KR20100062073A - Method and apparatus for providing poi information in location based services - Google Patents

Abstract

PURPOSE: An interest point information providing method in a location based service and a device thereof are provided to offer more flexible and soft service to user by offering representative interest point information with user location information. CONSTITUTION: Location information of a user terminal positioned from a positioning system is received(S10). Search radius information is extracted by using the information(S20). The extracted search radius range above is corrected according to positioning accuracy information(S30). A decided search radius range is applied to an interest point DB and a POI(Point Of Interest) is searched(S60). All POIs existing within the corresponding range are extracted(S70). A representative POI to be offered to a user terminal is decided among the extracted POIs(S80).

Description

Method and apparatus for providing POI information in location-based services

The present invention relates to a geographic information system of a location-based service, and more particularly, to a method and apparatus for providing point of interest information in a location-based service.

With the recent rapid development of electronic engineering and communication engineering, mobile communication terminals have various functions. That is, with the rapid development of wireless communication and data processing technology, people can use not only voice calls but also Internet access, video communication and video message transmission using mobile communication terminals. In addition, due to the rapid dissemination of mobile communication terminals, mobile communication terminals have become an essential means of communication in modern life, such as a considerable amount of communication occurring in human relationships through mobile communication terminals.

Among various additional services other than the voice call service, various information retrieval services provided by accessing a search server of a mobile communication system are increasing. In addition, as navigation systems using mobile communication terminals are gaining in popularity, various geographical information and destination information retrieval services have been developed.

Recently, a location based service (LBS) for a mobile communication terminal, a navigation terminal, or a telematics device has been variously developed. By using the location-based service, a service for measuring the current location of the user on the geographic information provided to the terminal device and displaying it on the map information is widely used as a location search and navigation service. In this way, the geographic information provided to the terminal is provided through a geographic information system (GIS), and when the user's location information is provided, the geographic information is displayed along with the main point of interest information.

In the past, this point of interest information is usually provided in a fixed form. In addition, in consideration of the fact that all the main point of interest information cannot be displayed, a representative point of interest with high recognition is displayed. That is, all points of interest information is not displayed in view of the limitation of the display screen size of the mobile communication terminal or the visibility that the user can recognize at a glance. As a method of extracting the representative points of interest, in the past, the main building located closest to the address value for the coordinates coordinated so that the user recognizes the measured value when the positioning occurs using the mobile communication network or GPS. The information was extracted to the point of interest and provided.

When the existing representative point of interest information providing method selects a building name with high recognition to users, the point of interest that is too far from the user's current location may be selected. On the contrary, if the name of the building is less well known, the distance error between the actual location and the selected point of interest can be reduced, but the name of the building that is not recognized by the users is provided, diluting the original purpose of providing the representative point of interest. There is a problem that the quality of the location-based services is considerably degraded.

Accordingly, the present invention has been made to solve the above problems, to provide a method and apparatus for more effectively extracting, selecting and providing a representative point of interest provided with geographic information according to the location of the user. The purpose is.

Further objects and advantages of the present invention can be understood by the following description, and will be more clearly understood by the embodiments of the present invention. Also, it will be readily appreciated that the objects and advantages of the present invention may be realized by the means and combinations thereof indicated in the claims.

In order to achieve the above object, a method of providing point of interest information in a location-based service according to the present invention provides point of interest (POI) information using a geographic information system in a location-based service for a user terminal. A method comprising: (a) receiving location information of a user terminal positioned from a location system; (b) extracting search radius information corresponding to the received location information from the search radius database in which the range of the search radius is set according to the location information on the geographic information and determining the search radius range; And (c) searching for points of interest included in the determined search radius range based on the received location information in the stored points of interest database, in which information of points of interest in the geographic information is divided into priorities, and selecting points of interest having high priority. And extracting and determining the representative point of interest.

