KR102573678B1 - Precision digital map production system for synthesis of spatial information and coordinate information - Google Patents

Abstract

The present invention relates to a digital map production system, and more particularly, is characterized in that it includes an image DB, an image search module, an image output module, a point selection module, an image search module, an image correction module, and an image update module, It relates to a precision digital map production system through the synthesis of spatial information and coordinate information that can be accurately recognized by users by being modified to express only the flat part image of water.

Description

Precise digital map production system through synthesis of spatial and coordinate information

The present invention relates to a digital map production system, and more particularly, to a precise digital map production system through synthesis of spatial information and coordinate information.

A digital map means a digital map produced by analyzing and numerically editing various topographical data obtained from survey maps, aerial photographs, satellite images, etc. from existing analog paper maps. In general, the process of constructing a digital map is as follows.

First, a drawing in the form of a digital map is created by digitizing or scanning a paper map, and the created drawing is converted into an actual coordinate system to suit the user's purpose through coordinate conversion.

Then, attribute data is input into the numerical map in which the topological structure is established to determine the mutual location and correlation between spatial objects. At this time, the attribute data includes various identifier information, and as an example, a unique feature identifier (UFID) is used as an identifier for a feature of a digital map of the National Geographic Information Institute, which is assigned to the feature It is a single identifier representing location information, management agency, and other attribute information, which is uniquely assigned to a feature. It is composed of agency code, map number, feature identification code, serial number field, etc. For utilization, it is used as an identifier for linkage with other spatial information or cross-reference between geographical features.

However, since the generated drawings are input through the reading of aerial photographs and satellite images, it is difficult to guarantee the accuracy of the features of the drawings, and accordingly, it is difficult to guarantee the accuracy of attribute data given to each feature.

For this reason, digital map producers are producing more accurate digital maps through the process of the digital map generation method described in FIG. 1 to ensure the accuracy of the digital maps.

Referring to FIG. 1, a digital map maker prints a drawing generated through digitizing or scanning, such as a survey map, aerial photograph, or satellite image, on paper (S10), and prints the corresponding region of the printed drawing. Conduct a site survey (S20).

At this time, in the field survey, whether various artificial features and natural terrains such as buildings, roads (paved, unpaved), railways, parks, rivers, mountains, rice fields, fields, etc. actually exist, or actual places Check directly whether the size, direction, and shape of artificial features and natural features located in the map are accurately displayed on the drawing, and if there are any other parts, manually correct them on the drawing.

In addition, attribute data such as trade name, name, and basic information (number of floors of a building, width of a road or river, etc.) of the artificial landmark and natural terrain are manually marked at the corresponding location on the drawing.

In this way, when the artificial features and natural features incorrectly depicted on the drawings and the property data of each artificial features and natural features are completed through the field survey, the change information is displayed on the drawings initially generated through computerization using the indicated drawings. And by displaying the attribute data, correcting and supplementing the results of drawing and map input, in-place editing is performed to grasp the geographical correlation of topography and features (S30).

Then, the topography and features edited through the in-place editing are constructed in a geometric form, and the necessary object is a model of point, line, plane, and network area division, or a geometric model that combines them, which is the point, line, and plane shape defined by the National Geographic Information Institute. Structural editing is performed to manually display and edit corresponding artificial features and natural features individually through computerization based on the image (S40). At this time, in the structured editing, the attribute data displayed on the drawing is edited in a state of being hidden (stored without being displayed on the screen).

When the structural editing is completed in this way, a digital map is produced and printed using a software program provided by the National Geographic Information Institute, and provided to the National Geographic Information Institute, which has requested digital map production (S50). At this time, the software program is a program that changes the structured and edited diagram into a defined form, and a known program generally provided by the National Geographic Information Institute is used as it is.

However, in the conventional digital map production method, the provision of aerial photographic images must be provided, and since the aerial photographic images are taken from an aircraft located at a certain altitude from the ground, other ground objects adjacent to it, except for ground objects located in the vertical direction of the aircraft, must be provided. There is a problem that there is no choice but to be filmed with the side included.

Therefore, in the digital map produced through the conventional digital map production method, even though it is the same map, neighboring buildings look tilted in a completely different direction, and the user has difficulty in interpreting the map for an unfamiliar area.

The matters described as the background art above are only for understanding the background of the present invention, and should not be taken as an admission that they correspond to prior art already known to those skilled in the art.

The present invention is to solve the problems of the prior art described above, and is modified to express only the flat part image of the ground object to provide a precise digital map production system through synthesis of spatial information and coordinate information that can be accurately recognized by users. It has a purpose.

The technical problems to be achieved by the present invention are not limited to the above-mentioned technical problems, and other technical problems not mentioned will be clearly understood by those skilled in the art from the description of the present invention. .

The configuration of the present invention for achieving the above object is an image DB for storing photographed image data to which GNSS coordinates are applied, photographed altitude information, and height information of ground objects; An image search module for searching data and information of an image DB; an image output module outputting the captured image data searched by the image search module through a touch screen having an input function; Check the coordinate values of a pair of initial points and a pair of end points specified in the captured image output to the image output module, set a reference straight line connecting the coordinate values, and set the range enclosed by the initial and end points to the range of the road image Branch selection module to be confirmed as; an image search module for searching for a modified terrestrial object image according to preset search criteria; The center distance between the reference ground object and the modified ground object, the shooting altitude and the height of the modified ground object are checked to calculate the camera's shooting angle, and the corrected plane part is checked by checking the plane part width of the modified ground object image and the camera's shooting angle. an image correction module that calculates a width, separates a plane portion image of the modified terrestrial object image before correction, adjusts its size according to the corrected plane portion width, and removes a side image of the modified terrestrial object image; And synthesizing the corrected flat part with the captured image from which the side image has been removed, and checking the GNSS coordinates of the shaded part formed by removing the side image of the modified terrestrial image, and image search for other captured images including the actual image of the shaded part in the image DB. An image update module that searches through the module, matches the size and resolution of real images of other aerial images, synthesizes them into the shaded part, and updates the captured image data of the image DB; It is characterized in that it includes.

