KR20130038036A - Method and apparatus of sharing a virtual space between terminals - Google Patents

Abstract

A method and apparatus for sharing a virtual space are disclosed. According to the present invention, not only the user of another terminal is provided with information on the virtual space displayed on one terminal, but also the virtual space displayed by the terminal as a reference by reflecting the correlation where each terminal is physically located in the virtual space display. It extends to overcome the limitations of the display range, and furthermore, by detecting the movement of the terminal in the real space and reflecting it in the virtual space display, the terminal user can intuitively and conveniently control the display of the virtual space, while the virtual space between the terminal users You can maximize your sense of unity by sharing.

Description

Method and device for sharing virtual space {Method and Apparatus of sharing a virtual space between terminals}

The present invention relates to a method and apparatus for sharing a virtual space, and more particularly, to a method and apparatus for sharing a virtual space by reflecting physical locations of a plurality of terminals.

Today, a terminal having an image display device is widely used in daily life. In particular, smartphones provide web surfing, games, and location information through various applications as well as voice and video calls. Map information service through a smart phone terminal allows the user to easily obtain information about the area where they are located without using a printed map. In the method of providing the map information, the web server that records the map information transmits the information about the area requested by the user through the downlink, or the smartphone terminal embeds the medium in which the map information is recorded.

In the current map information service using a smartphone terminal, even when a plurality of users search the same area, each terminal independently operates and recognizes the map information separately. If a plurality of users cooperate to search for a common region of interest, or if a user who owns a plurality of terminals executes a map service, each terminal driven independently must be individually controlled, resulting in inefficiency and lack of sense of unity. In addition, the screen display range of the miniaturized portable terminal has a disadvantage of causing inconvenience to the user compared to the conventional printed map.

The technical problem to be achieved by the present invention is to maximize the sense of unity between the terminals by moving and displaying the virtual space in accordance with the positional correlation in the real space a plurality of terminals displaying the virtual space in the real space movement between the integrated terminal It is to provide a device and a method capable of organic and intuitive control by reflecting on the virtual space as it is.

In order to achieve the above technical problem, a root terminal for displaying a virtual space according to an embodiment of the present invention includes a virtual space display unit for displaying a first area in the virtual space; A receiver configured to receive information about a relative distance and a direction in a real space with a second terminal that receives and displays information on a location of a second area in a virtual space; An area calculator configured to calculate a position of a second area spaced apart from the first area in proportion to a relative distance and a direction; And a providing unit providing information on the calculated position of the second region to the second terminal.

In order to achieve the above technical problem, the guest terminal according to an embodiment of the present invention includes a movement detecting unit for determining its movement distance and direction from a specific position on the basis of a change in azimuth and speed occurring when moving in the real space; A providing unit providing information on a moving distance and a direction from a specific location to a first terminal displaying a first area in a virtual space; A receiver which receives, from the first terminal, location information of a second area in the virtual space spaced from the first area in proportion to a moving distance and a direction from a specific location; And a virtual space display unit displaying the second area.

In order to achieve the above technical problem, the virtual space sharing method according to an embodiment of the present invention includes a first region display step of the root terminal to display the first region in the virtual space; Guest movement grasp step that the guest terminal grasps the moving distance and direction from a specific location in the real space; A guest mobile reception step of receiving a movement distance and a direction from a root terminal by a specific position; A second area calculating step of calculating, by the root terminal, the position of the second area in the virtual space spaced from the first area in proportion to the moving distance and the direction from the specific location; A second area receiving step of receiving, by the guest terminal, information on the location of the second area; And a second area display step of displaying, by the guest terminal, the second area.

According to the present invention, since a plurality of terminals organically deploy a virtual space service on the basis of the mutual correlations recognized by the plurality of terminals, the user has an effect of integrating the plurality of terminals into one device. Experience, and by moving the area of the virtual space to be displayed according to the movement of the terminal in the real space, the user can intuitively control without individual input to each terminal, and furthermore, the narrow display of the image display device equipped with a portable terminal This has the effect of indirectly extending the display range.

