CN114353766A - Method and system for observing sag of ground wire by using power transmission line gear side method - Google Patents
Method and system for observing sag of ground wire by using power transmission line gear side method Download PDFInfo
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- 238000005259 measurement Methods 0.000 claims abstract description 25
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- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 claims description 8
- 238000013523 data management Methods 0.000 claims description 6
- 238000007726 management method Methods 0.000 claims description 3
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- 238000013500 data storage Methods 0.000 claims 1
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Abstract
The invention discloses a method and a system for observing the sag of a ground wire by a transmission line gear side method, which comprises the following steps: erecting a total station at any point with a wide view field on the side of an observation gear of the overhead transmission line; establishing a space rectangular coordinate system by using a total station; respectively measuring and recording coordinates of wire clamps at two ends of the ground wire and coordinates of any point of the ground wire; calculating a parabolic equation passing through three points simultaneously according to the recorded three-point coordinates, wherein the vertical distance from the middle point of the connecting line of the wire clamps at the two ends of the ground wire to the parabola is the sag f of the ground wire0. The invention can reduce the observation time and the risks brought by the high-altitude operation, directly calculates the output result through software, has simple and convenient operation, good detection adaptability and high speed, reduces the workload brought by the calculation of observers, improves the efficiency of data processing and the accuracy of calculation, and greatly improves the construction and actual measurement in the stringing construction process of the power transmission lineAnd checking the working quality such as quantity and completion acceptance.
Description
Technical Field
The invention relates to the technical field of power transmission lines, in particular to a method and a system for observing the sag of a ground wire by a power transmission line gear side method.
Background
In the current transmission line construction and acceptance process, the methods adopted for observing sag comprise an angle method, a sag plate observation method, a midpoint height method and the like, and in the above observation methods, the calculation and operation are complex and are easily influenced and limited by terrain, so that the workload of workers is greatly increased, and the working efficiency is reduced. In order to solve the problems, no simple and convenient effective method exists at present.
Disclosure of Invention
Aiming at the technical problems in the related art, the invention provides a method and a system for observing the sag of a ground wire by a transmission line gear side method, which can overcome the defects in the prior art.
In order to achieve the technical purpose, the technical scheme of the invention is realized as follows:
a method for observing the arc sag of a conductive ground wire by a transmission line gear side method comprises the following steps:
s1 erecting a total station at any point with a wide view on the side of an observation gear of the overhead transmission line;
s2, establishing a space rectangular coordinate system by using a total station;
s3, respectively measuring and recording coordinates a (x) of wire clamps at two ends of the ground wire1，y1，z1) And b (x)2，y2，z2) And the coordinate c (x) of any point of the ground wire3，y3，z3）；
S4, calculating a parabolic equation passing through the three points a, b and c simultaneously through the three-point coordinates a, b and c recorded in S3, wherein the vertical distance from the midpoint of the connecting line of the two points a and b to the parabola is the sag f of the ground wire0。
A system for observing the sag of a ground wire by adopting a transmission line gear side method comprises the following steps:
the measurement data management module is used for storing, inquiring, exporting and managing the measurement data;
the total station connection management module is used for communicating with the total station, searching, selecting, matching and disconnecting the total station;
the sag calculation module is used for starting a calculation process for manually input or automatically read total station measurement data and calculating a sag value f0And outputting the result;
and the settlement result concise schematic module is used for generating concise schematic curves of the measurement data points and the settlement results, and is convenient for a user to check the data.
Further, the data store is used for storage, tagging and remarking of measurement data.
Further, the data query is used for querying the test data according to date or label.
Further, the data export is used to export the data to the PC for further processing.
Further, the data management is used to delete useless measurement data, change labels and remarks.
Further, the calculation process of the sag calculation module is as follows: the calculation flow of the sag calculation module is as follows: calculating a parabolic equation passing through the a, b and c according to the coordinates of the a and b clamps at the two ends of the ground lead wire and the c of any point of the ground lead wire, and further obtaining the sag f of the ground lead wire0。
The invention has the beneficial effects that: the invention can reduce the observation time and the risks brought by high-altitude operation, directly calculates the output result through software, has simple and convenient operation, good detection adaptability and high speed, reduces the workload brought by the calculation of observers, improves the efficiency of data processing and the accuracy of calculation, and greatly improves the inspection working quality of construction, actual measurement, completion acceptance and the like in the stringing construction process of the power transmission line.