A precise digital map production system through synthesis of spatial information and coordinate information according to an embodiment of the present invention is installed on the ground surface adjacent to the reference ground object to photograph a modified ground object and the center distance between the reference ground object and the modified ground object. and a ground measuring device that calculates height information of a ground object. It is preferable to further include.

In the precise digital map production system through the synthesis of spatial information and coordinate information according to an embodiment of the present invention, the ground measuring device includes: a foundation installed on the ground; A shooting support that is spaced apart from the top of the foundation; A lifting and rotating unit coupled to the upper part of the base and connected to the side of the shooting support to lift and rotate the shooting support; A movement assisting device coupled to an upper portion of the lifting and rotating unit; A shield coupled to an upper portion of the mobility aid; and a camera unit accommodated inside the shielding unit. It is preferable to include.

In the precision digital map production system through synthesis of spatial information and coordinate information according to an embodiment of the present invention, the lifting and rotating unit includes: a lifting and rotating body coupled to an upper surface of the base unit; A motor frame provided on the lifting and rotating body; Left and right movement motor provided on the motor frame; A left and right moving frame provided to move in the motor frame and connected to the left and right moving motor to move in the direction of the photographing support; A rotating part rotation motor provided on the left and right moving frame and moved together with the left and right moving frame; A holder frame that is connected to the rotation motor of the rotating part, moves closer or farther in the direction of the shooting support, and is coupled to the side of the shooting support; And a vertical lifting motor provided on the motor frame and gear-coupled with the lifting guide rack provided on the lifting rotating body to lift the motor frame. It is preferable to include.

In the precision digital map production system through the synthesis of spatial information and coordinate information according to an embodiment of the present invention, the movement assistance device includes: a first driving unit provided on the upper part of the lifting and lowering unit to drive a camera unit in the forward and backward directions and in the height direction; a connection unit provided in the first driving unit and moved in the forward and backward directions and in the height direction; And a second driving unit having one side coupled to the connection unit and having a camera unit mounted thereon; Including, the connection unit is preferably coupled to the rotation and angle adjustment to the second driving unit.

In the precision digital map production system through the synthesis of spatial information and coordinate information according to an embodiment of the present invention, the first driving unit includes a moving body coupled to an upper part of the lifting and rotating unit; a horizontal movement control unit provided to move in the longitudinal direction of the moving body; And it is provided to be lifted to the horizontal movement control unit and the elevation control unit to which the connection unit is coupled; It is preferable to include.

In the precision digital map production system through the synthesis of spatial information and coordinate information according to an embodiment of the present invention, the horizontal movement control unit includes a pair of first rails spaced apart from each other on the upper surface of the moving body; a pair of first blocks having lower portions movably coupled to a pair of first rails; a moving plate coupled to the upper surface of the pair of first blocks and moved together with the pair of first blocks; And a lifting support plate vertically coupled to the moving plate; It is preferable to include.

In the precision digital map production system through the synthesis of spatial information and coordinate information according to an embodiment of the present invention, the elevation control unit includes a pair of second rails coupled to the elevation support plate at a distance; and a pair of second blocks each coupled to a pair of second rails so as to be liftable. It is preferable to include

In the precise digital map production system through synthesis of spatial information and coordinate information according to an embodiment of the present invention, the shielding unit includes: a base body in which an open area coupled to an upper portion of the movement assisting means is formed; a base shielding body provided on top of the base body and covering an open area of the base body; A first shielding body provided to be elevated on the base shielding body and covering the open area of the lower part of the base shielding body; a second shielding body provided to be elevated on the first shielding body and covering an open area under the first shielding body; And one side is coupled to the base shielding body and the other side is coupled to the second shielding body to elevate the first shielding body and the second shielding body shield drive unit; It is preferable to include.

In the precision digital map production system through the synthesis of spatial information and coordinate information according to an embodiment of the present invention, the shielding drive unit includes a cylinder body provided on top of the base shielding body; A cylinder rod whose one side is connected to the cylinder body and is stretchable; Cylinder bracket coupled to the end of the cylinder rod; A connecting unit that has one side coupled to the cylinder bracket and moves up and down like a cylinder rod; An elevating guide bar having one end coupled to the base shield body and the other end passing through the base support plate coupled to the base shield body and coupled to the first support plate of the first shield body; An elevation connection body disposed inside the elevation guide bar to connect the connection unit and the elevation guide bar to elevate the connection unit and the elevation guide bar together; One side is coupled to the elevating guide bar and the other side is coupled to the second shielding body to elevate the lower elevating guide bar; and a lower stopper provided on the lower lifting bar to limit the rising height of the lower lifting bar. It is preferable to include.

The present invention having the above configuration removes the side image from the ground object image and outputs only the flat image to minimize interference with other neighboring land images, and effectively provides long roads in areas where numerous land objects are located, such as downtown areas. It has the effect of performing guidance.

In addition, since the present invention can accurately calculate the center distance between the reference ground object and the corrected ground object and the height information of the corrected ground object using the ground measuring device, there is an advantage in that accuracy is improved and efficient operation is possible.

