KR102072405B1 - 3d modeling system using drone - Google Patents

Abstract

The present invention relates to a 3D modeling system using a drone. More specifically, the present invention comprises: a position checking sensor installed on the front, side, and top surfaces of a terrain feature to emit a laser; a photographing means acquiring photographing information by photographing the terrain feature at the same separation distance through the position checking sensor; and a terminal unit receiving the photographing information to display the same on a screen and calculating the vertical length, horizontal length, and height of the terrain feature through the displayed photographing information to perform a 3D modeling operation of the terrain feature. Measurement values necessary for 3D modeling of the terrain feature can be acquired at low costs. It is possible to obtain three-dimensional information while maintaining the same separation distance from the terrain feature which can be easily 3D modeled by using the acquired measurement values.

Description

3D modeling system using a drone that acquires three-dimensional information while maintaining the same separation distance as the feature {3D MODELING SYSTEM USING DRONE}

The present invention relates to a three-dimensional modeling system, and more particularly, to obtain three-dimensional information while maintaining the same separation distance as the feature that can obtain the shooting information by photographing the feature having the same separation distance A three-dimensional modeling system using a drone.

Recently, the use of digital maps composed of digital data is gradually expanding. The most representative one of using a digital map is a navigation device. As technology related to digital maps develops, navigation devices continue to develop with various functions.

For example, a navigation device for notifying a driver in real time of the presence of a front curve or a lane in which the driver should travel has been developed. Furthermore, a technique for controlling a vehicle in accordance with a road slope and curvature by applying a navigation technique has also been proposed.

In general, a map is constructed by a series of processes of extracting the image image obtained by using the aircraft as an error-free orthoimage, and again correcting the color of the orthoimage, collecting it, and arranging it through error correction and final quality inspection.

However, although the image image using the aircraft may well represent the two-dimensional features of the feature, the information necessary for the three-dimensional modeling of the feature does not represent well.

Most users have no experience of seeing the features of the feature, and only have to understand the feature only by associating with the location and arrangement of the feature, so it is difficult to understand it while applying it to the actual feature.

Therefore, when creating a map with aerial imagery, there is a problem that an operator must go to the field and make an actual measurement in order to obtain three-dimensional information such as the height and the side image of the feature.

Although some systems have been developed to improve the 3D modeling of the feature, the prior art has a substantial cost burden because the acquisition information depends on the aircraft, the information is too expensive for the cost The difficulty is that even people with general knowledge of the industry cannot easily interpret information about three-dimensional modeling of features.

The matters described as the background art are only for the purpose of improving the understanding of the background of the present invention, and should not be taken as acknowledging that they correspond to the related art already known to those skilled in the art.

The present invention is to solve the above-mentioned problems of the prior art, it is possible to obtain a measurement value required for the three-dimensional modeling of the feature at a low cost, a feature that can be easily three-dimensional modeling of the feature through the obtained measurement The purpose is to provide a three-dimensional modeling system using a drone to obtain three-dimensional information while maintaining the same separation distance.

In addition, the present invention can expose the first camera to the outside only at a desired time point, three-dimensional using a drone to obtain three-dimensional information while maintaining the same separation distance as the feature that allows the shooting means to be stably placed on the ground Another purpose is to provide a modeling system.

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

Configuration of the present invention for achieving the above object, the positioning sensor for irradiating a laser is installed on the front, side and top of the feature, respectively; Photographing means for photographing the feature at the same separation distance through the positioning sensor to obtain photographing information; And a terminal unit for receiving the photographing information and displaying the information on the screen, and calculating the vertical length, the horizontal length, and the height of the feature through the displayed photographing information, respectively, so that the three-dimensional modeling of the feature can be performed. Characterized in that it comprises a.

In the three-dimensional modeling system using a drone for obtaining three-dimensional information while maintaining the same separation distance as the feature according to an embodiment of the present invention, the positioning sensor, the first position sensor is installed on the front of the feature; A second position sensor installed on an upper surface of the feature; And a third position sensor installed on the side of the feature. It is preferable to include.

In the three-dimensional modeling system using a drone for obtaining three-dimensional information while maintaining the same separation distance as the feature according to an embodiment of the present invention, the photographing means, the drone body disposed in the center; Four wings extending to the side of the drone body; Four propellers each coupled to an end of the wing; A microcomputer built in the drone body; Camera unit coupled to the lower portion of the drone body; A shock absorbing portion coupled to a lower portion of the wing to mitigate an impact when the ground is seated; And a controller for remotely controlling the drone body. It is preferable to include.

