JP2022031237A - Virtual space communication system, virtual space communication method and program - Google Patents

Abstract

To provide a virtual space communication system that can be used easily by users, and allows them to communicate with each other therein.SOLUTION: A plurality of participating users shares, on respective terminals, two-dimensional virtual space on an administrator terminal connected with the terminals via a network. The participating users operate their own avatars in the two-dimensional virtual space to exchange information. When the participating users access the administrator terminal, avatars of the participating users are displayed in the two-dimensional virtual space, and the avatars of the users can be moved to any positions in the two-dimensional virtual space by the operations of the participating users. In addition, a communication area where a conversation can be held between the participating users is provided. Each of the participating users can have conversation with an avatar of another participating user in the communication area by placing an own operating avatar so as to be adjacent to an avatar of the another participating user in the two-dimensional virtual space, and then double-clicking the own operating avatar.SELECTED DRAWING: Figure 3

Description

There is an application for exception of loss of novelty

The present invention relates to a virtual space exchange system, a virtual space exchange method and a program.

With the spread of the new coronavirus epidemic worldwide in 2020, many people are forced to refrain from meetings and events.
For this reason, conferences and the like are forced to be held on the web, and a web conferencing system in which a user connects each terminal (usually a personal computer) with a network and the user exchanges information in real time is widely used. There is. The web conferencing system has no risk of coronavirus infection, and users in remote locations can hold meetings in a virtual space on the network while looking at each other's faces on the screen. You can proceed with the meeting by chatting with text and sharing electronic files on the screen.

Web conferencing can proceed with the existing system as described above.
However, existing formats such as poster sessions and solo exhibitions, in which the user arbitrarily searches for content of interest and asks the poster presenter (creator) or the creator of the exhibit a question about the content, are existing. Difficult to do with a web conferencing system.

Non-Patent Document 1 describes a virtual society and a poster session using cluster. The virtual society and poster session using the cluster of Non-Patent Document 1 allows participants in remote areas to hold the society and poster session as if they were in the real space from a first-person three-dimensional viewpoint.

On the other hand, the virtual society and poster sessions using the cluster of Non-Patent Document 1 also have the following problems. Since the software used here is a three-dimensional space, there is a lot of visual information, so a high-resolution display (head-mounted display (HMD)) is required, and peripheral devices need to be prepared, so anyone can feel free to use it. It is not possible to participate in a virtual poster session. Also, it is unclear how far you can hear your conversation among the people in the field of view of the virtual space, and there is a lot of noise. Further, since the processing operation is not light and the operation is not intuitive, there is a problem that it is difficult for a user who has little knowledge of information processing equipment from the technical and psychological aspects.
In addition, there is a problem that there is a risk of leakage of the content to be kept secret because there is no countermeasure when the content of the conversation is to be kept secret.

Journal of the Virtual Reality Society of Japan Vol. 25, No. 2, June 2020

The present invention is to solve the current problem of virtual space exchange and to provide a virtual space exchange system that is easy for users to use and can interact with each other.

The present invention develops and provides a virtual session in which many participating users can intuitively enjoy a virtual session, and can enjoy conversation and exchange of opinions, with a light processing operation and no specialized equipment or knowledge. Is.

That is, in the present invention, a plurality of participating users share a two-dimensional virtual space constructed on an administrator terminal connected via a network with the participating user terminals, and the plurality of participating users are in the two-dimensional virtual space. In a two-dimensional virtual space exchange system in which information is exchanged by operating each person's avatar, the administrator terminal is accessed by the participating user, and the participating user's avatar is displayed on the participating user terminal. Then, by operating the participating user terminal of the participating user, the avatar operated by the participating user can be moved to an arbitrary position in the two-dimensional virtual space, and a conversation is made between the two-dimensional virtual space and the participating user. By providing a providing means for providing an exchange area where the participants can interact with each other, and the participating user performing a predetermined operation by placing the avatar operated by the participating user adjacent to the avatar of another participating user in the two-dimensional virtual space. A control means that controls so that conversation can be performed in the exchange region,
It is characterized by having.

According to the present invention, the processing operation is light, many participating users can intuitively enjoy the virtual session without specialized equipment or knowledge, there is no limit on the number of conversation participants, and conversation is appropriate. You can keep the contents secret and enjoy exchanging opinions with peace of mind.

It is a figure which shows the system structure of the virtual session system which concerns on this invention. It is a figure which shows an example of the hardware composition of the administrator terminal 1000 in embodiment of this invention. It is a figure which shows an example of the virtual poster session screen in embodiment of this invention. It is a figure which shows an example of the virtual poster session screen which displays the virtual poster in embodiment of this invention. It is a figure which shows an example of the virtual poster session screen at the time of having a conversation between the participating users in the embodiment of the present invention. In the embodiment of the present invention, an example of a virtual poster session screen of a participating user in a conversation when a participating user who wants to participate in the conversation asks the participating user in the conversation by activating the button during the conversation. It is a figure which shows. It is a figure which shows an example of the poster list page screen which is displayed when the poster icon is used in embodiment of this invention. It is a figure which shows an example of the avatar selection screen displayed on the My Page when the My Page icon is used in the Embodiment of this invention. It is a figure which shows an example of the poster setting screen displayed on the My Page when the My Page icon is used in the Embodiment of this invention. In the embodiment of the present invention, it is a sequence of registration for participation and creation of an encryption key in a virtual poster session. In the embodiment of the present invention, it is an encryption sequence when the encryption button 212 is used in a virtual poster session. In the embodiment of the present invention, it is a flowchart which performs a normal conversation process. In the embodiment of the present invention, it is a flowchart which performs a conversation process when the person to be talked about uses a button during a conversation in a conversation. In the embodiment of the present invention, it is a flowchart which performs a conversation process using a virtual poster in a conversation.

<First Example>
Hereinafter, the virtual session system (virtual space exchange system) of the present embodiment will be described in detail with reference to the attached drawings. Here, a poster session will be described as a preferred example, but any invention of the present application can be used as long as it has an exhibit such as a poster or a work of art, or a plurality of participating users interact in a virtual space. It can also be applied to such things.

<System configuration example>
FIG. 1 is a system configuration diagram showing an example of a virtual session system according to the present invention. The administrator terminal 1000 suitable for the virtual session system of the present invention is a device that provides a virtual session service, has a Web server function, receives access from a Web browser included in the participating user terminal 2000, and provides the service. It is a server to do. Further, the administrator terminal 1000 authenticates the user based on the authentication information transmitted from the participating user terminal 2000, and provides a virtual session service when the authentication is permitted. Specifically, it is a personal computer computer terminal having a Web server function, having a network communication function, and capable of data communication via a cloud or a LAN (local area network). Alternatively, the administrator terminal 1000 may be a Web server itself separated from the administrator terminal (personal computer computer terminal), or may be a cloud service (Amazon (trademark) Web Services, etc.) itself that does not specify a specific hardware configuration. It is also possible to use a virtualized environment (Docker (trademark), etc.).

