CN110162868B - Power line optimization line selection method based on inclined three-dimensional model - Google Patents
Power line optimization line selection method based on inclined three-dimensional model Download PDFInfo
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- CN110162868B CN110162868B CN201910406690.3A CN201910406690A CN110162868B CN 110162868 B CN110162868 B CN 110162868B CN 201910406690 A CN201910406690 A CN 201910406690A CN 110162868 B CN110162868 B CN 110162868B
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- 238000010187 selection method Methods 0.000 title claims abstract description 8
- 238000013461 design Methods 0.000 claims abstract description 9
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F30/00—Computer-aided design [CAD]
- G06F30/10—Geometric CAD
- G06F30/18—Network design, e.g. design based on topological or interconnect aspects of utility systems, piping, heating ventilation air conditioning [HVAC] or cabling
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S10/00—Systems supporting electrical power generation, transmission or distribution
- Y04S10/50—Systems or methods supporting the power network operation or management, involving a certain degree of interaction with the load-side end user applications
Abstract
A power line optimization line selection method based on an inclined three-dimensional model comprises the steps of inclined photography aerial survey, ground phase control point measurement, inclined three-dimensional model establishment, software system establishment, naked eye 3D surveying and mapping of ground features, line path design, flat section graph output and the like. By using the method and the device, the survey cost of the power line can be reduced, and the engineering design quality is improved.
Description
Technical Field
The invention belongs to the field of power line selection design, and particularly relates to a power line optimization line selection method based on an inclined three-dimensional model.
Background
At present, as urban line channels are increasingly tense, obstacles are complex, urban planning is changeable, and the difficulty of line selection design of power lines is very high, for example: the common aerial survey has a sight blind area in a high-rise building group, and the coverage is not wide enough; stereoscopic observation requires auxiliary equipment such as stereoscopic glasses and the like, and is inconvenient for power line design; due to the change of city planning, the change of the line has to be carried out.
Compared with an orthoimage, the inclined three-dimensional model has the characteristics of fineness, measurability, sense of reality, high precision, objectification, quick updating, customization and the like, and the inclined three-dimensional model enables a power line designer to observe ground objects from multiple angles, reflects the actual conditions of the ground objects more truly, and greatly makes up the defects based on the application of the orthoimage. And the wide application of current unmanned aerial vehicle, it is comparatively convenient to acquire the three-dimensional model of slope.
The oblique photogrammetry technology is used for obtaining ground multi-view images to develop live-action three-dimensional modeling, which is a newly developed urban three-dimensional modeling technology rapidly developed in recent years.
However, in the aspect of power line survey, the application of the inclined three-dimensional model is still limited, and the following problems mainly exist: 1) Corresponding software is lacked, the circuit design is inconvenient, and the space measurement function is single; 2) The ground feature acquisition data are not designed aiming at electric power survey, and can not be butted with the existing mainstream power transmission line design software, namely the Donheng power transmission line design software; 3) The urban high-rise buildings stand in forest, the general aerial survey is difficult to cover comprehensively, and sight blind areas exist.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: the method for optimizing the line selection of the power line based on the inclined three-dimensional model can reduce the survey cost, improve the economic benefit and improve the engineering design quality.
The technical scheme adopted by the invention for solving the technical problem is as follows: a power line optimization line selection method based on an inclined three-dimensional model comprises the steps of firstly, inclined photography aerial survey; step two, measuring ground phase control points; step three, the inclined three-dimensional model building step further comprises the following steps:
step four, establishing a software system based on an OSGEarth + Visual C #2010+ Autcad2008+ Cass9.1 platform, and reading and displaying the inclined three-dimensional model information in the software system;
step five, naked eye 3D mapping of ground features: collecting ground feature information in a three-dimensional window of the software system, wherein the two-dimensional window of the software system displays the ground feature information in a southern CASS format;
designing a line path, namely performing three-dimensional line selection on a three-dimensional window of the software system; opening a corresponding orthoimage in a two-dimensional window of the software system in a matched manner, wherein the three-dimensional window and the two-dimensional window display a line path in a linkage manner;
step seven, outputting a plane section diagram: and outputting the plane section diagram in the AutoCAD format and the track Heng power transmission line format, and outputting the coordinates of the corner points.
And step four, acquiring the section elevation point information of the inclined three-dimensional model through the software system, acquiring ground elevation information and outputting the section elevation information.