In the three-dimensional modeling system using a drone for obtaining three-dimensional information while maintaining the same separation distance as the feature according to an embodiment of the present invention, the camera unit is coupled to the bottom of the drone body, the inside of the camera case; A first camera coupled to an outer surface of the camera case and photographing a feature in a horizontal direction based on the first position sensor and the third position sensor; A second camera coupled to an inner side of the camera case and photographing a feature in a vertical direction based on a second position sensor; A first position discriminating sensor installed adjacent to the first camera and measuring a separation distance between the first camera and the first position sensor or the third position sensor; A second position discriminating sensor installed adjacent to the second camera and measuring a separation distance between the second camera and the second position sensor; A cylinder coupled to the other side of the camera case and movable up and down; And a camera opening / closing unit coupled to the inside of the camera case via a camera spring and movable left and right; It is preferable to include.

In the three-dimensional modeling system using a drone for obtaining three-dimensional information while maintaining the same separation distance as the feature according to an embodiment of the present invention, an opening is formed in the lower surface of the camera case to expose the first camera to the outside, The camera opening and closing portion is spaced apart from the opening, and the opening and closing hole is selectively formed in accordance with the movement of the camera opening and closing is formed, the side of the cylinder is formed in the form of an inverted triangle, the end of the camera opening and closing portion Correspondingly, a triangular shaped moving part is formed, and an ultrasonic launcher is coupled to the lower end of the cylinder. As the cylinder moves downward, the pressing part presses the moving part and the moving part moves to the left side, and the camera opening and closing part overcomes the elastic force of the camera spring and the left side. The opening and closing hole is arranged to overlap with the opening hole, and When the fender is moved upward, the pressing part no longer presses the moving part, and the camera opening and closing part moves to the right side by the elastic force of the camera spring, and the opening and closing hole is preferably spaced apart from the opening hole to the right side.

In the three-dimensional modeling system using a drone to obtain three-dimensional information while maintaining the same separation distance as the feature according to an embodiment of the present invention, the buffer portion is coupled to the lower portion of the wing, the buffer supporting portion is formed with a threaded buffer coupling hole ; A cushioning body portion coupled to a lower portion of the buffer support portion and having a rectangular parallelepiped shape in which a buffer through hole is formed; A buffer cover portion coupled to cover the lower surface of the buffer body portion and having a buffer head hole formed therein; And a buffer bolt that penetrates the buffer head hole and the buffer through hole, and is connected to the buffer coupling hole and connects the buffer cover part, the buffer body part, and the buffer support part into one. It includes, the buffer bolt, the bolt screw portion having the same diameter as the buffer coupling hole and the thread is formed on the outer peripheral surface; A bolt through portion having the same diameter as the buffer through hole and having no thread formed on its outer circumferential surface; And a bolt head portion having the same diameter as that of the buffer head hole and having no thread formed on the outer circumferential surface thereof. It is preferable to include.

In the three-dimensional modeling system using a drone for obtaining three-dimensional information while maintaining the same separation distance as the feature according to an embodiment of the present invention, the terminal unit expresses the shooting information transmitted as a file image through a microcomputer individually or in full screen A screen display unit displaying four limit points corresponding to the corners of the file image of the shooting information so that the shooting information is expressed in the same standard; And a content that is displayed in a bar shape so as to be rotatable or movable on the screen display, and which can calculate the horizontal length, the vertical length, and the height of the feature by contrasting the feature image of the shooting information displayed on the screen display. It is preferable to include.

According to the present invention having the above configuration, the first and second cameras provided in the photographing means have an effect of obtaining photographing information while photographing to have the same separation distance as that of the respective positioning sensors.

In addition, the present invention has the effect of recalling the shooting information in accordance with the limit point standardized on the screen display unit to calculate the vertical length, the horizontal length and the height of the feature according to the number of use of the preset content.

Furthermore, since the first camera is exposed only at a desired time point, the present invention can be prevented from being contaminated from external foreign matters. The present invention has an effect of reliably relaxing the shock by grounding the photographing means using the buffer unit.

1 is a block diagram showing the overall configuration of a three-dimensional modeling system using a drone to obtain three-dimensional information while maintaining the same separation distance as the feature according to an embodiment of the present invention.
2 is a diagram illustrating a state in which a positioning sensor is installed on a feature according to an embodiment of the present invention.
3 is a view showing a state in which the photographing means for photographing the feature according to an embodiment of the present invention.
4 is a view showing the overall appearance of the photographing means according to an embodiment of the present invention.
5 is a view showing a cross-sectional view of the camera unit according to an embodiment of the present invention.
6 is a diagram illustrating an example of photographing information acquired by a first camera and a second camera according to an embodiment of the present invention.
7 is a view showing an exploded state of each component of the buffer unit according to an embodiment of the present invention.
8 is a view showing the inside of the buffer body according to an embodiment of the present invention.
9 is a view showing a state of the terminal unit according to an embodiment of the present invention.
FIG. 10 is a diagram illustrating an exemplary working relationship of a three-dimensional modeling system using a drone to obtain stereoscopic information while maintaining the same separation distance as a feature according to an embodiment of the present invention.

