due to climate change, based on the compensation payment signal and the supplier's reputation can calculate the compensation amount.

The platform server 100 may generate a price drop signal of a traded item, a trade cancellation signal, and a quality deterioration signal due to climate change.

The price drop signal is a platform server when the average value of the suppliers' trading prices and the average value of the actual transaction prices exceed a preset threshold price range, when the suppliers' trading prices fall by more than a preset ratio from the previously registered trading prices (100) can be generated by

The trading cancellation signal may be generated when a signal for canceling the trading is received after a purchase request including a purchase intention is received by the consumers, and a signal that delivery is completed is generated by the escrow server.

The quality degradation signal due to climate change may be generated in consideration of mountain area information, weather information, and agricultural and livestock cultivation status information obtained through the public data registration server 200 . As for the quality degradation signal due to climate change, when meteorological information suitable for the weather condition of the first crop is input, the quality of the first crop is recorded at a normal level, and weather information that does not match the weather condition of the second crop is input, When the production area information of the second crop is received as 'bad', a signal for declining quality of the second crop may be generated. The production area information of the second crop is based on information input from the supplier, and may be obtained through the public data registration server 200 .

In S360, the platform server 100 may pay the calculated compensation to the account of the second provider.

The platform server 100 receives a price drop signal, a trade cancellation signal, a quality deterioration signal due to climate change, etc. other than the case where the actual transaction is made and a profit is generated, so that the compensation of the second provider You can pay to your account. In this case, the compensation of the preset ratio is determined based on the reputation of the second supplier, but the expected profit generated if there is no signal of a price drop or a signal of quality deterioration due to climate change may be considered. When a trading cancellation signal is generated, a preset penalty may be paid while a preset compensation is paid to the account of the second provider.

8 is an operation flow chart for direct trade of agricultural and livestock products according to an embodiment of the present invention.

Referring to FIG. 8, the platform server may register agricultural and livestock trade registration data on the basis of the data received from the producer terminal in the distributed transaction ledger server. At this time, based on the data obtained from the public data registration server, it is possible to generate agricultural and livestock trade information including transaction conditions such as sales price, sales volume, and time in the sale registration data. A purchase contract signal for registered transaction information may be received from the consumer terminal. In response to the purchase contract signal, the platform server can mediate the real transaction of agricultural and livestock trade information by the escrow server, and monitor whether the status information of the agricultural and livestock transaction information is complete. When the agricultural and livestock trade information is completed, the platform server may receive the purchase price from the consumer and pay the producer a sales price of a certain percentage of the purchase price. In this case, the sale price may be cryptocurrency generated by the smart contract. In relation to the transaction information between the producer and the consumer, it is possible to obtain rating information on the transaction satisfaction evaluation from the consumer terminal during a preset history registration period, and send a reward corresponding to the rating information to the producer's account. At this time, the reward paid by the platform server may be cryptocurrency by a smart contract, and using the rating information obtained by a plurality of consumers, that is, weighting based on whether the obtained rating information matches or not It can be determined based on the reputation of the producer calculated by the method of granting.

9 is a flowchart of a method of operating a platform server according to an embodiment of the present invention, and is for explaining a compensation or penalty paid according to registration, recommendation, and evaluation of public data.

Referring to Figure 9, the operation method of the platform server, can provide agricultural and livestock public data to producers and consumers of agricultural and livestock products, the user who is the registrant of each public data, compensation or penalty for registration, recommendation, evaluation of public data can be assigned to your account. The platform server pays compensation for the act of registering public data on agricultural and livestock products, but differential compensation can be paid according to the quality, durability, and rating of public data. Here, the persistence is an ability calculated in proportion to the period in which the corresponding public data is used and utilized, and may be proportional to the period in which the corresponding public data is searched, the corresponding public data is confirmed, and the rating of the corresponding public data is input.

In addition, according to this embodiment, the user's rating information on the quality of agricultural and livestock products, the producer's production behavior, the consumer's purchase behavior, etc. can be collected. As the user's reputation increases, voting power, which is an activity index of the platform server, may be increased, and a reward corresponding to the voting power may be paid to the user's account. On the other hand, if a malicious rating is given by oneself or an evaluation score is given by another user, the reward may be reduced and the service of the platform server may be set to be limitedly used after a certain period of time.

