KR102605301B1 - Digital map making system using 3-dimensional data - Google Patents

Abstract

The digital map production system using 3D data of the present invention receives coordinate signals from a reference point application device placed on top of an underground facility, a GNSS device installed on an aircraft, a camera for photographing terrain, and three or more of the reference point application devices. A filming location including a receiving receiver, the GNSS device, and a controller that controls the operation of the camera and the receiver; and a video image DB that stores video images collected by the photographing device, a drawing image DB that stores drawing images drawn based on the video images, an image editing module that synthesizes and edits multiple video images, video images or drawings. It is characterized by comprising a digital map maker including a coordinate synthesis module for synthesizing GNSS coordinates to an image and a video drawing module for creating a drawing image based on a video image.

Description

Digital map making system using 3-dimensional data}

The present invention relates to a digital map production system, and more specifically, when producing a digital map using underground facilities as a reference point, the role of the reference point is stably performed, and at the same time, if there is a change in the reference point, it is detected and corrected and updated. By doing so, the 3D location information of the digital map can be displayed more accurately, and when not in use, it is stably protected by preventing external exposure, and the production of a digital map using 3D data that improves durability and extends lifespan. It's about the system.

In general, digital maps that record 3D location information are created from images collected through aerial photography and ground photography, and the images collected for the production of digital maps are created as a complete image through interconnection between neighboring images. It is formed and completed as a numerical map.

Here, in order to interconnect the images collected for the production of digital maps, a standard for accurate connection between the images is needed. In order to accurately set the standard, it is necessary to capture accurate aerial video images and ground video images according to GNSS coordinates. This must come first. In other words, aerial photography and ground photography must be accurately performed for each GNSS coordinate to collect accurate aerial video images and ground video images for each GNSS coordinate.

And for this, a reference point is required to serve as a standard for filming, and a device that can display this reference point externally is also required.

In the past, various devices have been proposed that allow a camera to recognize the location of a point by receiving a signal or light. However, most conventional devices were based on technology that allowed cameras to accurately receive and photograph self-irradiating light, and in particular, there was no function to protect from external contamination and self-manage, so there was a problem with the device's lifespan being short. And this problem was a problem that needed to be solved urgently, as it was the reason why the device could not fully fulfill its role as a reference point.

In addition, when producing a digital map using an underground facility as a reference point, a reference point display device is installed at the location of the underground facility to display the fixed coordinate value of the underground facility.

However, when the location of an underground facility changes due to an earthquake or ground subsidence or weakening, there is a problem in that the coordinate values displayed by the reference point display device installed on the ground do not match the coordinate values of the actual underground facility.

The technical configuration described above is background technology to aid understanding of the present invention, and does not mean that it is a conventional technology widely known in the technical field to which the present invention pertains.

Therefore, the technical task to be achieved by the present invention is to stably perform the role of a reference point when producing a digital map using underground facilities as a reference point, and at the same time detect any change in the reference point and allow it to be corrected and updated, thereby creating a three-dimensional digital map. It provides a digital map production system using 3D data that allows location information to be displayed more accurately, protects the system stably by preventing external exposure when not in use, and improves durability to extend lifespan.

