CN115760240A - A system and method for providing user-customized advertisements in Metaverse using blockchain - Google Patents

Abstract

The invention provides a system and a method for providing user customized advertisements in a meta-boundary space by using a block chain. In the present invention, the user's field of interest is designated based on time information and location information according to the movement of the user terminal, and advertisements of the field of interest are displayed at specific locations of the meta-boundary space, thereby providing a user-customized advertisement suitable for the user's field of interest.

Description

A system and method for providing user-customized advertisements in Metaverse using blockchain

technical field

The present invention relates to a system and method for providing user-customized advertisements in Metaverse.

Background technique

Recently, technologies of virtual reality (Virtual Reality), augmented reality (Augmented Reality) and mixed reality (Mixed Reality) using computer graphics technology are developing.

Virtual reality technology refers to the technology that uses computers to construct a virtual space that does not exist in the real world, and then makes the virtual space feel like reality, and augmented reality or mixed reality technology refers to the addition of computer-generated information on the real world technology, that is, a technology that interacts with users in real time by combining the real world and the virtual world.

Among them, augmented reality and mixed reality technologies are being used in conjunction with technologies in various fields (eg, broadcasting technology, medical technology, gaming technology, etc.).

The weather map in front of the weather announcer who is forecasting the weather on television (TV) changes naturally, or in sports broadcasting, an advertisement image that does not exist in the stadium is inserted and transmitted on the screen to make it appear as if it actually exists in the stadium The situation is a classic example of the combined use of augmented reality in the field of broadcast technology.

In particular, with the advent of smart phones (Smart phones), these augmented reality and mixed reality technologies are being realized and provided as various application services.

Metaverse is a representative service that provides augmented reality or mixed reality to users. Metaverse is a compound word of "Meta", which means fiction and abstraction, and "Universe", which means the real world, and it does not mean a three-dimensional virtual world.

Metaverse is a more advanced concept than the traditional virtual reality environment. It provides an augmented reality environment that absorbs the virtual world such as the network and the Internet into the real world.

In this regard, Korean Laid-Open Patent No. 10-2009-0053183 discloses a groupware service that provides real-time context awareness (Context Awareness; CA) in a Metaverse-based network environment, enabling users to use virtual avatars (Avatar) and A service technology that enables personal communities to experience immersive reality and perform various activities in cyberspace as in real life.

At the same time, there are more and more attempts to provide advertisements to users in Metaverse, and the scale of the advertisement market is gradually expanding.

Advertising refers to all activities that place the image of a product or brand in the memory of consumers, increase product or brand awareness, and have the result of increasing sales.

Korean Granted Patent No. 10-1725008 discloses a technology for providing user-customized advertisements to virtual reality content. The authorized patent has the feature of providing user-customized advertisements by using a database storing user interest information.

Although the above-mentioned authorized patents have the advantage of being able to provide user-customized advertisements using virtual reality content, there is a problem of only providing advertisements limited to information requested by users.

prior art literature

patent documents

(Existing Document 0001) Korean Laid-Open Patent No. 10-2009-0053183.

(Existing Document 0002) Korean Patent No. 10-1725008.

Contents of the invention

The problem to be solved by the invention

The purpose of this invention is to use blockchain to provide user-customized advertisements in Metaverse.

The purpose of the present invention is to periodically collect the time and location of the user's movement, estimate the field of interest by analyzing the user's action pattern, and provide advertisements related to the user's field of interest.

The purpose of the present invention is to improve the efficiency of advertisements by providing customized advertisements for users' interest fields.

