KR20230094602A - Earthworks management system using unmanned aerial vehicle and earthworks management method using the same - Google Patents

Abstract

An earthworks process management system using an unmanned aerial vehicle according to one technical aspect of the present invention provides an unmanned aerial vehicle for generating and providing a plurality of image data for a preset ground area by flying according to a set flight path and providing the unmanned aerial vehicle with the flight path and a management server generating a construction topographical map for the ground area by matching the plurality of image data. The management server may compare a plurality of construction topographic maps generated at different points in time with respect to the ground area to generate process data for an earthwork process for the ground area.

Description

Earthworks management system using unmanned aerial vehicle and earthworks management method using the same}

The present invention relates to a construction management technology based on ICT (Information and Communication Technology), and more specifically, to an earthworks process management system using an unmanned aerial vehicle and an earthworks process management method using the same.

With the development of ICT (Information and Communication Technology) technology, ICT-based system improvements are being made in various industries.

The construction field is also one of these industries, and improved effects such as productivity improvement and stability are expected by applying ICT technology to various processes such as construction process management and site management.

On the other hand, conventional ICT-based construction technology collects data by installing a camera or sensor at a fixed location on a construction site, or directly collects construction-related data, We provide construction related management.

In the case of this prior art, in large-scale, large-scale processes such as civil engineering, it is difficult to install to cover a wide location even if cameras, sensors, or people are used, and it is difficult to collect data to cover all of these large-scale, large-scale processes. there is

Accordingly, in the case of the prior art, there is a limitation in that it is impossible to manage progress or derive risk factors for large-scale, mass-scale processes such as civil engineering.

One technical aspect of the present invention is to solve the above-mentioned problems of the prior art, using an unmanned aerial vehicle to secure continuous photos of a large construction area and based on this, to accurately and efficiently manage the earthworks process. It is to provide an earthworks process management system using an unmanned aerial vehicle and an earthworks process management method using the same.

In addition, one technical aspect of the present invention is to generate a construction topographical map including a digital elevation model based on an image obtained from an unmanned aerial vehicle, thereby generating a construction topographical map for a wide area without a separate complicated surveying process. An earthworks process management system using an aircraft and an earthworks process management method using the same are provided.

In addition, one technical aspect of the present invention is, after repeatedly performing surveys by unmanned aerial vehicles at different times, the unmanned aerial vehicle that can quantify and confirm the process rate of earthworks through comparison between construction topographic maps for each survey time point An earthworks process management system using the same and an earthworks process management method using the same are provided.

The above objects and various advantages of the present invention will become more apparent from preferred embodiments of the present invention by those skilled in the art.

One technical aspect of the present invention proposes an earthworks process management system using an unmanned aerial vehicle. The earthworks process management system using the unmanned aerial vehicle provides the unmanned aerial vehicle and the unmanned aerial vehicle for generating and providing a plurality of image data for a predetermined ground area by flying according to a set flight path, and providing the flight path to the plurality of and a management server generating a construction topographical map for the ground area by matching image data. The management server may compare a plurality of construction topographic maps generated at different points in time with respect to the ground area to generate process data for an earthwork process for the ground area.

In one embodiment, the management server sets a flight path including information on at least one reference point and a plurality of observation points and provides the information to the unmanned aerial vehicle, and the unmanned aerial vehicle includes at least one reference point and a plurality of observation points located on the ground. It is possible to generate a plurality of image data for the ground area by flying along the flight path based on the observation point of .

In one embodiment, the management server generates a flight path including information on at least one reference point and a plurality of observation points associated with the ground area, and provides the UAV flight controller to the unmanned aerial vehicle. A data collection unit that collects a plurality of image data of a ground area, and identifies the at least one reference point and a plurality of observation points with respect to the plurality of image data to set a location reference of at least part of the image data, and sets the location reference It may include a construction topographical map generation unit for generating a construction topographical map for the ground area by matching successive image data based on the above.