1 is a view showing a root terminal according to an embodiment of the present invention.
2 is a view showing a guest terminal according to an embodiment of the present invention.
3 is a diagram schematically illustrating a virtual space area displayed by a root terminal and a guest terminal when the root terminal moves in a real space according to an embodiment of the present invention.
4 is a flowchart illustrating a virtual space sharing method between terminals according to an embodiment of the present invention.
5A and 5B are views schematically illustrating an area of a virtual space shared by a root terminal and a guest terminal according to an embodiment of the present invention.

The following merely illustrates the principles of the invention. Thus, those skilled in the art will be able to devise various apparatuses which, although not explicitly described or shown herein, embody the principles of the invention and are included in the concept and scope of the invention. Furthermore, all of the conditional terms and embodiments listed herein are, in principle, intended only for the purpose of enabling understanding of the concepts of the present invention, and are not intended to be limiting in any way to the specifically listed embodiments and conditions . It is also to be understood that the detailed description, as well as the principles, aspects and embodiments of the invention, as well as specific embodiments thereof, are intended to cover structural and functional equivalents thereof. In addition, these equivalents should be understood to include not only equivalents now known, but also equivalents to be developed in the future, that is, all devices invented to perform the same function regardless of structure.

The above objects, features and advantages will become more apparent from the following detailed description in conjunction with the accompanying drawings. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

On the other hand, when an element is referred to as "including " an element, it does not exclude other elements unless specifically stated to the contrary.

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

In the following description, 'virtual space' is generally referred to as 'virtual space' of a virtual reality provided through a 2D or 3D map image or an online game. As image information that can be displayed by a terminal having an image display device, a part of the image information can be identified through a pixel or an index, and the image information can be distinguished from other portions as a concept of a virtual space.

1 is a view showing a root terminal according to an embodiment of the present invention.

Referring to FIG. 1, the root terminal 110 includes a virtual space display unit 111, a receiver 112, an area calculator 113, a movement detecting unit 114, and a provider 115.

The virtual space display unit 111 includes an image display device such as an LCD and an LED to display a virtual space. For convenience of explanation, hereinafter, the area of the virtual space displayed by the virtual space display unit 111 of the root terminal 110 is referred to as a 'first area'.

The root terminal 110 includes a recording medium that records data about the entire virtual space in order to obtain the virtual space data of the first area, and uses a method of reading the virtual space data of the first area from the recording medium. Receive data of the virtual space for the first area from the outside or;

As a method of receiving information on the first area from the outside, there is a method of connecting to a server recording virtual space data through a mobile communication system and receiving the information. Hereinafter, it will be described on the premise that the root terminal 110 obtains the data of the virtual space limited to the first area from the external server.

The root terminal 110 transmits information about the position and scale of the first region to the server. The server receiving the location and scale of the first area provides the root terminal 110 with virtual space data corresponding to the first area.

Information about the location of the first region may be expressed in various formats. For example, if the virtual space is two-dimensional, the virtual space corresponds to a two-dimensional orthogonal coordinate system whose horizontal and vertical axes are X and Y axes, respectively, and the position of one edge of the first region is the (x1, y1) coordinate, and the opposite side The position of the first region may be provided by (x1, y1, x2, y2) coordinates with the position at the corner as (x2, y2).

The scale represents the extent to which the root terminal 110 enlarges or reduces the virtual space of the first area, and may be a value input by the user or a default value previously input when there is no user input. Assuming that it is a map, the scale can be expressed as a relative ratio of the virtual space to the real space, such as 1/500. If the image information is not related to the real space, the total pixel value of the original image and the pixel value of the displayed image are displayed. It can be expressed as a ratio.

Before the root terminal 110 requests the data of the virtual space from the server, it is determined whether the data of the virtual space corresponding to the first area is recorded in the local memory device of the root terminal 110, and if the local memory If the data recorded in the device can be utilized, the process of requesting and receiving the virtual space data of the first area from the server can be omitted.

The virtual space display unit 111 receives an input of a user's touch or rubbing through a touch device and enlarges, reduces, moves, or rotates the virtual space area of the first area according to the input. When the virtual space is enlarged or reduced, the scale of the virtual space is changed, and when the scale is changed, the root terminal 110 is required when data of a wider virtual space area is required or more detailed virtual space data is needed for a narrow range. ) Updates the virtual data from the server. When the position of the first region is changed or rotated, the coordinates of the position of the first region are changed, and the virtual space data is updated based on the changed coordinates of the first region.