Detailed Description
The technical solutions in the embodiments of the present invention are clearly and completely described, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments that can be derived by one of ordinary skill in the art from the embodiments given herein are intended to be within the scope of the present invention.
The method for observing the arc sag of the ground wire by the transmission line gear side method comprises the following steps:
a method for observing the arc sag of a conductive ground wire by a transmission line gear side method comprises the following steps:
s1 erecting a total station at any point with a wide view on the side of an observation gear of the overhead transmission line;
s2, establishing a space rectangular coordinate system by using a total station;
s3 measuring and recording the ground wire and the ground wire respectivelyCoordinate a (x) of end clamp1，y1，z1) And b (x)2，y2，z2) And the coordinate c (x) of any point of the ground wire3，y3，z3）；
S4, calculating a parabolic equation passing through the three points a, b and c simultaneously through the three-point coordinates a, b and c recorded in S3, wherein the vertical distance from the midpoint of the connecting line of the two points a and b to the parabola is the sag f of the ground wire0。
In this embodiment, data such as a linear distance and a height difference angle of the target point location can be obtained through the simulated spatial calculation of the total station. The length and size of any target can be measured within a certain range, and a space rectangular coordinate system can be established through the total station to obtain rectangular coordinate data of any point in space.
In this embodiment, the step-side method is used to observe the sag of the ground wire by using the measurement and relative coordinate building functions of the total station, the ground wire is influenced by gravity, the points a, b and c are on the same plane, and the plane is vertical to the ground.
A system for observing the sag of a ground wire by adopting a transmission line gear side method comprises the following steps:
the measurement data management module is used for storing, inquiring, exporting and managing the measurement data;
the total station connection management module is used for communicating with the total station, searching, selecting, matching and disconnecting the total station;
the sag calculation module is used for starting a calculation process for manually input or automatically read total station measurement data and calculating a sag value f0And outputting the result;
and the settlement result concise schematic module is used for generating concise schematic curves of the measurement data points and the settlement results, and is convenient for a user to check the data.
In this embodiment, the data store is used for storing, tagging, and remarking measurement data.
In this embodiment, the data query is used to query the test data according to a date or a label.
In this embodiment, the data export is used to export data to a PC for further processing.
In this embodiment, the data management is used to delete useless measurement data and change tags and remarks.
In this embodiment, the calculation process of the sag calculation module is as follows: calculating a parabolic equation passing through the a, b and c according to the coordinates of the a and b clamps at the two ends of the ground lead wire and the c of any point of the ground lead wire, and further obtaining the sag f of the ground lead wire0。
In the embodiment, the system is communicated with the total station through wireless connection, the coordinate value measured by the total station is read, complex manual reading and input work is omitted, field measurement work is greatly facilitated, and the measurement efficiency is improved.
In other embodiments, the software may manually input the coordinate values, facilitating the calculation needs for other source data without a total station being connected.
According to the embodiment, on the basis of observing the sag of the ground wire, the ground wire can be developed subsequently, various module functions are researched and developed in a series mode, more field data detection functions such as height difference of a power transmission line engineering foundation, inclination of inserted angle steel, inclination and pre-deflection of tower materials, inclination of insulators, space between spacers and the like are gradually realized, and a new intelligent automatic detection mode for the power transmission line field is further created.
In order to facilitate understanding of the above-described technical aspects of the present invention, the above-described technical aspects of the present invention will be described in detail below in terms of specific usage.