The administrator terminal 1000 is a server for realizing a virtual session using a web browser such as a cloud. A plurality of participating user terminals 2000A, 2000B, and 2000C can access a virtual session associated with the administrator terminal 1000 by registering participation in the virtual session in the administrator terminal 1000 in advance with authentication information (Uniform). A virtual session can be performed by accessing the inside of the virtual session from the Device Locator).

The participating user terminals 2000A, 2000B, and 2000C are personal computers, tablet terminals, smartphone terminals, and the like operated by participating users (including presenters (creators, exhibitors, exhibitors)) who use the virtual session system. In the virtual session system of the present embodiment, the explanation will be given by taking a conversation using a chat system as an example. However, in the case of video and audio conversation, the case of transmitting and receiving audio by an imaging device such as a camera. Uses a microphone and speaker connected or built-in.
In the present invention, the conversation includes all conversations using text information such as chat, and video information, voice information, and the like that can communicate with the other party.

<Hardware configuration example>
FIG. 2 is a diagram showing a hardware configuration when the administrator terminal 1000 is used as a personal computer. As shown in FIG. 2, the administrator terminal 1000 has a central control unit 1001, a storage device 1002 such as a RAM (Random Access Memory), a ROM (Read Only Memory), an input control unit 1003, and a peripheral device via the system bus 1010. The control unit 1004 and the communication I / F control unit 1005 are connected.
The central control unit 1001 is a CPU (Central Processing Unit) or the like, and collectively controls each device and control unit connected to the system bus 1010. The administrator terminal can be replaced with a cloud service (Amazon Web Services, etc.) or a virtual environment (Docker) that does not specify a specific hardware configuration.

The storage device 1002 functions as a main memory, a work area, and the like of the central control unit 1001. The central control unit 1001 stores programs and the like necessary for executing processing in the storage device 1002 of the administrator terminal 1000, and logs in to and accesses the URL of the virtual session created in the participating user terminals 2000A, 2000B, 2000C. Then, the participating user enters the URL and executes the program on the web browser to realize various operations.

The storage device 1002 includes a BIOS (Basic Input / Output System) and an OS (Operating System), which are control programs executed by the central control unit 1001, and a computer-readable and executable program for realizing this data destination designation method. Holds various data (including data tables).

The input control unit 1003 controls input from an input means such as a keyboard or a mouse. The peripheral device control unit 1004 exchanges video and audio between participating users when an arbitrary imaging device, an imaging means such as a microphone and a speaker, and an audio means are connected when having a conversation by video and audio. It controls.

The communication I / F control unit 1005 connects to a communication line and controls transmission / reception of data. In the case of the administrator terminal 1000, the communication I / F control unit 1005 also controls transmission / reception of data via a LAN and control of transmission / reception of data via a public line such as the Internet.
The administrator terminal 1000 receives access from the participating user terminal 2000 and provides a service via the communication I / F control unit 1005, or authenticates the user based on the authentication information transmitted from the participating user terminal 2000. It does and provides virtual session services if authentication is allowed.

The administrator who uses the administrator terminal 1000 is an administrator of the entire virtual session system, registers, changes, and deletes participants, and makes various settings related to the virtual session system.
Further, the administrator registers and authenticates the authentication information, for example, the user's e-mail address as the user ID in the administrator terminal 1000, and the registered and authenticated participants are the participating user terminals 2000A and 2000B. , 2000C accesses the URL associated with the administrator terminal 1000.

The presenter (creator) user is a user who presents an exhibit (here, including posters, exhibits, etc., regardless of image or video) in a virtual session, and is virtual to the administrator terminal 1000. You can make reservations and changes for exhibits and participation in the session, and you can also participate in the reserved virtual session. The administrator can present the exhibits in the virtual session in the same way as the participating users.

The presenter (creator) user informs the administrator terminal 1000 that the exhibit will be exhibited in addition to the registration of the participants, so that the administrator informs the administrator terminal 1000 of the exhibit (creator) of the presenter. Register the number. The presenter (creator) user accesses from the URL provided by the administrator terminal 1000, and registers his / her own exhibit on the user poster (exhibit) page 103B described later, so that the exhibit registered by the administrator is exhibited. Exhibits can be exhibited at the item number. Also, if you want to interrupt the exhibition of the exhibit, you can delete it at any time.

Participating users are users who participate in the virtual session, and the virtual session reserved by accessing the administrator terminal 1000 from the URL provided by the administrator terminal 1000 by registering and changing the participants of the virtual session. You can participate in. The administrator can participate in the virtual session in the same way as the participating users. Further, the representative of the participating user group can collectively register the participation of the user group by sending the e-mail address of the user group, which is the authentication information, to the administrator terminal 1000.

In addition, the administrator can aggregate the results of the virtual sessions sent to the administrator terminal 1000 and voted by the voting page 103C described later, and send the results to all participating users. In addition, the opinions written in the poster (exhibit) chat section 302 of the poster (exhibit) comment area 301, which will be described later, may be sent to the individual presenter (creator) user.

<Virtual session screen>
The virtual session screen according to the embodiment of the present invention will be described with reference to FIG. 3, and here, a virtual poster session screen using a poster as an exhibit will be described as an example. FIG. 3 shows a virtual poster session system displayed when a participating user registers for participation in a virtual session and logs in with a registered account (for example, an e-mail address) from a URL sent from the administrator terminal 1000. This is the screen of the poster page. The screen mainly consists of a poster session area (session area) 100 on the upper left and an exchange area 200 on the upper right from the center.
The virtual session of the present invention is performed on a two-dimensional virtual space screen from a third person perspective.

・ Poster session area 100
The poster session area 100 is displayed on a two-dimensional virtual space screen composed of a plurality of squares. The number of squares is not particularly limited. When the participating user logs in, his / her own user avatar 1 is created by randomly assigning an avatar, and is displayed in the poster session area 100 together with the name code (user display name 10) registered at the time of login. Actually, the user display name is displayed on all avatars, but in FIG. 3, the user display name 10 is shown only on the user avatar 1. The movement operation key 2 is displayed at the lower right of the poster session area 100, and the user avatar 1 clicks the poster session area 100 by clicking the up / down / left / right arrows by a predetermined operation, for example, by clicking the arrow. Depending on the number, you can freely move the squares in the direction of the arrow.

