KR101628750B1

KR101628750B1 - Method for safety prediction of terrain using a 3D aerial shooting

Info

Publication number: KR101628750B1
Application number: KR1020150107351A
Authority: KR
Inventors: 황인영; 김경호
Original assignee: 주식회사 에이베스트
Priority date: 2015-07-29
Filing date: 2015-07-29
Publication date: 2016-06-09

Abstract

The present invention relates to a method for predicting the safety of a terrain using 3D aerial photographing, which enables a 3D aerial photographing of a terrain using a dron and a comparative analysis of the terrain to predict and warn dangerous factors such as a disaster occurring around the user The method comprising the steps of: a) setting a shooting region in a central server, setting a GPS coordinate at an end of the shooting region, and controlling the driving of the dron so as not to deviate from an accurate shooting region; b) photographing the terrain with a 3D camera attached to the drones; c) measuring the height of the terrain from the ground with a laser range finder attached to the drones; d) 3D mapping, displaying and accumulating terrain images photographed with the 3D camera, and cumulatively storing the terrain images by time zone; And e) comparing the cumulatively stored 3D mapped images with each other at predetermined time intervals to determine whether the terrain is deformed.

Description

[0001] The present invention relates to a method for estimating safety of a terrain using 3D aerial photographing,

The present invention relates to a method for predicting the safety of a terrain using 3D aerial photographing, more specifically, a 3D aerial photographing of a terrain using an unmanned airplane (hereinafter referred to as a drones) And more particularly, to a method for predicting the safety of a terrain using 3D aerial photographing, which enables prediction and warning of dangerous factors such as a disaster occurring in advance.

In recent years, various disasters have occurred frequently due to global warming phenomenon, environmental pollution, and so on. As a result, there is a growing interest in disaster prevention in each country. In particular, it is spurring research and development on systems that can detect and prevent various disasters such as earthquakes, tsunamis, fires, typhoons, floods, heavy rains or landslides in advance.

The current weather forecasting system that monitors the weather changes forecasts a wide area through meteorological satellites, but detailed weather information can not be transmitted to local places such as mountain valleys and riverside amusement parks. In reality, Remains.

For example, when a disaster such as a mountainous valley landslide occurs, the management office receives a primary weather report from the central control agency and delivers it again, so it can not prepare for floods occurring within a short time.

As part of such disaster prevention systems, the conventional disaster alarm system is a system in which disaster alarm systems such as the central government or local government disaster prevention agencies are operated by various disaster observation stations observing rainfall, snowfall, earthquake, And the results were used to judge the likelihood of a disaster, the occurrence of a disaster, and the extent of the disaster, and then alarmed through media such as newspapers and broadcasts.

However, the person visited the expected spot of the disaster and confirmed it by using the equipment which detects various disaster factors at the spot. In this case, it is inevitable to monitor the disaster factors only in some places where disaster is expected due to budget and manpower shortage. In particular, it is impossible to accurately detect minute changes such as terrain that predicts disasters, There was a limit.

Korean Patent No. 10-0589662 (June 07, 2006)

In order to overcome the above-described problems, it is an object of the present invention to provide a method for predicting and warning dangerous factors such as a disaster occurring around a user by 3D aerial photographing of a terrain using a drone, It is an object of the present invention to provide a safety prediction method of terrain using 3D aerial photographing.

According to another aspect of the present invention, there is provided a method of controlling a drones, the method comprising: a) setting a shooting region in a central server, setting GPS coordinates at an end portion of the shooting region, and controlling the dron to travel without deviating from an accurate shooting region; b) photographing the terrain with a 3D camera attached to the drones; c) measuring the height of the terrain from the ground with a laser range finder attached to the drones; d) 3D mapping, displaying and accumulating terrain images photographed with the 3D camera, and cumulatively storing the terrain images by time zone; And e) comparing the cumulatively stored 3D mapped images with each other during a predetermined period of time to determine whether the terrain is deformed.

The photographing area is formed in a quadrangular plane, and it is preferable to set the GPS coordinates for each of four vertexes of a quadrangle.

More preferably, the deformation of the terrain is at least any one of a form of the ground, a shape of the mountain, a specific rock or a specific building, a position of the bridge and a moving position of the bridge and an inclination thereof.

If it is determined in the step e that the deformation of the terrain is deformed to be equal to or larger than the reference value stored in advance, an ARS alert call or warning character may be sent to the personal portable terminal in the corresponding area.

The 3D camera captures the X, Y, and Z axes, and maps the captured images to set the three-dimensional elevation and position of the terrain.

According to the safety prediction method of terrain using 3D aerial photographing according to the present invention, 3D aerial photographing of the terrain using a dron and comparison and analysis of the terrain are performed to predict and predict dangerous factors such as a disaster occurring around the user There is a warning effect.

In addition, since collapse of buildings and bridges can be predicted and warned in advance, it is possible to prevent damage to persons.

In addition, according to the present invention, a module or algorithm programmed in the conventional drones can be easily implemented in a simple manner, so that the development cost can be reduced.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a block diagram of a system for implementing a method for predicting a safety of a terrain using 3D aerial photographing according to a preferred embodiment of the present invention; FIG.
BACKGROUND OF THE INVENTION Field of the Invention The present invention relates to a method for predicting a safety of a terrain using 3D aerial photographing according to a preferred embodiment of the present invention.
3 shows various examples of remote devices for operating a drones;

The present invention relates to a method for predicting the safety of a terrain using 3D aerial photographing in which 3D aerial photographing of a terrain is performed using a dron and comparative analysis of the terrain is performed to predict and warn dangerous factors such as a disaster occurring around the user As a technical point.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, preferred embodiments of a method for predicting the safety of a terrain using 3D aerial photographing according to the present invention will be described in detail with reference to the accompanying drawings.

