KR20220055604A - Method for managing a blockchain-based agricultural supply chain - Google Patents

Abstract

The present invention relates to a blockchain-based agricultural product supply chain management method, which can ensure transparency of an agricultural product supply chain, comprising the steps of: recording at least one first smart contract in a blockchain network; recording at least one second smart contract in the blockchain network; recording a third smart contract in the blockchain network; determining whether to purchase an agricultural product; paying profits for agricultural product investment; and paying the remaining amount excluding a raw material price and the profits to an agricultural product producer node.

Description

A blockchain-based agricultural supply chain management method

The present disclosure relates to a blockchain-based agricultural supply chain management method, and more specifically, to a decentralized agricultural supply chain management method based on blockchain.

Recently, the 4th industrial revolution, the next-generation industrial revolution made by the convergence of information and communication technologies, has become an issue. Automation in the existing industry meant passive operation according to a pre-entered program, but in the 4th industrial revolution, it means that the machine actively grasps the situation and operates. Technology and life sciences are leading the way.

For example, development and attempts are being made for the convergence of information and communication technology and agriculture. Specifically, the conventional agricultural production and supply technology has been developed based on a local database. When designing an agricultural product supply chain management system based on a local database, it may be difficult to ensure transparency in the agricultural product supply process.

Meanwhile, among the technologies of the 4th industrial revolution, blockchain is attracting attention as a major technology. Blockchain is a technology that provides security and transparency as a public transaction ledger. These blockchains are attracting attention, and the Bitcoin (Bitcoin) platform and Ethereum (ethereum) platform, which are blockchain-based cryptocurrency technologies, are also receiving attention.

Therefore, there is a need for research and development on the convergence of blockchain technology and agriculture to ensure transparency in the agricultural supply process.

Republic of Korea Patent Publication No. 10-2020-0094822

The present disclosure has been devised in response to the above-described background technology, and is intended to provide a blockchain-based agricultural product supply chain management method.

The technical problems of the present disclosure are not limited to the technical problems mentioned above, and other technical problems not mentioned will be clearly understood by those skilled in the art from the following description.

According to some embodiments of the present disclosure for solving the problems as described above, a blockchain-based agricultural supply chain management method is disclosed. The method includes: at least one raw material provider node recording at least one first smart contract including raw material provision information in a block chain network; at least one agricultural product investor node recording at least one second smart contract including agricultural product investment information in the block chain network; When at least one agricultural producer node participates in the first smart contract and the second smart contract, recording a plurality of transactions including information on each of a plurality of agricultural production processes in a block chain network; recording, by the at least one agricultural producer node, a third smart contract related to the sale of the produced agricultural products in the block chain network; When at least one consumer node participates in the third smart contract, a plurality of transactions including information on each of the agricultural production processes are inquired to obtain quality information on the produced agricultural products, and whether the agricultural products are purchased determining; when the at least one consumer node completes the purchase of the agricultural product, a raw material price is paid to the at least one raw material provider node based on the first smart contract; When the raw material price is paid to the at least one raw material provider node, based on the second smart contract, the step of paying the proceeds for the agricultural product investment to the at least one agricultural product investor node; and when the profit for the agricultural product investment is paid to the at least one agricultural product investor node, the price for the raw material and the proceeds are excluded from the agricultural product sale price generated as the at least one consumer node completes the purchase of the agricultural product It may include; a step in which the amount is paid to the agricultural producer node.

In addition, the blockchain network may include the at least one raw material provider node, at least one agricultural product investor node, and the at least one agricultural product producer node.

In addition, the step of the at least one raw material provider node recording the at least one first smart contract including the raw material supply information in the block chain network includes: information on the raw material provided by the at least one raw material provider node, the raw material generating the first smart contract including payment information and payment conditions for the raw material price; and by transmitting the first smart contract to at least one node included in the blockchain network, when the first smart contract is verified through a consensus algorithm, the first smart contract in each of the plurality of nodes included in the blockchain network It may include; generating a block and causing the first smart contract to be recorded in the first block.

In addition, when the at least one consumer node completes the purchase of the agricultural product, the step of paying the raw material price to the at least one raw material provider node based on the first smart contract is included in the first smart contract and when the payment condition of the raw material price is satisfied, the raw material price is paid to the at least one raw material provider node.

In addition, the step of the at least one agricultural product investor node recording the at least one second smart contract including the agricultural product investment information in the block chain network includes information on the agricultural products invested by the at least one agricultural product investor node and the agricultural products generating the second smart contract including a payment condition of the proceeds for the investment; and by transmitting the second smart contract to at least one node included in the blockchain network, when the second smart contract is verified through a consensus algorithm, the second smart contract in each of the plurality of nodes included in the blockchain network It may include; generating a block and causing the second smart contract to be recorded in the second block.

In addition, when the raw material price is paid to the at least one raw material provider node, based on the second smart contract, the step of paying the proceeds for the agricultural product investment to the at least one agricultural product investor node includes the second When the payment condition of the profit for the agricultural product investment included in the smart contract is satisfied, the step of paying the profit to the at least one agricultural product investor node; may include.

In addition, when at least one agricultural producer node participates in the first smart contract and the second smart contract, the at least one agricultural producer node blocks a plurality of transactions including information on each of a plurality of agricultural production processes The step of recording in the chain network may include: recognizing, by the at least one agricultural producer node, an identification code attached to agricultural products being produced for each of the plurality of agricultural production processes; generating, by the at least one agricultural producer node, information on a specific production process in which the identification code is recognized among the plurality of agricultural production processes and a specific transaction including the identification code; and by transmitting the specific transaction to at least one node included in the blockchain network, when the specific transaction is verified through a consensus algorithm, a specific block is generated in each of a plurality of nodes included in the blockchain network, and causing the specific transaction to be recorded in the specific block.

The technical solutions obtainable in the present disclosure are not limited to the above-mentioned solutions, and other solutions not mentioned are clearly to those of ordinary skill in the art to which the present disclosure belongs from the description below. can be understood

The present disclosure provides a decentralized agricultural supply chain management method based on blockchain, thereby ensuring transparency for the agricultural supply chain.

