CN114046776A - Power transmission engineering water and soil conservation measure implementation checking system - Google Patents
Power transmission engineering water and soil conservation measure implementation checking system Download PDFInfo
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- CN114046776A CN114046776A CN202111108019.4A CN202111108019A CN114046776A CN 114046776 A CN114046776 A CN 114046776A CN 202111108019 A CN202111108019 A CN 202111108019A CN 114046776 A CN114046776 A CN 114046776A
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- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
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- 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
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Abstract
The invention relates to the technical field of power transmission engineering water and soil conservation measure implementation condition checking, and discloses a power transmission engineering water and soil conservation measure implementation checking system, which comprises: the system comprises a data collection subsystem, an aerial photography subsystem, a data processing subsystem, a real situation checking subsystem and a result checking subsystem; an orthographic image is made before remote sensing inspection of water and soil conservation measures is carried out, space positioning and geographic matching are carried out on the aerial image, and the problem that construction disturbance area calculation cannot be carried out is solved; when the tower footing aerial image is manufactured, the POS information, the attitude information and the accurate coordinates of the towers of the original aerial image are combined, and the standard tower footing aerial image is generated through batch calculation, so that the manufacturing efficiency of the tower footing aerial image is greatly improved; before remote sensing interpretation of water and soil conservation measures is carried out, a remote sensing interpretation mark library is established, and interpretation result difference caused by experience difference among different operators is reduced.
Description
Technical Field
The invention relates to the technical field of power transmission engineering water and soil conservation measure implementation check, in particular to a power transmission engineering water and soil conservation measure implementation check system.
Background
The technology for checking the implementation situation of the water and soil conservation measures in the power transmission engineering is a technology for evaluating the implementation situation and the effect of the environment-friendly water conservation work in the construction site of the power transmission engineering, and the main flow is divided into three parts: (1) acquiring state information of an engineering construction site; (2) generating a tower footing image; (3) evaluating the implementation condition of the environmental protection work;
(1) acquiring the state information of the engineering construction site:
recording the environment-friendly water conservation operation condition of the engineering construction site by adopting a photographing or remote sensing technology to obtain a digital image or remote sensing data of the engineering construction site; the shooting is an information collection mode of manual field investigation, the working state information of the environmental water conservation of the engineering construction field is recorded through a camera or a mobile APP, the time period is long, and the overall implementation situation of the engineering environmental water conservation is difficult to be mastered macroscopically;
the remote sensing technology is divided into two cases: the first one is that through the sensor on the artificial earth satellite, the electromagnetic wave characteristic of the engineering construction site is acquired remotely, through the transmission, storage, processing and analysis of the information, the assessment of the environmental water conservation work information of the engineering construction site is realized, the method has wide detection range, fast data acquisition, no limitation of the landform and geomorphic conditions, but easy influence of the weather, meteorological conditions and the like and the satellite resource allocation; the spatial resolution of the satellite image is different from 2 meters to 0.5 meter; the second type is that visible light information of an engineering construction site is obtained through a measuring camera or a non-measuring camera on an aviation airplane such as a manned airplane, an unmanned aerial vehicle and the like, and the environment-friendly working state of the engineering construction site is evaluated through storage, processing and analysis of the information, so that the method is flexible in image acquisition, small in cloud image receiving compared with a satellite, higher in imaging quality and accuracy (superior to 0.1m), and high in maneuverability and acquisition efficiency;
(2) generating a tower footing image:
the manual on-site investigation is realized by manually recording the pole tower number corresponding to each digital photo, and sending the pole tower number to the subsequent process after selection and arrangement; the process can be optimized by means of mobile APP and the like, but a large amount of personnel is required to participate as a whole;
the satellite remote sensing obtains a standard satellite image which can be positioned and analyzed by performing professional processing procedures such as radiometric calibration, atmospheric correction, orthometric correction and the like on an original image, and generates a tower footing image by combining the actual coordinates of a transmission project tower, thereby facilitating subsequent processing;
the aerial remote sensing shoots an image of engineering construction through an unmanned aerial vehicle, manually records the number of a corresponding tower, and then manually selects and arranges the tower to obtain an unmanned aerial vehicle image of each base tower;
(3) and (3) evaluating the implementation condition of the environmental protection work:
and evaluating the environment-friendly water conservation operation effect of the engineering construction site by performing water and soil conservation measure implementation condition interpretation on the tower footing image according to the personal experience of operators.
Disclosure of Invention
Technical problem to be solved
Aiming at the defects of the prior art, the invention provides a checking system for implementation of water and soil conservation measures in power transmission engineering, which aims to solve the following problems:
1. the construction disturbance area is inconvenient to calculate at present;
2. the prior art cannot calculate and generate standard tower footing aerial images in batches, so that the problems of low efficiency of tower footing aerial image manufacturing, labor input and cost increase are caused;
3. at present, the interpretation result difference problem caused by experience difference among different operators is solved.
