KR102111778B1 - Level maintaining apparatus - Google Patents

Abstract

The present invention relates to a horizontal holding device, and includes a rotating body capable of supporting an object, and a supporting portion surrounding a portion of the rotating body, wherein the rotating body can rotate based on a virtual center point in the supporting portion. .

Description

Level maintaining apparatus

The present invention relates to a horizontal holding device.

Light detection and ranging (LIDAR) is a radar to measure the presence and movement of dust, smoke, aerosols, cloud particles, etc., along with wind information, and uses visible or infrared laser rays. . The pulse of laser light emitted from the ground lidar is backscattered by floating particles, and the scattered pulse is received at the ground station. A radar using laser light as electromagnetic waves is called a ground rider.

Ground riders have superior bearing resolution and distance resolution compared to conventional radar. The laser light detects the received light of a different wavelength from the transmitted light by Raman-Shift of the molecule of the target object and the laser Doppler radar using the Doppler effect that is greater than that of the microwave. , Laser raman radar, etc., which simultaneously perform analysis of atmospheric components from intensity, and the like.

The Doppler ground rider measures the shift of the wavelength (or frequency) caused by the Doppler effect to measure the wind speed. In order to acquire wind data, a weather tower equipped with a wind sensor is generally used, but there is a problem that a weather tower cannot be installed depending on the terrain, so a ground rider installed on the ground instead of the weather tower is used. Wind data is being acquired.

A terrestrial lidar survey is a survey that acquires three-dimensional position information by using interference or reflection of a laser projected on an object surface, and forms a point cloud in the form of point data for an object to create a three-dimensional Construct geospatial coordinates. Scan density is an important factor that greatly affects the scan time, accuracy and usability of data, and the capacity and quality of data. It separates each scan area and changes the point density according to the required target precision. Scanning is performed.

Terrestrial lidar surveying means the acquisition of 3D point cloud data of the object after setting the point density of the target area, and when obtaining the point cloud data of the object, the ground lidar is not generated due to obstacles such as obstacles and scan plans. A survey plan should be established.

Terrestrial lidar surveying is not only difficult to acquire through existing ground surveying or aerial surveying techniques, but also the construction of precise topographic data, as well as three-dimensional modeling in cadastral surveying, civil engineering, architecture, topography surveying, natural disasters, scientific investigations, and plants. High-precision data acquisition is possible, and by providing high accuracy of acquired data, safety management such as coastal erosion surveying, slope management in civil engineering, accurate shape recording and preservation of cultural properties, precise three-dimensional modeling for protection and management of cultural properties, roads, dams Applications such as precision measurement of structures such as bridges, tunnels, and precise safety diagnosis of plants are gradually diversifying.

When installing such a ground lidar on an inclined ground, it is important to install it horizontally and vertically with respect to the direction of gravity without tilting along the slope of the ground for precision.

Registered Patent No. 10-1479927 (December 31, 2014) Utility Model Registration No. 20-0116521 (Jan. 15, 1998)

The present invention provides a horizontal holding device capable of maintaining a horizontal and vertical state of the ground lidar without being restricted by the installation terrain when installing the ground lidar.

A horizontal holding device according to an embodiment of the present invention includes a rotating body capable of supporting an object, and a supporting portion surrounding a portion of the rotating body, wherein the rotating body rotates based on a virtual center point in the supporting portion can do.

The horizontal holding device may further include a plurality of rotating bodies disposed between the supporting portion and the rotating body and supporting the rotating body to rotate.

Rolling friction may occur between the rotating body and the plurality of rotating bodies.

The horizontal holding device may further include a table connected to the rotating body and on which the object can be placed.

The table, the object may be placed and may include a table body connected to the rotating body.

The table is arranged along the periphery of the table body and may further include a plurality of brackets for fixing the object.

The horizontal holding device may further include a gap adjusting part disposed on the bracket to be in contact with the object.

The gap adjusting part may include a control member fastened to the bracket and a plate located between the bracket and the object and connected to the end of the adjusting member, and the plate may be moved by adjusting the adjusting member.

The horizontal holding device may be disposed along the outer periphery of the table, and may further include a support part supporting the table and setting the rotation of the rotating body.

The support part may include a support drive part arranged along an edge of the table and one end hinged to the table to support the table.

The support part may further include a base that supports the lower end of the support part and the other end of the support drive part is hinged.

The support driving part may include an actuator, a first block hinge-connecting the actuator and the base, and a second block hinge-connecting the actuator and the table.

The second block may include a block body connected to the table and having a placement space, and a rotation block arranged to rotate in the placement space and connected to the actuator.