The receiver 112 receives information about a relative distance and a direction between the root terminal 110 and the guest terminal 120 in the real space from the second terminal. Here, the 'second terminal' refers to the guest terminal 120, and in the following description, the name 'guest terminal' is used. Receiving the distance and the direction in the real space means the distance and direction in which the guest terminal 120 has calculated its position relative to the root terminal 110 as a reference point. Information about relative distance and direction in real space can be expressed in various formats. Here, a vector may be used to indicate a distance and a direction. A vector representing a relative position of the guest terminal 120 based on the root terminal 110 is called a position vector. Hereinafter, for convenience of description, the name of the position vector will be used.

In order for the guest terminal 120 to determine the distance and direction from the root terminal 110, the distance and direction of the guest terminal 120 moved from the point where the root terminal 110 and the guest terminal 120 overlap with each other. can do.

As a method of receiving the location vector by the receiver 112, the case where the guest terminal 120 directly provides and when receiving through the mobile communication system may be exemplified. In order to directly receive the position vector from the guest terminal 120, the receiver 112 may utilize interfaces such as Bluetooth, wireless Internet, infrared communication, and Near Field Communication (NFC). Given that the guest terminal 120 and the root terminal 110 are located at a short distance and the size of the data to be transmitted and received is relatively small, the root terminal 110 and the guest terminal 120 may directly transmit and receive a position vector. desirable.

The guest terminal 120 is referred to as a 'second area' of the virtual space displayed by the guest terminal 120 in order to share the virtual space with the root terminal 110. The area calculator 113 calculates the second area. A position spaced apart from the first region in proportion to the position vector corresponds to the second region of the virtual space that the guest terminal 120 should display.

If the position vector received from the guest terminal 120 is a value calculated according to the scale of the real space and the scale of the virtual space is different from the scale of the real space, the area calculating unit 113 determines the size of the received position vector of the virtual space. Can be increased or decreased in consideration of scale.

For example, suppose that the position of the first area is represented by coordinates. For example, suppose that the virtual space is a map having a scale of 1/500. If the magnitude of the position vector is 2, the virtual space is reflected by reflecting the 1/500 scale. In the phase by 2 x 500 = 1000. The coordinates of the first region of the virtual space displayed by the root terminal 110 are (x1: 100, y1: 100, x2: 500, y2: 500), and the position vector is located at (length: 2, angle: 0). When the angle of the vector means an angle formed with the x-axis of the coordinate system, if the coordinates are spaced apart by using the position vector, the coordinates of the second region are (x1: 1100, y1: 100, x2: 1500, y2: 500). do.

The movement detecting unit 114 grasps the position change before and after the movement when the root terminal 110 moves in the real space. The movement distance and direction are grasped to indicate the change of position in the real space. The moving distance and the moving direction may be expressed as a vector, and this is called a displacement vector to avoid confusion with the position vector described above. In the following description, a displacement vector is used for convenience in order to express a moving distance and a direction in the real space of the root terminal 110.

The movement detecting unit 114 includes an acceleration sensor and an azimuth sensor to measure changes in speed and azimuth generated during movement. The azimuth sensor is a sensor for measuring a direction of movement. For example, the azimuth sensor may include a geomagnetic sensor and a gyro sensor. The geomagnetic sensor consists of three axes to measure the change of terrestrial magnetism to measure the direction of movement, and the gyro sensor corrects the azimuth error caused by the interference of external magnetic waves to precisely measure the direction of movement. The movement distance is calculated by integrating the acceleration measured by the acceleration sensor in a predetermined time unit.

The providing unit 115 provides the guest terminal 120 with information about the location of the second area. The providing unit 115 may be configured to have the same interface as the receiving unit 112. The information provided by the providing unit 115 may provide the scale of the first region together with the position of the second region calculated by the region calculating unit 113, and the root terminal 110 moves when the root terminal 110 moves in the real space. The grasp 114 also provides the displacement vector calculated.

2 is a view showing a guest terminal according to an embodiment of the present invention.

Referring to FIG. 2, the guest terminal 210 includes a receiver 211, a virtual space display 212, a movement detecting unit 213, and a provider 214. The guest terminal 210 is physically located adjacent to the first terminal 110 and displays the virtual space of the second area adjacent to the virtual space of the first area displayed by the first terminal 110. The virtual space display range of 110 is extended.

