CN102495413A - Method for acquiring transmission line tower coordinate - Google Patents
Method for acquiring transmission line tower coordinate Download PDFInfo
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- CN102495413A CN102495413A CN2011103778887A CN201110377888A CN102495413A CN 102495413 A CN102495413 A CN 102495413A CN 2011103778887 A CN2011103778887 A CN 2011103778887A CN 201110377888 A CN201110377888 A CN 201110377888A CN 102495413 A CN102495413 A CN 102495413A
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Abstract
The invention discloses a method for acquiring a transmission line tower coordinate. In the method, based on a computer technology, a lead adjustment calculation technology and a GPS measurement technology, one transmission line is taken as one control measurement lead; information, such as an apparatus, a measuring method, a horizontal angle, a horizontal distance and the like, is obtained through data mining. A few field GPS measuring points are reasonably arranged. The GPS is used to acquire national coordinates of the field GPS measuring points. Computer software is controlled and measured to calculate the national coordinates of the whole towers. Precision assessment is performed and measurement precision can be guaranteed. Compared to the current general method for acquiring the national coordinates of the tower through the GPS measuring method, by using the method of the invention, cost is low; a working efficiency is high; labor intensity is low; personnel needed in the method is few; quality is reliable; it is convenient for popularization and application; economic benefits and social benefits are remarkable.
Description
Technical field
The invention belongs to field of computer technology, particularly a kind of method that obtains the electric power line pole tower coordinate through computing machine.
Background technology
Power grid GIS is the computer system of a relevant space with management by methods topomap, remote sensing images and transmission line of electricity, electric substation and generating plant of the theory with GIS and attribute data, is planning, survey and design, construction and the operation service of power transmission network.Data are the blood of generalized information system, and in the whole life of generalized information system, data account for 70% of whole investment.Electric network data is the core of power grid GIS, and the electrical network spatial data is the basis of attribute data location.
Transmission line of electricity is made up of a series of bars, tower and the lead that is connected between the shaft tower, and wherein the national coordinate of shaft tower is the sterically defined foundation of transmission line of electricity, is the basic data of carrying out space querying, spatial analysis.Transmission line of electricity has the advantages that quantity is many, space distribution is wide, so the collecting work amount of electric power line pole tower coordinate is huge.At present, adopt the open-air method of GPS RTK technology usually by the tower measurement.GPS RTK technology is the measuring method that can obtain the centimetre-sized bearing accuracy in the open air in real time; It has adopted carrier phase dynamic real-time difference method; Be the great milestone that GPS uses, for engineering setting out, topographic mapping, various control survey have brought very big facility.But this method expensive, and Measuring Time is longer.
The design of transmission line of electricity is mainly accomplished by power survey and design institutes at different levels, so has just accumulated the data of many existing circuits in the reference room of each power survey and design institute: for example measurement report, flat section location map, location outcome table, shaft tower detail list etc.The employed surveying instrument of tower spotting, method, time etc. have wherein mainly been introduced in the measurement report; The location outcome table mainly comprises information such as shaft tower number, mileage, elevation, the corner number of degrees, uses optical theodolite, stadimeter, total station survey, and mileage, span fetch bit are to rice, and the corner fetch bit is to dividing; Use GPS to measure in the recent period, mileage, span fetch bit are to cm, and the corner fetch bit is to second.
No matter be to adopt optical theodolite, stadimeter, total powerstation or adopt GPS to measure, because the influence of precision, human factor and the external condition of surveying instrument, measuring error is always inevitable.In order to improve the quality of achievement, handle the error problem that these exist in measuring well, the number of observed reading often will just will be carried out redundant observation more than the number of confirming that unknown quantity institute must observe.Redundant observation has been arranged, certainly will between observed result, produce contradiction, the purpose of measurement adjustment is tried to achieve the reliable results of observed quantity and the precision that achievement is measured in evaluation with regard to being to eliminate these contradictions.Control survey adjustment software is used for the control survey precision, in field of measurement, has obtained widespread use.
