Complex-color laser foreign matter removing device and method based on foreign matter transparency

Abstract

The invention provides a complex-color laser foreign matter removing device and method based on foreign matter transparency. The device comprises a complex-color laser generation device, a complex-color laser synthesis beam shrinking device, a holder, and a laser energy detector, wherein the complex-color laser generation device comprises a plurality of laser generators with different wave bands, the complex-color laser synthesis beam shrinking device conducts one-way breakover and collimation focusing on lasers of different wave bands emitted by the complex-color laser generation device to form a complex-color laser beam, the complex-color laser beam is emitted to foreign matter under the control of the holder, the laser energy detector receives reflected lasers reflected by the foreign matter of the near-infrared wave band, the transparency of the foreign matter is determined through the energy of the reflected laser, and the complex-color laser synthesis beam shrinking device adjusts the laser composition and power of the complex-color laser beam according to the transparency of the foreign matter to cut the foreign matter. According to the device and the method, higher cleaning efficiency is achieved by judging the transparency of the foreign matters and adjusting the working condition and the power of the laser generator with each wavelength.

Description

technical field [0001] The present invention relates to the technical field of foreign matter removal on overhead transmission lines, and more particularly, to a multi-color laser foreign matter removal device and method based on foreign matter transparency. Background technique [0002] Due to the complexity of the working environment, overhead transmission lines are often entangled by floating foreign objects such as plastic films and kite lines, or obstacles such as trees. These situations often lead to insulation problems of the line, which in turn damages the economy, safety, and reliability of the power grid. [0003] In this context, laser long-distance cutting technology has been more and more widely used in power grids due to its safety and flexibility, and has gradually begun to replace traditional manual obstacle removal methods. The existing laser technology can emit a beam of monochromatic laser with near-infrared wavelength or mid-infrared wavelength, and irra...

AI Technical Summary

Problems solved by technology

Under normal circumstances, dark non-transparent foreign matter such as tree barriers can well absorb short-wavelength lasers (mainly near-infrared wavelengths) produced by semiconductors and fiber lasers, and long-wavelength lasers produced by CO2 lasers (mainly mid-infrared wavelengths). , but short-wavelength lasers are more popular due to their higher photoelectric conversion efficiency and low-cost focusing system; and light-colored transparent foreign objects such as plastic films have higher transmission and reflection characteristics for short-wavelength lasers, resulting in waste of laser energy and cutting The work efficiency is low, and it is often necessary to use long-wavelength lasers to complete the cutting

Traditional lasers do not have the ability to simultaneously output multi-wavelength polychromatic lasers, and it is difficult to remove every foreign matter efficiently and at low cost in actual use

Images