In the following description, in order to clearly describe the relationship between the root terminal and the guest terminal described above with reference to FIG. 1, the name of the 'root terminal' is used instead of the 'first terminal'.

The receiving unit 211 receives information provided by the providing unit 115 of the root terminal 110 described with reference to FIG. 1. Therefore, the root terminal 110 receives the information about the position of the second area and the virtual space scale of the first area. Moving in the real space of the root terminal 110 receives the displacement vector together.

The virtual space display unit 212 displays the second area of the received virtual space on the image display device at the received scale. The guest terminal 210 receives the data of the virtual space for the second area like the root terminal 110 from the server that records the virtual space data through the mobile communication system. However, the recording medium may include a recording medium that records data of the entire virtual space, or may be implemented by receiving data of the virtual space from the root terminal 110.

The movement detecting unit 213 tracks the movement of the guest terminal 210 in the real space to grasp the movement distance and the direction from a predetermined position in the real space. Hereinafter, it will be described on the assumption that a predetermined position means a point where the root terminal 110 is located.

The movement detecting unit 213 grasps the movement distance and the direction from the overlapping position based on the change in the acceleration and the azimuth generated when the movement occurs from the position overlapping with the root terminal 110. The movement distance and direction of the guest terminal 210 identified as described above in FIG. 1 are referred to as a position vector for convenience.

In order to recognize the overlapping position to the guest terminal 210, the user stacks the root terminal 110 and the guest terminal 210 on the same plane in the real space, and overlaps the guest terminal 210 on the same plane as the root terminal. By executing an event indicating that the guest terminal 210 recognizes the overlapping position.

In order to determine that the guest terminal 210 and the root terminal 110 are located in the same plane, the guest terminal 210 automatically recognizes the guest in addition to the method of manually inputting an event to the guest terminal 210. The terminal 210 and the root terminal 110 to embed the RFID or NFC module to transmit and receive signals or the root terminal 110 displays a predetermined pattern and symbols promised with the guest terminal 210 and the guest terminal 210 The method of recognizing the pattern of the root terminal 110 through the camera and determining whether the recognized pattern matches the pattern stored by the guest terminal 210 may be considered to check whether the root terminal 110 overlaps. In order to recognize the position of the root terminal 110 more accurately, it is preferable to use a method of recognizing the overlapping positions based on the observation of the user. .

The movement detecting unit 213 detects a movement occurring when the movement occurs from the overlapping position and grasps its current position based on the overlapping position. The movement detecting unit 213 is provided with an acceleration sensor and an azimuth sensor like the root terminal 110 to detect the movement.

However, unlike the movement detection unit 114 of the root terminal 110, the movement detection unit 213 of the guest terminal 210 is not a method of measuring the movement in the real space once but the distance and direction moved from the overlapping position. Since it must accumulate and record the movement distance and the movement direction includes a movement recording unit.

When the receiver 211 receives the displacement vector, the movement detecting unit 213 updates the position vector by adding the displacement vector to the calculated position vector. Through this, even if the root terminal 110 moves in the real space, the guest terminal 210 may determine its relative position from the root terminal 110.

The providing unit 214 provides the calculated position vector to the root terminal 110 and configures the same interface as the receiving unit 112 of the root terminal 110 for providing.

The guest terminal 210 displays the virtual space depending on the physical correlation with the root terminal 110. That is, it can be understood that the virtual space and the real space in which the guest terminal 210 and the root terminal 110 exist are mapped.

Therefore, assuming that the guest terminal 210 is located on the right side of the root terminal 110, the guest terminal 210 displays a virtual space with respect to the right side of the virtual space displayed by the root terminal 110.

3 is a diagram schematically illustrating a virtual space area displayed by a root terminal and a guest terminal when the root terminal moves in a real space according to an embodiment of the present invention.

Although the above description has been made on the assumption that the location in the real space of the root terminal 110 and the displayed virtual space area are fixed, the root terminal 110 when the location or the virtual space area of the root terminal 110 changes. ) And the change in the virtual space area displayed by the guest terminal 210 will be described with reference to FIG. 3.