According to one aspect of the present invention, a reference point application device disposed on the upper part of an underground facility; A GNSS device installed on an aircraft, a camera for photographing terrain features, a receiver that receives coordinate signals from three or more reference point application devices, controls the operation of the GNSS device, the camera, and the receiver, and coordinates from the reference point application device. Track the relative position of the aircraft using a triangulation method according to the signal reception strength, calculate the absolute position of the aircraft through the GNSS coordinate values included in each coordinate signal, and compare the absolute position with the GNSS position signal of the GNSS device. A filming device including a controller that checks the video image while designating the filming area as a re-filming area when a difference exceeds a standard value occurs; and a video image DB that stores video images collected by the photographing device, a drawing image DB that stores drawing images drawn based on the video images, an image editing module that synthesizes and edits multiple video images, video images or drawings. A digital map maker including a coordinate synthesis module for synthesizing GNSS coordinates to an image and a video drawing module for creating a drawing image based on a video image, wherein the reference point application device includes a base body disposed on the upper part of the underground facility. ; A screw driving unit provided inside the base body; A lifting device connected to the screw drive unit and raised and lowered; a first transmitting unit provided in the lifting device and configured to transmit a coordinate signal including GNSS coordinate values of a location that is lifted and installed outside of the base body; a second transmitter that transmits a movement signal when the location of the underground facility moves and the coordinates of the base body do not match the actual coordinates of the underground facility; an opening/closing drive unit provided on the base body and guiding the first transmission unit to be exposed to the outside of the base body when the first transmission unit rises; An illuminance sensor provided on the base body; A control unit that controls the first transmitter to transmit coordinate signals during the day according to the illuminance signal from the illuminance sensor and receives and transmits GNSS coordinates of the point where the base body is installed; and a connector having one end fixed to the bottom of the lower plate of the base body and the other end fixed to the upper surface of the underground facility, an optical sensor fixed to the lower plate inside the top of the connector, and the inside of the lower end of the connector. It includes a position detection unit provided with a reflector fixed to the underground facility to detect the position of the underground facility, and the screw drive unit includes a drive housing coupled to a support block provided inside the base body; a drive motor provided inside the drive housing; a first bevel gear whose one side is connected to the drive motor and whose other side is rotatably coupled to the drive housing; a second bevel gear whose one side is engaged with the first bevel gear and whose other side is rotatably coupled to the drive housing; One side is gear-engaged with the first bevel gear and the other side is rotatably coupled to the drive housing and includes a third bevel gear disposed on the same line as the second bevel gear, and the lifting device includes the first bevel gear. A first lifting unit connected to a gear to be lifted and lowered, and to which the first transmitter of the first transmitting unit is coupled; a second lifting unit connected to the second bevel gear to be lifted and lowered, and to which a second transmitter of the first transmitting unit is coupled; And a third lifting part that is connected to the third bevel gear to be lifted and lowered and to which the third transmitter of the first transmitting unit is coupled, wherein the first lifting part is coupled to the first bevel gear through the driving housing and said 1 A first screw that rotates like a bevel gear; a first lifting support having one side coupled to the first screw and being lifted and lowered in the height direction of the first screw by rotation of the first screw; A first lifting post provided on the first lifting support and being raised and lowered together with the first lifting support and to which the first transmitter is coupled; and a first guide provided in the driving housing to guide the raising and lowering of the first lifting support, wherein the second lifting part is coupled to the second bevel gear through the driving housing and rotates like the second bevel gear. a second screw; a second lifting support having one side coupled to the second screw and being lifted and lowered in the height direction of the second screw by rotation of the second screw; a second lifting post provided on the second lifting pedestal, raised and lowered together with the second lifting pedestal, and to which the second transmitter is coupled; and a second guide provided in the driving housing to guide the lifting and lowering of the second lifting support, and the third lifting part is coupled to the third bevel gear through the driving housing and rotates like the third bevel gear. a third screw; a third lifting support having one side coupled to the third screw and being lifted and lowered in the height direction of the third screw by rotation of the third screw; A third lifting post provided on the third lifting support and being raised and lowered together with the third lifting support and to which the third transmitter is coupled; and a third guide provided in the driving housing to guide the raising and lowering of the third lifting support, wherein the opening and closing driving unit is provided on the outer wall of the base body, so that when the first transmitting unit rises, the first transmitting unit is connected to the base body. a first driving unit moved to be exposed to the outside of; and a second driving unit provided on the outer wall of the base body and moving in a direction opposite to the first driving unit so that the first transmitting unit is exposed to the outside of the base body when the first transmitting unit rises, and the control unit is operated during the day. The lifting device is driven to raise the first transmitting unit to the outside of the base body, and the first driving unit and the second driving unit are operated to open the sealed area of the base body, and the lifting device is driven at night. A digital map production system using three-dimensional data can be provided that lowers the first transmitting unit into the interior of the base body and operates the first driving unit and the second driving unit to cover the open area of the base body. there is.

The first driving unit may include a first cover covering a portion of the open area of the base body; a first driving cylinder provided on the base body to move the first cover; a first cover, one side of which is coupled to the first cover and the other side of which is supported on the first driving cylinder and moved together with the first cover; a first roller, one side of which is rotatably coupled to the bottom of the first cover and the other side of which is rotatably supported on the upper surface of the first driving cylinder; and a first stopper provided on the first driving cylinder to stop the first roller, wherein the second driving unit includes: a second cover covering the remaining area of the open area of the base body; a second driving cylinder provided on the base body to move the second cover; a second cover, one side of which is coupled to the second cover and the other side of which is supported by the second driving cylinder and moved together with the second cover; a second roller, one side of which is rotatably coupled to the bottom of the second cover and the other side of which is rotatably supported on the upper surface of the second driving cylinder; and a second stopper provided on the second driving cylinder to stop the second roller, wherein the base body includes a first hole through which the first transmitter passes, a second hole through which the second transmitter passes, and A third hole through which a third transmitter passes is provided, and the opening/closing driver includes the base body in the area where the first hole is provided, the base body in the area where the second hole is provided, and the base body where the third hole is provided. Each can be provided.

