KR20040028076A - Providing method of location based area information service for wireless internet service users - Google Patents

Abstract

PURPOSE: A method is provided to obtain location information by linking two-dimensional location information and three-dimensional location information. CONSTITUTION: A method comprises a first step of linking data in a two-dimensional space and data in a three-dimensional space by using the coordinate system for linking a two-dimension and a three-dimension; a second step of receiving a request on a point of interest(POI) from a user of a wireless Internet service system, mixing two-dimensional POI data and three-dimensional POI data, and providing detailed information; and a third step of receiving a request on a point of interest(POI) from a user of a wireless Internet service system, searching a path on the basis of the two-dimensional space coordinates and three-dimensional space coordinates linked to the two-dimensional space coordinates, and providing the path information requested by the user.

Description

PROVIDING METHOD OF LOCATION BASED AREA INFORMATION SERVICE FOR WIRELESS INTERNET SERVICE USERS}

The present invention relates to a method for providing location-based local information for a wireless Internet service user and a computer-readable recording medium recording a program for realizing the method, and in particular, to establish an information providing method for a location-based local information guide service. And computer-readable recording medium that records location-based local information for wireless Internet service users that provides detailed local information and location information to wireless Internet service users by constructing local information data and a program for realizing the method. It is about.

In particular, three services can be provided using the present invention. The first is to display a three-dimensional detailed view of a specific location on a conventional two-dimensional digital map. Secondly, users can search two-dimensional point of interest (POI) data and three-dimensional POI data at the same time, and provide information regardless of whether they are searched in two or three dimensions. I can. Third, the user can receive desired location-based local information without distinguishing between two-dimensional electronic map and three-dimensional detailed map for a specific location by using two-dimensional network data and three-dimensional network data at the same time.

In order to provide such services, the development of various technologies specialized for WLAN-based geographic information service based on various basic geographic information system (GIS) and digital map service technologies necessary for basic geographic information and location guidance. Required.

The presentation of location information using digital map and the presentation of location information using facility drawings are basically located on the same technology line. However, the manner of presentation or the interface with the user can be achieved in other distinct categories, such as:

First, it is an expression of position. The representation of the position in the digital map is expressed in XY coordinates, which is spatial information, and the position information representation in the facility drawing may also be expressed in XY coordinates. However, apart from digital maps that do not exist in three-dimensional space, the location recognition in a facility can be set in various ways such as "XY coordinates + floor", "Room No. + floor", "Block name + XY coordinates". Can be. In addition, spatial movement may also be movement of layers and movements of blocks, rather than a simple XY movement in a digital map.

Second is the representation of space. Spatial representation should also be possible to express multi-layered space in the spatial representation of simple two-dimensional construction. This may be more complicated than the expression of simple three-dimensional spatial technology depending on the characteristics of various facilities.

As described above, there is a problem in that the spatial recognition expression technology using the digital map cannot be directly applied to WLAN-based local information and location guide service, and development of a separate extension technology is essential.

Various spatial retrieval techniques developed in the past also need to be extended to multi-layer spatial retrieval technology, and there is a need for spatial retrieval that cannot be overcome by simple distance or two-dimensional relationship definition technology.

Therefore, the present invention incorporates new technology into various technologies that can be used for location information guidance service and facility management (FM) system used in the existing GIS, facility location guidance and navigation (Navigation) Occurred in the process.

Definition of terms used while describing the present invention is as follows.

Nespot is an example of a wireless Internet service, which is used as a reference to a wireless Internet service in describing an embodiment of the present invention.

Nespot Zone refers to the area where the Access Point, a wireless LAN installed to provide information to subscribers of the wireless Internet service, is concentrated. The Nespot Zone is a large area. It can be an area where the floating population occurs intensively, such as a university, shopping mall, department store or underground shopping mall including a subway station.In a narrow area, one shop that is mainly composed of Nespot service users such as one cafe, fast food store, etc. May be

The Nespot Zone area is the area around the Nespot Zone, which is constructed as a general two-dimensional commercial electronic map. In other words, it is the area where wireless Internet users are expected to use mainly.

An access point refers to a wireless LAN installed to provide information to a wireless Internet service subscriber. In general, several access points are installed in a Nespot Zone, and one access point may be used. An access point may be installed.

Commercial electronic map is a two-dimensional digital map used in the general GIS field.

