KR100908389B1 - Location-based Local Information Provision Method for Wireless Internet Service Users - Google Patents

Abstract

The present invention relates to a method for providing location-based area information for a user of a wireless Internet service. The present invention relates to a method of providing location-based area information for a wireless Internet service user. To provide location-based local information providing method for users.

To this end, the present invention comprises a data interlocking step of interlocking data in two-dimensional space and data in three-dimensional space with spatial coordinates connecting two and three dimensions; Providing location information for providing location information on POI data from a user of the wireless Internet service system by using 2D POI data and 3D POI data. ; And receiving path information on a point of interest (POI) from a user of the wireless Internet service system and providing path information by searching for a path based on a 2D spatial coordinate and a 3D spatial coordinate linked to the 2D spatial coordinate. It includes a route information providing step, and is used for high-speed wireless Internet service.

Description

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

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

The present invention relates to a method of providing location-based regional information for a user of a wireless Internet service. In particular, the present invention provides detailed local information and location to a user of a wireless Internet service by constructing an information providing method used for location-based local information guide service and constructing local information data. The present invention relates to a method of providing location-based local information for a wireless Internet service user who provides information.

In particular, three services can be provided using the present invention. First, a three-dimensional detailed view of a specific location may be displayed together on a conventionally used two-dimensional digital map. Second, the user can search for two-dimensional point of interest (POI) data and three-dimensional POI data at the same time, and provide information regardless of whether the user searches two-dimensional or three-dimensional. can do. Third, the user can receive the desired location-based area information without distinguishing between the two-dimensional electronic map and the three-dimensional detailed map for the specific location by using the two-dimensional network data and the 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 also 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, location recognition in facilities is set in various ways such as "XY coordinates + floor", "Room No. + floor", "Block name + XY coordinates". Can be. In addition, the spatial movement may also be a movement between layers and 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, location guide service, etc., and it is necessary to develop a separate extension technology.

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

Therefore, the present invention incorporates new technologies 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. May be

Around the Nespot Zone is the surrounding area of 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, which is commonly used in the field of GIS, usually refers to point data for stores including business information. POI data in the GIS field is time-consuming and expensive to build, and has a great influence on the quality of 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 conventional 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 route data (Network Data) is used in existing electronic maps, and is generally used to represent traffic information such as Intelligent Transportation System (ITS), Car Navigation System (CNS), and Location Based Information (LBI). . Therefore, the purpose of the construction was mainly used for route guidance service or optimal route guidance service using a car. Two-dimensional route data (Network Data) used in the present invention is based on the 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, which may vary from case to case.

Three-dimensional network data is unfamiliar in the field of GIS, which is an important part of the present invention by using the three-dimensional detail and three-dimensional POI data to describe the Nespot Zone. Information retrieval including dimensions and three dimensions is 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 move using stairs, elevators, and escalators even in the basement or duplex floors. You will also establish a route to the lower floors. 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 GIS, a technology that expresses the real world, there is a problem that a technology closer to the real world is required.

The present invention has been proposed in order to solve the above-mentioned problems, and provides a wireless Internet service user who provides a corresponding type of local information at the request of a service user by linking two-dimensional location information and three-dimensional location information. The purpose is to provide a location-based local information providing method for.

The present invention for achieving the above object, in the information providing method applied to the wireless Internet service system, having a coordinate of the coordinates of the two-dimensional and three-dimensional data interlocking data in two-dimensional space and data in three-dimensional space Interlocking step; Providing location information for providing location information on POI data from a user of the wireless Internet service system by using 2D POI data and 3D POI data. ; And receiving path information on a point of interest (POI) from a user of the wireless Internet service system and providing path information by searching for a path based on a 2D spatial coordinate and a 3D spatial coordinate linked to the 2D spatial coordinate. And providing path information.

delete

A feature of the present invention is the above-mentioned method for expressing POI data for three-dimensional (basement and multi-storey building) data that 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.

As shown in FIG. 1, a wireless Internet service system to which the present invention is applied is a wireless extension of an existing Internet system, and includes a wireless terminal 11, an access point (AP) 12, 13, and a hub 14. , A router 15 and a network connection 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 the 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 classification can be divided into two, so that the data can be classified into six types.

First, you can see the topographic map data.

Nespot Zone detailed view is an area where Access Point exists, that is, an area where Nespot service, which is a wireless Internet service, can be provided. It is an area to be constructed in three dimensions.

