KR102074465B1 - Method for operating remote movable facial reference point for aerial image correction - Google Patents

Abstract

The present invention relates to a method of operating a remote mobile marking reference point for aerial image correction. More specifically, installation of marking points in a coastal area where tidal phenomenon occurs not only severely limits activity of workers, but also poses a high risk of accidents. Accordingly, in order to overcome limitations in aerial photography, the installation of the marking points and aerial photography in the coastal area are remotely and quickly processed. Therefore, the marking points can be easily moved and installed where desired. In addition, this improves work efficiency, eliminates difficulties in installation and collection, and prevents a risk of mortality events in a process.

Description

Method for operating remote movable facial reference point for aerial image correction}

The present invention relates to a method of operating a remote control facial expression point for aeronautical image correction, and more particularly, the installation of facial expression points in coastal areas where tidal phenomena occur not only severely restricts the activity of workers but also poses a very high risk of safety accidents. It is possible to easily move and install the location of the facial expression point wherever it is desired by remotely handling the facial expression point installation and aerial photographing in the coastal area to overcome the limitations of aerial photography. The present invention relates to a method of operating a remote control facial expression point for improved aerial image correction to improve the efficiency of the system, to eliminate difficulties in installation and collection, and to prevent the risk of human accidents in the process.

Aerial images are images of the ground in the air mounted on unmanned aerial vehicles, manned aircraft, and satellites.

Aerial images used to produce topographic maps, maps, etc. are composed of numerous images, and adjacent images overlap each other in a certain area.

When producing topographic maps, maps, etc. using aerial images, the exact facial expression reference point for processing each image of the aerial image and synthesizing the images should be shown in the image of the aerial image.

For reference, the facial expression reference point is a cover for displaying the exact position in the image of the aerial image, and provides accurate coordinate (latitude, longitude, altitude) information of the point with the facial expression reference point in the image.

When shooting the aerial image of the land, the expression reference point providing device for easy identification on the flat ground of the ground is installed so that the expression reference point appears in the aerial image.

Meanwhile, when producing spatial information through coastal aerial photography, geometric distortion of aerial photographs is removed and the same coordinates as the national coordinate system are registered and used in the image.

Here, in order to register the geometric distortion and coordinates, the reference image is installed on the ground at the time of aerial photography, and the coordinate information of the captured image and the expression reference point is used for image correction.

In the case of the required facial expression point, it is difficult to install facial expression points when the sea level is higher than the terrain due to tidal tide due to the characteristics of the coastal area. It should be recorded together.

Since the working conditions are very vulnerable depending on the topography and tides, the risk of safety accidents is very high, and a faster way to install facial expression points and aerial photography in coastal areas requires a method that can be quickly installed remotely. .

Republic of Korea Patent Registration No. 10-1523017 (2015.05.19) 'Marine facial expression point providing device for aerial video'

The present invention has been created in view of the above-mentioned problems in the prior art, and the installation of facial expression points in coastal areas where tidal phenomenon occurs not only severely restricts the activity of the worker but also greatly risks safety accidents. It is possible to easily move and install the location of the facial expression point wherever it is desired by remotely handling the facial expression point installation and aerial photographing in the coastal area to overcome the limitations of aerial photography. Its main purpose is to provide a remotely controlled facial reference point operation method for improved aerial image correction to improve the efficiency of the system, to eliminate difficulties in installation and collection, and to prevent the risk of human accidents in the process.

The present invention controls the unmanned aerial vehicle 100 to communicate with the GNSS satellite 300 to precisely control the position of the unmanned aerial vehicle 100 to establish a mobile expression reference point at an accurate position as a means for achieving the above object. Setting up a GNSS ground reference station as a means to do so;
If the GNSS ground reference station 200 is installed, remotely moving the unmanned aerial vehicle 100 to specific coordinates of a coastal region required for aerial photography;
When the unmanned aerial vehicle 100 is moved to a specific coordinate and landed at the point where the unmanned aerial vehicle 100 can be landed and fixed, and when it is difficult to land, the movable expression is hovered to maintain a certain altitude so as to maintain no movement. Reference point installation step;
When the movable facial expression reference point installation step is completed, the aerial photographing step of starting the aerial photography while the aircraft 400 is flying;
A calculation step of checking a difference between a national coordinate system and a mobile expression reference point coordinate for image correction of the aerial photographed image after the aerial photographing step;
When the calculation step is completed, moving to another reference point or to end the shooting to move to another reference point or to end the recording; including remotely operated facial expression reference point for the correction of the aerial image,
The unmanned aerial vehicle 100 further includes a landing gear 120 having a lattice frame structure in which a hollow circular frame having an empty hollow is arranged in a grid so that the unmanned aerial vehicle 100 may land on a tidal flat;
The buoyancy body 130 is further fixed to the upper surface of the landing gear 120, the buoyancy body 130 has a cylindrical shape formed of polyethylene resin, four upper and lower slots 132 with a 90 ° interval around The predetermined length is formed in the vertical direction, the slider 140 is inserted into the buoyancy body 130, and four rods 142 penetrating the upper and lower slots 132 on both sides of the outer circumferential surface of the slider 140. The screw is fastened, and the spherical buoy 150 is assembled and fixed to the end of the rod 142, the fixing cap 160 is assembled on the upper end of the buoyancy body 130, the fixing cap 160 ) Is a structure in which a plurality of holes 162 are formed to allow water to pass through, and a fountain hole 164 is formed in the center so that sea water can be pumped out if necessary, and the fixing cap 160 and the slider ( A buffer spring 170 is interposed between the 140 and the slider 140. Inside provides a remote operation method for the mobile reference point expression aerial image correction, characterized in that the conical mulgumeong 180 penetrating vertically is formed.