According to another aspect of the present invention, an apparatus for providing Point of Interest (POI) information using a geographic information system in a location-based service for a user terminal, the location information of the user terminal in conjunction with the positioning system Positioning information receiving means for receiving; Search radius determining means for extracting search radius information corresponding to the received position information from a search radius DB to determine a search radius range; Representative point of interest determining means for searching for points of interest included in the determined search radius range based on the received location information in the point of interest DB to extract a point of interest having a higher priority and to determine the point of interest as a representative point of interest; Point of interest providing means for providing the determined representative point of interest to a user terminal; And a storage means for storing and managing a DB of interest, in which a search radius of the search radius is set according to the location information on the geographic information, and information of points of interest on the geographic information, divided into priorities and stored. An apparatus for providing branch information is provided.

According to the present invention, when providing location-based services, by extracting and providing the closest and most representative representative point of interest information together with the user location information, it provides the effect that the user can easily grasp the location information.

In addition, when the representative point of interest is provided, the representative point of interest is extracted in consideration of the current location information of the user and the accuracy information of the position location, and thus, a more flexible and flexible service can be provided to the user.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. Prior to this, terms or words used in the specification and claims should not be construed as having a conventional or dictionary meaning, and the inventors should properly explain the concept of terms in order to best explain their own invention. Based on the principle that can be defined, it should be interpreted as meaning and concept corresponding to the technical idea of the present invention. Therefore, the embodiments described in the specification and the drawings shown in the drawings are only the most preferred embodiment of the present invention and do not represent all of the technical idea of the present invention, various modifications that can be replaced at the time of the present application It should be understood that there may be equivalents and variations.

1 is a diagram illustrating a network configuration in which a method for providing point of interest information is implemented in a location-based service according to an embodiment of the present invention.

As shown in FIG. 1, the network configuration in which the present invention is implemented includes a user terminal 300 capable of mobile communication and location determination, and a location based service (LBS) providing a location based service to the user terminal 300. The geographic information system 200 including the system 210, the positioning system 250, and the apparatus for providing a point of interest 100 is connected through a mobile communication network.

The user terminal 300 is a terminal device having a wireless communication function that a user can carry and carry. The user terminal 300 corresponds to a mobile communication terminal device, a navigation terminal device, a telematics device, and the like, which can communicate with each other through a mobile communication network. In addition, the user terminal 300 can determine the current position of the terminal through the positioning system 250 of the mobile communication system, it may be provided with its own GPS module to support the position measurement. In addition, the user terminal 300 may be provided with various location-based services through the LBS system 210 to be described later.

Geographic Information System (GIS) 200 is an information system that analyzes and processes geospatial data and provides geographic information to terrain-related technical fields such as traffic and communication. The geographic information system 200 may include an LBS system 210, a positioning system 250, a point of interest (POI) providing apparatus 100, and the like.

The LBS system 210 is a service system that provides various services to a user based on location information obtained through a mobile communication network system or GPS. In addition, by providing geographic information together with the location information of the user terminal among the services provided by the LBS system 210, the user can determine the current location of the user on the map, in conjunction with this to confirm the destination to the destination For example, the service that can be used by grasping the path of the service.

The location positioning system 250 is a system for measuring and grasping current location information of a user terminal through a mobile communication network system or a GPS. The positioning system 250 measures and provides location information of the terminal according to the positioning request of the terminal in the user terminal or other service providing nodes. There are a number of positioning methods, a method using a mobile communication network is a method of measuring the position using the base station that the user terminal is currently connected or the cell information of the base station. In addition, there is a method of measuring location information through GPS satellites. In this case, the positioning system 250 provides positioning accuracy information together with the position information when positioning the user terminal. This is because an error range exists in the location information.

The apparatus for providing a point of interest 100 serves to provide information on major points of interest in the vicinity together with location information of a corresponding user when providing a location-based service to a user terminal. The point of interest (POI) is data that displays major facilities, stations, airports, terminals, hotels, etc. on a geographical information on an electronic digital map. The user may grasp the surrounding area and recognize the current location through the point of interest information provided by the point of interest providing apparatus 100. That is, geographic information can be easily identified through well-known building or station information, and the current location information provided can be easily recognized through spatial perception ability. The apparatus for providing a point of interest 100 according to the present invention may easily identify point of interest information by a user when providing a location-based service, and extract and select representative point of interest information close to a current location of the user.

Hereinafter, the configuration of the apparatus for providing a point of interest 100 will be described in more detail.

2 is a diagram illustrating a configuration of an apparatus for providing point of interest information in a location-based service according to an embodiment of the present invention.