Embodiments of the present invention stably perform the role of a reference point when producing a digital map using underground facilities as a reference point, and at the same time detect any change in the reference point and allow it to be corrected and updated, thereby providing 3D location information of the digital map. It allows for more accurate display, and when not in use, it prevents exposure to the outside, providing stable protection, and improving durability to extend lifespan.

Figure 1 is a block diagram illustrating a digital map production system with improved accuracy using 3D data according to an embodiment of the present invention.
Figure 2 is a diagram schematically showing the reference point application device and underground facilities shown in Figure 1.
FIG. 3 is a diagram schematically showing the main configuration of an opening/closing driver provided on the base body of the upper region of the first transmitter shown in FIG. 2.
FIG. 4 is an operational diagram of the opening/closing driving unit shown in FIG. 2.

In order to fully understand the present invention, its operational advantages, and the objectives achieved by practicing the present invention, reference should be made to the accompanying drawings illustrating preferred embodiments of the present invention and the contents described in the accompanying drawings.

Hereinafter, the present invention will be described in detail by explaining preferred embodiments of the present invention with reference to the attached drawings. The same reference numerals in each drawing indicate the same member.

Figure 1 is a block diagram illustrating a digital map production system with improved accuracy using 3D data according to an embodiment of the present invention, and Figure 2 schematically shows the reference point application device and underground facilities shown in Figure 1. It is a drawing, and FIG. 3 is a diagram schematically showing the main configuration of the opening and closing drive unit provided in the base body of the upper region of the first transmitter shown in FIG. 2, and FIG. 4 is an operating diagram of the opening and closing drive unit shown in FIG. 2. .

As shown in these drawings, the digital map production system with improved accuracy using 3D data according to this embodiment includes a reference point application device (A) disposed on the upper part of the underground facility 1000; A GNSS (Global Navigation Satellite System) device installed on an aircraft (11), a camera (12) for photographing terrain features, a receiver (13) for receiving coordinate signals from three or more reference point application devices (A), and the GNSS device. (11), controls the operation of the camera 12, and the receiver 13, and tracks the relative position of the aircraft using a triangulation method according to the reception strength of the coordinate signal from the reference point application device (A), and The absolute position of the aircraft is calculated using the included GNSS coordinate values, and the absolute position is compared with the GNSS position signal of the GNSS device 11. If a difference exceeds a standard value occurs, the shooting area is designated as a re-filming area and the image is recorded. A photographing device (10) including a controller (14) that checks images; A video image DB (21) for storing video images collected by the photographing device (10), a drawing image DB (22) for storing drawing images drawn based on the video images, and a drawing image DB (22) for compositing and editing multiple video images. It is equipped with a digital map maker (20) including an image editing module (23), a coordinate synthesis module (24) that synthesizes GNSS coordinates to a video image or a drawing image, and a video drawing module that creates a drawing image based on the video image. do.

The reference point application device (A) includes a base body 100 disposed on the upper part of the underground facility 1000, a screw drive unit 200 provided inside the base body 100, and the screw drive unit 200. A lifting device 300 that is connected to and raised and lowered, and a first transmitting unit 400 provided in the lifting device 300 and transmitting a coordinate signal including the GNSS coordinate value of the installed position by being lifted and lowered outside the base body 100. ) and a second transmitter that transmits a movement signal when the position of the underground facility 1000 moves and the coordinates of the base body 100 and the actual coordinates of the underground facility 1000 do not match, and the base body An opening/closing driver 600 provided at 100 to guide the first transmission unit 400 to be exposed to the outside of the base body 100 when the first transmission unit 400 rises, and An illumination sensor provided, and a control unit 800 that controls the first transmitter to transmit a coordinate signal during the day according to the illumination signal of the illumination sensor and receives and transmits the GNSS coordinate value of the point where the base body 100 is installed. One end is fixed to the bottom of the lower plate of the base body 100 and the other end is fixed to the upper surface of the underground facility 1000. A position detection unit equipped with a fixed optical sensor 920 and a reflector 930 fixed to the underground facility 1000 inside the lower end of the connection pipe 910 to detect the position of the underground facility 1000. Includes (900).

As shown in FIG. 2, the base body 100 is disposed on the upper part of the underground facility 1000, and a screw drive unit 200 and a lifting device 300 are provided inside it, and a first transmitting unit 400 is installed outside the base body 100. ), a second transmitter 500, an illumination sensor 700, a control unit 800, and a position detection unit 900 may be provided.

