KR102484554B1 - server that provides the metaverse platform - Google Patents

Abstract

The present invention relates to a metaverse, and relates to a server which provides a metaverse platform. The present invention also relates to a Non-Fungible Token (NFT). In addition, the present invention relates to a method and server for providing art exhibition and trading services within the metaverse. The server includes a transceiver and a processor.

Description

Server that provides the metaverse platform {server that provides the metaverse platform}

The present invention relates to a metaverse, and relates to a server providing a metaverse platform.

The present invention also relates to a Non-Fungible Token (NFT).

In addition, the present invention relates to a method and server for providing art exhibition and trading services within the metaverse.

The metaverse is a term that refers to a three-dimensional virtual world in which social, economic, and cultural activities are performed as in the real world. Metaverse is gradually attracting attention due to the development of information and communication technology following the commercialization of 5G and the acceleration of the non-face-to-face trend following the COVID-19 pandemic.

Reflecting the development of metaverse-related technologies, especially information and communication technology and block chain technology, attempts are being made to provide art exhibition and trading services through metaverse.

Japanese Laid-open Patent Publication 2008-217255 A (2008.09.18) Japanese Laid-open Patent Publication 2019-087162 A (2019.06.06) Japanese Laid-open Patent Publication 2005-514682 A (2005.05.19)

Various embodiments of the present invention provide a method and server for providing art exhibition and sale services within the metaverse.

According to one embodiment of the present invention, there is provided a method for a server to provide art exhibition and sale services within a metaverse. The method includes the steps of receiving, from a first user device of a first customer, a metaverse artwork image for display in a virtual image space in the metaverse, a first based on blockchain technology. Transmitting NFT creation request information for generating a non-fungible token (NFT) representing the copyright of the metaverse artwork image to a plurality of nodes in the blockchain platform, the first customer A smart contract request requesting a smart contract of the NFT generated by the plurality of nodes based on the NFT generation request information from the first user device of Receiving information, requesting creation of a smart contract account for the conclusion of the smart contract from the plurality of nodes based on the smart contract request information, the virtual image Placing the metaverse art work image and the smart contract request information on a first area of an inner wall of a virtual art exhibition hall in space, controlled by a second user device of a second customer, wherein the Receiving acceptance information for the smart contract request information from a first avatar of the second customer located in the metaverse, the acceptance from the second user device to the plurality of nodes The virtual image space Controlling so that smart contract execution information indicating that the smart contract has been concluded is displayed in my second area, wherein the plurality of nodes are external users using the first blockchain platform It includes a device or an external server, and the smart contract request information may be information requesting to trade the NFT with a predetermined quantity of cryptocurrency used in the second blockchain platform.

In one embodiment, the quantity of the cryptocurrency to be transacted with the NFT, indicated by the smart contract request information, is the predetermined quantity at the initial time when the smart contract request information is generated, and from the initial time Based on the elapsed minutes of a, it is determined as b * (the predetermined quantity), where a is a natural number and b can be a real number greater than or equal to 0 and less than 1.

In one embodiment, the quantity of the cryptocurrency to be transacted with the NFT, indicated by the smart contract request information, is the predetermined quantity at the initial time when the smart contract request information is generated, and from the initial time Based on the elapse of c hours, {(total number of avatars that accessed the metaverse art work image) / (c hours)} and [(total number of avatars displayed in the virtual art gallery during the previous c hours) Total number of avatars accessing art work images) / {(c time)*(total number of art work images)}], where c may be a natural number.

In one embodiment, based on the fact that the second avatar of a specific customer is located within a preset critical distance from the specific artwork image displayed in the virtual art exhibition hall, the second avatar approaches the specific artwork image. can be determined as one.

In one embodiment, {(total number of avatars accessing the metaverse artwork image) / (c time)} is [(the avatar accessing the total artwork images displayed in the virtual art gallery during the previous c time period) of the cryptocurrency to be transacted with the NFT, at the time when the c time elapses from the initial time point, based on greater than {(c time) * (the total number of art work images)}] The quantity is determined by d * (the predetermined quantity), and d may be a real number greater than 1.

In one embodiment, {(total number of avatars accessing the metaverse artwork image) / (c time)} is [(the avatar accessing the total artwork images displayed in the virtual art gallery during the previous c time period) of the cryptocurrency to be transacted with the NFT, at the time when the c time elapses from the initial time point, based on less than {(c time) * (the total number of art work images)}] The quantity is determined by e * (the predetermined quantity), and e may be a real number greater than 0 and less than 1.

In one embodiment, based on the conclusion of the smart contract, the ownership of the image of the metaverse artwork is transferred from the first customer to the second customer in the metaverse, and the smart contract Based on the contract and the ownership of the metaverse art work image is transferred to the second customer in the metaverse, the metaverse art work image is a private room of the second customer in the metaverse. It can be controlled to be displayed within.

In one embodiment, based on the conclusion of the smart contract, the ownership of the image of the metaverse artwork is transferred from the first customer to the second customer in the metaverse, and the smart contract Based on the conclusion that the ownership of the metaverse artwork image is transferred to the second customer in the metaverse, the first avatar of the second customer in the metaverse recalls the metaverse artwork image. It can be controlled to enable transport within the virtual image space.

In one embodiment, the quantity of the cryptocurrency to be transacted with the NFT, indicated by the smart contract request information, is the predetermined quantity at the initial time when the smart contract request information is generated, and from the initial time Based on the elapse of c hours, {(total number of avatars that accessed the metaverse art work image) / (c hours)} and [(total number of avatars displayed in the virtual art gallery during the previous c hours) The total number of avatars accessing art work images) / {(c time)*(total number of art work images)}] Based on being located within a predetermined critical distance from the specific artwork image displayed on, it is determined that the second avatar has approached the specific artwork image, {(Avatar approaching the metaverse artwork image ) / (c time)} is [(the total number of avatars that have accessed the total art work images displayed in the virtual art exhibition hall during the previous c time) / {(c time) * (the total art work images The number of cryptocurrencies to be transacted with the NFT is determined by d * (the predetermined quantity) at the time when c time elapses from the initial time point, based on greater than the number of )}], where d is 1 It is a bigger mistake, and {(total number of avatars that accessed the metaverse art work image) / (c time)} is [(avatar that accessed total art work images displayed in the virtual art exhibition hall during the previous c time period) of the cryptocurrency to be transacted with the NFT, at the time when the c time elapses from the initial time point, based on less than {(c time) * (the total number of art work images)}] The quantity is determined by e * (the predetermined quantity), where e is a real number greater than 0 and less than 1, and based on the conclusion of the smart contract, the ownership of the image of the metaverse artwork in the metaverse. Remind this In the metaverse, based on the transfer from the first customer to the second customer, and the smart contract being concluded, the ownership of the metaverse artwork image in the metaverse is transferred to the second customer. The first avatar of the second customer may be controlled to be able to carry the metaverse artwork image within the virtual image space.