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings so that those skilled in the art can easily practice the present invention. As those skilled in the art would realize, the described embodiments may be modified in various different ways, all without departing from the spirit or scope of the present invention.

In order to clearly describe the present invention, parts irrelevant to the description are omitted, and like reference numerals designate like elements throughout the specification.

In addition, the terms or words used in the specification and claims should not be construed as being limited to the common or dictionary meanings, and the inventors should properly explain the concept of terms in order to best explain their own inventions. It should be interpreted as meaning and concept corresponding to the technical idea of the present invention based on the principle that it can be defined.

1 is a block diagram showing the overall configuration of a three-dimensional modeling system using a drone to obtain three-dimensional information while maintaining the same separation distance as the feature according to an embodiment of the present invention, Figure 2 is an embodiment of the present invention FIG. 3 is a view illustrating an example of a position sensor installed on a feature, and FIG. 3 is a view illustrating a feature of photographing a feature by a photographing means according to an exemplary embodiment of the present invention.

As shown, the three-dimensional modeling system using a drone according to the present invention is a positioning sensor 100 installed on the feature (B), the photographing means 200 for photographing the feature and the terminal is made three-dimensional modeling work The unit 300 is included.

The positioning sensor 100 is installed on the front (or rear), side and top of the feature (B), respectively. Position sensor 100 is a configuration for allowing the shooting means 200 to be spaced apart in the state having the same distance as the feature (B), the first position sensor 110, the second position sensor 120 And a third position sensor 130.

At this time, each of the first to third position sensors (110, 120, 130) is irradiated with a laser having a straightness, the photographing means 200 receives the laser and the separation distance (D1, according to the received time difference) D2 and D3) are respectively calculated. The photographing means 200 preferably photographs the feature B such that the photographing means 200 has the same distance according to the separation distance. Knowing the separation distance (D1, D2, D3) and the angle value can use a trigonometric function.

In addition, the first to second position sensors 110 and 120 allow the installation manager who initially installs the feature B to install it in advance based on a drawing in which the dimension of the feature B is described. The desired operator can calculate the horizontal length, vertical length, height, and the like of the feature B without the drawing, through the photographing information, and the calculation of the width of the feature B is also possible through the calculated value.

Here, the first position sensor 110 is installed on the front surface (B1) of the feature (B), the feature (B) in the shooting information of the front surface of the feature (B) by the first camera 260 ) Both edges (e1, e2) at the top are displayed so that the length of the feature can be measured.

The second position sensor 120 is installed on the top surface of the feature (B), the edge of the top surface of the feature (B) (e1) in the shooting information of the top surface of the feature (B) by the second camera 270 , e3), including the entire end, is displayed so that the vertical length of the feature can be measured.

The third position sensor 130 is installed on either side of both sides of the feature (B), preferably in the shooting information photographed the side of the feature (B) by the first camera 260 Either one of the corners (e2) of the two sides of the upper side of the water (B) and the side end (e4: thick solid line in Fig. 2) extending downward from the corner (e2) is displayed to measure the height of the feature To be able.

At this time, the position of the third position sensor 130 is installed on any horizontal line corresponding to half of the side (B3) on the basis of the initial installation drawing of the feature (B) for ease of height measurement side (B3) Of course, it is preferable to allow the edge of the side (e4) to be displayed in one piece of shooting information.

In addition, the photographing means 200 for photographing each of the first to third position sensors 110, 120, and 130 may have the same separation distances D1, D2, and the first to third position sensors 110, 120, and 130. D3) is photographed to have the feature 320 as the content 320 under the same conditions when the screen display unit 310 is displayed on the screen.

Further, setting the separation distance (D1, D2, D3) between the photographing means 200 and the feature is preferably set on the basis of the longer length of the transverse length or the longitudinal length of the feature B.

For example, if the distance distance is set based on the shortest of the horizontal or vertical length of the feature (B), the separation distance becomes narrower, which means that the long side is taken at the time of the photographing means 200. Since the corresponding edges are not displayed in the photographing information, it is difficult to precisely measure the length with the screen display 310.

Therefore, by setting the separation distance based on the long side, that is, the location where both sides can be photographed with the shooting means 200, as well as ensuring a stable separation distance, precise three-dimensional modeling of the feature (B) This has an easy advantage.

The photographing means 200 photographs the feature B with a camera by a remote of a wireless communication network at a predetermined distance based on the position sensor 100 described above, and the photographed information is a terminal part as an image. It is a configuration for passing to 300.

