CN106403916A - Total station for measuring centering point based on digital image and working method thereof - Google Patents
Total station for measuring centering point based on digital image and working method thereof Download PDFInfo
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- CN106403916A CN106403916A CN201611096144.7A CN201611096144A CN106403916A CN 106403916 A CN106403916 A CN 106403916A CN 201611096144 A CN201611096144 A CN 201611096144A CN 106403916 A CN106403916 A CN 106403916A
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- digital image
- total powerstation
- centering
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- 238000000034 method Methods 0.000 title claims abstract description 20
- 238000010586 diagram Methods 0.000 description 6
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 description 2
- 240000007594 Oryza sativa Species 0.000 description 1
- 235000007164 Oryza sativa Nutrition 0.000 description 1
- 238000013507 mapping Methods 0.000 description 1
- 235000009566 rice Nutrition 0.000 description 1
Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C15/00—Surveying instruments or accessories not provided for in groups G01C1/00 - G01C13/00
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- Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Length Measuring Devices By Optical Means (AREA)
- Image Processing (AREA)
Abstract
The invention discloses a total station for measuring a centering point based on a digital image and a working method thereof. The total station comprises a centering component, wherein the centering component is a micro CCD camera arranged at the bottom of the central axis of an aiming part. The total station disclosed by the invention is erected to approach a known coordinate point A, a current centering coordinate point A' of the instrument is measured by using a digital image technology, and then the coordinates of any point are measured according to the two points of A' and B. Traditionally repeatedly alternating centering and leveling are changed, a centering early-stage debugging method of the known coordinate point is gradually approached, only leveling is needed, and accurate centering is not needed, so that the operational difficulty is reduced, and the work efficiency is greatly improved.
Description
Technical field
The invention belongs to engineering mapping technical field and in particular to based on digital image measure alignment total powerstation and its
Method of work.
Background technology
Total powerstation is engineering survey common instrument, during use must total powerstation precise alignment on a certain known coordinate point and
Accurately flatten, input this known point coordinates and another point coordinates known to orientation, aim at another known point direction and survey side as beginning,
Measure the horizontal angle of unknown point and distance to determine unknown point plane coordinates.Centering method has optics and laser alignment two at present
Kind of method, all needs centering, flattens multiple alternate repetition Step wise approximation, could accurate not only centering known point mark but also flatten instrument
Device, even if skilled survey crew also needs to spend 5～6 minutes, may expend more than half hour for beginner and survey
In the preliminary preparation of amount, operating efficiency is dragged down significantly.And due to being carried out to known coordinate point mark center using human eye
Identification, actually still suffers from certain error during precise alignment.
Content of the invention
The technical problem to be solved in the present invention is to provide a kind of total powerstation and its work side measuring alignment based on digital image
Method, total powerstation is set up at known coordinate point, obtains total powerstation current centering coordinate points based on digital image technology, only
Need to flatten, need not artificially move and carry out precise alignment known coordinate point, improve operating efficiency.
The present invention is achieved through the following technical solutions：
Measure the total powerstation of alignment based on digital image, including aligning partses, described aligning partses are to be arranged in alidade
The miniature CCD device for shooting of axis bottom.
The further improvement project of the present invention is that described miniature CCD device for shooting pixel is not less than 1,000,000 pixels.For ensureing
Distance shared by each pixel in image reaches the above precision of millimeter, and then ensures the finally accurate of current centering coordinate points measuring and calculating value
Property high.
The present invention further improvement project is that described miniature CCD device for shooting is 50 lis away from geographical coordinates point vertical height
Rice is to 200 centimetres.
The present invention further improvement project is, including keyboard operation panel, keyboard operation panel is provided with shooting button,
Shooting button signal connects miniature CCD device for shooting.Convenient operation.