According to one embodiment of the present invention, a server providing art exhibition and sale services within the metaverse is provided. The server includes a transceiver and a processor, wherein the processor includes a meta for display in a virtual image space in the metaverse from a first user device of a first customer. Controls the transceiver to receive a bus art work image, and a plurality of nodes in the first blockchain platform based on blockchain technology, NFT representing the copyright of the metaverse art work image ( control the transceiver to transmit NFT creation request information for generating a non-fungible token), and generated by the plurality of nodes based on the NFT creation request information from the first user device of the first customer Controls the transceiver to receive smart contract request information requesting a smart contract of the NFT, and based on the smart contract request information, the plurality of Control the transceiver to request creation of a smart contract account for the conclusion of the smart contract to nodes, and place the metaverse art work on the first area of the inner wall of the virtual art exhibition hall in the virtual image space. Place an image and the smart contract request information, and from a first avatar of the second customer, controlled by a second user device of the second customer, located in the metaverse, the smart contract Controls the transmission/reception unit to receive acceptance information for the track request information, and transmits a transaction ID (identification) related to the acceptance information from the second user device to the plurality of nodes. Based on the smart contract concluded between the first customer and the second customer in the smart contract account, the smart contract in the second area in the virtual image space Control to display smart contract execution information indicating that a contract has been concluded, wherein the plurality of nodes include an external user device or external server using the first blockchain platform, and the smart contract request The information may be information requesting to trade the NFT with a predetermined quantity of cryptocurrency used in the second blockchain platform.

According to various embodiments of the present invention, the server may provide art exhibition and sale services within the metaverse.

Effects according to the present invention are not limited to the effects described above, and other effects not described will be clearly understood by those skilled in the art from the following description.

1 shows an example of a communication structure between a server and a user device.
2 is a diagram for explaining a metaverse environment according to an embodiment.
3 is a diagram for explaining an example in which a blockchain transaction is performed.
4 is a diagram for explaining examples of a method of proving a blockchain transaction.
5 is a flowchart illustrating an operation of a server according to an exemplary embodiment.
6 is a flowchart illustrating a method of establishing a smart contract through mutual data transmission and reception between a server, a first user device, a second user device, and a plurality of nodes according to an embodiment.
7 is a block diagram showing the configuration of a server according to an embodiment.

Since the present invention can make various changes and have various embodiments, specific embodiments are illustrated in the drawings and described in detail. However, this is not intended to limit the present invention to specific embodiments, and should be understood to include all modifications, equivalents, and substitutes included in the spirit and scope of the present invention.

Terms such as first and second may be used to describe various components, but the components should not be limited by the terms. These terms are only used for the purpose of distinguishing one component from another. For example, a first element may be termed a second element, and similarly, a second element may be termed a first element, without departing from the scope of the present invention. The term "and/or" includes any combination of a plurality of related listed items or any of a plurality of related listed items.

It is understood that when an element is referred to as being "connected" or "connected" to another element, it may be directly connected or connected to the other element, but other elements may exist in the middle. It should be. On the other hand, when an element is referred to as “directly connected” or “directly connected” to another element, it should be understood that no other element exists in the middle.

Terms used in this application are only used to describe specific embodiments, and are not intended to limit the present invention. Singular expressions include plural expressions unless the context clearly dictates otherwise. In this application, the terms "include" or "have" are 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 It should be understood that the presence or addition of numbers, steps, operations, components, parts, or combinations thereof is not precluded.

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 the present invention belongs. Terms such as those defined in commonly used dictionaries should be interpreted as having a meaning consistent with the meaning in the context of the related art, and unless explicitly defined in this application, they should not be interpreted in an ideal or excessively formal meaning. don't

Hereinafter, with reference to the accompanying drawings, preferred embodiments of the present invention will be described in more detail. In order to facilitate overall understanding in describing the present invention, the same reference numerals are used for the same components in the drawings, and redundant descriptions of the same components are omitted.

1 shows an example of a communication structure between a server and a user device.

In this specification, “server” is a kind of server that communicates with external devices (eg, user devices) or external servers (other than itself) through a network, and is used to operate external devices or external servers. can indicate a server for In one example, the server may be implemented using a web server program provided in various ways according to an operating system such as DOS, Windows, Linux, Unix, and Macintosh in general server hardware.

In one embodiment, the server 110 may refer to a device that provides art exhibition and trading services within the metaverse. For example, the server 110 may be referred to by various names such as an operating server, a metaverse server, and a metaverse exhibition platform.

In this specification, “user device” refers to smart phones, mobile phones, smart TVs, smart watches, electronic wristwatches, set-top boxes, tablet PCs, digital cameras, camcorders, laptop computers, desktops, electronic With a variety of devices including book terminals, digital broadcasting terminals, PDAs (Personal Digital Assistants), PMP (Portable Multimedia Players), navigations, MP3 players, wearable devices, air conditioners, microwave ovens, audio, DVD players, etc. can be implemented

In the present specification, at least one of the server 110, the first user device 120, and the second user device 130 may communicate with each other through a communication network. The communication network may be, for example, a wireless communication network or a wired communication network. The wireless communication network may be, for example, a communication network based on Long Term Evolution (LTE), Radio Access Technology (RAT), New Radio (NR) RAT, WiFi, and the like.

