KR102530815B1 - System and method for providing vector tile service of electronic navigational chart - Google Patents

Abstract

The purpose of the present invention is to transmit vector information rather than raster for WMS/WMTS services so that rendering can be performed in a terminal, spatial information, rendering (symbols used for expression (color, shape, structure, etc.) An electronic chart vector tile service providing system and provision that provides information, mapping information between renderings, spatial index information, etc., and provides electronic chart screen information by utilizing spatial information, rendering information, and spatial index information provided from a terminal is to provide a way
In order to achieve the above object, a vector tile service providing system for electronic charts according to the present invention is a vector tile server that processes electronic chart files, generates information for rendering, and transmits information corresponding to a client's request. ; and a vector tile terminal that requests a vector tile of a position to be displayed from the server and renders spatial information on a screen according to the response information.

Description

Electronic chart vector tile service provision system and method {SYSTEM AND METHOD FOR PROVIDING VECTOR TILE SERVICE OF ELECTRONIC NAVIGATIONAL CHART}

The present invention relates to a vector tile service providing system and method for electronic charts, and more particularly, to an electronic chart that transmits vector information rather than raster for web service standards such as WMS/WMTS so that rendering is performed in a terminal. It relates to a system and method for providing vector tile service of charts.

In operating a ship in the ocean, information on the topography and water depth of the seabed is an essential factor related to safe navigation.

Recently, charts are provided on the computer screen for navigation through the electronic navigation chart system, and under system control, it is linked with the automatic navigation system and port control system to prevent dangerous situations of ships in advance. technology is being used.

Electronic charts refer to digital charts (maps at sea) produced and distributed for the purpose of navigation of ships. The international standard (S-52 or S-101 Portrayal It is produced by the information authority or the Hydrographic Office according to the concept of catalog) and contains information necessary for navigation, such as coastlines, contour lines, lighthouses, hazardous materials, and water depth.

These electronic charts are often installed and operated as programs for desktops or workstations, and use cases in the form of servers/clients or web applications are insignificant.

This is because a stand-alone user mainly operates the electronic chart information management system, and the transmission amount of data is relatively large, so it is not appropriate to implement the electronic chart information management system as a communication program.

Recently, some GIS (Geographic Information System) developers are releasing web-based APIs (Application Programming Interfaces).

In other words, electronic chart systems are provided in various formats such as ECDIS, ECS, mobile apps, and web pages.

In the case of ECDIS/ECS, the electronic chart file is directly processed, the rendering information is derived, the rendering is directly processed, and the electronic chart image is displayed.

In addition, mobile apps and web pages process electronic chart information through WMS and WMTS services.

These WMS and WMTS send multiple rasters (256 × 256 images) to designate a tile-shaped image to the location of the image and show the corresponding spatial information on the entire screen.

For example, a map that a user wants to see through a web browser is provided as a combination of several web images instead of a single map.

However, in the case of this raster method, the processing algorithm when displaying the electronic chart on the screen is insufficient, so compared to the vector chart, data capacity, data processing speed according to the increase in the number of objects, enlargement, reduction, or movement according to scale or position change Improvement is required in various aspects, such as the distortion of

Therefore, there is a growing need for a method of recognizing and displaying vector objects based on the standards specified by the IHO for spatial information.

Korean Registered Patent Publication No. 10-2046910

An object of the present invention to solve the conventional problems as described above is to transmit vector information rather than raster information in a WMS / WMTS service so that rendering is performed in a terminal, spatial information, rendering (used for expression) in a server Symbol (color, shape, structure, etc.) information, spatial information, mapping information between renderings, spatial index information, etc. are provided, and electronic chart screen information is provided by utilizing the spatial information, rendering information, and spatial index information provided by the terminal. It is to provide a vector tile service providing system and method for providing electronic charts.

In order to achieve the above object, a vector tile service providing system for electronic charts according to the present invention is a vector tile server that processes electronic chart files, generates information for rendering, and transmits information corresponding to a client's request. ; and a vector tile terminal that requests a vector tile of a position to be displayed from the server and renders spatial information on a screen according to the response information.

