KR101504076B1 - System for Measuring a Displacement to take advantage of a Laser and Drive Method of the Same - Google Patents
System for Measuring a Displacement to take advantage of a Laser and Drive Method of the Same Download PDFInfo
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- KR101504076B1 KR101504076B1 KR1020140165237A KR20140165237A KR101504076B1 KR 101504076 B1 KR101504076 B1 KR 101504076B1 KR 1020140165237 A KR1020140165237 A KR 1020140165237A KR 20140165237 A KR20140165237 A KR 20140165237A KR 101504076 B1 KR101504076 B1 KR 101504076B1
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- laser
- correction amount
- axis correction
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- 238000006073 displacement reaction Methods 0.000 title claims abstract description 100
- 238000000034 method Methods 0.000 title claims abstract description 21
- 238000012937 correction Methods 0.000 claims abstract description 77
- 238000005259 measurement Methods 0.000 claims abstract description 48
- 230000005540 biological transmission Effects 0.000 claims abstract description 33
- 238000004891 communication Methods 0.000 claims abstract description 20
- 238000004458 analytical method Methods 0.000 claims description 11
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 claims description 6
- 238000000926 separation method Methods 0.000 claims description 5
- 238000004364 calculation method Methods 0.000 claims description 2
- 238000012544 monitoring process Methods 0.000 abstract description 4
- 238000005516 engineering process Methods 0.000 abstract description 2
- 238000009434 installation Methods 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 3
- 230000003287 optical effect Effects 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 2
- 230000008439 repair process Effects 0.000 description 2
- 241001465754 Metazoa Species 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B11/00—Measuring arrangements characterised by the use of optical techniques
- G01B11/16—Measuring arrangements characterised by the use of optical techniques for measuring the deformation in a solid, e.g. optical strain gauge
- G01B11/165—Measuring arrangements characterised by the use of optical techniques for measuring the deformation in a solid, e.g. optical strain gauge by means of a grating deformed by the object
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/12—Messaging; Mailboxes; Announcements
- H04W4/14—Short messaging services, e.g. short message services [SMS] or unstructured supplementary service data [USSD]
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J1/00—Photometry, e.g. photographic exposure meter
- G01J1/42—Photometry, e.g. photographic exposure meter using electric radiation detectors
- G01J1/44—Electric circuits
- G01J2001/4446—Type of detector
- G01J2001/446—Photodiode
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J3/00—Spectrometry; Spectrophotometry; Monochromators; Measuring colours
- G01J3/28—Investigating the spectrum
- G01J3/2803—Investigating the spectrum using photoelectric array detector
- G01J2003/282—Modified CCD or like
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B2219/00—Program-control systems
- G05B2219/30—Nc systems
- G05B2219/37—Measurements
- G05B2219/37019—Position detection integrated in actuator, lvdt integrated linear actuator
Abstract
Description
TECHNICAL FIELD The present invention relates to optical measurement, communication, and control measurement technology, and more particularly, to a laser measurement device for a bridge, a slope, a dam, a reservoir, a transmission tower, a nuclear power generator or a large structure requiring two or three- The present invention relates to a laser displacement measurement system for measuring a displacement amount and a correction amount with respect to these systems and a driving method thereof.
In order to measure a lining deformation of a tunnel in the case of a structure such as a horseshoe shape or a circular tunnel such as a subway, a railroad, a road, etc., deformed (eccentrically deformed and tilted) due to external force or other factors, A two-dimensional tunnel deformation automatic measuring device using a light wave prism that reflects a laser emitted from a measuring instrument is used.
The measurement of the tunnel displacement is an important measure for determining the danger of a tunnel by measuring how much the section of the lining of the tunnel changes in the initial measured section.
The inner displacement meter side is made by arranging a number of measuring sensors in a line on a circular arc along the lining section and measuring individual sensors.
At this time, the initial measured value represents the first measured value when the measurement sensors are stabilized after the measurement sensor is installed. In addition, at the initial measurement, measure the cross section using a measuring instrument such as a light wave measuring instrument at the same time, and obtain the appearance of the initial cross section. That is, the initial measurement value and the initial cross-sectional shape are mapped.
Through this process, the displacement of the measured value can be converted to the displacement of the tunnel inner cavity section.
The optical wave measuring device and the optical wave prism used in these various applications are exposed to the outside for a predetermined period of time in order to measure the displacement, so that they can not perform the normal function due to the foreign dust, foreign matter or intrusion of plants and animals.
In addition, when the measuring unit is measured by the human force, a personal error is generated, and if it is fixed and automatically measured, the fine movement of the fixed point can not be corrected.