In one embodiment, the construction topographical map may include an orthophoto of the ground area and a digital elevation model of the ground area.

In one embodiment, the management server calculates a change in earthwork volume based on a digital elevation model generated at a first time point for the ground area and a digital elevation model generated at a second time point different from the first time point, The earthworks process analyzer may further include an earthworks process analysis unit that generates process data for the earthworks process for the ground area.

In one embodiment, the management server includes preliminary design drawing information designed in advance for the ground area, and quantitatively compares the preliminary design drawing information with the earthwork volume of the current process calculated by the earthworks process analysis unit, It may further include a digital process drawing unit generating a digital process drawing by reflecting the comparison result on the digital drawing.

One technical aspect of the present invention proposes an earthworks process management method using an unmanned aerial vehicle. The earthworks process management method using the unmanned aerial vehicle is an earthworks process management method performed in an earthworks process management system including an unmanned aerial vehicle and a management server for managing the earthworks process in conjunction with the unmanned aerial vehicle, wherein the management server includes at least one Setting a flight path including information on a reference point and a plurality of observation points and providing the unmanned aerial vehicle to the unmanned aerial vehicle, wherein the unmanned aerial vehicle flies according to the set flight path to generate a plurality of image data for a preset ground area and providing, by the management server, matching the plurality of image data provided from the unmanned aerial vehicle to generate a construction topographical map for the ground area, and generating, by the management server, the ground area at different points in time The method may include generating process data for an earthwork process for the ground area by comparing a plurality of construction topographic maps.

In one embodiment, the generating of the construction topographical map may include collecting, by the management server, a plurality of image data of the ground area from the unmanned aerial vehicle; Identifying at least one reference point and a plurality of observation points to set a location reference for at least some image data, and the management server matching consecutive image data based on the location reference to obtain a construction topographical map for the ground area. It may include generating steps.

In one embodiment, the step of generating process data for the earthworks process for the above-ground area includes a digital elevation model generated at a first time point with respect to the above-ground area, and a digital elevation model created at a second time point different from the first time point. The method may further include generating process data for an earthwork process for the ground area by calculating a change in earthwork volume based on the digital elevation model.

In one embodiment, the earthworks process management method includes preliminary design drawing information designed in advance for the ground area, and quantitatively compares the preliminary design drawing information with the earthworks volume of the current process calculated by the earthworks process analysis unit, , generating a digital process drawing by reflecting the comparison result on the digital drawing.

One technical aspect of the present invention proposes a storage medium. The storage medium is a storage medium storing computer readable instructions, which, when executed by a management server, cause the management server to include information on at least one reference point and a plurality of observation points. operation of setting a flight path and providing it to the unmanned aerial vehicle, operation of matching a plurality of image data provided from the unmanned aerial vehicle to generate a construction topographical map for the ground area, and a plurality of construction maps generated at different points in time with respect to the ground area. An operation of generating process data for an earthworks process for the ground area may be performed by comparing topographical maps.

The means for solving the problems described above do not enumerate all the features of the present invention. Various means for solving the problems of the present invention will be understood in more detail with reference to specific embodiments of the detailed description below.

According to one embodiment of the present invention, there is an effect of obtaining continuous photos of a wide construction area using an unmanned aerial vehicle and performing accurate and efficient earthwork process management based on this.

In addition, according to one embodiment of the present invention, by generating a construction topographical map including a digital elevation model based on an image obtained from an unmanned aerial vehicle, it is possible to generate a construction topographical map for a wide area without a separate complicated surveying process. there is

In addition, according to one embodiment of the present invention, after repeatedly performing surveys by unmanned aerial vehicles at different times, there is an effect of quantifying and confirming the process rate of earthworks through comparison between construction topographic maps for each survey time point. .