Effects obtainable in the present disclosure are not limited to the above-mentioned effects, and other effects not mentioned will be clearly understood by those of ordinary skill in the art to which the present disclosure belongs from the description below. .

Various aspects are now described with reference to the drawings, wherein like reference numbers are used to refer to like elements throughout. In the following example, for purposes of explanation, numerous specific details are set forth in order to provide a thorough understanding of one or more aspects. It will be evident, however, that such aspect(s) may be practiced without these specific details.
1 is a diagram for explaining an example of a blockchain-based agricultural product supply chain management system in which various aspects of the present disclosure can be implemented.
2 is a flowchart for explaining an example of a blockchain-based agricultural product supply chain management method according to some embodiments of the present disclosure.
3 depicts a simplified, general schematic diagram of an example computing environment in which embodiments of the present disclosure may be implemented.

Various embodiments and/or aspects are now disclosed with reference to the drawings. In the following description, for purposes of explanation, numerous specific details are set forth to provide a thorough understanding of one or more aspects. However, it will also be appreciated by one of ordinary skill in the art that such aspect(s) may be practiced without these specific details. The following description and accompanying drawings set forth in detail certain illustrative aspects of one or more aspects. These aspects are illustrative, however, and some of various methods may be employed in the principles of the various aspects, and the descriptions set forth are intended to include all such aspects and their equivalents. Specifically, as used herein, “embodiment”, “example”, “aspect”, “exemplary”, etc. are not to be construed as advantageous or advantageous over any aspect or design described herein. It may not be.

Further, various aspects and features will be presented by a system that may include one or more apparatuses, terminals, servers, devices, components and/or modules, and the like. The various systems may include additional apparatuses, terminals, servers, devices, components and/or modules, etc. and/or the apparatuses, terminals, servers, etc. discussed in connection with the drawings; It should also be understood and appreciated that it may not include all of devices, components, modules, etc.

As used herein, the terms "computer program," "component," "module," "system," and the like, may be used interchangeably with each other, and include computer-related entities, hardware, firmware, software, combinations of software and hardware; or to the execution of software. For example, a component can be, but is not limited to being, a process running on a processor, a processor, an object, a thread of execution, a program, and/or a computer. For example, both an application running on a computing device and the computing device may be a component. One or more components may reside within a processor and/or thread of execution. A component may be localized within one computer. A component may be distributed between two or more computers.

In addition, these components can execute from various computer readable media having various data structures stored therein. Components may communicate via a network such as the Internet with another system, for example, via a signal having one or more data packets (eg, data and/or signals from one component interacting with another component in a local system, distributed system, etc.) may communicate via local and/or remote processes depending on the data being transmitted).

Hereinafter, the same or similar components are assigned the same reference numerals regardless of reference numerals, and overlapping descriptions thereof will be omitted. In addition, in describing the embodiments disclosed in the present specification, if it is determined that detailed descriptions of related known technologies may obscure the gist of the embodiments disclosed in the present specification, the detailed description thereof will be omitted. In addition, the accompanying drawings are only for easy understanding of the embodiments disclosed in the present specification, and the technical ideas disclosed in the present specification are not limited by the accompanying drawings.

The terminology used herein is for the purpose of describing the embodiments and is not intended to limit the present disclosure. In this specification, the singular also includes the plural unless specifically stated otherwise in the phrase. As used herein, “comprises” and/or “comprising” does not exclude the presence or addition of one or more other components in addition to the stated components.

Although the first, second, etc. are used to describe various elements or elements, these elements or elements are not limited by these terms, of course. These terms are only used to distinguish one element or component from another. Accordingly, it goes without saying that the first element or component mentioned below may be the second element or component within the spirit of the present disclosure.

Unless otherwise defined, all terms (including technical and scientific terms) used herein may be used with the meaning commonly understood by those of ordinary skill in the art to which this disclosure belongs. In addition, terms defined in a commonly used dictionary are not to be interpreted ideally or excessively unless clearly defined in particular.

In addition, the term “or” is intended to mean an inclusive “or” rather than an exclusive “or.” That is, unless otherwise specified or clear from context, "X employs A or B" is intended to mean one of the natural implicit substitutions. That is, X employs A; X employs B; or when X employs both A and B, "X employs A or B" may apply to either of these cases. It should also be understood that the term “and/or” as used herein refers to and includes all possible combinations of one or more of the listed related items.

In addition, as used herein, the terms “information” and “data” can often be used interchangeably.

The suffixes “module” and “part” for components used in the following description are given or mixed in consideration of only the ease of writing the specification, and do not have distinct meanings or roles by themselves.

Objects and effects of the present disclosure, and technical configurations for achieving them will become clear with reference to the embodiments described below in detail in conjunction with the accompanying drawings. In describing the present disclosure, if it is determined that a detailed description of a well-known function or configuration may unnecessarily obscure the subject matter of the present disclosure, the detailed description thereof will be omitted. In addition, the terms to be described later are terms defined in consideration of functions in the present disclosure, which may vary according to intentions or customs of users and operators.

However, the present disclosure is not limited to the embodiments disclosed below and may be implemented in various different forms. Only the present embodiments are provided so that the present disclosure is complete, and to fully inform those of ordinary skill in the art to which the present disclosure belongs, the scope of the disclosure, and the present disclosure is only defined by the scope of the claims . Therefore, the definition should be made based on the content throughout this specification.

The scope of the steps in the claims of the present disclosure is generated by the functions and features described in each step, and unless the precedence of the order in each step is specified, in the claims The order of description of each step is not affected. For example, in a claim described as a step comprising step A and step B, even if step A is described before step B, the scope of the rights is not limited that step A must precede step B.

1 is a diagram for explaining an example of a blockchain-based agricultural product supply chain management system in which various aspects of the present disclosure can be implemented.