Further, as another moving method within the poster session area 100, by performing a predetermined operation, for example, double-clicking an arbitrary cell on the poster session area 100 or the poster session entire area 400 described later, the cell is set as the final destination. It is also possible to automatically calculate the shortest route and move at high speed via the calculated shortest route. The shortest route from the current square to the final destination square can be calculated by expressing the adjacent squares in the venue as an undirected graph on the user terminal and using the Dijkstra method or the like. As the shortest route, a route that avoids the virtual obstacle 5 and other participating user avatars described later is calculated. This technique is useful when going away from your current location.

In one of the squares of the poster session area 100, a virtual poster (exhibit object) 3 represented by a signboard character is provided together with the name code of the poster creator or the poster number (exhibit code) 30. ,Is displayed. Further, in the adjacent squares of the virtual poster 3, a virtual poster (exhibit) appearance range 4 indicated by diagonal lines and a virtual obstacle 5 indicated by a character such as a mountain are provided. When the participating user operates the movement operation key 2 to invade the virtual poster appearance range 4, the exchange area 200 is reduced, the virtual poster display area 300 appears as shown in FIG. 4, and is registered by the poster creator. The contents of the poster will be displayed. The virtual poster (exhibit) display area 300 will be described later. At the same time, the virtual poster comment area 301 appears at the lower right. In the virtual poster (exhibit) comment area 301, the poster (exhibit) chat section 302 and the poster (exhibit) comment transmission button 303 are displayed.

Participating users can see the poster displayed in the virtual poster display area 300. If you want to write an opinion about the poster, you can write the opinion by writing in the poster chat section 302 of the virtual poster comment area 301 by the input means. The written opinion is sent from the administrator to the poster creator during or after the virtual poster session. If the participating user wants to ask a question to the poster or the poster creator, when the poster creator's avatar is nearby, it is adjacent to the poster creator's avatar, and by performing a predetermined operation, for example, double-clicking. You will be able to talk and ask questions. The conversation method will be described later. When the poster creator's avatar is not nearby, the character of the virtual poster 3 can be talked by a predetermined operation, for example, by double-clicking. This conversation method will also be described later.

Participating users can freely move within the poster session area 100 by operating the movement operation key 2, but cannot move the location of the virtual obstacle 5. The virtual obstacle 5 may not be used, but a flow line can be created in the poster session area 100 when many questions are expected to the creator of a specific poster.

When the participating user operates the movement operation key 2 to exit the virtual poster appearance range 4, the virtual poster display area 300 disappears and the screen returns to the initial screen shown in FIG.
Participating users can see a favorite poster from the virtual posters 3 displayed in the poster session area 100 by operating the movement operation key 2 or the like to enter the virtual poster appearance range 4 of another virtual poster 3. be able to.

Participating users can talk with other participating users at any place in the poster session area 100, not limited to the virtual poster appearance range 4.

・ Exchange area 200
The exchange area includes a conversation history unit 201 and a chat unit 202. In the conversation history unit 201, a conversation with another participating user is displayed in a conversation using chat. In addition, when the camera and microphone of the terminal are used, the video screen is displayed.
The chat unit 202 is provided with a chat input unit 211, four buttons, an encryption button 212 indicated by a key character from the left, a transmission button 213, a withdrawal button 214, and a conversation button (conversation restriction means) 215. The chat input unit 211 can input the content to be talked by the input means, and transmit the input content by a predetermined operation, for example, clicking the transmission button 213 or inputting a predetermined key. The encryption button 212 can be used when it is desired to encrypt the conversation content so that it cannot be read by an external device or the like. When encryption is valid, the conversation is encrypted using the public key of another participating user who receives it. When there are a plurality of participating users to receive, the conversation is encrypted for each receiver and transmitted to the administrator terminal 1000. This realizes end-to-end encryption in which the contents of the conversation cannot be read even on the administrator terminal 1000. In encryption, a method such as elliptic curve Diffie-Hellman key sharing using the private key of the participating user and the public key of the recipient may be used. Further, the above encryption can be applied not only to character information but also to images, sounds, moving images and the like. The details of encryption will be described later. The send button 213 is used when transmitting the content input to the chat input unit 211 to the participating users who are talking. The exit button 214 is used to end the conversation with the participating user who is having a conversation. The in-conversation button 215 is used when it is desired to prevent other users from entering the conversation other than the user who is currently in conversation. The encryption button 212, send button 213, exit button 214, and in-conversation button 215 are displayed as inactive thin buttons when moving or not talking, and become active when talking. , Displayed as a dark button and ready to use.
The encryption button 212 encrypts the conversation content of the participating users used at the time of transmission.
The in-conversation button 215, if used by one of the participating users participating in the conversation, applies to all participating users in the conversation.
It should be noted that the conversation button 215 is desired to be used by one of the participating users, and when a predetermined operation is performed, for example, a click is made, a button requesting consent appears in the conversation history unit 201 of the participating user during another conversation, and another conversation appears. With the consent of the participating users inside, it may be effective with the agreement of all who are active and participating in the conversation.
The conversation method will be described below.

-Conversation method Fig. 5 shows the screen of the virtual poster session system in a state of conversation. When a participating user wants to talk with another participating user, he / she makes his / her own user avatar 1 adjacent to the avatar 11 of the other user who wants to talk. If you double-click the avatar 11 of another participating user in the adjacent state, your own user avatar 1 and the avatar 11 of the other participating user are surrounded by a conversation border (conversation group display) 210 and are having a conversation. The range is specified. In FIG. 5, the conversation border 210 is represented by a border, a broken line, or the like for each group, but in reality, colors are used. The color of the conversation border 210 is automatically selected from about 10 kinds of colors for each conversation group so as not to overlap as much as possible within the same poster session area. This makes it possible to clearly distinguish nearby conversation groups. In this state, the transmission button 213 and the exit button 214 provided in the chat unit 202 of the exchange area 200 change to the active state (dark button display) as shown in FIG. The send button 215 and the withdrawal button 216 of the other participating users who are requested to have a conversation also change in the same manner. When they are in that state, it is displayed in the left corner of the exchange area 200 that the conversation has started. In that state, the content to be talked to in the exchange area 200 is entered in the chat unit 202, and the entered content is transmitted by a predetermined operation, for example, clicking the transmission button 213 or inputting a predetermined key. Can be done. Upon transmission, the entered contents are displayed together with the registered name of the participating user in the exchange area 200 of oneself and the exchange area 200 of another participating user in conversation to which the transmission is made.
Other users also fill in the reply and send it, so that the reply written in the exchange area 200 is displayed.
In this way, you can talk to any other participating user.
Further, the input of the chat unit 202 may be in the form of providing a voice input icon (not shown) and clicking the icon to input characters by voice.

