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High-efficiency closed-loop focusing system and method for power grid laser foreign matter removal device

A foreign matter removal and removal device technology, applied in the field of focusing, to avoid damage to transmission lines, reduce product production cycle, and reduce debugging workload

Active Publication Date: 2021-04-02
BEIJING INST OF ELECTRONICS SYST ENG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a high-efficiency closed-loop focusing method for a power grid laser foreign matter removal device to solve the focusing accuracy of the power grid laser foreign matter removal device for emitting laser light, adaptability to environmental temperature changes and transportation vibrations, and reduce system Reduce the workload of debugging calibration personnel and improve the flexibility of focusing

Method used

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  • High-efficiency closed-loop focusing system and method for power grid laser foreign matter removal device

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Embodiment

[0039] Such as figure 1 A high-efficiency closed-loop focusing method for a power grid laser foreign matter removal device includes the following steps:

[0040] S1. Determine the minimum threshold of laser removal power density according to the foreign material to be cleaned, determine the highest threshold of laser removal power density according to the damage threshold of the transmission line, and determine the initial adjustment according to the focal length of the emitting lens and the Gaussian formula within the range of the minimum threshold and the maximum threshold focal parameter,

[0041] Among them, the response of the lowest threshold value of the laser removal power density meets the ability to remove the foreign matter to be cleaned, and the response of the highest threshold value of the laser removal power density meets the requirement of not causing damage to the transmission line;

[0042] S2. The distance measuring device obtains the distance between the c...

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Abstract

The invention discloses a high-efficiency closed-loop focusing system and method for a power grid laser foreign matter removal device. The system has a high degree of automation, can automatically adjust the attenuation amount of the attenuation sheet according to the environmental conditions, and can automatically identify the spot position in the imaging screen. The automatic focusing of the spot diameter information reduces the difficulty of personnel operation for system debugging. The method provided by the invention reduces the debugging workload, is suitable for mass production debugging, and reduces the product production cycle. The method is selected according to the foreign material and wire damage threshold. Appropriate laser spot size to avoid damage to transmission lines.

Description

technical field [0001] The invention relates to a focusing method. More specifically, it relates to a focusing system and method for closed-loop control of a power grid laser foreign matter removal device. Background technique [0002] Using laser technology to clean up foreign objects floating in the high-voltage transmission network, such as kites and plastics, has the advantages of long-distance non-contact, strong safety, and high cost-effectiveness. In order to achieve effective removal of foreign matter, for a certain power laser, the spot needs to be adjusted to an appropriate size. If the spot is too small and the power density of the target is too high, it will cause damage to the transmission wire. . [0003] Common focusing methods in power grid laser foreign matter removal systems include collimated emission method and non-closed-loop focusing method. The collimated emission method is to collimate the laser beam output by the fiber laser directly through the l...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02G1/02B23K26/36B23K26/046G02B7/04
CPCH02G1/02B23K26/36B23K26/046G02B7/04
Inventor 杨静琦姜来周洁马喆
Owner BEIJING INST OF ELECTRONICS SYST ENG