In one example, at least one of the server 110, the first user device 120, and the second user device 130 may perform mutual Device-to-Device (D2D) communication, and a base station (e.g., For example, UU communication may be performed with gNB and/or eNB). In a time division multiple access (TDMA) and frequency division multiples access (FDMA) system for performing the D2D communication or the UU communication, accurate time and frequency synchronization may be required. If time and frequency synchronization are not accurate, system performance may deteriorate due to Inter Symbol Interference (ISI) and Inter Carrier Interference (ICI). In D2D communication according to an example, for time/frequency synchronization, a synchronization signal may be used in a physical layer and a master information block (MIB) may be used in a radio link control (RLC) layer.

In the D2D communication process, at least one of the server 110, the first user device 120, and the second user device 130 is directly synchronized with global navigation satellite systems (GNSS) or directly synchronized with GNSS. It can be synchronized to GNSS indirectly through a terminal (within network coverage or outside network coverage). When GNSS is set as a synchronization source, at least one of the server 110, the first user device 120, and the second user device 130 has a Coordinated Universal Time (UTC) and a (pre)set Direct Frame Number (DFN) The DFN and subframe number can be calculated using the offset.

Alternatively, at least one of the server 110, the first user device 120, and the second user device 130 may be directly synchronized with the base station or synchronized with another terminal that is time/frequency synchronized with the base station. For example, the base station may be an eNB or gNB. For example, when at least one of the server 110, the first user device 120, and the second user device 130 is within network coverage, the server 110, the first user device 120 and the second user device 130 At least one of the two user devices 130 may receive synchronization information provided by the base station and be directly synchronized with the base station. After that, at least one of the server 110, the first user device 120, and the second user device 130 may provide synchronization information to other nearby terminals. When the base station timing is set as a synchronization criterion, at least one of the server 110, the first user device 120, and the second user device 130 uses a cell (at the frequency) associated with a corresponding frequency for synchronization and downlink measurement. within cell coverage), a primary cell, or a serving cell (if outside cell coverage at the frequency).

A base station (eg, a serving cell) may provide synchronization settings for a carrier used for D2D or sidelink (SL) communication. In this case, at least one of the server 110, the first user device 120, and the second user device 130 may follow the synchronization setting received from the base station. If at least one of the server 110, the first user device 120, and the second user device 130 does not detect any cell in the carrier used for the D2D or SL communication, synchronization is set from the serving cell. If not received, at least one of the server 110, the first user device 120, and the second user device 130 may follow a preset synchronization setting.

Alternatively, at least one of the server 110, the first user device 120, and the second user device 130 may be synchronized with another terminal that has not obtained synchronization information directly or indirectly from the base station or GNSS. Synchronization source and preference may be set in advance for the terminal. Alternatively, the synchronization source and preference may be set through a control message provided by the base station.

In one embodiment, at least one of the server 110, the first user device 120, and the second user device 130 may mutually communicate through the network 100 (or a communication network). For example, when the server 110 transmits data to the network 100, the network 100 may deliver (transmit) the data to the user device 120. Alternatively, when the user device 120 transmits data to the network 100, the network 100 may transmit (transmit) the data to the server 110.

In the following description of FIGS. 2 to 7 , based on signal exchange or communication between at least one of the server 110 , the first user device 120 and the second user device 130 , the server 110 provides a meta A detailed review of how to provide art exhibition and sale services on the bus.

2 is a diagram for explaining a metaverse environment according to an embodiment.

Metaverse means a virtual space platform that enables real-life social, economic, educational, cultural, and scientific and technological activities through avatars. 2 shows an example in which the user uses/experiences/experiences the 3D virtual space 210 in the metaverse through the avatar 220. In the example of FIG. 2, the virtual space is depicted as 3D, but the metaverse environment is not limited to 3D. The metaverse environment may be expressed through a two-dimensional flat virtual space, or through a four-dimensional virtual space in which the sense of touch or smell is added.

A plurality of users can use/experience/experience the metaverse environment through their respective avatars. For example, within the 3D virtual space 210 in the metaverse, the first avatar performs physical activities such as moving, jumping, sitting, lying down, or exercising, and trading with the second avatar. Activities may be performed, and learning may be performed through images displayed in the 3D virtual space 210 .

In one embodiment, a transaction is made between a first avatar and a second avatar within the metaverse, or a transaction between the first avatar and a metaverse server (eg, a first avatar purchasing a work of art from a virtual art museum within the metaverse). case), the cryptocurrency of the blockchain platform can be used. Cryptocurrency may also be referred to as virtual currency, digital asset, digital currency, and the like. A transaction method through cryptocurrency will be described later in the description of FIGS. 3 and 4 .

In one embodiment, a user who controls the avatar 220 through a user device provides a view, such as observing the avatar 220 at a specific location in the 3D virtual space 210 in the metaverse, from the user device. can receive For example, the user may select an avatar (within a height range higher than the height of the avatar 220 in the 3D virtual space 210) from the user device. 220), or provided with the same view as observing the avatar 220 from the side (ie, within an altitude range lower than the height of the avatar 220 in the 3D virtual space 210). can receive In this case, the user device may be a device having a flat display such as a PC, a laptop computer, and a smart phone.

In another embodiment, a user who controls the avatar 220 through a user device may be provided with the same view as when the user becomes the avatar 220 and observes the 3D virtual space 210 from the user device. there is. That is, when the avatar 220 stands in front of the TV at home in the 3D virtual space 210, the user can be provided with the same view as if he/she is in front of the TV in the 3D virtual space 210, and the avatar 220 When the user tilts his or her head upward, the user may be provided with the same view as looking at the ceiling of a home in the 3D virtual space 210 . In this case, the user device may be a head mounted display (HMD), and the 3D virtual space 210 may be a virtual reality (VR) 360 degree image implemented through the HMD.

3 is a diagram for explaining an example in which a blockchain transaction is performed.

A block chain is a collection of blocks connected one after another. Here, the block forming the chain may record/include confirmed transaction details traded for a certain period of time through the corresponding blockchain platform. In order for a block recording transaction details before confirmation to be approved, a validity judgment must be performed by network participants. An example of a validity judgment method or a consensus protocol will be described later in detail with reference to FIG. 4 .