And further, step six, designing the line path, wherein the software system is linked to open the AutoCAD, the line path is adjusted in the three-dimensional window, and the line path information is displayed in the two-dimensional window of the AutoCAD in real time.
Further, the method also comprises the following steps: and changing the line path, returning to the sixth step, re-inputting the coordinates of the corner points, and re-outputting the plane section diagram.
Feasibility of power line selection and power line plane section graph making based on the inclined three-dimensional model: (1) The existing unmanned aerial vehicle oblique photogrammetry technology can manufacture a true three-dimensional live-action model with good timeliness, high precision and rich information, and the model precision can meet the requirements of refined interpretation and indoor measurement; (2) The device is provided with a data interface for reading software in an inclined three-dimensional data format and outputting a section.
The beneficial effects of the invention are: the real world is restored, and different from the traditional manual three-dimensional model and the live-action three-dimensional model, when oblique photography is carried out, the unmanned aerial vehicle carries the oblique photography holder to detour at low altitude, and data information such as buildings, vegetation and the like on the ground can be recorded clearly; the surveying and mapping cost is reduced, the economic benefit is improved, in the traditional three-dimensional model building technology, once data errors occur, the whole survey and drawing can be wasted, and the defect is well avoided by multi-angle information measurement of the oblique photography technology of the unmanned aerial vehicle; the removal area of the buildings in the line channel can be accurately measured, fine interpretation and indoor measurement are carried out on a true three-dimensional model, and the number of floors and the actual area of the buildings in the crowded section of the power transmission line are rapidly counted, so that the house removal amount required by line engineering construction is effectively estimated, the engineering compensation cost is accurate and reasonable, and the construction civil difficulty is reduced; the vegetation attribute and the coverage range of the forest area can be accurately determined, the forest dense area is effectively avoided through the route path planning design, the length of a route in the forest area, particularly the fast-growing forest area, is reduced, the height of a designed iron tower and the cutting amount of the forest are reduced, the seedling compensation cost is effectively controlled, and the ecological environment is protected; the method has the advantages that the crossing and crossing height can be rapidly measured, the coordinates, the distance and the height of a crossed object can be accurately measured on a true three-dimensional model for important crossing along the lines of railways, expressways, established power transmission lines and the like, the crossing position of a line path can be reasonably planned, the crossing tower and paying-off construction can be favorably realized, and the engineering investment cost can be effectively controlled.
Drawings
FIG. 1 is a flow chart of a method for optimizing line selection based on a tilted three-dimensional model power line.
Detailed Description
The present invention will be described in detail below with reference to the accompanying drawings and examples.
As shown in fig. 1, this embodiment specifically includes the following steps: step one, oblique photography aerial survey 1 is carried out: synchronously acquiring images from five different visual angles, namely a vertical visual angle, four oblique visual angles and the like by using a rotor wing unmanned aerial vehicle or a fixed wing unmanned aerial vehicle, and acquiring rich top surface and side-looking high-resolution texture information of a building; step two, performing ground phase control point measurement 2: coordinates of apparent object points on the oblique image are measured in a joint mode within a specified range of the oblique image, point positions are accurately punctured on the oblique image in the field, and the oblique image is processed through aerial triangulation data; step three, establishing an inclined three-dimensional model 3: importing a navigation sheet, pricking points, carrying out aerial triangulation processing, establishing an inclined three-dimensional model, and finally outputting a model file in an STL file format; step four, establishing a software system 4: establishing a software system based on an OSGEarth + Visual C #2010+ Autcad2008+ Cass9.1 platform, reading inclined three-dimensional model information in a display STL format in the software system, and simultaneously, directly measuring data including height, length, area, angle, gradient and the like based on the three-dimensional model to perform power line optimization line selection; fifthly, naked eye 3D mapping of the ground object 5: naked eye 3D mapping of the ground object is carried out on the three-dimensional window of the software system, and the ground object is displayed on the two-dimensional window of the software system according to the southern CASS format; sixthly, designing a line path 6; selecting a line in a three-dimensional window of a software system in a three-dimensional way, wherein a two-dimensional window of the software system is matched with and opened with a corresponding orthoimage and a two-dimensional line selection, and the two windows are linked to display a line path; in order to facilitate and accurately select the line, the AutoCAD is opened in a linkage manner, the line path is adjusted in a three-dimensional window of the AutoCAD, the line path displayed in a two-dimensional window of the AutoCAD is changed in real time, and meanwhile, other planning and designing maps can be sleeved in the two-dimensional window of the AutoCAD; step seven, outputting a plane section diagram: outputting an AutoCAD format and a Doicheng power transmission line format plane section diagram, and outputting a corner point coordinate; and if the line path needs to be changed, returning to the step 6, re-inputting the coordinates of the corner points, and re-outputting the plane section diagram.