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According to the present invention, the installation of facial expression points in coastal areas where tidal phenomenon occurs not only severely restricts the activity of workers, but also increases the risk of safety accidents. Quickly and remotely handle aerial and aerial photography so that the location of the facial expression point can be easily moved and installed, as well as improving the efficiency of work, eliminating difficulties in installation and collection, Improved effects can be obtained to prevent the risk of human accidents.

1 is a conceptual diagram illustrating an operation method according to the present invention.
Figure 2 is an illustration of a removable facial expression reference point used in the operation method according to the present invention.
3 is a block diagram showing an operation method according to the present invention.
4 is a flowchart showing an operation method according to the present invention.
5 to 7 are exemplary views showing a modified example of the movable facial expression reference point of FIG.

Hereinafter, with reference to the accompanying drawings will be described in detail a preferred embodiment according to the present invention.

Prior to the description of the present invention, the following specific structures or functional descriptions are merely illustrated for the purpose of describing embodiments according to the inventive concept, and the embodiments according to the inventive concept may be embodied in various forms, It should not be construed as limited to the embodiments described herein.

In addition, embodiments in accordance with the concepts of the present invention can be variously modified and have a variety of forms, specific embodiments will be illustrated in the drawings and described in detail herein. However, this is not intended to limit the embodiments in accordance with the concept of the present invention to a specific disclosed form, it should be understood to include all modifications, equivalents, and substitutes included in the spirit and scope of the present invention.

The present invention is configured to enable smooth aerial photography through the installation of a faster facial expression reference point in the coastal area where the working conditions are in a very vulnerable state depending on the topography and tidal phenomenon.

That is, in the case of the coastal region, it is difficult to install a facial expression reference point because a person moves quickly in the intertidal zone. Accordingly, the present invention provides an operation method for displaying an expression marker on an unmanned aerial vehicle rather than a person so as to be able to move to the facial expression reference point, and remotely moving and installing the facial expression reference point through a camera and a transceiver using GNSS reception.

To this end, the present invention includes an unmanned aerial vehicle 100 constituting a movable facial expression reference point, as in the example of Figures 1 to 4.

At this time, the unmanned aerial vehicle 100 may be lightweight, inexpensive, wireless drones that are easy to remote control is preferred.

That is, the unmanned aerial vehicle 100 includes a satellite receiver 110 capable of receiving a GNSS satellite signal, and of course, a wireless communication module (not shown) capable of wirelessly communicating with the GNSS ground reference station 200. A camera (not shown) capable of capturing images is mounted, which is a known basic matter.

More specifically, the method of operating the remotely controlled facial expression point for aerial image correction according to the present invention is as follows.

First, the GNSS ground reference station installation step is performed.

The GNSS ground reference station 200 is a means for controlling the unmanned aerial vehicle 100 so as to communicate with the GNSS satellite 300 to precisely control the position of the unmanned aerial vehicle 100 so that the mobile expression reference point can be set at the correct position. .

In this way, when the GNSS ground reference station 200 is installed, a step of remotely moving the unmanned aerial vehicle 100 is performed.

The remote movement step is to move to a specific coordinate of the coastal area required for aerial photography, the unmanned aerial vehicle 100 moves to the corresponding coordinates while communicating with the GNSS satellite 300, and after the movement in the GNSS ground reference station 200 It ends by checking that the movement coordinates are correct.

After that, when the verification is completed, the removable facial reference point installation step is performed.

The mobile expression reference point installation step is a step of landing and fixing if the point where the unmanned aerial vehicle 100 can be landed, and hovering to maintain a certain altitude when the point is difficult to land, maintaining almost no movement.

When this step is completed, the aerial photographing step of starting the aerial photographing while the aircraft 400 is flying is performed.

