KR20180101866A - Method of displaying risk of road section in map according to weather, map service system performing the same, and web server used therein - Google Patents

Abstract

Disclosed are a map display method for a risk of a road section on a map according to a weather, performed in a map service system, the map service system performing the same, and a web server used therein. The map display method includes the steps of: enabling the web server to analyze a map search request received from a user terminal; enabling the web server to transmit search information including a search position, screen center coordinates and reduced scale information from a background map database (DB) server and a risk DB server; and enabling the web server to generate map information to mesh up risk information received from the risk DB server and a background image received from the background map DB server. Accordingly, the present invention can display the map to make a user easily recognize the risk.

Description

TECHNICAL FIELD [0001] The present invention relates to a map service system, a map service system, and a web server used in the map service. }

Field of the Invention [0002] The present invention relates to an electronic map display technology, and more particularly, to a technique for displaying weather information on an electronic map.

Recently, a variety of electronic map services using wired / wireless communication technology, satellite positioning technology, map information technology, and search engine technology have been provided. The electronic map can be displayed in various forms such as 2D (2 dimension), 2.5D, and 3D depending on the display method. In addition, the electronic map can be variously classified into an indoor map, a topographic map, a traffic map, a city map, a weather map, and a theme map depending on the type of the display object. The various types of maps can be displayed on the screen of the electronic device according to the purpose of use.

In recent years, various additional services using electronic maps have appeared. The electronic map may display points of interest (POI), advertisements, news, etc., as detailed information, as well as map-specific feature information. In addition, overlay information such as traffic information may be displayed on the electronic map in addition to existing map information.

However, the display of too much information or the listing of information can make it difficult for the user to immediately find the desired information. Also, if there are too many pieces of information displayed on the screen having a limited size, it is difficult for the user to find a desired position or information. In order to find a desired position or information, the user must perform additional tasks such as enlargement.

In addition, the conventional map service does not provide the user with easy to recognize map data indicating the road section risk due to weather such as snow, rain, cloudiness, or clearness. This has a disadvantage in that the user can easily grasp the road situation according to the weather and can not appropriately cope with the situation. Korean Patent Registration No. 10-1087486 discloses a method of indicating a risk by an icon. However, this type of risk display has a problem that the user can not easily recognize the risk in the map provided with various icons and texts.

Korean Patent Laid-Open No. 10-2009-0074881 discloses a method of displaying weather information on a background screen. However, there is a problem in that the risk level is displayed for each road section so that the user can not easily grasp the risk across the road at a desired location in advance.

Therefore, there is a need for a method that can appropriately display important information such as road section risk information according to weather among various information on a map to a user.

Korean Patent Registration No. 10-1087486 (published on Nov.28, 2011) Korean Patent Laid-Open Publication No. 10-2009-0074881 (published on July 8, 2009)

The present invention relates to a map display method of a road section risk according to a weather, which provides a map in which a user can easily recognize risk information for each road section when providing a map of a location to be viewed by a user in a map service system To provide a map service system.

A method of displaying a road section risk according to a weather, which is performed in a map service system, which is an embodiment of the present invention, includes analyzing a map search request received from a user terminal of a web server, And transmitting the search information including the search position, the screen center coordinate, and the scale information to the risk DB server, and transmitting the search information including the background map image received from the background map DB server and the risk information received from the risk DB server And generating map-up (MESH-UP) map information.

The step of generating the MESH-UP map information may include: displaying the graphic object using the spatial information value of the risk information; Pattern is applied to the graphic object to generate a risk layer, and the risk layer is overlaid on the layer of the background map image to mesh up.

The map display method may further include receiving the map search request from the user terminal, and transmitting the map information from the web server to the user terminal.

In another embodiment of the present invention, a map service system that performs a map display method of a road section risk according to a weather condition analyzes a map search request received from a user terminal, searches a background map database server and a risk database server , A screen center coordinate, and scale information, and transmits the received background map image and the map information (MESH-UP) of the risk information to the user terminal.

The mesh-up may include displaying the graphic object using the spatial information value of the risk information, applying at least one of the predetermined head tack, color, and pattern to the graphic object using the risk grade value of the risk information Creating a risk layer, and overlaying the risk layer on the layer of the background map image to mesh up.

The map service system includes a background map database server for extracting a background map tile corresponding to the search position, screen center coordinates, and scale information, and transmitting a raster image of the extracted background map tile to the web server, A risk DB server that extracts risk information corresponding to screen center coordinates and scale information, converts the extracted risk information into a vector structure, and transmits the vector structure to the web server.