Referring to FIG. 2, the apparatus for providing point of interest information 100 according to the present invention includes a location information receiving module 110, a search radius determining module 120, a representative POI determining module 130, a storage module 140, and a POI. Providing module 150, civil processing module 160, and the like.

The positioning information receiving module 110 serves to receive the location information of the corresponding user terminal from the positioning system 250 that measures and provides the location information of the user terminal. The positioning information receiving module 110 receives positioning accuracy information together with the current position information of the user terminal from the positioning system 250. For example, the received position information includes coordinate values consisting of an x-axis and a y-axis. In addition, the positioning accuracy information may be, for example, consisting of radial distance information as an error tolerance range of the position information provided.

The search radius determination module 120 determines a range from which point of interest information is extracted from geographic information. The search radius determining module 120 includes a search radius extracting unit 122 and a search radius correcting unit 124. The search radius extracting unit 122 extracts a radius range to be searched from the search radius DB 142 according to the position information of the user terminal received by the positioning information receiving module 110. The search radius DB 142 is a database in which a search radius range is set and stored according to each position on the geographic information. More detailed configuration of the search radius DB 142 will be described in detail in the storage module 140 to be described later.

The search radius correcting unit 124 determines a final search radius range by correcting the search radius range extracted by the search radius extracting unit 122 according to the accuracy information received by the positioning information receiving module 110. Do this. The correction process is performed to adjust the search range by reflecting the positioning accuracy to the extracted search radius range. That is, the correction process is a process of expanding or reducing the extracted search radius range according to the received positioning accuracy information. For example, if the received positioning accuracy is high, the error range of the position information is small, so that a correction process for reducing the extracted search radius range is performed. On the other hand, if the positioning accuracy is low, the error range of the location information is large, and thus a correction process for extending the extracted search radius range is performed.

In addition, the search radius determination module 120 in another embodiment to set and store the search radius range according to the position information and the accuracy information in the search radius DB 142, the search radius range according to the position information and positioning accuracy information You can also configure so that it can be extracted at once. That is, the final search radius range may be extracted by inputting two pieces of location information and accuracy information using the search key in the search radius DB 142. This can be implemented by performing an accuracy correction process in advance and making a database of the search radius range according to the result.

The representative POI determination module 130 extracts POIs having a high priority among POIs within a predetermined range from geographic information through POIs divided into priorities and stored therein, and determines them as representative POIs. do. In this case, the predetermined range applies the search radius range determined by the search radius determination module 120. The representative POI determination module 130 includes a radius POI search unit 132, a priority POI extractor 134, a radius range change processor 136, and the like.

The radius POI search unit 132 searches for POIs existing within a predetermined range on the geographic information. The radius POI search unit 132 searches for and extracts POIs included in the search radius range determined by the search radius determination module 120 based on the location information on the geographic information. At this time, all POIs included in the range are searched and extracted.

The priority POI extractor 134 analyzes the priority of the extracted POIs and distinguishes and extracts the POIs having high priority. In this case, the service manager or the user terminal may set the number of POIs to be extracted as priorities. That is, the priority POI extractor 134 extracts the set number in the order of priority. The POIs extracted and selected by reflecting the priorities are determined as the representative POIs within the corresponding range.

The radius range change processing unit 136 performs a role of arbitrarily changing the determined search radius range according to a user's request or a matter set in a user terminal. That is, when a request for changing the search radius range of the user is received or when a setting for changing the range exists in the user terminal, the radius range searched by the POI search unit 132 within the radius may be changed. This is used when the user is familiar with the region or when the user needs a particularly detailed POI. On the contrary, when the user cannot recognize the provided representative POI, it may be used when the representative POI is to be provided for a wider range.

The POI providing module 150 serves to provide the representative POI information determined together with the geographic information to the user terminal. The POI providing module 150 includes a map extractor 152, an address extractor 154, a geographic information provider 156, and the like. The map extractor 152 extracts local map information corresponding to the location of the user terminal from the map DB 148 in which the local map information on the geographic information is stored. The address extractor 154 extracts local address information corresponding to the location of the user terminal from the local address DB 146 in which the local address information on the geographical information is stored.