It is revealed that the accompanying drawings are illustrated as references for understanding the technical idea of the present invention, and thereby the scope of the present invention is not limited thereto.
1 is a flowchart for explaining a general digital map production and update process;
Figure 2 is a block diagram showing each component of a precise digital map production system through synthesis of spatial information and coordinate information according to an embodiment of the present invention.
3 is an exemplary view showing a photographed image to which a digital map production system according to an embodiment of the present invention is applied;
4 is a flowchart illustrating a processing method of a digital map production system according to an embodiment of the present invention.
FIG. 5 is an exemplary view showing a state of a ground object image modified by a digital map production system according to an embodiment of the present invention.
6 is an image showing a vertical image corrected according to a digital map production system according to an embodiment of the present invention.
7 is an exemplary diagram for explaining an aerial photograph for application of a digital map production system according to an embodiment of the present invention;
8 is a diagram schematically showing the overall configuration of a ground measuring device according to an embodiment of the present invention.
Figure 9 is a view showing the overall appearance of the lifting and rotating unit according to an embodiment of the present invention.
10 is a view showing the overall appearance of a movement assistance device according to an embodiment of the present invention.
11 is a cross-sectional view of a connection unit according to an embodiment of the present invention;
12 is a view showing an overall appearance of a shielding unit according to an embodiment of the present invention.
13 is a view showing a rear surface of a shielding unit according to an embodiment of the present invention.
14 is a view showing an operation in which the first shielding body and the second shielding body descend according to an embodiment of the present invention.

Hereinafter, based on the accompanying drawings, the present invention will be described in detail so that those skilled in the art can easily practice the present invention. However, the present invention may be embodied in many different forms and is not limited to the embodiments described herein.

In order to clearly describe the present invention, parts irrelevant to the description are omitted, and the same reference numerals are assigned to the same or similar components throughout the specification.

In addition, the terms or words used in this specification and claims should not be construed as being limited to ordinary or dictionary meanings, and the inventors use the concept of terms appropriately to describe their invention in the best way. It should be interpreted as a meaning and concept consistent with the technical idea of the present invention based on the principle that it can be defined.

2 is a block diagram showing each configuration of a precise digital map production system through synthesis of spatial information and coordinate information according to an embodiment of the present invention, and FIG. 3 is a digital map production system according to an embodiment of the present invention. It is an exemplary view showing a photographed image to which this is applied.

As shown, the digital map production system according to the present invention includes an image DB 210, an image search module 220, an image output module 230, a point selection module 240, an image search module 250, and image correction. A module 260 and an image update module 270 are included.

The image DB 210 stores photographed image data to which GNSS (Global Navigation Satellite System) coordinates are applied, photographed altitude information of an aircraft, and height information of a ground object, and the image search module 220 stores specific images of the image DB 210. Retrieve data and information.

The image output module 230 reads and outputs the captured image data retrieved by the image search module 220. The image output module 230 outputs captured image data to a known touch screen having a screen input function.

The image output module 230 may have a function of confirming a point where the user touches the touch screen and inputting corresponding information. For example, the image output module 230 checks image data and outputs it as an image, such as 'Photoshop (a raster graphic editor developed by Adobe Systems)' and 'Paint', a graphic editor of Windows, a representative operating system of Microsoft. Any conventional program that can be used may be used.

The point selection module 240 sets a search criterion for the modified terrestrial object image 20a to be corrected in the photographed image. As such a search criterion, the road image 30 included in the photographed image may be utilized.

For example, in an area adjacent to the reference ground object 10 and the modified ground object 20, a road paved with uniformly colored aggregate such as asphalt is located. Since this road is very close to the reference ground object 10 or the modified ground object 20, as shown in FIG. 3, the side surface of the modified ground object 20 is photographed and the modified ground object image showing the appearance inclined toward the road ( 20a) inevitably occupies the edge portion of the road image 30.

The point selection module 240 determines an image within a corresponding range as the road image 30 based on a pair of initial points P1 and a pair of end points P2 designated by the user through the touch screen. That is, the point selection module 240 checks each coordinate value of the initial point (P1) and end point (P2) selected by the user and connects them with a reference straight line, and the reference straight line formed in this way becomes the boundary of the road and forms a road image ( 30) is to be determined.

The image search module 250 searches the modified terrestrial object image 20a according to the search criterion set by the point selection module 240. Specifically, the image search module 250 checks the color of the road image 30 whose range and its boundary are determined by the point selection module 240, and then the designated color of the pixel corresponding to the edge of the road image 30. is compared with the color of the road image 30 to determine whether it matches.

The image search module 250 checks the designated color of the pixel corresponding to the previously set reference straight line, and compares the identified color with the color of the road image 30 to match the color of the road image 30 over a certain length. If a section (T) of pixels assigned the same color is identified while being inconsistent with each other, the section (T) is regarded as the location of the modified terrestrial object image 20a and set as a target for correction.

If the designated color of the pixel corresponding to the modified ground object image 20a and the designated color of the pixel corresponding to the road image 30 match and the section T is not confirmed, the designated color of the pixels around the reference straight line In addition, if the same or similar color to the color of the road image 30 is continuously confirmed even in pixels located away from the reference straight line by a certain distance or more, it is regarded as a modified ground object image 20a and set as a target for correction.

The image correction module 260 corrects the set modified terrestrial object image 20a, and the image update module 270 applies the corrected terrestrial object image 20a to the existing captured image data for synthesis and update processing. do.

4 is a flow chart showing a processing method of a digital map production system according to an embodiment of the present invention, and FIG. 5 shows a terrestrial image modified by the digital map production system according to an embodiment of the present invention. 6 is an image showing a vertical image corrected according to a digital map production system according to an embodiment of the present invention, and FIG. 7 is an image for applying a digital map production system according to an embodiment of the present invention. It is an exemplary diagram for explaining an aerial view.

The digital map production system according to the present invention corrects the side of the ground object captured during aerial photography so that the completed image as a map can accurately display only the plane of the ground object, and through this, the captured image can effectively perform the function of the map. let it be

S11: Selection step for correction target

The image output module 230 outputs an aerial photographed image including various ground object images 10a and 20a, and the point selection module 240 and the image search module 250 output the modified ground object image 20a. Explore and decide.