According to an embodiment of the present invention, the table body is moved relative to the virtual center of the rotating body by the rod operation of the actuators while the base of the horizontal holding device is installed on the ground so that the table body is not restricted by the inclination of the ground and the direction of gravity It can maintain a horizontal state parallel to the vertical direction. In addition, since the actuators support the table body in a horizontal state, the table body can safely maintain the horizontal state. Accordingly, the ground lidar placed on the table body horizontally of the table body can also maintain a vertical state parallel to the direction perpendicular to the gravity direction, so that the object can accurately measure the measurement object.

According to an embodiment of the present invention, since the table body adjusts the horizontal state by the operation of the actuator, the work efficiency of the worker is improved, and even when an object is placed on the table body, the horizontal state of the table body can be adjusted to increase user usability. have.

1 is a perspective view showing a horizontal holding device according to an embodiment of the present invention.
Figure 2 is a front view of Figure 1;
Figure 3 is an enlarged view showing the gap control unit of Figure 1;
Figure 4 is a cross-sectional view showing the rotating body and the support of Figure 2;
5 is an enlarged view of part A of FIG. 4.
Figure 6 is a schematic diagram showing the connection state of the support and the table of Figure 2;
7 is an enlarged view of the support of FIG. 6.
8 銀 The state of use of the horizontal holding device of FIG.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings so that those skilled in the art to which the present invention pertains can easily practice. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. The same reference numerals are used for similar parts throughout the specification.

Then, a horizontal holding device according to an embodiment of the present invention will be described with reference to FIGS. 1 and 2.

1 is a perspective view showing a horizontal holding device according to an embodiment of the present invention, and FIG. 2 is a front view of FIG. 1.

1 and 2, the horizontal holding device 100 according to the present embodiment includes a rotating body 10 and a supporting portion 20, and the object (1) is not restricted by the terrain when the object 1 is installed. ) To maintain the horizontal state with the direction of gravity (Gr) and the direction of vertical (H). The object 1 may be a ground lidar.

The rotating body 10 is formed in a hemisphere shape, and the upper surface is formed in a plane. The rotating body 10 can support the ground rider

The support portion 20 includes a receiving member 21, a leg member 22 and a panel member 23 and supports the rotating body 10 to rotate.

The receiving member 21 is formed to correspond to the rotating body 10, and a receiving space 211 for receiving a portion of the rotating body 10 is formed. The receiving space 211 is formed by recessing in a spherical shape in the direction of the lower surface of the receiving member 21. The receiving member 21 surrounds the rotating body 10 2/4. The rotating body 10 may move relative to the virtual center C in the accommodation space 211. The rotational body 10 may maintain its upper surface in a horizontal direction with respect to the direction of gravity (Gr) and the direction (H) as it moves.

The leg member 22 has a predetermined length and the upper end is connected to the lower surface of the receiving member 21. The leg members 22 are arranged along the circumferential direction on the outer circumference of the receiving member 21. The number of leg members 22 may vary depending on the design of the horizontal holding device 100. With the support of the leg member 22, the receiving member 21 can maintain a state spaced from the ground.

The panel member 23 has a predetermined width and the lower end of the leg member 22 is connected. The panel member 23 supports the leg members 22. However, the panel member 23 may be omitted.

The table 40 includes a table body 41 and a bracket 42, and is disposed on the upper surface of the rotating body 10, and a gas phase lidar can be placed on the upper surface.

The table body 41 has a predetermined width and may be placed on the top surface with a ground lidar. The width of the table body 41 may vary according to the ground lidar standard. The lower surface of the table body 41 is coupled to the upper surface of the rotating body 10. The table body 41 may move along the rotating body 10, and the upper surface of the rotating body 10 and the upper surface of the table body 41 are parallel. Accordingly, if the top surface of the rotating body 10 maintains a horizontal state, the top surface of the table body 41 can also maintain a state parallel to the direction perpendicular to the gravity direction.

The brackets 42 are arranged at intervals along the circumference of the table body 41. The lower portion of the bracket 42 is engaged with the table body 41 and the upper portion protrudes to the top of the table body 41. The bracket 42 is fixed to prevent the ground lidar from moving on the table body 41 in contact with the ground lidar. However, the bracket 42 can be omitted. In this case, the ground lidar may be directly fixed to the upper surface of the table body 41. It does not limit the fixed way of ground riders.

Referring to FIG. 3 further, the table 40 may further include a gap adjusting unit 43.

