CN105241378B - Transformer station's 3D outdoor scenes based on laser tracking technology redraw method - Google Patents
Transformer station's 3D outdoor scenes based on laser tracking technology redraw method Download PDFInfo
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- CN105241378B CN105241378B CN201510601659.7A CN201510601659A CN105241378B CN 105241378 B CN105241378 B CN 105241378B CN 201510601659 A CN201510601659 A CN 201510601659A CN 105241378 B CN105241378 B CN 105241378B
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- 238000005516 engineering process Methods 0.000 title claims abstract description 22
- 238000000034 method Methods 0.000 title claims abstract description 19
- 238000005259 measurement Methods 0.000 claims abstract description 24
- 238000012545 processing Methods 0.000 claims abstract description 4
- 238000009434 installation Methods 0.000 claims description 5
- 230000009466 transformation Effects 0.000 claims description 4
- 230000004913 activation Effects 0.000 claims description 3
- 238000009966 trimming Methods 0.000 claims description 3
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- 230000008439 repair process Effects 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000009418 renovation Methods 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
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- 238000006243 chemical reaction Methods 0.000 description 1
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Abstract
The invention discloses a kind of transformer station's 3D outdoor scenes based on laser tracking technology to redraw method, including the size of the critical component such as transformer, oil circuit breaker, arrester and mutual distance, comprises the following steps:Select laser tracker;Select portable hand-held measuring terminals;Commissioning device;Understand the whole station arrangement of transformer station;Determine object and its geometric parameter to be measured;Select laser tracker erect-position point;Measurement;Measurand cloud data obtains;Data processing;Generate transformer station's 3D physical models.The present invention combines the single-point tracking measurement technology and line laser structured light technology of laser tracker, and the three-dimensional measurement in 50 meters of measurement spaces of maximum can be achieved, have the advantages of logicality is rigorous, Project Realization is simple, precision is reliable.
Description
Technical field
Scheme to be redrawn the invention discloses the present invention relates to a kind of transformer station 3D geometry outdoor scenes, is based particularly on laser tracking
Transformer station's 3D outdoor scenes of technology redraw method.
Background technology
With oversize, the development of extremely manufacturing technology, corresponding large scale three-dimensional object surface profilometry
One of focus of three-dimension sensor and measuring study both at home and abroad at present, it be widely used in Aero-Space, ship automobile,
The field such as line detection and quality control, machine-building, CAD/manufacture, robotic vision system.
The large scale 3-D measuring apparatus of current main-stream includes large-sized gantry and bridge-type coordinate measuring machine, portable pass
Joint arm measuring system easily laser tracker etc..Large-scale coordinate measuring machine measurement accuracy is high, but portability, very flexible;
Portable joint arm is flexible preferably, but the measurement for big object is, it is necessary to the coordinate system of unified more joint arms.
Transformer station is the important component of power system, is to connect the pivot point between power plant and user, plays change
The effect of electric energy is changed and distributes, the reliability and security of substation operation directly influence the safe operation of whole power network, become
Power station is developed with the development of power system towards Large Copacity, over capacity, remote direction, and structure becomes increasingly complex.
At present, in failure or technological transformation, Field Force needs to be operated according to construction drawing, this to do for transformer station
There is the shortcomings that time-consuming, efficiency is low, error-prone in method, and paper drawing is difficult to preserve, and it is inconvenient to search, in addition, typically
Construction drawing is not intended that the actual size of critical component, is made troubles to maintenance and renovation;Skill is tracked with reference to absolute laser
Art, it can completely, accurately realize that transformer station 3D geometry outdoor scenes are redrawn, including the critical component such as transformer, oil circuit breaker, arrester
Size and mutual distance, lectotype selection can be rapidly completed in maintenance and renovation, can also be risen in work progress
To booster action.
The content of the invention
The brief overview on the present invention is given below, to provide the basic reason on certain aspects of the invention
Solution.It should be appreciated that this general introduction is not the exhaustive general introduction on the present invention.It is not intended to determine the key of the present invention
Or pith, nor is it intended to limit the scope of the present invention.Its purpose only provides some concepts in simplified form, with
This is as the preamble in greater detail discussed later.
The purpose of the present invention is to be to provide that a kind of logic is rigorous, and Project Realization is simple, precision reliably based on laser with
Transformer station's 3D outdoor scenes of track technology redraw method.