Referring to FIG. 3, CASE 1a and CASE 1b represent virtual space display areas of the root terminal 110 and the guest terminal 210 when the root terminal 110 physically moves in the real space. In CASE 1a and CASE 1b, the term “third area” refers to a virtual space display area of a terminal whose virtual space display is changed according to the physical movement of the root terminal 110.

When the root terminal 110 moves in the real space, as described in FIG. 1, the root terminal 110 calculates a displacement vector with respect to the moved distance and direction.

First, the root terminal 110 maintains the displayed first area 311 and the guest terminal 210 describes the method of displaying the third area 322 (CASE 1a).

The root terminal 110 maintains the same virtual space region first region 321 which is displayed even when the terminal 110 moves in the real space. In this case, the virtual space area displayed by the guest terminal 210 reflects the movement in the real space of the root terminal 110. Accordingly, the user of the root terminal 110 may move the second area 312 of the virtual space displayed by the guest terminal 210 by moving his terminal in the real space.

The root terminal 110 calculates the position of the third region 322 based on the position vector and the displacement vector. The position of the third region corresponds to a position spaced apart from the first region 311 in proportion to the position vector and the displacement vector, respectively. In other words, the position where the first region 311 is moved according to the vector calculated by adding the position vector and the displacement vector means the position of the third region 322. The guest terminal 210 receives the location of the third area 322 and displays a virtual space with respect to the location of the third area 322.

For example, if the root terminal 110 is moved to the left, the guest terminal 210 relatively moves away from the right side of the root terminal 110, and thus the guest terminal 210 is located on the right side of the area of the virtual space previously displayed. The virtual space area corresponding to the is displayed.

The route terminal 110 displays the third region 331 and the guest terminal 210 will be described to maintain the same display of the second region 312 (CASE 1b).

The root terminal 110 changes the virtual space area displayed by reflecting the movement in the real space. In more detail, the root terminal 110 calculates the virtual space position of the third region 331 by moving the virtual space position of the first region 311 displayed according to the displacement vector. The root terminal 110 transmits the calculated position of the virtual space of the third area 331 to an external server, receives the virtual space data of the corresponding area, and displays the third area 331.

As described above in FIG. 2, the guest terminal 210 receives the displacement vector and updates the position vector. The root terminal 110 calculates the position of the virtual space region 332 spaced apart from the third region 331 based on the updated position vector and provides it to the guest terminal 210. In this case, since the position of the virtual space spaced in proportion to the position vector updated from the third region 331 is the same point as that of the second region 312, the guest terminal 210 before and after the movement of the root terminal 110. Display the same virtual space area over.

In the above-described example, the root terminal calculates the position 332 of the virtual space region based on the position of the third region 331, but since the guest terminal 210 displays the same virtual space region, the root terminal ( The calculation process may be omitted by simply ignoring the movement in the real space of 110.

Comparing CASE 1a and CASE 1b, the CASE 1a may move the second area 312 displayed by the guest terminal 210 by moving the root terminal 110 in the real space. When CASE 1b is mapped to the real space and the virtual space, the root terminal 110 is also constrained to operate in the mapped virtual space and the real space. In the following description, it is assumed that the root terminal 110 is the case of CASE 1b when the terminal 110 moves in the real space.

Next, the case where only the display of the virtual space of the first region is changed while the position of the root terminal 110 is fixed in the real space will be described (CASE 2, not shown).

In the case of changing the area of the virtual space to be displayed, rotation, enlargement or reduction of the virtual space, and movement of the position of the first area may be considered. The root terminal 110 calculates the position of the second region based on the position of the moved first region, and provides the guest terminal 210 with information about the scale of the updated first region and the position of the second region. The area of the second virtual space displayed by the terminal 210 is updated. This process may be understood in the same manner as the process in which the guest terminal 210 receives and displays the position and scale of the second area of the virtual space for the first time from the root terminal 110.

4 is a flowchart illustrating a virtual space sharing method according to an embodiment of the present invention.

4, a root terminal 110 for sharing a virtual space, a guest terminal 210, and a server 410 transmitting virtual space data.

First, the root terminal 110 starts a virtual space sharing service (S401). The root terminal 110 executes an application for the virtual space sharing service and receives and displays virtual space data from the server 410.