Referring to FIG. 1 , the blockchain-based agricultural product supply chain management system includes a blockchain network 100 , a raw material provider node 110 , an agricultural product investor node 120 , an agricultural product producer node 130 , and an agricultural product consumer node 140 . can do. However, the above-mentioned components are not essential in implementing the blockchain-based agricultural supply chain management system, so the blockchain-based agricultural production supply chain management system may have more or fewer components than the components listed above.

The raw material provider node 110 according to some embodiments of the present disclosure may be a node associated with a user that supplies raw materials required to produce agricultural products. For example, the raw material provider node 110 may be a node related to a user who provides seeds of agricultural products or seedlings of agricultural products. However, the present invention is not limited thereto.

On the other hand, the agricultural product investor node 120 according to some embodiments of the present disclosure may be a node related to a user that provides an investment for the cost required for agricultural production. For example, the agricultural product investor node 120 may be a node related to a user providing facility costs required for agricultural production. However, the present invention is not limited thereto.

On the other hand, the agricultural product producer node 130 according to some embodiments of the present disclosure receives the raw material from the above-described raw material provider node 110, receives the investment from the agricultural product investor node 120, and receives the user who produces agricultural products It may be a related node. For example, the agricultural producer node 130 may be a node associated with a farmer. However, the present invention is not limited thereto.

On the other hand, the agricultural product consumer node 140 according to some embodiments of the present disclosure may be a node associated with a user who purchases agricultural products produced by the user associated with the agricultural product producer node 130 .

Each of the above-described raw material provider node 110 , agricultural product investor node 120 , agricultural product producer node 130 , and agricultural product consumer node 140 may be included in one block chain network 100 .

That is, the blockchain network 100 of the present disclosure includes a raw material provider node 110 , an agricultural product investor node 120 , an agricultural product producer node 130 , and an agricultural product consumer node 140 , and includes a plurality of other nodes. can However, the present invention is not limited thereto.

According to some embodiments of the present disclosure, each of the raw material provider node 110 , the agricultural product investor node 120 , the agricultural product producer node 130 and the agricultural product consumer node 140 is, for example, a mobile phone, a smart phone (smart phone) , laptop computers, personal digital assistants (PDAs), slate PCs, tablet PCs, and ultrabooks. However, the present invention is not limited thereto, and each of the raw material provider node 110 , the agricultural product investor node 120 , the agricultural product producer node 130 , and the agricultural product consumer node 140 is, for example, a microprocessor, a mainframe computer, a digital processor. , portable devices and device controllers, and the like, of any type of computer system or computer device. However, the present invention is not limited thereto.

In the following description, for convenience of explanation, the term 'plural nodes' is a name that refers to each of the raw material provider node 110 , the agricultural product investor node 120 , the agricultural product producer node 130 , and the agricultural product consumer node 140 . use Here, the term 'a plurality of nodes' is intended to briefly describe embodiments and is not intended to limit the present disclosure.

Each of the plurality of nodes according to some embodiments of the present disclosure may include a processor, a communication unit, and a memory. However, since the above-described components are not essential in implementing each of the plurality of nodes, each of the plurality of nodes may have more or fewer components than those listed above. Here, each component may be configured as a separate chip, module, or device, or may be included in one device.

The processor of each of the plurality of nodes may typically control the overall operation of each of the plurality of nodes. The processor processes signals, data, information, etc. input or output through components of each of the plurality of nodes or runs an application program stored in the memory, thereby providing appropriate information or functions to the user associated with each of the plurality of nodes or can be processed

Also, the processor of each of the plurality of nodes may control at least some of the components of each of the plurality of nodes in order to drive an application program stored in the memory. Furthermore, the processor may operate by combining at least two or more of the components included in each of the plurality of nodes in order to drive the application program. Here, the application program stored in the memory may include, for example, a program for generating a smart contract related to an agricultural product supply chain or for generating a transaction. However, the present invention is not limited thereto.

The communication unit of each of the plurality of nodes may include one or more modules that enable communication between the plurality of nodes. In addition, the communication unit may include one or more modules for connecting each of the plurality of nodes to one or more networks.

The memory of each of the plurality of nodes stores data supporting various functions of each of the plurality of nodes. The memory may store a plurality of application programs (or applications) driven in each of the plurality of nodes, data for operation of each of the plurality of nodes, and instructions. 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 each of the plurality of nodes from the time of shipment for the basic function of each of the plurality of nodes. Meanwhile, the application program may be stored in a memory, installed on each of the plurality of nodes, and driven to perform an operation (or function) of each of the plurality of nodes by a processor of each of the plurality of nodes.

According to some embodiments of the present disclosure, each of the plurality of nodes may generate a smart contract or transaction related to agricultural supply chain management, and record the generated smart contract or transaction in the blockchain network 100 . However, the present invention is not limited thereto.

Hereinafter, a description of the steps related to the agricultural supply chain management performed by each of the plurality of nodes will be described later with reference to FIG. 2 .

In some embodiments of the present disclosure, the block chain network 100 may mean a plurality of nodes operating based on block chain technology. That is, the blockchain network 100 may include a plurality of nodes. Here, the block chain technology is a distributed storage technology that stores data to be managed in a plurality of nodes constituting the block chain network using a storage structure in which blocks are connected in a chain form.

The block chain network 100 transmits the transaction transmitted from the raw material provider node 110, the agricultural product investor node 120, the agricultural product producer node 130 and/or the agricultural product consumer node 140 in a block form based on a predetermined consensus algorithm. can be saved as Data stored in block form may be shared by a plurality of nodes constituting the blockchain network 100 .

In some exemplary embodiments of the present disclosure, nodes in the blockchain network 100 may operate by a blockchain core package according to a hierarchical structure. The hierarchical structure is: a data layer that defines the structure of data handled in the block chain network 100 and manages data, performs mining to verify the validity of blocks and creates blocks, and fees paid to miners in the mining process Consensus layer in charge of processing, execution layer that processes and executes smart contract, common layer that implements and manages P2P network protocol, hash function, digital signature, encoding, and common storage, and various applications are created, processed and managed It may contain an application layer.