When the participating user wants to end the conversation with another participating user who is having a conversation, he / she clicks the exit button 212 provided in the chat unit 202. When the participating user clicks the withdrawal button 212, the conversation history unit 201 of the participating user who was talking with the participating user displays that the conversation has been withdrawn, and the send button 213 and the withdrawal button 214 from the conversation are initially displayed. As shown in FIG. 3, it returns to the inactive state (light-colored button display). It should be noted that the participating users and other participating users who are having a conversation cannot move during the conversation. When either of them clicks the withdrawal button 21, the movement operation key 2 can be operated and can be moved again.

It is also possible to talk with a plurality of participating users on the virtual poster session screen. When it is desired to talk with a plurality of participating users, the user avatar 1 performs a predetermined operation, for example, double-clicking the participating avatars in the adjacent 4 squares, so that the avatars in conversation are surrounded by the conversation border 210 and the group thereof. You can have a conversation within.
Alternatively, when a plurality of adjacent participating users are talking, the user avatar 1 of the user is adjacent to the avatar of one of the participating users who are talking, and the avatar of the adjacent participating user is operated by a predetermined operation, for example. , Double-click to allow multiple participating users in a conversation to join the conversation.
However, if a plurality of participating users in a conversation are talking with the in-conversation button 215 that restricts the conversation activated, they cannot join the conversation.

The in-conversation button 215 is used for the purpose of limiting conversation participants when the participating user who is having a conversation does not want to be interrupted by another participating user in the middle of the conversation. With this function, there is no possibility that other participating users will inadvertently hear a conversation that they do not want to be heard by anyone other than a specific participating user.
When the conversation button 215 is activated, the participating user group during the conversation is displayed to indicate that the conversation button is in use, or the conversation border 210 is displayed by a special wall-shaped character or the like, and the conversation button 215 is displayed. It may indicate that it is in use.

FIG. 6 shows the participating user in conversation when the participating user who wants to participate in the conversation places the user avatar 1 adjacent to the avatar 11 of the participating user in conversation by activating the button 24 during conversation and requests the conversation. It is a figure of a virtual poster session screen.
When the participating user who tried to have a conversation activates the conversation button 24 and is in a conversation, the user avatar 1 is adjacent to the participating user's avatar 11, and the avatar 11 is operated by a predetermined operation, for example, even if the avatar 11 is double-clicked, the send button is displayed. 213, the exit button 214 is not active. Instead, the conversation history section 201 says, "I'm currently talking. Please wait. ] Is displayed. On the other hand, as shown in FIG. 6, the small icon 220 of the adjacent user avatar 1, the small consent icon 221 and the small non-confirmation icon 222 are displayed in the conversation history unit 201 of the participating user who has been double-clicked, and are adjacent to each other. It is displayed that the user avatar 1 is requesting a conversation. Participating users in a conversation can check the user avatar 1 on the screen, and if there is no problem in joining the conversation, deactivate the in-conversation button 215 and double the icon of the adjacent user avatar 1. By joining the click conversation or clicking the consent small icon 221, you can join the conversation without deactivating the in-conversation button 215. The display location of the small icon 220, the consent small icon 221 and the disapproval small icon 222 of the user avatar 1 is not limited to the conversation history section 201 of the participating user who was double-clicked, and is displayed at an arbitrary position on the virtual poster session screen. You may.

If you do not want to participate in the current conversation, click the small disapproval icon 222 to display the conversation history section 201 of the participating user of user avatar 1 "See you later. ], You can put a refusal. After that, after the current conversation ends, after leaving the current conversation with the exit button 214, the conversation is started adjacent to the user avatar 1 as usual, or the user avatar 1 displayed in the conversation history unit 201 is small. By double-clicking the icon 220, you can have a conversation even if they are not adjacent to each other. When the small icon 220 of the user avatar 1 displayed on the conversation history unit 201 is double-clicked, the participating user avatar 11 may be allowed to move to the adjacent square of the user avatar 1 instantaneously.

In the present embodiment, the conversation using chat has been described, but by using the camera and microphone of the terminal of the participating user, the conversation by voice and the face of the participating user like a web conference are displayed in the exchange area 200. You can have a conversation in the form of being. When using a camera or microphone, click the send button 213 to display a video of the participating users in conversation in the AC area 200, and click the exit button 212 to disconnect the video. May be good.

-Virtual poster display area 300
Next, the virtual poster display area 300 will be described again with reference to FIG.
As described above, when the participating user's avatar 1 enters the virtual poster appearance range 4, the poster registered in the virtual poster display area 300 is displayed.
The name of the poster presenter (creator) is displayed above the virtual poster display area 300.
The poster can be enlarged by performing a predetermined operation, for example, clicking or scrolling the mouse on the virtual poster display area 300. Participating users can know the contents in detail by looking at the poster displayed in the virtual poster display area 300.

Participating users can ask questions about the contents of the poster by talking with the poster creator as explained in the conversation method if they are adjacent to the poster creator's avatar while looking at the poster in the virtual poster display area 300. Can be done. Further, when a pointer icon (not shown) is provided in the conversation history unit 201 and the pointer icon is clicked to activate the conversation history unit 201, the pointer appears in the virtual poster display area 300 of the participating users participating in the conversation, and the virtual poster display area 300 appears. You may have a conversation while showing any part of the poster. When using the pointer, the hand may become unusable due to the operation of the mouse or the like, so the pointer may be linked with the transmission button 213 using the camera or microphone. In addition, the name of the participating user is displayed near the icon, or the color and shape of the icon change for each participating user so that the displayed icon does not become unclear who the icon is. It may be in the form of displaying which of the participating users corresponds to at any place. Further, when a comment is made on the poster, the comment can be written by writing in the poster chat section 302 of the virtual poster comment area 301 at the lower right. Poster authors can be notified on the system or by email when a comment is added to their poster.

When the participating user wants to talk to the poster creator, but the poster creator's avatar is not nearby, the virtual poster 3 represented by the character of the signboard is operated by a predetermined operation, for example, double-clicking. Then, when the creator of the poster is not in a conversation, the send button 213 and the exit button 214 are activated and the conversation becomes possible. On the other hand, when the poster creator is in a conversation, even if the poster creator does not activate the conversation button 215, the conversation history unit 201 says "Currently in conversation. Please wait. ] Is displayed. On the other hand, the conversation history section 201 of the creator of the poster who double-clicked his / her own poster displays "poster" and a small avatar icon 220 of the user who wants to have a conversation, and is requested to have a conversation about the poster. Is displayed. After the current conversation, the poster creator can answer the question by double-clicking on the avatar small icon 220 of the user who wants the conversation. By double-clicking the small avatar icon 220 displayed in the conversation history unit 201, the user avatar of the poster creator may be able to instantaneously move to the adjacent square of the avatar of the participating user who wants to have a conversation.