The three-dimensional detailed view is that the area set as the Nespot Zone is composed of a basement layer or a double layer, and in this case, the Nespot Zone forming each layer is separated from the two-dimensional topographic map used in the existing digital map. It is a map built around the detailed facility map of Nespot Zone. This three-dimensional detailed view can be used with a two-dimensional commercial electronic map by having the same coordinate system and coordinate values as a commercially available electronic map.

Two-dimensional POI data is commonly used in the field of GIS and usually refers to point data for stores including business information. It takes a lot of time and money to build out the data of the GIS field and affects the quality of the GIS data.

Three-dimensional POI data refers to POI data existing in a three-dimensional detailed view with the same data structure and form as general POI data used in commercial electronic maps. That is, it contains a lot of store information and facility information existing in the Nespot Zone, and the two-dimensional POI data is present on the plane, but the three-dimensional POI data is three-dimensional image such as basement or duplex buildings. It looks like it exists.

Two-dimensional network data (Network Data) is used in existing electronic maps, and generally, ITS (Intelligent Transportation System), CNS (CNS), Location Based Information (LBI), etc. Used to show traffic information. Therefore, the purpose of the construction was mainly used for a route guidance service using an automobile or an optimal route guidance service. Two-dimensional route data (Network Data) used in the present invention is based on a personal navigation system (PNS), which refers to a movement route that a user can move on foot. Of course, it is not always limited to the PNS, and in some cases this may vary.

Three-dimensional network data is unfamiliar in the field of GIS and is used as an important part of the present invention by using it together with three-dimensional detail and three-dimensional POI data for explaining the Nespot Zone. Information retrieval including dimensions and three dimensions is now possible.

In other words, route guidance and simulation driving through two-dimensional search refers to outdoor navigation, and route guidance and simulation driving through three-dimensional search refers to indoor navigation. Therefore, the 3D network data establishes all moving lines that the user can move on the Nespot Zone, which is a 3D detailed view, and can also move using stairs, elevators, and escalators even in the basement or duplex floors. You will also build a path of travel between the floor and the floor below. Through this, PNS can be implemented.

Based on this, the prior art is summarized as follows.

Various spatial search technologies developed in the past, namely, radius search, name search, number search, and address search, use only two-dimensional outdoor navigation, and are limited to the definition and expression technology of two-dimensional space. . Therefore, in order to make use of the original purpose of the GIS, which is a technology for expressing the real world, there is a problem that a technology closer to the real world is required.

The present invention has been made in order to solve the above problems, and provides a wireless Internet service user by providing a local form of the corresponding form at the request of the service user by linking the two-dimensional location information and the three-dimensional location information The purpose of the present invention is to provide a location-based local information providing method and a computer-readable recording medium recording a program for realizing the method.

1 is an exemplary configuration diagram of a wireless Internet service system to which the present invention is applied.

2 is a diagram illustrating an embodiment of data construction for a method for providing location-based regional information according to the present invention;

3 is a diagram illustrating an embodiment of interlocking two-dimensional area information and three-dimensional area information for a method of providing location-based area information according to the present invention.

4 is a view illustrating an embodiment of displaying three-dimensional point of interest (POI) data and two-dimensional point of interest (POI) data in a method for providing location-based area information for a wireless Internet service user according to the present invention.

FIG. 5 is a diagram illustrating an embodiment of constructing 3D path data and 2D path data in a method for providing location-based area information for a wireless Internet service user according to the present invention. FIG.

6 is a diagram illustrating an embodiment of elements necessary for the method for providing location-based area information according to the present invention.

7A and 7B illustrate an embodiment of application of three-dimensional spatial coordinates in a method of providing location-based area information for a wireless Internet service user according to the present invention.

8 is a diagram illustrating an embodiment of a data structure and a storage space for representing a three-dimensional spatial structure in the method for providing location-based area information according to the present invention.

9 is a diagram illustrating an embodiment of three-dimensional route data for three-dimensional route guidance in the method for providing location-based area information according to the present invention.

10 is a flowchart illustrating a three-dimensional path search in a method for providing location-based area information for a wireless Internet service user according to the present invention.

11A to 11C are diagrams illustrating an embodiment of a three-dimensional route search in the method for providing location-based area information for a wireless Internet service user according to the present invention.

12 is a diagram illustrating an embodiment of coordinate interworking in a method for providing location-based area information for a user of a wireless Internet service according to the present invention.