The blockchain network 100 includes a plurality of nodes (the raw material provider node 110, the agricultural product investor node 120, the agricultural product producer node 130 and the agricultural product consumer node 140 included in the block chain network 100) can do. In addition, a plurality of nodes included in the blockchain network 100 may receive transactions from other nodes. In this case, each of the plurality of nodes included in the blockchain network 100 may verify a transaction through a consensus algorithm and generate a block. In addition, each of the plurality of nodes may record a transaction in the generated block.

Each of the raw material provider node 110 , the agricultural product investor node 120 , the agricultural product producer node 130 , and the agricultural product consumer node 140 included in the block chain network 100 operates as a node constituting the block chain network 100 . You may. In this example, each of the raw material provider node 110, the agricultural product investor node 120, the agricultural product producer node 130 and the agricultural product consumer node 140 included in the blockchain network 100 has a wallet function, a miner ( miner) function and at least one function of storing full block chain data can be implemented. For example, when each of the raw material provider node 110 , the agricultural product investor node 120 , the agricultural product producer node 130 , and the agricultural product consumer node 140 included in the blockchain network 100 includes only a wallet function, a transaction and a node that performs validation (eg, a Simplified Payment Verification (SPV) node).

The term “node” used in the present disclosure refers to at least one of the raw material provider node 110 , the agricultural product investor node 120 , the agricultural product producer node 130 , and the agricultural product consumer node 140 included in the blockchain network 100 . It may be any type of computing device such as a server or a terminal capable of exchanging data with each other. However, the present invention is not limited thereto, and a node may be any device capable of exchanging data between a plurality of nodes.

According to some embodiments of the present disclosure, a plurality of nodes included in the blockchain network 100 may include a Full Block Chain Node and a Lightweight Node.

A full blockchain node can contain all block information from the first block of the blockchain to the currently newly created block. In addition, a full blockchain node collects and stores all blockchain information, and can perform verification on the received block to add a new block.

The lightweight node does not have the original source of all block information, and may include only header information. In order for the lightweight node to verify the transaction, SPV (Simple Payment Verify) can be performed.

For example, a lightweight node can request block information from a full block chain node, and verify transaction authentication through Merkle Root.

However, for convenience of explanation, a plurality of nodes included in the block chain network 100 may be described below assuming that they are full block chain nodes.

The term “block” used in the present disclosure is a unit stored in a block chain network, and may form a block chain as it is connected with adjacent blocks. The information related to the raw material provider node 110, the agricultural product investor node 120 information, the agricultural product producer node 130 information, the agricultural product consumer node 140 information, and the block chain network 100 information is a transaction. When issued to a blockchain network, the corresponding transaction can be included in a block and recorded on the blockchain network. According to the setting of the blockchain network, the right to read, the right to agree, and/or the right to verify the data stored in the block can be determined.

A plurality of nodes included in the blockchain network 100 may share and store the generated transaction and/or smart contract through the network. In addition, a plurality of nodes can perform a function of recording a transaction in a block when verification of a transaction and/or a smart contract is completed through the consensus algorithm of the block chain technology.

The blockchain network 100 may include a public blockchain network in which arbitrary nodes can perform a consensus operation or a private blockchain network in which only predetermined nodes can perform a consensus operation, depending on the implementation type. .

According to some embodiments of the present disclosure, the consensus algorithm performed in the blockchain network 100 is: a Proof of Work (PoW) algorithm, a Proof of Stake (PoS) algorithm, a Delegated Proof of Stake (DPoS) algorithm, and a Practical (PBFT) algorithm. Byzantine Fault Tolerance (DBFT) Algorithm, Delegated Byzantine Fault Tolerance (DBFT) Algorithm, Redundant Byzantine Fault Tolerance (RBFT) Algorithm, Sieve Algorithm, Tendermint Algorithm, Paxos Algorithm, Raft Algorithm, Proof of Authority (PoA) Algorithm and/or Proof of (PoET) Algorithm Elapsed Time) algorithm may be included.

Meanwhile, the block chain network structure according to some embodiments of the present disclosure may be a public type or a private type. In the case of a public blockchain network, since verification work must be performed on all nodes to verify a transaction, there are disadvantages of inefficiency in terms of consensus time, transaction processing speed, and efficiency of use of computing resources. There may be advantages in transparency and integrity of the stored data because it is possible. In addition, in the case of a private (or consortium) blockchain, since the operating entity is clear, it has the advantage of being efficient in terms of consensus time, transaction processing speed, and efficiency of use of computing resources, but transparency of the transaction processing process and results There may be advantages in terms of

The consensus algorithm in some embodiments of the present disclosure may preferably be a private or consortium type blockchain network in order to improve user experience through efficient use of computing resources and increase in transaction processing speed, but is not limited thereto. Depending on the implementation aspect, if you want to further emphasize the transparency of a transaction or smart contract, a public type may be used as a consensus algorithm.

A smart contract according to embodiments of the present disclosure may be written in a digital language for performing agricultural supply chain management and executed on any computing device. That is, when the code and/or function included in the smart contract is executed, any form of agricultural supply chain management (eg, production, investment, and sale of agricultural products, etc.) according to embodiments of the present disclosure may be performed. .

The smart contract according to the embodiments of the present disclosure is at least one of a method of creating a new smart contract, a method of executing a function on a specific smart contract, or a method of transmitting a coin operable in the blockchain network 100 can be executed by In addition, smart contracts can be executed by transactions generated by externally owned accounts or by other contracts.

Coins in the present specification may refer to any type of cryptocurrency that can be operated on the blockchain network 100 .