In FIG. 10 , the platform server may build a database of public data in connection with the public data registration server. The platform server can obtain and provide public data by sending a query to the public data registration server. In addition, the platform server can register agricultural and livestock trade information through the distributed transaction ledger server, and verify the agricultural and livestock transaction information. The platform server may check whether the transaction is performed and report the transaction through the escrow server (S101, S102, S103). Here, the escrow server refers to a reliable intermediary service providing server that delivers the pre-entrusted real thing to the transaction party when the conditions programmed in the block chain are satisfied. There may be more than one escrow server, and the brokerage fee of each escrow server may be different. 11 is a flowchart for explaining the risk hedging operations (S1101, S1102, S1103, S1104, S1105) of the platform server according to an embodiment of the present invention.

Referring to Figure 11, the platform server can hedging risks associated with producers of agricultural and livestock products through the installed program. According to an embodiment, the platform server may provide an insurance contract for risk hedging against unpredictable risks (such as natural disasters) to producers and/or consumers. If there is no risk, the platform server can acquire a certain part of the producer's sales price as transaction fee income. When a 'natural disaster', which is a preset compensation payment condition, is detected (S1103), the platform server may pay a subsidy of a first predetermined amount or more to the producer and a subsidy of a second predetermined amount or more to the consumer (S1105). If the conditions for payment of compensation (for example, loss due to natural disaster) are not detected in the platform server, the platform server pays the producer a small fee in proportion to the sales volume of agricultural and livestock products in a smart contract (reward, cryptocurrency, specific country). Money, etc.) can be paid (S1104), and a predetermined fee proportional to the amount of purchase of agricultural and livestock products can be paid to the consumer through a smart contract (reward, cryptocurrency, money of a specific country, etc.).

12 is a configuration diagram for explaining the implementation of a decentralized application (dApp) installed on a platform server according to an embodiment of the present invention. The app installed on the platform server can be implemented as a distributed voice recognition app in the form of a blockchain-based smart contract.

Referring to FIG. 12 , the platform server may include a distributed app for concluding an electronic contract (smart contract) in a blockchain environment. For the implementation of the distributed app of the platform server, it can be programmed using the conventional Internet programming languages HTML, CSS, JavaScript and Solidity specialized for the Ethereum blockchain. The platform server is connected to the distributed transaction ledger server, which is a blockchain, using the existing Internet protocol, and can communicate data using a security protocol such as HTTPS. The platform server supports distributed network connection with other distributed apps through P2P communication using SWARM or WHISPER rather than the existing server-client-oriented communication method and can provide a full open platform.

In one embodiment, the platform server may include a blockchain-based smart contract and big data analysis environment.

According to one embodiment, when the producer uploads information about the producer and production process information and registers the product to be sold in the distributed app, the consumer directly purchases the producer's product using the distributed app and learns about the product and the producer's production behavior. An evaluation service may be provided. The platform server can build a faster and more transparent distribution network by applying big data analysis and statistical technology. The platform server can quickly provide information such as expected yield, appropriate purchase time, and appropriate time to sellers and consumers. In this case, the distributed app may be an application service that operates based on a blockchain network, which is a distributed ledger, using a P2P inter-app communication method without a server, but is not limited thereto. Through this, the government, companies, and individuals that provide agricultural and livestock trading services can receive a small fee each time a transaction occurs, and producers and consumers can trade without unnecessary large brokerage fees.

The device described above may be implemented as a hardware component, a software component, and/or a combination of the hardware component and the software component. For example, devices and components described in the embodiments may include, for example, a processor, a controller, an arithmetic logic unit (ALU), a digital signal processor, a microcomputer, a field programmable gate array (FPGA). , a programmable logic unit (PLU), microprocessor, or any other device capable of executing and responding to instructions, may be implemented using one or more general purpose or special purpose computers. The processing device may execute an operating system (OS) and one or more software applications executed on the operating system. A processing device may also access, store, manipulate, process, and generate data in response to execution of the software. For convenience of understanding, although one processing device is sometimes described as being used, one of ordinary skill in the art will recognize that the processing device includes a plurality of processing elements and/or a plurality of types of processing elements. It can be seen that can include For example, the processing device may include a plurality of processors or one processor and one controller. Other processing configurations are also possible, such as parallel processors.

