KR100878778B1 - System for editing of digital map - Google Patents

Abstract

A digital map editing system capable of editing and modifying route information is provided to improve reliability and correctness of a digital map by modifying property information for classifying sections forming the present digital map, and correctly performing edition such as merging, dividing, and modifying through comparison between a moving route of an editing terminal and the stored route in field survey. A GIS(Global Information System) includes a digital map(301), coordinate information(302), and property data(303). An editing terminal(100) includes a communication interface(101), a measurer(102), a display unit(103), an input unit(104), a determiner(105), and an editor(106) capable of merging, dividing, and modifying a polygon of a section forming the digital map by receiving the digital map, and comparing route information with a route of the editing terminal. The editor modifies the property information of the digital map by editing the route information with merging, dividing, and modifying the polygon of the digital map, and receiving a property modification signal from the input unit.

Description

Numeric Map Editing System {System for Editing of Digital Map}

The present invention relates to a digital map editing system, and more particularly, to measure the movement path of an editing terminal during field survey for checking the attribute data of a digital map, to compare it with previously stored path information on the digital map, and then, according to the comparison result. A digital map editing system can edit route information by merging, dividing, or modifying a specific area of a digital map, and modify attribute information on a digital map that does not match.

The digital map means that digital maps are produced by digitally analyzing various topographical data obtained by surveying maps, aerial photographs, satellite images, etc. from existing analog paper maps. In general, the process of constructing a digital map is as follows. When the paper map is digitized or scanned to form a digital map, the paper map is converted into an actual coordinate system according to the user's purpose through coordinate transformation. Then, attribute data is input to the numerical map that establishes the topological structure to grasp the inter-location and correlation between spatial objects.

The digital maps produced in this way enable faster and more accurate map retrieval than paper maps, and are superior in information management and usability to support various planning and decision making.

However, since the attribute data input to the digital map is input through the aerial photograph and satellite image reading, it is difficult to guarantee the accuracy of the attribute data at 100%. As a result, digital map makers perform field surveys to ensure the accuracy of digital maps, and there is a need for an operation to effectively and accurately edit digital maps and attribute data of digital maps while performing field surveys.

Accordingly, the present inventors have made diligent efforts to solve the above problems, and compared the route information on the digital map with the movement route of the editing terminal measured during the field survey, thereby merging, splitting, or modifying polygons on the digital map to edit the route information. In addition, it was confirmed that modifying the attribute information on the digital map that does not match can improve the reliability and accuracy of the digital map, thereby completing the present invention.

An object of the present invention is to modify the attribute information to classify the area constituting the existing numerical map by comparing the movement path and the pre-stored path of the editing terminal during the field survey, and to edit the merge / division / modification of the area. It is to provide a digital map editing system that can be performed accurately to improve the reliability and accuracy of the digital map.

In order to achieve the above object, the present invention (A) a GIS server including a digital map, coordinate information, attribute information and route information; And (B) receiving a numerical map including coordinate information, attribute information, and route information of the region where the editing terminal is located from the GIS server through a communication network, and comparing the received route information with the movement route of the editing terminal. And an editing terminal including a communication interface, a measuring unit, a display unit, an input unit, a determination unit, and an editing unit for merging, dividing, or modifying polygons of the area constituting the digital map. to provide.

Here, the communication interface is a transceiver or modem for connecting to a communication network, the measuring unit is a device for measuring the position of the editing terminal in real time, the display unit is a specific including the position of the editing terminal measured by the measuring unit An output device for visually expressing local digital map-related information, wherein the input unit is an input device for generating a signal by detecting a user's input behavior, and the determination unit compares the route information on the digital map with the movement route of the editing terminal. An apparatus for determining an editing mode, wherein the editing unit merges, splits, or modifies polygons on the numerical map according to the determination result of the determining unit to edit route information, and receives attribute changing signals from the input unit to receive attribute information on the numerical map. It is a device to modify.

In the present invention, the judging unit compares the route information on the numerical map with the movement route of the editing terminal, and (a) the merge editing mode when there is a route which is not routed through the editing terminal among the route information on the numerical map. Select; (b) selecting a partitioned edit mode when a route not included in the route information on the numerical map exists among the movement routes via the editing terminal; Or (c) selecting a corrected editing mode when the movement path accuracy of the editing terminal is less than a threshold.