1 is a diagram illustrating an application example of an earthworks process management system using an unmanned aerial vehicle according to an embodiment of the present invention.
2 is a block diagram illustrating an example of an unmanned aerial vehicle according to an embodiment of the present invention.
3 is a diagram illustrating an exemplary computing operating environment of a management server according to an embodiment of the present invention.
4 is a block diagram illustrating a management server according to an embodiment of the present invention.
5 is a flowchart illustrating an earthworks process management method using an unmanned aerial vehicle according to an embodiment of the present invention.
FIG. 6 is a block diagram illustrating an embodiment of a construction topographical map generating unit shown in FIG. 4 .
7 to 8 are views for explaining the construction topographical map generation unit shown in FIG. 6 .
FIG. 9 is a block diagram illustrating an embodiment of an earthworks process analyzer shown in FIG. 4 .
10 to 15 are diagrams for explaining the earthworks process analysis unit shown in FIG. 9 .

Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings.

However, the embodiments of the present invention can be modified in many different forms, and the scope of the present invention is not limited to the embodiments described below. In addition, the embodiments of the present invention are provided to more completely explain the present invention to those skilled in the art.

That is, the above objects, features, and advantages will be described later in detail with reference to the accompanying drawings, and accordingly, those skilled in the art to which the present invention belongs will be able to easily implement the technical spirit of the present invention. In describing the present invention, if it is determined that the detailed description of the known technology related to the present invention may unnecessarily obscure the subject matter of the present invention, the detailed description will be omitted. Hereinafter, preferred embodiments according to the present invention will be described in detail with reference to the accompanying drawings. In the drawings, the same reference numerals are used to indicate the same or similar components.

Also, singular expressions used in this specification include plural expressions unless the context clearly indicates otherwise. In this application, terms such as "consisting of" or "comprising" should not be construed as necessarily including all of the various components or steps described in the specification, and some of the components or some of the steps It should be construed that it may not be included, or may further include additional components or steps.

In addition, in order to describe the system according to the present invention, various components and sub-components thereof are described below. These components and their subcomponents may be implemented in various forms, such as hardware, software, or a combination thereof. For example, each element may be implemented as an electronic configuration for performing a corresponding function, or may be implemented as software itself that can be run in an electronic system or as one functional element of such software. Alternatively, it may be implemented as an electronic configuration and corresponding driving software.

The various techniques described herein may be implemented with hardware or software, or a combination of both where appropriate. As used herein, the terms "Unit", "Server" and "System" likewise refer to a computer-related entity, that is, hardware, a combination of hardware and software, software or It can be treated as equivalent to running software. In addition, each function executed in the system of the present invention may be configured in module units and recorded in one physical memory or distributed between two or more memories and recording media.

Although various flow charts have been disclosed to describe the embodiments of the present invention, these are for convenience of description of each step, and each step is not necessarily performed in the order of the flowchart. That is, each step in the flowchart may be performed simultaneously with each other, in an order according to the flowchart, or in an order reverse to that in the flowchart.

In this specification, a road is exemplified and described as an object subject to occupancy (hereinafter referred to as 'object for occupancy'), but other public properties subject to occupancy may also be objects for occupancy.

1 is a diagram illustrating an application example of an earthworks process management system using an unmanned aerial vehicle according to an embodiment of the present invention.

Referring to FIG. 1 , an earthworks process management system using an unmanned aerial vehicle may include an unmanned aerial vehicle 100 and a management server 300. Depending on the embodiment, a manager terminal 500 for accessing the management server 300 to inquire and supervise information on earthworks process management may be further included.

The unmanned aerial vehicle 100 may generate image data for a preset ground area that is a subject of an earthworks process in conjunction with the management server 300 . For example, the unmanned aerial vehicle 100 receives a flight path set for the ground area from the management server 300, flies according to the flight path, generates a plurality of image data for the ground area, and provides the data to the management server 300. can do.

The management server 300 may provide a flight path to the unmanned aerial vehicle 100 . For example, the management server 300 may set a flight path including information on at least one reference point and a plurality of observation points and provide the information to the unmanned aerial vehicle. The unmanned aerial vehicle 100 may generate a plurality of image data for the ground area by flying along a flight path based on at least one reference point and a plurality of observation points located on the ground.