solutions to problems

According to an embodiment of the present invention, a system for providing user-customized advertisements in Metaverse Space using blockchain includes: a user terminal that generates time information and location information based on movement, and uses Metaverse Space to watch the above-mentioned advertisements provided in Metaverse Space Advertisement; management server, when the above-mentioned user terminal stays at a specific location for more than a set time, based on the time information and location information of the above-mentioned user terminal, set the user's field of interest corresponding to the above-mentioned specific location; the advertisement server provides information corresponding to the above-mentioned field of interest The user-customized advertisement for the above-mentioned Metaverse space; the Metaverse server provides the above-mentioned Metaverse space, and receives the user-customized advertisement corresponding to the above-mentioned user's field of interest from the above-mentioned advertisement server, and displays the above-mentioned user-customized advertisement at the position set in the above-mentioned Metaverse space; , the above-mentioned user terminal, management server, Metaverse server, and advertisement server form a public consensus network, and a user block corresponding to the above-mentioned user terminal is generated in the above-mentioned public consensus network, and the above-mentioned time information, location information, field of interest, and user-customized advertisement It is recorded in the above-mentioned user block, and the recorded above-mentioned user block reaches a consensus in the above-mentioned public consensus network and is stored in a decentralized manner.

Within the above-mentioned set time, weights are assigned to the fields of interest according to the place and time the user terminal stays, and display times of the advertisements provided in the Metaverse Space are set differently according to the weights assigned.

When there are multiple fields of interest, a weight greater than a preset value is given to the field of interest corresponding to the place where the user terminal stays above the preset time, and the greater the weight, the greater the advertisement display time in the field of interest. long.

The above-mentioned system also includes an advertiser terminal that entrusts advertisements to the above-mentioned advertisement server, and the above-mentioned advertisement server and the above-mentioned advertiser terminal become nodes forming a private consensus network. and distributed storage.

In addition, the method for providing user-customized advertisements in Metaverse using blockchain according to an embodiment of the present invention includes: generating an advertisement corresponding to a user terminal in a public consensus network composed of a user terminal, a management server, a Metaverse server, and an advertisement server. the user block, and the step of recording the time information and location information of the user terminal movement in the user block; when the user terminal stays at a specific location for more than a set time, the management server based on the time information of the user terminal and location information to set the user's field of interest corresponding to the above-mentioned specific location, and record the above-mentioned field of interest in the above-mentioned user block; when the above-mentioned user terminal enters the Metaverse space provided by the above-mentioned Metaverse server, the above-mentioned Metaverse server sends Steps in which the advertisement server requests a user-customized advertisement corresponding to the user’s field of interest; a step in which the advertisement server sends the user-customized advertisement to the above-mentioned Metaverse server; the above-mentioned Metaverse server displays the above-mentioned A step of user-customized advertisement; a step of viewing and displaying the above-mentioned user-customized advertisement while using the above-mentioned Metaverse space by the user terminal; wherein, the recorded user blocks are consensused in the above-mentioned public consensus network and stored in a decentralized manner.

If the time spent staying at a specific location is longer than the preset time, set a corresponding field of interest at the location based on the time information and location information of the user terminal, and record it in the user block.

When there are multiple fields of interest, a weight greater than a preset value is given to the field of interest corresponding to the place where the user terminal stays above the preset time, and the greater the weight, the greater the advertisement display time in the field of interest. long.

Invention effect

The system and method for providing user-customized advertisements in Metaverse using blockchain according to the present invention includes at least one of the following effects.

According to the present invention, advertisements can be provided in Metaverse spaces visited by many people online or virtually, thereby reducing advertising costs.

According to the present invention, by analyzing the action patterns of multiple users, the field of interest of each user is identified, and user-customized advertisements for the field of interest of the user are provided in the Metaverse space, thereby improving the efficiency of advertising.

According to the present invention, while using blockchain technology to reduce the load on the server, multiple different types of open and closed networks are combined into one, and a blockchain technology suitable for each network composition is proposed, so that it is easy to implement different types of systems with multiple networks.

According to the present invention, advertisements displayed using blockchain technology can be provided without forgery and falsification, thereby improving the reliability of advertisement provision.

Description of drawings

Fig. 1 is a structural diagram showing a system for providing user-customized advertisements in Metaverse using blockchain according to an embodiment of the present invention.

FIG. 2 is a structural block diagram illustrating the operation of the system of FIG. 1 .

Fig. 3 is a flow chart illustrating a method for providing user-customized advertisements in Metaverse using blockchain according to an embodiment of the present invention.