(II) technical scheme
In order to achieve the purpose, the invention provides the following technical scheme:
a power transmission project water and soil conservation measure implementation checking system comprises: the system comprises a data collection subsystem, an aerial photography subsystem, a data processing subsystem, a real situation checking subsystem and a result checking subsystem;
the data processing subsystem is used for sorting the acquired aerial data and manufacturing an orthoimage of the tower footing and the line channel;
the specific manufacturing method of the orthoimage comprises the following steps:
step S1, extracting corresponding discrete points in the aerial photography data, wherein the discrete points form a point set mpa, and a triangular set mta and a line set mla are set;
step S2, forming an initial edge, specifically: firstly, traversing a point set mpa, searching a space point with the minimum X value in a coordinate system, and marking as an F point; then traversing the point set mpa to find a point closest to the point F, and marking as a point S; establishing edge object ml for two end points based on the obtained F point and S pointF-SAnd apply the edge object mlF-SAdding the obtained product into the mla;
step S3, forming a first triangle, specifically: traversing the point set mpa to find a point, and enabling the point to be matched with the edge object mlF-SThe included angle alpha formed by the two end points F and S is the largest, wherein the value range of alpha is 0-180 degrees, namely, the point with the smallest cosine value of the included angle alpha is found and is marked as a point T;
establishing a first triangle mt by using the F point, the S point and the T point, adding the first triangle mt into the triangle set mta, and generating two new edges mlT-FAnd mlT-SAdding the extension edge into the mla;
step S4, generating all triangles in a loop, the specific method includes: traversing the point set mpa, selecting a proper point according to the minimum cosine value method in the step S3, enabling the point and two endpoints of any one generated extension edge to form a new triangle mt, adding the new triangle mt into the triangle set mta, and adding two newly generated extension edges into the line set mla;
and step S5, performing spatial positioning and geographic matching on aerial data, adding a positioning and attitude-fixing system, and calculating in batch to generate standard orthoimages of the tower footing and the line channel based on the rear intersection principle of photogrammetry.
Furthermore, the implementation condition checking subsystem establishes a water and soil conservation remote sensing interpretation mark based on normalized data, assists water and soil conservation acceptance through multi-user cooperative work and checks the implementation condition of measures.
Furthermore, the implementation condition checking subsystem carries out environmental protection house removal, track ground recovery implementation judgment, and identification, analysis and judgment of environment sensitive point change conditions.
Further, the implementation condition checking subsystem carries out judgment of tower footing area water and soil conservation design measures and implementation in-place remote sensing interpretation judgment.
Furthermore, the checking result subsystem carries out multi-dimensional statistics, analysis and display on the water and soil remote sensing interpretation result according to whether the water and soil remote sensing interpretation result is in place or not, different measure types and sub-belonging standard sections.
Furthermore, the subsystem for checking the achievements combines the water and soil conservation acceptance service flow of the power transmission project, and establishes a water and soil conservation acceptance checking support platform through database establishment, functional design and realization, platform testing and version release.
Further, the data collection subsystem is used for collecting and standardizing water and soil conservation acceptance data.
(III) advantageous technical effects
Compared with the prior art, the invention has the following beneficial technical effects:
1. an orthographic image is made before remote sensing of water and soil conservation measures is carried out, space positioning and geographic matching are carried out on the aerial image, and the problem that construction disturbance area calculation cannot be carried out is solved;
2. when the tower footing aerial image is manufactured, the POS information and the attitude information of the original aerial image and the accurate coordinate information of a tower are combined, and the standard tower footing aerial image is generated by batch calculation of a computer on the basis of the rear intersection principle of photogrammetry, so that the efficiency of manufacturing the tower footing aerial image is greatly improved, and the labor input and the cost are reduced;
3. before the remote sensing interpretation of the water and soil conservation measures is carried out, a remote sensing interpretation mark library is established, the interpretation result difference caused by experience difference among different operators is reduced, and the method is easy to popularize.
