CN103471519A - Method for measuring deformation of power transmission and transformation tower by adoption of prism-free photoelectric total station - Google Patents

Method for measuring deformation of power transmission and transformation tower by adoption of prism-free photoelectric total station Download PDF

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Publication number
CN103471519A
CN103471519A CN2013104492871A CN201310449287A CN103471519A CN 103471519 A CN103471519 A CN 103471519A CN 2013104492871 A CN2013104492871 A CN 2013104492871A CN 201310449287 A CN201310449287 A CN 201310449287A CN 103471519 A CN103471519 A CN 103471519A
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China
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coordinate
pylon
total station
point
station survey
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CN2013104492871A
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Chinese (zh)
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CN103471519B (en
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刘纯
唐远富
欧阳克俭
陈红冬
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国家电网公司
国网湖南省电力公司电力科学研究院
湖南省湘电试研技术有限公司
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Abstract

The invention discloses a method for measuring deformation of a power transmission and transformation tower by the adoption of a prism-free photoelectric total station. The method includes the steps that an analysis coordinate system is established with the power transmission tower as the center, a measurement coordinate system is established with the photoelectric total station as the center, a rotating transformation matrix and a translational transformation matrix from the measurement coordinate system to the analysis coordinate system are calculated, coordinate values of points are measured in the measurement coordinate system, then, the coordinate values of the points are converted into the analysis coordinate system, measurement line types are compared and analyzed, and then the deformation direction and the quantity values are acquired. Due to the fact that the analysis coordinate system and the measurement coordinate system are two independent coordinate systems, fixed points do not need to be set in the measurement process, the measurement coordinate system does not need to be converted, therefore, according to the method, measurement errors of the fixed points in a conversion measurement station are eliminated, and measurement accuracy and measurement efficiency are improved.

Description

A kind of method of applying without the distortion of prism photoelectricity total station survey power transmission and transformation pylon

Technical field

The present invention relates to a kind of structure measuring method, particularly a kind of method of applying without the distortion of prism photoelectricity total station survey power transmission and transformation pylon.

Background technology

Along with the continuous upgrading of grid electric pressure, to the also progressively raising of requirement of power transmission and transformation pylon height and load-bearing capacity.And these power transmission and transformation pylons are in the physical environments such as ice and snow, strong wind, its distortion directly has influence on reliability and the security of equipment.The space structure that the power transmission and transformation pylon is is normally connected and composed by bolt bias by single angle, have that size is large, distortion is large, measuring point is many and the characteristics such as 3 D deformation, and it is a technical barrier that the application total powerstation carries out accurate deformation measurement to it.

In the use total powerstation carries out measuring process, because the laser beam emission has linear characteristics, strong to some disguises or be blocked impact point, must be by conversion total station survey website (abbreviation changes station), to the direct method of measuring of impact point, again the lower impact point unification of measuring of different azimuth (different website) is transformed in same coordinate system, and then determines the mutual alignment relation between all impact points.Change the error of measuring at station and be mainly derived from three aspects: range error, angle error and point of fixity error, wherein range error is all relevant to the instrument pointing accuracy with angle error, and the point of fixity error is when coordinate transform, mainly containing point of fixity participates in calculating, determine that coordinate system changes distance and the angle changed before and after station, once the point of fixity position, twice measurement, change, all can giving converts introduces error.

The no prism leveling technology is based on the phase method principle, and the laser beam of sending is very narrow, can very accurately get on target, guarantees high-precision range observation.With the prism measurement is arranged, compare, its advantage is as long as the reflecting medium of measuring point meets the condition of no prism leveling, just need on measuring point, not place prism, can measure the three-dimensional coordinate of this point.Technique is widely used in worldwide, and it has good technical manual: high precision, on a large scale, there is visible red laser spot and very little beam diameter.

Summary of the invention

Technical matters to be solved by this invention is, for the prior art deficiency, provide a kind of method of applying without the distortion of prism photoelectricity total station survey power transmission and transformation pylon, by setting up two coordinate systems, point of fixity is set and changes the error that cause at station in avoiding measuring, improve measuring accuracy and efficiency.

