KR100583400B1 - System of dynamically displaying static maps - Google Patents

Abstract

The present invention relates to a dynamic map display system for continuously displaying a series of history-specific static map images of the same region on a screen when searching a map using the Internet. The present invention has an effect that it is easy to know the transition process of the desired area by providing a system that can display a plurality of static map images of different production years, each arranged in a different frame continuously.

Geographic information system (GIS), digital maps, aerial photographs, satellite images, dynamic geographic information, history information

Description

System of Dynamically Displaying Static Maps}

1 is a block diagram showing the configuration of a dynamic map display system according to an embodiment of the present invention.

<Description of Reference Number Used in Drawing>

10a, 10b,... , 10n: client computer

20: Internet 100: dynamic map display system

110: Web Server 111: CGI Script

112: animation module 120: GIS server

121: search engine 130: memory

141: Web document DB 142: Coordinate DB

143: history DB 144: frame DB

145: numerical map DB 146: photographic image DB

The present invention relates to a map display technology based on the Internet. More specifically, when a map is searched using the Internet, a series of history-specific static map images of the same region are continuously displayed on the screen, so that the process of change of the region can be easily understood. To a dynamic map display system.

As geographic information systems (GIS) are combined with Internet technologies, Internet-based map retrieval technology, which enables users to conveniently browse the map using the Internet, is becoming more common. GIS is a computer-based system for using and managing geographic data to solve space related problems. The most basic data in constructing a GIS is a digital map. Digital maps, unlike classical paper maps, are produced by interpreting and numerically editing various terrain data obtained from survey maps, aerial photographs, satellite images, etc., and indexing them and storing them in a file format. On the other hand, recently, photo images such as aerial photographs and satellite images are displayed directly on the screen to compensate for the lack of realism and three-dimensionality, which are disadvantages of digital maps.

However, the current Internet map search technology focuses on how realistic the map of the desired area can be shown, how accurately the map reflects the real world, and how up-to-date information is. That is, the map provided as a search result only shows static geographic information at a specific point in time (whether the map is a digital map or a photographic image), but does not show dynamic geographic information that changes spatially with time. .

Accordingly, an object of the present invention is to provide a dynamic map display system for continuously displaying dynamic geographic information that changes spatially with time when searching for a map using the Internet.

In order to achieve the above object, the present invention provides a dynamic map display system having the following configuration.

The dynamic map display system according to the present invention is a system in which a plurality of client computers are connected through the Internet, and includes a web server having a CGI script and an animation module, a GIS server having a search engine, and a plurality of DBs. .

The web server receives the map search request from the client computer and sends the retrieved map image to the client computer. The CGI script controls the process of sending and receiving information with the client computer and the process of command processing in the system. The animation module executes continuous playback of the history map image in several frames. The search engine of the GIS server receives a map search command from a web server and extracts map images by history.

The system of the present invention includes a web document DB storing web document files displayed on a client computer, a coordinate DB storing coordinate values of a map image corresponding to a map search item, and a history DB storing history information of map images for each region. And a frame DB for storing frames, a digital map DB for storing digital map images, and a photo image DB for storing images of aerial photographs and satellite images.

The system of the present invention may further include a memory for temporarily storing frames each having a series of static map images mounted thereon. In addition, the history information stored in the history DB preferably includes the production year of the map image.

Hereinafter, with reference to the accompanying drawings will be described in detail an embodiment of the present invention. The embodiments described herein are illustrated to enable those skilled in the art to which the present invention pertains enough to implement the present invention, but are not intended to limit the scope of the present invention.

1 is a block diagram showing the configuration of a dynamic map display system according to an embodiment of the present invention.

Referring to FIG. 1, a plurality of client computers 10a, 10b,..., 10n are connected to the dynamic map display system 100 via the Internet 20. Users can access the display system 100 via client computers 10a, 10b, ..., 10n and retrieve a map of the desired area. The client computers 10a, 10b, ..., 10n basically have a web browser, and include a plug-in, GIS ActiveX control, Java applet, and the like. You can use the software. Client computers 10a, 10b, ..., 10n include mobile phones, PDAs, vehicle navigation, and the like, in addition to personal computers.

The dynamic map display system 100 includes a web server 110, a GIS server 120, a GIS server, a memory 130, and databases 141 ˜ 146.

The web server 110 receives a map search request from the client computers 10a, 10b, ..., 10n, analyzes it, and sends a map search command to the GIS server 120. The map information retrieved from the GIS server 120 is then sent to the web browsers of the client computers 10a, 10b, ..., 10n. The web server 110 includes a common gateway interface script (CGI) 111 and an animation module 112.

The CGI script 112 controls a process of transmitting / receiving information between the web server 110 and the client computers 10a, 10b,..., And 10n, and controls a command processing process in the system 100. The animation module 112 executes continuous playback of the history map image contained in several frames.

The GIS server 120 includes a search engine 121 and serves as an interface between the web server 110 and the GIS geographic information DBs 145 and 146. The search engine 121 receives a map search command from the web server 110 and extracts a desired static map image (ie, digital map and photo image).

The memory 130 temporarily stores frames carrying respective history map images of the same region.

The database includes a web document DB 141, a coordinate DB 142, a history DB 143, a frame DB 144, a digital map DB 145, and a photographic image DB 146.

The web document DB 141 stores web document files displayed in the web browsers of the client computers 10a, 10b, ..., 10n. The coordinate DB 142 stores coordinate values of the map image corresponding to the map search item. The history DB 143 stores history information of map images for each region, such as production year, image type, and scale. The frame DB 144 stores several frames on which history map images are mounted. The digital map DB 145 stores a digital map image, and the photographic image DB 145 stores images of aerial photographs and satellite images.

In the foregoing specification and drawings, preferred embodiments of the present invention have been disclosed, and although specific terms have been used, these are merely used in a general sense to easily explain the technical contents of the present invention and to help understanding of the present invention. It is not intended to limit the scope of the invention. It will be apparent to those skilled in the art that other modifications based on the technical idea of the present invention can be carried out in addition to the embodiments disclosed herein.

As described so far, the dynamic map display system of the present invention enables the continuous display by placing several static map images having different production years in different frames when searching for a map of a desired region using the Internet. There is.

In addition, the dynamic map display system according to the present invention can be used in a wide variety of fields, such as a growth process of a specific city, a development process of a specific region, a change in utilization of a specific land, a change in a climate pattern, and the like.

Claims (3)

A dynamic map display system comprising a plurality of client computers connected over the Internet, including: A CGI script that receives a map search request from the client computer, transmits the searched map image to the client computer, controls a process of transmitting / receiving information with the client computer, and controls a command processing process in the system; A web server including an animation module for executing continuous playback of the map image for each history contained in the web image; A GIS server having a search engine that receives a map search command from the web server and extracts map images for each history; And A web document DB for storing web document files displayed on the client computer, a coordinate DB for storing coordinate values of a map image corresponding to a map search item, a history DB for storing history information of map images for each region, and the frame A frame DB for storing the images, a digital map DB for storing the digital map images, and a photo image DB for storing the images of aerial photographs and satellite images. The dynamic map display system of claim 1, further comprising a memory for temporarily storing the frames each having a series of static map images mounted thereon. The dynamic map display system of claim 1, wherein the history information stored in the history DB includes a production year of a map image.

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