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Proportional Integral (PI) controllers are a fundamental component in modern control systems, widely used to enhance performance and mitigate steady-state errors. They are particularly effective in applications such as automatic brightness adjustment on smartphones, where they excel at mitigating steady-state errors for step-function inputs. Unlike PD controllers, which require time-varying errors to function optimally, PI controllers leverage their integral component to address residual...
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An embedded laser marking controller based on ARM and FPGA processors.

Wang Dongyun1, Ye Xinpiao1

  • 1The Engineering School, Zhejiang Normal University, Jin Hua, Zhejiang 321005, China.

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This study introduces a portable embedded laser marking controller, overcoming the limitations of large, PC-based systems. The new controller enables precise laser marking in diverse environments.

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Area of Science:

  • Laser technology
  • Embedded systems engineering
  • Information processing

Background:

  • Traditional laser marking machines are bulky, PC-dependent, and limited to controlled environments.
  • Existing systems lack portability and are unsuitable for outdoor or harsh conditions.
  • There is a need for compact, robust laser marking solutions.

Purpose of the Study:

  • To develop a portable embedded laser marking controller.
  • To overcome the size and environmental limitations of current laser marking machines.
  • To enable precise laser marking in challenging settings.

Main Methods:

  • Designed an embedded controller utilizing ARM and FPGA processors.
  • Implemented hardware and software based on laser galvanometer scanning principles.
  • Integrated synchronous control of galvanometers for marking operations.

Main Results:

  • The developed embedded controller demonstrated synchronous control of galvanometers.
  • Precise laser marking was achieved using the new controller.
  • The system offers a compact and portable alternative to PC-based machines.

Conclusions:

  • The proposed embedded laser marking controller is effective and overcomes previous limitations.
  • This innovation facilitates precise laser marking in portable and harsh-environment applications.
  • The ARM and FPGA-based design provides a robust solution for advanced laser information processing.