For solving the problems of the technologies described above, the technical solution adopted in the present invention is: a kind of method of applying without the distortion of prism photoelectricity total station survey power transmission and transformation pylon, and the method is:

1) set up pylon and analyze coordinate system: choose bottommost horizontal corner steel in the pylon visual range, if two end points of described bottommost horizontal corner steel are respectively A, B point, the tower foundation planar central of take is analyzed the initial point of coordinate system as pylon, it is to point to the B point from the A point that pylon is analyzed the coordinate system X-direction, Y direction is for straight up, and Z-direction is determined by the right-hand rule of space vector;

2) set up the total station survey coordinate system: in the scope of ordering at visual above-mentioned A, B, set up total powerstation, the true origin that the described total powerstation central point of take is the total station survey coordinate system, take from initial point sensing A point or B point place direction is total station survey coordinate system X-direction, and the angle of total station survey coordinate system X-axis and above-mentioned pylon analysis coordinate system X-axis or X-axis extended line be less than 90, the direction straight up of take is total station survey coordinate system Y direction, total station survey coordinate system Z-direction is determined by the right-hand rule of space vector, and is made described total station survey coordinate system X-Z plane and above-mentioned pylon analyze the X-Z plane parallel of coordinate system;

3) calculate the total station survey coordinate and be tied to pylon analysis Conversion Matrix of Coordinate: the coordinate figure of measuring A, B in the total station survey coordinate system is respectively with , calculate the X-axis angle that pylon is analyzed coordinate system and total station survey coordinate system , , obtain the rotational transform matrix; Analyze in coordinate system and calculate the coordinate figure that A is ordered at pylon , obtain the translation transformation matrix;

4) measure that electric transmission pole tower is set a roof beam in place or the distortion of electric transmission pole tower trestle: choose that electric transmission pole tower is set a roof beam in place or the electric transmission pole tower trestle on the measuring point that is evenly distributed more than 5, measure the D coordinates value of each measuring point in the total station survey coordinate system, the D coordinates value of each measuring point is multiplied by the rotational transform matrix, then respectively with the addition of translation transformation matrix, obtain each measuring point and analyze the coordinate figure in coordinate system at pylon, by the gained coordinate figure, more the initial line style of the line style of corresponding coordinate points and power transmission and transformation pylon obtains that electric transmission pole tower is set a roof beam in place or electric transmission pole tower trestle deformation direction and be out of shape value.

Compared with prior art, the beneficial effect that the present invention has is: the present invention proposes a kind of application photoelectricity total station survey power transmission tower frame deformation method, set up two independently coordinate systems---analyze coordinate system and measure coordinate system, analyze coordinate system with power transmission tower frame self structure installation, measure coordinate system and set up setting in conjunction with total powerstation, the computation and measurement coordinate is tied to the rotation peace transfer of analyzing coordinate system and changes matrix, complete corresponding measurement in measuring coordinate system, then all coordinate conversion are analyzed to analyzing coordinate system, relatively obtain direction and the value of distortion by line style, method of the present invention arranges the problems such as point of fixity and converted measurement coordinate points in having solved and having measured, and guarantees each measurement data independence, has eliminated the measuring error of point of fixity in the converted measurement website, has improved measuring accuracy and efficiency.

The accompanying drawing explanation

Fig. 1 is the inventive method process flow diagram;

Fig. 2 is that one embodiment of the invention is that power transmission tower frame is analyzed the coordinate system schematic diagram;

Fig. 3 is that one embodiment of the invention is analyzed coordinate system and the measurement coordinate system arranges graph of a relation.

Embodiment

As shown in Figure 1, method of the present invention comprises the following steps:

The 1st step, set up pylon and analyze coordinate system.

Choose bottommost horizontal corner steel in the pylon visual range, as shown in Figure 2, two end points of angle steel are set and are respectively A, B point.The initial point of pylon coordinate system arranges pylon foot (basis) planar central, and X-direction is that the A point points to the B point, and Y direction is for straight up, and Z-direction is determined by the right-hand rule of space vector.

The 2nd step, set up the total station survey coordinate system.