Measure the total powerstation method of work of alignment based on digital image, by above-mentioned, alignment is measured based on digital image
Total powerstation is located above known coordinate point A by tripot, so that coordinate points A is fallen in CCD device for shooting coverage, whole
Flat total powerstation, rotation total powerstation alidade makes lens barrel aim at prism centers and range finding on known orientation point B direction, opens CCD and claps
Take the photograph device shoot function, obtain and there is known coordinate point A and current total powerstation centering coordinate points A ' digital image；
Measuring and calculating A ' point coordinates：
Known A point coordinates (XA,YA）, B point coordinates（(XB,YB）, then AB grid azimuth α=arcTan ((YB-YA)/(XB-XA)),
2 points of A, B is apart from AB=,
A ', 2 points of B are found range by total powerstation apart from A ' B and determine,
2 points of A, A ' is determined by image technique apart from A A ', arranges the label of regular figure, label in coordinate points A
Central point is overlapping with coordinate points A it is known that certain segment distance of label is R, label in digital figure software identification shot image
Certain segment distance pixel r, and the pixel coordinate according to label central point A and A ' pixel coordinate of centre try to achieve A A ' as
Element is apart from d, and calculates the actual range of A A '：A A′=,
As A B+A A ' ＞ A ' B and A ' B+A A ' ＞ A B, A, 3 points of B, A ' surround triangle, according to the cosine law,
Then,
If A point is on the right side of A ' B, A A ' grid bearing angle beta=α-∠ A, if A point is on the left of A ' B, A A ' grid bearing angle beta=α+∠
A, that is, obtain centering A ' point coordinates, XA′= XA+ A A ' Cos β, YA′= YA+A A′Sinβ；
As A B+A A ' ≯ A ' B and A ' B+A A ' ≯ A B, A, 3 points of B, A ' point-blank, if A ' B+A
During A '=A B, A ' dead ahead in A B direction, that is, obtain centering A ' point coordinates, XA′= XA+ A A ' Cos α, YA′= YA+
A A ' Sin α, if A ' B-A A '=A B when, A ' dead astern in A B direction, that is, obtain centering A ' point coordinates, XA′=
XA- A A ' Cos α, YA′= YA- A A ' Sin α, if A ' B=A B when, A ' surface in A point, that is, obtain centering A ' point
Coordinate, XA′= XA, YA′= YA .
Point Coordinates can be measured further according to A ', B two point coordinates.
The present invention further improvement project is that described label is circle, and R is circular radius, or is labeled as equilateral three
Angular, R is the triangle length of side, or is labeled as regular polygon, and R is polygonal side length.
The present invention further improvement project is that total powerstation centering coordinate points A ' pixel coordinate determines method, first claps one
Digital image, then " one digital image of bat, identifies two digital images by digital figure software accurately to rotate 180 ° 00 ' 00
The pixel coordinate of overlapping region central point is A ' pixel coordinate in shot image.Because the centering coordinate points A ' of total powerstation is preferable
It is digital image center picture point under state, but because equipment is installed and can produce skew during using, the present invention enters to this
A ' pixel coordinate of having gone is corrected determination.
The present invention compared with prior art, has following obvious advantage：
Total powerstation of the present invention is set up in close to known coordinate point A, records the current centering of instrument using digital image technology and sits
Punctuate A ', measures Point Coordinates further according to A ', B two point coordinates.Change conventional multi alternate repetition centering, leveling, progressively
Approach the early stage debugging method of known coordinate point centering it is only necessary to leveling, without precise alignment, reduce operation easier, greatly improve
Operating efficiency.
Brief description
Fig. 1 is total powerstation structural representation of the present invention.
Fig. 2 is to comprise A, A ' digital image schematic diagram.
Fig. 3 is A point grid azimuth schematic diagram when A ' right side.
Fig. 4 is A point grid azimuth schematic diagram when A ' left side.
Fig. 5 is A ' dead ahead schematic diagram in A B direction.
Fig. 6 is A ' dead astern schematic diagram in A B direction.
Fig. 7 determines schematic diagram for total powerstation centering coordinate points A ' pixel coordinate.
Specific embodiment
As shown in figure 1, total powerstation of the present invention includes leveling pedestal 1, alidade 2 is installed in pedestal 1 top, sighting
The miniature CCD device for shooting 3 replacing former instrument aligning partses is installed in portion 2 axis bottom, and described miniature CCD device for shooting pixel is not little
In 1,000,000 pixels.Described miniature CCD device for shooting is about 100 centimetres away from geographical coordinates point vertical height.
Operate for convenience and shooting button is provided with keyboard operation panel, shooting button signal connects miniature CCD and shoots
Device.