The geographic information provider 156 serves to provide the user terminal with the representative POI information determined together with the geographic information corresponding to the location information of the user terminal. In addition, the geographic information provider 156 may provide the map information extracted by the map extractor 152 together with the address information extracted by the address extractor 154.

The civil processing module 160 performs a role of updating the priority according to the recognition of the representative POI by analyzing the content of the civil affairs generated in the representative POI providing service. That is, it collects the recognition of the representative POI of the user to reset the priority of the recognition or change the process. Through this, it is possible to improve the recognition satisfaction of the representative POI. The complaint processing module 160 includes a complaint receiver 162 and a priority updater 164. The complaint receiver 162 serves to receive complaint information about the recognition of the representative POI from service users through a mobile communication network or the Internet. The priority updater 164 reflects the priority of the POI when there is a change in the recognition of the POI in the received complaint information.

The storage module 140 stores the search radius information and the point of interest information as a database, stores the information, and manages the same. The storage module 140 manages a search radius DB 142, a point of interest DB 144, a local address DB 146, a map DB 148, and the like. The search radius DB 142 is a database in which a search radius range is set according to location information on geographic information. The search radius DB 142 is used when the search radius range is determined by the search radius determination module 120. The point of interest DB 144 is a database in which points of interest (POIs) of geographic information are classified and stored in priority order. The point of interest DB 144 is used when the representative POI determination module 130 determines the representative POI. In addition, the point of interest DB 144 sets the radius range in consideration of the specificity for each administrative area including the location information on the geographic information.

The area address DB 146 is a database in which area address information for each location on the geographic information is stored. The local address DB 146 is used when extracting a local address from the POI providing module 150. The map DB 148 is a database in which map information for each location on the geographic information is stored. The map DB 148 is used at the time of map extraction in the POI providing module 150.

3 is a flowchart illustrating a procedure for providing point of interest information in a location-based service according to an embodiment of the present invention.

Referring to FIG. 3, first, a procedure of receiving location information and positioning accuracy information is performed as a result of positioning of a user terminal from a positioning system. This procedure may be performed according to a request from the user terminal, or may be performed at a predetermined time interval or in real time.

When the location information is received, a procedure of extracting search radius information using the information is performed. In this case, the search radius information is searched by inputting the location information received in the search radius DB, and the search radius range is extracted from the search result. Here, the search radius range is extracted from the value set in the DB, but when the DB is set, the range is set in consideration of the specificity of each region and the administrative district according to the location, and the range of the search radius is extracted. Is reflected. That is, for example, in the case of a downtown area, the range is set narrow and the area outside the city can be set wide so that it can be used efficiently and resiliently when searching.

Next, when the search radius range of the current location information of the user terminal is extracted, a procedure of correcting the extracted search radius range according to the received positioning accuracy information is performed. In this case, a correction process for inputting positioning accuracy information and enlarging or reducing the extracted search radius range is performed as the accuracy is high and low in proportion to a predetermined reference value (S30).

After the search radius range correction process is performed according to the accuracy, the search radius range is determined, and a procedure for checking whether a change in the radius range is requested by the user or the information set in the user terminal is performed. S40)

When the change request signal of the search radius range is received, a procedure of receiving change information received from the corresponding user or set in the terminal and performing change processing of the radius range accordingly is performed. That is, this procedure is a procedure that can arbitrarily adjust the search radius range according to the user or the set information (S45).

If the radius range change request does not exist or the change process is completed, a procedure of determining it as the search radius range is performed (S50).

Once the range of search radius is determined, a process of searching for POI is applied by applying it to the DB of interest point. In this case, all POIs included in a radius range determined based on the position of the corresponding user terminal on the geographic information are searched in the point of interest DB (S60).

As a result of the POI search, all POIs existing in the corresponding range are extracted (S70).

Next, a procedure of determining a representative POI to be provided to the user terminal is performed in the extracted POIs. At this time, the representative POIs are determined in order of priority among the extracted POIs. In addition, when the number of POIs to be determined as the representative POI is set, the priority is selected as much as the corresponding number. Of course, the POI having the highest priority may be determined as the representative POI. In addition, the priority is set in advance in the point of interest DB, and the priority is classified and set in the order of high recognition among the POIs (S80).