Therefore, it is inconvenient to clean it individually, and there is also a risk of safety accident of the worker. Also, during the cleaning, the positions of the light wave measuring device and the light wave prism may be deformed, which may cause an error in the subsequent measurement.
Also, the laser displacement meter is measured at long distance. So, if the anchor point is not fixed properly, the pointer at a long distance can move a lot. Therefore, there is a need for means to correct this.
The laser beam must have a fixed horizontal accuracy to accurately measure its straightness. However, the field condition is not maintained horizontally due to external factors (load, temperature).
This represents the measurement result including the error. To eliminate the error, you need to measure the horizontal tilt and remove it. If the error is eliminated, a more accurate measurement value will be obtained.
A first aspect of the present invention is to provide a laser displacement measurement system and a method of driving the same, which can solve the above-described problems of the prior art, and a first object of the present invention is to provide a laser displacement measurement system, In order to obtain accurate measurement without errors, it is necessary to measure the displacement and the correction amount by using a laser transmission measuring instrument after installing a laser receiving measuring instrument on a large structure requiring monitoring.
A second object of the present invention is to measure a two-dimensional and three-dimensional displacement amount and a correction amount of a civil engineering work, a building, etc., which are separated by a distance of several hundred meters from a distance by installing a laser transmission and reception measuring instrument.
The third object of the present invention is to solve the conventional problem that the three-dimensional measurement of the displacement amount is impossible, as well as to clarify the two-dimensional displacement measurement and the three-dimensional displacement measurement systematically, It accurately judges whether the above civil works or buildings are defective, processes the maintenance and restoration accordingly, expedites the localized equipment to the majority of the people at reasonable level, It is for this reason.
In order to achieve the above object, the present invention includes the following configuration.
That is, the laser displacement measurement system according to the embodiment of the present invention measures the first and third axis displacement amounts that are changed in the first and third axial directions as the color light laser beam is transmitted through the CCD (Charge Coupled Device) module A laser reception meter; Measuring a second axial displacement amount indicating a difference between a propagation time difference and a separation distance constituted between the laser receiving measuring instruments placed in a second axial direction by emitting a color light laser beam to the CCD module, A laser transmission measuring device for measuring an axis correction amount and a third axis correction amount; Axis displacement amount through the wired / wireless communication network connected to the first and third axis displacement amounts and the laser transmission measuring instrument from the laser reception measuring instrument, and then the first axis displacement amount is within ± 5% error range of the standard one-axis displacement amount And corrects the third axis displacement amount by an amount corresponding to the third axis correction amount so as to fall within a ± 5% error range of the reference three-axis displacement amount, thereby correcting the third axis displacement amount by the third axis correction amount; And the reference one-axis displacement amount and the reference three-axis displacement amount to a control unit connected to the wired / wireless communication network, and the first axis correction amount and the third axis correction amount received from the control unit are recorded and set each time and are subjected to quantitative numerical analysis and qualitative And a management server for generating a report file on the correction measurement, which is a result of the numerical analysis.
The method of driving a laser displacement measurement system according to an embodiment of the present invention includes receiving a color light laser beam through a CCD (Charge Coupled Device) module, , Measuring the three-axis displacement amount; The laser transmission measuring device measures a second axis displacement amount indicating a difference between a propagation time difference and a separation distance formed between the laser reception measuring devices placed in a second axis direction by emitting a color light laser beam to the CCD module, Measuring a first axis correction amount and a third axis correction amount of the first axis; Receiving, by the control unit, the second axial displacement amount from the laser reception meter through the wired / wireless communication network connected to the first and third axial displacement amounts and the laser transmission measurement unit; The control unit performs an addition / subtraction calculation by the first axis correction amount so that the first axis displacement amount falls within the ± 5% error range of the reference one-axis displacement amount, and the third axis displacement amount is within ± 5% Correcting by the third axis correction amount to correspond to the third axis correction amount; And a management server providing the reference uniaxial displacement amount and the reference three-axis displacement amount to a controller connected to the wired / wireless communication network; And a step of recording and adjusting the first axis correction amount and the third axis correction amount received from the control server each time the control server records and calibrates to generate a report file on the correction measurement which is a result of the quantitative numerical analysis and the qualitative numerical analysis do.
A laser displacement measuring system and a driving method thereof according to the present invention are characterized by installing a laser receiving measuring instrument on a bridge, a slope, a dam, a reservoir, a transmission tower, a nuclear power generator or a large structure requiring three dimensional monitoring, And the correction amount, thereby giving a first effect of obtaining an accurate measurement value without error.