Figure 3 shows a communication structure between participants performed within a specific blockchain platform. The first block chain transaction participation device 310 and the second block chain transaction participation device 320 may represent user devices of two users performing block chain transactions, and one device or all devices may be a server. can For example, each of the first blockchain transaction participation device 310 and the second block chain transaction participation device 320 is the server 110 described above in FIG. 1, the first user device 120 or the second user device (130).

A blockchain platform may mean a blockchain ecosystem or a blockchain network operated based on an independent blockchain technology. There are various types of blockchain platforms, such as bitcoin, ethereum, solana, and klaytn, and each blockchain platform has a blockchain consensus protocol, interface, and block size. Some of the elements may be different. The transaction method used in each blockchain platform is cryptocurrency, and the method of generating and trading cryptocurrency may vary according to the consensus protocol adopted by each blockchain platform. The consensus protocol is described in detail in FIG. to be described later.

Ethereum is a public blockchain platform created by Vitalik Buterin on July 30, 2015, and represents the name of the platform's own currency (i.e., cryptocurrency). While Bitcoin focuses on payment or transaction-related systems, that is, functions as currency, Ethereum is based on blockchain, which is a core technology. It can provide scalability so that various applications can be operated transparently. In other words, it is a platform that allows anyone to create and use analysis applications (Decentralized Applications) called dAPP as well as currency. The mainstream of Ethereum's programming language has versatility by supporting most major programming languages such as Solidity, which is a variation of JavaScript, C++, Java, Python, and Go.

NFT (Non-Fungible Token), that is, 'non-fungible token', can refer to a blockchain-based token that is unique and scarce because it is impossible to exchange and copy. Fungible cryptocurrencies such as Bitcoin mentioned above have the same value, so 1:1 exchange is possible, whereas NFTs have values and characteristics that cannot be replaced by each being given a unique recognition value. do. By applying NFT technology that puts a unique serial number on assets that can be digitized, it is possible to create (digital) assets that cannot be duplicated, that is, the only one in the world. They range from digital contents such as texts to artworks, collectibles, game items, phonemes, various products, and virtual real estate.

The plurality of nodes 330 represent a plurality of servers, a plurality of devices, and a plurality of networks involved in the consensus protocol of transactions performed on the specific blockchain platform. The ranges of the plurality of nodes 330 may be different according to the type of consensus protocol.

In FIG. 3, it is described that the plurality of nodes 330 and the first block chain transaction participation device 310 and the second block chain transaction participation device 320 are distinguished, but this is to clearly indicate the block chain transaction participation device. In some embodiments, the plurality of nodes 330 may include the first blockchain transaction participation device 310 and the second blockchain transaction participation device 320 . The plurality of nodes 330 shown in FIG. 3, the first blockchain transaction participating device 310 and the second blockchain transaction participating device 320, through the network 100 described above in FIG. Data can be transmitted and received between them.

A method of transmitting a specific cryptocurrency used within the specific blockchain platform from the first blockchain transaction participation device 310 to the second blockchain transaction participation device 320 according to an embodiment is as follows. The address of the cryptocurrency electronic wallet owned by the first user of the first blockchain transaction participation device 310, the amount of the specific cryptocurrency to be transmitted, and the cryptocurrency electronic wallet to be transmitted (i.e. , Transaction information (or ID) including the address of the cryptocurrency electronic wallet owned by the second user of the second blockchain transaction participation device 320, the first blockchain transaction participation device 310 ) to the plurality of nodes 330, the plurality of nodes 330 may approve the transaction through a predetermined consensus protocol method. If the transaction is approved, the specified amount of cryptocurrency may be transferred from the cryptocurrency electronic wallet owned by the first user to the cryptocurrency electronic wallet owned by the second user. In other words, through the plurality of nodes 330, the specific cryptocurrency by the amount is reduced in the cryptocurrency electronic wallet owned by the first user, and in the cryptocurrency electronic wallet owned by the second user. A block recording that the specific cryptocurrency has increased by the amount can be combined with an existing block chain in the block chain platform to form a new block chain.

A smart contract refers to a digital contract method in which contract conditions are coded based on blockchain technology and the contents of the contract are fulfilled when the conditions are met. The first blockchain transaction participation device 310 and the second blockchain transaction participation device 320 according to an embodiment conclude a smart contract based on the specific block chain platform as follows. same. At this time, either of the first blockchain transaction participation device 310 and the second blockchain transaction participation device 320 supports a non-fungible token (NFT) trading platform such as, for example, opensea. It may be a server that When the first blockchain transaction participation device 310 requests the plurality of nodes 330 to create a smart contract account, the plurality of nodes 330 create a smart contract account can do. At this time, the second blockchain transaction participation device 320 agreeing to the contract details of the smart contract transfers the contract details and the first user of the first block chain transaction participation device 310 to the plurality of nodes 330. When transmitting transaction information (or ID) including the cryptocurrency electronic wallet address owned by and the cryptocurrency electronic wallet address owned by the second user of the second blockchain transaction participation device 320, the smart contract By being concluded, the contents of the contract can be realized/executed. For example, the NFT owned by the first user moves from the cryptocurrency electronic wallet of the first user to the cryptocurrency electronic wallet of the second user, and the predetermined cryptocurrency owned by the second user moves to the second user's cryptocurrency electronic wallet. It is possible to move from the user's cryptocurrency electronic wallet to the first user's cryptocurrency electronic wallet.

4 is a diagram for explaining examples of a method of proving a blockchain transaction.

Consensus protocol methods in which a plurality of nodes 330 constituting a blockchain platform prove blockchain transactions include, for example, Proof of Work (PoW) 410 and Proof of Stake (Proof of Stake). PoS) 420 exists, and the types of consensus protocol methods are not limited to the above two.

