Year: 2026
Type: conference-paper
Abstract: Laser demolition equipment can be applied in disaster rescue scenarios such as earthquakes and fires, achieving long-distance non-contact demolition in high-risk and complex environments, thereby reducing the risk of rescue personnel being directly exposed to dangerous areas. The control accuracy of the laser beam’s focal length directly determines the system’s operational performance. In response to the problem of laser focal length drift caused by environmental disturbances and the low precision and slow response of traditional manual adjustments, this paper designs an automatic adjustment system for the laser beam’s focal length based on the PID control algorithm and gives a detailed implementation of the image processing algorithm for spot detection to improve reproducibility. Simulation verification is carried out under various disturbances and a wide range of parameter variations to fully test system robustness. The simulation results show that the automatic control system can quickly and stably complete the automatic adjustment of the laser focal length, featuring fast response, small overshoot, and low steady-state error. The system has strong anti-interference ability and good robustness to parameter variations, which provides a theoretical basis and design reference for the actual control and hardware development of the laser system’s focal length.
Authors: Shichao Kuai, Wei Zheng
Institution: Shenyang Fire Research Institute
Language: English
Subfield: Electrical and Electronic Engineering
Field: Engineering
Domain: Physical Sciences
Open Access status: diamond
OpenAlex ID: W7166884875