A smart contract for performing agricultural supply chain management according to embodiments of the present disclosure, for example, to prevent malicious code such as infinite repetition and to preserve the integrity of data related to agricultural supply chain management, a specific execution cost when executing a transaction Payment may also be stipulated. Execution cost herein may mean any type of coin tradable in the blockchain network 100 or a separate other type of medium (eg, gas, etc.) that can be linked with the coin. As a non-limiting example, the basic execution cost of a transaction may be set to 21,000 gas. For example, such an execution cost may include the cost of processing the elliptic curve digital signature algorithm (ECDSA) for the account address of the issuer of the transaction, the cost of storage for storing the transaction, and the cost of network bandwidth. In this way, if a smart contract is defined to pay a specific cost when executing, malicious attacks such as infinite execution such as intentional DDoS attacks can be prevented.

A call between smart contracts to perform agricultural supply chain management according to embodiments of the present disclosure may be implemented using a structure called a message. For example, such a message may be generated by the contract account (CA), and may be delivered to another contract when a function is called. In one embodiment, since the message in this case is generated and processed inside the blockchain network 100, unlike a transaction generated in an externally owned account, a separate execution cost such as gas may not be generated.

In implementing the agricultural product supply chain management according to the embodiments of the present disclosure, when synchronizing through the block chain by including the function of the smart contract in the transaction in the form of a compiled code, the information included in the transaction is used as an input of the function A smart contract can be implemented by executing a function expressed in code and storing the result in a separate state.

When the function content and function input are shared by a smart contract shared in the blockchain network 100, data integrity can be guaranteed even if the function result is not shared separately.

In a further embodiment, the computing devices constituting the blockchain network 100 of the present disclosure for performing agricultural supply chain management are a transaction storage database that changes the state of a smart contract and a smart contract that keeps the latest state of the smart contract It may also include a contract database. In this case, the smart contract for agricultural supply chain management in the present disclosure can be defined as an application that can change the state on the blockchain network 100 (ie, agricultural supply chain management application), and the smart contract The state may be defined as a variable used by the corresponding application (ie, the item trading application), and the input value for changing it is the raw material provider node 110 , the agricultural product investor node 120 , the agricultural product producer node 130 and It may be included in a transaction issued from at least one of the agricultural products consumer node 140 .

In a further embodiment, the database storing the state of the smart contract may be combined with the database storing the transaction to achieve a high compression ratio. In addition, in order to achieve distributed consensus of the database that stores the state of the smart contract and the low dependency of the smart contract, it can be operated separately from the database that stores the transaction.

Various embodiments described herein may be implemented in, for example, a computer or similar device-readable recording medium and storage medium using software, hardware, or a combination thereof.

According to the hardware implementation, the embodiments described herein include ASICs (application specific integrated circuits), DSPs (digital signal processors), DSPDs (digital signal processing devices), PLDs (programmable logic devices), FPGAs (field programmable gate arrays, It may be implemented using at least one of processors, controllers, micro-controllers, microprocessors, and other electrical units for performing functions. The described embodiments may be implemented by the processor itself of each of the components included in the blockchain-based agricultural supply chain management system.

According to the software implementation, embodiments such as the procedures and functions described in this specification may be implemented as separate software modules. Each of the software modules may perform one or more functions and operations described herein. The software code may be implemented as a software application written in a suitable programming language. The software code may be executed by the processor of each of the components included in the blockchain-based agricultural supply chain management system.

2 is a flowchart for explaining an example of a blockchain-based agricultural product supply chain management method according to some embodiments of the present disclosure.

Referring to FIG. 2 , at least one raw material provider node 110 may record at least one first smart contract including raw material provision information in the block chain network 100 ( S110 ).

Specifically, the at least one raw material provider node 110 is a first smart including information on raw materials provided by the at least one raw material provider node 110, information on the raw material price, and payment conditions for the raw material price. You can create a contract.

And, the at least one raw material provider node 110 transmits the first smart contract to at least one node included in the blockchain network 100 so that when the first smart contract is verified through a consensus algorithm, the blockchain network A first block may be generated in each of a plurality of nodes included in 100, and the first smart contract may be caused to be recorded in the first block.

At least one agricultural product investor node 120 may record at least one second smart contract including agricultural product investment information in the block chain network 100 (S120).

Specifically, the at least one agricultural product investor node 120 may generate the second smart contract including information on the agricultural products to be invested and payment conditions of the proceeds for the agricultural products investment.

And, the at least one agricultural investor node 120 transmits the second smart contract to at least one node included in the block chain network 100 so that when the second smart contract is verified through a consensus algorithm, the block chain network A second block may be generated in each of the plurality of nodes included in ( 100 ), and the second smart contract may be caused to be recorded in the second block.

When the at least one agricultural producer node 130 participates in the first smart contract and the second smart contract, a plurality of transactions including information on each of a plurality of agricultural production processes may be recorded in the block chain network (S130). ).

Specifically, the at least one agricultural producer node 130 may recognize an identification code (eg, QR-Code) attached to agricultural products being produced for each of a plurality of agricultural production processes. For example, the at least one agricultural producer node 130 may recognize the identification code attached to the agricultural product by using the camera of the agricultural production facility or the camera of the terminal.

Meanwhile, the at least one agricultural producer node 130 may generate a specific transaction including the identification code and information on the specific production process for which the identification code is recognized among the plurality of agricultural production processes. And, the at least one agricultural producer node 130 transmits the specific transaction to at least one node included in the block chain network 100 so that when the specific transaction is verified through a consensus algorithm, the block chain network 100 A specific block may be generated in each of a plurality of nodes included in , and the specific transaction may be recorded in the specific block.

That is, at least one agricultural product producer node 130 may generate a transaction related to the production of agricultural products in each production step of the agricultural product, and record the generated transaction in the block chain network 100 .

Therefore, the agricultural product supply chain management system of the present disclosure can ensure the transparency of the production process of agricultural products. In addition, the consumer node 140 related to the user purchasing the agricultural product can easily grasp the quality of the agricultural product by inquiring the production process of the agricultural product through the transaction recorded in the block chain network 100 .

According to some additional embodiments of the present disclosure, the at least one agricultural producer node 130 is a license (License) related to agricultural production permission in the blockchain network 100 before the above-described steps (S110 to S130) are performed. ) can be recorded.