In the present invention, the editing unit compares the route information on the numerical map with the movement route of the editing terminal, and (a) among the route information on the numerical map, if there is a route which does not pass while the editing terminal moves, and extracts it. Merging the polygons of the region containing the extracted paths; (b) extracting a route that is not included in the route information on the numerical map among the movement routes via the editing terminal, and dividing a polygon of the region including the extracted movement route based on the movement route; Or (c) when the accuracy of the movement path of the editing terminal is less than a threshold, the polygon of the region including the route information on the digital map may be modified to the polygon of the region including the movement route of the editing terminal.

As such, the route information on the digital map is compared with the movement path of the editing terminal measured during the field survey, and the route information is edited by merging, dividing or modifying polygons on the digital map, and also correcting the attribute information on the mismatched digital map. This can improve the reliability and accuracy of the digital map.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. However, in describing the embodiments, descriptions of technical contents that are well known in the technical field to which the present invention belongs and are not directly related to the present invention are omitted. This is to more clearly communicate without obscure the core of the present invention by eliminating the unnecessary description.

1 is a block diagram showing the main configuration of a system for modifying a numerical map according to an embodiment of the present invention.

Referring to FIG. 1, the numerical map editing system includes: (A) a GIS server 300 including a numerical map 301, coordinate information 302, attribute information 303, and route information 304; And (B) receiving, from the GIS server, a numerical map including coordinate information, attribute information, and route information of the region where the editing terminal is located, through the communication network 200, and receiving the route information and the movement path of the editing terminal on the received numerical map. By comparing the above, the communication interface 101, the measurement unit 102, the display unit 103, the input unit 104, the determination unit 105 and It includes an editing terminal 100 provided with an editing unit 106.

In the present invention, the GIS server 300 transmits a numerical map including attribute information, coordinate information, and route information for a specific region to the editing terminal 100 at the request of the editing terminal 100. To this end, the GIS server 300 includes a numerical map 301, coordinate information 302, attribute information 303, and route information 304.

The digital map 301 is preferably generated by analyzing and reading image data such as survey maps, aerial photographs, satellite images, etc. corresponding to a plurality of regions, and the digital map 301 corresponds to a plurality of region names and region names. It may include map information of the region, and preferably linked to or include the attribute information, coordinate information, and route information.

The coordinate information 302 includes coordinate values for polygons that classify the areas constituting the digital map according to attributes. In this case, the coordinate information 302 may be stored by mapping the map information of the region corresponding to the region name or region name stored in the numerical map 301. The coordinate value of the polygon means a coordinate value of a plurality of nodes constituting the polygon, and the interval of the plurality of nodes may be preset by the digital map maker when generating map information and attribute information by analyzing and reading the image data. Can be.

The attribute information 303 may be stored by mapping the map information of the region corresponding to the region name or region name stored in the numerical map 301. Attribute information represents information of a specific area including residential area, agricultural area, factory area, commercial area, forest area, bare land and wetland area, and is usually analyzed and analyzed from image data such as survey map, aerial photograph, satellite image, etc. Can be read. In addition, the attribute information may be classified for each attribute by a polygon generated by a plurality of nodes, and the classification for each attribute may be an area configuring the digital map.

The route information 304 is a movement route read from a digital map generated by a survey map, aerial photographs, satellite images, etc., and is mapped to map information of a region corresponding to a region name or region name stored in the digital map 301. Can be stored. The route information is preferably made of a combination of coordinate values, and the movement route refers to a route in which a person can move and a movement means including a bicycle, a motorcycle, and a vehicle.

In the present invention, the editing terminal 100 measures the coordinate value of the current location, extracts and displays a numerical map corresponding to a specific area including the current location. In addition, the editing terminal 100 continuously measures the movement route, compares the movement route with the storage route corresponding to the previously stored route information, and performs numerical map editing for merging, dividing, or modifying regions constituting the digital map. The communication interface 101, the measurement unit 102, the display unit 103, the input unit 104, the determination unit 105, and the editing unit 106 may be included to display the edited numerical map. The editing terminal 100 may include a mobile communication terminal equipped with a GPS (Global Pointing System) device, a personal digital assistant (PDA), a smart phone, a computer, a laptop, and the like.

The communication interface 101 may be a transceiver or a modem that mediates a connection to the communication network 200. Accordingly, the editing terminal 100 may transmit / receive various information with the GIS server 300 through the communication network 200.