In a real-life poster session, if the poster creator isn't around the poster, they can't ask questions even if they're interested, and the poster creator ends up unaware that there was something they were interested in. In a virtual poster session, you can ask the poster creator a question without such a thing, and the poster creator can also answer the question.

Further, even if the poster creator does not want to have a conversation, when he / she wants to describe his / her opinion and impression on the poster, he / she can write his / her opinion in the poster chat section 302 of the virtual poster comment area 301 described above.

-Other functions As shown in FIGS. 3 to 6, the poster session area 100 has a small icon in the upper right corner, and from the left, the poster session entire area display icon 101, the poster list icon 102, the user setting icon 103, and the logout icon 104. Is provided.

-Poster session whole area display function When the poster session whole area display icon 101 is clicked, the poster session whole area 400 is displayed at the lower left of the poster session area 100 as shown in FIG. In the poster session entire area 400, the area currently displayed in the poster session area 100 is displayed in the display frame 401, and it is possible to grasp the position of the user in the entire area. In addition, when the participant list is sent from the administrator on the poster list page described later, the participant can click on the list to confirm the location of the participant user in the participation list. You may be able to quickly find out where you are in the poster session area 100 by notifying you of the position by blinking or the like.
By clicking the poster session whole area display icon 101 again, the poster session whole area 400 can be hidden.
When the user avatar 1 enters the virtual poster appearance range 4, the entire poster session area 400 automatically changes to the virtual poster comment area 301 described above.

-Poster list function When the poster list icon 102 is clicked, the poster list page shown in FIG. 7 is launched as a separate page. On the poster list page, the poster list posted in the poster session area 100 and the participant list of the poster session are displayed.
In the poster list, the number of the virtual poster 3 installed in the poster session area 100, the coordinate position of the poster in the poster session area 100, the poster presenter name (creator name), and the poster title are displayed, and what kind of content is displayed. You can see at a glance where the poster is located in the poster session area 100.
Further, in the poster session participant list, the names, affiliations, coordinate positions of the current poster in the poster session area 100, and the login state of the participating users participating in the virtual poster session are shown. Participating users can see where the interested participating users are, whether they are logged in or not, by looking at the participant list, without wasting a search in the virtual poster session area. Also, you can know that you are logged out and cannot ask questions. Also, by clicking the participant list, it is possible to display the location of the entire poster session area by blinking or the like.
You can return to the virtual poster page by closing the poster list page, or you can return to the virtual poster page by clicking the virtual poster page while the poster list page is open.

-User option function When the user setting icon 103 is clicked, My Page, which is the setting page of the logged-in user shown in FIG. 8, is launched as a separate page. In My Page, user information, a display name displayed on the avatar, and an Edit button are provided, and further, an avatar page 103A, a user poster page 103B, a voting page 103C, and an encrypted page 103D are provided.

The Edit button is a button that can change the setting of the poster session area 100 of the user. When the Edit button is clicked, the OK button is displayed in place of the Edit button, and the display name 10 displayed on the avatar can be entered, and the display name can be changed. Further, the user avatar 1 in the poster session area 100 of the user can be changed on the avatar page 103A.

As for the avatar page 103A, the avatar page 103A of FIG. 8 is displayed by clicking the avatar 103A shown in FIG.
A plurality of avatars are provided on the avatar page 103A. The user can change the avatar by clicking the avatar of his choice while clicking the Edit button. When the change is completed, the user's display in the poster session area 100 can be changed by clicking the OK button.
It should be noted that the avatar can be used by the user by sending the avatar personally created by the user to the administrator in advance and registering the avatar as being usable only by the user sent by the administrator. ..

The user poster page 103B is switched to the user poster page 103B shown in FIG. 9 by clicking the poster 103B of FIG. The user poster page 103B is provided with a poster drag and drop area and a poster image deletion button at the bottom. The user (poster presenter (creator)) can display the poster for presentation created in the virtual poster session in the virtual poster display area 300 as a virtual poster by dropping it in the poster drag and drop area.

In addition, when the user (poster presenter (creator)) notices that there is a correction part such as an error in the poster, he / she can correct it by clicking the poster image deletion button.
In a virtual poster session, the user (poster presenter (creator)) can modify the poster even during the virtual poster session, although it cannot be modified in the actual poster session.
While the user (poster presenter (creator)) is modifying the poster, only "not uploaded" is displayed in the virtual poster display area 300.

On the voting page 103C, a voting screen (not shown) is displayed by clicking the voting 103C in FIG.
On page 103C, you can vote and write your opinion about the poster you want to evaluate in the virtual poster session.
The voting content is encrypted and transmitted to the administrator terminal 1000, and a blind signature is given on the administrator terminal. Then, the given blind signature and the plaintext voting content are sent to the administrator via an anonymous communication channel as a set. As the anonymous communication path, any channel may be used as long as the administrator cannot identify the sender, such as an anonymous network such as Tor or anonymous aggregation by Google Form (trademark). This makes it possible to prevent each user from voting more than once while keeping the voting contents of the participating users secret from the administrator.
The results of voting on the voting page 103C can be aggregated by the manager to determine the poster with the highest evaluation in the virtual poster session. In addition, the sent opinions and the like can be sent to the poster presenter (creator).

On the encryption page 103D, an encryption screen (not shown) is displayed by clicking the encryption in FIG. What is displayed on this page is the public key required for the participating user to participate in the virtual poster session using a terminal other than the participating user terminal 2000 that registered the account when participating in the virtual poster session. An encryption key consisting of a set of private keys.
The encryption key is automatically created on the participating user's terminal when the participating user logs in for the first time, and the private key is stored only on the participating user terminal and not on the administrator terminal 1000. The public key is transferred to the server, stored, and shared with other participating users when the encryption button 212 is used.

The log-out icon 104 can end the virtual poster session by clicking the icon. You can also end the virtual poster session by simply closing the virtual poster page.

<Registration process and encryption key creation sequence>
FIG. 10 shows a sequence in which a participating user registers and accesses a virtual poster session. Here, a case where an e-mail address is used as authentication information will be described.
In step S00, the participating user who participates in the virtual poster session uses the participating user terminal 2000 to transmit to the administrator terminal 1000 of the administrator (organizer) in order to participate in the virtual poster session. Also, when making a poster presentation, tell them that they will make a poster presentation. When applying for participation as a group representative of multiple participants, a list of e-mail addresses that serve as authentication information for the participants will be sent to the administrator.