A kind of transformer station's 3D outdoor scenes based on laser tracking technology redraw method, it is characterised in that:Comprise the following steps:
A, laser tracker is selected;
B, portable hand-held measuring terminals are selected:The wireless telecommunications touch sensor and one kind of a kind of hand-hold movable
The high-rate laser scanner of hand-held non-contact formula;
C, commissioning device:Complete the work such as the assembling, activation, calibration of laser tracker and portable type measuring terminal;
D, the whole station arrangement of transformer station is understood, containing installations and facilities;
E, object and its geometric parameter to be measured are determined, object to be measured includes transformer station's building and all devices facility;
F, select laser tracker erect-position point, absolute laser tracker can measure 360 ° of horizontal direction, vertical direction ±
Object in the range of 45 °, optimal erect-position point is selected in the measurement range of laser tracker according to object under test geometric parameter, and
Station bit number of points is reduced as far as possible in the case where selected erect-position point can be formed to the envelope network of object to be measured to reduce movement
The error that measuring instrument is brought, each erect-position point is numbered;
G, measure:1. laser tracker is fixed on a certain selected erect-position point;2. use hand-held touch sensor
Multipoint positioning is carried out to the large-sized object such as transformer, building base plane, determines its accurate location in the three-dimensional model;③
Comprehensive laser scanning is carried out using all surface of contactless high-rate laser scanner measuring targets, with reference to hand-held
The place that touch sensor device to hole, hole etc. are not easy to scan carries out pattern identification;4. by erect-position point number order movement laser with
Track instrument, records mobile air line distance and deviation angle, repeat step 2. ~ 4. until all erect-position points are measured and finished;
H, measurand cloud data obtains, and preserves measurement result;
I, data processing:The cloud data of gained is handled by erect-position point number order, completes cloud data obtained by each erect-position point
Filling-up hole, the operation such as trimming;On the basis of first selected erect-position point, according to other each erect-position points of record apart from base station
Distance and angle-data the modification coordinate system in site, each erect-position point obtained under unified coordinate system are surveyed data, then alignd
To the point cloud model at the whole station of transformer station;
J, transformer station's 3D physical models are generated:Point cloud model is generated into triangle meshes and then generates transformer station 3D entity moulds
Type.
It is large-scale to transformer, building etc. using a kind of hand-held touch sensor using single-point tracking measurement technology
Object base plane carries out multipoint positioning, determines its accurate location in the three-dimensional model;Boost line laser scanner technique is quick
Measure hidden place and be difficult to measurement point;
Using line laser structured light technology, using a kind of contactless high-rate laser scanner, the number with 70000 points/second
According to acquisition capacity, and in the range of 8.5 meters, space length measurement error is no more than 50 μm;
Laser beam density is voluntarily adjusted according to testee surface appearance, surface does not need coating Disposal Measures, to be measured
The all surface of object carries out comprehensive laser scanning, the ground for being not easy to scan with reference to hand-held touch sensor device to hole, hole
Fang Jinhang patterns identify.
The present invention has advantages below compared with prior art:
With reference to the single-point tracking measurement technology and line laser structured light technology of laser tracker, system can realize maximum 50 meters of surveys
Three-dimensional measurement in quantity space, there is rigorous logicality, the characteristics of Project Realization is simple, and precision is reliable, existing laser with
Can be without very high cost on the basis of track instrument realizes the whole station arrangement of transformer station containing installations and facilities distribution three dimensional point cloud
It is quick, high accuracy obtain, complete carry out three-dimensional geometry reconstruct, can be repair technological transformation set up the project a distant place prospecting, emergency first-aid repair thing
Preceding long-range anticipation and afterwards the job that requires special skills vehicle such as outdoor scene deductions, crane site safety manage long-range outdoor scene deduce provide intuitively and
Accurate in-site modeling.
Embodiment
In order to deepen the understanding of the present invention, below in conjunction with embodiment, the invention will be further described, the embodiment
It is only used for explaining the present invention, is not intended to limit the scope of the present invention..
The present invention relates to the embodiment that a kind of transformer station's 3D outdoor scenes based on laser tracking technology redraw method, bag
Include following steps:
A, laser tracker is selected;
B, portable hand-held measuring terminals are selected:The wireless telecommunications touch sensor and one kind of a kind of hand-hold movable
The high-rate laser scanner of hand-held non-contact formula;
C, commissioning device:Complete the work such as the assembling, activation, calibration of laser tracker and portable type measuring terminal;
D, the whole station arrangement of transformer station is understood, containing installations and facilities;
E, object and its geometric parameter to be measured are determined, object to be measured includes transformer station's building and all devices facility;
F, select laser tracker erect-position point, absolute laser tracker can measure 360 ° of horizontal direction, vertical direction ±
Object in the range of 45 °, optimal erect-position point is selected in the measurement range of laser tracker according to object under test geometric parameter, and
Station bit number of points is reduced as far as possible in the case where selected erect-position point can be formed to the envelope network of object to be measured to reduce movement
The error that measuring instrument is brought, each erect-position point is numbered;
G, measure:1. laser tracker is fixed on a certain selected erect-position point;2. use hand-held touch sensor
Multipoint positioning is carried out to the large-sized object such as transformer, building base plane, determines its accurate location in the three-dimensional model;③
Comprehensive laser scanning is carried out using all surface of contactless high-rate laser scanner measuring targets, with reference to hand-held
The place that touch sensor device to hole, hole etc. are not easy to scan carries out pattern identification;4. by erect-position point number order movement laser with
Track instrument, records mobile air line distance and deviation angle, repeat step 2. -4. until all erect-position points are measured and finished;
H, measurand cloud data obtains, and preserves measurement result
I, data processing:The cloud data of gained is handled by erect-position point number order, completes cloud data obtained by each erect-position point
Filling-up hole, the operation such as trimming;On the basis of first selected erect-position point, according to other each erect-position points of record apart from base station
Distance and angle-data the modification coordinate system in site, each erect-position point obtained under unified coordinate system are surveyed data, then alignd
To the point cloud model at the whole station of transformer station;
J, transformer station's 3D physical models are generated:Point cloud model is generated into triangle meshes and then generates transformer station 3D entity moulds
Type.