The management server 300 may match a plurality of image data provided from the unmanned aerial vehicle 100 to generate a construction topographical map for the ground area.

The management server 300 may provide process management for each time zone with respect to the land area subject to earthwork process management. For example, the management server 300 may compare a plurality of construction topographical maps generated at different points in time to generate process data for an earthwork process for a land area.

Hereinafter, various embodiments of the unmanned aerial vehicle 100 and the management server 300 will be described in more detail with reference to FIGS. 2 to 15 .

2 is a block diagram illustrating an example of an unmanned aerial vehicle according to an embodiment of the present invention.

Referring to FIG. 2 , the unmanned aerial vehicle 100 may include a power supply unit 110, a flight control unit 120, an image capture unit 130, a data storage unit 140, and a communication unit 150.

The power supply unit 110 may store power and supply the stored power to other components of the unmanned aerial vehicle 100.

The flight control unit 120 may control driving of a flight driving device (not shown) of the unmanned aerial vehicle 100 . For example, the flight controller 120 receives a flight path from the management server 300, and here, the flight path may include information on at least one reference point and a plurality of observation points. The flight control unit 120 analyzes the image captured by the image capturing unit 130 to determine whether a reference point or observation point exists, and applies a flight path based on the determination to perform flight.

The image capturing unit 130 may capture image data of the ground area when the unmanned aerial vehicle 100 is in flight and passes the ground area to be earthworks. For example, the flight control unit 120 may request the image capture unit 130 to capture image data when in flight within the flight path, and the image capture unit 130 may perform a predetermined time interval or a predetermined movement interval in the ground area. It is possible to generate image data by taking an image for .

The data storage unit 140 may store image data captured by the image capturing unit 130 .

The communication unit 150 may establish wireless communication with the outside, for example, the management server 300, and provide image data stored in the data storage unit 140 to the management server 300.

Hereinafter, with reference to FIGS. 3 to 15 , various embodiments of a management server and various embodiments of an earthworks process management method using an unmanned aerial vehicle performed therein will be described in more detail.

3 is a diagram illustrating an exemplary computing operating environment of a management server according to an embodiment of the present invention.

3 is intended to provide a general and simplified description of a suitable computing environment in which embodiments of the management server 300 may be implemented. Referring to FIG. 3, a computing device is shown as an example of the management server 300. do.

The computing device may include at least a processing unit 303 and a system memory 301 .

A computing device may include a plurality of processing units that cooperate in executing a program. Depending on the exact configuration and type of computing device, system memory 301 may be volatile (eg, RAM), non-volatile (eg, ROM, flash memory, etc.), or a combination thereof. The system memory 301 includes a suitable operating system 302 for controlling the operation of the platform, which may be, for example, the WINDOWS operating system from Microsoft or Linux. System memory 301 may include one or more software applications, such as program modules, applications, and the like.

The computing device may include additional data storage devices 304 such as magnetic disks, optical disks, or tape. Such additional storage may be removable storage and/or fixed storage. Computer readable storage media may include volatile and nonvolatile, removable and non-removable media implemented in any method or technology for storage information such as computer readable instructions, data structures, program modules, or other data. Both system memory 301 and storage 304 are examples of computer-readable storage media. Computer readable storage media may include RAM, ROM, EEPROM, flash memory or other memory technology, CD-ROM, DVD or other optical storage, magnetic tape, magnetic disk storage or other magnetic storage device, or any other It may include, but is not limited to, any other medium that stores information and can be accessed by computing device 300 .

A computing device may include an input device 305 , such as a keyboard, mouse, pen, voice input device, touch input device, and comparable input devices. Output devices 306 may include, for example, displays, speakers, printers, and other types of output devices. Since these devices are widely known in the art, a detailed description thereof will be omitted.