Nespot Zone Map is a region composed of general digital maps. When users find local living information in Nespot Zone, they will usually find the place they want. This is an area to be constructed with more than 1: 1,000 topographic maps.

Second, you can see the POI data.

POI data is point data that contains business information, either POI data in the Nestpot Zone or POI data around the Nespot Zone, and will generally be constructed structurally and formally. . The user will be satisfied with his information based on this POI data, which is the most demanding data detail and accuracy. In addition, POI data is also the data that the most time and manpower is put into the construction of the data. POI data is so important in the services provided to users, and it is also a standard for determining the quality of location-based local information service.

Third, there is network data.

As described 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 used for the first time in the present invention, allowing for 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, a high-speed wireless Internet service, to provide information of the real world. 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 into a compatible location coordinate system on a commercial electronic map around 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 map, 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 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 Kate coordinates. The Catech coordinate system is mainly used for traffic maps and uses a single origin (128 ° E, 38 ° N).

If the coordinate system is inputted to the Nespot Zone detail and the XY coordinate value is inputted, the data is displayed at the same position with the designated 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 illustrates an example procedure for presentation of POI data according to the present invention. First, when the Nespot service user accesses Nespot, the user is provided with location information on a place where he is located, or selects a place of his interest and receives information on a corresponding selected location. will be.

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 3D information providing function is added to the general 2D information providing. In other words, if the information desired by the user exists in the two-dimensional commercial electronic map, it is the same as the information providing method provided by the general GIS, but if the data desired by the user exists in the basement floor or the two or more floors of the building, Provides location information by adding dimension information provision function.

That is, the present invention will provide 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, when the POI data desired by the user exists in a two-dimensional commercial electronic map, the user directly expresses it on a map like a general GIS information providing method, or when the POI data exists only in a database and 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, in the previous description of Figure 3 it has been described as having the same coordinate system. 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 the building reaches tens of floors, the POI data present in the tens of floors will all have the same building coordinates, and if such data is displayed at once, the user will not be able to read the data, and thus the value as data will be lost. Therefore, 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 of a three-dimensional Nespot Zone detailed view. Therefore, it is not possible to provide PNS service, which is an indoor service, such as 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, in the present invention, it is intended to construct network data to enable not only outdoor navigation but also indoor navigation. In order to enable such service, 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. Service becomes possible. In this case, it is conceivable that the network data of the two-dimensional image exists on an extension line where the PNS in the building, such as the entrance and the exit of the detailed view of the three-dimensional image, is possible.

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, overlapping problems can be solved by managing properties separately.

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

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 local information service in a high-speed wireless Internet service, for this purpose, various elements must be combined as shown in FIG.

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 path search is required in order to grasp when an expected path 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 area needs to be processed on a two-dimensional plane, while another area needs to have a method of linking 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 further include a Z value and a height value H, which are additional components, in 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 basic base of the earth's spatial coordinates, and the height value represents the vertical distance from the earth's surface.

It is possible to express the three-dimensional space position using the Z value or the H value, and it is preferable to use both Z and H values in order to express a more precise position or interwork 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 values, and the coordinate implementation of the three-dimensional route guidance data is also implemented by X, Y, Z, and 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 representation method for integration with 2D coordinates. It is always the same without a connection with.

When providing a service, the X, Y, and Z values consist of 4 byte integer type data, and the H value consists of 2 bytes 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 expressed by the X, Y and H values of the structure space relative coordinates.

The structure of the Nespot Zone basically includes a Z value and a 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 consists 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. Links define the location, 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 (hallways, passageways, etc.).

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 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 set to a negative number, and set as a search target.

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. In addition, 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 nodes 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.

It then checks 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 an initial state, and if it is negative, it is a node to be searched.

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.

Referring to FIGS. 11A to 11C, it shows 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 changed to nodes 2, 3, and 4 in order. 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, and the coordinates in the spatial structure use XYZH values.

Spatial structure coordinates 0,0 are coordinates on the map where 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 is used on the electronic map.

The layered coordinates of the structure are 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.

As described above, the present invention provides information to a user based on the two-dimensional and three-dimensional data.

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 on 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 also be provided.

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 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 the user can carry.

 That is, the present invention can greatly improve the efficiency of the system for each of various general uses utilized in life through the mobile platform, and has the effect of enabling functions that are not possible on the fixed platform.