In this embodiment, as shown in FIG. 2, a first hole 110 is provided at the top of the base body 100 to serve as an elevating passage for the first transmitter 410, and a second hole is provided on the left wall. 120 may be provided to serve as a lifting passage for the second transmitter 420, and a third hole 130 may be provided on the right wall to serve as a lifting passage for the third transmitter 430.

Additionally, in this embodiment, a support block 140 is provided on the inner bottom of the base body 100, as shown in FIG. 2, to support the drive housing 210 of the screw drive unit 200.

The screw driver 200 can elevate and lower the lifting device 300 to elevate the first transmitting unit 400 provided in the lifting device 300 to the outside of the base body 100.

In this embodiment, the screw drive unit 200 includes a drive housing 210 coupled to the upper part of the support block 140, and a drive motor 220 provided inside the drive housing 210, as shown in FIG. 2. ) and, one side is connected to the drive motor 220 and the other side is rotatably coupled to the drive housing 210, a first bevel gear 230, and one side is gear-engaged with the first bevel gear 230 and the other side is a second bevel gear 240 rotatably coupled to the drive housing 210, one side is gear-engaged with the first bevel gear 230, the other side is rotatably coupled to the drive housing 210, and the second bevel gear It includes a third bevel gear 250 disposed on the same line as 240.

In this embodiment, the first bevel gear 230, the second bevel gear 240, and the third bevel gear 250 may be arranged to be engaged with each other at an angle of 90 degrees, and the first bevel gear connected to the drive motor 220 When 230 is rotated, the second bevel gear 240 and the third bevel gear 250 may also be rotated.

Additionally, in this embodiment, the first bevel gear 230, the second bevel gear 240, and the third bevel gear 250 are supported on the drive housing 210 to be rotated by a bearing member provided on the drive housing 210. You can.

As shown in FIG. 4, the lifting device 300 is connected to the screw drive unit 200 and is raised and lowered to raise the first transmitting unit 400 to the outside of the base body 100 or to lift the first transmitting unit 400 to the outside of the base body 100. It can be lowered into the interior of the base body 100.

In this embodiment, the lifting device 300 is connected to the first bevel gear 230 to lift and lower, as shown in FIG. 2, and the first lifting device 410 of the first transmitting unit 400 is coupled. A second lifting unit 320 that is connected to the unit 310 and the second bevel gear 240 to be lifted and connected to the second transmitter 420 of the first transmitting unit 400, and a third bevel gear 250 It is connected to and is raised and lowered and includes a third lifting unit 330 to which the third transmitter 430 of the first transmitting unit 400 is coupled.

In this embodiment, the first lifting unit 310 includes a first screw 311 that is coupled to the first bevel gear 230 through the driving housing 210 and rotates like the first bevel gear 230, and a first screw 311 that rotates with the first bevel gear 230. 1 A first lifting support 312, one side of which is coupled to the screw 311 and raised and lowered in the height direction of the first screw 311 by rotation of the first screw 311, is provided on the first lifting support 312. A first lifting post 313 that is raised and lowered together with the first lifting stand 312 and to which the first transmitter 410 is coupled, and a first lifting post 313 provided in the drive housing 210 to guide the raising and lowering of the first lifting stand 312. Includes guide 314.

In this embodiment, the second lifting unit 320 includes a second screw 321 that is coupled to the second bevel gear 240 through the driving housing 210 and rotates like the second bevel gear 240, and a second screw 321 that rotates with the second bevel gear 240. 2 A second lifting support 322, one side of which is coupled to the screw 321 and raised and lowered in the height direction of the second screw 321 by rotation of the second screw 321, is provided on the second lifting support 322. A second lifting post 323 that is raised and lowered together with the second lifting stand 322 and to which the second transmitter 420 is coupled, and a second lifting post 323 provided in the drive housing 210 to guide the raising and lowering of the second lifting stand 322. Includes guide 324.

In this embodiment, the third lifting unit 330 includes a third screw 331 that is coupled to the third bevel gear 250 through the drive housing 210 and rotates with the third bevel gear 250, and a third screw 331 that rotates with the third bevel gear 250. 3 A third lifting support 332, one side of which is coupled to the screw 331 and raised and lowered in the height direction of the third screw 331 by rotation of the third screw 331, is provided on the third lifting support 332. A third lifting post 333 that is raised and lowered together with the third lifting stand 332 and to which the third transmitter 430 is coupled, and a third lifting post 333 provided in the drive housing 210 to guide the raising and lowering of the third lifting stand 332. Includes guide 334.