S12: step of setting the reference point to be corrected

When the modified terrestrial object image 20a is determined, the range occupied by the modified terrestrial object image 20a is checked in the photographed image, and the boundary lines of the modified terrestrial object image 20a are set as reference points a1 to a6. .

As shown in FIG. 5(a), the boundary line selected as the reference points a1 to a6 also includes the boundary lines a3 and a4 located at the boundary between the flat part and the side surface of the modified terrestrial object image 20a.

The image search module 250 confirms the designated color of the pixel corresponding to the modified terrestrial object image 20a to determine the boundary of the modified terrestrial object image 20a, and checks the corner of the determined terrestrial object image 20a to determine the reference point ( a1 to a6).

When the reference points a1 to a6 of the modified terrestrial object image 20a are set, the image search module 250 determines the overall width w1 and the plane of the modified terrestrial object image 20a based on these reference points a1 to a6. Each sub-width w2 is calculated.

In addition, when the reference points (a1 to a6) are set, the image search module 250 checks the coordinate values of the corresponding points through pixels, and uses these coordinate values to calculate the modified terrestrial object image 20a by a known calculation method. The overall width (w1) and the flat part width (w2) of can be calculated. Here, the total width w1 and the flat part width w2 will be the lengths of the whole and the flat part of the modified terrestrial object image 20a in an inclined direction.

S13: standard target selection step

When photographing the ground from an aircraft in flight, a plane of a specific ground object may be accurately photographed as shown in FIG. 7 . Of course, since it is impossible to photograph only the plane of the reference ground object 10 at 100% and output it to an aerial photographic image, if the user can identify the surrounding road image 30 while being perceived as a flat surface when visually checked, the reference ground object image (10a) is sufficient to be selected.

On the other hand, it is preferable that the user selects the reference ground object 10 that satisfies the above conditions as a reference object, and selects it in consideration of the position of the ground object 20 selected as the correction object. That is, the reference ground object 10 selects a ground object located on the same straight line as the inclined direction so that the side of the ground object 20 is visible, and uses it as a reference object.

Therefore, the image search module 250 forms a search straight line in the direction in which the modified ground object image 20a covers the road image 30, and the image output module 230 outputs this search straight line to the touch screen so that the user can Among the images located on the search straight line, a point to be selected as the reference ground object image 10a is touched to input it.

S14: reference target reference point setting step

When the reference ground object image 10a is selected, the image search module 250 checks the designated color of the pixel at the point touched by the user, and sets the range of pixels identical/similar to the color to the boundary of the reference ground object image 10a. is determined, and the determined boundary lines are set as reference points (b1 to b4).

When the reference points b1 to b4 are set, the image search module 250 calculates the plane width L1 of the reference ground object image 10a as described above based on the reference points b1 to b4.

S15: shooting angle calculation step

When the reference ground object image 10a is selected, the image correction module 260 photographs the reference ground object 10 while the aircraft being photographed is located directly above the reference ground object 10, as shown in FIG. structure by doing

The image correction module 260 checks the actual center distance d between the reference ground object 10 and the modified ground object 20 . The actual center distance d between the reference ground object 10 and the modified ground object 20 can be accurately obtained through the ground measuring instrument 100 described later.

In addition, the image retrieval module 220 checks the height h2 of the aircraft and the actual height h1 of the fixed ground object 20 when the captured image is captured in the image DB 210 . The actual height h1 of the correct ground object may also be obtained through the ground measuring device 100 described later.

The image correction module 260 calculates a photographing angle θ of the modified ground object 20 photographed from the aircraft. Here, the photographing angle θ refers to an angle between a photographing direction of the camera and an arrangement direction of the crystal object 20 . Therefore, while the aircraft is located directly above the reference ground object 10, the photographing angle θ at which the camera of the aircraft photographs the reference ground object 10 will be '0 degree'.

The photographing angle (θ) calculation is performed as [tanθ = (h2 - h1) / d].

S16: Correction Target Range Calculation Step

As shown, when the camera of the aircraft is not located directly above the modified terrestrial object 20, the photographed modified terrestrial object image 20a is output including the flat part and the side part of the modified terrestrial object 20.

That is, the area within the aerial photographic image that the modified ground object image 20a appears to occupy is different from the area obtained by calculating the plane area occupied by the modified ground object 20 on the ground at the scale of the aerial photographic image.

To explain this in more detail, the modified terrestrial object image 20a is photographed obliquely during aerial photography, and the modified terrestrial object image 20a includes the flat and side parts of the terrestrial object 20 As a result, the ground portion not actually occupied by the over-the-drop object 20 is covered by the over-the-drop object 20.

In the aerial photographic image taken in this way, the part covered by the modified ground object 20 is also confirmed as a part of the modified ground object 20, so that the modified ground object image 20a appears as a structure larger than the actual appearance of the modified ground object 20 do.

Since this error obscures even the road image 30 adjacent to the corrected ground object image 20a so that it is not visible, a user using a map created based on the aerial photographed image is confused.

Therefore, in order to solve this problem, the size of the corrected ground object image 20a output to the aerial photographed image is corrected to correct the aerial photographed image that gives the same effect as the aircraft photographed directly above the corrected ground object 20. proceed

To this end, the image correction module 260 calculates the width w2 of the plane portion of the fixed ground object image 20a and the photographing angle θ in the aerial photographed image to be corrected, and draws the plane of the fixed ground object 20 directly. The corrected flat part width (L2) when photographing in the room is obtained.

Calculation of the width (L2) of the plane portion is performed as [sin(90-θ) = w2 / L2].

S17: correction target image correction step

The image correction module 260 completes the corrected terrestrial object image 20a' corrected to the corrected plane part width L2. In the corrected corrected terrestrial object image 20a', the side portion of the existing corrected terrestrial object image 20a is removed, and the size of the flat portion is corrected according to the corrected flat portion width L2.