The map service system may further include a user terminal including a screen on which a user can input a search request and inquire a map.

A web server used in a map service system that performs a map display method of a road section risk according to a weather according to another embodiment of the present invention analyzes a map search request received from a user terminal and generates a background map DB server and a risk map Transmits search information including a search location, a screen center coordinate, and scale information to a DB server, and transmits map information on the received background map image and the risk information to the user terminal (MESH-UP) .

The map display method, the map service system, and the web server according to the weather of the present invention can be classified into a risk map and a risk map according to a risk level and a risk level, (Vector) layer overlay so that the user can easily recognize the risk. It also allows the user to remediate risk situations, such as correcting travel routes and inspecting vehicle equipment.

1 is a block diagram of a system for performing a map display method of a road section risk according to an embodiment of the present invention.
FIG. 2 is a flow chart of a map display method of a road section risk according to an embodiment of the present invention.
FIG. 3 is a diagram illustrating a mesh-up (MESH-UP) of a background map layer and a risk layer according to an embodiment of the present invention.
4A to 4C are examples of a map display screen configuration according to an embodiment of the present invention.
5A and 5B are flowcharts of a background mapping method according to an embodiment of the present invention.

While the invention is susceptible to various modifications and alternative forms, specific embodiments thereof are shown by way of example in the drawings and will herein be described in detail. It is to be understood, however, that the invention is not to be limited to the specific embodiments, but includes all modifications, equivalents, and alternatives falling within the spirit and scope of the invention.

The terms including the first, second, etc. may be used to describe various elements, but the elements are not limited to these terms. The terms are used only for the purpose of distinguishing one component from another. For example, without departing from the scope of the present invention, the first component may be referred to as a second component, and similarly, the second component may also be referred to as a first component. The term " and / or " includes any combination of a plurality of related entry items or any of a plurality of related entry items.

When an element is referred to as being "connected" or "connected" to another element, it may be directly connected or connected to the other element, but other elements may be present in between. On the other hand, when an element is referred to as being "directly connected" or "directly connected" to another element, it should be understood that there are no other elements in between.

The terminology used in this application is used only to describe a specific embodiment and is not intended to limit the invention. The singular expressions include plural expressions unless the context clearly dictates otherwise. In the present application, the term " includes " Or "have." , Etc. are intended to designate the presence of stated features, integers, steps, operations, elements, components, or combinations thereof, in combination with one or more other features, integers, steps, operations, Quot; or " an " or < / RTI > combinations thereof.

Unless defined otherwise, all terms used herein, including technical or scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. Terms such as those defined in commonly used dictionaries are to be interpreted as having a meaning consistent with the contextual meaning of the related art and are to be interpreted as either ideal or overly formal in the sense of the present application Do not.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Reference will now be made in detail to the preferred embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the like elements throughout. The description will be omitted.

1 is a configuration diagram of a map service system, which is an embodiment of the present invention.

The map service system 10 includes a user terminal 100, a communication network 200, a web server 300, a background map DB server 400, and a risk DB server 500.

The user terminal 100 may be any electronic device having a display and may be a personal computer, a laptop, a notebook, a personal digital assistant (PDA), a navigation device, a mobile phone, a smart phone, . A user can use a map providing service by accessing a web site providing a map providing application using the user terminal 100 or installing an application (or APP (APP)) on the user terminal 100. [

A map of the current position or the last searched position may be automatically displayed on the start screen when using the map providing service.

The user inputs a position at which the map is to be inquired to the user terminal 100. The user inputs a name of a certain point (for example, a name of an administrative area such as a city / city / county / district, a road name, a building name, a lot number, etc.) The origin and the destination can be inputted and the map including the route can be inquired.

The user can input the position to be searched directly on the user interface screen provided by the map providing application or automatically input the current position when using the terminal with the built-in GPS function.

In addition, the user can adjust the scale to enlarge or reduce the displayed map on the user interface screen. The scale can be adjusted by placing a scale adjustment bar on one side of the user interface screen, by directly inputting numerical values such as a level, or by using an enlarging and reducing gesture.

When the user inputs a position (or a path) for searching a map, the user terminal 100 displays the position (path), screen center coordinates (latitude and longitude coordinates x , y)) and a scale (display level).