The guest terminal 210 participates in the virtual space sharing service initiated by the root terminal 110 (S402). As a way for the guest terminal 210 to participate in the virtual space sharing service, a message informing of service participation is directly transmitted to the root terminal 110, or as shown in the request, the server 410 requests to participate in the virtual space sharing service. Can be. In this process, the root terminal 110 or the server 110 may accept or reject the service participation through a process of user authentication.

The root terminal 110 and the guest terminal 210 grasp the mutual positional relationship of the real space (S403). The guest terminal 210 overlaps the plane of the real space where the root terminal 110 is located and executes an event informing the guest terminal 210 of the overlapping so that the guest terminal 210 stores the overlapping position. Since the guest terminal 210 does not have physical movement from the overlapping position, the guest terminal 210 provides the root terminal 110 with a position vector of (length: 0, angle: 0).

The root terminal 110 calculates the position of the second region based on the position vector, and provides the guest terminal 210 with the position of the second region and the scale of the first region (S404). In the present step, the location of the second area provided to the guest terminal 210 coincides with the location of the virtual space of the first area displayed by the root terminal 110.

The guest terminal 210 requests and receives virtual space data about the location of the second area from the server 410 and displays the received data (S405 and S406).

The guest terminal 210 moves in the real space, updates the position vector, and provides it to the root terminal (S407 and S408).

The root terminal 110 updates the position of the second region based on the received position vector, and provides the guest terminal 210 with the scale of the first region and the position of the second region (S409).

The guest terminal 210 requests the server 410 to request the virtual space data of the updated location of the second area, and updates and displays the data of the virtual space (S410 and S411).

Next, the root terminal 110 moves in the real space, and calculates the displacement vector and provides it to the guest terminal 210 (S412 and S413).

The guest terminal 210 updates the position vector by adding the received displacement vector to the position vector, and transmits the updated position vector to the root terminal 110 (S414 and S415).

The root terminal 210 calculates the position of the second region based on the updated position vector and transmits the position and scale of the second region to the root terminal (S416).

As described above with reference to FIG. 2, in the case of “CASE 1b,” the guest terminal 210 ignores the movement of the root terminal 110 in the real space, and thus steps S412 to S416 may be omitted.

5A and 5B are views schematically illustrating an area of a virtual space shared by a root terminal and a guest terminal according to an embodiment of the present invention.

5A and 5B, the virtual space sharing terminals belong to the L1 group or the L2 group. The L1 group includes the root terminal 501 and the guest terminals 502, 503 and 504, and the L2 group includes the root terminal 504 and the guest terminal 505. The terminals 501 to 505 share a map service, and the virtual spaces 510 to 540 are scales or orientations of the virtual spaces 510 to 540 which change or display positions in the real space of the terminals 501 to 505. The result reflects the change of.

The terminal 504 belonging to both the L1 and L2 groups includes all the components of the root terminal 110 and the guest terminal 210 on the premise that both the root terminal 110 and the guest terminal 210 can be operated. do. In the L1 group, it functions as a guest terminal based on the root terminal 501, but in the L2 group, it functions as a root terminal for the guest terminal 505.

The terminal 504 serves as an intermediary to allow terminals belonging to the L1 group and the L2 group to share a virtual space, and the guest terminal 505 of the L2 group is relatively remote from the root terminal 501 of the L1 group. If there is a physical limitation in sharing the virtual space, the guest terminal 504 of the L1 group is utilized as a root terminal so that the user of the guest terminal 504 can more easily share the virtual space with the L1 group, while L1 There is an advantage in distributing traffic concentrated in the root terminal 501 of the group.

In the first virtual space 510, the locations of the terminals 501 to 505 in the real space and information on the displayed virtual space may be checked. Each of the guest terminals 502 to 505 displays the virtual space in response to the correlation of the physical location with the root terminal.

The virtual space 520 represents a virtual space displayed after the guest terminals 502, 503, 504 of the L1 group move in the real space. Here, when the guest terminal 504 of the L1 group moves, it can be seen that the root terminal 504 has moved to the guest terminal 505 of the L2 group, and the guest terminal 505 moves from the root terminal 504 in the real space. Receive displacement vector reflecting

The virtual space 530 represents a virtual space displayed by the guest terminals 502 to 505 of the L1 and L2 groups when the virtual space displayed by the root terminal 501 of the L1 group is rotated and enlarged.