In addition, a specific agricultural product producer node for which a license related to agricultural production permission is not recorded in the blockchain network 100 may not participate in the agricultural product supply chain management system of the present disclosure.

That is, in the agricultural product supply chain management system of the present disclosure, only users who have received permission related to agricultural production can participate as the agricultural product producer node 130 . However, the present invention is not limited thereto.

According to some other additional embodiments of the present disclosure, a specific node included in the block chain network 100 uses information about the agricultural production process recorded in the block chain network 100 to the specific agricultural product producer node 130 . Score can be calculated. In addition, the specific node may map the calculated score with the license of the specific agricultural product producer node 130 and record it in the blockchain network.

Accordingly, when purchasing agricultural products, consumers can determine whether to purchase agricultural products produced according to various criteria (eg, whether or not to license and a score).

On the other hand, the at least one agricultural producer node 130 may record the third smart contract related to the sale of the produced agricultural products in the block chain network (S140).

After the third smart contract is recorded in the blockchain network 100 , at least one consumer node 140 may participate in the third smart contract.

When the at least one consumer node 140 participates in the third smart contract, it is possible to obtain quality information on the produced agricultural products by inquiring a plurality of transactions including information on each of the agricultural production processes. In addition, at least one consumer node 140 may determine whether to purchase the agricultural product.

As the at least one consumer node 140 determines to purchase the agricultural product, when the purchase of the agricultural product is completed, the raw material price is transferred to the at least one raw material provider node based on the first smart contract described above in step S110 may be paid (S150).

Specifically, when the payment condition of the raw material price included in the first smart contract is satisfied, the raw material price may be paid to the at least one raw material provider node 110 . For example, when 'sale of agricultural products', which is a 'condition for payment of raw material price', is completed, the raw material price may be paid to at least one raw material provider node 110 . However, the present invention is not limited thereto.

When the raw material price is paid to the at least one raw material provider node 110, the proceeds for the agricultural product investment are paid to the at least one agricultural product investor node 120 based on the second smart contract described above in step S120 It can be (S160).

Specifically, when the payment condition of the profit for the agricultural product investment included in the second smart contract is satisfied, the profit may be paid to the at least one agricultural product investor node 120 . For example, when the sale of agricultural products is completed as much as the 'pre-set sales quantity of agricultural products', which is the 'payment condition of the proceeds', the profits may be paid to at least one agricultural product investor node 120 . However, the present invention is not limited thereto.

When the proceeds for the agricultural product investment are paid to the at least one agricultural product investor node 120, the remaining amount excluding the raw material price and the proceeds from the agricultural product sales price generated as the at least one consumer node 140 completes the purchase of the agricultural product It may be paid to the agricultural product producer node 130 . That is, the raw material price is a part of the agricultural product sales price, and the profit for the agricultural product investment may be a part of the remainder except for the raw material price from the agricultural product sales price. However, the present invention is not limited thereto.

According to some embodiments of the present disclosure, the agricultural product supply chain management system may be configured through a smart contract or transaction that each participant (node) of the agricultural product management system records in the blockchain network 100 .

In this case, since various information related to agricultural product management is recorded in the block chain network 100, transparency and integrity for agricultural product management can be guaranteed.

In addition, since the production process of agricultural products is recorded in the blockchain network 100 in the form of a transaction, consumers can easily understand the quality of agricultural products.

In addition, since information related to the sale of agricultural products is made through a smart contract, concerns such as non-payment of payment can be resolved.

3 depicts a simplified, general schematic diagram of an exemplary computing environment in which embodiments of the present disclosure may be implemented.

Although the present disclosure has been described above generally in the context of computer-executable instructions that may be executed on one or more computers, those skilled in the art will appreciate that the present disclosure may be implemented in combination with other program modules and/or in a combination of hardware and software. will be.

Generally, modules herein include routines, procedures, programs, components, data structures, etc. that perform particular tasks or implement particular abstract data types. In addition, those skilled in the art will appreciate that the methods of the present disclosure can be applied to single-processor or multiprocessor computer systems, minicomputers, mainframe computers as well as personal computers, handheld computing devices, microprocessor-based or programmable consumer electronics, etc. (each of which is It will be appreciated that other computer system configurations may be implemented, including those that may operate in connection with one or more associated devices.

The described embodiments of the present disclosure may also be practiced in distributed computing environments where certain tasks are performed by remote processing devices that are linked through a communications network. In a distributed computing environment, program modules may be located in both local and remote memory storage devices.

Computers typically include a variety of computer-readable media. Any medium accessible by a computer can be a computer-readable medium, and such computer-readable media includes volatile and nonvolatile media, transitory and non-transitory media, removable and non-transitory media. including removable media. By way of example, and not limitation, computer-readable media may include computer-readable storage media and computer-readable transmission media.

Computer readable storage media includes volatile and nonvolatile media, temporary and non-transitory media, removable and non-removable media implemented in any method or technology for storage of information such as computer readable instructions, data structures, program modules or other data. includes media. A computer-readable storage medium may be RAM, ROM, EEPROM, flash memory or other memory technology, CD-ROM, digital video disk (DVD) or other optical disk storage device, magnetic cassette, magnetic tape, magnetic disk storage device, or other magnetic storage device. device, or any other medium that can be accessed by a computer and used to store the desired information.

A computer readable transmission medium typically embodies computer readable instructions, data structures, program modules or other data in a modulated data signal, such as a carrier wave or other transport mechanism, and the like. Includes all information delivery media. The term modulated data signal means a signal in which one or more of the characteristics of the signal is set or changed so as to encode information in the signal. By way of example, and not limitation, computer-readable transmission media includes wired media such as a wired network or direct-wired connection, and wireless media such as acoustic, RF, infrared, and other wireless media. Combinations of any of the above are also intended to be included within the scope of computer-readable transmission media.

