KR19980019688A - Variable distance measuring device - Google Patents
Variable distance measuring device Download PDFInfo
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- KR19980019688A KR19980019688A KR1019960037895A KR19960037895A KR19980019688A KR 19980019688 A KR19980019688 A KR 19980019688A KR 1019960037895 A KR1019960037895 A KR 1019960037895A KR 19960037895 A KR19960037895 A KR 19960037895A KR 19980019688 A KR19980019688 A KR 19980019688A
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- 238000000926 separation method Methods 0.000 abstract description 10
- 238000005259 measurement Methods 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 4
- 238000003466 welding Methods 0.000 description 4
- 230000003287 optical effect Effects 0.000 description 2
- 230000003247 decreasing effect Effects 0.000 description 1
Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
- G01S7/48—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S17/00
- G01S7/481—Constructional features, e.g. arrangements of optical elements
- G01S7/4814—Constructional features, e.g. arrangements of optical elements of transmitters alone
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S17/00—Systems using the reflection or reradiation of electromagnetic waves other than radio waves, e.g. lidar systems
- G01S17/02—Systems using the reflection of electromagnetic waves other than radio waves
- G01S17/06—Systems determining position data of a target
- G01S17/08—Systems determining position data of a target for measuring distance only
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
- H01S3/00—Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range
- H01S3/005—Optical devices external to the laser cavity, specially adapted for lasers, e.g. for homogenisation of the beam or for manipulating laser pulses, e.g. pulse shaping
- H01S3/0071—Beam steering, e.g. whereby a mirror outside the cavity is present to change the beam direction
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- Engineering & Computer Science (AREA)
- Electromagnetism (AREA)
- Computer Networks & Wireless Communication (AREA)
- General Physics & Mathematics (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Plasma & Fusion (AREA)
- Optics & Photonics (AREA)
- Measurement Of Optical Distance (AREA)
- Optical Radar Systems And Details Thereof (AREA)
- Length Measuring Devices By Optical Means (AREA)
Abstract
개시된 내용은 레이저(Laser)거리 측정시스템에 관한 것으로서, 특히 거리측정센서 내부에 회동 또는 병진운동가능한 레이저반사거울들을 결합시킨 가변거리측정장치에 관한 것이다.The present disclosure relates to a laser distance measuring system, and more particularly to a variable distance measuring device incorporating a rotatable or translatable laser reflective mirror inside a distance measuring sensor.
이같이 본 발명에 따른 가변거리측정장치는 거리측정장치에 구비된 거울중 레이저발진기로부터 직접 레이저가 입사되는 반사거울은 회동가능하게 결합되고, 이 반사거울로부터 반사되는 레이저를 입사받는 반사거울은 수평이동가능하게 결합되어 레이저빔의 반사위치를 변화시킨다. 따라서, 반사거울들의 구동에 의해 레이저거리 측정시스템의 측정거리를 변화시킬수 있으며, 또한 레이저의 분리각을 변화시킬수 있다. 또한, 각각의 반사거울에 조절기를 부착하여 반사거울의 위치를 눈금으로 표시하여 반사거울의 조절량을 직접 알수 있도록 하였다.As described above, the variable distance measuring device according to the present invention is rotatably coupled to a reflection mirror in which a laser is directly incident from a laser oscillator among the mirrors provided in the distance measuring device, and the reflection mirror receiving a laser beam reflected from the reflection mirror is horizontally moved. Possibly combined to change the position of reflection of the laser beam. Therefore, the measurement distance of the laser distance measuring system can be changed by driving the reflection mirrors, and also the separation angle of the laser can be changed. In addition, a controller is attached to each of the reflection mirrors to indicate the position of the reflection mirrors on the scale so that the adjustment amount of the reflection mirror can be directly known.
Description
본 발명은 레이저 거리측정장치에 관한 것으로서, 특히 레이저발진기 전면에 회동가능하게 반사거울을 결합하고, 또 이 회동반사거울에 대해 수평이동하는 수평이동반사거울을 결합한 가변거리측정장치에 관한 것이다.BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a laser distance measuring device, and more particularly, to a variable distance measuring device in which a reflection mirror is rotatably coupled to a front surface of a laser oscillator, and a horizontal moving reflection mirror that moves horizontally with respect to the rotating reflection mirror.