Software may comprise a computer program, code, instructions, or a combination of one or more thereof, which configures a processing device to operate as desired or is independently or collectively processed You can command the device. The software and/or data may be any kind of machine, component, physical device, virtual equipment, computer storage medium or apparatus, to be interpreted by or to provide instructions or data to the processing device. , or may be permanently or temporarily embody in a transmitted signal wave. The software may be distributed over networked computer systems and stored or executed in a distributed manner. Software and data may be stored in one or more computer-readable recording media.

The method according to the embodiment may be implemented in the form of program instructions that can be executed through various computer means and recorded in a computer-readable medium. The computer-readable medium may include program instructions, data files, data structures, etc. alone or in combination. The program instructions recorded on the medium may be specially designed and configured for the embodiment, or may be known and available to those skilled in the art of computer software. Examples of the computer-readable recording medium include magnetic media such as hard disks, floppy disks and magnetic tapes, optical media such as CD-ROMs and DVDs, and magnetic such as floppy disks. - includes magneto-optical media, and hardware devices specially configured to store and execute program instructions, such as ROM, RAM, flash memory, and the like. Examples of program instructions include not only machine language codes such as those generated by a compiler, but also high-level language codes that can be executed by a computer using an interpreter or the like. The hardware devices described above may be configured to operate as one or more software modules to perform the operations of the embodiments, and vice versa.

As described above, although the embodiments have been described with reference to the limited embodiments and drawings, various modifications and variations are possible from the above description by those skilled in the art. For example, the described techniques are performed in an order different from the described method, and/or the described components of the system, structure, apparatus, circuit, etc. are combined or combined in a different form than the described method, or other components Or substituted or substituted by equivalents may achieve an appropriate result.

Therefore, other implementations, other embodiments, and equivalents to the claims are also within the scope of the following claims.

Claims (6)

receiving, by a platform server communicating with a blockchain-based distributed network, a request for registration of agricultural and livestock products from a provider terminal;
generating, by the platform server, agricultural and livestock trade information based on information obtained through a public data registration server in response to the agricultural and livestock trade registration request;
The platform server registering the agricultural and livestock transaction information as a distributed transaction ledger server;
The platform server receives the key value of the block corresponding to the agricultural and livestock transaction information and stores it as an identification ID of the agricultural and livestock transaction information, connects to the distributed transaction ledger server and based on the identification ID, the agricultural and livestock transaction information obtaining - the key value of the block is a value generated as a result of the distributed transaction ledger server sharing the agricultural and livestock transaction information with other nodes connected to a distributed network;
When the platform server receives a compensation payment signal that is at least one of a price drop signal for the agricultural and livestock trade information, a trade cancellation signal, and a quality deterioration signal due to climate change, consumers who access the platform server through a distributed network Receives ratings to evaluate products and production activities from, and determines the compensation based on the reputation of the supplier of the agricultural and livestock transaction information calculated using the ratings and the expected profit for the agricultural and livestock transaction information, transaction information calculating a compensation amount proportional to the durability and ripple power of the rating information about the provider obtained from the user, and registering the compensation amount to the provider's account;
The durability is
It is determined based on a period of maintaining a certain level without fluctuations in the rating information,
The ripple power is
A method of trading livestock products using blockchain-based distributed ledger technology, determined by considering the number of users who entered the same rating information. The method of claim 1,
When the platform server receives a purchase request for the agricultural and livestock transaction information, registering the agricultural and livestock transaction information to the escrow server to mediate the delivery and payment collection of the purchase request for the agricultural and livestock transaction information;
When the platform server receives a delivery completion request of the first transaction from the escrow server, the platform server inquires the transaction information of the first transaction in the distributed transaction ledger server and changes the status of the transaction information of the first transaction to 'complete' further comprising; a method of trading livestock products using a blockchain-based distributed ledger technology.
delete delete The method of claim 1,
receiving, by the platform server, a public data registration request from a provider terminal and registering data in the public data registration server; and
The step of calculating, by the platform server, a compensation ratio corresponding to the data registration action based on the reputation of the provider in response to the data registration action, and paying compensation according to the compensation ratio to the provider's account; A method of trading livestock products using distributed ledger technology based on
A computer program stored in a computer-readable storage medium for executing the method of any one of claims 1, 2, and 5 using a computer.

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