Double DSP built-in control system for visual feedback during soldering process

Abstract

The invention discloses a double DSP embedded type welding process visual feedback control system for welding seam tracking and welding quality control in welding automation, comprising a DSP image processing module, a DSP feedback control module, a power and reset module, a visual interface module, an analog video coding module and a USB control module. The DSP image processing module extracts the eigenvalues of a welding region image transmitted from the video interface module and transmits to the DSP feedback control module, the DSP feedback control module outputs corresponding signals according to the eigenvalues, and finishes close-loop control of welding seam tracking and welding quality. By this invention, welding seam tracking and welding seam shaping control can be carried out without a host computer.

Description

technical field [0001] The patent of the invention belongs to the field of welding equipment, and specifically relates to a dual-DSP embedded welding process visual feedback control system for realizing welding process automation, welding process monitoring, welding seam tracking and real-time control of welding seam formation. Background technique [0002] The visual sensor based on the industrial CCD camera is widely used in the image monitoring of the welding process, weld seam tracking and weld seam forming closed-loop control because of its large amount of information, high measurement accuracy, and no contact with the workpiece. Vision sensors are not easily affected by magnetic deflection or wire bending during use, but they need to overcome interference such as arc light, smoke, and spatter during welding. In addition, pattern recognition and real-time requirements for features such as grooves, arcs, and molten pools have put forward higher requirements for image pro...

AI Technical Summary

Problems solved by technology

[0009] To sum up, the existing welding process visual sensing system has the following deficiencies: (1) Generally, a desktop industrial control computer is used for image acquisition and processing, with complex architecture and poor accessibility; (2) Single DSP computing architecture, The calculation speed is slow, and it cannot meet the requirements of high-quality welding process feedback control in terms of accuracy and speed; (3) The degree of integration is small, and the function is single, which fails to realize multiple functions such as welding process monitoring, weld seam tracking and real-time control of weld seam formation. integrated

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