종래 거리측정장치는 카메라와 레이저발진기로 구성된 센서와 카메라와 레이저간에 분리각을 생성시키는 반사거울들로 구성되어 있었다. 이 반사거울들은 레이저의 전면에 레이저빔이 일정한 각으로 분리되도록 일정한 분리각을 가지며 고정되어 결합되어 있었다.Conventional distance measuring device was composed of a sensor consisting of a camera and a laser oscillator and reflection mirrors to generate a separation angle between the camera and the laser. These reflective mirrors were fixedly coupled with a constant separation angle so that the laser beam was separated at a constant angle in front of the laser.
따라서, 종래 거리측정장치의 경우에는 카메라와 레이저발생기로 구성된 센서와 이 센서의 전면에 설치되어 레이저빔이 일정한 분리각을 갖도록하는 반사거울들의 조절이 불가능하게 제작이 되어 있었다. 따라서, 거리측정장치와 부재와의 거리는 거리측정장치 설치후 조절이 불가능하게 되어 있었다. 이로인해, 거리측정장치의 경우 분리각을 주기 위해 레이저나 카메라를 기울여 사용하였다. 그러므로, 거리측정장치가 기울어짐에 따라 거리측정장치을 설치하기 위한 공간을 주기위해 그 크기가 커지는 단점이 있었다.Therefore, in the conventional distance measuring apparatus, a sensor composed of a camera and a laser generator, and a reflection mirror that is installed on the front of the sensor so that the laser beam has a constant separation angle, are not manufactured. Therefore, the distance between the distance measuring device and the member could not be adjusted after the distance measuring device was installed. Because of this, the distance measuring device was used by tilting the laser or camera to give a separation angle. Therefore, as the distance measuring device is inclined, its size increases in order to give a space for installing the distance measuring device.
본 발명은 이와같은 문제점을 해결하고자 안출한 것으로서, 거리측정장치의 내부에 회동 또는 좌우이동가능한 반사거울들을 결합하여 반사거울들을 조절함으로써 거리측정장치와 부재사이의 거리 및 초점거리등을 조절하는 가변거리측정장치를 제공함에 있다.The present invention has been made to solve the above problems, by adjusting the reflection mirror by combining the reflection mirror that can be rotated or moved left and right inside the distance measuring device to adjust the distance between the distance measuring device and the member and the focal length, etc. To provide a distance measuring device.
도 1은 본 발명에 따른 가변거리측정장치의 구성도,1 is a block diagram of a variable distance measuring apparatus according to the present invention,
도 2는 본 발명에 따른 가변거리측정장치의 반사거울들을 나타낸 확대도,2 is an enlarged view showing reflection mirrors of a variable distance measuring apparatus according to the present invention;
도 3a는 본 발명에 따라 회동가능하게 결합된 반사거울의 조절장치를 나타낸 정면도,Figure 3a is a front view showing the adjusting device of the reflective mirror rotatably coupled in accordance with the present invention,
도 3b는 도 3a의 조절장치에 의해 회동하는 반사거울의 사용상태도,Figure 3b is a state of use of the reflective mirror rotated by the adjusting device of Figure 3a,
도 4a는 본 발명에 따라 수평이동가능하게 결합된 반사거울의 조절장치를 나타낸 정면도,Figure 4a is a front view showing the adjustment device of the reflective mirror coupled horizontally movable in accordance with the present invention,
도 4b는 도 4a의 조절장치에 의해 수평이동하는 반사거울의 사용상태도.Figure 4b is a state of use of the reflective mirror to move horizontally by the adjusting device of Figure 4a.