Summary of the invention
The technical issues that need to address of the present invention provide and a kind ofly can improve field work efficient and measuring accuracy, reduce the electric power line pole tower coordinate preparation method of Measuring Time and surveying work amount.
For solving the problems of the technologies described above, the technical scheme that the present invention adopted is.
The preparation method of electric power line pole tower coordinate, this method be based on computer technology, traverse adjustment computing technique and GPS measuring technique, and its characteristic may further comprise the steps being.
A. through consulting the transmission line of electricity archives material, gather the basic parameter of every transmission line of electricity, form the data text of this transmission line of electricity;
B. obtain the horizontal angle of shaft tower in the transmission line of electricity and the horizontal range between the adjacent shaft tower according to steps A;
C. according to steps A and B, according to the fetch bit of power grid GIS accuracy requirement and mileage, corner, be known point with two basic shaft towers of transmission line of electricity starting point and terminal point, arrange open-air GPS measurement point;
D. adopt GPS RTK technology that the open-air GPS measurement point that step C is provided with is carried out obtaining of national coordinate;
E. with the data input lead compensating computation software of step B and D acquisition, carry out every basic shaft tower Coordinate Calculation, the judgement of input rough error and the judgement of coordinate precision;
F. the shaft tower coordinate that step e is obtained imports Microsoft Excel, generates shaft tower coordinate warehouse-in data file.
Said step e may further comprise the steps:
A. the mis-tie of the mis-tie of computer azimuth angle and shaft tower coordinate judges whether to exist the input rough error, if there is the input rough error, rejects;
B. fixing known point is weighed according to the fetch bit of the measuring method of location, surveying instrument equipment, horizontal angle, horizontal range surely, carries out compensating computation, calculates the coordinate of every basic shaft tower, and judges whether the precision of every basic shaft tower coordinate meets the demands; As do not meet the demands, return step C.
Said every basic shaft tower Coordinate Calculation method is: through the horizontal angle of step B acquisition, calculate the position angle of shaft tower, calculated the coordinate of every basic shaft tower again by position angle and span respectively.
The basic parameter of data text described in the said steps A mainly comprises title, starting point, terminal point, surveying instrument equipment, shaft tower number, mileage, the corner of transmission line of electricity.
Also comprise the step of rule file being imported computer system in the said steps A, said rule file is the input rule of corner, and when the straight line pole corner number of degrees are zero, the left-hand rotation corner is a negative value, the right-hand rotation corner be on the occasion of.
Horizontal angle described in the said step B adopts computes:
L
1=?L
2+180°
Wherein: L
1: horizontal angle
L
2: deflection angle;
Said horizontal range adopts computes:
D=S?
n+1—S
?n
Wherein: S
N+1: n+1 shaft tower mileage
S
n: n shaft tower mileage.
Because the technical progress of having adopted technique scheme, the present invention to obtain is.
The present invention is through carrying out data mining to Electric Power Survey design and research institute archives material; Utilize existing EXCEL, SURVEYING CONTROL NETWORK adjustment software; Obtain layout principle and the experimental formula that open-air GPS measures through experiment, with the national coordinate of final acquisition electric power line pole tower.Adopt the present invention to carry out the national coordinate collection of electric power line pole tower; Can reduce the open-air GPS of use eyeball quantity 60%-80%; Not only work efficiency significantly improves, and effectively reduces the labour intensity of field process, and the duration is reduced by the influence of extraneous factors such as weather, traffic, vegetation.Compare with the conventional operation method, the duration shortens about 80%, and measuring accuracy improves greatly, for the power grid GIS create beneficial result that puts into operation early provides condition.