Subsequently, a step of calculating a moving expression reference point coordinate is performed to correct an image of the aerial photographed image.

The coordinate calculation step is a calculation step of confirming the difference between the coordinates of the national coordinate system and the movable facial expression reference point.

Thereafter, a step of moving to another reference point or ending shooting by determining whether to move to another reference point or to end shooting is performed.

In this way, it is possible to provide and operate an accurate, quick and smooth facial expression reference point without the operator moving to the danger zone.

On the other hand, the present invention as shown in Figures 5 and 6, the landing gear 120 to facilitate takeoff when the unmanned aerial vehicle 100, such as a drone operating a mobile facial expression reference point landed on the slopes (tidal flat), etc. Can be configured in a grid frame structure.

In this case, the landing gear 120 is a hollow circular frame with a hollow inside is arranged in a grid.

In this case, both ends of the hollow circular frame must be sealed.

In addition, as shown in FIG. 7, the buoyancy body 130 is further fixed to the upper surface of the landing gear 120 having a grid frame structure in consideration of the case where the unmanned aerial vehicle 100 is seated on the sea surface.

The buoyancy body 130 has a cylindrical shape formed of polyethylene resin, four upper and lower slots 132 are formed in a predetermined length in the vertical direction at intervals of 90 ° around the buoyancy body 130, a slider ( 140 is inserted, and four rods 142 penetrating the upper and lower slots 132 are screwed to both sides of the outer peripheral surface of the slider 140, and a spherical buoy 150 is formed at the end of the rod 142. Replaceable assembly is fixed.

In addition, the upper end of the buoyancy body 130, the fixing cap 160 is screw-assembled, the fixing cap 160 is a structure in which a plurality of holes 162 is formed so that water can pass through, the center of the fountain hole ( 164 is formed so that the sea water can be discharged if necessary, the buffer spring 170 is interposed between the fixed cap 160 and the slider 140.

In addition, the inside of the slider 140 is a cone-shaped water hole 180 penetrated up and down is formed when the buoyant body 130 is moved, the seawater smoothly drained while the diameter is narrowed toward the upper side can be subjected to pressure It is configured so that it can receive more buoyancy here.

Therefore, the buoy 150 is further strengthened compared to when only the float 150 is installed so that the unmanned aerial vehicle 100 can stably float.

100: unmanned aerial vehicle 200: GNSS ground reference station
300: GNSS satellite 400: aircraft

Claims (1)

A step of installing a GNSS ground reference station, which is a means for controlling the unmanned aerial vehicle 100 so as to communicate with the GNSS satellite 300 to accurately control the position of the unmanned aerial vehicle 100 so as to set the mobile expression reference point at the correct position;
If the GNSS ground reference station 200 is installed, remotely moving the unmanned aerial vehicle 100 to specific coordinates of a coastal region required for aerial photography;
When the unmanned aerial vehicle 100 is moved to a specific coordinate and landed at the point where the unmanned aerial vehicle 100 can be landed and fixed, and when it is difficult to land, the movable expression is hovered to maintain a certain altitude so as to maintain no movement. Reference point installation step;
When the movable facial expression reference point installation step is completed, the aerial photographing step of starting the aerial photography while the aircraft 400 is flying;
A calculation step of checking a difference between a national coordinate system and a mobile expression reference point coordinate for image correction of the aerial photographed image after the aerial photographing step;
When the calculation step is completed, moving to another reference point or to end the shooting to move to another reference point or to end the recording; including remotely operated facial expression reference point for the correction of the aerial image,
The unmanned aerial vehicle 100 further includes a landing gear 120 having a lattice frame structure in which a hollow circular frame having an empty hollow is arranged in a grid so that the unmanned aerial vehicle 100 may land on a tidal flat;
The buoyancy body 130 is further fixed to the upper surface of the landing gear 120, the buoyancy body 130 has a cylindrical shape formed of polyethylene resin, four upper and lower slots 132 with a 90 ° interval around The predetermined length is formed in the vertical direction, the slider 140 is inserted into the buoyancy body 130, and four rods 142 penetrating the upper and lower slots 132 on both sides of the outer circumferential surface of the slider 140. The screw is fastened, the spherical buoy 150 is assembled and fixed to the end of the rod 142, the fixing cap 160 is assembled on the upper end of the buoyancy body 130, the fixing cap 160 ) Is a structure in which a plurality of holes 162 are formed to allow water to pass through, and a fountain hole 164 is formed in the center so that sea water can be pumped out if necessary, and the fixing cap 160 and the slider ( A buffer spring 170 is interposed between the 140 and the slider 140. Inside the remote mobile reference point expression method for operating the air image correction, characterized in that the conical mulgumeong 180 penetrating vertically is formed.

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