The communication network 200 can connect the plurality of user terminals 100 to the web server 300. That is, the user terminals 100 can access the web server 300 through the communication network 200. The communication network 200 may be a wired network such as a LAN (Local Area Networks), a WAN (Wide Area Networks), a MAN (Metropolitan Area Networks), an ISDN (Integrated Service Digital Networks), or a wireless LAN, CDMA, Bluetooth, But is not limited to, a wireless network.

After receiving the map search request from the user terminal 100, the web server 300 analyzes the location (or path), screen center coordinates, scale, and the like included in the map search request, And transmits search information to the DB server 500.

Also, the web server 300 meshes up the background map tile (raster image) information and the risk information (vector) information received from the background map DB server 400 and the risk DB server 500, 100).

The background map DB server 400 may be an external server when a background map provided from the outside is used as a server for storing a background map tile set according to the scale level. For example, in Naver, next, etc., the background map is provided by the OPEN API, and a background map can be retrieved from such an external server and used. Also, it is possible to directly create a set of background map tiles for each display level and store them in an internal server.

The risk DB server 500 is a server for storing the road section risk according to weather conditions such as rainfall and snowfall for each section (link). This risk may be not only rainfall, snowfall, but also the risk (for example, glare, wind speed, fog, etc.) due to other weather conditions. In addition, this risk may be the result of calculating the risk level through various risk analysis algorithms.

In the map service system 10, the web server 300, the background map DB server 400, and the risk DB server 500 may be composed of at least two or more devices.

FIG. 2 is a flow chart of a map display method of a road section risk according to an embodiment of the present invention.

Referring to FIG. 2, a user inputs a location (or route) to search for a map through a map search screen of the user terminal 100 (S1). The location may be a location to which a user wants to search directly on a map search screen, such as a city name, a city / county / city / province, a building name, a street name, If you want to view the map for the current location, the current location can be automatically entered. Also, it is possible to search the map including the route by inputting the starting point and the destination information. In the case of a user terminal having a built-in GPS function, the current position may be automatically input as a start point or a destination point when a route is searched.

The user terminal 100 transmits the map search request including the input location (or route) information and the screen center coordinates and scale information of the user terminal to the web server 300 through the wired / wireless communication network 200 (S2).

The web server 300 receives the map search request, analyzes the received map search request, and extracts the inputted location (or path) information, screen center coordinates, and scale information (S3). And transmits search information including the extracted input location (or route) information, screen center coordinates, and scale information to the background map DB server 400 and the risk DB server 500, respectively (S4 and S5).

In the background map DB server 400, a background map tile set produced for each expression level is stored in the background map DB server 400. That is, the background map is provided in the form of a Web Map Tile Service (WMTS), and a background data set is stored in the background map DB server 400 for each presentation level.

The background map may be a background map provided by the open API such as Naver or the like.

The background map DB server 400 receives the search information and extracts a map tile set corresponding to the search position (or path), the screen center coordinate, and the scale. Table 1 shows an example of the composition of information displayed on the background map. From the small scale to the large scale, information from information No. 67 to information No. 1 is displayed on the background map. For example, in the case of the national Internet map, information from the 6th level (small scale) to 19th level (large scale) is displayed on the background map from information 67 to 1. Therefore, the background map DB server 400 extracts a set of background level maps corresponding to the screen center coordinates and scale included in the search information.

number Information item number Information item One Building entrance 36 Leisure sports 2 New address building number 37 Land development area 3 Subway Facilities 38 Educational Institutions
(University) 4 Road traffic facilities 39 Administrative agency
(City, County) 5 New address road name 40 Administrative agency
(Ministry of Land, Transport and Maritime Affairs) 6 restaurant 41 Attractions 7 A highway driveway 42 Administrative area name 8 In-Zone Building 43 Administrative District Name 9 Religious facilities 44 IC name 10 Subway entrance number 45 Administrative district name 11 Name 46 Nature 12 Intersection name 47 Main road 13 Underground driveway name 48 JC name 14 market 49 Bridge 15 Industrial facility 50 National road 16 Main finance 51 National Route Number 17 Specialized Street 52 Provincial Park 18 A highway driveway 53 airport 19 Administrative agency
(Government office) 54 Highway name 20 Educational Institutions
(Middle and high school) 55 Expressway number 21 Residential facility 56 A national park 22 Cultural living facility 57 City highway 23 Tunnel name 58 Ferry Route 24 Name of the park 59 Administrative District Name 25 Administrative district renamed 60 Administrative District also name 26 Administrative district name 61 Name 27 Hiking trail 62 highway 28 Traffic facilities 63 Trial boundary 29 Accommodation 64 National boundaries 30 Medical Facilities 65 Major cities 31 Subway station name 66 Intermarriage 32 Subway line 67 Country 33 Bridge 34 Bridge name 35 National Railway Station Name

The risk server 500 receives the search information and extracts the risk information of the corresponding region.