With the Hebei South electrical network is example, and 500kV circuit 2277km will be arranged the end of the year 2010,220kV circuit 8118km.The 500kV circuit is pressed the conservative calculating of 500m span (standard file is apart from 450m), and iron tower has 4554 bases approximately; The 220kV circuit is pressed the conservative calculating of 400m (standard file is apart from 350m) span, and iron tower has 20295 bases approximately, adds up to 24849 bases.If the collection expense of every basic iron tower is roughly equal to 100 yuan of Renminbi, Hebei South electrical network 220kV, 500kV circuit adopt the present invention to compare with classic method so, can practice thrift 156.549 ten thousand yuans of collection expenses.There will be transmission line of electricity 618837km the end of the year 2010 in State Grid Corporation of China; Calculate conservative estimation by the 500m span shaft tower 1237674 bases are arranged; The collection expense of every basic iron tower is by 100 yuans of conservative calculating; Adopt invention to compare with classic method, can practice thrift 7797.346 ten thousand yuans of collection expenses, remarkable in economical benefits improves.
Description of drawings
Fig. 1 is a process flow diagram of the present invention.
Embodiment
Below in conjunction with accompanying drawing and embodiment the present invention is explained further details.
The preparation method of electric power line pole tower coordinate, the process flow diagram of this method is as shown in Figure 1.This method is based on computer technology, traverse adjustment computing technique and GPS measuring technique; When specifically being applied in the electrical network; With Hebei South electrical network zone 220kV and above electric pressure transmission line of electricity is example; Relate to 283 transmission lines of electricity altogether, the acquisition methods of every electric power line pole tower coordinate all adopts method of the present invention.Be example with a transmission line of electricity below, explain that the present invention obtains the method for all shaft tower coordinates on this transmission line of electricity.
A. through consulting the transmission line of electricity archives material; Be used as a single-measurement lead to each bar circuit; Every grade of shaft tower is gathered the basic parameter of every transmission line of electricity as a Surveying Control Point, and basic parameter comprises information such as title, starting point, terminal point, geographic position, surveying instrument equipment, shaft tower number, mileage, the corner of transmission line of electricity; And the basic parameter of transmission line of electricity is input in the Microsoft Excel of computer system the data text that to form with a transmission line of electricity be unit.Form 283 shaft tower 11345 bases of data file altogether.
When in this step, importing corner information, the needs basis rule file of input computer system is in advance imported.Here said rule file is the input rule of corner: when the straight line pole corner number of degrees are zero, the left-hand rotation corner is a negative value, the right-hand rotation corner be on the occasion of.
B. according to the basic parameter in the steps A, obtain the horizontal angle of shaft tower in the transmission line of electricity and the horizontal range between the adjacent shaft tower.
The horizontal angle of shaft tower adopts computes:
L
1=?L
2+180°
Wherein: L
1: horizontal angle
L
2: deflection angle;
Horizontal range between the adjacent shaft tower adopts computes:
D?=S?
n+1—S
?n
Wherein: S
N+1: n+1 shaft tower mileage
S
n: n shaft tower mileage.
C. obtaining parameter according to steps A and B, according to the fetch bit of power grid GIS accuracy requirement and mileage, corner, is known point with two basic shaft towers of transmission line of electricity starting point and terminal point, arranges open-air GPS measurement point.
The starting point of transmission line of electricity and terminal point turnover power plant or electric substation in the electrical network, circuit is intensive, and outlet planning needs precision higher, and the center section of transmission line of electricity is then relatively low.Measure lead to each bar transmission line of electricity as one in the present embodiment; According to the measuring error propagation law; Meet the theory of lead error the weakest point in the centre, therefore, two basic shaft towers the starting at a little of transmission line of electricity starting point, terminal point as the GPS measurement point; According to the accuracy requirement of power grid GIS, layout then in the increase of transmission line of electricity interlude.
The cardinal rule of layouting is following.
A. transmission line of electricity circuit starting point, terminal point respectively are provided with two basic shaft towers and layout.
B. for adopting GPS RTK method to measure, and mileage, corner fetch bit are respectively centimetre and second situation, line length can not increase smaller or equal to the centre of 50km layouts, and increases a point as check point in the middle of the above consideration of 50km, guarantees data reliability.