Those not described in detail in the specification are well within the skill of the art.
Claims (4)
1. A power line optimization line selection method based on an inclined three-dimensional model is characterized by comprising the steps of firstly, inclined photography aerial survey; step two, measuring ground phase control points; step three, establishing an inclined three-dimensional model, importing a navigation sheet, pricking points, carrying out aerial triangulation processing, establishing the inclined three-dimensional model, and finally outputting a model file in an STL file format;
step four, establishing a software system based on an OSGEarth + Visual C #2010+ Autcad2008+ Cass9.1 platform, reading and displaying inclined three-dimensional model information in an STL format in the software system, and simultaneously, directly measuring data including height, length, area, angle and gradient based on the three-dimensional model to perform power line optimization line selection;
step five, naked eye 3D mapping of ground features: collecting ground feature information in a three-dimensional window of the software system, wherein the two-dimensional window of the software system displays the ground feature information in a southern CASS format;
designing a line path, namely performing three-dimensional line selection on a three-dimensional window of the software system; opening a corresponding orthoimage in a two-dimensional window of the software system in a matched manner, wherein the three-dimensional window and the two-dimensional window display a line path in a linkage manner;
step seven, outputting a plane section diagram: and outputting the plane section diagram in the AutoCAD format and the track Heng power transmission line format, and outputting the coordinates of the corner points.
2. The optimized power line routing method based on the inclined three-dimensional model according to claim 1, wherein in the fourth step, the software system is established, and the method further comprises the steps of acquiring section elevation point information of the inclined three-dimensional model through the software system, acquiring ground elevation information and outputting section elevation information.
3. The optimized power line selection method based on the inclined three-dimensional model according to claim 1 or 2, wherein in the sixth step, the design of the line path further comprises the step of opening AutoCAD by the software system in a linkage manner, the line path is adjusted in the three-dimensional window, and the line path information is displayed in the two-dimensional window of the AutoCAD in real time.
4. The optimized power line selection method based on the inclined three-dimensional model as claimed in claim 1 or 2, characterized by further comprising the following steps: and changing the line path, returning to the sixth step, re-inputting the coordinates of the corner points, and re-outputting the plain section drawing.
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104008241A (en) * | 2014-05-27 | 2014-08-27 | 江苏省电力设计院 | System and method for multi-window linked line selection and tower arrangement positioning of power transmission lines |
| CN108984965A (en) * | 2018-08-17 | 2018-12-11 | 国网安徽省电力有限公司肥西县供电公司 | Power network line planning and designing method based on GIS and BIM |
| CN109711600A (en) * | 2018-11-27 | 2019-05-03 | 中国公路工程咨询集团有限公司 | Route selection evaluation system and method based on oblique photograph threedimensional model |
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- 2019-05-15 CN CN201910406690.3A patent/CN110162868B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104008241A (en) * | 2014-05-27 | 2014-08-27 | 江苏省电力设计院 | System and method for multi-window linked line selection and tower arrangement positioning of power transmission lines |
| CN108984965A (en) * | 2018-08-17 | 2018-12-11 | 国网安徽省电力有限公司肥西县供电公司 | Power network line planning and designing method based on GIS and BIM |
| CN109711600A (en) * | 2018-11-27 | 2019-05-03 | 中国公路工程咨询集团有限公司 | Route selection evaluation system and method based on oblique photograph threedimensional model |
Non-Patent Citations (2)
| Title |
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| 基于倾斜摄影测量技术的输电线路走廊三维重建;谢涛等;《电力讯息》;20160131;第130-132页 * |
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Effective date of registration: 20231206 Address after: 410000 No. 2 Lugu Lujing Road, Changsha high tech Development Zone, Changsha City, Hunan Province Patentee after: HUNAN KECHUANG ELECTRIC POWER ENGINEERING TECHNOLOGY Co.,Ltd. Address before: No. 471, Laodong West Road, Yuhua District, Changsha City, Hunan Province 41007 Patentee before: HUNAN ELECTRIC POWER DESIGN INSTITUTE OF CHINA ENERGY EGINEERING Corp.,Ltd. |
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