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Sagging monitoring system and method based on laser 3D reconstruction

A laser three-dimensional and monitoring system technology, applied in measurement devices, optical devices, instruments, etc., can solve problems such as maintenance difficulties, and achieve the effects of high laser ranging accuracy, convenient debugging and maintenance, and strong anti-interference.

Inactive Publication Date: 2018-11-20
SICHUAN HUIYUAN OPTICAL COMM CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, the monitoring methods for conductor sag parameters include 1. Inclination method: calculate the conductor sag by measuring the inclination angle of the suspension point of the transmission conductor; 2. Temperature method: calculate the relationship between the temperature and the conductor stress by measuring the temperature of the transmission conductor 3. Image method: calculate the wire sag by processing and analyzing the high-precision wire sag image taken; 4. GPS method: calculate the wire by positioning the coordinates installed at the wire sag point through the GPS global positioning system Sag; the above 4 methods can all measure the sag of the wire, but each has some problems: the image method must be used to measure the sag of the wire when the weather is clear and the wire is unobstructed, which is not suitable for mountainous areas and has a large error; The inclination method, the temperature method and the GPS method all need to install monitoring devices on the wires, which have the problems of power supply, communication and strong electromagnetic interference, and if the monitoring equipment installed on the wires breaks down, it will be very difficult to maintain. Maintenance in case of power outage

Method used

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  • Sagging monitoring system and method based on laser 3D reconstruction
  • Sagging monitoring system and method based on laser 3D reconstruction
  • Sagging monitoring system and method based on laser 3D reconstruction

Examples

Experimental program
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Embodiment 1

[0034] like figure 1 , figure 2 As shown, the sag monitoring system based on laser three-dimensional reconstruction provided in this embodiment is used to control the pan-tilt module 2 to detect the wire 4 sag in the set area; it includes a solar charging module, a laser sensor 1, and a pan-tilt module 2 And the host 3, the solar charging module is connected with the laser sensor 1, the pan-tilt module 2 and the host 3, the laser sensor 1 is installed on the pan-tilt module 2, and the host 3 is connected with the pan-tilt module 2.

[0035] The solar charging module is used to provide the power required by the system, and it includes a solar panel connected in sequence, a charge controller and a storage battery, the solar panel is used to absorb light energy and convert light energy into electrical energy, and the charge controller is used to control The charging and discharging of the battery, the battery is used to store electrical energy and provide electrical energy to t...

Embodiment 2

[0042] like image 3 As shown, the sag monitoring method based on laser three-dimensional reconstruction provided in this embodiment includes the following steps:

[0043] (1) Establish a three-dimensional rectangular coordinate system: establish a three-dimensional rectangular coordinate system (X, Y, Z) with the pan / tilt module 2 as the coordinate origin O, take the extension direction of the wire 4 as the X axis, and take the vertical direction perpendicular to the extension direction of the wire 4 is the Y axis, and the horizontal direction is perpendicular to the extension direction of the wire 4 as the Z axis;

[0044] (2) planning laser scanning path: control the rotation path of the pan-tilt module 2 by the host computer 3 to plan the setting area of ​​the laser sensor 1, the rotation path includes the pitch angle β of the laser sensor 1 and the horizontal rotation direction of the pan-tilt module 2;

[0045] (3) scan and obtain data: the laser sensor 1 scans accordin...

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Abstract

The invention discloses a sagging monitoring system and method based on laser 3D reconstruction. The system comprises a solar charging module, a laser sensor, a holder module and a host; the laser sensor is installed on the holder module, and the host is connected with the holder module; the laser sensor is used to scan a set area; the holder module is used to plan the set area according to a rotation path, and obtains scanning data of the laser sensor as well as the horizontal rotation angle theta of a holder; and the host is used to control the rotation path and obtain the scanning data of the laser sensor, and calculates a lead sagging according to the rotation path and the scanning data. A laser ranging finding principle is combined with the holder capable of bidirectional rotation torealize area scanning for a lead, a movement track fo the lead is reconstructed by combining a trigonometric function, the parabola principle and parameters as the tower height, the installation position of the holder module and line span, the lead sagging and change value are calculated, and the system and method can be used to measure the lead sagging in any region, and are not influenced by weather or environment.

Description

technical field [0001] The invention relates to a sag monitoring system and method based on laser three-dimensional reconstruction, and belongs to the technical field of online monitoring of power systems. Background technique [0002] The sag parameter of the conductor of the transmission line is one of the important indicators to reflect whether the line is safe to operate, especially after the new line is erected, the conductor will sag to varying degrees; if the sag parameter of the conductor of the transmission line is too large, the electric Under the action of power, the wires may fluctuate greatly, causing mixed wires to cause a short circuit; at the same time, roads and buildings below the wires may cause accidents due to insufficient distance; Accidents of wire disconnection occurred. Therefore, real-time monitoring of conductor sag of transmission lines is very necessary. [0003] At present, the monitoring methods for conductor sag parameters include 1. Inclina...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01B11/02
CPCG01B11/02
Inventor 苟科磊
Owner SICHUAN HUIYUAN OPTICAL COMM CO LTD