13A to 13C illustrate an embodiment of a method for providing location-based area information for a user of a wireless Internet service according to the present invention.

14A and 14B are flowcharts illustrating an embodiment of a method for providing location-based area information for a user of a wireless Internet service according to the present invention.

* Explanation of symbols for the main parts of the drawings

11: wireless terminal 12, 13: access point

14: Hub 15: Router

16: network access management device

According to an aspect of the present invention, there is provided an information providing method applied to a wireless Internet service system, the method comprising: interworking data in two-dimensional space and data in three-dimensional space with spatial coordinates linking two and three dimensions; Stage 1; Receiving information about a point of interest (POI) from a user of the wireless Internet service system and providing detailed information by mixing two-dimensional point of interest (POI) data and three-dimensional point of interest (POI) data; Two steps; And searching for a path based on a two-dimensional space coordinate and a three-dimensional space coordinate linked thereto upon receiving a request for providing route information on the POI from a user of the wireless Internet service system, and providing the route information requested by the user. And a third step.

In addition, the present invention, the wireless Internet service system having a processor, when requested to provide information on the point of interest (POI) from the user of the wireless Internet service system, interworking with the spatial coordinates linking two-dimensional and three-dimensional A first function of providing detailed information by mixing two-dimensional POI data and three-dimensional POI data based on the data on the two-dimensional space and the data on the three-dimensional space; And based on the data in the two-dimensional space and the data in the three-dimensional space having a coordinate coordinated to associate two-dimensional and three-dimensional space by receiving the path information of the POI from the user of the wireless Internet service system. A computer-readable recording medium having recorded thereon a program for realizing a second function of searching for a route and providing route information requested by the user is provided.

A feature of the present invention is the above-mentioned method for expressing POI data for three-dimensional (basement and multi-storey building) data which is not used in the existing GIS field, and for displaying the POI data. It is to geometrically connect existing 2D path data (Network Data) and 3D path data (Network Data) to enable indoor navigation that enables various spatial search and simulation driving.

The above objects, features and advantages will become more apparent from the following detailed description taken in conjunction with the accompanying drawings. Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 is an exemplary configuration diagram of a wireless Internet service system to which the present invention is applied.

The wireless Internet service system shown in FIG. 1 is a wireless extension of an existing Internet system, and includes a wireless terminal 11, an access point (AP 12, 13), a hub 14, a router 15, and network access management. Device 16.

The present invention relates to a method for providing location-based area information to a user's wireless terminal (11) on such a wireless Internet service system.

According to the present invention, in order to provide location-based area information of a subscriber of a high-speed wireless Internet service, a coordinate system must first be unified in order to display a detailed view of a three-dimensional Nespot Zone on an existing two-dimensional commercial electronic map. In addition, two-dimensional POI data and three-dimensional POI data must be mixed to provide a user's desired local information. For this purpose, two-dimensional path data (Network Data) and three-dimensional path data (Network Data) must be geometrically connected.

2 is a diagram illustrating an embodiment of data construction for a method for providing location-based regional information according to the present invention.

FIG. 2 shows an overall view of data construction for providing local information through a Nespot service, a high-speed wireless Internet service to which the present invention is applied.

The data can be divided into three categories, and each category can be divided into two categories, so the data can be classified into six types.

First, you can see the topographic map data.

Nespot Zone Detailed Map is the area where Access Point exists, that is, the area where Nespot service, which is a wireless Internet service, can be provided. It is an area to be built in three dimensions.

Nespot Zone The surrounding area is composed of general digital maps, and when the user searches for local living information in the Nespot Zone, the user will usually find the place they want. An area to be built with more than 1: 1,000 topographic maps used.

Second, you can see the POI data.

POI data is point data that contains business information, both POI data in the Nestpot Zone and POI data around the Nespot Zone. The POI data will generally be constructed structurally and formally. The user will be satisfied with his information based on the POI data, which is the data that requires the most detail and accuracy. It is also the data that the time and manpower are input most in the data construction. It is so important for the services provided to users, and it is also a criterion for judging the quality of location-based local information service.

Third is network data.

As mentioned above, two-dimensional path data (Network Data) is mainly used in the existing GIS market and has been widely used for ITS, CNS, and LBI. Two-dimensional network data is mainly used to calculate the distance to the location of POI data or the shortest route in the two-dimensional commercial electronic map, and is mainly used to use a car. It was used to satisfy needs.