In step S01, the administrator terminal 1000 registers the e-mail address that is the authentication information of the participating user, sets the user ID, and creates the URL that can access the virtual poster session that has applied for participation. , The administrator terminal 1000 transmits to the participating user terminal 2000 of the participating user.

In step S02, the participating user logs in from the participating user terminal 2000 using the authentication information in the URL.

If the authentication information matches the authentication information registered in the administrator terminal 1000 at the time of login, the user is authenticated (step S03), and the participating user can access the virtual poster session (step S04).

In step S02, at the time of the first login, the code consisting of the public key and the private key pair required for participating in the virtual poster session is automatically created on the participating user terminal 2000 (step S02').
The public key encrypts the content sent to itself. The public key can encrypt the contents, but cannot decrypt the contents.
On the other hand, the private key has a function of decrypting what is encrypted with its own public key. It is also possible to use symmetric key cryptography using a method such as elliptic curve Diffie-Hellman key sharing using its own private key and the recipient's public key when transmitting to the recipient. The private key is also used to digitally sign the information sent by the sender.
The created and saved private key and public key of the participating user are displayed on the participating user terminal 1000 encryption page 103D.

Of the private key and public key created in step S03, the private key is stored only in the participating user terminal 2000.

In step S04, the administrator terminal 1000 stores the public key sent from the participating user terminal 2000.

<Sequence of conversation encryption>
An encryption sequence in the administrator terminal 1000 and the participating user terminals 2000A and 2000B when the encryption button 212 is used will be described with reference to FIG. 11.
It is assumed that among the participating users who use the terminal 2000A and the terminal 2000B, the participating user of the terminal 2000A enables the encryption button 212 during the conversation (step S010).
When the encryption button 212 of the terminal 2000A is enabled, the administrator terminal 1000 sends the public key of the other participating user (terminal 2000B) to the terminal 2000A participating in the conversation (step S011).
Since the public key of the other party is sent only when the encryption button 212 is enabled, there is no concern that the user who participates later will decrypt the conversation before the participation in which the encryption button 212 is used.

Participant user starts a conversation. Here, a case where the participating user terminal 2000A is the transmitting side and the participating user terminal 2000B is the receiving side will be described. When the conversation content is transmitted from the terminal 2000A, the content is encrypted using the public key of the receiving participating user and its own private key, and transmitted to the administrator terminal 1000 (step S012).
When there are a plurality of participating users to receive, the conversation is encrypted using the public key for each receiver and transmitted to the administrator terminal 1000.
This realizes end-to-end encryption in which the contents of the conversation cannot be read even on the administrator terminal 1000.

The encrypted and transmitted conversation content is transmitted to the participating user terminal 2000B received from the administrator terminal 1000. The received participating user terminal 2000B is decoded using the private key, and the conversation content is displayed in the conversation history unit 201 of the exchange area 200 (step S013). The above encryption can be applied not only to character information but also to images, sounds, moving images and the like.

The transmission content encrypted by the sender's user terminal 2000A is transmitted to the receiver's user terminal 2000B via the administrator terminal 1000 as described above, and is also transmitted by a peer-to-peer (P2P) method using WebRTC or the like. , It is also possible to send and receive directly between user terminals. The advantage of the format of transmitting via the administrator terminal is that the receiver can receive the information later by storing the information once in the administrator terminal even if the receiver is offline at the time of transmission. On the other hand, the advantage of the P2P method is that it guarantees the prevention of tampering with the public key even if the administrator cannot trust it. It is also possible to use an existing protocol such as the Signal protocol for encrypted communication that has been prevented from being tampered with by the administrator.

The encryption technique of the present invention using the public key and the private key enables the participating users to exchange secret information with peace of mind without even the administrator reading the information that they want to keep secret.

<Overview of conversation processing>
Next, with reference to FIG. 12, a process when the participating users have a conversation in the poster session area 100 will be described. In the basic conversation process, in S1, the participating user searches for the avatar 11 of the participating user who wants to have a conversation in the poster session area 100, and is adjacent to the movement operation key 2 or the avatar 11 of the participating user who wants to have a conversation. The participating user's own avatar 1 is adjacent to the participating user's avatar 11 by double-clicking the square. Also, if you want to participate in the conversation of a conversation group of a plurality of participating users who are talking, it is adjacent to the avatar of one of the participating users of the conversation group.

In S2, a conversation is possible by double-clicking the avatar 1 of the participating user in a state where the avatar 11 of the participating user who wants to have a conversation is adjacent to the avatar 11.
Further, when a new conversation group is created with a plurality of participating users and it is desired to have a conversation, it is possible to talk with the conversation group by double-clicking the avatars 11 of the plurality of participating users who want to have an adjacent conversation.
It should be noted that, by using high-speed movement by double-clicking and double-clicking the participating user who wants to have a conversation as a destination, the conversation may be possible after moving to the adjacent square at high speed.
At this time, if the participating user who wants to have a conversation does not activate the conversation button 215 of the chat unit 202, the participating user's own avatar 1 and the participating user's avatar 11 have a conversation border 210 of the same color. Be surrounded. At this time, the chat input unit 211, the send button 213, and the exit button 214 of the chat unit 202 of the participating user and the participating user who wants to have a conversation are activated. Further, the movement operation key 2 becomes inactive and cannot be moved, and the process proceeds to S3.

In S3, by inputting the content to be talked to in the chat input unit 211 and pressing the send button 213 or a predetermined input key, the conversation content is transmitted to the participating users who want to have a conversation. The conversation content is displayed in both the conversation history section 201 of the participating user who sent the conversation and the conversation history section of the other participating users in the conversation to which the conversation was sent, together with the registered name of the participating user who sent the conversation. To. When having a conversation by video or voice, by pressing the transmission button 213, the line can be connected to the participating user who wants to have a conversation, and the conversation becomes possible.
Further, in S3, if the conversation content is not to be decrypted without permission from an external terminal, the encryption button 212 of the chat unit 202 is activated. If you do not want other participating users to participate in the conversation that has just started, you can activate the conversation button 215 of the chat unit 202 so that other participating users other than the one currently talking can talk freely. You can prevent them from participating in.

In S4, by pressing the exit button 214 when ending the conversation, the chat input unit 211, the send button 22, and the exit button 23 of the chat unit 202 become inactive, and the movement operation key 2 is pressed. You will be active and will be able to move again. At this time, the conversation history unit 201 of the participating user who was having a conversation with the participating user who pressed the withdrawal button 214 displays that the conversation has ended. Further, when the conversation is performed using video and audio, the line is disconnected by pressing the exit button 214.
The above is the basic conversation processing of the virtual poster session system according to the present invention.