When the representative POI is determined as described above, a procedure of providing the representative POI information to the user terminal is performed. In this case, the map information and the address information may be provided together with the representative POI information. In addition, the representative POI information may be provided with priority information of the corresponding POI. That is, the priority information may be divided into grades and the grade names may be provided together in parallel (S90).

Through the above procedure, a service for providing the user with current location information and representative point of interest information in the vicinity thereof is provided. In addition, the representative point of interest is provided with the point of interest information having the highest priority in the user's location to help the user easily recognize the surrounding information. In addition, the scope of the POI search is changed according to the user's location, so that the representative POI is appropriately provided in response to the situation or the regional specificity.

4 is a diagram illustrating a configuration of an apparatus for providing a point of interest information in a location-based service according to another embodiment of the present invention.

As shown in FIG. 4, the apparatus for providing point of interest information 100 according to the present invention is not provided in the mobile communication system side as in FIG. 1, but may be provided in the user terminal 300 side. That is, the structure is directly connected to the user terminal device 301 and can provide representative POI information directly to the user terminal.

Due to this structure, the representative POI information providing service can be provided to the user terminal 300 in cooperation with the positioning system 250 through the communication network, and the position of the user terminal 300 directly through the GPS satellite 260. The location information may be received and representative POI information may be provided through the location information. Such a structure is to provide a representative POI information providing service according to the present invention in a system in which a mobile communication function is excluded, such as a car navigation terminal. To this end, of course, the user terminal 300 must be equipped with a GPS receiving module.

5 is a diagram illustrating an example of a screen on which representative point of interest information is provided according to a method of providing point of interest information in a location-based service according to an embodiment of the present invention.

Referring to FIG. 5, FIG. 5A illustrates a screen on which representative point of interest information is provided in a conventional manner, and FIG. 5B illustrates a screen on which representative point of interest information is provided according to an embodiment of the present invention. It is shown.

As shown in FIG. 5 (a), the POI (a2) closest to the location a1 of the user terminal has been provided as the representative POI. That is, the 'Lake Limb Apartment', the POI (a2) at the 50 m point closest to the user terminal a1, is provided as the representative POI. At this time, the user checks the 'Lim Lim Kwang apartment', and there is a problem that it is not easy to grasp the surrounding area information in a short time through this information. In other words, the conventional method causes a problem of poor visibility.

On the other hand, in the method according to the present invention as shown in FIG. 5 (b), a point of interest b3 having a higher priority among POIs included in the search radius range determined at the position b2 of the user terminal is provided as the representative point of interest. do. That is, the point of interest b3 200 m away from the point of interest b2 at a distance of 50 m closest to the user terminal b1 is provided as a representative point of interest. As the representative point of interest (b3) is provided with a high recognition 'jamsil station' as shown in the figure, the user can more easily identify the surrounding area information.

In addition, as shown in FIG. 5 (b), not only the POI (b3) having the highest priority but also the next POI (b2) may be provided as representative point of interest information to provide more various information. In addition, as shown in the figure, priority rating information may be provided together with a plurality of POIs provided.

Although the present invention has been described above by means of limited embodiments and drawings, the present invention is not limited thereto and will be described below by the person skilled in the art to which the present invention pertains. Of course, various modifications and variations are possible within the scope of the claims.

The following drawings, which are attached to this specification, illustrate exemplary embodiments of the present invention, and together with the detailed description of the present invention serve to further understand the technical spirit of the present invention, the present invention includes matters described in such drawings. It should not be construed as limited to.

1 is a diagram illustrating a network configuration in which a method for providing point of interest information is implemented in a location-based service according to an embodiment of the present invention.

2 is a diagram illustrating a configuration of an apparatus for providing point of interest information in a location-based service according to an embodiment of the present invention.

3 is a flowchart illustrating a procedure for providing point of interest information in a location-based service according to an embodiment of the present invention.

4 is a diagram illustrating a configuration of an apparatus for providing a point of interest information in a location-based service according to another embodiment of the present invention.

5 is a diagram illustrating an example of a screen on which representative point of interest information is provided according to a method of providing point of interest information in a location-based service according to an embodiment of the present invention.