In addition, the present invention provides a second effect that can measure two or three dimensional displacements of a civil engineering work, a building, and the like that are separated by a distance of several hundred meters from a distance by installing a laser transmission and reception measuring instrument.
In addition, the present invention solves the conventional problem that the three-dimensional measurement of the displacement amount is not possible, and also the two-dimensional displacement measurement and the three-dimensional displacement measurement are systematically clarified, Etc., and the maintenance and repair process accordingly. In addition, it provides a reasonable level of localized equipment to the majority of the people, and a third effect that enables the repair of equipment to be replaced at any time through the sales agent. give.
1 is a view showing a laser displacement measurement system according to an embodiment of the present invention.
2 is another diagram showing a laser displacement measurement system according to an embodiment of the present invention.
3 is a detailed view illustrating a process of measuring a uniaxial displacement amount by the laser displacement measurement system according to an embodiment of the present invention.
4 is a detailed view illustrating a process of measuring a displacement amount of a 2-3 axis by a laser displacement measurement system according to an embodiment of the present invention.
5 is a flowchart illustrating a method of driving a laser displacement measurement system according to an embodiment of the present invention.
[Example]
Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.
1 is a view showing a laser displacement measurement system according to an embodiment of the present invention.
Referring to FIG. 1, the laser
First, as shown in FIG. 2, the laser
The laser
The laser
That is, as shown in FIG. 4, the
The laser
Note that θ is an angle formed between the current distance and the current distance.
The
The
The
Accordingly, when the color light laser beam passes through a transparent acrylic plate (not shown) including pulp attached on one side of the
The
The
5 is a flowchart illustrating a method of driving a laser displacement measurement system according to an embodiment of the present invention.
Referring to FIG. 5, a method of driving a laser displacement measurement system includes installing a laser reception measuring instrument on a bridge, a slope, a dam, a reservoir, a transmission tower, a nuclear power generator, or a large structure requiring three dimensional monitoring, And the correction amount is measured.
First, the laser receiving measuring instrument receives the color laser beam through a CCD (Charge Coupled Device) module, and measures the first and third axial displacements in the first and third axial directions (S100).
The laser transmission measuring device measures a second axis displacement amount indicating a difference between a propagation time difference and a separation distance formed between the laser reception measuring devices placed in the second axial direction by emitting a color light laser beam to the CCD module, Axis correction amount and the third axis correction amount are measured (S110, S120).
Accordingly, the laser transmission measuring device measures a third axis correction amount, which is a value obtained by multiplying the first distance correction amount, which is a value obtained by subtracting the previous distance from a value obtained by multiplying the current distance measured by the tilt sensor by cos &thetas; and the current distance measured by the tilt sensor, .
Here, θ is the angle formed between the current distance and the current distance.
The control unit receives the first and third axis displacement amounts from the laser reception measuring unit and the second axis displacement amount through the wired / wireless communication network connected to the laser transmission measuring unit at step S130.
The control unit corrects and corrects the first axis correction amount by the first axis correction amount so that the first axis displacement amount falls within the ± 5% error range of the reference one-axis displacement amount, and adjusts the third axis displacement amount so as to fall within the ± 5% The three-axis correction amount is incremented / decreased and corrected (S140, S150).
The management server provides the standard 1-axis displacement amount and the reference 3-axis displacement amount to the wired / wireless communication network and the connected controller (S160).
The management server records and calibrates the first axis correction amount and the third axis correction amount received from the control unit each time and generates a report file on the correction measurement, which is a result of the quantitative numerical analysis and the qualitative numerical analysis (S170, S180).
The additional operation of the method of driving the laser displacement measurement system according to the embodiment of the present invention is easy to carry out as described below.
The laser reception meter and the control are mounted on a sealed shield structure, and a transparent acrylic plate containing pulp is attached on one side of the shield structure.
Accordingly, when the color light laser beam passes through the transparent acrylic plate including the pulp, the CCD module outputs the color light laser beam having the lightness value, the luminance value and the saturation value higher than the reference level, or the red light, the green light, And then reads the coordinate value indicated by the focal point of the colored laser beam and transmits it to the laser receiving measuring device.
After the control unit compresses the first and third axis correction amounts and transmits them to the management server at any time, the management server remotely receives the first and the third axis correction amounts through the wired / wireless communication network, temporarily stores the correction amounts, Short Message Service) or MMS (Multimedia Message Service).