In addition, in the electronic chart vector tile service providing system according to the present invention, the server includes an electronic chart information processing unit that reads electronic chart data and loads it into a memory.

In addition, in the electronic chart vector tile service providing system according to the present invention, the server includes an electronic chart drawing information management unit for deriving a drawing command related to spatial information according to a drawing process of the electronic chart information loaded on the memory; It is characterized in that it includes.

In addition, in the system for providing a vector tile service of an electronic chart according to the present invention, the server includes: a spatial information processing unit that reconstructs spatial information of a certain size by dividing spatial information loaded on the memory according to a specified tile size; and a spatial information management unit that manages the reconstructed spatial information.

In addition, in the vector tile service providing system for electronic charts according to the present invention, the server may include a drawing command management unit that manages a form to display spatial information loaded on the memory on a screen.

In addition, in the vector tile service providing system of an electronic chart according to the present invention, the server generates an index having correlation between the spatial information management unit and the information managed by the drawing command management unit, and manages the spatial index information management unit. It is characterized by including;

In addition, in the vector tile service providing system of the electronic chart according to the present invention, the server collects spatial information, drawing command information, and spatial index information for a corresponding area when a request for spatial information is received by the terminal, It is characterized in that it comprises a; terminal request processing unit for transmitting to the terminal.

In addition, in the electronic chart vector tile service providing system according to the present invention, the terminal includes an electronic chart information requesting unit that requests electronic chart information corresponding to a screen area from the server.

In addition, in the vector tile service providing system for electronic charts according to the present invention, the terminal includes an electronic chart information receiving unit that receives spatial information, drawing command information, and spatial index information from the server and transmits them to each corresponding information processing unit; It is characterized by including.

In addition, in the electronic chart vector tile service providing system according to the present invention, the terminal may include a spatial index information processing unit that processes the spatial index information received from the electronic chart information receiving unit.

In addition, in the electronic chart vector tile service providing system according to the present invention, the terminal includes a drawing command processing unit that interprets the drawing command information received from the electronic chart information receiver and generates internal information capable of rendering. It is characterized by doing.

In addition, in the electronic chart vector tile service providing system according to the present invention, the terminal includes a spatial information processing unit that collects the spatial information received from the electronic chart information receiving unit and reconstructs it into a form applicable to rendering. to be characterized

In addition, in the vector tile service providing system for electronic charts according to the present invention, the terminal determines spatial information to be displayed on the screen by matching the drawing command with the spatial information based on the spatial index information, , an electronic chart rendering information generation unit that caches the corresponding information and manages it as internal information;

In addition, in the electronic chart vector tile service providing system according to the present invention, the terminal renders the information generated by the electronic chart rendering information generation unit in consideration of the screen area, and displays the electronic chart on the terminal. Characterized in that it includes; display unit.

In addition, in order to achieve the above object, a method for providing a vector tile service of an electronic chart according to the present invention generates information for processing and rendering an electronic chart file by a vector tile server, and corresponds to a request of a client. Conveying information to; and requesting, by a terminal of the vector tile, a vector tile of a location to be displayed from the server, and rendering spatial information on the screen according to the response information.

Meanwhile, in order to achieve the above object, a vector tile service providing system of an electronic chart according to the present invention is performed by a vector tile service providing method of an electronic chart.

Details of other embodiments are included in the "specific details for carrying out the invention" and the accompanying "drawings".

Advantages and/or features of the present invention, and methods of achieving them, will become apparent with reference to the various embodiments described below in detail in conjunction with the accompanying drawings.

However, the present invention is not limited only to the configuration of each embodiment disclosed below, but may also be implemented in various other forms, and each embodiment disclosed herein only makes the disclosure of the present invention complete, and the present invention It is provided to completely inform those skilled in the art of the scope of the present invention, and it should be noted that the present invention is only defined by the scope of each claim of the claims.