Total powerstation method of work is as follows, is made marks thing with the roundel 4 of known radius R first on known coordinate point A,
Label central point is overlapping with coordinate points A, then total powerstation of the present invention is fixed on the special tripod of engineering survey, beats
Opening three legs of tripod makes the rough vertical of centre to above the mark of known coordinate point A and frame head is approximate horizontal, makes seat
Punctuate A falls in CCD device for shooting coverage, treads foot rest, then passes through three foot screws on total powerstation and accurately flattens instrument,
Rotation total powerstation alidade makes lens barrel aim at prism centers and range finding on known orientation point B direction, opens CCD device for shooting and shoots work(
Can, obtain and there is known coordinate point A and current total powerstation centering coordinate points A ' digital image；
Measuring and calculating A ' point coordinates：
Known A point coordinates (XA,YA）, B point coordinates（(XB,YB）, then AB grid azimuth α=arcTan ((YB-YA)/(XB-XA)),
2 points of A, B is apart from AB=,
A ', 2 points of B are found range by total powerstation apart from A ' B and determine,
2 points of A, A ' is determined by image technique apart from A A ', i.e. label radius picture in digital figure software identification shot image
Plain r, and the pixel coordinate according to label central point A and A ' pixel coordinate of centre try to achieve A A ' pixel distance d（As
Shown in Fig. 2）, and calculate the actual range of A A '：A A′=,
As A B+A A ' ＞ A ' B and A ' B+A A ' ＞ A B, A, 3 points of B, A ' surround triangle, according to the cosine law,
Then,
If A point is on the right side of A ' B, A A ' grid bearing angle beta=α-∠ A（As shown in Figure 3）If, A point on the left of A ' B, A A ' coordinate side
Parallactic angle β=α+∠ A（As shown in Figure 4）, that is, obtain centering A ' point coordinates, XA′= XA+ A A ' Cos β, YA′= YA+A A′Sin
β；
As A B+A A ' ≯ A ' B and A ' B+A A ' ≯ A B, A, 3 points of B, A ' point-blank, if A ' B+A
During A '=A B, A ' dead ahead in A B direction（As shown in Figure 5）, that is, obtain centering A ' point coordinates, XA′= XA+ A A′
Cos α, YA′= YA+ A A ' Sin α, if A ' B-A A '=A B when, A ' dead astern in A B direction（As shown in Figure 6）,
Obtain centering A ' point coordinates, XA′= XA- A A ' Cos α, YA′= YA- A A ' Sin α, if A ' B=A B when, A ' in A point
Surface, that is, obtain centering A ' point coordinates, XA′= XA, YA′= YA .
Point Coordinates can be measured further according to A ', B two point coordinates.
Because the centering coordinate points A ' of total powerstation is ideally digital image center picture point, but because equipment is installed
And skew can be produced during using, the present invention has carried out A ' pixel coordinate and has been corrected determination to this.Total powerstation centering is sat
Punctuate A ' pixel coordinate determines method, first claps a digital image, more accurately rotates 180 ° 00 ' 00 " claps a digital image, leads to
Cross digital figure software and identify that the central point pixel coordinate O of two digital image overlapping regions is A ' pixel seat in shot image
Mark（As shown in Figure 7）.
Claims (7)
1. based on digital image measure alignment total powerstation, including aligning partses it is characterised in that：Described aligning partses are peace
It is contained in the miniature CCD device for shooting of alidade axis bottom.
2. according to claim 1 based on digital image measure alignment total powerstation it is characterised in that：Described miniature
CCD device for shooting pixel is not less than 1,000,000 pixels.
3. according to claim 1 and 2 based on digital image measure alignment total powerstation it is characterised in that：Described micro-
Type CCD device for shooting is 50 centimetres to 200 centimetres away from geographical coordinates point vertical height.
4. according to claim 1 based on digital image measure alignment total powerstation it is characterised in that：Including keyboard behaviour
Make panel, keyboard operation panel is provided with shooting button, shooting button signal connects miniature CCD device for shooting.
5. based on digital image measure alignment total powerstation method of work it is characterised in that：
Any one total powerstation of Claims 1-4 is located above known coordinate point A by tripot, so that coordinate points A is fallen
Enter in CCD device for shooting coverage, flatten total powerstation, rotation total powerstation alidade makes lens barrel aim on known orientation point B direction
Prism centers and range finding, open CCD device for shooting shoot function, obtain and have known coordinate point A and current total powerstation centering coordinate
Point A ' digital image；
Measuring and calculating A ' point coordinates：
Known A point coordinates (XA,YA）, B point coordinates（(XB,YB）, then AB grid azimuth α=arcTan ((YB-YA)/(XB-XA)),
2 points of A, B is apart from AB=,
A ', 2 points of B are found range by total powerstation apart from A ' B and determine,
2 points of A, A ' is determined by image technique apart from A A ', arranges the label of regular figure, mark on known coordinate point A
Note thing central point is overlapping with coordinate points A it is known that certain segment distance of label is R, and the identification of digital figure software determines digital image
Pixel r of middle label segment distance R, and A ' pixel seat of the pixel coordinate according to label central point A and centre
Mark tries to achieve A A ' pixel distance d, and calculates the actual range of A A '：A A′=,
As A B+A A ' ＞ A ' B and A ' B+A A ' ＞ A B, A, 3 points of B, A ' surround triangle, according to the cosine law,
Then,
If A point is on the right side of A ' B, A A ' grid bearing angle beta=α-∠ A, if A point is on the left of A ' B, A A ' grid bearing angle beta=α+∠
A, that is, obtain centering A ' point coordinates, XA′= XA+ A A ' Cos β, YA′= YA+A A′Sinβ；
As A B+A A ' ≯ A ' B and A ' B+A A ' ≯ A B, A, 3 points of B, A ' point-blank, if A ' B+A
During A '=A B, A ' dead ahead in A B direction, that is, obtain centering A ' point coordinates, XA′= XA+ A A ' Cos α, YA′= YA+
A A ' Sin α, if A ' B-A A '=A B when, A ' dead astern in A B direction, that is, obtain centering A ' point coordinates, XA′=
XA- A A ' Cos α, YA′= YA- A A ' Sin α, if A ' B=A B when, A ' surface in A point, that is, obtain centering A ' point
Coordinate, XA′= XA, YA′= YA ；
Point Coordinates can be measured further according to A ', B two point coordinates.