In the proof-of-work method 410, a block creator (or miner, verifier, etc.) applies a nonce value and hash algorithm with random characteristics to transaction record information, It refers to a consensus protocol that creates a block and receives compensation by detecting a hash value that satisfies the difficulty condition. Block creators can receive, for example, cryptocurrency used in the blockchain platform as a reward. Blockchain platforms that use the proof-of-work scheme 410 include, for example, Bitcoin. When the consensus protocol method of a specific block chain platform is the proof-of-work method 410, since the object of proving the block chain transaction within the specific block chain platform is the block creator (or miner, verifier, etc.), the plurality of Nodes 330 may mean the block creator.

The proof-of-stake method 420 refers to a consensus protocol that differentially grants authority to create a block to each node according to the amount of each node's stake in the blockchain platform at the time of consensus. The stake of each node may be proportional to the amount of cryptocurrency each node holds. Each node can receive a reward for the transaction fee generated by the blockchain platform according to the rate at which each node contributes to block creation. Blockchain platforms using the proof-of-stake method 420 include, for example, Solana and ADA. When the consensus protocol method of a specific blockchain platform is the proof-of-stake method (420), all participants or nodes holding cryptocurrency used in the blockchain platform are subject to proof of blockchain transactions within the specific blockchain platform. Therefore, the plurality of nodes 330 may mean all participants or nodes.

5 is a flowchart illustrating an operation of a server according to an exemplary embodiment.

Operations disclosed in the flowchart of FIG. 5 may be performed in conjunction with various embodiments of the present invention. In one example, the server illustrated in FIG. 5 may correspond to the server 110 illustrated in FIG. 1 , the server 601 illustrated in FIG. 6 , or the server 700 illustrated in FIG. 7 . In one example, the operations disclosed in the flowchart of FIG. 5 may correspond to some of the (server) operations disclosed in FIGS. 1 to 4 and 7 .

In step S510, the server according to an embodiment may receive, from the first user device of the first customer, a metaverse artwork image for display in a virtual image space in the metaverse.

In one embodiment, the virtual image space may be a 3D virtual image space, a 4D virtual image space, or a 2D virtual image space.

In one example, the metaverse art work image may be a digital art work image obtained by digitizing a real art work image produced by an offline artist based on photography.

In another example, the metaverse artwork image may be a digital artwork image created by an artist based on a computing device such as a PC, tablet, laptop, or smart phone online.

In one embodiment, the format of the metaverse art work image is a computing image file, and the file extension may be PNG, JPG, JPEG, GIF, WEBP, MP4, and the like.

In step S520, the server according to an embodiment is a plurality of nodes in the first blockchain platform based on blockchain technology, NFTs (non-NFTs) representing the copyright of the metaverse art work image. -fungible token) can transmit NFT creation request information.

In one embodiment, the first blockchain platform may be Ethereum. However, the first blockchain platform is not limited to Ethereum, and various blockchain platforms such as Klaytn, Solana, and Ada may operate as the first blockchain platform.

In one embodiment, the NFT creation request information is transmitted from the first user device to the server in advance, and the server replaces the NFT creation request information received from the first user device with the plurality of nodes. it may be conveying

In one embodiment, the NFT creation request information includes the name of the metaverse artwork image, a description of the metaverse artwork image, the name of the artist of the metaverse artwork image, and the metaverse artwork. It may include at least one of the SNS address of the artist of the image and the link where the metaverse art work image is stored or posted.

In one embodiment, the NFT generation request information may be otherwise referred to as NFT minting information, NFT minting request information, and the like.

A plurality of nodes according to an embodiment, based on the received NFT creation request information, create a block indicating the generation of the NFT, and combine the created block with an existing block chain to create a new block chain. can do. Based on the creation of the new block chain, the NFT may be created and added/included/transmitted to the cryptocurrency electronic wallet of the first customer.

In step S530, the server according to an embodiment generates a smart contract (smart contract) of the NFT generated by the plurality of nodes based on the NFT creation request information from the first user device of the first customer. You can receive smart contract request information requesting a contract.

In one embodiment, the smart contract related to the NFT may be content for trading/exchanging the NFT with a predetermined cryptocurrency used in a specific blockchain platform. The smart contract request information includes the address of the first customer's cryptocurrency electronic wallet holding the NFT, the predetermined amount of cryptocurrency, the type of cryptocurrency, and the closing time of the auction for the NFT. etc. may be included.

In one example, the quantity of the predetermined cryptocurrency may represent the minimum auction quantity at the start of the auction for the smart contract of the NFT. That is, the auction can be started from the predetermined quantity of cryptocurrency, and a smart contract can be concluded with the auctioneer who presented the highest quantity among the auction quantities presented until the end of the auction.

In another example, the amount of the predetermined cryptocurrency may decrease based on the time the metaverse art work image is displayed in the virtual image space, the access frequency of avatars in the metaverse, and the like. More specific embodiments and examples will be described later.

In step S540, the server according to an embodiment requests the plurality of nodes to create a smart contract account for the conclusion of the smart contract based on the smart contract request information. can

In one embodiment, the smart contract account may be a blockchain account/address created under the first blockchain platform. For example, the smart contract account may be a blockchain account/address created under the Ethereum platform.

In step S550, the server according to an embodiment may place the metaverse art work image and the smart contract request information in a first area of the inner wall surface of the virtual art exhibition hall in the virtual image space. there is.

In one embodiment, the server may place the metaverse art work image and the smart contract request information in a first area of the inner wall of the virtual art exhibition hall where the art work image is not yet displayed (displayed). The size of the first area may be the same as or different from the size of other artwork images already displayed in the virtual art exhibition hall, and a specific size setting may be set in advance by the server. The server adjusts the size of the metaverse art work image by the size of the first area so that all parts of the first area are displayed as the metaverse art work image, but the metaverse art work image (or the first area) Area 1) can be arranged so that the smart contract request information (type and quantity of cryptocurrency required to be exchanged with the NFT, auction start price and auction end date, etc.) is displayed at the lower right corner of area 1).

In step S560, the server according to an embodiment receives the smart contract request information from a first avatar of the second customer located in the metaverse, controlled by a second user device of the second customer. Acceptance information may be received.