C. for no matter being to adopt optical theodolite, total station survey, still adopt GPS RTK method to measure, if the situation that mileage, corner fetch bit are respectively rice and divide, by following formula estimation error,
d=0.5+1.2×S/10000
D wherein: planimetric position error
S: line length, unit rice.
Then, layout according to increasing in the middle of the accuracy requirement of power grid GIS.Adopt this principle to have directive significance, can avoid a large amount of duplication of labour, guarantee the one-shot measurement success ratio for reasonable Arrangement GPS measurement point among the step C.
According to arranging 1731 of field survey points in the mentioned above principle present embodiment altogether.
D. adopt GPS RTK technology that the open-air GPS measurement point that step C is provided with is carried out obtaining of national coordinate.
E. with the data input lead compensating computation software of step B and D acquisition, carry out every basic shaft tower Coordinate Calculation, the judgement of input rough error and the judgement of coordinate precision.Detailed process does.
A. the mis-tie of the mis-tie of computer azimuth angle and shaft tower coordinate judges whether to exist the input rough error, if there is the input rough error, rejects; Mis-tie is meant the total error between transmission line of electricity terminal point and the starting point.
Fixedly known point is weighed according to the fetch bit of the measuring method of locating, surveying instrument equipment, horizontal angle, horizontal range surely, carries out compensating computation, calculates the coordinate of every basic shaft tower.
Principle is weighed in fetch bit surely: when corner fetch bit branch, when tiring out apart from fetch bit rice, error was respectively 30 seconds and 0.5 meter in priori mean square error of angle observation and the range finding; Corner fetch bit second, tired during apart from fetch bit centimetre, error was respectively 5 seconds and 0.05 meter in priori mean square error of angle observation and the range finding.Tired distance is every basic shaft tower to the distance between starting point.
Every basic shaft tower Coordinate Calculation method is: through the horizontal angle of step B acquisition, calculate the position angle of shaft tower, calculated the coordinate of every basic shaft tower again by the horizontal range between position angle and adjacent shaft tower respectively.
Azimuthal computing formula is:
L
3=L
0+180
o?+L
1
L wherein
0: initial known formula parallactic angle;
L
1: horizontal angle;
L
3: the position angle;
Shaft tower Coordinate Calculation formula is:
X=X
0+S×cos(?L
3)
Y=?Y
0+S×sin(?L
3)
X wherein
0: initial known ordinate
Y
0: initial known horizontal ordinate
S: the horizontal range between adjacent shaft tower
L
3: the position angle
X: shaft tower ordinate
Y: shaft tower horizontal ordinate
[0042]Coordinate Calculation judges whether the precision of every basic shaft tower coordinate meets the demands after accomplishing.As do not meet the demands, return step C and arrange the GPS measurement point again, carry out field survey.
F. the shaft tower coordinate that step e is obtained imports Microsoft Excel, generates shaft tower coordinate warehouse-in data file, so that the power grid GIS platform directly reads in.
Claims (6)
1. the preparation method of electric power line pole tower coordinate, this method be based on computer technology, traverse adjustment computing technique and GPS measuring technique, and its characteristic may further comprise the steps being:
A. through consulting the transmission line of electricity archives material, gather the basic parameter of every transmission line of electricity, form the data text of this transmission line of electricity;
B. obtain the horizontal angle of shaft tower in the transmission line of electricity and the horizontal range between the adjacent shaft tower according to steps A;
C. according to steps A and B, according to the fetch bit of power grid GIS accuracy requirement and mileage, corner, be known point with two basic shaft towers of transmission line of electricity starting point and terminal point, arrange open-air GPS measurement point;
D. adopt GPS RTK technology that the open-air GPS measurement point that step C is provided with is carried out obtaining of national coordinate;
E. with the data input lead compensating computation software of step B and D acquisition, carry out every basic shaft tower Coordinate Calculation, the judgement of input rough error and the judgement of coordinate precision;
F. the shaft tower coordinate that step e is obtained imports Microsoft Excel, generates shaft tower coordinate warehouse-in data file.