An example environment 1100 implementing various aspects of the disclosure is shown including a computer 1102 , the computer 1102 including a processing unit 1104 , a system memory 1106 , and a system bus 1108 . do. A system bus 1108 couples system components, including but not limited to system memory 1106 , to the processing device 1104 . The processing device 1104 may be any of a variety of commercially available processors. Dual processor and other multiprocessor architectures may also be used as processing unit 1104 .

The system bus 1108 may be any of several types of bus structures that may be further interconnected to a memory bus, a peripheral bus, and a local bus using any of a variety of commercial bus architectures. System memory 1106 includes read only memory (ROM) 1110 and random access memory (RAM) 1112 . A basic input/output system (BIOS) is stored in non-volatile memory 1110, such as ROM, EPROM, EEPROM, etc., the BIOS is the basic input/output system (BIOS) that helps transfer information between components within computer 1102, such as during startup. contains routines. RAM 1112 may also include high-speed RAM, such as static RAM, for caching data.

The computer 1102 may also include an internal hard disk drive (HDD) 1114 (eg, EIDE, SATA) - this internal hard disk drive 1114 may also be configured for external use within a suitable chassis (not shown). Yes—a magnetic floppy disk drive (FDD) 1116 (eg, for reading from or writing to removable diskette 1118), and an optical disk drive 1120 (eg, a CD-ROM) for reading from, or writing to, disk 1122, or other high capacity optical media, such as DVD. The hard disk drive 1114 , the magnetic disk drive 1116 , and the optical disk drive 1120 are connected to the system bus 1108 by the hard disk drive interface 1124 , the magnetic disk drive interface 1126 , and the optical drive interface 1128 , respectively. ) can be connected to Interface 1124 for external drive implementation includes, for example, at least one or both of Universal Serial Bus (USB) and IEEE 1394 interface technologies.

These drives and their associated computer-readable media provide non-volatile storage of data, data structures, computer-executable instructions, and the like. In the case of computer 1102, drives and media correspond to storing any data in a suitable digital format. Although the description of computer-readable storage media above refers to HDDs, removable magnetic disks, and removable optical media such as CDs or DVDs, those skilled in the art will use zip drives, magnetic cassettes, flash memory cards, cartridges, It will be appreciated that other tangible computer-readable storage media and the like may also be used in the exemplary operating environment and any such media may include computer-executable instructions for performing the methods of the present disclosure. .

A number of program modules may be stored in the drive and RAM 1112 , including an operating system 1130 , one or more application programs 1132 , other program modules 1134 , and program data 1136 . All or portions of the operating system, applications, modules, and/or data may also be cached in RAM 1112 . It will be appreciated that the present disclosure may be implemented in various commercially available operating systems or combinations of operating systems.

A user may enter commands and information into the computer 1102 via one or more wired/wireless input devices, for example, a pointing device such as a keyboard 1138 and a mouse 1140 . Other input devices (not shown) may include a microphone, IR remote control, joystick, game pad, stylus pen, touch screen, and the like. Although these and other input devices are connected to the processing unit 1104 through an input device interface 1142 that is often connected to the system bus 1108, parallel ports, IEEE 1394 serial ports, game ports, USB ports, IR interfaces, and the like may be connected by other interfaces.

A monitor 1144 or other type of display device is also coupled to the system bus 1108 via an interface, such as a video adapter 1146 . In addition to the monitor 1144, the computer typically includes other peripheral output devices (not shown), such as speakers, printers, and the like.

Computer 1102 may operate in a networked environment using logical connections to one or more remote computers, such as remote computer(s) 1148 via wired and/or wireless communications. Remote computer(s) 1148 may be workstations, server computers, routers, personal computers, portable computers, microprocessor-based entertainment devices, peer devices, or other common network nodes, and are generally Although including many or all of the components described, only memory storage device 1150 is shown for simplicity. The logical connections shown include wired/wireless connections to a local area network (LAN) 1152 and/or a larger network, eg, a wide area network (WAN) 1154 . Such LAN and WAN networking environments are common in offices and companies, and facilitate enterprise-wide computer networks, such as intranets, all of which can be connected to a worldwide computer network, for example, the Internet.

When used in a LAN networking environment, the computer 1102 is coupled to the local network 1152 through a wired and/or wireless communication network interface or adapter 1156 . Adapter 1156 may facilitate wired or wireless communication to LAN 1152 , which LAN 1152 also includes a wireless access point installed therein for communicating with wireless adapter 1156 . When used in a WAN networking environment, the computer 1102 may include a modem 1158 , connected to a communication server on the WAN 1154 , or otherwise establishing communications over the WAN 1154 , such as over the Internet. have the means A modem 1158 , which may be internal or external and a wired or wireless device, is coupled to the system bus 1108 via a serial port interface 1142 . In a networked environment, program modules described for computer 1102 , or portions thereof, may be stored in remote memory/storage device 1150 . It will be appreciated that the network connections shown are exemplary and other means of establishing a communication link between the computers may be used.

The computer 1102 may be associated with any wireless device or object that is deployed and operates in wireless communication, for example, a printer, scanner, desktop and/or portable computer, portable data assistant (PDA), communication satellite, wireless detectable tag. It operates to communicate with any device or place, and phone. This includes at least Wi-Fi and Bluetooth wireless technologies. Accordingly, the communication may be a predefined structure as in a conventional network or may simply be an ad hoc communication between at least two devices.

Wi-Fi (Wireless Fidelity) makes it possible to connect to the Internet, etc. without a wired connection. Wi-Fi is a wireless technology such as cell phones that allows these devices, eg, computers, to transmit and receive data indoors and outdoors, ie anywhere within range of a base station. Wi-Fi networks use a radio technology called IEEE 802.11 (a, b, g, etc.) to provide secure, reliable, and high-speed wireless connections. Wi-Fi can be used to connect computers to each other, to the Internet, and to wired networks (using IEEE 802.3 or Ethernet). Wi-Fi networks may operate in unlicensed 2.4 and 5 GHz radio bands, for example, at 11 Mbps (802.11a) or 54 Mbps (802.11b) data rates, or in products that include both bands (dual band). there is.