Three-dimensional network data (Network Data) is actually the first use in the present invention, which enables indoor navigation. That is, the data is constructed to enable the technology of the PNS, which has developed the existing CNS, and establishes all the moving lines that can be moved by individuals existing in the detailed view of the Nespot Zone, and if there is an upper floor or a lower floor, By connecting to the copper wire of stairs, elevators, escalators, etc., it is possible to construct 3D network data and provide information using 3D POI data.

As described above, the present invention constructs and provides two-dimensional and three-dimensional data, which is one step further from the simple two-dimensional data display method used in the existing GIS, through the Nespot service, which is a high-speed wireless Internet service, to provide real-world information. I want to provide it correctly.

3 is a diagram illustrating an embodiment of interlocking two-dimensional area information and three-dimensional area information for a method for providing location-based area information according to the present invention.

FIG. 3 is a diagram representing the most basic technology for the present invention and shows a topographical map of a detailed map of Nespot Zone converted to a compatible location coordinate system on a commercial electronic map of the Nespot Zone.

Conventional commercial electronic maps all have a coordinate system and a coordinate. That is, by giving a coordinate system and a coordinate value to the detailed facility diagram, the detailed view of the Nespot Zone can exist together on a commercial electronic map.

In general, the coordinate system used in Korea mainly uses the TM (Transverse Mercator) coordinates. Three reference points are used as the reference point: western origin (125 ° E, 38 ° N), central origin (127 ° E, 38 ° N), and eastern origin (129 ° E, 38 ° N).

It also uses Katck coordinates. The Catech coordinate system is mainly used for traffic maps and uses a single origin (128 ° E, 38 ° N).

If this coordinate system is inputted in the Nespot Zone detail view and an XY coordinate value is inputted, the data will appear in the same position with the specified coordinate system.

4 is a diagram illustrating an embodiment of displaying 3D POI data and 2D POI data in a method for providing location-based regional information for a wireless Internet service user according to the present invention.

4 is shown as an example of a procedure for the presentation of POI data according to the present invention. First, when the Nespot service user accesses Nespot, the user is provided with location information at the place where he is located, or he selects a place of interest and receives information about the location.

Next, when the user searches for the desired POI information according to various search methods, location information and detailed information on the searched POI data are displayed to the user. This is no different from general GIS information provision.

However, in the present invention, the three-dimensional information provision is added to the general two-dimensional information provision. In other words, if the information desired by the user exists in the 2D commercial electronic map, it is the same as the information providing method provided by general GIS, but if the data desired by the user exists in the basement floor or the two or more floors of the building, it is used for the existing GIS information providing method It wasn't.

However, the present invention will provide the information desired by the user regardless of whether the current location of the user is located on the two-dimensional commercial electronic map or on the three-dimensional Nespot Zone.

In the present invention, if the POI data desired by the user exists in the two-dimensional commercial electronic map, the user directly expresses it on the map as in the general GIS information providing method, or the POI data exists only in the database, and if the user desires, the database server (DB Server) : Display the desired POI data on the map in Database Server.

However, the situation is different when the POI data desired by the user exists in three dimensions. Because it was described earlier having the same coordinate system when describing FIG. This is because the POI data in the basement of the building or the POI data in the multi-story of the building exist in the same location. If a building has several tens of floors, the POI data present in the tens of floors will all have the same building coordinates, and if such data are displayed at once, the user will not be able to read the data and thus lose its value as data. Accordingly, in the present invention, when the user desires the three-dimensional POI data, the user does not display the data of the other layer, but only the POI data of the desired layer is displayed, thereby allowing the user to obtain the information on the POI data in detail.

FIG. 5 is a diagram illustrating an embodiment of constructing 3D path data and 2D path data in a method for providing location-based area information for a wireless Internet service user according to the present invention.

FIG. 5 is a diagram illustrating construction of 3D network data of a Nespot Zone and 2D network data of a region around the Nespot Zone according to the present invention.

As described with reference to FIG. 4, data desired by a user may exist in POI data on a two-dimensional commercial electronic map, and may also exist in POI data in a three-dimensional Nespot Zone detailed view. Therefore, it is not possible to provide PNS service, which is an indoor service, such as the shortest distance or simulated driving, using the existing route data method.

The construction of network data used for two-dimensional commercial electronic maps is generally performed like the network data used for ITS or CNS, and there is no problem in providing general information serviced by the existing GIS.

