CN103471519B - A kind of method applied without the deformation of prism photoelectricity total station survey power transmission and transformation pylon - Google Patents
A kind of method applied without the deformation of prism photoelectricity total station survey power transmission and transformation pylon Download PDFInfo
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- CN103471519B CN103471519B CN201310449287.1A CN201310449287A CN103471519B CN 103471519 B CN103471519 B CN 103471519B CN 201310449287 A CN201310449287 A CN 201310449287A CN 103471519 B CN103471519 B CN 103471519B
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Abstract
The invention discloses a kind of method applied without the deformation of prism photoelectricity total station survey power transmission and transformation pylon, set up centered by power transmission tower frame and analyze coordinate system, set up centered by photoelectricity total powerstation and measure coordinate system, computation and measurement coordinate is tied to analyze the rotational transformation matrix of coordinate system and translation transformation matrix, each point coordinate value is measured in measuring coordinate system, then each point coordinate value is transformed in analysis coordinate system, is analyzed, to measuring line style, direction and the value that acquisition deforms.It is two independent coordinate systems owing to analyzing coordinate system and measurement coordinate system, without arranging fixing point during measuring, without converted measurement coordinate system, fixing point measure error during therefore the method for the present invention eliminates converted measurement website, improve certainty of measurement and efficiency.
Description
Technical field
The present invention relates to a kind of structure measuring method, particularly a kind of application is without prism photoelectricity total station survey transmission tower
The method of frame deformation.
Background technology
Along with the continuous upgrading of grid electric pressure, to the requirement of power transmission and transformation tower height and bearing capacity also by
Step improves.And these power transmission and transformation pylons are in the natural environment such as ice and snow, strong wind, its deformation directly influence equipment reliability and
Security.Power transmission and transformation pylon is typically the space structure that connected and composed by single angle bolt bias, has that size is big, deformation
Greatly, measuring point is many and the feature such as 3 D deformation, and it is a technical barrier that application total powerstation carries out accurate deformation measurement to it.
During using total powerstation to measure, owing to radiating laser beams has linear feature, hidden to some
Property relatively strong the or impact point that is blocked, it is necessary to by conversion total station survey website (abbreviation changes station), measurement direct to impact point
Method, then be transformed into unified for the impact point measured under different azimuth (different website) in same coordinate system, and then determine
Mutual alignment relation between all impact points.Change the error measured at station and be mainly derived from three aspects: range error, angle measurement are by mistake
Difference and fixing point error, wherein range error is all relevant to instrument sight precision with angle error, and fixing point error is to sit
During mark conversion, mainly there is fixing point to participate in calculating, determine that coordinate system changes the distance and angle, once fixing point position changed before and after station
Put and change when measuring for twice, introduce error all can to conversion.
No prism leveling technology is based on phase method principle, and the laser beam sent is the narrowest, can highly precisely get to
In target, it is ensured that high-precision range measurement.Compared with having prism measurement, as long as the reflecting medium that its advantage is measuring point meets
The condition of no prism leveling, avoids the need for placing prism on measuring point, can measure the three-dimensional coordinate of this point.Technique exists
Being widely used in worldwide, it has a good technical specification: in high precision, on a large scale, have visible red
Look laser spot and the least beam diameter.
Summary of the invention
The technical problem to be solved is, not enough for prior art, it is provided that a kind of application is complete without prism photoelectricity
The method of power transmission and transformation pylon deformation measured by instrument of standing, by setting up two coordinate systems, it is to avoid arranges fixing point in measurement and changes
The error that station is caused, improves certainty of measurement and efficiency.