The gap adjusting portion 43 includes a plate 432 and an adjusting member 431 and is disposed for each bracket 42 to fix the ground lidar placed on the upper surface of the table body 41.

The plate 432 has a predetermined width and is located between the bracket 42 and the ground lidar. The inner surface of the plate 432 may contact the outer circumference of the ground lidar, and the outer surface faces the inner surface of the bracket 42. On the inner surface of the plate 432, a rubber pad or sponge or the like for preventing damage to the outer circumference of the ground lidar may be disposed.

The adjustment member 431 is fastened to the bracket 42 and its end is connected to the outer surface of the plate 432. The adjustment member 431 and the plate 432 are hinged with a gap. When the adjusting member 431 is fastened by play, the plate 432 may move linearly without rotating along the adjusting member 431. Depending on the fastening direction of the adjusting member 431, the plate 432 may move in the direction of the ground lidar or the bracket 42 in the direction of the inner surface. By rotating the adjusting member 431, the inner surface of the plate 432 comes into contact with the outer circumference of the ground lidar, so that the stab limb can be fixed to the upper surface of the table body 41.

4 and 5, the horizontal holding device 100 may further include a rotating body 30.

The rotating body 30 is formed in a ball shape and is disposed in plural between the periphery of the receiving space 211 and the outer circumference of the rotating body 10. A part of the rotating body 30 is accommodated so as to be rotatable in the receiving member 21 and can be rotated by an external force. The rotating body 30 is accommodated about 3/5 so that the rotating body 30 does not deviate from the receiving member 21. The degree of accommodation of the rotating body 30 may vary depending on the diameter of the rotating body 30. The rotating body 30 is in contact with the outer circumference of the rotating body 10 and supports the rotating body 10 to rotate. The outer circumference of the rotating body 10 by the rotating body 30 is spaced apart from the circumference of the receiving space 211. When the rotating body 10 moves, rolling friction occurs between the rotating body 10 and the rotating body 30 so that the rotating body 10 can move freely in the receiving space 211 and maintain a horizontal level. The rotating body 30 may be made of metal.

However, if such a rotating body 30 is omitted, the outer circumference of the rotating body 10 may rotate in contact with the circumference of the receiving space 211, and at this time, rotate so that the movement of the rotating body 10 is smoothly performed. A lubrication layer (not shown) may be formed between the outer circumference of the main body 10 and the periphery of the accommodation space 211.

6 and 7, the horizontal holding device 100 may further include a support portion 70, and the support portion 70 supports the table 40 so that the table 40 can maintain a horizontal state. .

The support part 70 includes a support drive part 71 and a base 72.

The base 72 has a predetermined width. The width of the base 72 is formed wider than the width of the panel member 23, and the panel member 23 is placed at the center of the upper surface of the base 72. The panel member 23 and the base 72 are detachably connected.

The support driving units 71 are positioned between the table body 41 and the base 72 and are arranged at a plurality of intervals along the edge of the table body 41. The support drive unit 71 includes an actuator 711, a first block 712, and a second block 713 and supports the table 40.

The first block 712 is disposed on the lower surface of the table body 41, and the second block 713 is disposed on the upper surface of the base 72. The first block 712 is disposed between adjacent vertices of the table body 41, and the second block 713 is disposed close to the vertices of the base 72. The number of the first block 712 and the second block 713 are the same.

The first block 712 is arranged to be rotated on the block body 712a and the arrangement space 712b where the top surface is coupled to the bottom surface of the table body 41 and an arrangement space 712b is opened in the direction from the inside to the bottom. It includes a rotating block (712c). The rotating block 712c is formed in a spherical shape.

The actuator 711 may use oil as a working fluid. However, the actuator can use compressed air as the working fluid.

The rod end of the actuator 711 is hinged to the rotating block 712c, and the housing in which the rod is accommodated is hinged to the second block 713. Depending on the movement of the rotating body 10, that is, the movement of the table body 41, the rod may be drawn into or out of the housing. During rod operation, one end and the other end of the actuator 711 may be moved by hinges of the first block 712 and the second block 713. The actuator 711 is composed of two sets of one and is disposed along the outer periphery of the base 72. The actuator 711 supports the table body 41 maintaining a horizontal state, and fixes the table body 41 so that it does not move.

In the above description, the table body 41 moves and the actuator 711 supports the table body 41. However, as the table body 41 moves according to the movement of the rod, the horizontal state of the top surface of the table body 41 can be adjusted. have.

Meanwhile, the horizontal holding device 100 according to the present exemplary embodiment may include a sensor (not shown). The sensor is installed on the table to measure horizontal, acceleration, vibration, and shock. Since the detailed configuration of the sensor is the same as those of the known configuration, detailed description is omitted.