The tilt sensor sets the measured error between the current first axis coordinates displaced from the previous first axis coordinate of the laser transmission measuring instrument in the first axis direction to the first axis correction amount, And the other error measured between the changed current third axis coordinates is set as the third axis correction amount.
It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit or scope of the present invention as defined by the following claims. It can be understood that it is possible.
1000: Laser displacement measurement system
100: laser transmission measuring instrument 200: laser receiving measuring instrument
300: control unit 400: management server
500: shield structure
Claims (12)
Measuring a second axis displacement amount indicating a difference between a propagation time difference and a separation distance constituted between the laser reception measuring instruments placed in a second axis direction and outputting a color light laser beam to the CCD module, A laser transmission measuring device for measuring a correction amount and a third axis correction amount;
Axis displacement amount through the wired / wireless communication network connected to the first and third axis displacement amounts and the laser transmission measuring instrument from the laser reception measuring instrument, and then the first axis displacement amount is within ± 5% error range of the standard one-axis displacement amount And corrects the third axis displacement amount by an amount corresponding to the third axis correction amount so as to fall within a ± 5% error range of the reference three-axis displacement amount, thereby correcting the third axis displacement amount by the third axis correction amount; And
The first one-axis displacement amount and the reference three-axis displacement amount are provided to a control unit connected to the wired / wireless communication network, and the first axis correction amount and the third axis correction amount received from the control unit are recorded and adjusted each time, And a management server for generating a report file on the calibration measurement that is a result of the analysis.
The laser reception meter and the control unit are mounted on a sealed shield structure,
The color light laser beam is passed through a transparent acrylic plate including pulp attached on one side of the shield structure so that the CCD module has a lightness value, a luminance value, a color having a saturation value higher than a reference level, Blue, and then reads the coordinate value indicated by the focal point of the colored laser beam, and transmits the read coordinate value to the laser receiving measuring instrument.
The first axis correction amount being a value obtained by subtracting the previous distance from a value obtained by multiplying a current distance measured by the tilt sensor by cos?; And
And a third axis correction amount which is a value obtained by multiplying the current distance measured by the tilt sensor by sin &thetas;.
Wherein the angle is an angle formed between the current distance and the previous distance.
Wherein the controller compresses the first and third axis correction amounts and transmits the same to the management server at any time,
The management server remotely receives and stores the first and the third axis correction amounts through the wired / wireless communication network, and then transmits the SMS to a manager communication terminal in the form of Short Message Service (SMS) or Multimedia Message Service (MMS) Laser displacement measurement system.
Wherein the first axis correction amount is set to a measured error between the current first axis coordinates displaced in the first axis direction from the previous first axis coordinate of the laser transmission measuring device and the measured error is set as the first axis correction amount in the third axis direction And sets another error measured between the current positional coordinates of the third axis as the third axis correction amount.
The laser transmission measuring device measures a second axial displacement amount indicating a difference between a propagation time difference and a separation distance formed between the laser receiving measuring devices placed in a second axial direction by emitting a color light laser beam to the CCD module, Measuring a first axis correction amount and a third axis correction amount;
Receiving, by the control unit, the second axial displacement amount from the laser reception meter through the wired / wireless communication network connected to the first and third axial displacement amounts and the laser transmission measurement unit;
The control unit performs an addition / subtraction calculation by the first axis correction amount so that the first axis displacement amount falls within the ± 5% error range of the reference one-axis displacement amount, and the third axis displacement amount is within ± 5% Correcting by the third axis correction amount to correspond to the third axis correction amount; And
Providing, by the management server, the reference uniaxial displacement amount and the reference three-axis displacement amount to a controller connected to the wired / wireless communication network; And
And recording and adjusting the first axis correction amount and the third axis correction amount received from the control server each time the management server records and calibrates to generate a report file on the correction measurement which is a result of the quantitative numerical analysis and the qualitative numerical analysis Method of driving a laser displacement measurement system.
Mounting the laser reception meter and the control unit on a sealed shield structure;
Passing the colored laser beam through a transparent acrylic plate comprising pulp attached on one side of the shield structure;
The CCD module recognizing a color light laser beam having a lightness value, a luminance value and a saturation value higher than a reference level, or a red light, a green light, and a blue light;
Further comprising reading the coordinate value indicated by the focal point of the colored laser beam and transmitting the read coordinate value to the laser receiving measuring instrument.
The first axis correction amount being a value obtained by subtracting the previous distance from a value obtained by multiplying a current distance measured by the tilt sensor by cos?; And
And a third axis correction amount which is a value obtained by multiplying the current distance measured by the tilt sensor by sin &thetas;.