According to the present invention, in the WMS/WMTS service, in order to transmit vector information rather than raster information so that rendering is performed in the terminal, spatial information and rendering (symbols (color, shape, structure, etc.) used for expression) information in the server An electronic chart vector tile service providing system that provides spatial information, mapping information between renderings, and spatial index information, and provides electronic chart screen information by utilizing spatial information, rendering information, and spatial index information provided from a terminal. And it has the effect of providing a provision method.

1 is a diagram showing the configuration of a vector tile service providing system of an electronic chart according to an embodiment of the present invention.
2 is a diagram showing the configuration of a server in a vector tile service providing system of an electronic chart according to an embodiment of the present invention.
3 is a diagram showing the configuration of a terminal in a vector tile service providing system of an electronic chart according to an embodiment of the present invention.
4 is a flow chart showing the overall flow of a method for providing a vector tile service of an electronic chart according to an embodiment of the present invention.

Before explaining the present invention in detail, the terms or words used in this specification should not be construed unconditionally in a conventional or dictionary sense, and in order for the inventor of the present invention to explain his/her invention in the best way It should be noted that concepts of various terms may be appropriately defined and used, and furthermore, these terms or words should be interpreted as meanings and concepts corresponding to the technical spirit of the present invention.

That is, the terms used in this specification are only used to describe preferred embodiments of the present invention, and are not intended to specifically limit the contents of the present invention, and these terms represent various possibilities of the present invention. It should be noted that it is a defined term.

In addition, it should be noted that in this specification, singular expressions may include plural expressions unless the context clearly indicates otherwise, and similarly, even if they are expressed in plural numbers, they may include singular meanings. .

Throughout this specification, when a component is described as "including" another component, it does not exclude any other component, but further includes any other component, unless otherwise stated. It can mean you can do it.

Furthermore, when a component is described as “existing inside or connected to and installed” of another component, this component may be directly connected to or installed in contact with the other component, and a certain It may be installed at a distance, and when it is installed at a certain distance, a third component or means for fixing or connecting the corresponding component to another component may exist, and now It should be noted that the description of the components or means of 3 may be omitted.

On the other hand, when it is described that a certain element is "directly connected" to another element, or is "directly connected", it should be understood that no third element or means exists.

Similarly, other expressions describing the relationship between components, such as "between" and "directly between", or "adjacent to" and "directly adjacent to" have the same meaning. should be interpreted as

In addition, in this specification, the terms "one side", "the other side", "one side", "the other side", "first", "second", etc., if used, refer to one component It is used to be clearly distinguished from other components, and it should be noted that the meaning of the corresponding component is not limitedly used by such a term.

In addition, in this specification, terms related to positions such as "top", "bottom", "left", and "right", if used, should be understood as indicating a relative position in the drawing with respect to the corresponding component, Unless an absolute position is specified for these positions, these positional terms should not be understood as referring to an absolute position.

In addition, in this specification, in specifying the reference numerals for each component of each drawing, for the same component, even if the component is displayed in different drawings, it has the same reference numeral, that is, the same reference throughout the specification. Symbols indicate identical components.

In the drawings accompanying this specification, the size, position, coupling relationship, etc. of each component constituting the present invention is partially exaggerated, reduced, or omitted in order to sufficiently clearly convey the spirit of the present invention or for convenience of explanation. may be described, and therefore the proportions or scale may not be exact.

In addition, in the following description of the present invention, a detailed description of a configuration that is determined to unnecessarily obscure the subject matter of the present invention, for example, a known technology including the prior art, may be omitted.

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

1 is a diagram showing the configuration of a vector tile service providing system of an electronic chart according to an embodiment of the present invention.

An electronic chart vector tile service providing system 1000 according to an embodiment of the present invention is designed to provide a service combining a vector tile-based map service with a rendering method based on an electronic chart standard.

Referring to FIG. 1 , a system 1000 for providing a vector tile service of an electronic chart according to an embodiment of the present invention includes a server 100 and a terminal 200 .

