Electric power production area alarm method based on laser scanning point cloud

A technology of electric power production and laser scanning, which is applied in the ubiquitous field of electric power Internet of Things, can solve the problems of electric shock risk, operator mistaken entry, and mistaken maintenance of equipment, etc., to achieve the effect of improving operation safety and strong application value.

Active Publication Date: 2019-12-31
STATE GRID FUJIAN ELECTRIC POWER CO LTD +1
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  • Abstract
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] 1) The physical measures (such as safety nets and barriers) arranged in the operation are easy to be moved and damaged by human beings; the phenomenon of operators ignoring and overstepping the physical measures occurs from time to time;
[0004] 2) When there are multiple maintenance intervals (equipment) operations on site, there is a risk that operators may mistakenly enter irrelevant maintenance intervals or misuse other maintenance equipment;
[0005] 3) When working in the maintenance interval (equipment), especially when working at high places, personnel cannot accurately judge the safety distance of adjacent live equipment, and there is a risk of electric shock;
[0006] 4) Monitor the scope of activities of the operators in real time through the person in charge of on-site operations, and there are omissions in monitoring
[0007] It can be seen that the existing methods still need to be supplemented and improved for how to effectively isolate live intervals and maintenance intervals, how to effectively control the range of activities of on-site operators, and how to effectively ensure a sufficient safety distance from live equipment during operations.

Method used

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  • Electric power production area alarm method based on laser scanning point cloud
  • Electric power production area alarm method based on laser scanning point cloud

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Embodiment Construction

[0036] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0037] The present invention provides an alarm method for power production areas based on laser scanning point clouds, such as figure 1 shown, including the following steps:

[0038] S1. Filter out ground points from the laser point cloud.

[0039] In this embodiment, the random sampling consensus algorithm RANSAC is used to filter the ground points on the point cloud data. Specifically: the average height of the inner group point set obtained by the first plane fitting is used as the average height of the ground points. Next, in each iteration of plane fitting, calculate the distance between the unclassified points in the fitted inner group point set and the fitting plane. If the distance is less than the preset threshold, the unclassified points are classified as ground point. The input point set for each iteration of the plane ...

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Abstract

The invention relates to an electric power production area alarm method based on laser scanning point cloud. The method comprises the following steps: S1, filtering out ground points from the laser point cloud; S2, performing super voxel segmentation on the point cloud of which the ground point is filtered out; S3, marking charged supervoxels, and calculating a dangerous space; S4, generating a safe operation space and a dangerous operation space based on the dangerous space obtained in the step S3, the dangerous space generated when the power-off maintenance equipment is electrified and the operation space; S5, after the equipment with the positioning alarm function enters the operation site, judging whether the equipment leaves the safe operation space or enters the dangerous operation space or not in real time, and if yes, conducting corresponding alarm; and S6, after operation is finished and power transmission is recovered, recovering the dangerous space. The method is beneficialto improving the operation safety.

Description

technical field [0001] The invention relates to the technical field of the ubiquitous electric power internet of things, in particular to a method for warning an electric power production area based on a laser scanning point cloud. Background technique [0002] The main reasons for the frequent occurrence of safety accidents in substation operation and maintenance work are the accidental entry into the live interval, and the distance between the live equipment and the live equipment during operation not meeting the safety requirements. The operation and maintenance personnel of the substation distinguish and isolate the live interval (equipment) and the maintenance interval (equipment) by arranging fences and barriers, hanging signs and other physical measures to achieve the purpose of limiting the working space of operators. Carry out maintenance work to implement the work guardianship system, and supervise and standardize the scope of work and work behavior of the staff th...

Claims

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Application Information

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IPC IPC(8): G06T7/11H02B3/00G08B13/00
CPCG06T7/11H02B3/00G08B13/00G06T2207/10028
Inventor 吴凡陈熹郑超婧柯天兵林巍杨力帆卓建宗
Owner STATE GRID FUJIAN ELECTRIC POWER CO LTD
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