First, only the plane portion of the existing modified terrestrial object image 20a is incised and secured as an independent plane image. The plane image secured in this way is deformed according to the ratio of the width (w2) of the plane section of the existing modified terrestrial object image (20a) to the width (L2) of the corrected plane section of the modified terrestrial object image (20a'). A known image modification technique may be applied.

The criteria for synthesizing the corrected plane parts using the image update module 270 are the boundary lines a1 and a2 directly facing the reference ground object image 10a. This is because the boundary lines a1 and a2 are always fixed positions on the ground compared to the reference ground object image 10a regardless of the inclined shape of the modified ground object image 20a.

S18: image synthesis step

As shown in FIG. 5, when the correction of the modified terrestrial object image 20a' is completed, processing of the shaded portion D, which was occupied by the existing modified terrestrial object image 20a and was not output, is required. To this end, the image update module 270 searches the image DB 210 for other aerial photographic images in which the actual image of the shaded portion D is captured through the image search module 220, and corrects the other aerial photographic images retrieved in this way. Match the size and resolution of the aerial photographic image included in the ground object image 20a'.

For reference, since the aerial image stored in the image DB 210 is data that performs its function as a digital map, the aerial image is digital map data to which GNSS coordinates are applied.

Therefore, the image update module 270 checks the GNSS coordinates of the shaded portion (D), and based on this, searches the image DB 210 to search for other aerial images in which the entire shaded portion (D) is normally output. there is.

When the size and resolution of the real image and the aerial photographed image match, the image updating module 270 converts the real image of the shaded portion D cut from the other aerial photographic image to the aerial photograph including the modified terrestrial image 20a'. As shown in FIG. 6 by combining the image with the shaded part (D), the shaded part (D) is removed and a complete vertical image is output.

S19: Vertical image data update step

When correction of the modified terrestrial image 20a' is completed, the image update module 270 inputs the aerial photographic image data synthesized with the real image into the image DB 210 and updates the image.

8 is a view schematically showing the overall configuration of a ground measuring instrument according to an embodiment of the present invention, and FIG. 9 is a view showing the overall appearance of a lifting and rotating unit according to an embodiment of the present invention.

As shown in FIG. 7, the ground measuring device 100 is installed at a location adjacent to the reference ground object 10 to photograph the ground object and the center distance (d) between the ground object and the ground object and the height information of the ground object. (h1) can be calculated.

As shown, the ground measuring device 100 is coupled to a base 300 installed on the ground, a shooting support 310 spaced apart from the top of the base 300, and an upper portion of the base 300 The lifting and rotating unit 400 connected to the side of the shooting support 310 to lift and rotate the shooting support 310, the moving auxiliary device 500 coupled to the upper part of the lifting and rotating section 400, and the moving auxiliary device 500 It includes a shielding unit 600 coupled to the top and a camera unit 320 accommodated inside the shielding unit 600 .

When the camera unit 320 is arranged so as to view the corrected ground object 20 in a straight line, it is possible to obtain distance information (d') from the ground finder to the corrected ground object, and from the ground finder to the top of the corrected ground object. Angle information (θ′) of can be obtained.

Using this information, the center distance (d) between the reference ground object and the correction ground object is obtained as [d = d' + L1/2 + L2/2], and the height information (h1) of the correction ground object is [tanθ' = h1/d'].

Of course, at this time, due to the size and height of the ground measuring device 100 itself, there may be some errors in the center distance (d) between the reference ground object and the corrected ground object and the height information (h1) of the corrected ground object. It is negligible compared to the size and height of a building that is hundreds of meters high.

The photographing support 310 supports the camera unit 320 and is formed in a hexahedral shape. At the upper end of the photographing support 310, a movement assist device 500, a shielding unit 600, and a camera unit 320 are coupled.

The lifting/rotating unit 400 lifts and lowers the photographing support 310 on which the camera unit 320 is mounted, and also rotates it forward and backward, so that the position of the camera unit 320 on a vertical line can be more smoothly adjusted.

The lifting and rotating unit 400 is provided on the lifting and rotating body 410 coupled to the upper surface of the base 300, the motor frame 420 provided on the lifting and rotating body 410, and the motor frame 420. A left and right moving motor 430, a left and right moving frame 440 which is provided to move on the motor frame 420 and is connected to the left and right moving motor 430 and moves in the direction of the shooting support 310, and a left and right moving frame ( 440) is provided in the left and right moving frame 440 and is connected to the rotating part rotating motor 450 and the rotating part rotating motor 450 moves closer or farther in the direction of the filming support 310 and the filming support 310 The holder frame 460 coupled to the side of the motor frame 420 and the lift guide rack 413 provided on the lift rotation body 410 are gear-coupled to lift the motor frame 420. 470).

The lifting and rotating body 410 may be provided by combining a plurality of vertical frames 411 and a plurality of horizontal frames 412 .

In this embodiment, the plurality of vertical frames 411 are provided with lifting guide racks 413 in the height direction of the vertical frames 411, and the lifting guide racks 413 are engaged with the driving gears of the vertical lifting motors 470. The elevation of the motor frame 420 may be guided.

The left and right movement motor 430 may move the left and right movement frame 440 left and right in the direction of the photographing support 310 .

The rotation part rotation motor 450 may rotate the holder frame 460 clockwise or counterclockwise, and at this time, the recording support 310 coupled to the holder frame 460 also clockwise like the holder frame 460. (backward) or counterclockwise (forward).

The vertical lifting motor 470 is provided on the motor frame 420 and gear-coupled with the lifting guide rack 413 provided on the lifting rotating body 410 to lift the motor frame 420 up and down. As the motor frame 420 moves up and down, the camera unit 320 can also move up and down.

This embodiment has the advantage of being able to actively adjust the position of the camera unit 320 on a vertical line by the lifting and rotating unit 400 .