The communication network 200 connects the editing terminal 100 and the GIS server 300 by communication to enable the transmission / reception of various information between the editing terminal 100 and the GIS server 300. In this case, the communication network 200 is preferably a communication network capable of performing both wired and wireless communication, and may be changed by a user's selection.

The measurement unit 102 is a GPS device that accurately measures the coordinates of the location where the editing terminal 100 is located, and measures the coordinate values of the movement path in real time when the editing terminal 100 moves.

The display unit 103 is an output device for visually expressing numerical map related information of a specific region including the position of the editing terminal measured by the measuring unit. That is, the display unit 103 visually outputs the numerical map of the specific area including the coordinate value where the editing terminal 100 is located, and edits such as merging / dividing / modifying the numerical map performed by the editing terminal 100. As a device for visually outputting the elapsed time, a typical monitor or the like can be exemplified. In addition, when the display unit 103 is in the form of a touch screen, the display unit 103 may also perform the role of the input unit 104.

The input unit 104 is a device that detects a user's input behavior and generates a signal corresponding to the detected input. Examples of the input unit 104 may include conventional keyboards, mice, and the like.

The determination unit 105 is a device that determines the editing mode by comparing the path information on the numerical map and the movement path of the editing terminal, a conventional microprocessor may be used. The determination unit 105 determines, by the input of the input unit 104, the numerical map editing mode as at least one of merging / dividing / modifying, or calculates the movement route measured by the measuring unit 102 and route information included in the numerical map. By comparison, the numerical map editing mode can be determined. That is, the determination unit 105 compares the route information on the digital map with the movement route of the editing terminal, and (a) merges and edits when there is a route that is not routed through the editing terminal among the route information on the numerical map. Select a mode; (b) selecting a partitioned edit mode when a route not included in the route information on the numerical map exists among the movement routes via the editing terminal; Or (c) if the edit path accuracy of the editing terminal is less than a threshold value, select a modified editing mode, and transmit the result to the editing unit 106.

The editing unit 106 is a device for editing route information by merging, dividing, or modifying polygons on the numerical map according to the determination result of the determination unit, and receiving attribute change signals from the input unit to modify attribute information on the numerical map. Conventional microprocessors can be used.

The editing unit 106 compares the route information on the numerical map with the movement route of the editing terminal, and (a) extracts and extracts the route information on the numerical map if there is a route that is not via the editing terminal. Merge the polygons of the region containing the broken path; (b) If there is a route that is not included in the route information on the numerical map among the movement routes passed by the editing terminal, the polygon is extracted based on the movement route, or the polygon of the region including the extracted movement route is divided. ; Or (c) when the accuracy of the movement path of the editing terminal is less than a threshold, the polygon of the region including the route information on the digital map may be modified to the polygon of the region including the movement route of the editing terminal.

The accuracy of the movement path may be calculated by comparing the storage path with the movement path and substituting the comparison result into Equation 1 below. That is, the total number of polygons (N) of the storage path and the moving path, the number of polygons whose paths match among the storage paths and the moving path (a), and the number of polygons whose paths do not coincide between the storage path and the moving path (d) The accuracy C can be calculated.

The threshold value can be arbitrarily adjusted by the setter, but is preferably set to 0.8 to 0.9.

In addition, the editing unit 106 may receive an attribute change signal for a specific region from the input unit 104 and modify the attribute information on the numerical map.

Referring to Figures 2a to 2e will be described an operation example of the numerical map editing system according to the present invention.

First, the measurement unit 102 of the editing terminal 100 measures the coordinates of the location where the editing terminal 100 is located. The measured coordinate values are transmitted to the GIS server 300 through the communication interface 101 and the communication network 200, and the GIS server 300 includes coordinate information, property information, and route information of a specific region including the measured coordinate values. The numerical map including the transmits to the editing terminal 100 through the communication network 200. The display unit 103 of the editing terminal 100 outputs the received numerical map on the screen in real time.

The numerical map output on the display unit may be displayed as shown in FIG. 2A. In FIG. 2A, A1 to A6, B1, C1, C1-1 to C1-3, and C4 to C6 each represent attribute information and an area having respective attribute information. In addition, the boundary of each attribute information is a polygon, and each polygon is composed of a plurality of nodes. Although not shown, the coordinate values of each node may also be displayed in FIG. 2A. In this case, the interval of each node may be an interval stored in the coordinate information 302, and is preferably set by the input of the input unit 104 in the editing terminal 100. In addition, it is preferable that the polygon becomes curved as the interval between nodes forming each polygon becomes narrower.