Explanation of reference signs:

10: Public Consensus Network

20: Private Consensus Network

110: user terminal 120: first communication network

130: Management Server 140: Database

150: Metaverse server 160: Advertising server

170: Second communication network 180: Advertiser terminal.

Detailed ways

Hereinafter, embodiments of the present invention will be described in detail with exemplary drawings. It should be noted that, when assigning reference numerals to components in each drawing, the same components are given the same reference numerals as much as possible even in different drawings. In addition, in the description of the embodiments of the present invention, if it is judged that the detailed description of related known configurations or functions interferes with the understanding of the embodiments of the present invention, the detailed description will be omitted.

Fig. 1 is a structural diagram showing a system for providing user-customized advertisements in Metaverse using blockchain according to an embodiment of the present invention, and Fig. 2 is a structural block diagram showing the operation of the system in Fig. 1 .

Referring to Fig. 1 and Fig. 2, the system for providing user-customized advertisements in Metaverse using blockchain according to a preferred embodiment of the present invention may include: a user terminal 110, a first communication network 120, a management server 130, a database (DB) 140, Metaverse server 150 , advertisement server 160 , second communication network 170 and advertiser terminal 180 .

At this time, in this embodiment, the user terminal 110, the management server 130, the Metaverse server 140, and the advertisement server 160 can form the public consensus network 10 of the public blockchain network, and the advertisement server 160 and the advertiser terminal 180 can form a private blockchain network. A private consensus network for blockchain networks20.

The user terminal 110 can access the Metaverse server 150 through the first communication network 120 to use the Metaverse space, and can use various contents provided in the Metaverse space.

For example, the user generates his own virtual avatar through the user terminal 110, and sets the virtual avatar to be able to move in the Metaverse space, and can use the virtual reality content provided in the Metaverse space.

To this end, the user terminal 110 may receive commands from the user, and may display the Metaverse Space and the progress of various contents provided in the Metaverse Space.

The user terminal 110 is a portable information communication device whose function can be changed and expanded through an application program, and generally includes a smart phone (smart phone) and a smart pad (smart pad). In addition, it may be a personal computer (PC), a notebook computer, or the like.

The user terminal 110 can not only use various web browsers to access the wireless Internet, but also download and install the application programs required by the user.

When the user terminal 110 in this embodiment is a smart phone, it can also perform the function of a mobile communication terminal, and can add various functions such as a camera and voice recognition.

An application for receiving advertisements in the Metaverse space may be installed in the user terminal 110 . Such an application program can be downloaded and installed from, for example, the Internet, an application store (store), or the management server 130 .

The user terminal 110 may generate a user block and record user information including unique identification information (ID) of the user in the user block. These user blocks can be authenticated by the management server 130 and agreed within the public consensus network 10 for decentralized storage.

A user may access the management server 130 using the user terminal 110 to request and receive a transaction certificate and a registration certificate and store them in an electronic wallet. At this time, the management server 130 can operate together with the Metaverse server 150, or can be operated by a separate operator.

Metaverse server 150 and advertisement server 160 receive authentication through management server 130 and participate in public consensus network 10 .

In addition, the user terminal 110 can measure its own position through the GPS module installed therein, and record its own unique identification information (ID), time information and position information in the user block in real time or every preset period.

The first communication network 120 can handle the wired/wireless communication between the user terminal 110, the management server 130, the database (DB) 140, the Metaverse server 150, and the advertisement server 160, and the second communication network 170 can handle the advertisement server 160 and the advertisement server 160. Wired/wireless communication between merchant terminals 180. The first and second communication networks 120 and 170 may include wired/wireless communication networks such as 3G, 4G, 5G, and the Internet, and local area networks such as WIFI, BLE, Zifeng, and NFC.

The management server 130 may analyze time information and location information according to the movement pattern of the user terminal 110 using information recorded in the user block, thereby extracting the user's field of interest.

At this time, the time information and location information may include information about when and where the user moves and how long he stays there.

The user's field of interest may be extracted based on time information and location information of the user terminal 110 . In particular, statistical information on movement patterns is created by confirming the time and location at which the user terminal 110 moves within a certain period of time. Using this statistical information, frequented and long-stay places can be specified.