10 is a view showing an overall appearance of a movement assistance device according to an embodiment of the present invention, and FIG. 11 is a view showing a cross-sectional view of a connection unit according to an embodiment of the present invention.

As shown, the movement assistance device 500 includes a first driving unit 510 coupled to an upper portion of the lifting and rotating unit 400 to drive the camera unit 320 in the forward and backward directions and the height direction, and the first driving unit 510 ) and a connection unit 520 that moves in the front-back direction and height direction, and one side is coupled to the connection unit 520 and includes a second driving unit 530 to which the shielding unit 600 and the camera unit 320 are mounted. do.

In this embodiment, the first driving unit 510 is moved up and down by the movable body 511, the horizontal movement control unit 512 provided to move in the longitudinal direction of the movable body 511, and the horizontal movement control unit 512. It is provided and includes a lift control unit 513 to which the connection unit 520 is coupled.

The moving body 511 of the first driving unit 510 may be coupled to an upper portion of the lifting/rotating unit 400 .

The horizontal movement control unit 512 of the first driving unit 510 includes a pair of first rails 512a spaced apart from each other on the upper surface of the moving body 511 and a pair of first rails 512a on the lower side. A pair of first blocks 512b movably coupled to, and a moving plate 512c coupled to the upper surface of the pair of first blocks 512b and moved together with the pair of first blocks 512b And, a lifting support plate 512d vertically coupled to the moving plate 512c.

The elevation control unit 513 of the first driving unit 510 is capable of being moved up and down on a pair of second rails 513a spaced apart from each other and coupled to the elevation support plate 512d and on the pair of second rails 513a, respectively. It includes a pair of second blocks 513b to be coupled, and the connection unit 520 can be detachably coupled to the pair of second blocks 513b.

In this embodiment, the second drive unit 530 on which the camera unit 320 is mounted is coupled to the connection unit 520, and the connection unit 520 is coupled to a pair of second blocks 513b, so that a pair of When the second block 513b ascends or descends, the camera unit 320 may also move in the height direction of the pair of second rails 513a.

In addition, the pair of second rails 513a are coupled to the lifting support plate 512d, the lifting support plate 512d is moved like the moving plate 512c, and the moving plate 512c is the pair of second rails 512c. It can be moved in the longitudinal direction of the pair of first rails 512a by one block 512b. In this embodiment, the first block 512b and the second block 513b may be connected to and controlled by a control unit (not shown).

The connection unit 520 has one side coupled to the pair of second blocks 513b and the other side coupled to the second driving unit 530 and coupled to the second driving unit 530 so as to be rotatably and angularly adjusted to form the second driving unit 520. The camera unit 320 mounted on the 530 may also be rotated and angle adjusted.

In this embodiment, a coupling plate 521 coupled to the second block 513b of the coupling unit 520, a coupling base body 522 provided on one side of the coupling plate 521, and a coupling base body 522 The ball member 523 provided at the end of and detachably coupled to the frame body 531 provided in the second driving unit 530 and the ball member 523 rotatably accommodated therein, the coupling body 524, and the coupling A rotation guide body 525 disposed between the inner wall of the body 524 and the ball member 523 to guide rotation of the ball member 523, and a coupling body 524 in an area facing the coupling plate 521 It includes a support sheet 526 provided on the ball member 523 to prevent separation.

In this embodiment, the second driving unit 530 is detachably coupled to the coupling body 524 by the frame body 531, and the coupling body 524 is rotatably and angularly coupled to the ball member 523, The second driving unit 530 is also rotated and angle adjusted, and thus the camera unit 320 provided in the second driving unit 530 can also be rotated and angle adjusted.

In this embodiment, a hole member 522a is provided inside the connection base body 522, and this hole member 522a may also be provided inside the ball member 523.

In addition, in this embodiment, a support protrusion 525a is provided on the inner wall of the rotation guide body 525, and the support protrusion 525a is inserted into a groove provided on the outer wall of the ball member 523 to form a ball member 523. can guide the rotation of more stably.

Figure 12 is a view showing the overall appearance of the shield according to an embodiment of the present invention, Figure 13 is a view showing the rear surface of the shield according to an embodiment of the present invention, Figure 14 is an embodiment of the present invention It is a view showing the operation state in which the first shielding body and the second shielding body are lowered according to.

As shown, the shielding unit 600 according to the present invention may shield the camera unit 320 disposed inside from the outside. Since the shielding unit 600 can block internal parts and the outside, it can protect the camera unit 320 from being damaged during transportation and installation of the collecting device.

Specifically, the shielding unit 600 includes a base body 601, a base shielding body 610, a first shielding body 620, a second shielding body 630, a shielding driving unit 640, a stopper unit 650, etc. consists of the composition of

The base body 601 is coupled to an upper portion of the movement assistance device 500, may have a hexahedron shape with an open front part, and may be provided with an open rear part.

A protruding support body 602 protruding forward may be provided at an upper end of the base body 601 as a detachable coupling place of the base shield body 610 . In addition, a guide cutout hole 603 is provided in the protruding support body 602, and the cylinder body 641 provided in the shield 600 can be inserted and accommodated therein. As a result, interference between the cylinder body 641 and the protruding support body 602, that is, collision can be prevented.

The base shielding body 610 may be coupled to the protruding support body 602 of the base body 601 to shield an open area of the base body 601, for example, a front area or a rear area of the base body 601. In the case of shielding both the front region and the rear region of the base body 601, it may be disposed at the front and rear of the base body 601, respectively.

The base shielding body 610 is coupled to the upper part of the base body 601 to cover the open area of the base body 601, and the first shielding body 620 is provided to be lifted to the base shielding body 610 to shield the base. It covers the open area of the lower part of the body 610, and the second shielding body 630 is provided to be elevated on the first shielding body 620 and covers the open area of the lower part of the first shielding body 620.