The present invention combines the single-point tracking measurement technology and line laser structured light technology of laser tracker, and system can realize maximum
Three-dimensional measurement in 50 meters of measurement spaces, there is rigorous logicality, the characteristics of Project Realization is simple, and precision is reliable, existing
Can be without very high cost on the basis of laser tracker realizes the whole station arrangement of transformer station containing installations and facilities distribution three-dimensional point
Quick, the high accuracy acquisition of cloud data, complete progress three-dimensional geometry reconstruct, can be to repair technological transformation project verification distant place prospecting, meet an urgent need
Remotely anticipation and the long-range outdoor scene of the management of the job that requires special skills vehicle such as outdoor scene deduction, crane site safety afterwards deduce offer in advance for repairing
In-site modeling directly perceived and accurate.
Finally it should be noted that:Although the present invention and its advantage are described in detail above it should be appreciated that not
Various changes can be carried out in the case of the spirit and scope of the present invention being defined by the claims appended hereto, substitute and
Conversion.
Moreover, the scope of the present invention is not limited only to process described by specification, equipment, means, the tool of method and steps
Body embodiment.
One of ordinary skilled in the art will readily appreciate that from the disclosure, can be used according to the present invention
Perform the function essentially identical to corresponding embodiment described herein or obtain result, the existing and general essentially identical with it
Come process, equipment, means, method or step to be developed.
Therefore, appended claim be directed in the range of them include such process, equipment, means, method or
Person's step.
Claims (3)
1. a kind of transformer station's 3D outdoor scenes based on laser tracking technology redraw method, it is characterised in that:Comprise the following steps:
A, laser tracker is selected;
B, portable hand-held measuring terminals are selected:The wireless telecommunications touch sensor and one kind of a kind of hand-hold movable are held
The contactless high-rate laser scanner of formula;
C, commissioning device:Complete assembling, activation, the calibration of laser tracker and portable type measuring terminal;
D, the whole station arrangement of transformer station is understood, containing installations and facilities;
E, object and its geometric parameter to be measured are determined, object to be measured includes transformer station's building and all devices facility;
F, laser tracker erect-position point is selected, selected erect-position point forms the envelope network to object to be measured;
G, measure:Positioned using hand-held touch sensor and contactless high-rate laser scanner measuring targets,
The measurement of planeness, and comprehensive laser scanning;
H, measurand cloud data is obtained, preserves measurement result;
I, data processing:Filling-up hole, trimming are carried out to the cloud data of each measurement object on computers, then alignment obtains power transformation
Stand the point cloud model at whole station;
J, transformer station's 3D physical models are generated:Point cloud model is generated into triangle meshes and then generates transformer station's 3D physical models;
Using single-point tracking measurement technology, using a kind of hand-held touch sensor to large-sized objects such as transformer, buildings
Base plane carries out multipoint positioning, determines its accurate location in the three-dimensional model, boost line laser scanner technique quickly measures
Hidden place and it is difficult to measurement point.
2. a kind of transformer station's 3D outdoor scenes based on laser tracking technology according to claim 1 redraw method, its feature exists
In:Using line laser structured light technology, using a kind of contactless high-rate laser scanner, the data with 70000 points/second are adopted
Collection ability, and in the range of 8.5 meters, space length measurement error is no more than 50 μm.
3. a kind of transformer station's 3D outdoor scenes based on laser tracking technology according to claim 1 redraw method, its feature exists
In:Laser beam density is voluntarily adjusted according to testee surface appearance, surface does not need coating Disposal Measures, measuring targets
All surface carries out comprehensive laser scanning, is carried out with reference to the place that hand-held touch sensor device to hole, hole are not easy to scan
Pattern identifies.
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CN105806219B (en) * | 2016-03-23 | 2018-12-07 | 中国铁路设计集团有限公司 | The method for detecting III type track plates apparent size deviation of CRTS |
CN107909644A (en) * | 2017-11-09 | 2018-04-13 | 广东电网有限责任公司教育培训评价中心 | A kind of substation equipment 3 d model library method for building up |
CN108038910A (en) * | 2017-11-10 | 2018-05-15 | 广东电网有限责任公司教育培训评价中心 | The implementation method of substation's main equipment Virtual Reality Demonstration |
CN113790677A (en) * | 2021-08-27 | 2021-12-14 | 中车广东轨道交通车辆有限公司 | Three-dimensional measurement method for motor train unit body cover |
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