First, the guest terminals 502 to 505 of the L1 group will be described. When the user of the root terminal 501 rotates and enlarges the virtual space, the coordinates and scale of the displayed virtual space are changed. The root terminal 501 calculates the position and scale of each second region based on the changed coordinates and scale of the virtual space and provides the guest terminals 502 to 504. Each of the guest terminals 502 to 504 displays the virtual space of the second area on the basis of the information received from the root terminal 501 and the scale of the first area.

Next, the terminals 504 and 505 of the L2 group will be described. The root terminal 504 of the L2 group changes the scale and coordinates of the virtual space to be displayed in accordance with the root terminal 501 of the L1 group. Accordingly, the root terminal 504 of the L2 group provides the guest terminal 505 with the scale of the changed virtual space and the position of the second region. The guest terminal 505 of the L2 group updates the virtual space of the second area to be displayed based on the information received from the root terminal 504.

Through the above-described process, the guest terminal 505 of the L2 group does not directly transmit or receive information with the root terminal 501 of the L1 group, but may share a virtual space with the root terminal 501 of the L1 group.

The virtual space 540 is a case where there is no change in the position and the first area in the real space of the root terminal 501, and the scale of the virtual space of the second area displayed by the guest terminal 504 of the L1 group individually is displayed. The case of change is shown.

Looking at the terminals 501 to 503 of the L1 group first, even if the guest terminal 504 changes the display of the second area, it does not affect the root terminal 501 and the guest terminals 502 and 503. Accordingly, the L1 group terminals 501, 502, 503 display the same virtual space area as the virtual space 530.

Next, referring to the guest terminal 505 of the L2 group, since the root terminal 504 displays the scale of the virtual space of the first region, the updated information about the position of the second region and the scale of the first region is displayed. The virtual space of the second area displayed by the guest terminal 505 is updated to the terminal 505. The user of each guest terminal may share the virtual space displayed by the root terminal and autonomously control the orientation and scale of the virtual space of the second area displayed by the terminal according to the user's preference.

According to the above description, when the guest terminal 210 of the present invention provides the root terminal 110 with a position vector representing its own position in the real space, the root terminal 110 calculates the position of the second area and the guest terminal. (210). As another embodiment of the virtual space sharing terminal and method, it may be considered to change the device for calculating the position of the second area into a server or a guest terminal.

A case where the server calculates the coordinates of the virtual space of the second area is illustrated. The root terminal and the guest terminal request a virtual space service from the server and overlap the root terminal and the guest terminal as described above.

The server stores the position of the virtual space of the first area transmitted to the root terminal or transmits the information and the scale of the position of the first region to the server side. The guest terminal calculates the position vector according to the movement in the real space and transmits it to the server side. The server calculates the position of the second area based on the information received from the guest terminal and the root terminal, and provides the virtual terminal data on the position of the second area to the guest terminal.

As another example, a case where the guest terminal calculates the position of the second area will be described. The root terminal provides the guest terminal with information and scale about the location of the first area. The guest terminal calculates the position vector according to the movement in the real space, calculates the position of the second region in which the position of the first region received from the root terminal is moved in proportion to the position vector, and displays the scale of the first region received. do.

The embodiment in which the server or the guest terminal calculates the position of the second region will be readily understood by those skilled in the art through the description of FIGS. 1 to 5B despite the brief description.

The present invention can also be embodied as computer-readable codes on a computer-readable recording medium. A computer-readable recording medium includes all kinds of recording apparatuses in which data that can be read by a computer system is stored. Examples of computer-readable recording media include ROM, RAM, CD-ROM, magnetic tape, floppy disks, optical data storage devices, and the like. The computer readable recording medium can also be distributed over network coupled computer systems so that the computer readable code is stored and executed in a distributed fashion.