One side of the shielding driver 640 is coupled to the base shielding body 610 and the other side is coupled to the second shielding body 630 to elevate the first shielding body 620 and the second shielding body 630 . The stopper part 650 is provided on the base shielding body 610 and the first shielding body 620 to limit the descending heights of the first shielding body 620 and the second shielding body 630 .

Base bending plates 611 may be provided on both sides of the base shield body 610 and supported on the outer wall of the base body 601 . A base support rail 613 is provided in the base bending plate 611 to guide the elevation of the first elevation rail 623 provided in the first shielding body 620 .

In this embodiment, a base support plate 612 is provided at the center of the base shield body 610 . The base support plate 612 may be provided with a base guide body 614 to guide the elevation of the elevation guide bar 645 of the shield drive unit 640 . A cutting hole 645a may be provided in the elevating guide bar 645 .

The first shielding body 620 is provided to be elevated on the base shielding body 610 to shield the open area of the base body 601 .

A first bending plate 621 may be provided on both sides of the first shielding body 620 and supported on an outer wall of the base body 601 . A first lift rail 623 is provided on the first support plate 622, and the first lift rail 623 is supported by the base support rail 613 and can be moved up and down in a sliding manner.

And, in this embodiment, the first support rail 624 is coupled to the first lift rail 623 to guide the sliding movement of the second lift rail 633 provided on the second shielding body 630 .

In addition, a first support plate 622 may be provided at the center of the first shielding body 620 .

The second shielding body 630 is provided to be elevated on the first shielding body 620 to shield the open area of the base body 601 .

A second bending plate 631 may be provided on both sides of the second shielding body 630 . The second lifting rail 633 described above may be provided on the second bending plate 631 .

In addition, in this embodiment, a bent piece 632 is provided at the lower end of the second shielding body 630, and the bent piece 632 may be supported on the front or rear wall of the base body 601.

The shield drive unit 640 has one side coupled to the base shield body 610 and the other side coupled to the second shield body 630 to elevate the first shield body 620 and the second shield body 630. can In this embodiment, the shield drive unit 640 may be operated by being connected to a control module (not shown).

The shielding driving unit 640 includes a cylinder body 641 provided on the top of the base shielding body 610, a cylinder rod 642 having one side connected to the cylinder body 641 and extending and contracting, and a cylinder rod 642 A cylinder bracket 643 coupled to the end of the cylinder bracket 643, one end coupled to the connection unit 644 that is elevated like the cylinder rod 642, and one end coupled to the base shield body 610 and the other The side portion passes through the base support plate 612 and connects the lift guide bar 645 coupled to the first support plate 622 of the first shield body 620, the connection unit 644, and the lift guide bar 645. The connection unit 644 and the lifting guide bar 645 are lifted together and the lifting connection body 646 disposed inside the lifting guide bar 645, one side is coupled to the lifting guide bar 645 and the other side is the first A lower lift bar 647 coupled to the second shield body 630 and lifted like the lift guide bar 645, and a lower stopper provided on the lower lift bar 647 to limit the height of the lower lift bar 647 ( 648).

The upper end of the cylinder body 641 may be detachably bolted to the base shield body 610 using a bracket.

The connection unit 644 is coupled to the cylinder bracket 643 and is coupled to the first connection body 644a disposed below the first support plate 622, and is coupled to the first connection body 644a and the first support plate ( 622) and a third connection body 644c having one side coupled to the second connection body 644b and the other side coupled to the lift connection body 646. .

In this embodiment, the third connection body 644c is provided to surround the outer wall of the lifting guide bar 645, and the first connection body 644a, the second connection body 644b, and the third connection body 644c are It may have a 'b' shape on a plane.

In this embodiment, a cutout hole 645a is provided in the elevation guide bar 645 to reduce friction between the elevation connection body 646 and the elevation guide bar 645 .

The stopper part 650 may be provided on the base support rail 613 and the first support rail 624 to limit the descending heights of the first shielding body 620 and the second shielding body 630 .

In this embodiment, the stopper portion 650 includes a stopper plate 651 and a plurality of stopper balls 652 provided to protrude inside and outside the wall portion of the stopper plate 651 .

In this embodiment, the plurality of stopper balls 652 contact the first lift rail 623 or the second lift rail 633 to limit the lowering heights of the first shielding body 620 and the second shielding body 630 can do.

Hereinafter, the operation of the shield drive unit 640 will be briefly described.

When the cylinder rod 642 of the shielding drive unit 640 descends, the connection unit 644 and the elevating guide bar 645 connected to the connection unit 644 descend. At this time, since the lower lifting bar 647 is coupled to the lower part of the lifting guide bar 645, the lower lifting bar 647 is also lowered together.

As a result, the first shielding body 620 and the second shielding body 630 also descend together, the first shielding body 620 descends while being supported by the base support rail 613, and the second shielding body 630 It may be supported by the first support rail 624 and descended.

The present invention described above is not limited by the above-described embodiments and the accompanying drawings, and it is common in the art that various substitutions, modifications, and changes can be made within the scope of the technical spirit of the present invention. It will be clear to those who have knowledge of

