The thesis addresses the issue of remote visual monitoring of the welding process, which arises in the case of automated welding of large structures with a high number of long and thick weld seams. In manual welding, the welder would be exposed to the harmful effects of the welding process for prolonged periods. Visual monitoring includes a camera for observing the molten pool and its surroundings, viewing the image from a remote and safe location, and manually correcting the welding path and adjusting welding parameters. The development of an optical system is presented, enabling simultaneous observation of the extremely bright arc and molten pool, as well as the significantly darker weld surroundings, using a single camera. The optical system splits the camera's view into two separately darkened optical paths, which are later combined into a single image. Software for image processing and composition has been developed. The system's functionality is validated through examples of robotic welding.
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