4 is a view showing the overall appearance of the photographing means according to an embodiment of the present invention.

As shown, the photographing means 200 according to the present invention, the drone main body 210 is disposed in the center, four wings 220 extending from the side of the drone main body and four are respectively coupled to the wing end It basically includes a propeller 230.

As the propeller 230 operates, the photographing means 200 may move up or down, and move to a desired point. The microcomputer 240 is built in the drone main body 210 to control the propeller 230 or the camera.

The propeller 230 is disposed in the center is coupled to surround the center portion 231 and the center portion connected to the rotary motor (not shown) is receiving a rotational force from the center portion and the wing blade portion is coupled to the outer blade 234 on the outside And 232.

The vane rotating part 232 is formed in a ring shape, a plurality of 'T'-shaped melting part 233 is protruded inside the vane rotating part 232. The center portion 231 has a groove formed in a corresponding shape so that the 'T'-shaped melting portion 233 can be inserted, and as the melting portion 233 is engaged with the groove, the rotational force of the rotating motor is rotated by the blade rotating portion 232. Is delivered.

In this case, it is preferable that the melting part 233 is made of a material having a lower melting point than the center part 231 and the wing rotation part 232. That is, when foreign matter is stuck in the propeller 230 and the propeller does not rotate properly and heat is generated due to overcurrent, the melting point of the melting point 233 having a low melting point is first melted and broken between the rotating motor and the blade rotating part 232. Can be.

The melting part 233 may be made of a polypropylene material, and the center part 231 and the wing rotating part 232 may be made of a polyamide material. The polypropylene material has a melting point about 80 ° C. lower than that of the polyamide material.

Accordingly, the expensive rotary motor is not damaged by heat, and the user can reuse the propeller 230 by replacing only the blade rotating part 232 and the rotating blade 234 part.

The camera unit 250 is coupled to the lower portion of the drone body 210, and the buffer unit 280 is coupled to the lower portion of the wing unit 220. The buffer unit 280 serves to alleviate the impact applied from the ground when the photographing means 200 is seated on the ground.

The microcomputer 240 is provided in the drone main body 210, and is controlled by a controller 290 using a radio frequency signal of 1 GHz band and remotely controlled by a wireless communication network including an SSB and FM scheme. ) And the second camera 270 to transmit each photographing information to the terminal 300 or the controller 290.

The controller 290 remotely controls the drone main body 210, but photographs the feature B with the first camera 260 and the second camera 270, and the first position discrimination sensor 261 and the second. A mobile terminal such as a smartphone is used so that the separation distance transmitted from the position discriminating sensor 271 can be displayed numerically.

At this time, the controller 290 used as a smart phone is controlled remotely using a downloadable app (APP) and at the same time to store the respective shooting information transmitted as a file from the microcomputer 240 to the terminal unit by preview The feature image before transmission to the 300 can be confirmed.

5 is a view showing a cross-sectional view of the camera unit according to an embodiment of the present invention, Figure 6 is a view showing an example of the shooting information obtained by the first camera and the second camera according to an embodiment of the present invention. to be.

As illustrated, the camera unit 250 includes a camera case 251, a first camera 260, a second camera 270, a first position discrimination sensor 261, a second position discrimination sensor 271, It comprises a cylinder 252 and the camera opening and closing portion 254.

The camera case 251 is coupled to the lower portion of the drone main body 210, the interior is made of a cylindrical or square cylindrical shape and the like.

The first camera 260 is formed on the outer surface of the camera case 251 to photograph the first position sensor 110 and the third position sensor 130 in the horizontal direction. At this time, the first camera 260 is a camera case 251, that is, the separation distance (D1, D3) between the shooting position of the first camera 260 and the first position sensor 110 or the third position sensor 130. A first position discriminating sensor 261 is provided to measure accurate photographing information.

The photographing information of the feature B photographed by the first camera 260 around the first position sensor 110 becomes the first photographing information M1, and the photographing information of the third position sensor 130 It is preferable that the photographing information of the feature B photographed by the one camera 260 becomes the third photographing information M3 (see FIG. 6).

In addition, the first position discrimination sensor 261 receives the laser beam irradiated from the first position sensor 110 or the third position sensor 130 and calculates a time difference to determine the feature B and the first position discrimination sensor ( 261) to calculate the distance, and the calculated distance, that is, the distance (D1, D3) is displayed on the controller 290 with a numerical value by the microcomputer 240, so that the operator easily the feature (B) and the shooting means Make sure to check the distance between 200.

The second position discrimination sensor 271, which will be described later, also calculates the separation distance D2 between the second camera 270 and the second position sensor 120 in the same manner as described above, but the calculated value is controlled by the microcomputer 240. By transmitting to 290, the operator can check the shooting distance is taken.