A computing device may include a communication device 307 that allows the device to communicate with other devices, such as over a network in a distributed computing environment, e.g., wired and wireless networks, satellite links, cellular links, local area networks, and comparable mechanisms. . Communications device 307 is one example of communication media, which may include computer readable instructions, data structures, program modules, or other data therein. By way of example, communication media includes, but is not limited to, wired media such as a wired network or direct wired connection, and wireless media such as acoustic, RF, infrared and other wireless media.

The management server 300 may be described as a functional configuration implemented in such a computing environment. This will be described with reference to FIG. 3 .

4 is a block diagram illustrating a management server according to an embodiment of the present invention, and FIG. 5 is a flowchart illustrating a method for managing an earthworks process using an unmanned aerial vehicle according to an embodiment of the present invention.

Referring to FIG. 4, the management server 300 includes a data collection unit 310, a UAV flight control unit 320, a construction topographical map generation unit 330, an earthworks process analysis unit 340, and a digital process drawing unit 350. can include

Referring further to FIG. 5 , the UAV flight control unit 320 may set at least one reference point and a plurality of observation points associated with a ground area that is a subject of earthwork process management (S510). Locations of the at least one reference point and the plurality of observation points may be set by a manager, and reference points or observation points may be placed at actual locations corresponding to the set locations. For example, such a reference point or observation point may be a kind of anti-aircraft beacon, and such an anti-aircraft beacon may be provided at an actual location through surveying in order to be accurately positioned at a preset location.

The UAV flight control unit 320 may generate a flight path including information on the at least one reference point and a plurality of observation points and provide it to the unmanned aerial vehicle 100 (S520).

The unmanned aerial vehicle 100 may generate a plurality of image data by capturing an image while flying along a flight path, and the data collection unit 310 may collect and store the plurality of image data.

The construction topographical map generator 330 may generate a construction topographical map based on the plurality of image data collected by the data collection unit 310 .

For example, the construction topographic map generation unit 330 may identify at least one reference point and a plurality of observation points with respect to a plurality of image data, and set a reference point for the position of at least part of the image data (S540).

The construction topographical map generation unit 330 may generate a construction topographical map for the ground area by matching consecutive image data based on the location reference (S550).

Here, the construction topographic map may include an orthophoto of the ground area and a digital elevation model of the ground area.

The earthworks process analyzer 340 may compare construction topographic maps generated at different points of time to generate earthworks process data for the ground area, and provide the information to a manager.

For example, the earthworks process analyzer 340 calculates a change in earthwork volume based on a digital elevation model generated at a first point in time for the ground area and a digital elevation model generated at a second point in time different from the first point in time to calculate the groundwork volume change. Process data for the earthwork process for the region may be generated (S560).

The digital process drawing unit 350 may provide a digital process by comparing a pre-designed drawing of the ground area with the earthworks process data analyzed by the earthworks process analyzer 340 .

For example, the digital process drawing unit 350 may store and manage prior design drawing information designed in advance for the ground area. The digital process drawing unit 350 may quantitatively compare the preliminary design drawing information and the earthwork volume of the current process calculated by the earthworks process analysis unit 340, and reflect the comparison result on the digital drawing to generate a digital process drawing.

Hereinafter, various embodiments of each component of the management server will be described in more detail with reference to FIGS. 6 to 15 .

FIG. 6 is a block diagram illustrating an embodiment of a construction topographical map generating unit shown in FIG. 4 .

7 and 8 are diagrams for explaining the construction topographical map generation unit shown in FIG. 6, a flight method (auyo mission), shooting altitude (100 m), vertical and horizontal overlap (80%, 75%), shutter speed (1/ 1250 sec) and ISO (400) are set the same, and examples of three construction topographic maps with time differences through a total of three observations are shown, and will be described below with reference to FIGS. 6 to 8.

Referring to FIG. 6 , the construction topographical map generation unit 330 may include a location reference setting module 331, an orthophoto generation module 332, and a digital elevation model generation module 333.