In one embodiment of the present invention, the risk information may be a degree of danger due to rainfall or snowfall by road section (link). That is, it may be information obtained by various risk analysis algorithms based on the road hazard class (for example, upper, middle, and lower classes) according to rainfall or snowfall for each link classified as the road section.

For example, the road hazard class can be calculated as follows. First, the 1-minute meteorological data for a specific period is aggregated in 5-minute increments for each link (the road center line from the start entry point to the exit entry point), and the 5-minute precipitation amount is calculated using the cumulative precipitation amount for 5 minutes Weather information is processed in units. Then, the traffic information is processed in units of 5 minutes for each link in the same period, and the traffic speed is calculated as an arithmetic average. Finally, the danger zone of the road section according to the weather information such as rainfall / snowfall can be calculated by a model calculation formula by merging the weather information, the traffic information, and the geometry information with respect to the accident surrounding link.

Table 2 is an example of a risk information table stored in the risk DB server 500.

link
ID road
Information rainfall
Risk rating space
Information 001 Gyeongbu Expressway Prize

002 Gyeongbu Expressway medium

003 Central highway Ha

... ... ...

As shown in Table 2, the risk level information and the spatial information (link coordinates) are stored in the risk DB server 500 for each link ID that distinguishes the road section. The background map DB server 400 transmits background map tiles in the form of an extracted image file (e.g., PNG) to the web server 300 (S8).

The risk DB server 500 transmits the risk information corresponding to the position requested by the user among the stored risk information to the web server 300 in a vector format (S9).

The web server 300 firstly displays the graphic object using the spatial information value of the risk information received from the DB server 500 and displays the graphic object using a predetermined thickness (for example, leading edge) A risk layer (vector layer) is created by applying a design such as color (e.g., red, yellow, green), pattern (e.g., solid, Then, the risk layer (vector layer) is overlaid on the secondarily received background map image layer (raster layer) to mesh up (MESH-UP) (S10).

FIG. 3 is a diagram illustrating a mesh-up (MESH-UP) of a background map layer and a risk layer according to an embodiment of the present invention. As shown in FIG. 3, a risk map is generated by overlaying a risk layer (vector layer) 700 displayed using the received vector information on a background map image tile layer (laster layer) 600. At this time, the risk can be displayed on the map by changing the shape according to the risk factors or the color depending on the risk level. For example, if the risk factor is rainfall, the link can be displayed in a solid form, and if the risk factor is snowfall, the link can be displayed in a stripe form. In addition, when the risk level is 'Up', the corresponding link can be displayed in red (R), 'Medium', and Yellow (Y).

The web server 300 transmits a map indicating the risk of the mesh-up to the user terminal 100 through the wired / wireless communication network 200 (S11).

The user terminal 100 displays a map indicating the received risk on the screen. The user can adjust the scale so that the map displayed on the user interface screen of the user terminal 100 can be enlarged or reduced. The scale can be adjusted by placing a scale adjustment bar on one side of the user interface screen, by directly inputting numerical values such as a level, or by using an enlarging and reducing gesture.

4A to 4C are examples of a map display screen configuration according to an embodiment of the present invention. As shown in FIG. 4A, the map service application may divide the screen of the user terminal 100 into a map area 110 and a legend area 120 to provide a map including a risk.

The map area 110 is an area for displaying a map indicating the degree of risk as shown in FIG. 4B.

The legend area 120 is an area for displaying information on a risk level to be displayed and a risk level according to a shape / color. The risk factor can be selected in the form of a toggle switch or the like as shown in FIG. 4B.

The map area 110 and the legend area 120 may be divided horizontally as shown in FIGS. 4A to 4C, but they may be divided vertically and diagonally, and the size of each area is also adjustable. In addition, the legend area 120 may be hidden and only the map area 110 may be displayed.

In FIG. 4C, a screen 4c-1 for displaying both the map area and the legend area showing the risk of rainfall, a screen 4c-2 for displaying only the map area, a screen 4c- Shows an example of a screen 4c-4 on which no display is selected.

In the method of displaying the road section risk according to the weather, which is one embodiment of the present invention, the background map provided from the outside may be used, but the background map may be produced by itself.