The second camera 270 is coupled to an inner side of the camera case 251 and disposed in the vertical direction to photograph the top surface of the feature B. FIG. The second camera 270 acquires second photographing information M2.

In this case, the second camera 270 is provided with a second position discrimination sensor 271 for measuring the separation distance D2 between the photographing position of the second camera 270 and the second position sensor 120 to provide precise photographing information. To be acquired.

Each of the first to third photographing information M1, M2, and M3 photographed by the first camera 260 and the second camera 270 can be recalled on the screen through the screen display 310. It is preferable to be stored in the microcomputer 240 as an image file such as BMP, JPG, TIFF, etc. having a dimensional quadrangular shape so that it can be recalled in accordance with the limit point 311 on the screen display 310.

The cylinder 252 is coupled to the other inner side of the camera case 251, and can be moved up and down. An ultrasonic hole is formed in the lower part of the camera case 251, and the ultrasonic launcher 253 is coupled to the lower end of the cylinder 252, so that the ultrasonic launcher 253 is the camera case 251 when the cylinder 252 is moved downward. ), The ultrasonic launcher 253 may be stored inside the camera case 251 when the cylinder 252 is moved upward.

The ultrasonic launcher 253 may generate a frequency relatively higher than the audible frequency of a person to prevent the interference of a bird, such as a bird, close to the recording means 200, and thus to accurately capture the feature without covering the feature Can be.

 The camera opening and closing part 254 is coupled to the left and right to move through the camera spring 255 in the camera case 251. The opening and closing hole 254a is drilled in the central portion of the camera opening and closing part 254.

An opening hole 251a for exposing the second camera 270 to the outside is formed at a lower portion of the camera case 251 to correspond to the position of the second camera 270. In accordance with the movement of the) may be spaced apart or overlapped from the opening (251a).

That is, when the camera opening and closing part 254 is moved to the right side by the elastic force of the camera spring 255, the opening and closing hole 254a is spaced to the right from the opening hole 251a, whereby the camera opening and closing part 254 is Cover the opening hole 251a so that the second camera 270 is not exposed to the outside.

When the camera opening / closing part 254 overcomes the elastic force of the camera spring 255 and moves to the left side, the opening / closing hole 254a is disposed to overlap with the opening hole 251a, whereby the second camera 270 opens and closes the opening hole 254a. ) And may be exposed to the outside through the opening hole 251a.

In this case, an inverted triangular pressing portion 252a is formed at the side of the cylinder 252, and a triangular moving portion 254b is formed at the right end of the camera opening / closing portion 254 corresponding to the pressing portion 252a. do.

As the cylinder 252 is moved downward, the pressing part 252a presses the moving part 254b to move the moving part 254b to the left side, and the camera opening / closing part 254 overcomes the elastic force of the camera spring 255. You can move to the left.

When the cylinder 252 is moved upward, the pressing part 252a no longer presses the moving part 254b, so that the camera opening / closing part 254 naturally moves to the right by the elastic force of the camera spring 255.

As described above, the present invention may allow the second camera to be exposed only at the point where the user wants to expose the second camera 270, thereby preventing the second camera from being exposed to external foreign matters, and extending the life of the second camera. I can increase it more.

7 is a view illustrating an exploded state of each component of the buffer unit according to an embodiment of the present invention.

As shown, the buffer portion 280 includes a buffer support portion 281, a buffer body portion 282, a buffer cover portion 283 and a buffer bolt 284.

The buffer support 281 is vertically coupled to the lower portion of the wing 220, the buffer coupling hole (281a) is formed in the center. A plurality of threads are formed in the inner diameter of the buffer coupling hole 281a along the longitudinal direction.

In the illustrated embodiment, the buffer support 281 is formed in a cylindrical shape, but is not limited thereto, and may be formed in various shapes such as a rectangular parallelepiped. The buffer support part 281 has a length such that when the photographing means 200 is set on the ground, parts such as the camera unit 250 do not touch the ground.

The buffer body portion 282 is coupled to the lower portion of the buffer support portion 281, the buffer through-hole 282a is formed in the center. The inner diameter of the buffer through hole 282a differs from the buffer coupling hole 281a in that no thread is formed.

The buffer main body 282 is formed in a rectangular parallelepiped shape, and is made of a material having elasticity to prevent shock or vibration from being applied to the recording means 200 from the ground when the shooting means 200 falls or falls due to a failure. .

The buffer cover portion 283 is coupled to cover the lower surface of the buffer body portion 282, and a buffer head hole 283a is formed at the center thereof. Similarly to the buffer through-hole 282a, no thread is formed in the inner diameter of the buffer head hole 283a.