*도면의 주요부분에 대한 부호설명** Description of Signs of Main Parts of Drawings *
10 : 가변거리측정장치20 : 광학계10: variable distance measuring device 20: optical system
22 : 회동반사거울26 : 수평이동반사거울22: mirror reflection mirror 26: horizontal reflection mirror
40 : 회전조절기50 : 수평이동조절기40: rotation controller 50: horizontal movement controller
본 발명은 카메라와 레이저발진기를 구비한 거리측정장치에 있어서, 상기 레이저발생기 전면에 일정간격 이격되어 회동가능하게 결합된 회동반사거울; 및 상기 회동반사거울에 대해 일정간격 이격되어 수평이동되도록 결합된 수평이동반사거울을 포함하는 가변거리측정장치를 제공함에 있다.The present invention provides a distance measuring device including a camera and a laser oscillator, comprising: a rotating reflection mirror coupled to the front surface of the laser generator at a predetermined interval so as to be rotatable; And it provides a variable distance measuring apparatus comprising a horizontal moving reflection mirror coupled to move horizontally spaced at a predetermined interval with respect to the rotating reflection mirror.
이하, 참조된 도면들에 의거하여 본 발명의 바람직한 실시예를 상세히 설명한다.Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.
도 1은 본 발명에 따른 가변거리측정장치의 구성도이고, 도 2는 본 발명에 따른 가변거리측정장치의 반사거울들을 나타낸 확대도이다. 도시한 바와 같이, 본 발명에 따른 거리측정장치(10)는 카메라(12), 레이저발진기(14), 거울등 광학계(20)로 구성이 되어 있다. 특히, 레이저발진기(14)의 전면에는 원통형렌즈(16)가 위치하고 있으며, 이 원통형렌즈(16)는 레이저발진기(14)에서 발진된 레이저빔을 평면빔으로 변환시켜준다. 그리고, 원통형렌즈(16)의 전면에는 일정간격 이격되어 회동가능한 회동반사거울(22)이 설치되어 있다. 이 회동반사거울(22)에는 회전축(24)의 외주 일정부분에 결합되어 있다. 이 회전축(24)의 배면에는 회전조절기(미도시)가 거리측정장치(10)의 외부로 돌출결합되어 있다. 이 회전조절기는 도 3a를 통하여 상세히 설명한다. 그리고, 회동반사거울(22)의 우측전면으로 일정간격 이격하여 수평이동반사거울(26)이 결합되어 있다. 이 수평이동반사거울(26)은 병진운동이 가능하도록 원주형으로 구성되어 있고, 일정길이를 갖는 막대형상의 슬롯(28)에 이동가능하게 결합된 슬라이더(30)에 고정결합되어 있다. 또한, 이 수평이동반사거울(26)이 결합된 슬라이더(30)는 병진운동을 조절하는 수평조절기(미도시)에 결합되어 있다. 이 수평조절기는 거리측정장치(10)의 외부로 돌출결합되어 있다. 수평조절기에 관한 설명은 도 4a를 통해 상세히 설명한다.1 is a configuration diagram of a variable distance measuring apparatus according to the present invention, and FIG. 2 is an enlarged view showing reflection mirrors of the variable distance measuring apparatus according to the present invention. As shown, the distance measuring device 10 according to the present invention is composed of a camera 12, a laser oscillator 14, an optical system 20 such as a mirror. In particular, the cylindrical lens 16 is located on the front surface of the laser oscillator 14, the cylindrical lens 16 converts the laser beam oscillated by the laser oscillator 14 into a planar beam. And, the front surface of the cylindrical lens 16 is provided with a rotatable mirror 22 that can be rotated at regular intervals. The rotating reflection mirror 22 is coupled to a predetermined portion of the outer circumference of the rotating shaft 24. On the back of the rotating shaft 24, a rotation controller (not shown) is projected to the outside of the distance measuring device 10. This rotation controller will be described in detail with reference to FIG. 3A. Then, the horizontal reflection mirror 26 is coupled to the right front surface of the rotation reflection mirror 22 by a predetermined interval. The horizontal reflection mirror (26) is configured in a columnar shape to enable translational movement and is fixedly coupled to a slider (30) movably coupled to a rod-shaped slot (28) having a predetermined length. In addition, the slider 30 coupled to the horizontal reflection mirror 26 is coupled to a horizontal adjuster (not shown) for adjusting the translational motion. This horizontal adjuster is projected outward of the distance measuring device 10. The description of the level adjuster will be described in detail with reference to FIG. 4A.