In one embodiment, in generating an avatar in the metaverse, avatar request information input by a customer through a user device may be used. The avatar request information may include hairstyle selection information of the avatar, face type selection information of the avatar, body shape selection information of the avatar, clothing selection information of the avatar, and the like. Selectable hairstyle options, face shape options, body shape options, clothing options, etc. may be previously set by the server.

In one embodiment, the consent information may include information indicating that the second customer agrees to the smart contract, and whether the second customer may perform a transaction to conclude the smart contract. Information to be confirmed and the address of the second customer's cryptocurrency electronic wallet may be included.

The server according to an embodiment may transmit, to the second user device of the second customer, information confirming that it is possible to perform the transaction for entering into the smart contract. The second user device according to an embodiment may transmit a transaction ID for entering into the smart contract to the plurality of nodes.

In one example, the transaction ID may include an address of the cryptocurrency electronic wallet of the second customer, an address of the smart contract account, and quantity information of cryptocurrency for trading with the NFT.

In one embodiment, based on the fact that the transaction ID is approved by the plurality of nodes and a predetermined amount of cryptocurrency for trading with the NFT is transmitted to the smart contract account, the first customer and the first 2 Smart contracts can be concluded between customers.

In step S570, the server according to an embodiment, in the smart contract account based on the transmission of the transaction ID (identification) related to the approval information from the second user device to the plurality of nodes. Based on the conclusion of the smart contract between the first customer and the second customer, smart contract execution information indicating that the smart contract has been concluded is displayed in the second area in the virtual image space. You can control it.

In one embodiment, the plurality of nodes may include an external user device or an external server using the first blockchain platform.

In one embodiment, the smart contract request information may be information requesting to trade the NFT with a predetermined quantity of cryptocurrency used in the second blockchain platform.

In one example, the second blockchain platform may be the same as the first blockchain platform. For example, both the first blockchain platform and the second blockchain platform are Ethereum platforms, and the cryptocurrency may be Ethereum.

In another example, the second blockchain platform may be different from the first blockchain platform. For example, the first blockchain platform may be an Ethereum platform, the second blockchain platform may be a Klaytn platform, and the cryptocurrency may be Klaytn.

In one embodiment, the quantity of the cryptocurrency to be transacted with the NFT, indicated by the smart contract request information, is the predetermined quantity at the initial time when the smart contract request information is generated, and from the initial time Based on the elapsed minutes of a, it is determined as b * (the predetermined quantity), where a is a natural number and b can be a real number greater than or equal to 0 and less than 1.

For example, if the predetermined quantity is 5, the quantity of the cryptocurrency to be transacted with the NFT, indicated by the smart contract request information, is: 5 at the initial time when the smart contract request information is generated , Based on the elapse of 200 minutes from the initial time point, (0.8) * (5) = 4 is determined, where a = 200 and b = 0.8.

In one embodiment, the quantity of the cryptocurrency to be transacted with the NFT, indicated by the smart contract request information, is the predetermined quantity at the initial time when the smart contract request information is generated, and from the initial time Based on the elapse of c hours, {(total number of avatars that accessed the metaverse art work image) / (c hours)} and [(total number of avatars displayed in the virtual art gallery during the previous c hours) Total number of avatars accessing art work images) / {(c time)*(total number of art work images)}], where c may be a natural number.

For example, if the predetermined quantity is 5, the quantity of the cryptocurrency to be transacted with the NFT, indicated by the smart contract request information, is: 5 at the initial time when the smart contract request information is generated , Based on the elapse of 5 hours from the initial time point, {(total number of avatars that accessed the metaverse art work image) / 5}, and [(total art displayed in the virtual art exhibition hall for the previous 5 hours) It may be determined according to a comparison result between the total number of avatars accessing work images) / {5 * (the total number of art work images)}]. where c is 5. In other words, based on whether the number of avatars (customers) who accessed the metaverse art work image during a specific time is greater or less than other art works in the virtual image space, the amount of the cryptocurrency to be traded with the NFT is determined. / can be changed.

In one embodiment, based on the fact that the second avatar of a specific customer is located within a preset critical distance from the specific artwork image displayed in the virtual art exhibition hall, the second avatar approaches the specific artwork image. can be determined as one.

In one example, the critical distance may be 2 m (a numerical reference in a virtual image space).

In one embodiment, {(total number of avatars accessing the metaverse artwork image) / (c time)} is [(the avatar accessing the total artwork images displayed in the virtual art gallery during the previous c time period) of the cryptocurrency to be transacted with the NFT, at the time when the c time elapses from the initial time point, based on greater than {(c time) * (the total number of art work images)}] The quantity is determined by d * (the predetermined quantity), and d may be a real number greater than 1.

In other words, the number of cryptocurrencies to be traded with the NFT is increased compared to the initial quantity based on the fact that the number of avatars (customers) who accessed the image of the metaverse art work during a specific time is greater than that of other art works in the virtual image space. (d>1) can be done.

In one embodiment, {(total number of avatars accessing the metaverse artwork image) / (c time)} is [(the avatar accessing the total artwork images displayed in the virtual art gallery during the previous c time period) of the cryptocurrency to be transacted with the NFT, at the time when the c time elapses from the initial time point, based on less than {(c time) * (the total number of art work images)}] The quantity is determined by e * (the predetermined quantity), and e may be a real number greater than 0 and less than 1.

In other words, based on the fact that the number of avatars (customers) who accessed the image of the metaverse artwork during a specific time is smaller than that of other artworks in the virtual image space, the quantity of the cryptocurrency to be traded with the NFT is reduced compared to the initial quantity. (0<e<1).

In one embodiment, based on the conclusion of the smart contract, the ownership of the image of the metaverse artwork is transferred from the first customer to the second customer in the metaverse, and the smart contract Based on the contract and the ownership of the metaverse art work image is transferred to the second customer in the metaverse, the metaverse art work image is a private room of the second customer in the metaverse. It can be controlled to be displayed within.

In one example, the second customer's personal space may be the second customer's home in the virtual image space of the metaverse. Based on the fact that the ownership of the metaverse art work image is transferred to the second customer in the metaverse, the metaverse art work image is no longer displayed in the first area of the virtual art exhibition hall, and At the same time, the metaverse art work image can be controlled to be displayed in a specific area of the house of the second customer.