The buffer cover portion 283 is formed to have a cross-section of the 'c' shape corresponding to the shape of the lower surface of the buffer body portion 282. The shock absorbing cover part 283 prevents the shock absorbing body part 282 from being easily contacted with the outside.

In other words, the buffer cover 283 is made of a material having a relatively high hardness than the buffer body 282. The buffer cover part 283 may be made of various materials such as plastic or metal of high hardness.

As described above, the shock absorbing body 282 performs a function of buffering an external shock, and if the hardness is too high, the shock absorbing function can hardly be performed, and if the hardness is too low, the shock absorbing body part 282 may be easily worn. . That is, it is very difficult to satisfy both performances at once.

In the present invention, by improving the problem, the buffer body 282 is composed of a material that is as smooth and elastic as possible to maximize the cushioning function, the buffer cover 283 is made of a material of high hardness to prevent wear, Both functions can be satisfied at the same time.

The buffer bolt 284 is fastened to the buffer coupling hole 281a through the buffer head hole 283a and the buffer through hole 282a, and the buffer cover portion 283, the buffer body portion 282 and the buffer support portion 281. )) Into one.

Specifically, the buffer bolt 284 has the same diameter as the buffer coupling hole (281a) and has the same diameter as the bolt screw portion (284a), the buffer through-hole 282a, the thread is formed on the outer peripheral surface and the thread is not formed on the outer peripheral surface And a bolt head portion 284c having the same diameter as the bolt through portion 284b and the buffer head hole 283a and having no thread formed on its outer circumferential surface.

The length of the bolt through portion 284b is formed to be the same as the height of the buffer through hole 282a, so that the buffer body portion 282 may not be compressed by the buffer bolt 284 to maintain hardness. In addition, the length of the bolt head portion 284c is formed to be equal to the height of the buffer head hole 283a so that the bolt head portion 284c does not protrude out of the buffer head hole 283a.

8 is a view showing the internal appearance of the buffer body according to an embodiment of the present invention.

As shown, the buffer body portion 282 is formed in a rectangular parallelepiped shape as a whole, and a pair of permanent magnet plates 282b are coupled to both sides. The buffer cover portion 283 coupled to the lower portion of the buffer body portion 282 is preferably made of a magnetic material such as metal. The buffer cover portion 283 may be naturally seated on the lower surface of the buffer body portion 282 by the permanent magnet plate 282b, and may have a fixed force to some extent.

Specifically, the buffer body portion 282 is an elastic portion 282c disposed to be orthogonal to the pair of permanent magnet plates 282b, the first reinforcing portion 282d, the first reinforcement portion 282d disposed on the lower surface of the elastic portion parallel to the elastic portion A second reinforcing part 282e disposed on the lower surface of the reinforcing part to be parallel to the first reinforcing part, and a coating part 282f disposed on the lower surface of the second reinforcing part to be parallel to the second reinforcing part may be included.

The elastic portion 282c is to give an overall elastic force to the buffer body 282 to perform a buffering action. The elastic part 282c is 10 to 15 parts by weight of thermoplastic polyether ester elastomer (TPEE), azodicarbonamide (100 parts by weight of a polymer formed by polymerizing 20 to 30 parts by weight of vinyl acetate monomer with respect to 100 parts by weight of ethylene) It is preferred to include 8 to 10 parts by weight of azodicarbonamide) and 4 to 5 parts by weight of glyoxal.

If the vinyl acetate monomer constituting the polymer is less than 20 parts by weight, the crystallinity is excessively high and the hardness of the elastic part is too high. If the vinyl acetate monomer is more than 30 parts by weight, the elasticity is too high, and the elastic part is not in place and can be slid and folded. Can be.

The thermoplastic polyether ester elastomer (TPEE) adds hardness to the elastic part. If the thermoplastic polyether ester elastomer is less than 10 parts by weight, the effect of reinforcing the hardness is insignificant, and if the thermoplastic polyether ester elastomer is more than 15 parts by weight, the melt is melted. There is a problem that the index is lowered and the workability is lowered.

Azodicarbonamide (azodicarbonamide) is to impart an additional elastic force to the elastic portion, and when the azodicarbonamide is less than 8 parts by weight, the effect of adding elastic force is insignificant, and when the azodicarbonamide is more than 10 parts by weight, it further affects the elastic force. Could not do so, worsening price competitiveness.

Glyoxal is azodicarbonamide that traps gas generated above a certain temperature and imparts high temperature viscoelasticity to the elastic part. If glyoxal is less than 4 parts by weight, the mechanical properties of the elastic part may be insufficient. If it is more than the weight part, the foaming pressure may be excessively large, which may cause the elastic part to burst.