Set up arbitrarily total powerstation in visual A, B point range, true origin is the total powerstation central point, X-axis is that initial point points to A(or B) some place direction, be less than 90 with the angle of analyzing X-direction in coordinate system, Y direction straight up, Z-direction is definite by the right-hand rule of space vector, and the setting of coordinate and measurement coordinate is analyzed as shown in Figure 3 in total station survey coordinate system X-Z plane and the X-Z plane parallel of analyzing coordinate system.

The 3rd step, the computation and measurement coordinate is tied to the analysis Conversion Matrix of Coordinate.

The coordinate figure of measuring A, B in measuring coordinate system is respectively with , computational analysis coordinate system and the X-axis angle of measuring coordinate system , , the rotational transform matrix is ; Calculate the coordinate figure that A is ordered in analyzing coordinate system , the translation transformation matrix is .

The 4th step, electric transmission pole tower (post) deformation measurement analysis of setting a roof beam in place.

Choose electric transmission pole tower (post) the upper measuring point be evenly distributed more than 5 of setting a roof beam in place, measure the D coordinates value of each point in measuring coordinate system, add the translation transformation matrix with the rotational transform Matrix Multiplication with coordinate figure, obtain the coordinate figure of measuring point in analyzing coordinate system, the initial line style of the line style of gained coordinate points and power transmission and transformation pylon relatively can be obtained to beam (post) deformation direction and value.

When without prism photoelectricity total powerstation, the power transmission and transformation pylon being carried out to deformation observation, owing between observation station and object of observation, having barrier, affected the observation of the horizontal corner steel of pylon foot.The present invention observes with total powerstation, and the visual range in the present invention refers to that total powerstation can observe the scope of pylon foot horizontal corner steel.

In order to obtain more accurately the deformation curve of pylon, the present invention chooses 5 above measuring points, guarantees measuring accuracy simultaneously and measures efficiency.

Claims (3)

1. a method of applying without the distortion of prism photoelectricity total station survey power transmission and transformation pylon, is characterized in that, the method is:
1) set up pylon and analyze coordinate system: choose bottommost horizontal corner steel in the pylon visual range, if two end points of described bottommost horizontal corner steel are respectively A, B point, the tower foundation planar central of take is analyzed the initial point of coordinate system as pylon, it is to point to the B point from the A point that pylon is analyzed the coordinate system X-direction, Y direction is for straight up, and Z-direction is determined by the right-hand rule of space vector;
2) set up the total station survey coordinate system: in the scope of ordering at visual above-mentioned A, B, set up total powerstation, the true origin that the described total powerstation central point of take is the total station survey coordinate system, take from initial point sensing A point or B point place direction is total station survey coordinate system X-direction, and the angle of total station survey coordinate system X-axis and above-mentioned pylon analysis coordinate system X-axis or X-axis extended line be less than 90, the direction straight up of take is total station survey coordinate system Y direction, total station survey coordinate system Z-direction is determined by the right-hand rule of space vector, and is made described total station survey coordinate system X-Z plane and above-mentioned pylon analyze the X-Z plane parallel of coordinate system;
3) calculate the total station survey coordinate and be tied to pylon analysis Conversion Matrix of Coordinate: the coordinate figure of measuring A, B in the total station survey coordinate system is respectively with , calculate the X-axis angle that pylon is analyzed coordinate system and total station survey coordinate system , , obtain the rotational transform matrix; Analyze in coordinate system and calculate the coordinate figure that A is ordered at pylon , obtain the translation transformation matrix;
4) measure that electric transmission pole tower is set a roof beam in place or the distortion of electric transmission pole tower trestle: choose that electric transmission pole tower is set a roof beam in place or the electric transmission pole tower trestle on the measuring point that is evenly distributed more than 5, measure the D coordinates value of each measuring point in the total station survey coordinate system, the D coordinates value of each measuring point is multiplied by the rotational transform matrix, then respectively with the addition of translation transformation matrix, obtain each measuring point and analyze the coordinate figure in coordinate system at pylon, by the gained coordinate figure, more the initial line style of the line style of corresponding coordinate points and power transmission and transformation pylon obtains that electric transmission pole tower is set a roof beam in place or electric transmission pole tower trestle deformation direction and be out of shape value.
2. application according to claim 1, without the method for prism photoelectricity total station survey power transmission and transformation pylon distortion, is characterized in that, in described step 3), the rotational transform matrix is .
3. application according to claim 1, without the method for prism photoelectricity total station survey power transmission and transformation pylon distortion, is characterized in that, in described step 3), the translation transformation matrix is .
CN201310449287.1A 2013-09-27 2013-09-27 A kind of method applied without the deformation of prism photoelectricity total station survey power transmission and transformation pylon CN103471519B (en)

