CN-122020061-A - Identification method and system for power line tree obstacle cleaning

CN122020061ACN 122020061 ACN122020061 ACN 122020061ACN-122020061-A

Abstract

The invention discloses a method and a system for identifying a tree barrier clearing of an electric power line, which are used for acquiring natural tree node information of a target area of the electric power line to be built and a space path of the electric power line to be built, carrying out space superposition analysis on the basis of the natural tree node information and the space path, screening out potential tree barrier objects, selecting a geometric volume model of the potential tree barrier objects according to the natural tree node information, calculating predicted compensation amounts of the potential tree barrier objects by combining the geometric volume model through a density-based clustering algorithm, and clearing and judging the potential tree barrier objects on the basis of the natural tree node information to obtain a tree barrier clearing strategy, carrying out clustering and volume calculation on the potential tree barrier objects on the basis of the natural tree node information and combining a density-based clustering algorithm and the geometric volume model, and accurately and efficiently estimating the compensation amounts of the tree barrier clearing, thereby comprehensively and accurately identifying the tree barrier and the compensation amounts to be cleared.

Inventors

LIN ZHICHAO
HUANG BINGHUANG
LIN CONGHUI
XU HAOYU
Chen Kunwen
YANG WENJIE
ZHANG SHANSHAN
Liao Shangyu
HE MINMIN

Assignees

国网福建省电力有限公司
国网福建省电力有限公司三明供电公司
国网福建省电力有限公司大田县供电公司

Dates

Publication Date: 20260512
Application Date: 20260212

Claims (10)

1. The identification method for clearing the tree obstacle of the power line is characterized by comprising the following steps of: Acquiring natural tree node information of a target area of a power line to be built and a space path of the power line to be built; Performing space superposition analysis based on the natural tree node information and the space path, and screening out potential tree obstacle objects; selecting a geometric volume model of the potential tree obstacle object according to the natural tree node information; and calculating the predicted compensation amount of the potential tree-obstacle object by combining the geometric volume model through a clustering algorithm based on density, and meanwhile, performing cleaning judgment on the potential tree-obstacle object based on the natural tree node information to obtain a tree-obstacle cleaning strategy.
2. The method for identifying power line tree obstacle clearing as claimed in claim 1, wherein the screening out potential tree obstacle objects based on the spatial congruence analysis of the natural tree node information and the spatial path comprises: Setting a safety buffer area according to the space path; And carrying out space superposition analysis on the natural tree node information and the safety buffer area, and screening out trees in the safety buffer area to serve as potential tree obstacle objects.
3. The method for identifying power line tree obstacle clearing as recited in claim 1 wherein said natural tree node information comprises tree species; selecting a geometric volume model of the potential tree-obstacle object according to the natural tree node information comprises: if the tree species is a broad-leaved tree, selecting a geometric volume model of the potential tree obstacle object as an ellipsoid volume model; And if the tree species is conifer, selecting the geometric volume model of the potential tree obstacle object as a cone frustum superposition model.
4. The method for identifying power line tree obstacle clearing as recited in claim 3 wherein said natural tree node information further comprises geographic coordinates; calculating an estimated reimbursement amount for the potential tree-obstacle object in combination with the geometric volume model using a density-based clustering algorithm includes: performing cluster analysis on the potential tree obstacle object by using a density-based clustering algorithm according to the geographic coordinates to obtain Lin Ban units; calculating the volume of each tree by using a geometric volume model corresponding to each tree in the Lin Ban units; accumulating the volumes of each tree to obtain the total volume of Lin Ban units; And calculating the estimated compensation amount of the Lin Ban unit according to the total volume of the Lin Ban unit and the preset unit volume compensation unit price.
5. The method for identifying power line tree obstacle clearing as recited in claim 4 wherein said natural tree node information further comprises breast diameter and tree height; calculating the volume of each tree using the geometric volume model corresponding to each tree in the Lin Ban units comprises: If the geometric volume model is the ellipsoid volume model, calculating the volume of each tree by using the ellipsoid volume model according to the breast diameter and the tree height of each tree, specifically: ; In the formula, Representing the volume of the tree and, Represents the breast diameter of the tree, Representing the tree height of the tree; if the geometric volume model is the truncated cone superposition model, calculating the volume of each tree by using the truncated cone superposition model according to the breast diameter and the tree height of each tree, specifically: 。
6. The method for identifying a power line tree obstacle clearing as claimed in claim 5, wherein clearing the potential tree obstacle object based on the natural tree node information comprises: acquiring the lead erection height and the safety clearance of the power line to be built; estimating the maximum length of outward extension of branches according to the tree species and the tree height of the potential obstacle object; Calculating Euclidean distance from the potential tree barrier object to the planned power line based on the lead erection height and the maximum length; and judging whether the Euclidean distance is smaller than the safe clear distance, if so, determining that the tree barrier cleaning strategy is that the potential tree barrier object needs to be cleaned, and if not, determining that the tree barrier cleaning strategy is that the potential tree barrier object does not need to be cleaned.
7. The method of claim 6, wherein estimating the maximum length of outward extension of the branches based on the tree species and the tree height of the potential tree-obstacle object comprises: Determining corresponding correction coefficients according to the tree species of the potential tree obstacle object; Calculating the maximum length of outward extension of branches according to the correction coefficient and the tree height of the potential tree obstacle object, wherein the maximum length is specifically as follows: ; In the formula, Indicating the maximum length of outward extension of the fingers, The correction coefficient is represented by a number of coefficients, Representing the tree height.
8. The method for identifying a power line tree obstacle clearing as defined in claim 5, further comprising, after obtaining the natural tree node information of the target area of the power line to be built and the spatial path of the power line to be built: if the natural tree node information has a missing field, judging whether the missing field is the tree species, the tree height or the breast diameter; if the missing field is the tree species, determining the tree species according to a vegetation rule of the target area; and if the missing field is the tree height or the breast diameter, determining a default value of the tree height or the breast diameter of the target area according to the tree species.
9. The method of claim 4, wherein calculating the estimated reimbursement amount for the Lin Ban unit based on the total volume of the Lin Ban units and a preset unit volume reimbursement unit price comprises: determining a preset unit volume compensation unit price according to the tree species of the Lin Ban units; multiplying the total volume of the Lin Ban units by the preset unit volume reimbursement unit price to obtain the predicted reimbursement amount of the Lin Ban units.
10. An identification system for power line obstacle clearing comprising a memory, a processor and a computer program stored on the memory and executable on the processor, characterized in that the processor, when executing the computer program, implements the steps of an identification method for power line obstacle clearing as claimed in any one of claims 1 to 9.