For example, as a result of identifying the user's movement pattern for 3 months, if he stays at the football field for 5 hours every Sunday morning, the management server 130 can determine that the location is a specific football field based on the location information sent from the user terminal 110, and It can be extracted that the user is very interested in football based on the time information of staying on the football field. Such spatial information may include GPS coordinates.

In this way, when the user terminal 110 stays at the specific location for more than a set time, the management server 130 may set the field corresponding to the specific location as the field of interest based on the time information and location information of the user terminal 110 .

Correspondingly, the management server 130 may determine that the user's field of interest is football in the above example, and additionally record the user's field of interest in the user block. In this way, additionally recorded user blocks can also be distributed and stored in the public consensus network 10 through the protocol.

The advertisement server 150 may then provide advertisements corresponding to the user's field of interest. For example, in the case of the user of the above example, advertisements related to football may be served.

In another embodiment, the management server 130 may set, based on the time information and location information of the user terminal 110 , the location where the user terminal stays for more than a certain percentage within a set time period as the area of interest. For example, you can set soccer as your area of interest if you spend more than 30 hours on the soccer field in a month.

In addition, it is possible to classify the ranks of the areas of interest by subdividing the dwell time. That is, if the stay time is greater than or equal to the first set time, the field of interest can be set to the first level, and if the stay time is greater than or equal to the second set time and less than the first set time, the field of interest can be set to the second level .

For example, if you spent 50 hours on the soccer field and 30 hours on the golf course in a month, you could set soccer as the highest interest area (Level 1) and golf as the next interest area (level 1). second level). The rating settings for these areas of interest may affect subsequent advertising time. The advertising time of the first level can be longer than that of the second level.

In addition, in another embodiment, when the number of visits to a specific location within a set time period is greater than or equal to a reference value, the management server 130 may also set the field corresponding to the specific location as the field of interest. That is, when the number of visits is large, it is determined that the degree of interest in the visited location is high, and the field corresponding to the visited location can be set as the field of interest.

For example, if the number of mountain climbs in one month is 10 or more than the set number of times, climbing can be set as the field of interest. Thereby, user-customized advertisements about mountain climbing can be provided to the user. Ads about mountaineering can be for mountaineering clothing, shoes, accessories, etc.

In addition, the management server 130 may utilize a geographic information system (Geographic Information System, GIS) to generate user location information as spatial data, and adapt the spatial data to generate map data. That is, this is to provide time information and position information of the user on the map data, and specify the corresponding position on the map data corresponding to the position information.

The management server 130 may store all information processed internally in the database 140 .

The database (DB) 140 can classify and store user terminal 110 information, user ID, user information, time information, location information, map information, and user blocks in user ID categories.

At this time, the database 140 may be located inside or outside the management server 130 . In the case of being located externally, it can be set to link with the management server 130 and store data and information when it is received.

The Metaverse server 150 can provide the virtual Metaverse space, and can also provide various virtual reality contents in the Metaverse space. Therefore, users can use their own user terminals 110 to access the Metaverse server 150, and use the Metaverse space and the content provided in the Metaverse space. At this point, advertisements in Metaverse can be provided in the form of particles.

User information is required when a user uses the Metaverse server 150, but the user information can be replaced by confirming the user block, so there is no need to manage user information separately. At this time, when a user enters the Metaverse space through the user terminal 110, the Metaverse server 150 can confirm the blockchain to confirm the user information of the user.

In addition, the user's avatar information and content usage information can also be stored in the user block, and the user block is scattered and stored in the user terminal 110, the management server 130, and the Metaverse server 150, making forgery impossible.

In this embodiment, when the user uses the Metaverse Space through the user terminal 110, the Metaverse Server 150 can provide advertisements to specific areas in the Metaverse Space.

These advertisements, as user-customized advertisements, may be advertisements corresponding to the user's field of interest. The user-customized advertisement will be described in detail below.

When executing Metaverse and virtual reality content, the Metaverse server 150 confirms that the user has logged in or entered the Metaverse, and requests an advertisement from the advertisement server 160 to display the advertisement at a specific location in the Metaverse.