In one embodiment, based on the conclusion of the smart contract, the ownership of the image of the metaverse artwork is transferred from the first customer to the second customer in the metaverse, and the smart contract Based on the conclusion that the ownership of the metaverse artwork image is transferred to the second customer in the metaverse, the first avatar of the second customer in the metaverse recalls the metaverse artwork image. It can be controlled to enable transport within the virtual image space.

In one example, before the ownership of the metaverse artwork image within the metaverse is transferred to the second customer, the metaverse artwork image may be displayed while being fixed in the first area. . Then, based on the fact that the ownership of the metaverse artwork image is transferred to the second customer in the metaverse, the first avatar of the second customer in the metaverse transfers the metaverse artwork image to the virtual It can be controlled to enable transport within image space. For example, a message informing that the first avatar is able to carry the metaverse art work image around the first area (eg, an area spaced apart from the first area by a predetermined distance). can be displayed. The second customer who controls the first avatar taps or clicks the first area where the metaverse art work image is displayed through the second user device, or through an auxiliary manipulation device. When the hand of the first avatar is controlled to reach the first region, the first avatar may carry the image of the metaverse art work within the metaverse.

In one embodiment, the quantity of the cryptocurrency to be transacted with the NFT, indicated by the smart contract request information, is the predetermined quantity at the initial time when the smart contract request information is generated, and from the initial time Based on the elapse of c hours, {(total number of avatars that accessed the metaverse art work image) / (c hours)} and [(total number of avatars displayed in the virtual art gallery during the previous c hours) The total number of avatars accessing art work images) / {(c time)*(total number of art work images)}] Based on being located within a predetermined critical distance from the specific artwork image displayed on, it is determined that the second avatar has approached the specific artwork image, {(Avatar approaching the metaverse artwork image ) / (c time)} is [(the total number of avatars that have accessed the total art work images displayed in the virtual art exhibition hall during the previous c time) / {(c time) * (the total art work images The number of cryptocurrencies to be transacted with the NFT is determined by d * (the predetermined quantity) at the time when c time elapses from the initial time point, based on greater than the number of )}], where d is 1 It is a bigger mistake, and {(total number of avatars that accessed the metaverse art work image) / (c time)} is [(avatar that accessed total art work images displayed in the virtual art exhibition hall during the previous c time period) of the cryptocurrency to be transacted with the NFT, at the time when the c time elapses from the initial time point, based on less than {(c time) * (the total number of art work images)}] The quantity is determined by e * (the predetermined quantity), where e is a real number greater than 0 and less than 1, and based on the conclusion of the smart contract, the ownership of the image of the metaverse artwork in the metaverse. Remind this In the metaverse, based on the transfer from the first customer to the second customer, and the smart contract being concluded, the ownership of the metaverse artwork image in the metaverse is transferred to the second customer. The first avatar of the second customer may be controlled to be able to carry the metaverse artwork image within the virtual image space.

In one embodiment, the quantity of the cryptocurrency to be transacted with the NFT, indicated by the smart contract request information, is the predetermined quantity at the initial time when the smart contract request information is generated, and from the initial time Based on the elapse of c hours, {(total number of avatars that accessed the metaverse art work image) / (c hours)} and [(total number of avatars displayed in the virtual art gallery during the previous c hours) The total number of avatars accessing art work images) / {(c time)*(total number of art work images)}] Based on being located within a predetermined critical distance from the specific artwork image displayed on, it is determined that the second avatar has approached the specific artwork image, {(Avatar approaching the metaverse artwork image ) / (c time)} is [(the total number of avatars that have accessed the total art work images displayed in the virtual art exhibition hall during the previous c time) / {(c time) * (the total art work images The number of cryptocurrencies to be transacted with the NFT is determined by d * (the predetermined quantity) at the time when c time elapses from the initial time point, based on greater than the number of )}], where d is 1 It is a bigger mistake, and {(total number of avatars that accessed the metaverse art work image) / (c time)} is [(avatar that accessed total art work images displayed in the virtual art exhibition hall during the previous c time period) of the cryptocurrency to be transacted with the NFT, at the time when the c time elapses from the initial time point, based on less than {(c time) * (the total number of art work images)}] The quantity is determined by e * (the predetermined quantity), where e is a real number greater than 0 and less than 1, and based on the conclusion of the smart contract, the ownership of the image of the metaverse artwork in the metaverse. Remind this Based on the transfer from the first customer to the second customer, and the smart contract concluded and the ownership of the metaverse artwork image within the metaverse transferred to the second customer, the metaverse art The work image can be controlled to be displayed in the private room of the second customer in the metaverse.

6 is a flowchart illustrating a method of establishing a smart contract through mutual data transmission and reception between a server, a first user device, a second user device, and a plurality of nodes according to an embodiment.

In the flowchart of FIG. 6 , S605 , S610 , S620 , S625 , S635 , S640 , and S655 may correspond to steps S510 to S570 of FIG. 5 .

In step S605, the server 601 according to an embodiment may receive a metaverse art work image for display in a virtual image space within the metaverse from the first user device 602.

In step S610, the server 601 according to an embodiment may transmit NFT generation request information for generating an NFT representing the copyright of the metaverse artwork image to a plurality of nodes 604.

In step S615, a plurality of nodes 604 according to an embodiment may generate an NFT related to a metaverse artwork image.

In step S620, the server 601 according to an embodiment may receive, from the first user device 602, smart contract request information for requesting a smart contract of NFT.

In step S625, the server 601 according to an embodiment requests the plurality of nodes 604 to create a smart contract account for entering into a smart contract based on the smart contract request information. can

In step S630, the plurality of nodes 604 according to an embodiment may create a smart contract account.

In step S635, the server 601 according to an embodiment may place the metaverse art work image and smart contract request information in a first area of the inner wall of the virtual art exhibition hall in the virtual image space.

In step S640, the server 601 according to an embodiment may receive consent information for the smart contract request information from the second user device 603.

In step S650, the second user device 603 according to an embodiment may transmit a transaction ID related to approval information to the plurality of nodes 604.