Next, in S2, a process when the participating user who wants to have a conversation activates the conversation button 215 of the chat unit 202 will be described with reference to FIG.
When the participating user is adjacent to the avatar of the participating user who wants to have a conversation (S1), the participating user who wants to have a conversation is in a situation where the conversation button 215 is activated (when YES in S2).
In this situation, when the participating user double-clicks the avatar of the participating user who wants to have a conversation, the process proceeds to S5 in FIG. I'm in a conversation. Please wait. ] Is displayed. On the other hand, the participating user who is double-clicked is displayed in the conversation history unit 201 with a small icon of the adjacent participating user avatar, a small consent icon, and a small non-acceptance icon, and the adjacent participating user is requested to have a conversation. Is displayed (S5'). The double-clicked participating user in the conversation confirms the participating user user avatar requesting the adjacent conversation on the screen, and if there is no problem in joining the conversation, the inactive button 215 is inactive. Then, the icon of the adjacent user avatar 1 can be joined to the conversation by double-clicking, or by clicking the small consent icon (S6'). As a result, "Welcome to the conversation history section 201 of the participating user who requested the conversation. ] Is displayed, and the process shifts to S3 in FIG. 12, which is a normal conversation state. On the other hand, if you want to have a conversation with a participating user who wants a conversation later, click the small disapproval icon. Then, the conversation history section 201 of the participating user who requested the conversation said, "See you later. ] Is displayed.
After that, when the conversation becomes possible, the conversation can be made by a normal method or by clicking the small icon of the participating user avatar displayed in the conversation history unit 201 to bring the conversation into a normal conversation state.

Next, with reference to FIG. 14, a process of performing a conversation via the virtual poster 3 will be described.
In S10, the participating users place their avatar 1 adjacent to the virtual poster 3. It is assumed that the conversation via the virtual poster 3 is used when the avatar of the poster creator (presenter) cannot be found in the virtual poster appearance range 4.
In S11, the participating user double-clicks the virtual poster 3 with his / her avatar 1 adjacent to the virtual poster 3. When the creator of the poster is not in a conversation, the send button 213 and the exit button 214 are activated and the conversation becomes possible (S12). After that, it is the same as the normal conversation method.
On the other hand, if the creator of the poster is in a conversation, the conversation history section 201 of the participating user who requested the conversation says "Currently in a conversation. Please wait. ] Is displayed. At the same time, the poster creator's conversation history section 201, whose poster was double-clicked, displays "Poster" and a small avatar icon of the user who wants to have a conversation, indicating that the poster is being asked to have a conversation. Will be done. After the current conversation is over, the poster creator may search for the avatar 1 of the participating user who requested the conversation around his virtual poster 3 and have the conversation as usual, or the user who wants the conversation. You can answer the question by double-clicking the small avatar icon (S12').

By performing the above processing, the participating users can have a conversation within the poster session area 100.

Needless to say, in the virtual session system of the present invention, objects such as avatars, virtual exhibits, and virtual obstacles may be appropriately changed according to the session. Needless to say, the size and shape of each icon and the display area can be changed as appropriate in consideration of ease of use and the like. Further, the words displayed in the conversation history unit 201 can be arbitrarily changed according to the situation.

The virtual session system of the present invention is not limited to the above, and other functions may be added.
For example, when a lecture (park) open space area consisting of a plurality of squares is provided in the session area 100 and a participating user operates the movement operation key 2 to invade the area, the speaker announces in the virtual poster (exhibit) display area 300. A slide is displayed, and the send button 213 and the exit button 214 provided in the chat unit 202 of the exchange area 200 are changed to the active state. In that state, when the transmission button 213 is clicked, a video or audio line is connected, and the speaker may be displayed in the exchange area 200 so that the speaker can listen to the lecture.

Further, when a free conversation area consisting of a plurality of squares is provided in the poster session area 100 and a participating user operates the movement operation key 2 to invade the area, the poster session area is automatically adjacent to or doubled with the participating user in the free conversation area. You may be able to talk without a predetermined operation such as clicking. In that case, it is possible to impose a restriction that the conversation button 215 or the like that restricts the conversation cannot be used.

Further, although the session area 100 is a two-dimensional virtual space, when an object of a building is provided in the session area 100 and the object is operated by a predetermined operation, for example, double-clicking, the two-dimensional session area screen in the building is displayed. When it appears and you can move freely in it, or if you set up a staircase object and double-click it, a 2D session area screen on another floor will appear, and the session area will have depth and the real world. By reproducing the arrangement and the like, the participating users may be able to experience the virtual space in a form closer to reality.

As described above, the virtual session system of the present application can add arbitrary various functions, and can be suitably used for a virtual society system such as a virtual session, a virtual lecture, a virtual exchange meeting, a virtual open campus, and the like.

As described above, the present invention is a system in which a participating user can easily perform a virtual session in a virtual space even if he / she does not have special equipment or skill.
In the present invention, examples have been described using a poster session as an example, but the present invention is not limited to the poster session. It can also be suitably used for exhibits, for example, paintings and works of art.
In that case, by dropping an exhibit such as a photograph of a painting, a video of an art work, or a moving image on the virtual poster display area 300, the virtual space can be easily turned into an art museum, a solo exhibition, or an exhibition hall.
In addition, the manager and the explainer can talk with the user who participated in the virtual space to explain the contents of the exhibit and to have a business talk.

In addition, it goes without saying that virtual exchange meetings and virtual conferences can be easily held using only the conversation function.
It should be noted that the present invention also includes all the configurations in which each of the above-described embodiments and modifications thereof are combined.

1 User avatar 2 Move operation key 3 Virtual poster 4 Virtual poster appearance range 5 Virtual obstacle 10 User display name 11 Other participating user's avatar 30 Poster number 100 Poster session area 101 Poster session entire area display icon 102 Poster list icon 103A Avatar Page 103B User poster page 103C Voting page 103D Encryption page 103 User setting icon 200 Exchange area 201 Conversation history section 202 Chat section 210 Conversation border 211 Chat input section 212 Encryption button 213 Send button 214 Exit button 215 Conversation button 220 User Small Icon 221 Accepted Small Icon 222 Non-Consent Small Icon 300 Virtual Poster Display Area 301 Virtual Poster Comment Area 302 Poster Chat Unit 303 Poster Comment Send Button 400 Poster Session Overall Area 401 Display Frame 1000 Administrator Terminal 1001 Central Control Unit 1002 Storage Device 1003 Input control unit 1004 Peripheral device control unit 1005 Communication I / F control unit 1010 System bus 2000, 2000A, 2000B, 2000C Participating user terminal