The Metaverse server 150 can upgrade the user's avatar level by confirming the number of times the user terminal 110 clicks on the advertisement. For example, the clothing and shoes of the virtual avatar of the captain participating as the captain in the virtual meeting room can be upgraded, or accessories such as glasses and watches can be upgraded.

At this time, the number of clicks on the advertisement can be stored in the user block, and after an agreement is reached in the public consensus network 10, the number of clicks on the management server 130 can be distributed and stored after authentication.

By clicking on the advertisement, the user can receive a coupon through the user terminal 110, and the coupon can not only transform into an avatar, but also obtain a discount on the advertised product by accumulating mileage. In this case, the reliability of clicks can be improved because clicks cannot be faked or tampered with.

The advertisement server 160 can receive advertisement entrustment from the advertiser terminal 180 of the advertiser, and send it to the Metaverse server 150 . At this point, the advertisement server 160 may send user-customized advertisements.

Hereinafter, the user-customized advertisement will be described in detail.

The management server 130 analyzes time information and location information on the movement pattern of the user terminal 110 to determine the user's field of interest. A user's field of interest may be recorded in a user block.

When it is confirmed that the user has entered the Metaverse space through the user terminal 110, the Metaverse server 150 can send the user ID together with the user's request to customize the advertisement to the advertisement server 160.

Correspondingly, the advertisement server 160 searches the public consensus network 10 for the field of interest corresponding to the user ID sent from the Metaverse server 150, and extracts a customized advertisement corresponding to the field of interest of the user ID from a plurality of pre-stored advertisements, and Send to Metaverse server 150.

Then, the Metaverse server 150 can display the advertisement in the field of interest in a specific area in the Metaverse space used by the user. Therefore, users can view and confirm customized advertisements corresponding to their fields of interest through the user terminal 110 in Metaverse.

The user can click on the advertisement at the user terminal 110 . The Metaverse server 150 can confirm the number of advertisement clicks and store them in the user block. These user blocks are agreed within the public consensus network 10 and can be stored decentralized after authentication by the management server 130 .

The advertisement server 160 receives advertisement commissions from the advertiser terminal 180 and stores them in an internal storage location (not shown) or a separate database (not shown). In this case, commissioned advertisements may be classified and stored according to categories. These categories may correspond to areas of interest.

The advertisement server 160 may connect the public consensus network 10 and the private consensus network 20 . This is to connect an open network targeting multiple user terminals 110 and a closed network targeting a relatively small number of advertiser terminals 180 into one, and different types of blockchain technologies can be applied to each.

The user terminal 110 includes a corresponding user block, and the block at this time may include the user's field of interest, so as to provide user-customized advertisements in the advertisement server 160 . This block can be confirmed in the advertising server 160 by the user's consent in the public consensus network 10 .

In another embodiment of the present invention, the management server 130 analyzes the field of interest based on the time information and location information of the user terminal 110, and may assign different weights to the field of interest according to the time information. That is, as the dwell time at a particular location increases, higher weights can be given. Especially when there are multiple interest fields of the user, different weights can be assigned to each interest field according to time information.

For example, the result of analyzing the action pattern of the user terminal 110 for one month, if the time to go to the football field is 15 hours, the time to go mountaineering is 10 hours, and the time to go swimming is 5 hours, then it can be obtained through analysis that the field of interest is football , mountaineering, swimming, and since each area of interest corresponds to a different amount of time, football, which takes the most time, is given a high weight, mountaineering is given a medium weight, and swimming is given a low weight.

These weights can be associated with ad slots. The weight information of the user's field of interest category may be recorded in the user block. Alternatively, the management server 130 can send the user ID and other weight information of the field of interest to the Metaverse server 150 .

Correspondingly, when the Metaverse server 150 displays the advertisement corresponding to the user's ID in the Metaverse space, the advertisement associated with football with high weight will be displayed for a longer time, while the advertisement for swimming can be displayed for a shorter time.

In this way, different advertisement display times can be set for user categories according to the degree of interest. Therefore, the effect of the advertisement can be increased by displaying the advertisement time corresponding to the advertisement with a high degree of interest relatively longer.