The position reference setting module 331 may match position accuracy using a position reference in order to match position accuracy even in different orders with respect to a plurality of image data. That is, it is used to match positional accuracy by using at least one reference point and a plurality of observation points as positioning standards.

FIG. 7 is a diagram showing the flight course of each unmanned aerial vehicle in three observations, showing that the unmanned aerial vehicle flies along the flight course based on anti-aircraft beacons, i.e., at least one reference point and a plurality of observation points. Here, the reference point may be an anti-aircraft marker indicating the starting point or end point of shooting, and the observation point may be a reference marker for changing the flight path of an unmanned aerial vehicle, for example, a marker indicating an outer slope of a ground area.

In one embodiment, the position reference setting module 331 may perform resolution analysis as well as position reference setting for a plurality of image data. That is, the resolution of the corresponding image data can be analyzed based on the size of the anti-aircraft beacon displayed in the plurality of image data. This is because the unmanned aerial vehicle 100 is photographed at the same photographing altitude, so the resolution can be set based on the size of the anti-aircraft beacons. As a result of analysis, the image resolution shown in FIG. 7 showed a GSD (image resolution) of about 1.9 cm, which satisfies the required image resolution of 2 cm.

The orthophoto generating module 332 may generate an orthophoto of the ground area based on a plurality of image data.

Figures (a) to (c) of FIG. 8 show examples of orthophotos generated from the first to third observations.

For example, the orthophoto generation module 332 may identify a first standard video image based on a reference point, and generate an orthophoto by matching the corresponding video image with a plurality of video data, that is, images that are continuously captured. This matching can be implemented by stitching successive images. Since various methods can be applied to the matching of the plurality of consecutive images, it is not limited to a specific method here. In the case of image data having an observation point, the orthophoto generation module 332 may generate an orthophoto corresponding to the ground area as in the example shown in FIG. 8 by changing and matching the matching direction.

The digital elevation model generating module 333 may generate a digital elevation model by calculating elevation information based on an orthophoto. A digital elevation model (DEM) is a three-dimensional form of spatial information. Since an unmanned aerial vehicle navigates at a constant speed and takes images at regular distance intervals, the digital elevation model generation module 333 uses the parallax in two adjacent 2D image data You can create elevation information of the ground surface. That is, the digital elevation model generating module 333 can calculate the stereoscopic value of the ground surface by calculating the binocular parallax between two adjacent image data since image data is captured at regular intervals. Figures (d) to (f) of FIG. 8 show examples of digital elevation models generated from first to third observations.

FIG. 9 is a block diagram illustrating an earthworks process analyzer shown in FIG. 4 according to an embodiment, and FIGS. 10 to 15 are diagrams for explaining the earthworks process analyzer shown in FIG. 9 .

Hereinafter, an embodiment of the earthworks process analyzer 340 will be described with reference to FIGS. 9 to 15 .

First, referring to FIG. 9 , the earthworks process analyzer 340 may include an earthworks volume estimation module 341 and a terrain change volume analysis module 342 .

The earthwork volume estimation module 341 may estimate the earthwork volume, that is, the earthwork volume, based on a digital elevation model generated based on image data captured at different orders.

를 산출할 수 있다.Specifically, the earthwork volume estimation module 341 uses Equation 1 below to estimate the earthwork volume expressed as the volume of a polygon.

can be calculated.

[Equation 1]

This amount of excavation is calculated by setting the target area as a polygon, and in the case of road excavation, this requirement is satisfied because the flatness of the terrain is secured after the compaction process.

는 토공양을 구하고자 하는 대상지역의 양단면의 면적이다. 대상지역의 양단면의 간격을

이라 할 때, 추정 토공량

는 아래의 수학식 2를 만족한다.From here,

is the area of both sections of the target area for which earthworks are to be obtained. The distance between both ends of the target area

When , the estimated earthwork volume

satisfies Equation 2 below.