Wherein the angle between the current distance and the current distance is an angle formed between the current distance and the previous distance.
The control unit compresses the first and third axis correction amounts and transmits the same to the management server at any time; And
The management server remotely receives and stores the first and the third axis correction amounts through the wired / wireless communication network, and then transmits the SMS to the manager communication terminal in the form of Short Message Service (SMS) or Multimedia Message Service (MMS) Wherein the laser displacement measurement system comprises:
Setting a measured error between the current first axis coordinates displaced from the previous first axis coordinate of the laser transmission meter in the first axis direction to the first axis correction amount; And
Further comprising setting, as the third axis correction amount, another measured error between the current third axis coordinate changed in the third axis direction from the previous third axis coordinate.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020140165237A KR101504076B1 (en) | 2014-11-25 | 2014-11-25 | System for Measuring a Displacement to take advantage of a Laser and Drive Method of the Same |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020140165237A KR101504076B1 (en) | 2014-11-25 | 2014-11-25 | System for Measuring a Displacement to take advantage of a Laser and Drive Method of the Same |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20160116892A (en) * | 2015-03-31 | 2016-10-10 | 황성현 | Concrete mold collapse alarm system using laser transmitter and laser receiver |
| CN110031858A (en) * | 2019-05-14 | 2019-07-19 | 广州市吉华勘测股份有限公司 | A kind of formwork monitoring device, system and method |
| KR102260911B1 (en) * | 2021-01-12 | 2021-06-04 | 주식회사 동서기술 | A load test system |
| KR102260934B1 (en) * | 2021-01-12 | 2021-06-04 | 주식회사 동서기술 | A method of control of load test system and a location measurement method therefor |
| KR102306208B1 (en) * | 2021-06-03 | 2021-09-29 | 박길호 | Solar power generation system and method to which safety diagnosis technology is applied |
| WO2022142065A1 (en) * | 2020-12-30 | 2022-07-07 | 张东昱 | Synchronous monitoring system for multi-point displacement and rotation response of large-scale structure and data analysis method therefor |
| KR102644135B1 (en) * | 2023-05-31 | 2024-03-06 | 주식회사 아이에스엠 | Method for detecting ground subsidence and structural deformation in a wide area using a fan disk type laser receiving device |
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| KR20010076953A (en) * | 2000-01-28 | 2001-08-17 | 김옥환 | Method and system for measuring displacement of structure using laser beam |
| KR20050108290A (en) * | 2004-05-12 | 2005-11-16 | 이근호 | Apparatus, system, and method for measuring displacement of structure |
| KR100621065B1 (en) | 2003-09-24 | 2006-09-08 | 이제선 | displacement measuring system |
| KR20090112351A (en) * | 2008-04-24 | 2009-10-28 | 이근호 | Device for measuring displacement using a laser |
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2014
- 2014-11-25 KR KR1020140165237A patent/KR101504076B1/en active IP Right Grant
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| KR20010076953A (en) * | 2000-01-28 | 2001-08-17 | 김옥환 | Method and system for measuring displacement of structure using laser beam |
| KR100621065B1 (en) | 2003-09-24 | 2006-09-08 | 이제선 | displacement measuring system |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20160116892A (en) * | 2015-03-31 | 2016-10-10 | 황성현 | Concrete mold collapse alarm system using laser transmitter and laser receiver |
| KR101689268B1 (en) | 2015-03-31 | 2016-12-23 | 황성현 | Concrete mold collapse alarm system using laser transmitter and laser receiver |
| CN110031858A (en) * | 2019-05-14 | 2019-07-19 | 广州市吉华勘测股份有限公司 | A kind of formwork monitoring device, system and method |
| WO2022142065A1 (en) * | 2020-12-30 | 2022-07-07 | 张东昱 | Synchronous monitoring system for multi-point displacement and rotation response of large-scale structure and data analysis method therefor |
| KR102260911B1 (en) * | 2021-01-12 | 2021-06-04 | 주식회사 동서기술 | A load test system |
| KR102260934B1 (en) * | 2021-01-12 | 2021-06-04 | 주식회사 동서기술 | A method of control of load test system and a location measurement method therefor |
| KR102306208B1 (en) * | 2021-06-03 | 2021-09-29 | 박길호 | Solar power generation system and method to which safety diagnosis technology is applied |
| KR102644135B1 (en) * | 2023-05-31 | 2024-03-06 | 주식회사 아이에스엠 | Method for detecting ground subsidence and structural deformation in a wide area using a fan disk type laser receiving device |
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