<Explanation of symbols for the main parts of the drawings>

100: Point of interest information providing device 200: Geographic information system

210: location-based service system 250: location positioning system

300: user terminal

Claims (14)

A method of providing point of interest (POI) information using a geographic information system in a location-based service for a user terminal, (a) receiving location information of a user terminal positioned from a location system; (b) extracting search radius information corresponding to the received location information from the search radius database in which the range of the search radius is set according to the location information on the geographic information and determining the search radius range; And (c) Extracting a point of interest having a higher priority by searching for points of interest included in the determined search radius range based on the received location information in the stored point of interest database, in which information of points of interest in the geographic information is divided into priorities. Determining the representative point of interest by the method; providing point of interest information in a location-based service comprising a. The method of claim 1, Step (a), receiving the location information and positioning accuracy information of the location of the user terminal, The step (b) is a method for providing point of interest information in a location-based service, characterized in that for determining the search radius range by correcting the extracted search radius information according to the received positioning accuracy information. The method according to claim 1 or 2, After step (c), and (d) providing the determined representative point of interest to the user terminal together with local map information corresponding to the received location information. The method according to claim 1 or 2, In step (c), When the point of interest is extracted from the point of interest database, the method of providing point of interest information in the location-based service, characterized in that the predetermined number of predetermined extraction in order to determine the representative point of interest. The method according to claim 1 or 2, Step (c) is, Method of providing point of interest information in a location-based service, characterized in that for processing by changing the search radius range for searching for the points of interest according to a request from a user terminal or information set in the user terminal. The method according to claim 1 or 2, The search radius information database is a method of providing point of interest information in a location-based service, characterized in that the range of the search radius is set according to the specificity for each administrative area including the location information on the geographic information. The method according to claim 1 or 2, After step (c), (e) extracting address information corresponding to the received location information from the address database in which local address information on geographic information is stored together with the determined representative point of interest information, and providing the same to the user terminal; Point of interest information providing method in a location-based service. The method according to claim 1 or 2, The user terminal, Method of providing point of interest information in a location-based service comprising a mobile communication terminal, a navigation terminal, a telematics terminal and a terminal supporting a location-based service. An apparatus for providing point of interest (POI) information using a geographic information system in a location-based service for a user terminal, Positioning information receiving means for receiving location information of a user terminal in association with a positioning system; Search radius determining means for extracting search radius information corresponding to the received position information from a search radius DB to determine a search radius range; Representative point of interest determining means for searching for points of interest included in the determined search radius range based on the received location information in the point of interest DB to extract a point of interest having a higher priority and to determine the point of interest as a representative point of interest; Point of interest providing means for providing the determined representative point of interest to a user terminal; And Points of interest in location-based services, including; the search radius DB, the range of the search radius is set according to the location information on the geographic information and the storage means for storing and storing the point of interest DB stored in the information of the points of interest in the geographic information divided into priorities Informational device. The method of claim 9, The positioning information receiving means receives the positioning accuracy information together with the location information from the positioning system, And the search radius determining means corrects the extracted search radius information according to the received positioning accuracy information to determine a search radius range. 11. The method according to claim 9 or 10, The point of interest providing means, A map extracting unit for extracting local map information corresponding to the location information received by the positioning information receiving unit; An address extracting unit for extracting local address information corresponding to the received location information from an address DB in which local address information on geographical information is stored; And Point of interest information determined by the representative point of interest determination, geographic information providing unit for providing both the extracted area map information and area address information; Point of interest information providing apparatus in a location-based service comprising a. 11. The method according to claim 9 or 10, The representative point of interest determination means, Apparatus for providing point of interest information in a location-based service, characterized in that for changing the search radius range for searching for the points of interest according to a request from a user terminal or information set in the user terminal. 11. The method according to claim 9 or 10, The search radius DB of the storage means, Point of interest information providing apparatus of the location-based service, characterized in that the range of the search radius is set according to the specificity of each administrative area in the geographic information. 11. The method according to claim 9 or 10, Complaint processing means for receiving the complaint information related to the point of interest recognition from the user terminals provided with the point of interest in the location-based service to update the priority of the points of interest stored in the point of interest DB of the storage means; Point of interest information providing apparatus in a location-based service, characterized in that.

Images