FIG. 1 is a block diagram of a system for implementing a method for predicting the safety of a terrain using 3D aerial photographing according to a preferred embodiment of the present invention. FIG. 2 is a block diagram of a system for predicting the safety of a terrain using 3D aerial photographing according to a preferred embodiment of the present invention. Fig.

As shown in the figure, in order to implement the present invention, the coordinate reference points 100 and 110, the GPS satellite 200, the drones 300, the 3D camera 310, the repeater 400, the central server 500, (600).

Here, the drone 300 means a radio-controlled flight device. Devices such as radio-controlled toy helicopters and military bombardment drones are also called drones. It is often referred to as a multi-copter in the sense of a flying body with several propellers. By aviation law, it means unmanned aerial vehicle of 150kg or less in weight.

Since the drones were developed for military use in the early 20th century, powerful nations such as the United States have been developing it competitively and have been used in actual combat so far.

In the 2000s, drones have been used in commercial applications such as aerial photography and entertainment. The above-mentioned drones are evaluated as being endlessly utilized, and they are being developed in various fields for a variety of services as well as aviation shooting and entertainment.

A typical field in which research is underway is the 'securing technology for drones'. In recent years, serious crimes such as murder and various sex crimes have increased, and there has been a strong demand for technology to secure the safety of users by using the drone in cases where incidents and incidents are constant. Nevertheless, there is still no commercially available drones that recognize the danger and ensure the safety of users.

Referring to FIG. 2, a method for predicting the safety of a terrain using 3D aerial photographing according to a preferred embodiment of the present invention will be described in detail.

A) The central server 500 sets the shooting area and the GPS coordinates (100,110) are set at the end of the shooting area so that the drones 300 do not deviate from the correct shooting area (Step S100).

At this time, the photographing area is formed as a square plane, and the GPS coordinates are set for every four vertexes of a quadrangle.

In addition, the deformation of the terrain includes at least one of the form of the ground, the shape of the mountain, the change of the position and the inclination of the specific rock or the specific building, the movement of the bridge and the bridge per hour.

Thereafter, b) photographing the terrain with the 3D camera 310 attached to the drone 300 is performed (S110).

At this time, c) a step of measuring the height of the terrain from the ground with the laser distance meter attached to the drone 300 is performed simultaneously (S120).

Thereafter, d) the terrain image photographed by the 3D camera 300 is transmitted to the central server 500 through the repeater 400, 3D-mapped, and accumulated and accumulated in each time slot (S130).

In operation S140, e) 3D mapping images cumulatively stored in the central server 500 are compared with each other at predetermined time intervals to determine whether the terrain is deformed.

If it is determined in step e that the deformed shape of the terrain is deformed to a value larger than the reference value stored in advance, the ARS alarm call or warning character may be sent to the personal portable terminal 600 of the corresponding area.

The 3D camera captures the X, Y, and Z axes, maps the captured images, and sets the three-dimensional elevation and position of the terrain.

Accordingly, the present invention can predict and warn dangerous factors such as a disaster occurring around a user by comparing 3D aerial photographing of a terrain with a dron using the image, and also can prevent collapse of buildings and bridges Can be predicted and warned in advance, thereby preventing damage to persons.

Finally, the remote device can also be implemented in the form of a remote controller, as shown in FIG. The user can sufficiently measure the environment information of the user through the contact surface between the user and the controller while the user controls the drones through the remote controller and has the wireless communication function to transmit the environment information to the drones Lt; / RTI >

The embodiments of the present invention described in the present specification and the configurations shown in the drawings relate to the most preferred embodiments of the present invention and are not intended to encompass all of the technical ideas of the present invention so that various equivalents It should be understood that water and variations may be present. Therefore, it is to be understood that the present invention is not limited to the above-described embodiments, and that various modifications may be made without departing from the spirit and scope of the invention as defined in the appended claims. , Such changes shall be within the scope of the claims set forth in the claims.

100, 110: coordinate reference point 200: GPS satellite 300: drones
310: 3D camera 400: Repeater 500: Central server 600: Personal portable terminal

Claims

a) setting a shooting area on a central server and operating a drones;
b) photographing the terrain with a 3D camera attached to the drones;
c) measuring the height of the terrain;
d) 3D mapping, displaying and accumulating terrain images photographed with the 3D camera, and cumulatively storing the terrain images by time zone; And
and e) comparing and accumulating the cumulatively stored 3D mapped images for each period of a predetermined period to determine whether the terrain is deformed. The method of claim 3,
Wherein the central server forms the photographing area as a quadrangular plane and sets GPS coordinates for each of the four vertexes of the quadrangle so that the drones travel so as not to deviate from a preset photographing area,
The step b and the step c measure the height of the terrain from the ground with the laser distance meter attached to the drone and simultaneously photograph the X, Y and Z axes of the 3D camera and map the photographed images, Set the dimension elevation and position,
Wherein the step (e) sends an ARS warning call or warning text to a plurality of personal portable terminals in the corresponding area when it is determined that the deformed shape of the terrain has been deformed to a predetermined value or more stored in advance, Water safety prediction method.

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The method according to claim 1,
Wherein the deformation of the terrain is at least one of a shape of a ground, a shape of a mountain, a change in a position and a gradient of a specific rock or a certain building, a bridge, and a bridge, and a gradient of a slope.

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