In this embodiment, when the first bevel gear 230 is rotated clockwise with respect to FIG. 2, the first screw 311 is also rotated clockwise to form a first lifting support ( 312) can be raised. At this time, the second bevel gear 240 can also be rotated clockwise to raise the second lifting support 322 screwed to the second screw 321, and the third bevel gear 250 can also be rotated clockwise. The third lifting support 332 screwed to the third screw 331 can be raised.

As shown in FIG. 2, the first transmitter 400 includes a first transmitter 410 coupled to the upper end of the first lifting post 313, and a second transmitter coupled to the upper end of the second lifting post 323. It includes a transmitter 420 and a third transmitter 430 coupled to the upper end of the third lifting post 333.

In this embodiment, the first transmitter 400 is controlled by the control unit 800 to wirelessly transmit a coordinate signal indicating the position of the reference point application device A at a constant intensity. For reference, the coordinate signal may include the GNSS coordinate value where the reference point application device (A) is located and an identification code for identification of the reference point application device (A), and the coordinate signal including the GNSS coordinate value and identification code is a typical A/ It is transmitted wirelessly through D conversion, etc., so that the imaging device 10 installed on an aircraft or vehicle passing in an adjacent area can receive and process it.

As shown in FIG. 2, the second transmitter 500 is provided on the base body 100 to receive and transmit a movement signal from the control unit 800, and includes the identification code of the reference point application device (A) along with the movement signal. transmit simultaneously. Therefore, the manager can know which reference point application device (A) has a problem and can quickly take action.

As shown in FIG. 2, the opening and closing driving unit 600 is provided on the base body 100 in the area where the first hole 110, the second hole 120, and the third hole 130 are provided, respectively, and is provided in the first hole 100. When the transmitter 400 rises, it opens to expose the first transmitter 400 to the outside of the base body 100, as shown in FIG. 4, and when the first transmitter 400 descends, as shown in FIG. 2. As shown, it is closed to prevent foreign substances, etc. from entering the interior of the base body 100.

In this embodiment, the opening/closing driving unit 600 is provided on the outer wall of the base body 100, as shown in FIG. 2, so that when the first transmitting unit 400 rises, the first transmitting unit 400 moves from the base body 100. A first driving unit 610 is moved to be exposed to the outside, and is provided on the outer wall of the base body 100 so that when the first transmitting unit 400 rises, the first transmitting unit 400 is exposed to the outside of the base body 100. 1 A second driving unit 620 that moves in the opposite direction to the driving unit 610, and a plurality of guide rails provided on the outer wall of the base body 100 to guide the movement of the first driving unit 610 and the second driving unit 620 Includes (630).

As shown in FIG. 2, the first driving unit 610 of the opening and closing driving unit 600 includes a first cover 611 that covers a portion of the open area of the base body 100, and a base body 100. A first driving cylinder 612 is provided and connected to the first cover 611 and the first rod 612a to move the first cover 611, and one side is coupled to the first cover 611 and the other side is A first cover 613 is supported on the first driving cylinder 612 and moves together with the first cover 611, one side is rotatably coupled to the bottom of the first cover 613, and the other side is connected to the first driving cylinder 612. It includes a first roller 614 rotatably supported on the upper surface of the cylinder 612, and a first stopper 615 provided on the first driving cylinder 612 to stop the first roller 614.

The second driving unit 620 of the opening and closing driving unit 600 includes a second cover 621 that covers the remaining open area of the base body 100, and a second cover 621 provided on the base body 100. A second driving cylinder 622 is connected to the second rod 622a to move the second cover 621, and one side is coupled to the second cover 621 and the other side is supported by the second driving cylinder 622. The second cover 623 moves together with the second cover 621, and one side is rotatably coupled to the bottom surface of the second cover 623, and the other side is rotatably coupled to the upper surface of the second driving cylinder 622. It includes a second roller 624 that is supported and a second stopper 625 provided on the second driving cylinder 622 to stop the second roller 624.

As shown in FIG. 3, the guide rail 630 of the opening and closing drive unit 600 is provided on the base body 100 and moves the first cover 611 and the second cover 621 when the first cover 611 and the second cover 621 are moved. ) and the lower part of the second cover 621 can be supported in a sliding manner.

As shown in FIG. 2, the illuminance sensor 700 is provided on the outer wall of the base body 100 and is controlled by the control unit 800 to detect the illuminance of the external environment and output an illuminance signal.