Here, the server 100 processes the electronic chart file, generates information for rendering, and transmits information corresponding to the client's request.

In addition, the terminal 200 requests the server 100 for a vector tile of a location to be displayed, and renders spatial information on the screen according to the response information.

The terminal 100 may be understood as a concept encompassing all devices capable of rendering spatial information on a screen, such as PCs, laptops, mobile phones, smart phones, smart books, E-books, and smart pads.

The server 100 and the terminal 200 may transmit data through wired or wireless communication.

In particular, wireless communication includes Bluetooth module, Wi-fi module, and Wireless Broadband module, as well as GSM (Global System For Mobile Communication), CDMA (Code Division Multiple Access), WCDMA (Wideband Code Division) It may include a wireless communication module supporting various wireless communication schemes such as multiple access), universal mobile telecommunications system (UMTS), time division multiple access (TDMA), and long term evolution (LTE).

The server 100 and the terminal 200 will be described in more detail.

2 is a diagram showing the configuration of a server in a vector tile service providing system of an electronic chart according to an embodiment of the present invention.

Referring to FIG. 2, in the electronic chart vector tile service providing system 1000 according to the present invention, the server 100 includes an electronic chart information processing unit 110, an electronic chart drawing information management unit 120, and a spatial information processing unit. 130, a spatial information management unit 140, a drawing command management unit 150, a spatial index information management unit 160, and a terminal request processing unit 170.

Here, the electronic chart information processing unit 110 reads the electronic chart data and loads the read electronic chart data onto the memory.

In particular, the electronic chart information processing unit 110 reads ISO/IEC 8211 data of an electronic chart (based on S-57 ENC and S-101 standards) encoding format, and loads the read electronic chart data into a structure on memory.

The electronic chart drawing information management unit 120 derives a drawing command related to spatial information according to a drawing process of the electronic chart information loaded on the memory.

In particular, the electronic chart drawing information management unit 120 derives a drawing command for spatial information from the electronic chart information loaded on the memory according to the drawing processing procedure defined in the S-57 ENC and S-101 standards.

The spatial information processing unit 130 divides the spatial information loaded on the memory according to the tile size of the specified shape and reconstructs the spatial information of a certain size.

The spatial information management unit 140 manages the spatial information reconstructed by the spatial information processing unit 130 .

The drawing command management unit 150 manages the form of displaying the space information loaded on the memory on the screen.

In particular, the drawing command management unit 150 manages area patterns, line styles, point symbols, text information, etc. in the form of displaying spatial information loaded on the memory on the screen. .

The spatial index information management unit 160 creates and manages an index having correlation between the spatial information management unit 140 and the information managed by the drawing command management unit 150.

When a request for spatial information is received from the terminal 200, the terminal request processing unit 170 collects spatial information for a corresponding area, drawing command information, and spatial index information and transmits them to the terminal 200.

In this way, in the WMS/WMTS service, in order to transmit vector information rather than raster information so that rendering is performed in the terminal, the server provides spatial information, rendering (symbols used for expression (color, shape, structure, etc.)) information, spatial information , mapping information between renderings, spatial index information, etc. are provided.

3 is a diagram showing the configuration of a terminal in the vector tile service providing system of an electronic chart according to an embodiment of the present invention.

Referring to FIG. 3, in the electronic chart vector tile service providing system 1000 according to an embodiment of the present invention, the terminal 200 includes an electronic chart information requesting unit 210, an electronic chart information receiving unit 220, and , a spatial index information processing unit 230, a drawing command processing unit 240, a spatial information processing unit 250, an electronic chart rendering information generating unit 260, and an electronic chart display unit 270.

Here, the electronic chart information requesting unit 210 requests electronic chart information corresponding to the screen area from the server 100 .

The electronic chart information receiving unit 220 receives spatial information, drawing command information, and spatial index information from the server 100 and transmits them to each corresponding information processing unit.