Those of ordinary skill in the art of the present disclosure will recognize that the various illustrative logical blocks, modules, processors, means, circuits, and algorithm steps described in connection with the embodiments disclosed herein include electronic hardware, (convenience For this purpose, it will be understood that it may be implemented by various forms of program or design code (referred to herein as "software") or a combination of both. To clearly illustrate this interchangeability of hardware and software, various illustrative components, blocks, modules, circuits, and steps have been described above generally in terms of their functionality. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the overall system. A person skilled in the art of the present disclosure may implement the described functionality in various ways for each specific application, but such implementation decisions should not be interpreted as a departure from the scope of the present disclosure.

The various embodiments presented herein may be implemented as methods, apparatus, or articles of manufacture using standard programming and/or engineering techniques. The term “article of manufacture” includes a computer program, carrier, or media accessible from any computer-readable device. For example, computer-readable storage media include magnetic storage devices (eg, hard disks, floppy disks, magnetic strips, etc.), optical disks (eg, CDs, DVDs, etc.), smart cards, and flash drives. memory devices (eg, EEPROMs, cards, sticks, key drives, etc.). The term “machine-readable medium” includes, but is not limited to, wireless channels and various other media that can store, hold, and/or convey instruction(s) and/or data.

It is understood that the specific order or hierarchy of steps in the presented processes is an example of exemplary approaches. Based on design priorities, it is understood that the specific order or hierarchy of steps in the processes may be rearranged within the scope of the present disclosure. The appended method claims present elements of the various steps in a sample order, but are not meant to be limited to the specific order or hierarchy presented.

The description of the presented embodiments is provided to enable any person skilled in the art to make or use the present disclosure. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the scope of the present disclosure. Thus, the present disclosure is not intended to be limited to the embodiments presented herein, but is to be construed in the widest scope consistent with the principles and novel features presented herein.

Claims (7)

In the blockchain-based agricultural supply chain management method,
at least one raw material provider node recording at least one first smart contract including raw material provision information in a block chain network;
at least one agricultural product investor node recording at least one second smart contract including agricultural product investment information in the block chain network;
When at least one agricultural producer node participates in the first smart contract and the second smart contract, recording a plurality of transactions including information on each of a plurality of agricultural production processes in a block chain network;
recording, by the at least one agricultural producer node, a third smart contract related to the sale of the produced agricultural products in the block chain network;
When at least one consumer node participates in the third smart contract, a plurality of transactions including information on each of the agricultural production processes are inquired to obtain quality information on the produced agricultural products, and whether the agricultural products are purchased determining;
when the at least one consumer node completes the purchase of the agricultural product, a raw material price is paid to the at least one raw material provider node based on the first smart contract;
When the raw material price is paid to the at least one raw material provider node, based on the second smart contract, the step of paying the proceeds for the agricultural product investment to the at least one agricultural product investor node; and
When the profit for the agricultural product investment is paid to the at least one agricultural product investor node, the remaining amount excluding the raw material price and the proceeds from the agricultural product sales price generated as the at least one consumer node completes the purchase of the agricultural product The step of being paid to the agricultural producer node;
containing,
A blockchain-based agricultural supply chain management method.
The method of claim 1,
The blockchain network is
comprising the at least one raw material provider node, at least one agricultural investor node and the at least one agricultural producer node,
A blockchain-based agricultural supply chain management method.
The method of claim 1,
The step of recording, by the at least one raw material provider node, at least one first smart contract including raw material provision information, in a block chain network,
generating the first smart contract including information on raw materials provided by the at least one raw material provider node, information on the raw material price, and payment conditions for the raw material price; and
By transmitting the first smart contract to at least one node included in the blockchain network, when the first smart contract is verified through a consensus algorithm, a first block in each of a plurality of nodes included in the blockchain network generating and causing the first smart contract to be recorded in the first block;
containing,
A blockchain-based agricultural supply chain management method.
4. The method of claim 3,
When the at least one consumer node completes the purchase of the agricultural product, the step of paying for the raw material to the at least one raw material provider node based on the first smart contract comprises:
when the payment condition of the raw material price included in the first smart contract is satisfied, the raw material price is paid to the at least one raw material provider node;
containing,
A blockchain-based agricultural supply chain management method.
The method of claim 1,
The step of recording, by the at least one agricultural product investor node, at least one second smart contract including agricultural product investment information, in the block chain network,
generating the second smart contract including information on agricultural products invested by the at least one agricultural product investor node and payment conditions of the proceeds for the agricultural product investment; and
By transmitting the second smart contract to at least one node included in the blockchain network, when the second smart contract is verified through a consensus algorithm, a second block in each of the plurality of nodes included in the blockchain network generating and causing the second smart contract to be recorded in the second block;
containing,
A blockchain-based agricultural supply chain management method.
6. The method of claim 5,
When the raw material price is paid to the at least one raw material provider node, based on the second smart contract, the step of paying the proceeds for the agricultural product investment to the at least one agricultural product investor node comprises:
When the payment condition of the profit for the agricultural product investment included in the second smart contract is satisfied, the step of paying the proceeds to the at least one agricultural product investor node;
containing,
A blockchain-based agricultural supply chain management method.
The method of claim 1,
When at least one agricultural producer node participates in the first smart contract and the second smart contract, the at least one agricultural producer node performs a plurality of transactions including information on each of a plurality of agricultural production processes in a block chain network The steps to record in
Recognizing, by the at least one agricultural producer node, an identification code attached to agricultural products being produced for each of the plurality of agricultural production processes;
generating, by the at least one agricultural producer node, information on a specific production process in which the identification code is recognized among the plurality of agricultural production processes and a specific transaction including the identification code; and
By transmitting the specific transaction to at least one node included in the blockchain network, when the specific transaction is verified through a consensus algorithm, a specific block is generated in each of a plurality of nodes included in the blockchain network, and the causing the specific transaction to be written to a specific block;
containing,
A blockchain-based agricultural supply chain management method.

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