In addition, as described above, when ratings are set in the field of interest, advertising time can be set according to the ratings. For example, make the advertising time longer for higher-ranked areas of interest.

In addition, higher weighting can be given to higher ranking domains of interest, making the ad run longer.

The advertisement server 160 can recruit a plurality of advertisers through contracts, and form a private consensus network 20 with the advertiser terminals 180 of the advertisers. The advertisement server 160 may become a common node of the public consensus network 10 and the private consensus network 20 .

It can be understood that the public consensus network 10 is an open network that any member of the Metaverse server 140 can participate in, while the private consensus network 20 is a closed network that only advertiser terminals 180 authorized by the advertisement server 160 can participate in.

The contract between the advertiser terminal 180 and the advertisement server 160 can be the display number of the advertisement, that is, the number of advertisement confirmations, and the information of the number of clicks can be distributed and stored in the private consensus network 20, so that the actual number of advertisement impressions cannot be forged or changed.

Fig. 3 is a flow chart showing a method for providing user-customized advertisements in Metaverse using blockchain according to an embodiment of the present invention.

Referring to FIG. 3 , S101 , through the authentication of the management server 130 , the user terminal 110 , the Metaverse server 150 and the advertisement server 160 are given the right to use the public consensus network 10 to generate a user block for the user terminal 110 .

S103, the user terminal 110 may use an internal GPS module (not shown) to measure its own location, and based on its related location information, record it in the user block together with time information and user information including its own ID.

When a user logs in to the management server 130 and the Metaverse server 150 through the user terminal 110 , the user information stored in the user block corresponding to the user terminal 110 can be used to log in.

S105, the management server 130 may analyze the user's field of interest based on the time information and location information of the user terminal 110 . Specifically, when the user terminal 110 stays at the specific location for a set time or longer, the field corresponding to the specific location may be set as the field of interest.

For example, if you spend more than a certain amount of time on a soccer field in a month, you can set soccer as your area of interest. These areas of interest can be agreed upon in the public consensus network 10 and recorded in user blocks.

In addition, in another embodiment, when the number of visits to a specific location within a set time period is greater than or equal to a reference value, the management server 130 may also set the field corresponding to the specific location as the field of interest. This takes into account that the higher the level of interest the more visits will be made within the set time.

S107. Send the information indicating that the user terminal 110 has logged into the management server 130 and/or the Metaverse server 150 to the advertisement server 160, and the advertisement server 160 confirms the user block corresponding to the logged-in user terminal 110. If there is a consensus, the The user-customized advertisement corresponding to the user's field of interest is sent to the Metaverse server 150 .

In another embodiment, in the step S107, the Metaverse server 150 may also confirm the login information of the user terminal 110, and request a user-customized advertisement corresponding to the user's field of interest from the advertisement server 160, and the advertisement server 160 will send the user The customized advertisement is sent to the Metaverse server 150.

The user terminal 110 logging in to the Metaverse server 150 may mean that the user has entered the Metaverse space provided by the Metaverse server 150 through the user terminal 110 .

S109, the Metaverse server 150 can display the received user-customized advertisement in the set area in the Metaverse space. S111, therefore, the user can utilize the user terminal 110 to watch advertisements displayed in the Metaverse Space while using the Metaverse Space. These views can also be viewed by clicking on an ad.

The information on the number of times an advertisement is clicked can be recorded in the user block, and it can be decentralized and stored in the public consensus network 10 through consensus.

Here, the process of distributing the user information of the user terminal 110, the login information, the number of advertisement clicks, etc. into the public consensus network 10 will be described.

The management server 130 provides authentication according to the request of the user terminal 110 . The authentication certificate may include a one-time transaction authentication certificate, that is, a transaction authentication certificate used every time a transaction is generated in order to protect the privacy of the user terminal 110 , and a login authentication certificate used to prove the identity of the user terminal 110 .

The user terminal 110 can join the Metaverse server 150 as a member and provide the result to the management server 130 to issue a login certificate, and it can be set to be used during the membership period without updating.