As shown in FIG. 2, the control unit 800 is provided on the base body 100 and includes a screw drive unit 200, a lifting device 300, a first transmitting unit 400, a second transmitting unit 500, and an opening/closing drive unit ( 600), the illuminance sensor 700, and the position detection unit can be controlled.

In this embodiment, the control unit 800 allows the GNSS coordinate value of the point where the base body 100 is installed to be input and transmitted as the coordinate signal.

In addition, in this embodiment, the control unit 800 receives an illuminance signal from an illuminance sensor to operate the electrical components during the day and stops the electrical components at night, and transmits a coordinate signal indicating the location through the first transmitter 400. transmits, receives the above-described movement signal output from the optical sensor 920, and transmits it to the second transmitter 500 along with the identification code of the corresponding base body 100. The control unit 800 can control the input device (i) and the display device (ds).

Furthermore, the control unit 800 drives the lifting device 300 during the day to raise the first transmitting unit 400 to the outside of the base body 100 and operates the first driving unit 610 and the second driving unit 620. The sealed area of the base body 100 is opened, and at night, the lifting device 300 is driven to lower the first transmitting unit 400 into the base body 100, and the first driving unit 610 and the first transmitting unit 400 are lowered into the base body 100. 2 The open area of the base body 100 can be covered by operating the driving unit 620. In this embodiment, the closed area means the space covered by the first cover 611 and the second cover 621, and the open area means the area of the first hole 110 and the area of the second hole 120. Area, may refer to the area of the third hole 130.

And in this embodiment, the control unit 800 can control the first transmitter 400 to be raised or lowered together.

The imaging device 10 receives coordinate signals from the GNSS device 11 installed on an aircraft for aerial photography, the camera 12 installed on the aircraft to photograph terrain features, and the transmitter 700 of the reference point application device (A). It includes a receiver 13 that is installed on the aircraft and a controller 14 that operates and controls the GNSS device 11, camera 12, and receiver 13.

In this embodiment, the GNSS device 11, camera 12, receiver 13, and aircraft are common ones used in aerial photography, and detailed description thereof will be omitted.

The controller 14 controls the operation of the GNSS device 11, the camera 12, and the receiver 13, and receives the GNSS position signal from the GNSS device 11 and the coordinates of the reference point application device (A) from the receiver 13. By comparing the signals, if the GNSS position signal has an error greater than the standard and the coordinate signal of the reference point application device (A), the shooting area is designated as a reshooting area.

To explain this in more detail, an aircraft that checks its current location in real time through the GNSS device 11 additionally receives coordinate signals from at least three reference point application devices (A). At this time, the three reference point application devices (A) each transmit coordinate signals of the same intensity, but due to the difference in distance from the aircraft, the intensity of the coordinate signal finally received by the imaging device 10 is different for each reference point application device (A). do. Ultimately, the controller 14 is able to track the relative position of the aircraft compared to the positions of the three reference point application devices (A) through coordinate signals received at different strengths, and is further included in the coordinate signal of the reference point application device (A). Through the GNSS coordinate values, the GNSS coordinate value for the absolute position of the aircraft can be calculated. Of course, if there is a difference by comparing the GNSS coordinate value confirmed in this way with the location confirmed by the GNSS device 11, the shooting area is designated as a reshooting area, and the captured video image is checked separately to make it clear that it is subject to correction.

For reference, the controller 14 stores the transmission intensity of the coordinate signal transmitted from the reference point application device (A), checks the intensity of the received coordinate signal based on this, and tracks the distance of the reference point application device (A). can do. Therefore, as mentioned above, the controller 14, which has received at least three coordinate signals, can track and confirm the position of the aircraft relative to the position of the reference point application device (A) through a known and common triangulation method.

The digital map maker 20 includes a video image DB 21 that stores video images collected by the photographing device 10, a drawing image DB 22 that stores drawing images drawn based on the video images, and a plurality of video images. An image editing module (23) for synthesizing and editing, a coordinate synthesis module (24) for synthesizing GNSS coordinates to a video image or drawing image, a video drawing module (25) for creating a drawing image based on a video image, a video image and It includes an input/output module 26 that outputs a drawing image and generates and inputs an input signal for operation of the digital map maker 20. In addition, the digital map maker 20 links specific geographic and spatial information based on GIS (Geographic Information System) to the drawing image to create a digital map in which related information can be output when the user clicks on the corresponding information on the digital map. It may also include an information link module 27 to be manufactured.