However, the present invention intends to construct network data to enable not only outdoor navigation but also indoor navigation. In order to make such a service possible, the network data used in the 2D commercial electronic map and the network data in the detailed view of the 3D Nespot Zone must be connected in a geometric relationship with each other. Becomes possible. In other words, it is conceivable that the network data exists on an extension line where the network data can be PNS in the building such as the entrance and the exit of the detailed view of the three-dimensional image.

In addition, in the case of the detailed view connected to the basement or duplex, the copper wire is made in consideration of all the paths (steps, elevators, escalators, etc.) that the user can move. Therefore, when the extended path data (Network Data) is stacked like data existing in the double layer, the path data (Network Data) in three dimensions is completed.

In this case, as described in the description of FIG. 3, three-dimensional path data (Network Data) existing in each basement layer or a plurality of layers is present at the same position and thus overlaps. However, the problem of overlapping is solved by managing attributes separately.

Therefore, when the network data is constructed in two or three dimensions as described above, when the user moves from two to three dimensions or when moving from three to two dimensional data, it moves as if in the three-dimensional space of the real world. Will be able to move.

6 is a diagram illustrating an embodiment of elements required for the method for providing location-based area information according to the present invention.

The present invention is to provide a location-based area information service in a high-speed wireless Internet service, for which various elements must be combined as shown in the figure.

First, when the user or the destination is in three-dimensional space, the three-dimensional spatial coordinates must be tracked to find out.

In addition, a three-dimensional route search is required to determine when an expected route is needed between a current location and a destination or a first destination and a second destination in a three-dimensional space.

In addition, when searching for a route, one region needs to be processed on a two-dimensional plane, while another region needs to be interworked with two and three dimensions.

In FIG. 6, the above elements are shown in the drawings.

7A and 7B are diagrams illustrating an embodiment of implementing 3D spatial coordinates in a method for providing location-based area information for a wireless Internet service user according to the present invention.

FIG. 7A illustrates a basic definition of the three-dimensional spatial coordinate implementation, and FIG. 7B illustrates the spatial position in the three-dimensional structure.

Referring to FIGS. 7A and 7B, a three-dimensional spatial coordinate implementation is described as follows.

First, the three-dimensional spatial coordinates are composed of an additional component Z value and height value in addition to the X and Y coordinates that are the basic components of the two-dimensional spatial coordinates.

The Z value represents the vertical distance from the ellipsoid, which is the base of the earth's spatial coordinates, and the height value represents the vertical distance from the earth's surface.

Z- or H-values can be used to represent a three-dimensional space position, and it is preferable to use all values of Z and H in order to express a more precise position or link with two-dimensional coordinates.

It is appropriate to use the H value to express the height of a structure, the height of each floor, etc., and to use the Z value to define the spatial coordinates of GPS-based structures.

Therefore, the basic definition of the three-dimensional spatial coordinates implementation of the present invention is represented by X, Y, Z, H value (coordinate) is also implemented in the coordinate implementation method of the three-dimensional path guide data X, Y, Z, H.

X, Y coordinates and Z values are changed in various ways (Katech projection, TM projection, longitude representation) according to map projection method and coordinate expression method for integration with 2D coordinates, and H value is linked with 2D coordinates. Is always the same without.

When providing a service, the X, Y, and Z values are composed of 4 byte integer type data, and the H values are composed of 2 byte short integer type.

FIG. 8 is a diagram illustrating an embodiment of a data structure and a storage space for representing a 3D spatial structure in the method for providing location-based area information according to the present invention.

The position storage structure belonging to the structure space can be represented by the X, Y and H values of the structure space relative coordinates.

The structure of the Nespot Zone basically includes the Z value and the H value for each floor. The structure and the associated block of the structure are implemented by a three-dimensional path algorithm.

FIG. 9 is a diagram illustrating an example of a structure of three-dimensional route data for three-dimensional route guidance in the method for providing location-based area information according to the present invention.

The 3D path guide is an extension of the 2D path search and is composed of a node, a normal link, and an H link that enables 3D path search. Z links can be used for path searches and guidance in real environments, not structures.

A node is a specific point for changing branches, breaks, restrictions, and attributes on a path. The link defines the position, shape, and direction of the path. All links, including the H link of the present invention, indicate a bidirectional movable path.