[Equation 2]

The image-based process drawing can derive the current process status through the difference between the digital elevation model for the change in earthwork volume (considered as topographical change) due to the current cutting process and the elevation value of the planned elevation data shown in the design drawing. . In the case of road earthworks, it can be regarded as a linear structure through cut soil and repetitive compaction, so it is possible to calculate the area of the cross section through trapezoidal area calculation of the planned elevation and the height arch in the current compaction state, and the elevation value at the intersection of each grid It can be calculated by the following Equation 3.

[Equation 3]

는 대상격자 교차점 표고값은 인접 격자 표고값,

은 인접격자수이다.here,

is the target grid intersection elevation value, the adjacent grid elevation value,

is the number of adjacent grids.

The earthwork volume estimation module 341 calculates all the elevation values at the grid intersections constituting the digital elevation model and the planned elevation data, and then the difference between the elevation values of the grid intersection of the digital elevation model and the grid elevation of the planned elevation data at each intersection. By calculating , the area can be calculated by applying the trapezoidal volume calculation. 10 is a diagram explaining such a trapezoidal volume calculation method.

In addition, the volume formula is expressed as Equation 4 below.

[Equation 4]

As a result, the earthwork volume estimation module 341 may calculate the volume of the grid section and then estimate the earthwork volume by applying the two-sided average method and the prism formula, which are the earthwork volume calculation formulas, respectively.

The terrain change amount analysis module 342 may calculate the amount of change in the amount of earthwork in different orders based on the amount of earthwork estimated by the earthwork amount estimation module 341 and analyze the amount of change in topography based on this.

11 shows the estimated earthwork volume change in the first measurement and the third measurement. Among the road construction sites, the section where the embankment process has been carried out a lot is set as the comparison area, and the topographical change detection for this can be visualized as shown in the topographical change detection picture. As a result of analyzing the cross section before and after the embankment of the earthwork volume, the terrain change amount analysis module 342 may analyze the cut coefficient, fill coefficient, area, cut volume, and fill volume based on the change in the hole volume. FIG. 12 is a graph showing the amount of cut soil in the example shown in FIG. 11 .

13 shows the estimated earthwork volume change in the second measurement and the third measurement, and the terrain change amount analysis module 342 can analyze the cut coefficient, the fill coefficient, the area, the cut volume, and the fill volume based on the change in the hole volume. there is. FIG. 14 is a graph showing the amount of cut soil in the example shown in FIG. 13 .

The present invention described above is not limited by the above-described embodiments and the accompanying drawings, but is limited by the claims to be described later, and the configuration of the present invention can be varied within a range that does not deviate from the technical spirit of the present invention. Those skilled in the art can easily know that the present invention can be changed and modified accordingly.

100: drone
300: management server
500: administrator terminal
110: power supply unit 120: flight control unit
130: image capture unit 140: data storage unit
150: Ministry of Communication
301: system memory 302: operating system
303: processing unit 304: storage
305: input device 306: output device
307: communication device
310: data collection unit 320: UAV flight control unit
330: Construction Topographic Map Generation Unit 340: Earthwork Process Analysis Unit
331: position reference setting module 332: orthophoto generation module
333: digital elevation model generation module
341: earthwork volume estimation module 342: terrain change volume analysis module

Claims (11)