100: ground measuring device 210: image DB 220: image search module
230: image output module 240: point selection module 250: image search module
260: image correction module 270: image update module 300: base
310: shooting support 320: camera unit 400: lifting and rotating unit
410: lifting and rotating body 411: vertical frame 412: horizontal frame
413: lifting guide rack 420: motor frame 430: left and right moving motor
440: left and right moving frame 450: rotation motor 460: holder frame
470: up and down motor 500: movement assist device 510: first driving unit
511: moving body 512: horizontal movement control unit 512a: first rail
512b: first block 512c: moving plate 512d: lifting support plate
513: lift control unit 513a: second rail 513b: second block
520: connection unit 521: coupling plate 522: connection base body
522a: hole member 523: ball member 524: coupling body
525: rotation guide body 525a: support protrusion 526: support sheet
530: second driving unit 531: frame body 600: shielding unit
601: base body 602: protruding support body 603: guide cutting hole
610: base shield body 611: base bending plate 612: base support plate
613: base support rail 614: base guide body 620: first shield body
621: first bending plate 622: first support plate 623: first lifting rail
624: first support rail 630: second shielding body 631: second bending plate
632: bending piece 633: second lift rail 640: shield drive unit
641: cylinder body 642: cylinder rod 643: cylinder bracket
644: connection unit 644a: first connection body 644b: second connection body
644c: third connection body 645: lifting guide bar 645a: cutting hole
646: lifting connection body 647: lower lifting bar 648: lower stopper
650: stopper part 651: stopper plate 652: stopper ball

Claims (1)

an image DB that stores photographed image data to which GNSS coordinates are applied, photographed altitude information, and height information of ground objects;
An image search module for searching data and information of an image DB;
an image output module outputting the captured image data searched by the image search module through a touch screen having an input function;
Check the coordinate values of a pair of initial points and a pair of end points specified in the captured image output to the image output module, set a reference straight line connecting the coordinate values, and set the range enclosed by the initial and end points to the range of the road image Branch selection module to be confirmed as;
an image search module for searching for a modified terrestrial object image according to preset search criteria;
The center distance between the reference ground object and the modified ground object, the shooting altitude and the height of the modified ground object are checked to calculate the camera's shooting angle, and the corrected plane part is checked by checking the plane part width of the modified ground object image and the camera's shooting angle. an image correction module that calculates a width, separates a plane portion image of the modified terrestrial object image before correction, adjusts its size according to the corrected plane portion width, and removes a side image of the modified terrestrial object image; and
Image search module for other captured images including the real image of the shaded area in the image DB by synthesizing the corrected flat part with the captured image from which the side image has been removed, and checking the GNSS coordinates of the shaded area formed by removing the side image of the modified terrestrial image. an image update module that searches through , matches the size and resolution of real images of other aerial images, synthesizes them into shaded parts, and updates the captured image data of the image DB; Including,
a ground measuring device installed on the ground surface adjacent to the reference ground object to photograph the ground object and calculate the center distance between the reference ground object and the modified ground object and height information of the modified ground object; Including more,
The ground measuring device,
foundation installed on the ground; A shooting support that is spaced apart from the top of the foundation; A lifting and rotating unit coupled to the upper part of the base and connected to the side of the shooting support to lift and rotate the shooting support; A movement assisting device coupled to an upper portion of the lifting and rotating unit; A shield coupled to an upper portion of the mobility aid; and a camera unit accommodated inside the shielding unit. including,
The lifting and rotating part,
Lifting and rotating main body coupled to the upper surface of the foundation; A motor frame provided on the lifting and rotating body; Left and right movement motor provided on the motor frame; A left and right moving frame provided to move in the motor frame and connected to the left and right moving motor to move in the direction of the photographing support; A rotating part rotation motor provided on the left and right moving frame and moved together with the left and right moving frame; A holder frame that is connected to the rotation motor of the rotating part, moves closer or farther in the direction of the shooting support, and is coupled to the side of the shooting support; And a vertical lifting motor provided on the motor frame and gear-coupled with the lifting guide rack provided on the lifting rotating body to lift the motor frame. including,
The movement aid is
a first driving unit provided on an upper portion of the lifting and rotating unit to drive the camera unit in the front-back and height directions; a connection unit provided in the first driving unit and moved in the forward and backward directions and in the height direction; And a second driving unit having one side coupled to the connection unit and having a camera unit mounted thereon; Including, the connection unit is coupled to the rotation and angle adjustment to the second driving unit,
The first driving unit,
A moving body coupled to an upper portion of the lifting and rotating unit; a horizontal movement control unit provided to move in the longitudinal direction of the moving body; And it is provided to be lifted to the horizontal movement control unit and the elevation control unit to which the connection unit is coupled; including,
The horizontal movement control unit,
A pair of first rails spaced apart from the upper surface of the movable body; a pair of first blocks having lower portions movably coupled to a pair of first rails; a moving plate coupled to the upper surface of the pair of first blocks and moved together with the pair of first blocks; And a lifting support plate vertically coupled to the moving plate; including,
The elevation control unit,
A pair of second rails coupled to the elevating support plate at a distance; and a pair of second blocks each coupled to a pair of second rails so as to be liftable. Including,
the shield,
a base body having an open area coupled to an upper portion of the movement assist device; a base shielding body provided on top of the base body and covering an open area of the base body; A first shielding body provided to be elevated on the base shielding body and covering the open area of the lower part of the base shielding body; a second shielding body provided to be elevated on the first shielding body and covering an open area under the first shielding body; And one side is coupled to the base shielding body and the other side is coupled to the second shielding body to elevate the first shielding body and the second shielding body shield drive unit; including,
The shielding drive unit,
A cylinder body provided on top of the base shielding body; A cylinder rod whose one side is connected to the cylinder body and is stretchable; Cylinder bracket coupled to the end of the cylinder rod; A connection unit that has one side coupled to the cylinder bracket and moves up and down like a cylinder rod; An elevation guide bar having one end coupled to the base shield body and the other end coupled to the first support plate of the first shield body through the base support plate coupled to the base shield body; An elevation connection body disposed inside the elevation guide bar to connect the connection unit and the elevation guide bar to elevate the connection unit and the elevation guide bar together; a lower lifting bar, one side of which is coupled to the lifting guide bar and the other side is coupled to the second shielding body to be moved up and down like the lifting guide bar; and a lower stopper provided on the lower lifting bar to limit the height of the lower lifting bar. A precision digital map production system through the synthesis of spatial information and coordinate information comprising a.

Images