That is, in the present invention, a plurality of participating users share a two-dimensional virtual space constructed on an administrator terminal connected via a network with the participating user terminals, and the plurality of participating users are in the two-dimensional virtual space. In a two-dimensional virtual space exchange system in which information is exchanged by operating each person's avatar, the administrator terminal is accessed by the participating user, and the participating user's avatar is displayed on the participating user terminal. Then, by operating the participating user terminal of the participating user, the avatar operated by the participating user can be moved to an arbitrary position in the two-dimensional virtual space, and a conversation is made between the two-dimensional virtual space and the participating user. By providing a providing means for providing an exchange area where the participants can interact with each other, and the participating user performing a predetermined operation by placing the avatar operated by the participating user adjacent to the avatar of another participating user in the two-dimensional virtual space. A control means that controls so that conversation can be performed in the exchange region,
The exchange area is provided with limiting means for restricting other participating users who are not in conversation from participating in the conversation, and the control means is such that the participating users who are in conversation use the limiting means. When used, it controls to restrict participation of the participating user other than the participating user in the conversation from participating in the conversation, and operations of the participating user other than the participating user in the conversation are performed. When the avatar to be used is adjacent to the avatar of the participating user in a conversation and performs the predetermined operation, the conversation is performed by performing the predetermined operation with the participating user in the interaction area of the participating user during the conversation. It is characterized by controlling the display of small avatars that can be created .

Claims (14)

A plurality of participating users share a two-dimensional virtual space constructed on an administrator terminal connected via a network among participating user terminals, and the plurality of participating users operate their avatars in the two-dimensional virtual space. It is a two-dimensional virtual space exchange system that exchanges information.
When the participating user accesses the administrator terminal, the avatar of the participating user is displayed on the participating user terminal, and the avatar operated by the participating user is displayed by the operation of the participating user terminal of the participating user. The providing means for providing the two-dimensional virtual space that can be moved to an arbitrary position in the two-dimensional virtual space and the exchange area where conversations can be made between the participating users.
Controlled so that the participating user can have a conversation in the exchange area by performing a predetermined operation by placing the avatar operated by the participating user adjacent to the avatar of another participating user in the two-dimensional virtual space. Control means to
A two-dimensional virtual space system characterized by being equipped with. The control means controls so that when the participating user starts a conversation with the other participating user, the participating user and the other participating user are displayed on the avatar that the conversation is in progress. The two-dimensional virtual space system according to claim 1. The two-dimensional virtual space system according to claim 2, wherein the control means controls the display of the avatar during conversation so that it is displayed using a different conversation border for each conversation group. .. The interaction area is provided with limiting means for restricting other participating users who are not in conversation from participating in the conversation, and the controlling means uses the limiting means for the participating users who are in conversation. If not, the participating user other than the participating user in the conversation makes the avatar operated by the participating user adjacent to the participating user in the conversation and performs the predetermined operation during the conversation. The two-dimensional virtual space system according to any one of claims 1 to 3, wherein the two-dimensional virtual space system is controlled so that a conversation can be performed with the participating user in the exchange area. The interaction area is provided with limiting means for restricting other participating users who are not in conversation from participating in the conversation, and the controlling means is such that the participating users in conversation use the limiting means. If so, according to any one of claims 1 to 4, the participating user other than the participating user in the conversation is controlled to restrict participation in the conversation. Two-dimensional virtual space system. In the control means, when the participating user in the conversation is using the limiting means, the avatar operated by the participating user is adjacent to the avatar of the participating user in the conversation except for the participating user in the conversation. 5. The fifth aspect of the present invention is characterized in that when the predetermined operation is performed, a means for selecting whether or not the participating user can participate in the conversation is displayed in the exchange area of the participating user during the conversation. The described two-dimensional virtual space system. In the control means, when the participating user in the conversation is using the limiting means, the avatar operated by the participating user is adjacent to the avatar of the participating user in the conversation except for the participating user in the conversation. Further, when the predetermined operation is performed, the control is performed to display a small avatar that can talk with the participating user by performing the predetermined operation in the exchange area of the participating user during the conversation. The two-dimensional virtual space system according to claim 5 or 6. An exhibit object related to the exhibit is displayed in the two-dimensional virtual space, and the control means has an avatar operated by the participating user in the exhibit appearance range provided around the exhibit object. Correspondingly, the claim is characterized in that an exhibit display area appears on the screen of the participating user who operates the avatar, and control is performed to display detailed information of the exhibit in the exhibit display area. The two-dimensional virtual space system according to any one of 1 to 7. The control means causes the virtual poster comment area to appear on the screen of the participating user who operates the avatar in response to the presence of the avatar of the participating user in the exhibition appearance range, and the participating user causes the virtual poster. The two-dimensional virtual space system according to claim 8, wherein the comment is controlled so that the comment can be described in the comment area. The providing means further provides the participating user terminal with an exchange area in which conversations can be made between the participating users.
The control means controls the avatar operated by the participating user so as to be able to talk with the presenter of the exhibit in the exchange area by performing a predetermined operation by placing the avatar operated by the participating user adjacent to the exhibit object. The two-dimensional virtual space system according to claim 8 or 9. It has a storage device on the administrator terminal.
When the participating user terminal initially logs in to the two-dimensional virtual space, a public key and a private key are created in the participating user terminal, and the public key of all the participating users is stored in the administrator terminal. Stored in the device,
The exchange area is provided with an encryption means for encrypting the transmission content of the conversation.
The providing means provides the public key of the other participating user from the storage device when the participating user uses the encryption means.
A claim characterized in that when the participating user transmits the conversation to the other participating user, the conversation content is encrypted with the private key of the participating user and the public key of the other participating user. The two-dimensional virtual space system according to any one of 1 to 10. The encryption means, if there are a plurality of the other participating users to receive.
The providing means provides the public key of each of the plurality of other participating users received from the storage device.
11. Two-dimensional virtual space system. A program for causing a processor on the administrator terminal to execute the processing of the two-dimensional virtual space system according to any one of claims 1 to 12. A plurality of participating users share a two-dimensional virtual space constructed on an administrator terminal connected via a network among participating user terminals, and the plurality of participating users operate their avatars in the two-dimensional virtual space. It is a control method of a two-dimensional virtual space exchange system that exchanges information.
When the participating user accesses the administrator terminal, the avatar of the participating user is displayed on the participating user terminal, and the avatar operated by the participating user is operated by the operation of the participating user terminal of the participating user. Provided, the two-dimensional virtual space that can be moved to an arbitrary position in the two-dimensional virtual space, and an exchange area where conversations can be made between the participating users.
Controlled so that the participating user can have a conversation in the exchange area by performing a predetermined operation by placing the avatar operated by the participating user adjacent to the avatar of another participating user in the two-dimensional virtual space. do,
A control method for a two-dimensional virtual space system.

Images