An unmanned aerial vehicle that flies along a set flight path to generate and provide a plurality of image data for a preset ground area; and
a management server providing the flight path to the unmanned aerial vehicle and matching the plurality of image data to create a construction topographical map of the ground area;
including,
The management server,
Comparing a plurality of construction topographic maps generated at different points in time with respect to the ground area to generate process data for the earthwork process for the ground area,
Earthwork process management system using unmanned aerial vehicles.
The method of claim 1, wherein the management server,
Setting a flight path including information on at least one reference point and a plurality of observation points and providing the information to the unmanned aerial vehicle;
The unmanned aerial vehicle generates a plurality of image data for the ground area by flying along the flight path based on at least one reference point and a plurality of observation points located on the ground.
Earthwork process management system using unmanned aerial vehicles.
The method of claim 2, wherein the management server,
a UAV flight control unit generating a flight path including information on at least one reference point and a plurality of observation points associated with the ground area and providing the information to the unmanned aerial vehicle;
a data collection unit that collects a plurality of image data of the ground area from the unmanned aerial vehicle; and
The at least one reference point and the plurality of observation points are identified with respect to the plurality of image data to set a location standard of at least some image data, and the construction of the ground area is performed by matching successive image data based on the location standard. a construction topographical map generating unit that generates a topographical map;
including,
Earthwork process management system using unmanned aerial vehicles.
The method of claim 3, wherein the construction topographical map
Comprising an orthophoto of the terrestrial area and a digital elevation model for the terrestrial area,
Earthwork process management system using unmanned aerial vehicles.
The method of claim 4, wherein the management server,
A process for the earthworks process for the ground area by calculating the change in earthwork volume based on the digital elevation model generated at a first time point for the ground area and the digital elevation model generated at a second time point different from the first time point. Earthworks process analysis unit for generating data;
Including more,
Earthwork process management system using unmanned aerial vehicles.
The method of claim 5, wherein the management server,
It includes preliminary design drawing information designed in advance for the ground area, quantitatively compares the preliminary design drawing information and the earthworks volume of the current process calculated by the earthworks process analysis unit, and reflects the comparison result to the digital drawing for digital processing. digital process drawings to generate drawings;
Including more,
Earthwork process management system using unmanned aerial vehicles.
An earthworks process management method performed in an earthworks process management system including an unmanned aerial vehicle and a management server that manages the earthworks process in conjunction with the unmanned aerial vehicle,
setting, by the management server, a flight path including information on at least one reference point and a plurality of observation points and providing the information to the unmanned aerial vehicle;
generating and providing, by the unmanned aerial vehicle, a plurality of image data for a preset ground area by flying along the set flight path;
generating, by the management server, a construction topographical map of the ground area by matching the plurality of image data provided from the unmanned aerial vehicle; and
generating, by the management server, process data for an earthwork process for the ground area by comparing a plurality of construction topographic maps generated at different points in time with respect to the ground area;
including,
Earthwork process management method using unmanned aerial vehicle.
The method of claim 7, wherein the generating of the construction topographical map comprises:
Collecting, by the management server, a plurality of image data of the ground area from the unmanned aerial vehicle;
identifying, by the management server, the at least one reference point and the plurality of observation points with respect to the plurality of image data, and setting a location standard of at least some of the image data; and
generating, by the management server, a construction topographical map of the land area by matching consecutive image data based on the location reference;
including,
Earthwork process management method using unmanned aerial vehicle.
The method of claim 8, wherein the generating process data for the earthworks process for the ground area comprises:
A process for the earthworks process for the ground area by calculating the change in earthwork volume based on the digital elevation model generated at a first time point for the ground area and the digital elevation model generated at a second time point different from the first time point. generating data;
Including more,
Earthwork process management method using unmanned aerial vehicle.
The method of claim 9, wherein the earthworks process management method,
It includes preliminary design drawing information designed in advance for the ground area, quantitatively compares the preliminary design drawing information and the earthwork volume of the current process calculated by the earthworks process analysis unit, and reflects the comparison result to the digital drawing to digital process drawing generating;
Including more,
Earthwork process management method using unmanned aerial vehicle.
A storage medium storing computer readable instructions,
The instructions, when executed by the management server, cause the management server to:
setting a flight path including information on at least one reference point and a plurality of observation points and providing the information to the unmanned aerial vehicle;
generating a construction topographical map for a ground area by matching a plurality of image data provided from the unmanned aerial vehicle; and
generating process data for an earthwork process for the ground area by comparing a plurality of construction topographic maps generated at different points in time with respect to the ground area;
A storage medium that allows to perform

Images