When the method and the system are used specifically, according to the method and the system for observing the sag of the ground lead wire by the transmission line gear side method, the total station is erected, the total station is arranged to establish a space rectangular coordinate system, and the coordinates a (x) of the wire clamps at the two ends of the ground lead wire at the two ends of the observation gear are measured respectively1，y1，z1) And b (x)2，y2，z2) Then, a point c on the ground wire is selected arbitrarily, and the coordinate (x) is measured3，y3，z3) The sag value f can be calculated by importing the measurement data information into software0。
In conclusion, by means of the technical scheme, the risk caused by observation time and overhead operation can be reduced, the output result is directly calculated through software, the operation is simple and convenient, the detection adaptability is good, the speed is high, the workload caused by calculation of observers is reduced, the data processing efficiency and the calculation accuracy are improved, and the inspection working quality of construction, actual measurement, completion acceptance and the like in the stringing construction process of the power transmission line is greatly improved.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (7)
1. A method for observing the sag of a ground wire by a transmission line gear side method is characterized by comprising the following steps:
s1 erecting a total station at any point with a wide view on the side of an observation gear of the overhead transmission line;
s2, establishing a space rectangular coordinate system by using a total station;
s3, respectively measuring and recording coordinates a (x) of wire clamps at two ends of the ground wire1，y1，z1) And b (x)2，y2，z2) And the coordinate c (x) of any point of the ground wire3，y3，z3）；
S4, calculating a parabolic equation passing through the three points a, b and c simultaneously through the three-point coordinates a, b and c recorded in S3, wherein the vertical distance from the midpoint of the connecting line of the two points a and b to the parabola is the sag f of the ground wire0。
2. A system for observing a ground wire sag using the method of claim 1, comprising:
the measurement data management module is used for storing, inquiring, exporting and managing the measurement data;
the total station connection management module is used for communicating with the total station, searching, selecting, matching and disconnecting the total station;
the sag calculation module is used for starting a calculation process for manually input or automatically read total station measurement data and calculating a sag value f0And outputting the result;
and the settlement result concise schematic module is used for generating concise schematic curves of the measurement data points and the settlement results, and is convenient for a user to check the data.
3. The system for observing the sag of the ground wire by the transmission line gear side method according to claim 2, wherein the data storage is used for storing, labeling and remarking measurement data.
4. The system for observing the sag of the ground wire according to the transmission line gear-side method as claimed in claim 2, wherein the data query is used for querying the test data according to a date or a label.
5. The system for observing the sag of the ground wire according to the transmission line gear-side method, as recited in claim 2, wherein the data derivation is used for deriving data to a PC for further processing.
6. The system for observing the sag of the ground wire by the transmission line gear side method according to claim 2, wherein the data management is used for deleting useless measurement data and changing labels and remarks.
7. The system for observing the sag method of the ground wire and the conducting wire by the transmission line gear side method according to claim 2, wherein the calculation process of the sag calculation module is as follows: calculating a parabolic equation passing through the a, b and c according to the coordinates of the a and b clamps at the two ends of the ground lead wire and the c of any point of the ground lead wire, and further obtaining the sag f of the ground lead wire0。
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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 |
| CN104700215A (en) * | 2015-03-13 | 2015-06-10 | 梁来先 | Comprehensive calculating system and method for stringing construction of electric transmission line |
| CN107239658A (en) * | 2017-05-31 | 2017-10-10 | 国网福建省电力有限公司 | A kind of method and system for aiding in power transmission line sag measurement |
| CN110906872A (en) * | 2019-11-29 | 2020-03-24 | 河南送变电建设有限公司 | Method for observing and adjusting lead through high-efficiency gear side sag |
| US20210172729A1 (en) * | 2017-12-18 | 2021-06-10 | The Curators Of The University Of Missouri | Real-time overhead power line sag monitoring |
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2021
- 2021-12-20 CN CN202111559276.XA patent/CN114353766A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| JP2002090144A (en) * | 2000-09-21 | 2002-03-27 | Jekku:Kk | Secular change monitoring system using automatic tracking total station and storage medium |
| 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 |
| CN104700215A (en) * | 2015-03-13 | 2015-06-10 | 梁来先 | Comprehensive calculating system and method for stringing construction of electric transmission line |
| CN107239658A (en) * | 2017-05-31 | 2017-10-10 | 国网福建省电力有限公司 | A kind of method and system for aiding in power transmission line sag measurement |
| US20210172729A1 (en) * | 2017-12-18 | 2021-06-10 | The Curators Of The University Of Missouri | Real-time overhead power line sag monitoring |
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Non-Patent Citations (1)
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| 桂菲菲;王振刚;庞百胜;张恩德;华琦;高会娟;王艳;: "基于LabVIEW的架空输电线最大弧垂计算方法", 电力建设, no. 07 * |
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