Drawings
Fig. 1 is a flow chart of steps of a checking method of a checking system for implementation of water and soil conservation measures in power transmission engineering.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
A checking system for the implementation of water and soil conservation measures in power transmission engineering is shown in figure 1 and comprises: a data collection subsystem for collecting data encompassing: multiple types and formats of special design data of towers, paths, water and soil conservation, aerial images, house removal pictures and the like; extracting position information and related attribute information of each object maintained by water and soil by adopting a unified coordinate system; a water conservation measure classification and classification organization system is provided, the water conservation design requirements are arranged according to a pole tower, environment sensitive points are classified according to administrative regions of all levels, and the building removal information is collected according to construction sections and is subjected to classification and classification standardized treatment;
further comprising: the aerial photography subsystem is used for guiding aerial photography to acquire a target area, an image coverage width and a ground resolution acquisition requirement;
the aerial photography subsystem adopts a delta wing carrying photogrammetry equipment to carry out image acquisition; the device is provided with 5 identical digital cameras, and simultaneously carries high-precision IMU/BDS equipment to acquire required information;
acquiring control point data according to the actual condition of a measured area, wherein the exposure positions of the aerial photos and the control points are distributed, and one control point is distributed at intervals of 12-13 base lines at intervals of 4-5 aerial bands;
the aerial photography subsystem utilizes BDS/IMU to assist aerial triangulation;
further comprising: the data processing subsystem is used for carrying out necessary arrangement and pretreatment on the acquired aerial data and making an orthoimage of the tower footing and the line channel;
the specific method for producing the orthoimage is described as follows:
step S1, extracting corresponding discrete points in the aerial photography data, wherein the discrete points form a point set mpa (point pointer array), and a triangle set mta (triangle pointer array) and a line set mla (line pointer array) are set;
step S2, forming an initial edge, traversing the point set mpa first, searching for a point which can be on one side of the area, and searching for a space point with the minimum X value in the scheme, and marking as a point F;
then traversing the point set mpa again to find a point closest to the point F, and marking as a point S;
establishing edge object ml for two end points based on the obtained F point and S pointF-SAnd apply the edge object mlF-SAdding the obtained product into the mla;
step S3, forming a first triangle, traversing the point set mpa to find a T point, the T point and the edge object mlF-SThe included angle alpha formed by the F point and the S point of the two end points is maximum, the cosine value of the included angle is selected for calculation, the variation range of the included angle is 0-180 degrees, and the cosine function is a decreasing function in the interval, so that the point with the minimum cosine value of the included angle alpha is found, and the point is marked as a T point;
establishing a first triangle mt by using the F point, the S point and the T point, performing corresponding post-processing, adding the first triangle mt into the triangle set mta, and generating two new edges mlT-FAnd mlT-SAdding the extension edge into the edge set mla;
step S4, circularly generating all triangles;
firstly, if the extension edge is used up, the step S5 is carried out;
secondly, one expansion is taken to carry out validity judgment while entering next cycle if unavailable;
traversing the point set mpa, judging by using the availability condition of the points, deleting unavailable points from the point set mpa, selecting appropriate points by referring to the minimum cosine value method in the step S3, forming a triangle with two end points of an expansion edge, performing triangle validity judgment, establishing a triangle object, adding the triangle object into the triangle set mta, adding two newly generated expansion edges into the line set mla, and performing corresponding post-processing;
loop variable processing, returning to the condition judgment part to continue the loop;
step S5, carrying out space positioning and geographical matching on aerial data, adding a positioning and attitude-fixing system, and calculating in batch to generate standard orthoimages of the tower footing and the line channel based on the rear intersection principle of photogrammetry;
wherein, in the growth process of the triangle, the following conditions are set: the stand-by point and the two end points of the expansion edge are not coincident and collinear on the same projection plane, at least one edge in the edge set adjacent to the stand-by point is expandable, on the same projection plane, the stand-by point and the third vertex of the triangle where the expansion edge is located (the remaining vertex except the expansion edge in the triangle) are positioned at two sides of the expansion edge, and unusable points are removed from the usable point set; whether one point can participate in the generation of a new triangle or not can be quickly judged, so that the technical effect of improving the generation efficiency of the orthoimage is achieved;
moreover, an orthographic image is manufactured before remote sensing of water and soil conservation measures is carried out, space positioning and geographic matching are carried out on the aerial image, and the problem that construction disturbance area calculation cannot be carried out is solved;
moreover, when the tower footing aerial image is manufactured, the POS information and the attitude information of the original aerial image and the accurate coordinate information of the tower are combined, and the standard tower footing aerial image is generated by batch calculation through a computer on the basis of the rear intersection principle of photogrammetry, so that the efficiency of manufacturing the tower footing aerial image is greatly improved, and the labor input and the cost are reduced;
further comprising: the system comprises a real-time condition checking subsystem, a remote sensing interpretation marking system and a real-time condition checking subsystem, wherein the real-time condition checking subsystem establishes a water and soil conservation remote sensing interpretation marking based on normalized data and carries out remote sensing interpretation real-time condition judgment on water and soil conservation acceptance check; carrying out dismantling and implementation judgment of the environment-friendly house, implementation judgment of track ground recovery, and identification, analysis and judgment of the change condition of the environment sensitive point; carrying out discrimination on the type of a water and soil conservation design measure in a tower foundation area and carrying out in-place remote sensing interpretation discrimination;