In this case, the editing unit 106 may delete some of the attribute information on the numerical map output to the display unit for easier editing of the numerical map. That is, the editing unit 106 may delete the region corresponding to the attribute information input from the input unit 104 and the region and coordinate values corresponding to other attribute information except the coordinate values corresponding to the region from the display unit 103. . More specifically, as shown in FIG. 2B, if the selection signal for the specific attribute received from the input unit 104 is A, B1, C1, C1-1 through C1-3, except A1 through A6 having the A attribute, and Delete C4 through C6. Reference numeral 301 indicates the position of the editing terminal.

Next, the determination unit 105 compares the route information on the numerical map with the movement information of the editing terminal, and selects a merge editing mode when there is a route which is not routed while the editing terminal moves among the route information on the numerical map. ; Selecting a partitioned edit mode when a route not included in the route information on the numerical map exists among the movement routes via the editing terminal; Or, if the movement path accuracy of the editing terminal is less than the threshold value, after selecting the corrected editing mode, and transmits the result to the editing unit 106. The editing unit 106 edits the route information by merging, dividing, or modifying polygons on the numerical map according to the determination result of the determination unit 105. Finally, when the attribute change signal is received from the input unit 104, the editing unit 106 further modifies the attribute information on the numerical map.

2C illustrates an example of a screen in which the editing terminal 100 merges the areas A1 and A2, which are areas including C1-1, when the editing terminal 100 does not pass through the C1-1 path. In the case of passing a new path across A4, an example of a screen in which the A4 area is divided into the A4-1 and A4-2 areas is shown. If the accuracy is less than the threshold, an example of a screen in which the A4 region and the C1-6 region are modified.

So far, the numerical map editing system according to the present invention has been described through the embodiment. In the present 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 the understanding of the present invention. It is not intended to limit the scope. 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.

1 is a block diagram showing the main configuration of a numerical map editing system according to an embodiment of the present invention.

2A through 2E are screen views illustrating a numerical map editing process according to an embodiment of the present invention.

* Explanation of symbols for main parts of the drawings

100: Editing terminal 101: Communication interface

102: measuring unit 103: display unit

104: input unit 105: determination unit

106: editorial unit 200: communication network

300: GIS server 301: numerical map

302: coordinate information 303: attribute information

304: route information

Claims (3)

(A) a GIS server including a digital map, coordinate information, attribute information and route information; And (B) receiving from the GIS server a numerical map including coordinate information, attribute information and route information of the region where the editing terminal is located, via a communication network, comparing the received route information with the movement route of the editing terminal, A system for automatically editing a route on a digital map including an editing terminal having a communication interface, a measuring unit, a display unit, an input unit, a determination unit, and an editing unit so that polygons of regions constituting the digital map can be merged, divided, or modified. To The communication interface is a transceiver or modem for interfacing to a communication network, the measuring unit is a device for measuring the position of the editing terminal in real time, and the display unit of a specific area including the position of the editing terminal measured by the measuring unit. An output device for visually expressing digital map-related information, wherein the input unit is an input device for generating a signal by detecting a user's input behavior, and the determination unit automatically compares the path information on the digital map with the movement path of the editing terminal. (A) selecting a merge edit mode when a route not included via the editing terminal moves among the route information on the numerical map; (b) selecting a partitioned edit mode when a route not included in the route information on the numerical map exists among the movement routes via the editing terminal; Or (c) a device for selecting a corrected editing mode when the movement path accuracy of the editing terminal is less than a threshold value, wherein the editing unit merges, splits, or modifies polygons on the numerical map according to a determination result of the determination unit to edit the route information. And an attribute change signal received from an input unit to modify attribute information on the numerical map. delete The method of claim 1, wherein the editing unit compares the route information on the numerical map with the movement route of the editing terminal, and (a) extracts the route information on the numerical map if there is a route which is not routed through the editing terminal. Merge polygons of a region including the extracted path; (b) extracting a route that is not included in the route information on the numerical map among the movement routes via the editing terminal, and dividing a polygon of the region including the extracted movement route based on the movement route; Or (c) when the accuracy of the movement route of the editing terminal is less than a threshold, modifying the polygon of the region including the route information on the digital map into a polygon of the region including the movement route of the editing terminal. The system that automatically edits.

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