Nespot Zone users can access all locations and spaces within the structure through H Links (elevators, escalators, stairs, etc.) and Links (corridors, walkways, etc.).

FIG. 10 is a flowchart illustrating a three-dimensional path search in the method for providing location-based area information for a wireless Internet service user according to the present invention.

First, initialization is performed (1001). In initialization, all previous nodes are set to 0, the node state is set to 1, the node cost is set to 9999999, and the node nlink is made positive.

Next, a start node is set (1002). The n next node (nNextNode) is set as a start node, the cost of the start node is set to 0, and the n node of the start node is made negative and nLink is made a search target.

Then, the current search node is selected (1003). The current search node is selected in the search table, nlink of the current search node is set to a positive number, and deleted from the search table. Also, n status of the current search node is set to 0, and a cost is allocated to the node by checking Ci + Link (i, j)> Cj for a link connected to the current search node. Then, add the allocated node to the lookup table.

Next, the minimum cost node is selected (1004). Select the least cost node in the lookup table (Link, HLink), set it as the next lookup node, and clean up the lookup table.

Then, it is checked whether the destination node has been reached (1005). As a result of the check, if the target node has not been reached, the process 1003 repeatedly selects the current search node.

As a result of checking whether the destination node has been reached, if the destination node is reached, the link is configured to the stored node (1006). That is, the link and the H link are configured as the previous node stored in the search node.

For reference, if the node status (m_npSearchNode.nStatus) is 1, it is an initial state, 0 is a search end indication, and -1 indicates that no search is required.

In addition, if the node search status (m_pNode.nLink) is positive, it is the initial state.

11A to 11C are diagrams illustrating an embodiment of 3D path search in a method for providing location-based area information for a wireless Internet service user according to the present invention.

In FIGS. 11A to 11C, FIG. 10 is described with reference to the drawings. First, FIG. 11A illustrates how the three-dimensional path search algorithm is implemented, and FIG. 11B shows a change in the node table. 11C shows the change in node cost.

11A to 11C, it is a path search from node 1 to node 4, and after the start node is set to 1 and started, the node table is changed as the current search node is gradually changed to 2, 3, and 4 nodes. It can be seen that, as node costs change, the corresponding path is searched.

12 is a diagram illustrating an embodiment of coordinate interworking in the method for providing location-based area information for a wireless Internet service user according to the present invention.

In the present invention, two-dimensional coordinates and three-dimensional coordinates are linked.

Coordinate linkages for basic map coordinates and three-dimensional spatial structures (eg Nespot Zones) use the XY key.

It is connected to the map coordinates based on the origin of the spatial structure. The coordinates in the spatial structure use the XYZH value.

Spatial structure coordinates 0,0 are coordinates on the map on which the structure is located on the earth's surface and use relative meter coordinates at the origin of the structure, regardless of which projection and coordinate system the electronic map uses.

The layer coordinates of the structure, also specified as the change in H value at the spatial structure origin.

The coordinate interworking will be described with reference to FIG. 12 as follows.

The coordinates on the user's spatial structure, ie the X, Y, H coordinates from the structure origin (0, 0), are (X8, Y3, H4) meters.

The coordinates of the user's actual map, that is, the coordinates of the spatial structure, plus the coordinates of the spatial map's origin, are the longitude and latitude (128 degrees 36 minutes 26 seconds + 8 meters, 36 degrees 23 minutes 52 seconds + 3 meters). It is the sum of Z value and H value of. Here, the Z value of the origin is 98 meters.

13A to 13C illustrate an embodiment of a method for providing location-based area information for a wireless Internet service user according to the present invention.

In FIG. 13A, the application of the three-dimensional spatial coordinates in the present invention is briefly shown. In FIG. 13B, the three-dimensional path search is briefly shown in the present invention. In addition, in FIG. 13C, the linkage between the two-dimensional space coordinates and the three-dimensional space coordinates is briefly shown.

14A and 14B are flowcharts of an embodiment of a method for providing location-based area information for a wireless Internet service user according to the present invention.

The present invention is to provide information to the user based on this after the two-dimensional and three-dimensional data is interlocked as described above.

Referring to the present invention based on Figure 14a and 14b as follows.

First, a drawing data linking two-dimensional and three-dimensional terrain is constructed with a spatial coordinate system linking two and three dimensions (1401).