For solving above-mentioned technical problem, the technical solution adopted in the present invention is: a kind of application is without prism photoelectricity total powerstation
The method measuring the deformation of power transmission and transformation pylon, the method is:
1) set up pylon and analyze coordinate system: choose bottommost horizontal corner steel in pylon visual range, if described bottommost water
Two end points of straight angle steel are respectively A, B point, analyze the initial point of coordinate system with tower foundation planar central for pylon, and pylon analysis is sat
Mark system X-direction is to point to B point from A point, and Y direction is straight up, and Z-direction is determined by the right-hand rule of space vector；
2) total station survey coordinate system is set up: in the range of visual above-mentioned A, B point, set up total powerstation, with described total powerstation
Central point is the origin of coordinates of total station survey coordinate system, to point to A point or direction, B point place for total station survey seat from initial point
Mark system X-direction, and total station survey coordinate system X-axis is little with the angle theta that above-mentioned pylon analyzes coordinate system X-axis or X-axis extended line
In 90 degree, with direction straight up for total station survey coordinate system Y direction, total station survey coordinate system Z-direction is by space
The right-hand rule of vector determines, and the X-Z making described total station survey coordinate system X-Z plane and above-mentioned pylon analyze coordinate system puts down
Face is parallel；
3) calculate total station survey coordinate and be tied to pylon analysis Conversion Matrix of Coordinate: survey in total station survey coordinate system
The coordinate value of amount A, B is respectively (XA, YA, ZA) and (XB, YB, ZB), calculates pylon and analyzes coordinate system and total station survey coordinate
The X-axis angle theta of system,Obtain rotational transformation matrix；A point is calculated in coordinate system analyzed by pylon
Coordinate value (xA, yA, zA), obtains translation transformation matrix；
4) measure power transmission tower to set a roof beam in place or the deformation of power transmission tower trestle: choose power transmission tower and set a roof beam in place or on power transmission tower trestle more than 5
The measuring point being evenly distributed, measures the D coordinates value of each measuring point in total station survey coordinate system, by the three-dimensional coordinate of each measuring point
Value is multiplied by rotational transformation matrix, is added with translation transformation matrix the most respectively, then obtain each measuring point in coordinate system analyzed by pylon
Coordinate value, the line style of coordinate points corresponding for gained coordinate value is compared with the initial line style of power transmission and transformation pylon and i.e. obtains power transmission tower
Set a roof beam in place or power transmission tower trestle deformation direction and deformation value.
Compared with prior art, the had the beneficial effect that present invention of the present invention proposes a kind of application photoelectricity and entirely stands
Power transmission tower frame deformation method measured by instrument, establishes two independent coordinate systems and analyzes coordinate system and measure coordinate system, analyzes
Coordinate system is arranged with power transmission tower frame construction itself, measures coordinate system and combines total powerstation and set up and arrange, and computation and measurement coordinate is tied to point
The rotation peace of analysis coordinate system moves transition matrix, completes to measure accordingly, then by all Coordinate Conversion in measuring coordinate system
It is analyzed to analyzing coordinate system, is compared direction and the value obtaining deformation by line style；The method of the present invention solves measurement
In the problem such as fixing point and converted measurement coordinate points is set, it is ensured that every time measurement data independence, eliminate converted measurement website
The measure error of middle fixing point, improves certainty of measurement and efficiency.
Accompanying drawing explanation
Fig. 1 is the inventive method flow chart；
Fig. 2 be one embodiment of the invention be power transmission tower frame analyze coordinate system schematic diagram；
Fig. 3 is that one embodiment of the invention analyzes coordinate system and measurement coordinate system arranges graph of a relation.
Detailed description of the invention
As it is shown in figure 1, the method for the present invention comprises the following steps:
1st step, sets up pylon and analyzes coordinate system.
Choose bottommost horizontal corner steel in pylon visual range, as in figure 2 it is shown, arrange two end points of angle steel to be respectively A, B
Point.The initial point of pylon coordinate system arranges pylon foot (basic) planar central, and X-direction is that A point points to B point, and Y direction is perpendicular
The most upwards, Z-direction is determined by the right-hand rule of space vector.
2nd step, sets up total station survey coordinate system.
Arbitrarily setting up total powerstation in visual A, B point range, the origin of coordinates is total powerstation central point, and X-axis is that initial point points to A
(or B) some direction, place, and analyzes in coordinate system the angle of X-direction less than 90 degree, Y direction straight up, Z-direction by
The right-hand rule of space vector determines, total station survey coordinate system X-Z plane is parallel with the X-Z plane analyzing coordinate system, analyzes
The setting of coordinate and measurement coordinate is as shown in Figure 3.
3rd step, computation and measurement coordinate is tied to analyze Conversion Matrix of Coordinate.
The coordinate value measuring A, B in measuring coordinate system is respectively (XA, YA, ZA) and (XB, YB, ZB), computational analysis coordinate
System and the X-axis angle theta measuring coordinate system,Then rotational transformation matrix is
Calculate the coordinate value (xA, yA, zA) of A point in analyzing coordinate system, then translation transformation matrix is
4th step, power transmission tower is set a roof beam in place (post) deformation measurement analysis.
Choose power transmission tower to set a roof beam in place (post) upper more than 5 measuring points being evenly distributed, in measuring coordinate system, measure the three of each point
Dimensional coordinate values, is multiplied by coordinate value with rotational transformation matrix and adds translation transformation matrix, then obtain measuring point in analyzing coordinate system
Coordinate value, the line style of gained coordinate points is compared with the initial line style of power transmission and transformation pylon i.e. can get beam (post) deformation direction and
Value.