Description

Identification method and system for power line tree obstacle cleaning Technical Field The invention relates to the technical field of power lines, in particular to a method and a system for identifying power line tree obstacle clearing. Background In the current power line design and construction process, the tree barrier problem is one of important factors influencing the safe operation of the line. To ensure a safe clearance distance between the wires and vegetation, trees within the wire corridor that may encroach on the safe area must be trimmed or cut. The main current method comprises (1) manual on-site investigation combined with manual drawing estimation, namely engineering personnel conduct on-site investigation along a planned route path, record the position, tree species and number of areas with tree obstacle risk, judge whether cutting is needed or not according to experience, manually define cutting ranges on CAD drawings, manually compile a compensation list according to local compensation standards, and (2) part of high-end projects are identified in an auxiliary mode through remote sensing images, namely vegetation coverage is judged by using high-resolution satellite or unmanned aerial vehicle images, crown areas are primarily identified by using an image segmentation algorithm, and the tree height is estimated by matching with digital elevation model (Digital Elevation Model, DEM) data, but still manually define route corridor boundaries and judge cutting ranges. These two methods have the following disadvantages: 1) The artificial dependence is strong, the subjectivity is strong, and the method is easy to leak, namely, the cutting range is inconsistent due to the experience difference of different engineers, the remote areas are difficult to fully cover the investigation, omission is caused, and sudden compensation disputes are caused during later construction; 2) The method lacks space quantitative analysis means and has low precision, wherein the traditional method only counts the number of trees, ignores key parameters such as the size, the height, the inclination direction and the like of crowns, cannot accurately estimate the actual felling volume, and cannot accurately estimate the compensation amount, so that the deviation between rough estimation and actual occurrence amount in a grinding stage is always more than 30%, and the investment control and approval passing rate are affected; 3) The compensation amount generation efficiency is low, the standardization degree is poor, the compensation basis is mostly paper machine account or Excel form, and the compensation amount is difficult to be correlated with the space position of a Geographic Information System (GIS), so that compensation amount estimation does not accord with the actual situation, updating is difficult, and audit tracing is inconvenient. Disclosure of Invention The invention aims to solve the technical problem of providing a method and a system for identifying the clearance of the tree obstacle of the power line, which can comprehensively and accurately identify the tree obstacle and the compensation amount to be cleared. In order to solve the technical problems, the invention adopts the following technical scheme: an identification method for power line tree obstacle cleaning, comprising the following steps: Acquiring natural tree node information of a target area of a power line to be built and a space path of the power line to be built; Performing space superposition analysis based on the natural tree node information and the space path, and screening out potential tree obstacle objects; selecting a geometric volume model of the potential tree obstacle object according to the natural tree node information; and calculating the predicted compensation amount of the potential tree-obstacle object by combining the geometric volume model through a clustering algorithm based on density, and meanwhile, performing cleaning judgment on the potential tree-obstacle object based on the natural tree node information to obtain a tree-obstacle cleaning strategy. In order to solve the technical problems, the invention adopts another technical scheme that: The identification system for the power line tree obstacle clearing comprises a memory, a processor and a computer program which is stored in the memory and can run on the processor, wherein the processor realizes each step in the identification method for the power line tree obstacle clearing when executing the computer program. The invention has the beneficial effects that: The method comprises the steps of obtaining natural tree node information of a target area of a planned power line and a space path of the planned power line, carrying out space superposition analysis based on the natural tree node information and the space path, screening potential tree-obstacle objects, selecting a geometric volume model of the potential tree-obstacle objects according to the natural tr