5A is a flowchart of a background map generation method according to an embodiment of the present invention. Referring to FIG. 5A, a background map generation method includes a background data processing step S100, a map design policy establishment step S200, a data set configuration step S300, an MXD file creation and verification step S400, A creation step S500, a tile verification and supplementation step S600, and a tile conversion and compression step S700.

In the background data processing step (S100), the base data and the separate DB layer set are configured for the source data such as the country base map, the new address, and the continuous cadastral map, and the background data is processed to improve the readability. In addition, data is constructed by selecting separate construction data such as public transportation layer and leisure layer.

In the map design policy establishment step (S200), a color policy for each background layer and LOD (level of detail) is established, and a guide (line, face) for each data type is established. Also build icon files and develop fonts.

In the data set configuration step (S300) for each expression level, a layer set in which the scale level is divided into predetermined steps and information to be displayed for each expression level is displayed is constructed. Also, it is possible to construct a set of display periods for each level, and to select a period and a font size according to level-specific characteristics.

In the MXD file creation and verification step S400, an MXD (Map Document (MXD) file) for storing information such as layer color, icon, cycle, font color and size to be applied to the data set for each expression level ) File. In addition, sample tiling is carried out to carry out preliminary visual inspection such as map design, LOD, cycle overlap, and hierarchical order. In the tile generation step (S500), a map tile is generated which is based on the Open Geospatial Consortium (OGC) standard and rendered to a scale level for service matching the Korean map.

In the tile inspection and supplementation step (S600), automatic inspection is performed using a self-developed program (for example, a bin tile inspection machine). In addition, visual inspection is carried out through the tile viewer and the error data is supplemented by writing a check.

In the tile conversion and compression step (S700), the tile file converter is used to change the file type. It also compresses the file to improve upload speed.

The background map tiles generated through the steps described above may be stored in the background map DB server 400 and used for the map service.

A number of embodiments of the present invention have been described. Nevertheless, it should be understood that the foregoing description is intended to be illustrative and not restrictive of the scope of the invention, which is defined by the scope of the following claims. Accordingly, other embodiments are also within the scope of the following claims. For example, various modifications may be made without departing from the scope of the present invention. Additionally, some of the steps described above may be performed in a different order than described, since they are order independent.

100: user terminal
110: map area 120: legend area
200: Network 300: Web server
400: background map DB server 500: risk DB server
600: Background map layer 700: Risk layer

Claims (8)

A map display method of a road section risk according to a meteorological operation performed in a map service system,
Analyzing the map retrieval request received from the user terminal by the web server;
Transmitting, by the web server, search information including a search location, a screen center coordinate, and scale information to a background map DB server and a risk DB server; And
(MESH-UP) map information of the background map image received from the background map DB server and the risk information received from the risk DB server, Way. The method according to claim 1,
The step of generating the MESH-UP map information may include: displaying the graphic object using the spatial information value of the risk information; Pattern is applied to the graphic object to generate a risk layer, and the risk layer is overlaid on the layer of the background map image to mesh up the road section risk. The method according to claim 1,
The web server receiving a map search request from a user terminal; And
And transmitting the map information to the user terminal by the web server. 1. A map service system for carrying out a map display method of a road section risk according to a weather,
Analyzes the map retrieval request received from the user terminal, transmits retrieval information including retrieval position, screen center coordinates, and scale information to the background map DB server and the risk DB server, and transmits the retrieved background map image and the risk information And a web server for transmitting map-up MESH-UP map information to the user terminal. 5. The method of claim 4,
The mesh-up may include displaying the graphic object using the spatial information value of the risk information, applying at least one of the predetermined head tack, color, and pattern to the graphic object using the risk grade value of the risk information Creating a risk layer and overlaying the risk layer over the layer of the background map image to mesh up. 5. The method of claim 4,
A background map DB server extracting a background map tile corresponding to the search position, screen center coordinates, and scale information, and transmitting a raster image of the extracted background map tile to the web server; And
Further comprising: a risk DB server for extracting the risk information corresponding to the retrieval position, the screen center coordinate, and the scale information, converting the extracted risk information into a vector structure, and transmitting the vector structure to the web server. 5. The method of claim 4,
Further comprising a user terminal including a screen in which a user can input a search request and display a map. A web server used in a map service system that performs a map display method of a road section risk according to a weather,
Analyzes the map retrieval request received from the user terminal, transmits retrieval information including retrieval position, screen center coordinates, and scale information to the background map DB server and the risk DB server, and transmits the retrieved background map image and the risk information And transmits the MESH-UP map information to the user terminal.

Images