Here, each corresponding information processing unit includes a spatial index information processing unit 230, a drawing command processing unit 240, and a spatial information processing unit 250 to be described later.

The spatial index information processing unit 230 processes the spatial index information received from the electronic chart information receiving unit 220.

The drawing command processing unit 240 interprets the drawing command information received from the electronic chart information receiving unit 220 and generates internal information capable of rendering.

The spatial information processing unit 250 collects the spatial information received from the electronic chart information receiving unit 220 and reconstructs it into a form applicable to rendering.

The electronic chart rendering information generation unit 260 matches a drawing command and spatial information based on spatial index information to determine spatial information to be displayed on the screen, caches the information, and manages the information as internal information.

The electronic chart display unit 270 renders the information generated by the electronic chart rendering information generator 260 in consideration of the screen area and displays it on the terminal 200 .

4 is a flowchart showing the overall flow of a method for providing a vector tile service of an electronic chart according to an embodiment of the present invention.

Referring to FIG. 4 , a method for providing a vector tile service of an electronic chart according to an embodiment of the present invention includes two steps.

In the first step (S100), the server 100 of the vector tile processes the electronic chart file, generates information for rendering, and transmits the information corresponding to the client's request to the terminal 200.

In a second step (S200), the vector tile terminal 200 requests the server 100 for the vector tile at the location to be displayed, and renders spatial information on the screen according to the response information.

A method for providing a vector tile service of an electronic chart according to an embodiment of the present invention is designed to provide a service combining a vector tile-based map service with a rendering method based on an electronic chart standard.

In this method of providing a vector tile service of an electronic chart, it is performed by the server 100 and the terminal 200.

Here, the server 100 processes the electronic chart file, generates information for rendering, and transmits information corresponding to the client's request.

In addition, the terminal 200 requests the server 100 for a vector tile of a location to be displayed, and renders spatial information on the screen according to the response information.

The terminal 100 may be understood as a concept encompassing all devices capable of rendering spatial information on a screen, such as PCs, laptops, mobile phones, smart phones, smart books, E-books, and smart pads.

The server 100 and the terminal 200 may transmit data through wired or wireless communication.

In particular, wireless communication includes Bluetooth module, Wi-fi module, and Wireless Broadband module, as well as GSM (Global System For Mobile Communication), CDMA (Code Division Multiple Access), WCDMA (Wideband Code Division) It may include a wireless communication module supporting various wireless communication schemes such as multiple access), universal mobile telecommunications system (UMTS), time division multiple access (TDMA), and long term evolution (LTE).

In the method for providing a vector tile service of an electronic chart according to the present invention, the server 100 includes an electronic chart information processing unit 110, an electronic chart drawing information management unit 120, a spatial information processing unit 130, and a spatial information management unit ( 140), a drawing command management unit 150, a spatial index information management unit 160, and a terminal request processing unit 170.

Here, the electronic chart information processing unit 110 reads the electronic chart data and loads the read electronic chart data onto the memory.

In particular, the electronic chart information processing unit 110 reads ISO/IEC 8211 data of an electronic chart (based on S-57 ENC and S-101 standards) encoding format, and loads the read electronic chart data into a structure on memory.

The electronic chart drawing information management unit 120 derives a drawing command related to spatial information according to a drawing process of the electronic chart information loaded on the memory.

In particular, the electronic chart drawing information management unit 120 derives a drawing command for spatial information from the electronic chart information loaded on the memory according to the drawing processing procedure defined in the S-57 ENC and S-101 standards.

The spatial information processing unit 130 divides the spatial information loaded on the memory according to the tile size of the specified shape and reconstructs the spatial information of a certain size.

The spatial information management unit 140 manages the spatial information reconstructed by the spatial information processing unit 130 .

The drawing command management unit 150 manages the form of displaying the space information loaded on the memory on the screen.

In particular, the drawing command management unit 150 manages area patterns, line styles, point symbols, text information, etc. in the form of displaying spatial information loaded on the memory on the screen. .