In step S655, a smart contract may be concluded between the first customer and the second customer in the smart contract account. At this time, the smart contract may be concluded based on the transaction approval of the plurality of nodes 604 for the transaction ID.

In step S660, the server 601 according to an embodiment may control smart contract conclusion information indicating that a smart contract has been concluded to be displayed in the second area in the virtual image space. At this time, prior to step S660, the server 601 may receive information indicating that a smart contract has been concluded between the first customer and the second customer in the smart contract account from the plurality of nodes 604. .

7 is a block diagram showing the configuration of a server according to an embodiment.

As shown in FIG. 7 , the server 700 according to an embodiment may include a database (DB) 710 , a transceiver 720 and a processor 730 . However, in some cases, all of the components shown in FIG. 7 may not be essential components of the server 700, and the server 700 may be implemented with more or fewer components than those shown in FIG. can

In the server 700 according to an embodiment, the database 710, the transceiver 720, and the processor 730 may be implemented as separate chips, or at least two or more components may be implemented through a single chip. may be

The database (DB, 710) may store data received from the transceiver 720 or the processor 730. In one embodiment, database 710 may store at least one program. In one example, the at least one program may be used when the processor 730 executes a learning model.

The transmission/reception unit 720 may be used for communication between modules in the server and/or transmission/reception of data/signals, and may perform communication with an external device. In one example, the transceiver 720 may transmit and receive data to and from an external device (eg, an external user device, an external server, etc.).

The processor 730 according to an embodiment may control overall operations of the server 700 . In one example, the processor 730 may overall control the database 710 and the transceiver 720 by executing programs stored in the database 710 of the server 700 . In one example, the processor 730 may perform some of the operations of the server 700 in FIGS. 1 to 6 by executing programs stored in a database of the server 700 .

The processor 730 according to an embodiment includes a transceiver 720 to receive a metaverse art work image for display in a virtual image space in the metaverse, from a first user device of a first customer. ) can be controlled.

The processor 730 according to an embodiment is a plurality of nodes in the first blockchain platform based on blockchain technology, NFTs (non- It is possible to control the transceiver 720 to transmit NFT generation request information for generating a fungible token).

Processor 730 according to an embodiment, the smart contract (smart contract) of the NFT generated by the plurality of nodes based on the NFT generation request information from the first user device of the first customer ) can be controlled to receive smart contract request information.

The processor 730 according to an embodiment, based on the smart contract request information, requests the plurality of nodes to create a smart contract account for the conclusion of the smart contract. The transceiver 720 may be controlled.

The processor 730 according to an embodiment may place the metaverse art work image and the smart contract request information in a first area of the inner wall of the virtual art exhibition hall in the virtual image space. .

Processor 730 according to an embodiment, from a first avatar of the second customer located in the metaverse, controlled by a second user device of the second customer, to the smart contract request information The transceiver 720 may be controlled to receive acceptance information.

The processor 730 according to an embodiment, based on transmission of a transaction ID (identification) related to the approval information from the second user device to the plurality of nodes, in the smart contract account Based on the conclusion of the smart contract between the first customer and the second customer, control to display smart contract execution information indicating that the smart contract has been concluded in the second area in the virtual image space can do.

In one embodiment, the plurality of nodes may include an external user device or an external server using the first blockchain platform.

In one embodiment, the smart contract request information may be information requesting to trade the NFT with a predetermined quantity of cryptocurrency used in the second blockchain platform.

Some embodiments may be implemented in the form of a recording medium including instructions executable by a computer, such as program modules executed by a computer. Computer readable media can be any available media that can be accessed by a computer and includes both volatile and nonvolatile media, removable and non-removable media. Also, computer readable media may include both computer storage media and communication media. Computer storage media includes both volatile and nonvolatile, 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. Communication media typically includes 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 includes any information delivery media.

So far, the present invention has been looked at mainly with its preferred embodiments. Those skilled in the art to which the present invention pertains will understand that the present invention can be implemented in a modified form without departing from the essential characteristics of the present invention. Therefore, the scope of the present invention should be construed to include various embodiments within the scope equivalent to those described in the claims without being limited to the above-described embodiments.

Claims (1)

In a server providing a metaverse platform,
Transceiver; and a processor; Including,
The processor:
Controlling the transceiver to receive, from a first user device of a first customer, a metaverse art work image for display in a virtual image space in the metaverse provided through the metaverse platform;
NFT creation request information for generating a non-fungible token (NFT) representing the copyright of the image of the metaverse art work, with a plurality of nodes in the first blockchain platform based on blockchain technology. Control the transceiver to transmit,
A smart contract requesting a smart contract of the NFT generated by the plurality of nodes based on the NFT generation request information from the first user device of the first customer Control the transceiver to receive request information;
Based on the smart contract request information, controlling the transceiver to request the plurality of nodes to create a smart contract account for the conclusion of the smart contract,
Placing the metaverse art work image and the smart contract request information in a first area of the inner wall of the virtual art exhibition hall in the virtual image space;
The transmission and reception to receive acceptance information for the smart contract request information from a first avatar of the second customer located in the metaverse, controlled by a second user device of the second customer control wealth,
The smart contract between the first customer and the second customer in the smart contract account based on transmission of a transaction ID (identification) related to the approval information from the second user device to the plurality of nodes. Based on the fact that the contract has been concluded, control to display smart contract conclusion information indicating that the smart contract has been concluded in the second area in the virtual image space,
The plurality of nodes include an external user device or an external server using the first blockchain platform,
The smart contract request information is information requesting to trade the NFT with a predetermined quantity of cryptocurrency used in the second blockchain platform,
The quantity of the cryptocurrency to be transacted with the NFT, indicated by the smart contract request information, is the predetermined quantity at the initial point in time when the smart contract request information is generated, and is a minute from the initial point in time. Based on this elapsed time, it is determined as b * (the predetermined quantity), where a is a natural number, and b is a real number greater than or equal to 0 and less than 1;
Based on the fact that the second avatar of the specific customer is located within a preset threshold distance from the specific artwork image displayed in the virtual art exhibition hall, it is determined that the second avatar has approached the specific artwork image, server.

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