When there is a change in user information, a change in login information on the Metaverse server 150 , and a change in the number of clicks on advertisements, the management server 130 can issue a transaction authentication certificate at the request of the user terminal 110 .

The transaction authentication certificate issued in this way is stored in the electronic wallet of the user terminal 110, and it is issued in the ledger of the public consensus network 10 as a consensus network. The management server 130 verifies the changes in each ledger and stores the results in a separate state.

The above describes the case where all the structural elements constituting the embodiments of the present disclosure are combined into one or operated in combination, but it does not mean that the present disclosure must be limited to these embodiments. That is, as long as it is within the scope of the purpose of the present disclosure, all of its constituent elements can be selectively combined and operated in one or more. Moreover, for the above-mentioned terms such as "comprising", "consisting" or "having", unless there is a specific contrary statement, the relevant structural elements are meant to be internal, and it should be understood that other structural elements are not excluded, but also Other structural elements may be included.

Claims (7)

1. A system for providing customized advertisements in a metaverse space using blockchains, comprising:

the user terminal generates time information and position information according to the movement and uses the metaboundary space to watch the advertisements provided in the metaboundary space;

a management server which sets an interest field of a user corresponding to a specific location based on time information and location information of the user terminal when the user terminal stays at the specific location for a set time or longer;

an advertisement server providing a user-customized advertisement corresponding to the field of interest;

the metaboundary server provides the metaboundary space, receives the user customized advertisement corresponding to the user interest field from the advertisement server, and displays the user customized advertisement at a position set in the metaboundary space;

the user terminal, the management server, the meta boundary server and the advertisement server form a public consensus network, a user block corresponding to the user terminal is generated in the public consensus network, the time information, the position information, the interest field and the user customized advertisement are recorded in the user block, and the recorded user block is agreed and stored in the public consensus network in a distributed mode.

2. The system for providing customized advertisement in meta-boundary space using block chain according to claim 1,

and in the set time, giving a weight to the interest field according to the place and time where the user terminal stays, and differently setting the display time of the advertisement provided in the meta-boundary space according to the given weight.

3. The system for providing customized advertising in meta-boundary space using blockchain according to claim 2,

and when the interest areas are multiple, giving a weight larger than a preset value to the interest area corresponding to a place where the stay time of the user terminal is more than the preset time, wherein the advertisement display time of the interest area is set to be longer when the weight is larger.

4. The system for providing customized advertising in meta-boundary space using blockchain according to claim 1,

the advertisement server and the advertiser terminal become nodes forming a private consensus network, and the watching times of the advertisement delegated by the advertiser terminal are agreed and stored in the private consensus network in a dispersed manner.

5. A method for providing customized advertisements in meta-space using blockchains, comprising,

a step of generating a user block corresponding to a user terminal in a public consensus network composed of the user terminal, a management server, a meta boundary server, and an advertisement server, and recording time information and position information of the movement of the user terminal to the user block;

a step in which, when the user terminal stays at a specific position for a set time or longer, the management server sets an interest field of the user corresponding to the specific position based on the time information and the position information of the user terminal, and records the interest field in the user block;

when the user terminal enters a metaboundary space provided by the metaboundary server, the metaboundary server requests the advertisement server for a user customized advertisement corresponding to the user's field of interest;

a step in which the advertisement server transmits the user-customized advertisement to the metaverse server;

a step of displaying the user customized advertisement at a specific position in the metaword space by the metaword server;

a step in which the user terminal views the displayed user-customized advertisement while using the meta-space;

wherein the recorded user blocks are agreed and stored in a distributed manner in the public consensus network.

6. The method for providing customized advertisement in meta-boundary space using blockchain according to claim 5,

and setting a corresponding interest field at the position based on the time information and the position information of the user terminal under the condition that the time staying at the specific position is more than the preset time, and recording the interest field in the user block.

7. The method for providing customized advertisement in meta-boundary space using blockchain according to claim 5,

and when the interest areas are multiple, giving a weight larger than a preset value to the interest area corresponding to a place where the staying time of the user terminal is more than the preset time, wherein the larger the weight is, the longer the advertisement display time of the interest area is set to be.

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