In addition, the present invention, in the region where the high-speed wireless LAN is installed can develop a location-based local information service in the existing two-dimensional method to provide two-dimensional and three-dimensional information at the same time, through which the technology of representing 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 a location-based local information service has the effect that the user can determine the place of the appointment to send the location information to other people.

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 data interlocking step of interlocking data in two-dimensional space and data in three-dimensional space with spatial coordinates linking two and three dimensions; Providing location information for providing location information on POI data from a user of the wireless Internet service system by using 2D POI data and 3D POI data. ; And It is requested by the user of the wireless Internet service system to provide the path information for the point of interest (POI) to provide the path information by searching the path based on the two-dimensional space coordinates and the three-dimensional space coordinates linked to the two-dimensional space coordinates Route Information Provisioning Steps Location-based local information providing method for a wireless Internet service user comprising a. The method of claim 1, The data interworking step, Linking two-dimensional topographical data and three-dimensional topographical data based on spatial coordinates linking the two and three dimensions; Interlocking POI data that can be represented on a two-dimensional topographical map and POI data that can be represented on a three-dimensional topographical map based on spatial coordinates linking two-dimensional and three-dimensional; And Based on the spatial coordinates linking two-dimensional and three-dimensional, the route data for the moving line on the three-dimensional topographic map as well as the moving line on the two-dimensional topographic map to enable the path search between two-dimensional and three-dimensional POI data Path data construction stage for building network data Location-based local information providing method for a wireless Internet service user comprising a. The method of claim 2, The route data building step, Method for providing location-based local information for wireless Internet service users, comprising constructing route data including network information for indoor navigation such as stairs, elevators, or escalators in a three-dimensional space . The method of claim 1, The three-dimensional point of interest (POI) data, And only three-dimensional point of interest (POI) data on a plane of a height at which the point of interest (POI) data requested from the user is present is displayed. The method of claim 1, The location information providing step, Confirming whether a point of interest is located on a 3D topographic map by receiving a request for providing location information on a point of interest (POI) from a user of the wireless Internet service system; When the point of interest POI is located on the three-dimensional topographical map, other points of interest on the plane of the same height as the point of interest POI are provided while providing position information on the three-dimensional topographic map. Providing point data and point of interest data on a representable two-dimensional plane together; And When the point of interest POI is located on the two-dimensional topographic map, the step of providing the location information of the point of interest POI on the two-dimensional topographic map is provided 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 path information providing step, An analysis step of receiving a request for providing path information on a point of interest (POI) from a user of the wireless Internet service system and analyzing whether the request from the user is a path on the same dimension; A first route information providing step of searching for a route on a corresponding dimension and providing the same through a topographic map of the corresponding dimension if the analysis result of the analyzing step is a route on the same dimension; And As a result of the analysis in the analysis step, if the path is not in the same dimension, the second path information for providing path information through the topographic map of the two-dimensional and three-dimensional linkage by performing a path search in two dimensions and a path search in three dimensions Deliver Step Location-based local information providing method for a wireless Internet service user comprising a. The method of claim 6, The providing of the first path information may include: A check step of checking whether the corresponding path is a path in two dimensions if the analysis result of the analyzing step is a request for providing a path between points of interest on the same dimension; If the result of the checking in the checking step is a path in two dimensions, identifying a path to a point of interest requested by the user according to a given two-dimensional path searching technique and providing the path to the user through a two-dimensional topographical map; And As a result of the checking in the checking step, if the path is in a three-dimensional path, identifying a path to a point of interest requested by the user according to a given three-dimensional path search method and providing the path to the user through a three-dimensional topographical map; Location-based local information providing method for a wireless Internet service user comprising a. The method of claim 6, The providing of the second path information may include: Subdividing into two-dimensional path search sections and three-dimensional path search sections unless the request for providing a path between points of interest (POIs) on the same dimension is determined as a result of the analysis; Searching for a path for a 2D path search section and a 3D path search section according to a given path search method of the corresponding dimension; Obtaining an optimal path by interlocking paths for the searched two-dimensional path search section and the three-dimensional path search section by using an entrance or an exit of a three-dimensional space as a connection point; And Providing the obtained route information to the user through a topographic map of two-dimensional and three-dimensional linkage. Location-based local information providing method for a wireless Internet service user comprising a. delete

Images