Next, a point of interest (POI) data is constructed 1402 having a spatial coordinate system linking two and three dimensions. Based on this, path data for all moving lines in 2D and 3D are constructed (1403). This is the information shown in FIGS. 3 to 5.

In response to the request for information provision from the user of the high speed wireless Internet service (1404), it is checked what information the user requested (1405). As a result of the check, if the user's request is a location request for a specific point of interest, that is, a POI data request, it is checked whether the user's request is a point of interest located on two dimensions (1406).

As a result of checking whether the user's request is a point of interest located in two-dimensional space, if the request is for a point located in two-dimensional space, location information about the point of interest requested by the user is provided on the two-dimensional electronic map (1407). ). Of course, location information on other points that can be represented on the 2D electronic map can be provided together.

As a result of checking whether the user's request is a point of interest located in two-dimensional space, if the request is for a point located in three-dimensional space instead of a point located in two-dimensional space, In operation 1408, location information about the point of interest requested by the user on the dimensional detail view is provided. In this case, location information on the floor corresponding to the point of interest requested by the user, that is, other points located at the same height may also be provided.

As a result of confirming what information is requested from the user of the high-speed wireless Internet service, if it is a path information request, it is analyzed whether the interworking between the 2D data and the 3D data is necessary (1409). As a result of the analysis, if the interworking between the 2D data and the 3D data is not necessary, it is checked whether the path search requested from the user is the path search in 2D (1410).

As a result of checking whether the path search requested from the user is a path search in 2D, if the path search is in 2D, the path requested by the user is searched with 2D data (1411), and the 2D electronic map and 3D are searched. The route information is provided through the 2D electronic map portion of the electronic map to which the details are linked (1414).

As a result of checking whether the path search requested from the user is the path search in 2D, if the path search in 3D is not the path search in 2D, the path requested by the user with the 3D data is searched (1412). In operation 1414, route information is provided through the 3D detail view portion of the electronic map in which the 2D electronic map and the 3D detail map are linked. In this case, the 3D path search is performed according to the path search method as described above with reference to FIGS. 10 to 11C.

As a result of analyzing whether the request of the path information from the user requires the interworking of the 2D data and the 3D data, if the 2D data and the 3D data need to be linked, the path search in 2D and the path search in 3D are performed. The optimal route is searched for in isolation and in parallel (1413), and the route information is provided on the electronic map in which the two-dimensional and three-dimensional details are linked to the searched route (1414).

The present invention described above is not limited to the above-described embodiments and the accompanying drawings, and various substitutions, modifications, and changes are possible in the art without departing from the technical spirit of the present invention. It will be clear to those of ordinary knowledge.

The present invention as described above has the effect of providing the corresponding location information at the request of the wireless Internet service user by linking the two-dimensional location information and the three-dimensional location information.

In addition, the present invention can be applied to a variety of platforms, such as a PDA (PDA), a notebook for subscribers of high-speed wireless Internet service, there is an effect that can be carried by the user.

That is, the present invention can greatly improve the efficiency of the system for each of various general applications utilized in the living through the mobile platform, there is an effect that enables functions that are not possible on a fixed platform.

In addition, the present invention, in the region where the high-speed wireless LAN is installed to develop a location-based local information service in the existing two-dimensional method can receive two-dimensional and three-dimensional information at the same time, through which the technology of expressing the real world of GIS There is an effect that can show the true appearance.

In addition, the present invention, as well as route guidance using the location-based area information service has the effect that the user can send the location information to another person by setting an appointment place.

In addition, the present invention also has a target marketing service that utilizes a region capable of providing two-dimensional and three-dimensional location information and its surroundings capable of providing two-dimensional location information.

Claims (9)