Next, the operation of the horizontal holding device described above will be described with reference to FIG. 8 further.

First, the ground G in the position where the ground lidar 1 is installed is arranged, the horizontal holding device 100 is arranged, and the base 72 is fixed to the ground so that the horizontal holding device 100 does not move. Then, a measuring device (not shown) such as a horizontal system is disposed on the upper surface of the table body 41.

The horizontal state of the table body 41 is adjusted by the rod movement of the actuators 711, and the table body 41 is supported. When the rod moves, the table body 41 moves while rolling and rolling friction with respect to the virtual center C. In addition, when the rod moves, the actuator 711 may move based on hinges connected to the first block 712 and the second block 713.

That is, when the rod of the actuators 711 moves, the measuring mechanism is checked to adjust the movement of the table body 41 so that the upper surface of the table body 41 is parallel to the vertical (H) direction with respect to the gravitational direction Gr.

When the upper surface of the table body 41 is maintained in a horizontal state, the ground lidar is disposed on the upper surface of the table body 41 and the ground lidar is fixed to the table body 41 by using the spacer 43. .

However, it is possible to adjust the level of the table body 41 by operating the actuator 711 while the ground lidar is placed on the top surface of the table body 41.

In the above description, the object 1 is described as a ground lidar, but the object 1 is not limited to the ground lidar.

Thus, according to an embodiment of the present invention, the table body is moved relative to the virtual center of the rotating body by the rod operation of the actuators while the base of the horizontal holding device is installed on the ground, so that the table body is not restricted by the inclination of the ground and gravity It is possible to maintain a horizontal state parallel to the direction perpendicular to the direction. In addition, since the actuators support the table body in a horizontal state, the table body can continuously maintain the horizontal state safely. Accordingly, the ground lidar placed on the table body horizontally of the table body can also maintain a vertical state parallel to the direction perpendicular to the gravity direction, so that the object can be accurately measured.

Although the preferred embodiments of the present invention have been described in detail above, the scope of the present invention is not limited thereto, and various modifications and improvements of those skilled in the art using the basic concepts of the present invention defined in the following claims are also provided. It belongs to the scope of rights.

1: Ground lidar 100: Leveling device
10: rotating body 20: base
21: receiving member 211: receiving space
22: leg member 23: panel member
30: rotating body 40: table
41: table body 42: bracket
43: gap adjusting unit 431: adjusting member
432: plate 70: support
71: support drive unit 711: actuator
712: First block 712a: Block body
712b: arrangement space 712c: rotating block
713: second block 72: base

Claims (15)

By placing the ground lidar to maintain the horizontal and vertical state,
A table body on which the ground lidar can be placed, arranged along the periphery of the table body and arranged on a plurality of brackets for fixing the ground lidar and each of the plurality of brackets to be in contact with the ground lidar to fix the ground lidar Table with a spacer that can be,
Rotating body connected to the table body to support the table,
A support portion surrounding a portion of the rotating body,
A plurality of rotating bodies disposed between the base and the rotating body and supporting the rotating body to rotate;
It is arranged along the outer periphery of the table and supports to set the rotation of the rotating body by supporting the table
It includes,
The rotating body can be rotated based on the virtual center point in the support portion,
The gap adjusting portion is located between the adjusting member fastened to the bracket and the bracket and the ground lidar, and is hingedly spaced from the end of the adjusting member and has a predetermined width to contact the ground lidar on the inner surface. It includes a plate with a rubber pad,
When the adjusting member is fastened, the plate moves linearly without rotating along the adjusting member by the clearance and moves in the direction of the ground lidar or moves in the direction of the inner surface of the bracket.
Horizontal holding device. delete delete delete delete delete delete delete delete In claim 1,
The support portion,
A support driving unit arranged along the edge of the table and one end hinged to the table to support the table and
A base that supports the lower end of the support portion and the other end of the support driving portion is hinged.
It includes,
The support driving unit,
Actuator,
A first block hingedly connecting the actuator and the table, and
A second block hingedly connecting the actuator and the base
Containing
The first block,
A block body connected to the table and having an arrangement space and
A rotating block that is disposed to be rotatable in the arrangement space and is connected to the actuator
Containing
Horizontal holding device. delete delete delete In claim 10,
The support portion,
A receiving member in which at least a portion of the rotating body is accommodated,
A plurality of leg members supporting the rotating body from the ground, and
A panel member disposed on the base and connected to the plurality of leg members
Containing
Horizontal holding device.
delete

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