The image editing module 23 connects and edits a plurality of video images collected by the photographing device 10 to complete a single video image. Adjustment processing such as size and resolution is performed to connect different video images. do. And this image editing module 23 can be applied to general graphic editing applications, and known and public programs can be applied to output and edit 3D video images. Meanwhile, as mentioned earlier, video images that require reshooting are processed so that they can be replaced at any time during editing, so when a new video image is input through reshooting, the video image at the corresponding location is replaced and updated, and the drawing image is created based on this. , so that its accuracy can be guaranteed.

The coordinate synthesis module 24 synthesizes GNSS coordinates, which are 3D location information, to a video image or drawing image. It usually synthesizes coordinates, which are 3D location information, based on a reference point displayed on the video image or drawing image. The reference point is displayed in the process of creating a video image or drawing image, and the display method may include a natural display method through photography or an artificial display method through drawing.

The video drawing module 25 creates a drawing image that becomes the background of a numerical map by performing drawing work based on a video image. A drawing machine that draws directly on paper may be applied, but it is generally used to produce an online numerical map. An application that records on a computer could also be applied. Since the application-type video drawing module based on video images is a known and common technology widely used in the field of digital map production, its description is omitted here.

The information link module 27 links various information recorded in the GIS system to the relevant point of the drawing image, so that when the user clicks on the relevant point, the linked related information is output. To this end, the operator In the process of creating a drawing image, an object that will be linked to specific information in the GIS system is displayed as an object image on the drawing image.

The numerical map completed in this way is output through the input/output module 26.

As such, the present invention is not limited to the described embodiments, and it is obvious to those skilled in the art that various modifications and changes can be made without departing from the spirit and scope of the present invention. Accordingly, such modifications or variations should be considered to fall within the scope of the claims of the present invention.

A: Reference point application device 10: Photographing device
11: GNSS device 12: Camera
13: Receiver 14: Controller
20: Digital map maker 21: Video image DB
24: Coordinate synthesis module 25: Image drawing module
100: base body 110: first hole
120: 2nd hole 130: 3rd hole
140: support block 200: screw driving unit
210: drive housing 220: drive motor
230: 1st bevel gear 240: 2nd bevel gear
250: Third bevel gear 300: Elevating device
310: first lifting unit 311: first screw
312: first lifting support 313: first lifting post
314: first guide 320: second lifting unit
321: second screw 322: second lifting support
323: 2nd lifting post 324: 2nd guide
330: Third lifting unit 331: Third screw
332: Third lifting support 333: Third lifting post
334: Third guide 400: First transmitting unit
410: first transmitter 420: second transmitter
430: third transmitter 500: second transmitter
600: opening/closing driving unit 610: first driving unit
611: first cover 612: first driving cylinder
612a: first rod 613: first cover
614: first roller 615: first stopper
620: second driving unit 621: second cover
622: second driving cylinder 622a: second rod
623: second cover 624: second roller
625: second stopper 630: guide rail
700: Light sensor 800: Control unit
900: Position detection unit 910: Connector
920: Optical sensor 930: Reflector
1000: Underground facility i: Input device
ds: display device

Claims (1)