When by power transmission and transformation pylon being carried out deformation observation without prism photoelectricity total powerstation, due to observation station and object of observation
Between there is barrier, have impact on the observation of the horizontal corner steel of pylon foot.Present invention total powerstation is observed, in the present invention
Visual range refers to that total powerstation can observe the scope of pylon foot horizontal corner steel.
In order to more precisely obtain the deformation curve of pylon, the present invention chooses more than 5 measuring points, ensures to measure essence simultaneously
Degree and measurement efficiency.
Claims (3)
1. the method applied without the deformation of prism photoelectricity total station survey power transmission and transformation pylon, it is characterised in that the method is:
1) set up pylon and analyze coordinate system: choose bottommost horizontal corner steel in pylon visual range, if described bottommost horizontal angle
Two end points of steel are respectively A, B point, analyze the initial point of coordinate system with pylon foot place planar central for pylon, and pylon analysis is sat
Mark system X-direction is to point to B point from A point, and Y direction is straight up, and Z-direction is determined by the right-hand rule of space vector；
2) total station survey coordinate system is set up: in the range of visual above-mentioned A, B point, set up total powerstation, with described total powerstation center
Point is the origin of coordinates of total station survey coordinate system, to point to A point or direction, B point place for total station survey coordinate system from initial point
X-direction, and total station survey coordinate system X-axis and above-mentioned pylon analyze coordinate system X-axis or the angle of X-axis extended lineLess than 90
Degree, with direction straight up for total station survey coordinate system Y direction, total station survey coordinate system Z-direction is by space vector
The right-hand rule determine, and the X-Z plane making described total station survey coordinate system X-Z plane and above-mentioned pylon analyze coordinate system is put down
OK；
3) calculate total station survey coordinate be tied to pylon analyze Conversion Matrix of Coordinate: in total station survey coordinate system measure A,
The coordinate value of B is respectivelyWith, calculate pylon and analyze coordinate system and total station survey coordinate system
X-axis angle,, obtain rotational transformation matrix；The seat of A point is calculated in coordinate system analyzed by pylon
Scale value, obtain translation transformation matrix；
4) measure power transmission tower to set a roof beam in place or the deformation of power transmission tower trestle: choose power transmission tower and set a roof beam in place or more than 5 distributions on power transmission tower trestle
Uniform measuring point, measures the D coordinates value of each measuring point in total station survey coordinate system, the D coordinates value of each measuring point is taken advantage of
With rotational transformation matrix, it is added with translation transformation matrix the most respectively, then obtains each measuring point seat in coordinate system analyzed by pylon
Scale value, compares the line style of coordinate points corresponding for gained coordinate value with the initial line style of power transmission and transformation pylon and i.e. obtains power transmission tower and set a roof beam in place
Or power transmission tower trestle deformation direction and deformation value.
Application the most according to claim 1 is without the method for prism photoelectricity total station survey power transmission and transformation pylon deformation, its feature
Being, in described step 3), rotational transformation matrix is。
Application the most according to claim 1 is without the method for prism photoelectricity total station survey power transmission and transformation pylon deformation, its feature
Being, in described step 3), translation transformation matrix is。
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| 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 |
| CN106813587B (en) * | 2015-11-30 | 2019-09-10 | 中国石油化工股份有限公司 | A kind of External floating roof tank DEFORMATION MONITORING SYSTEM |
| 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 |
| CN109945795B (en) * | 2019-04-03 | 2021-08-31 | 山西省汾河二库管理局 | Device and method for testing performance of measuring robot |
| CN110826141B (en) * | 2019-11-29 | 2022-09-02 | 广西路桥工程集团有限公司 | Low-cost automatic test method for tower linear type and application test system thereof |
| CN112665535A (en) * | 2020-12-04 | 2021-04-16 | 中冶天工集团有限公司 | Method for measuring wall surface flatness |
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Effective date of registration: 20180712 Address after: 410004 398 new Shao Dong Road, Tianxin District, Changsha, Hunan Co-patentee after: Power Science Research Institute of Hunan Electric Power Co., Ltd. Patentee after: State Grid Hunan Electric Power Co., Ltd. Co-patentee after: State Grid Corporation of China Address before: 100033 West Chang'an Avenue, Xicheng District, Xicheng District, Beijing Co-patentee before: Electric Power Research Institute, State Grid Hunan Electric Power Company Patentee before: State Grid Corporation of China Co-patentee before: Hunan Xiangdian Electric Power Text & Research Co., Ltd. |
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