Claims (15)

A virtual space display unit displaying a first area in the virtual space;
A receiver configured to receive information about a relative distance and a direction in a real space with a second terminal that receives and displays information on a location of a second area in a virtual space;
An area calculator configured to calculate a position of the second area spaced apart from the first area in proportion to the relative distance and the direction; And
And a providing unit for providing the calculated information on the position of the second area to the second terminal. The method of claim 1, wherein the providing unit,
And providing information on the scale of the first area displayed by the virtual space display unit to the second terminal. The method of claim 1,
And a movement detecting unit for grasping a moving distance and a direction in a real space after displaying the first area based on a change in speed and azimuth.
The area calculator calculates a location of a third area in the virtual space spaced apart from the first area in proportion to the movement distance and the direction.
And the virtual space display unit displays the third area. The method of claim 1,
And a movement detecting unit for grasping a moving distance and a direction in a real space after displaying the first area based on a change in speed and azimuth.
The area calculating unit calculates a position of a third area in the virtual space spaced apart from the first area in proportion to the moving distance and direction determined by the moving detecting unit and the relative distance and direction to the second terminal, respectively.
The providing unit provides a root terminal, characterized in that for providing information on the position of the third area to the second terminal. The method of claim 3 or 4, wherein the moving detection unit,
An azimuth sensor for measuring a change in azimuth according to physical movement;
An acceleration sensor measuring acceleration due to physical movement; And
And a calculation unit for calculating a moving distance by integrating the measured acceleration.
The providing unit is a root terminal, characterized in that for providing the moving distance and azimuth angle detected by the moving grasp portion to the second terminal. A movement detecting unit for detecting its own moving distance and direction from a specific position based on a change in azimuth and speed generated when moving in real space;
A providing unit providing information on a moving distance and a direction from the specific location to a first terminal displaying a first area in a virtual space;
A receiver configured to receive, from the first terminal, location information of a second area in the virtual space spaced apart from the first area in proportion to a movement distance and a direction from the specific location; And
And a virtual space display unit for displaying the second area. The method of claim 6, wherein the moving detection unit,
An azimuth sensor for measuring a change in azimuth according to physical movement;
An acceleration sensor measuring acceleration due to physical movement;
A calculation unit for calculating a moving distance by integrating the measured acceleration; And
And a movement recorder for accumulating the movement distance and the azimuth angle. The method according to claim 6,
The specific position is a position overlapping the first terminal and the real space,
And the movement detecting unit grasps a relative distance and a direction from the first terminal by calculating a movement distance and a direction from the overlapping position. The method of claim 6, wherein the receiving unit
Receiving information about the scale of the first area displayed on the first terminal,
The virtual space display unit,
And displaying the second area at the received scale. The method according to claim 6,
The receiver receives information about the moving distance and the direction of the first terminal in the real space,
The movement detecting unit adds its relative moving distance and direction from the specific position and the moving distance and direction of the first terminal, respectively. A first region display step of displaying, by the root terminal, the first region in the virtual space;
Guest movement grasp step that the guest terminal grasps the moving distance and direction from a specific location in the real space;
A guest mobile reception step of receiving, by the route terminal, a moving distance and a direction from the specific location;
A second area calculation step of calculating, by the root terminal, the location of the second area in the virtual space spaced apart from the first area in proportion to the moving distance and the direction from the specific location;
A second area receiving step of receiving, by the guest terminal, information on a location of the second area; And
And a second area displaying step of displaying, by the guest terminal, the second area. 12. The method of claim 11,
In the second area receiving step, the guest terminal receives information on the scale of the first area,
In the second area display step, the guest terminal displays the second area at a scale of the received first area. 12. The method of claim 11,
A root movement detecting step of determining, by the route terminal, its movement distance and direction in the real space after the display of the first region based on the change of the speed and the azimuth angle;
A third area calculating step of calculating, by the root terminal, the position of the third area in the virtual space spaced apart from the first area in proportion to the movement distance and the direction of the root terminal; And
And displaying a third area in which the root terminal displays the third area. 12. The method of claim 11,
A root movement detecting step of determining, by the route terminal, its movement distance and direction in the real space after the display of the first region based on the change of the speed and the azimuth angle;
A third area calculating step of calculating, by the route terminal, the position of the third region in the virtual space spaced apart from the first region in proportion to the movement distance and direction of the guest terminal and the movement distance and direction of the guest terminal, respectively; And
And a third area displaying step of displaying, by the guest terminal, the third area. 12. The method of claim 11,
The specific position is a position where the guest terminal overlaps with the root terminal in the real space,
The guest movement detection step is to determine the relative distance and direction with the root terminal by calculating the moving distance and direction from the overlapping position.

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