2. the preparation method of electric power line pole tower coordinate according to claim 1 is characterized in that: said step e may further comprise the steps:
A. the mis-tie of the mis-tie of computer azimuth angle and shaft tower coordinate judges whether to exist the input rough error, if there is the input rough error, rejects;
B. fixing known point is weighed according to the fetch bit of the measuring method of location, surveying instrument equipment, horizontal angle, horizontal range surely, carries out compensating computation, calculates the coordinate of every basic shaft tower, and judges whether the precision of every basic shaft tower coordinate meets the demands; As do not meet the demands, return step C.
3. the preparation method of electric power line pole tower coordinate according to claim 1 and 2; It is characterized in that: said every basic shaft tower Coordinate Calculation method does; Through the horizontal angle of step B acquisition, calculate the position angle of shaft tower, calculate the coordinate of every basic shaft tower more respectively by position angle and span.
4. the preparation method of electric power line pole tower coordinate according to claim 1 is characterized in that: the basic parameter of data text described in the steps A comprises the title of transmission line of electricity, starting point, terminal point, surveying instrument equipment, shaft tower number, mileage, corner.
5. according to the preparation method of claim 1 or 4 described electric power line pole tower coordinates; It is characterized in that: comprise the step of rule file being imported computer system in the said steps A; Said rule file is the input rule of corner; When the straight line pole corner number of degrees are zero, the left-hand rotation corner is a negative value, the right-hand rotation corner be on the occasion of.
6. the preparation method of electric power line pole tower coordinate according to claim 1 is characterized in that: the horizontal angle described in the step B adopts computes:
L
1=?L
2+180°
Wherein: L
1: horizontal angle
L
2: deflection angle;
Said horizontal range adopts computes:
D=S?
n+1—S
?n
Wherein: S
N+1: n+1 shaft tower mileage
S
n: n shaft tower mileage.
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102901451A (en) * | 2011-07-26 | 2013-01-30 | 上海市电力公司 | Method and device for accurately quickly measuring power transmission and distribution project leads |
| CN104200046A (en) * | 2014-09-18 | 2014-12-10 | 国家电网公司 | GIS (geographic information system)-based three-dimensional power transmission line corridor design method |
| CN104850596A (en) * | 2015-04-28 | 2015-08-19 | 国家电网公司 | Distribution network data processing method based on mobile GIS (Geographic Information System) and RTK (Real Time Kinematic) positioning |
| CN105738933A (en) * | 2016-02-16 | 2016-07-06 | 国网山东省电力公司经济技术研究院 | Construction stake position repetition measurement method and device |
| CN105804472A (en) * | 2014-12-31 | 2016-07-27 | 浙江大华系统工程有限公司 | Positioning method and device for positions of pole towers |
| CN106465522A (en) * | 2015-06-05 | 2017-02-22 | 松下知识产权经营株式会社 | Content display system |
| CN108805336A (en) * | 2018-05-18 | 2018-11-13 | 云南电网有限责任公司电力科学研究院 | It is a kind of to choose the method and device for sharing shaft tower based on power grid GIS |
| CN110207638A (en) * | 2019-05-20 | 2019-09-06 | 中国核工业华兴建设有限公司 | A kind of on-fixed survey station purlin track road position inspecting method |
| CN111238627A (en) * | 2020-01-20 | 2020-06-05 | 南京法艾博光电科技有限公司 | Geographic information calibration method for strain tower in overhead transmission line |