이러한 구성을 갖는 가변거리측정장치(10)는 레이저발진기(14)에서 레이저빔이 발진되면, 레이저빔은 레이저발진기(14)의 전면에 위치한 원통형렌즈(16)에 의해 평면빔으로 변환된다. 이 평면빔은 원통형렌즈(16)와 일정간격 이격된 회동반사거울(22)에 입사된다. 그리고, 평면빔은 회동반사거울(22)에 입사된후, 일정한 분리각을 갖고 반사되어 수평이동반사거울(26)에 입사된다. 그리고, 수평이동반사거울(26)에 입사된 평면빔은 거리측정대상인 부재(18)로 반사된 후, 다시 이 부재로부터 반사되어 카메라(12)로 입사되게 된다.In the variable distance measuring apparatus 10 having such a configuration, when a laser beam is oscillated in the laser oscillator 14, the laser beam is converted into a plane beam by a cylindrical lens 16 located in front of the laser oscillator 14. This planar beam is incident on the rotating reflection mirror 22 spaced apart from the cylindrical lens 16 by a predetermined distance. Then, the plane beam is incident on the tilting mirror 22, is reflected with a constant separation angle and is incident on the horizontally movable mirror 26. Then, the plane beam incident on the horizontal reflection mirror 26 is reflected by the member 18 as the distance measurement object, and is then reflected from the member to be incident on the camera 12.
이때, 카메라(12)는 부재(18)에 초점이 맺히는 면을 감지하게 된다. 따라서, 카메라(12)는 부재(18)에서 레이저빔의 형태를 촬영하게 되고, 이 쵤영된 영상을 통해 부재(18)와 거리측정장치(10) 사이의 거리를 산출하게 된다.At this time, the camera 12 detects a surface on which the member 18 is focused. Accordingly, the camera 12 photographs the shape of the laser beam in the member 18, and calculates the distance between the member 18 and the distance measuring device 10 based on the captured image.
도 3a는 회전조절기를 나타내는 정면도이며, 도 3b는 회동반사거울의 작동을 나타내는 사용상태도이다. 도시한 바와 같이, 회전조절기(40)는 원주를 따라 회전각을 나타내는 회전눈금(42)이 형성되어 있다. 그리고, 회동거울(22)이 결합된 회전축(24)의 일단에는 조절편(44)이 결합되어 있다. 이 조절편(44)을 일방향으로 회전시키면, 회동반사거울(22)은 일정 각도만큼 회동하게 된다. 따라서, 레이저빔의 분리각은 커지거나 작아지게 되어 부재(18)에 입사되는 입사각을 θ1,θ2으로 조절하여 거리측정장치(10)와 부재(18)사이의 거리를 자유로이 조절할 수 있다.Figure 3a is a front view showing a rotation controller, Figure 3b is a state diagram showing the operation of the mirror reflection mirror. As shown, the rotation controller 40 is formed with a rotation scale 42 representing the rotation angle along the circumference. Then, the adjusting piece 44 is coupled to one end of the rotating shaft 24 to which the rotating mirror 22 is coupled. When the adjusting piece 44 is rotated in one direction, the rotating reflection mirror 22 is rotated by a predetermined angle. Therefore, the separation angle of the laser beam is increased or decreased so that the distance between the distance measuring device 10 and the member 18 can be freely adjusted by adjusting the incident angle incident on the member 18 to θ1 and θ2.