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Cited By (11)

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CN104406565A (en) * 2014-11-13 2015-03-11 甘肃酒钢集团宏兴钢铁股份有限公司 Method for converting and monitoring structure deformation by utilizing coordinate system
CN105136128A (en) * 2015-08-27 2015-12-09 中国航天空气动力技术研究院 Airframe structure measuring method based on two-point positioning
CN105806246A (en) * 2016-05-23 2016-07-27 中国长江三峡集团公司 Measuring method for ship lift chamber structure deformation
CN106522285A (en) * 2016-10-08 2017-03-22 中国电力科学研究院 Measuring method for foundation displacement of power transmission tower
CN106813588A (en) * 2015-11-30 2017-06-09 中国石油化工股份有限公司 A kind of External floating roof tank group deformation monitoring method
CN106813589A (en) * 2015-11-30 2017-06-09 中国石油化工股份有限公司 With External floating roof tank real-time deformation monitoring method
CN106813587A (en) * 2015-11-30 2017-06-09 中国石油化工股份有限公司 A kind of External floating roof tank DEFORMATION MONITORING SYSTEM
CN106813590A (en) * 2015-11-30 2017-06-09 中国石油化工股份有限公司 External floating roof tank deformation detection method
CN106813586A (en) * 2015-11-30 2017-06-09 中国石油化工股份有限公司 A kind of DEFORMATION MONITORING SYSTEM of External floating roof tank group
CN106840011A (en) * 2015-12-03 2017-06-13 北京国网富达科技发展有限责任公司 Steel tower deformation measuring device and its method
CN109945795A (en) * 2019-04-03 2019-06-28 山西省汾河二库管理局 A kind of robot measurement performance inspection device and method

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Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104406565A (en) * 2014-11-13 2015-03-11 甘肃酒钢集团宏兴钢铁股份有限公司 Method for converting and monitoring structure deformation by utilizing coordinate system
CN105136128A (en) * 2015-08-27 2015-12-09 中国航天空气动力技术研究院 Airframe structure measuring method based on two-point positioning
CN106813586A (en) * 2015-11-30 2017-06-09 中国石油化工股份有限公司 A kind of DEFORMATION MONITORING SYSTEM of External floating roof tank group
CN106813589B (en) * 2015-11-30 2019-09-10 中国石油化工股份有限公司 With External floating roof tank real-time deformation monitoring method
CN106813590B (en) * 2015-11-30 2019-09-10 中国石油化工股份有限公司 External floating roof tank deformation detection method
CN106813588A (en) * 2015-11-30 2017-06-09 中国石油化工股份有限公司 A kind of External floating roof tank group deformation monitoring method
CN106813589A (en) * 2015-11-30 2017-06-09 中国石油化工股份有限公司 With External floating roof tank real-time deformation monitoring method
CN106813587A (en) * 2015-11-30 2017-06-09 中国石油化工股份有限公司 A kind of External floating roof tank DEFORMATION MONITORING SYSTEM
CN106813590A (en) * 2015-11-30 2017-06-09 中国石油化工股份有限公司 External floating roof tank deformation detection method
CN106813586B (en) * 2015-11-30 2019-09-10 中国石油化工股份有限公司 A kind of DEFORMATION MONITORING SYSTEM of External floating roof tank group
CN106840011A (en) * 2015-12-03 2017-06-13 北京国网富达科技发展有限责任公司 Steel tower deformation measuring device and its method
CN105806246A (en) * 2016-05-23 2016-07-27 中国长江三峡集团公司 Measuring method for ship lift chamber structure deformation
CN106522285A (en) * 2016-10-08 2017-03-22 中国电力科学研究院 Measuring method for foundation displacement of power transmission tower
CN109945795A (en) * 2019-04-03 2019-06-28 山西省汾河二库管理局 A kind of robot measurement performance inspection device and method

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