before the remote sensing interpretation of the water and soil conservation measures is carried out, a remote sensing interpretation mark library is established, so that the interpretation result difference caused by experience difference among different operators is reduced, and the method is easy to popularize;
further comprising: the system comprises a verification result subsystem, wherein the verification result subsystem carries out multidimensional statistics, analysis and display on water and soil conservation remote sensing interpretation results according to the fact that whether the water and soil conservation is in place or not, different measure types, sub-belonging standard sections and the like, compiles a work report for verifying the water and soil conservation implementation condition, combines a water and soil conservation acceptance service flow of the power transmission engineering, establishes a water and soil conservation acceptance verification supporting platform through database establishment, functional design and implementation, platform testing, version release and the like, and has the following functions:
(1) sensitive points can be managed indoors, and water conservation implementation conditions are counted in types and standard sections;
(2) rapidly screening towers with water conservation measures which are not in place, checking design requirements and three-dimensional models of the towers, and performing comprehensive image analysis in comparison design and acceptance stages to obtain implementation conclusions;
(3) the system has an early warning function, realizes the rectification of a closed loop, and records the control process;
(4) the function of examining and approving the environmental protection before sequence conversion is realized;
(5) integrating the environmental protection measure quantity and the cost information in the design stage, and realizing the function of comparing and analyzing the measure quantity in the completion stage;
although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (7)
1. A power transmission engineering water and soil conservation measure implementation checking system is characterized by comprising: the system comprises a data collection subsystem, an aerial photography subsystem, a data processing subsystem, a real situation checking subsystem and a result checking subsystem;
the data processing subsystem is used for sorting the acquired aerial data and manufacturing an orthoimage of the tower footing and the line channel;
the specific manufacturing method of the orthoimage comprises the following steps:
step S1, extracting corresponding discrete points in the aerial photography data, wherein the discrete points form a point set mpa, and a triangular set mta and a line set mla are set;
step S2, forming an initial edge, specifically: firstly, traversing a point set mpa, searching a space point with the minimum X value in a coordinate system, and marking as an F point; then traversing the point set mpa to find a point closest to the point F, and marking as a point S; establishing edge object ml for two end points based on the obtained F point and S pointF-SAnd apply the edge object mlF-SAdding the obtained product into the mla;
step S3, forming a first triangle, specifically: traversing the point set mpa to find a point, and enabling the point to be matched with the edge object mlF-SThe included angle alpha formed by the two end points F and S is the largest, wherein the value range of alpha is 0-180 degrees, namely, the point with the smallest cosine value of the included angle alpha is found and is marked as a point T;
establishing a first triangle mt by using the F point, the S point and the T point, adding the first triangle mt into the triangle set mta, and generating two new edges mlT-FAnd mlT-SAdding the extension edge into the mla;
step S4, generating all triangles in a loop, the specific method includes: traversing the point set mpa, selecting a proper point according to the minimum cosine value method in the step S3, enabling the point and two endpoints of any one generated extension edge to form a new triangle mt, adding the new triangle mt into the triangle set mta, and adding two newly generated extension edges into the line set mla;
and step S5, performing spatial positioning and geographic matching on aerial data, adding a positioning and attitude-fixing system, and calculating in batch to generate standard orthoimages of the tower footing and the line channel based on the rear intersection principle of photogrammetry.
2. The system for checking the implementation of the water and soil conservation measures in the power transmission project according to claim 1, wherein the implementation condition checking subsystem is used for establishing a water and soil conservation remote sensing interpretation mark based on normalized data, assisting water and soil conservation acceptance through multi-person cooperative work and checking the implementation condition of the measures.
3. The system for checking implementation of water and soil conservation measures in power transmission engineering according to claim 1, wherein the implementation condition checking subsystem performs environmental protection house removal, ground restoration implementation judgment, and identification, analysis and judgment of environment sensitive point change conditions.
4. The system for checking implementation of water and soil conservation measures in power transmission engineering according to claim 1, wherein the implementation condition checking subsystem performs discrimination of water and soil conservation design measures in a tower footing area and discrimination of remote sensing interpretation of implementation in place.
5. The system for checking implementation of water and soil conservation measures in power transmission engineering according to claim 1, wherein the subsystem for checking results carries out multi-dimensional statistics, analysis and display on the remote sensing interpretation result of water and soil conservation according to implementation in place, different measure types and sub-standard sections.
6. The system for checking the implementation of the water and soil conservation measures in the power transmission project according to claim 5, wherein the subsystem for checking the achievement is combined with the water and soil conservation acceptance service process of the power transmission project, and a water and soil conservation acceptance checking support platform is established through database establishment, functional design and implementation, platform testing and version release.
7. The system for verifying the implementation of water and soil conservation measures in power transmission projects of claim 1, wherein the data collection subsystem is used for collecting and standardizing water and soil conservation acceptance data.
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