또한, 도 4a는 수평이동조절기를 나타내는 정면도이며, 도 4b는 수평이동반사거울(26)의 작동을 나타내는 사용상태도이다. 도시한 바와 같이, 수평이동조절기(50)는 길이방향으로 조절눈금(52)이 일정 간격으로 형성되어 있다. 또한, 수평이동조절기(50)는 도 2에 도시된 슬라이더(30)에 수평이동반사거울(26)을 좌우로 조작하는 조작편(54)이 결합되어 있다. 이 조작편(54)을 좌우로 조절하면, 수평이동반사거울(26)은 일정량만큼 좌우로 병진운동하게 된다. 따라서, 회동반사거울(22)에서 반사된 레이저빔을 동일한 분리각(θ)을 가진 상태에서 부재(18)와 거리측정장치(10) 사이의 거리를 조절할 수 있다. 그리고, 수평이동조절기(50)에 감속장치(미도시)를 구비시켜 부재(18)와 거리측정장치(10) 사이의 거리를 세밀하게 조절할 수 있다.4A is a front view showing the horizontal shift controller, and FIG. 4B is a state diagram showing the operation of the horizontal reflection mirror 26. As shown in the figure, the horizontal shift controller 50 is provided with adjustment intervals 52 at regular intervals in the longitudinal direction. In addition, the horizontal movement controller 50 is coupled to the slider 30 shown in Figure 2, the operation piece 54 for operating the horizontal movement mirror 26 to the left and right. When the operation piece 54 is adjusted to the left and right, the horizontal reflection mirror 26 translates to the left and right by a predetermined amount. Therefore, the distance between the member 18 and the distance measuring device 10 can be adjusted in a state in which the laser beam reflected from the tilting mirror 22 has the same separation angle θ. In addition, a reduction device (not shown) may be provided in the horizontal movement controller 50 to finely adjust the distance between the member 18 and the distance measuring device 10.
따라서, 본 발명에 따른 가변거리측정장치는 분리각과 부착위치에 따른 부재 사이의 거리를 거리측정장치를 부착한 후에도 그 거리와 측정영역을 조절할 수 있어 그 적용범위가 넓다는 장점이 있으며, 작은 부재의 용접뿐만 아니라, 큰 부재의 용접에도 본 발명에 따른 가변거리측정장치를 사용할 수 있는 효과를 갖는다.Therefore, the variable distance measuring device according to the present invention has the advantage that the distance and the measurement area can be adjusted even after the distance measuring device is attached to the distance between the member according to the separation angle and the attachment position, and thus the application range is wide, and the small member In addition to the welding of the large member, the variable distance measuring apparatus according to the present invention can be used.
본 발명은 용접할 때 용접선의 위치나 용접선의 상태를 정확히 예측하면서 여러부재에 적용이 가능하도록 레이저와 카메라를 이용하여 3차원 정보를 2차원 영상화면에 담는 센서를 제작하는데 있다. 따라서, 본 발명의 목적은 레이저발진기의 전면에 분리각을 조절할 수 있도록 회동가능하게 반사거울을 결합하고, 이 반사거울에 대응하여 수평이동가능하게 반사거울을 결합하여 부재와 측정장치간 초점거리를 조절할 수 있는 가변거리측정장치를 제공함에 있다.The present invention is to produce a sensor that contains a three-dimensional information on a two-dimensional image screen using a laser and a camera so that it can be applied to various members while accurately predicting the position of the welding line or the state of the welding line when welding. Accordingly, an object of the present invention is to combine the reflection mirror to be rotatable to adjust the separation angle on the front surface of the laser oscillator, and to combine the reflection mirror to be movable horizontally in response to the reflection mirror to improve the focal length between the member and the measuring device. It is to provide a variable distance measuring device that can be adjusted.
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| KR1019960037895A KR100232256B1 (en) | 1996-09-02 | 1996-09-02 | Variable range measurment apparatus |
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| KR1019960037895A KR100232256B1 (en) | 1996-09-02 | 1996-09-02 | Variable range measurment apparatus |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100804228B1 (en) * | 2001-08-27 | 2008-02-18 | 주식회사 포스코 | Measuring apparatus for measuring the distance to the ship and measuring method using the same |
| KR100916239B1 (en) * | 2002-12-23 | 2009-09-10 | 주식회사 포스코 | Side guiding line surveillance system for large ships |
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| KR101167727B1 (en) * | 2005-05-04 | 2012-07-23 | 엘지전자 주식회사 | Gap sensor for exposure |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100804228B1 (en) * | 2001-08-27 | 2008-02-18 | 주식회사 포스코 | Measuring apparatus for measuring the distance to the ship and measuring method using the same |
| KR100916239B1 (en) * | 2002-12-23 | 2009-09-10 | 주식회사 포스코 | Side guiding line surveillance system for large ships |
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