Method and system for remotely monitoring laser power of laser device on basis of virtual instruments

Abstract

The invention provides a method and a system for remotely monitoring laser power of a laser device on the basis of virtual instruments. The method includes acquiring the laser power of laser beams emitted by the laser device by the aid of a laser power meter; acquiring temperatures of a condenser barrel of the laser device by the aid of a temperature sensor; transmitting data measured by the laser power meter and the temperature sensor to a remote client via a data acquisition card, an upper computer and a cloud server; enabling the remote client to generate laser device running control instructions according to fault conditions of the laser device; transmitting the laser device running control instructions to the upper computer via the cloud server and controlling the laser device when the laser device runs. The method and the system have the advantages that the laser device can be remotely monitored and controlled in real time, the system is stable and safe and is convenient to operate, and the product processing quality can be improved.

Description

technical field [0001] The invention relates to the field of lasers, in particular to a method and system for remote monitoring of laser power of lasers based on virtual instruments. Background technique [0002] Laser output power is one of the key parameters of the laser. In the field of laser processing, the laser power of the laser directly affects the processing range, processing technology and processing quality parameters. Therefore, the detection of laser power is an indispensable part of the laser. In addition, the beam emitted by the laser reaches the laser focusing head after passing through the resonator, and then reaches the surface of the workpiece. The laser focusing head is equipped with a focusing lens. If the temperature in the laser focusing head is too high, the focusing lens will crack and cannot be used. It needs to be replaced. . [0003] At present, there are mainly two methods of offline detection and online detection for the detection of laser powe...

AI Technical Summary

Problems solved by technology

Off-line detection needs to interrupt the processing process and cannot reflect the changes in laser power in the processing process in real time, so it has the disadvantages of indirect detection methods, inaccurate detection data and cannot be updated in real time.

[0004] The Chinese invention patent with the publication number CN101451886A disclosed a semiconductor laser laser power real-time online detection device on June 10, 2009. A beam splitter is placed in the optical path of the semiconductor array laser, and the laser beam output from the laser and reflected from the workpiece Two parts of the beam are separated from the light beam. According to the characteristics of the uneven distribution of the intensity of the semiconductor laser beam in space, the light intensity of the two beams is homogenized and attenuated, and then amplified and filtered to obtain the optical power of the laser and the reflected light of the workpiece. The voltage signal whose power is in a linear relationship can calculate the optical power of the laser output laser and the optical power reflected by the workpiece according to the voltage signal, and realize the simultaneous online detection of the laser output power of the high-power semiconductor array laser and the reflected optical power of the workpiece during processing, but The remote detection of laser power cannot be realized, and there is no detection of the temperature of the laser focusing head

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