KR100563086B1 - Method for dynamically displaying static maps - Google Patents

Abstract

The present invention relates to a dynamic map display method for continuously displaying a series of history-specific static map images of the same region on a screen when searching a map through the Internet using a dynamic map display system. According to the present invention, a map search request is received from a client computer to determine whether the map type is a digital map or a photographic image, and the coordinate values and history information of the map are detected. do. The extracted static map images are mounted in each frame and transmitted to client computers continuously. According to the present invention, for example, a plurality of static map images having different production years are arranged in different frames and displayed continuously so that dynamic geospatial information that changes spatially with time can be realized on a map search screen, so that the process of changing a desired region can be easily understood. have.

Geographic information system (GIS), digital maps, aerial photographs, satellite photography, dynamic geographic information, history information, frames, animation modules

Description

{Method for 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.

2 is a flowchart illustrating an entire process of a dynamic map display method according to an embodiment of the present invention.

3 is an exemplary view of a display screen configuration to which the present invention is applied.

<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

310: image display box 320: search box

321: Search field 322: Type check box

323: Show search box 330: Toolbar

331: Continuous play icon 332: Pause icon

333: Stop icon 334: Reverse play icon

335: Fast Play Icon 336: Scroll Bar

340: Information bar 341: Map name display field

342: Production year display column 343: Scale display column

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. The present invention relates to a dynamic map display method using 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 method using a dynamic map display system that makes it easy to know the process of changing a desired region by continuously displaying dynamic geographic information that changes spatially with time when searching a map using the Internet. It is to provide.

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

The present invention provides a dynamic map display method for continuously displaying a series of static map images using a dynamic map display system, the method comprising: (a) receiving a map search request from a client computer; (b) retrieving a web document from a web document DB and transmitting it to a client computer; (c) determining whether the requested map type is a digital map or a photographic image; (d) detecting coordinate values of the map requested to be retrieved from the coordinate DB and detecting history information of the map image from the history DB; (e) retrieving the first to nth frames from the frame DB using history information; (f) selecting one of the digital map DB and the photo image DB using history information, and searching and extracting the corresponding map image from the digital map DB or photo image DB using coordinate values; And (g) mounting the extracted map image in the first to n-th frames, respectively, and continuously transmitting the extracted map image to the client computer.

In the method of the present invention, step (g) may load the extracted map image into each of the first to nth frames and store them in a memory, and then sequentially recall the stored frames and transmit them to the client computer. In addition, in step (g), map images having different production years may be arranged in different frames according to the production year of the history information.

Hereinafter, with reference to the accompanying drawings will be described in detail an embodiment of the present invention. The embodiments described herein are illustrated so that those skilled in the art to which the present invention pertains can fully practice the present invention, but not 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. 2 is a flowchart illustrating an entire process of a dynamic map display method according to an exemplary embodiment of the present invention, and FIG. 3 is an exemplary diagram of a display screen configuration to which the present invention is applied.

A user connects to the system 100 via the Internet 20 from client computers 10a, 10b, ..., 10n. At this time, the client computers 10a, 10b, ..., 10n may be personal computers, mobile phones, PDAs, vehicle navigation, and the like, as described above. The user inputs an area for map search through a search screen provided in a web browser.

The web server 110 receives the map search request from the client computers 10a, 10b, ..., 10n (step 202) and executes the CGI script 111 to display the web browser screen from the web document DB 141. Call up the web document to be done (step 204). The web document retrieved from the web document DB 141 is transmitted to the client computers 10a, 10b, ..., 10n via the CGI script 111 (step 218), and displayed on the web browser screen of the client computer. 3 is an example of such a screen.

The web server 110 also determines whether the map type requested by the user is a digital map or a photographic image (steps 206 and 208). When the map type is determined, coordinate values corresponding to the area requested by the user are detected from the coordinate DB 142 and the history DB 143, respectively, and history information of the area map image is detected (step 212).

In addition, the web server 110 executes the CGI script 111 to retrieve n frames from the frame DB 144 (step 210). The number of frames to be called is the same as the number of years of history information. For example, if the history information of a specific area map image is searched and all seven production years (1985, 1991, 1995, 1998, 2000, 2002, 2004) are detected, all the frames Bring up seven.

Coordinate values and history information detected corresponding to the map search item requested by the user are sent to the GIS server 120. The search engine 121 selects one of the numerical map DB 145 and the photographic image DB 144 using the image type of the history information, and the corresponding map from the selected geographic information DB 145 and 146 using the coordinate value. The image is retrieved and extracted (step 214).

The extracted map image is mounted in each frame and stored in the memory 130 (step 216). The animation module 112 of the web server 110 continuously retrieves a series of frames stored in the memory 130 and transmits them to the client computer (step 218), and the static map images carried in each frame are continuously displayed on the web browser screen. do. In the screen illustrated in FIG. 3, the image display window 310 is a place where a map image on a frame is displayed.

Through the above process, the static map images of the area requested by the user are continuously displayed on the web browser screen. Hereinafter, the screen configuration illustrated in FIG. 3 will be described.

The display screen appearing in the web browser is largely composed of an image display window 310, a search box 320, a toolbar 330, and an information bar 340.

The image display window 310 is a place where the searched map image is displayed on a frame. Search box 320 includes a search field 321, a type check box 322, and a search result display field 323, where the user can re-enter a map search item. The selection box 322 is a place for selecting a type of map image, and the search result display field 323 is a place where a result message of a map search is displayed.

The toolbar 330 includes a continuous play icon 331, a pause icon 332, a stop icon 333, a reverse play icon 334, a fast play icon 335, and a scroll bar 336. .

The continuous play icon 331 has a function of continuously displaying a static map image carried in each frame. The pause icon 332 is used to view a map image of a specific frame while the continuous play function is executed, and the stop icon 333 is used to return to the first frame again. The reverse play icon 334 continuously displays the static map images in reverse frame order, and the fast play icon 335 plays at a high frame moving speed. The scroll bar 336 is used to selectively view a map image of a specific frame by using a drag function of a mouse.

The information bar 340 includes a map name display field 341, a production year display field 342, and a scale display field 343, and the name, production year, and scale of the map image are displayed, respectively.

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 above, according to the dynamic map display method of the present invention, when searching for a map of a desired region using the Internet, a plurality of static map images having different production years are arranged in different frames and continuously displayed according to time. By implementing spatially changing dynamic geographic information on the map search screen, it is easy to know the change process of the desired area.

In addition, the dynamic map display method 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 the use of a specific land, a change in a climate pattern.

Claims (3)

A dynamic map display method comprising the following steps of successively displaying a series of static map images using a dynamic map display system: (a) receiving a map search request from a client computer; (b) retrieving a web document from a web document DB and transmitting it to the client computer; (c) determining whether the requested map type is a digital map or a photographic image; (d) detecting coordinate values of the map requested to be retrieved from the coordinate DB and detecting history information of the map image from the history DB; (e) reading the first to nth frames from the frame DB using the history information; (f) selecting one of the digital map DB and the photo image DB using the history information, and searching and extracting the corresponding map image from the digital map DB or the photo image DB using the coordinate values; And (g) mounting the extracted map image in the first to nth frames, respectively, and continuously transmitting the extracted map image to the client computer. The method of claim 1, wherein the step (g) includes loading the extracted map image into the first to n-th frames and storing the extracted map image in a memory, and subsequently sequentially recalling the stored frames and transmitting the same to the client computer. A dynamic map display method characterized by the above. The method of claim 1, wherein the step (g) comprises placing map images of different production years in different frames according to the production year of the history information.

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