A reference point application device placed on top of an underground facility;
A GNSS device installed on an aircraft, a camera for photographing terrain features, a receiver that receives coordinate signals from three or more reference point application devices, controls the operation of the GNSS device, the camera, and the receiver, and coordinates from the reference point application device. Track the relative position of the aircraft using a triangulation method according to the signal reception strength, calculate the absolute position of the aircraft through the GNSS coordinate values included in each coordinate signal, and compare the absolute position with the GNSS position signal of the GNSS device. A filming device including a controller that checks the video image while designating the filming area as a re-filming area when a difference exceeds a standard value occurs; and
A video image DB that stores video images collected by the photographing device, a drawing image DB that stores drawing images drawn based on the video images, an image editing module that synthesizes and edits multiple video images, and a video image or drawing image. It includes a digital map maker including a coordinate synthesis module for synthesizing GNSS coordinates and a video drawing module for creating a drawing image based on a video image,
The reference point application device is,
A base body disposed on top of the underground facility;
A screw driving unit provided inside the base body;
A lifting device connected to the screw drive unit and raised and lowered;
a first transmitting unit provided in the lifting device and configured to transmit a coordinate signal including GNSS coordinate values of a location that is lifted and installed outside of the base body;
a second transmitter that transmits a movement signal when the location of the underground facility moves and the coordinates of the base body do not match the actual coordinates of the underground facility;
an opening/closing drive unit provided on the base body and guiding the first transmission unit to be exposed to the outside of the base body when the first transmission unit rises;
An illuminance sensor provided on the base body;
A control unit that controls the first transmitter to transmit coordinate signals during the day according to the illuminance signal from the illuminance sensor and receives and transmits GNSS coordinates of the point where the base body is installed; and
A connector at one end fixed to the bottom of the lower plate of the base body and the other end fixed to the upper surface of the underground facility, an optical sensor fixed to the lower plate inside the upper end of the connector, and the above inside the lower end of the connector. It is provided with a reflector fixed to the underground facility and includes a position detection unit that detects the position of the underground facility,
The screw drive unit,
a drive housing coupled to a support block provided inside the base body;
a drive motor provided inside the drive housing;
a first bevel gear on one side connected to the drive motor and on the other side rotatably coupled to the drive housing;
a second bevel gear whose one side is engaged with the first bevel gear and whose other side is rotatably coupled to the drive housing;
One side is gear-engaged with the first bevel gear, and the other side is rotatably coupled to the drive housing and includes a third bevel gear disposed on the same line as the second bevel gear,
The lifting device is,
a first lifting unit connected to the first bevel gear to be lifted and lowered, and to which the first transmitter of the first transmitting unit is coupled;
a second lifting unit connected to the second bevel gear to be lifted and lowered, and to which a second transmitter of the first transmitting unit is coupled; and
It is connected to the third bevel gear to be lifted and includes a third lifting unit to which the third transmitter of the first transmitting unit is coupled,
The first lifting unit,
A first screw coupled to the first bevel gear through the driving housing and rotated together with the first bevel gear;
a first lifting support having one side coupled to the first screw and being lifted and lowered in the height direction of the first screw by rotation of the first screw;
A first lifting post provided on the first lifting support and being raised and lowered together with the first lifting support and to which the first transmitter is coupled; and
It includes a first guide provided in the driving housing to guide the raising and lowering of the first lifting support,
The second lifting unit,
a second screw coupled to the second bevel gear through the drive housing and rotating together with the second bevel gear;
a second lifting support having one side coupled to the second screw and being lifted and lowered in the height direction of the second screw by rotation of the second screw;
a second lifting post provided on the second lifting pedestal, raised and lowered together with the second lifting pedestal, and to which the second transmitter is coupled; and
It includes a second guide provided in the driving housing to guide the lifting and lowering of the second lifting support,
The third lifting unit,
A third screw coupled to the third bevel gear through the drive housing and rotated together with the third bevel gear;
a third lifting support having one side coupled to the third screw and being lifted and lowered in the height direction of the third screw by rotation of the third screw;
A third lifting post provided on the third lifting support and being raised and lowered together with the third lifting support and to which the third transmitter is coupled; and
It includes a third guide provided in the driving housing to guide the raising and lowering of the third lifting support,
The opening and closing driving unit,
a first driving unit provided on the outer wall of the base body and moved so that the first transmitting unit is exposed to the outside of the base body when the first transmitting unit rises; and
a second driving unit provided on the outer wall of the base body and moving in a direction opposite to the first driving unit so that the first transmitting unit is exposed to the outside of the base body when the first transmitting unit rises;
The control unit drives the lifting device during the day to raise the first transmitter to the outside of the base body, and operates the first drive unit and the second drive unit to open the sealed area of the base body, and at night. Driving the lifting device to lower the first transmitting unit into the interior of the base body, and operating the first driving unit and the second driving unit to cover the open area of the base body,
The first driving unit,
a first cover covering a portion of the open area of the base body;
a first driving cylinder provided on the base body to move the first cover;
a first cover, one side of which is coupled to the first cover and the other side of which is supported on the first driving cylinder and moved together with the first cover;
a first roller, one side of which is rotatably coupled to the bottom of the first cover and the other side of which is rotatably supported on the upper surface of the first driving cylinder; and
A first stopper provided on the first driving cylinder to stop the first roller,
The second driving unit,
a second cover covering the remaining area of the open area of the base body;
a second driving cylinder provided on the base body to move the second cover;
a second cover, one side of which is coupled to the second cover and the other side of which is supported by the second driving cylinder and moved together with the second cover;
a second roller, one side of which is rotatably coupled to the bottom of the second cover and the other side of which is rotatably supported on the upper surface of the second driving cylinder; and
It includes a second stopper provided on the second driving cylinder to stop the second roller,
The base body is provided with a first hole through which the first transmitter passes, a second hole through which the second transmitter passes, and a third hole through which the third transmitter passes,
The opening/closing driving unit is provided on the base body in the area where the first hole is provided, the base body in the area where the second hole is provided, and the base body where the third hole is provided. Digital mapping system.

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