The spatial index information management unit 160 creates and manages an index having correlation between the spatial information management unit 140 and the information managed by the drawing command management unit 150.

When a request for spatial information is received from the terminal 200, the terminal request processing unit 170 collects spatial information for a corresponding area, drawing command information, and spatial index information and transmits them to the terminal 200.

In this way, in the WMS/WMTS service, in order to transmit vector information rather than raster information so that rendering is performed in the terminal, the server provides spatial information, rendering (symbols used for expression (color, shape, structure, etc.)) information, spatial information , mapping information between renderings, spatial index information, etc. are provided.

Meanwhile, in the method for providing a vector tile service of an electronic chart according to an embodiment of the present invention, the terminal 200 includes an electronic chart information requesting unit 210, an electronic chart information receiving unit 220, and a spatial index information processing unit 230. ), a drawing command processing unit 240, a space information processing unit 250, an electronic chart rendering information generating unit 260, and an electronic chart display unit 270.

Here, the electronic chart information requesting unit 210 requests electronic chart information corresponding to the screen area from the server 100 .

The electronic chart information receiving unit 220 receives spatial information, drawing command information, and spatial index information from the server 100 and transmits them to each corresponding information processing unit.

Here, each corresponding information processing unit includes a spatial index information processing unit 230, a drawing command processing unit 240, and a spatial information processing unit 250 to be described later.

The spatial index information processing unit 230 processes the spatial index information received from the electronic chart information receiving unit 220.

The drawing command processing unit 240 interprets the drawing command information received from the electronic chart information receiving unit 220 and generates internal information capable of rendering.

The spatial information processing unit 250 collects the spatial information received from the electronic chart information receiving unit 220 and reconstructs it into a form applicable to rendering.

The electronic chart rendering information generation unit 260 matches a drawing command and spatial information based on spatial index information to determine spatial information to be displayed on the screen, caches the information, and manages the information as internal information.

The electronic chart display unit 270 renders the information generated by the electronic chart rendering information generator 260 in consideration of the screen area and displays it on the terminal 200 .

Meanwhile, the electronic chart vector tile service providing system 1000 according to the present invention is performed by the electronic chart vector tile service providing method.

In addition, the method for providing a vector tile service of an electronic chart according to an embodiment of the present invention can be implemented as computer readable code on a computer readable recording medium.

A computer-readable recording medium includes all types of recording devices in which data that can be read by a computer system is stored.

Examples of computer-readable recording media include ROM, RAM, CD-ROM, magnetic tape, floppy disk, and optical data storage devices. include

In addition, computer-readable recording media may be distributed to computer systems connected through a network to store and execute computer-readable codes in a distributed manner.

As described above, according to the present invention, in order to transmit WMS/WMTS service with vector information rather than raster, rendering is performed in the terminal, spatial information and rendering (symbols used for expression (color, shape, structure, etc.)) information in the server , spatial information, mapping information between renderings, spatial index information, etc. are provided, and there is an effect of providing electronic chart screen information by utilizing the spatial information, rendering information, and spatial index information provided by the terminal.

In the above, various preferred embodiments of the present invention have been described with some examples, but the description of various embodiments described in the "Specific Contents for Carrying Out the Invention" section is only exemplary, and the present invention Those skilled in the art will understand from the above description that the present invention can be practiced with various modifications or equivalent implementations of the present invention can be performed.

In addition, since the present invention can be implemented in various other forms, the present invention is not limited by the above description, and the above description is intended to complete the disclosure of the present invention and is common in the technical field to which the present invention belongs. It is only provided to completely inform those skilled in the art of the scope of the present invention, and it should be noted that the present invention is only defined by each claim of the claims.