| CN112163055A (en) * | 2020-09-09 | 2021-01-01 | 四川长园工程勘察设计有限公司 | Tower labeling method |
| CN112698375A (en) * | 2020-12-14 | 2021-04-23 | 国网辽宁省电力有限公司鞍山供电公司 | Multi-domain double-positioning-error-eliminated line drawing method |
| CN113884072A (en) * | 2021-07-30 | 2022-01-04 | 山东电力工程咨询院有限公司 | Automatic lofting method and system for line and tower footing |
-
2011
- 2011-11-24 CN CN201110377888.7A patent/CN102495413B/en active Active
Non-Patent Citations (3)
| Title |
|---|
| 张焕杰 等: "GPS在220kV输电线路勘测中的应用", 《电力勘测》 * |
| 张焕杰 等: "河北省南部输电网GIS研究", 《电力勘测设计》 * |
| 李仕东 等: "以坐标为引数的导线测量平差方法", 《山东交通科技》 * |
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| CN102901451A (en) * | 2011-07-26 | 2013-01-30 | 上海市电力公司 | Method and device for accurately quickly measuring power transmission and distribution project leads |
| CN102901451B (en) * | 2011-07-26 | 2015-10-21 | 上海市电力公司 | A kind of accurately quick method for the measuring and calculating of transmission and transformation engineering wire and device |
| CN104200046A (en) * | 2014-09-18 | 2014-12-10 | 国家电网公司 | GIS (geographic information system)-based three-dimensional power transmission line corridor design method |
| CN104200046B (en) * | 2014-09-18 | 2018-08-14 | 国家电网公司 | A kind of three-dimensional power transmission line corridor band design method based on GIS |
| CN105804472A (en) * | 2014-12-31 | 2016-07-27 | 浙江大华系统工程有限公司 | Positioning method and device for positions of pole towers |
| CN105804472B (en) * | 2014-12-31 | 2018-01-12 | 浙江大华系统工程有限公司 | A kind of localization method and device of shaft tower position |
| CN104850596A (en) * | 2015-04-28 | 2015-08-19 | 国家电网公司 | Distribution network data processing method based on mobile GIS (Geographic Information System) and RTK (Real Time Kinematic) positioning |
| CN104850596B (en) * | 2015-04-28 | 2018-01-02 | 国家电网公司 | A kind of distribution data processing method based on mobile GIS and RTK positioning |
| CN106465522A (en) * | 2015-06-05 | 2017-02-22 | 松下知识产权经营株式会社 | Content display system |
| CN105738933A (en) * | 2016-02-16 | 2016-07-06 | 国网山东省电力公司经济技术研究院 | Construction stake position repetition measurement method and device |
| CN108805336A (en) * | 2018-05-18 | 2018-11-13 | 云南电网有限责任公司电力科学研究院 | It is a kind of to choose the method and device for sharing shaft tower based on power grid GIS |
| CN110207638A (en) * | 2019-05-20 | 2019-09-06 | 中国核工业华兴建设有限公司 | A kind of on-fixed survey station purlin track road position inspecting method |
| CN111238627A (en) * | 2020-01-20 | 2020-06-05 | 南京法艾博光电科技有限公司 | Geographic information calibration method for strain tower in overhead transmission line |
| CN111238627B (en) * | 2020-01-20 | 2022-03-15 | 南京法艾博光电科技有限公司 | Geographic information calibration method for strain tower in overhead transmission line |
| CN112163055A (en) * | 2020-09-09 | 2021-01-01 | 四川长园工程勘察设计有限公司 | Tower labeling method |
| CN112163055B (en) * | 2020-09-09 | 2023-11-21 | 成都深瑞同华科技有限公司 | Tower labeling method |
| CN112698375A (en) * | 2020-12-14 | 2021-04-23 | 国网辽宁省电力有限公司鞍山供电公司 | Multi-domain double-positioning-error-eliminated line drawing method |
| CN112698375B (en) * | 2020-12-14 | 2023-10-20 | 国网辽宁省电力有限公司鞍山供电公司 | Circuit drawing method for eliminating multi-domain double positioning errors |
| CN113884072A (en) * | 2021-07-30 | 2022-01-04 | 山东电力工程咨询院有限公司 | Automatic lofting method and system for line and tower footing |
| CN113884072B (en) * | 2021-07-30 | 2023-09-01 | 山东电力工程咨询院有限公司 | Automatic lofting method and system for line and tower foundation |
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