The first reinforcing portion 282d is disposed on the lower surface of the elastic portion 282c to prevent the elastic portion from being torn and broken. The first reinforcing part 282d is formed in a net shape so that the elastic part is not easily torn even when a force is applied to any part of the elastic part.

The second reinforcing portion 282e is disposed on the lower surface of the first reinforcing portion 282d to allow the elastic portion to move flexibly. The second reinforcement part 282e is formed of a fabric including glass fiber or carbon fiber.

The coating part 282f is disposed on the bottom surface of the second reinforcing part 282e and includes a buffer body part 282 including an elastic part 282c, a first reinforcing part 282d, and a second reinforcing part 282e. Function to protect

The coating part 282f preferably includes 25 to 40 parts by weight of styrene resin, 10 to 25 parts by weight of vinyl resin, and 20 to 30 parts by weight of paraffin based on 100 parts by weight of polyurethane, and prevents the elastic part from getting wet with water. In addition to the waterproof function may be provided with a wear-resistant function to prevent the elastic portion is worn.

9 is a view showing a state of the terminal unit according to an embodiment of the present invention, Figure 10 is a three-dimensional using a drone to obtain three-dimensional information while maintaining the same separation distance as the feature according to an embodiment of the present invention Illustrates the working relationship of the modeling system by way of example.

As shown in the drawing, the terminal unit 300 receives each photographing information photographed by the photographing means 200 and outputs at least one or more screens so that an operator can visually identify and perform a length measurement operation. The screen display unit 310 and the content 320 may be configured to calculate the horizontal length, the vertical length, and the height of the feature B through the screen output photographing information.

Here, the screen display unit 310 is made of a conventional monitor that the operator can display the shooting information transmitted through the microcomputer 240 or the controller 290 with the naked eye, but the display information to be displayed on the screen display unit 310 The limit point 311 is displayed so that can be displayed to have the same specification.

In this case, the limit points 311 are expressed in four places on the screen display 310 so that each corner of the first to third photographing information M1, M2, and M3 transmitted as an image file having a rectangular shape can be located. It is desirable to be.

The content 320 is provided in a bar shape having different preset length values, but contrasts the content 320 with the feature image on the photographing information expressed on the screen display unit 310, so that the length and width of the feature B are vertical. Allows you to calculate length and height.

In this case, the content 320 is formed to be rotatable or movable on the screen display unit 310, and the length value of one content 320 is preferably set in advance to have a length of at least 1 meter.

For example, as shown in FIG. 10, when the operator wants to calculate the height of the feature B through the third photographing information M3 photographing the side of the feature B on the screen display 310, On the screen display unit 310, each corner of the third shooting information (M3), which is called as an image file, is arranged so as to coincide with four limit points (311), and the topography of the content 320 captured by the shooting information. It is aligned with the edge e2 'on the water image, but is vertically aligned with the shape of the tip e4' on the feature image extending vertically to connect with the edge e2 '.

Then, if the length of the content 320 is shorter than the vertical length of the end e4 'on the feature image, the length of the end e4' and the content 320 may be changed through the content 320 having another preset length value. If the length is the same and the content length 320 is the same as the vertical length of the end e4 'when three pieces of content 320 are used, i.e., three pieces of content 320 set to a length value of 5 meters are used. The length is 15 meters, and according to the above description, the third photographing information M3 is photographed at a position corresponding to the side half of the feature B, and is simply doubled to make the entire feature B. The height is calculated to be 30 meters.

In addition, it is possible to obtain information for creating three-dimensional modeling by calculating the horizontal length and the vertical length of the feature B through the first and second photographing information M1 and M2 in this manner.

In the three-dimensional modeling system according to the present invention having such a configuration, the first camera 260 and the second camera 270, the front and horizontal length for measuring the vertical length of the feature (B) different from the conventional Acquire photographing information by photographing the upper surface for measurement and the side for measuring the height to have the same separation distance by the positioning sensor 100, the first position discrimination sensor 261, and the second position discrimination sensor 271, respectively. The photographing information is called up to match the limit point 311 standardized on the screen display unit 310, and the vertical length, horizontal length, and height of the feature B are calculated according to the number of preset contents 320 used. By doing so, it is possible to obtain the information of the feature (B) required for the three-dimensional modeling.

The present invention described above is not limited to the above-described embodiment and the accompanying drawings, and it is common in the art that various substitutions, modifications, and changes can be made without departing from the technical spirit of the present invention. It will be apparent to those who have the knowledge of.