100: server
110: electronic chart information processing unit
120: electronic chart drawing information management unit
130: spatial information processing unit
140: spatial information management unit
150: drawing command management unit
160: spatial index information management unit
170: terminal request management unit
200: Terminal
210: electronic chart information request unit
220: electronic chart information receiver
230: spatial index information processing unit
240: drawing command processing unit
250: spatial information processing unit
260: electronic chart rendering information generation unit
270: electronic chart display unit
1000: Vector tile service provision system of electronic chart

Claims (16)

A vector tile server that processes an electronic chart file, generates information for rendering, and transmits information corresponding to a client's request; and
A vector tile terminal that requests a vector tile of a location to be displayed from the server and renders spatial information on the screen according to the response information;
The terminal,
An electronic chart information receiving unit that receives spatial information, drawing command information, and spatial index information from the server and transmits them to each corresponding information processing unit; characterized in that it comprises,
Vector tile service delivery system for electronic charts.
According to claim 1,
The server,
characterized in that it comprises a; electronic chart information processing unit that reads electronic chart data and loads it onto a memory;
Vector tile service delivery system for electronic charts.
According to claim 2,
The server,
An electronic chart drawing information management unit for deriving a drawing command related to spatial information according to a drawing process of the electronic chart information loaded on the memory; characterized in that it comprises,
Vector tile service delivery system for electronic charts.
According to claim 2,
The server,
a spatial information processing unit which divides the spatial information loaded on the memory according to a specified tile size and reconstructs spatial information of a certain size; and
characterized in that it comprises a; spatial information management unit that manages the reconstructed spatial information;
Vector tile service delivery system for electronic charts.
According to claim 4,
The server,
Characterized in that it comprises a; drawing command management unit for managing the form to display the spatial information loaded on the memory on the screen,
Vector tile service delivery system for electronic charts.
According to claim 5,
The server,
and a spatial index information management unit that generates an index having correlation between the spatial information management unit and the information managed by the drawing command management unit, and manages the index.
Vector tile service delivery system for electronic charts.
According to claim 2,
The server,
and a terminal request processing unit that collects spatial information, drawing command information, and spatial index information for a corresponding area when a request for spatial information is received by the terminal and transmits the collected information to the terminal.
Vector tile service delivery system for electronic charts.
According to claim 1,
The terminal,
Characterized in that it comprises a; electronic chart information requesting unit for requesting the electronic chart information corresponding to the screen area to the server,
Vector tile service delivery system for electronic charts.
delete According to claim 1,
The terminal,
Characterized in that it comprises a; spatial index information processing unit for processing the spatial index information received from the electronic chart information receiving unit,
Vector tile service delivery system for electronic charts.
According to claim 10,
The terminal,
Characterized in that it comprises a; drawing command processing unit for interpreting the drawing command information received from the electronic chart information receiving unit and generating internal information capable of rendering.
Vector tile service delivery system for electronic charts.
According to claim 11,
The terminal,
Characterized in that it comprises a; spatial information processing unit that collects the spatial information received from the electronic chart information receiving unit and reconstructs it into a form applicable to rendering.
Vector tile service delivery system for electronic charts.
According to claim 12,
The terminal,
An electronic chart rendering information generation unit that matches the drawing command and the spatial information based on the spatial index information, determines spatial information to be displayed on the screen, caches the information, and manages the information as internal information. characterized in that,
Vector tile service delivery system for electronic charts.
According to claim 13,
The terminal,
An electronic chart display unit that renders the information generated by the electronic chart rendering information generation unit in consideration of the screen area and displays it on the terminal.
Vector tile service delivery system for electronic charts.
generating, by the server of the vector tile, information for processing and rendering the electronic chart file, and transmitting the information corresponding to the request of the client; and
Requesting, by a terminal of the vector tile, a vector tile of a location to be displayed from the server, and rendering spatial information on the screen according to the response information;
The terminal,
An electronic chart information receiving unit that receives spatial information, drawing command information, and spatial index information from the server and transmits them to each corresponding information processing unit; characterized in that it comprises,
How to provide vector tile service for electronic charts.
A vector tile service providing system for an electronic chart performed by the method for providing a vector tile service for an electronic chart according to claim 15.

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