6. according to claim 5 based on digital image measure alignment total powerstation method of work it is characterised in that：Institute
Stating label is circle, and R is circular radius, or is labeled as equilateral triangle, and R is the triangle length of side, or is labeled as regular polygon,
R is polygonal side length.
7. according to claim 5 measured to the total powerstation method of work at center based on digital image it is characterised in that：Entirely
Instrument centering coordinate points A ' pixel coordinate of standing determines method, first claps a digital image, more accurately 180 ° 00 ' 00 of rotation " claps one
Digital image, by digital figure software identify two digital image overlapping regions central point pixel coordinate O be bat figure
A ' pixel coordinate in picture.
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107449394A (en) * | 2017-06-30 | 2017-12-08 | 沈阳建筑大学 | Total powerstation electronics center support system and its centering automatic compensating method |
| CN108151717A (en) * | 2017-11-15 | 2018-06-12 | 四川建筑职业技术学院 | A kind of Full automatic quadrat method based on BIM systems |
| CN109813222A (en) * | 2019-03-10 | 2019-05-28 | 河南省水利勘测有限公司 | Well room measurement of coordinates auxiliary device and measurement method |
| CN110174095A (en) * | 2019-05-30 | 2019-08-27 | 淮阴工学院 | A kind of total station and its measurement horizontal angle method of digital image centering |
| CN111521167A (en) * | 2020-06-17 | 2020-08-11 | 陕西航光空间技术有限公司 | Centering instrument for automatically measuring centering point by surveying and mapping instrument based on image control and working method thereof |
| CN111238453B (en) * | 2018-11-28 | 2023-09-05 | 赫克斯冈技术中心 | Intelligent positioning module |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107449394A (en) * | 2017-06-30 | 2017-12-08 | 沈阳建筑大学 | Total powerstation electronics center support system and its centering automatic compensating method |
| CN107449394B (en) * | 2017-06-30 | 2020-02-28 | 沈阳建筑大学 | Electronic centering system of total station and centering automatic compensation method thereof |
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| CN110174095A (en) * | 2019-05-30 | 2019-08-27 | 淮阴工学院 | A kind of total station and its measurement horizontal angle method of digital image centering |
| CN110174095B (en) * | 2019-05-30 | 2021-03-16 | 淮阴工学院 | Total station instrument for digital image centering and method for measuring horizontal angle by using total station instrument |
| CN111521167A (en) * | 2020-06-17 | 2020-08-11 | 陕西航光空间技术有限公司 | Centering instrument for automatically measuring centering point by surveying and mapping instrument based on image control and working method thereof |
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| Publication number | Publication date |
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| CN106403916B (en) | 2018-10-02 |
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Denomination of invention: A Total Station Based on Digital Image for Measuring Alignment Points and Its Working Method Effective date of registration: 20221207 Granted publication date: 20181002 Pledgee: Huaian Qingjiang puyintai financing Company limited by guarantee Pledgor: HUAIAN CONSTRUCTION ENGINEERING QUALITY INSPECTION CENTER Co.,Ltd. Registration number: Y2022980024845 |
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Granted publication date: 20181002 Pledgee: Huaian Qingjiang puyintai financing Company limited by guarantee Pledgor: HUAIAN CONSTRUCTION ENGINEERING QUALITY INSPECTION CENTER Co.,Ltd. Registration number: Y2022980024845 |