100: position sensor 110: first position sensor 120: second position sensor
130: third position sensor 200: recording means 210: drone main body
220: wing portion 230: propeller 231: center portion
232: wing rotating part 233: melting part 234: rotary wing
240: microcomputer 250: camera unit 251: camera case
251a: Opening hole 252: Cylinder 252a: Pressing part
253: ultrasonic launcher 254: camera opening and closing part 254a: opening and closing hole
254b: moving unit 255: camera spring 260: first camera
261: first position discrimination sensor 270: second camera 271: second position discrimination sensor
280: buffer portion 281: buffer support portion 281a: buffer coupling hole
282: buffer body portion 282a: buffer through hole 282b: permanent magnet plate
282c: elastic portion 282d: first reinforcement portion 282e: second reinforcement portion
282f: coating part 283: buffer cover part 283a: buffer head hole
284: Shock Absorbing Bolt 284a: Bolt Screw Section 284b: Bolt Through Section
284c: bolt head portion 290: controller 300: terminal portion
310: screen display unit 311: limit point 320: content

Claims (1)

Position sensors for irradiating the laser is installed on the front, side and top of the feature, respectively; Photographing means for photographing a feature to obtain photographing information; And a terminal unit for receiving the photographing information and displaying the information on the screen, and calculating the vertical length, the horizontal length, and the height of the feature through the displayed photographing information, respectively, so that the three-dimensional modeling of the feature can be performed. Including but not limited to:
The position sensor,
A first position sensor installed in front of the feature; A second position sensor installed on an upper surface of the feature; And a third position sensor installed on the side of the feature. Including,
The photographing means,
A drone body disposed at the center; Four wings extending to the side of the drone body; Four propellers each coupled to an end of the wing; A microcomputer built in the drone body; Camera unit coupled to the lower portion of the drone body; A shock absorbing portion coupled to a lower portion of the wing to mitigate an impact when the ground is seated; And a controller for remotely controlling the drone body. Including;
The camera unit,
A camera case coupled to the bottom of the drone body and having an empty interior; A first camera coupled to an outer surface of the camera case and photographing a feature in a horizontal direction based on the first position sensor and the third position sensor; A second camera coupled to an inner side of the camera case and photographing a feature in a vertical direction based on a second position sensor; A first position discriminating sensor installed adjacent to the first camera and measuring a separation distance D1 between the first camera and the first position sensor or a separation distance D3 between the first camera and the third position sensor; A second position discriminating sensor installed adjacent to the second camera and measuring a separation distance D2 between the second camera and the second position sensor; A cylinder coupled to the other side of the camera case and movable up and down; And a camera opening / closing unit coupled to the inside of the camera case via a camera spring and movable left and right; Including,
Opening holes are formed in the lower surface of the camera case to expose the first camera to the outside, and opening and closing holes are selectively formed in the camera opening and closing portion, while being spaced apart from the opening hole and selectively opening and overlapping with the movement of the camera opening and closing portion. An inverted triangular pressing part is formed at the side of the cylinder, and a moving part having a triangular shape corresponding to the pressing part is formed at the end of the camera opening and closing part, and an ultrasonic launcher is coupled to the lower end of the cylinder.
As the cylinder is moved downward, the pressing part presses the moving part to move the moving part to the left side, the camera opening and closing part overcomes the elastic force of the camera spring and is moved to the left side so that the opening and closing hole is overlapped with the opening hole. The pressing part no longer presses the moving part so that the camera opening and closing part moves to the right side by the elastic force of the camera spring, and the opening and closing hole is spaced apart to the right from the opening hole.
The buffer part,
A buffer support part coupled to a lower part of the wing part and having a buffer coupling hole formed with a thread; A cushioning body portion coupled to a lower portion of the buffer support portion and having a rectangular parallelepiped shape in which a buffer through hole is formed; A buffer cover portion coupled to cover the lower surface of the buffer body portion and having a buffer head hole formed therein; And a buffer bolt that penetrates the buffer head hole and the buffer through hole, and is connected to the buffer coupling hole and connects the buffer cover part, the buffer body part, and the buffer support part into one. Including;
The buffer bolt,
A bolt screw part having the same diameter as the buffer coupling hole and having a thread formed on an outer circumferential surface thereof; A bolt through portion having the same diameter as the buffer through hole; And a bolt head portion having the same diameter as the buffer head hole. Including,
The terminal unit,
Screen that displays four or more limit points that coincide with the edge of the file image of the shooting information so that the shooting information transmitted as a file image can be expressed in individual or all screens through the microcomputer. A display unit; And a content that is displayed in a bar shape so as to be rotatable or movable on the screen display, and which can calculate the horizontal length, the vertical length, and the height of the feature by contrasting the feature image of the shooting information displayed on the screen display. 3D modeling system using a drone to obtain three-dimensional information while maintaining the same separation distance as the feature, characterized in that it comprises a.

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