In the information providing method applied to the wireless Internet service system, A first step of interlocking data in two-dimensional space and data in three-dimensional space with spatial coordinates linking two and three dimensions; Receiving information about a point of interest (POI) from a user of the wireless Internet service system and providing detailed information by mixing two-dimensional point of interest (POI) data and three-dimensional point of interest (POI) data; Two steps; And Receiving a path information on the POI from a user of the wireless Internet service system, searching for a path based on a 2D spatial coordinate and a 3D spatial coordinate linked thereto, and providing path information requested by the user; 3 steps Location-based local information providing method for a wireless Internet service user comprising a. The method of claim 1, The first step is, A fourth step of linking two-dimensional topographical data and three-dimensional topographical data based on the spatial coordinates linking the two and three dimensions; A fifth point of linking the POI data that can be represented on the 2D topographical map and the POI data that can be represented on the 3D topographical map based on the spatial coordinates linking 2D and 3D step; And Based on the spatial coordinates linking the 2D and 3D, the paths of the 2D and 3D POI data can be searched for not only the moving lines on the 2D topographical map but also the moving lines on the 3D. Sixth Step to Build Network Data Location-based local information providing method for a wireless Internet service user comprising a. The method of claim 2, Constructing path data (Network Data) for the copper wire on the three-dimensional, 2. A method of providing location-based regional information for a user of a wireless Internet service, comprising moving lines for indoor navigation such as stairs, an elevator, or an escalator in the 3D space. The method of claim 1, The three-dimensional point of interest (POI) data, A method of providing location-based local information for a wireless Internet service user, which retains its own coordinate value and is displayed only when the POI data requested from the user exists on a height plane in which the user is requested. The method of claim 1, wherein The second step, Receiving a request for information on a point of interest (POI) from a user of the wireless Internet service system and checking whether the point of interest is located on the three-dimensional topographical map; As a result of the checking of the fourth step, if the POI is located on the three-dimensional topographical map, information about the POI is provided on the topographic map, while the POI is located on the same height plane as the POI. A fifth step of providing together other points of interest data and points of interest data on the representable two-dimensional plane; And As a result of the checking in the fourth step, when the POI is located on the two-dimensional topographical map, the sixth step of providing information on the POI on the topographic map together with other point of interest data that can be expressed Location-based local information providing method for a wireless Internet service user comprising a. The method according to any one of claims 1 to 5, The third step, A seventh step of receiving a request for providing path information on the POI from the user of the wireless Internet service system and analyzing whether the request from the user is a path on the same dimension; An eighth step of searching for a route requested by the user on the corresponding dimension and providing the corresponding route information through the topographic map of the corresponding dimension if the analysis result of the seventh stage is a route on the same dimension; And As a result of the analysis of the seventh step, if the path is not on the same dimension, the path search on the 2D and the path search on the 3D are performed and connected to provide path information through the linked 2D and 3D topographic maps. Ninth step Location-based local information providing method for a wireless Internet service user comprising a. The method of claim 6, The eighth step, As a result of analyzing whether the request for providing route information from the user to the point of interest (POI) is a route on the same dimension, and if the route providing request between points of interest (POI) on the same dimension is a corresponding route, the route is a two-dimensional route. Checking a tenth step; As a result of the check in the tenth step, an eleventh step of identifying a path to a point of interest requested by the user according to a given two-dimensional path search technique and providing the path to the user through the two-dimensional topographical map according to a given two-dimensional path search technique; ; And As a result of the check in the eleventh step, a twelfth step of identifying a path to a point of interest requested by the user according to a given three-dimensional path search technique and providing the path to the user through the three-dimensional topographical map according to a given three-dimensional path search technique; Location-based local information providing method for a wireless Internet service user comprising a. The method of claim 6, The ninth step, As a result of analyzing whether the request for providing route information from the user to the point of interest (POI) is a route on the same dimension, if it is not a request for providing a route between points of interest (POI) on the same dimension, a two-dimensional route search section and A tenth step of subdividing into a three-dimensional path search section; An eleventh step of searching for a path for the two-dimensional path search section and the three-dimensional path search section according to a given path search technique of a corresponding dimension; A twelfth step of acquiring an optimal path by interlocking a path for the two-dimensional path search section and the three-dimensional path search section searched using the entrance or the exit of the three-dimensional space as a connection point; And A thirteenth step of providing the obtained route information to the user through a linked two-dimensional and three-dimensional topographic map; Location-based local information providing method for a wireless Internet service user comprising a. In a wireless Internet service system having a processor, Based on a request for providing information on a point of interest (POI) from the user of the wireless Internet service system, based on the data on the two-dimensional space and the data on the three-dimensional space linked with the spatial coordinates connecting the two-dimensional and three-dimensional, A first function of providing detailed information by mixing two-dimensional POI data and three-dimensional POI data; And The path is based on the data in the two-dimensional space and the data in the three-dimensional space interlocked with the spatial coordinates linking the two-dimensional and three-dimensional by receiving a request for providing the path information for the point of interest (POI) from the user of the wireless Internet service system A second function of searching for and providing route information requested by the user A computer-readable recording medium having recorded thereon a program for realizing this.