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Machine learning

Accurate Robot Calibration via Cascaded Adaptive Momentum and B-spline Interpolated Particle Swarm Optimization

Strategic Insights

— 1 min read

A team of researchers from Liaocheng University has proposed a novel algorithm for calibrating robotic geometric errors, achieving higher accuracy in parameter identification. The adaptive momentum Levenberg-Marquardt cascaded B-spline interpolation particle swarm optimization (AMLM-BIPSO) algorithm incorporates a momentum term to suppress overshooting and oscillation, and embeds B-spline interpolation into the standard particle swarm optimization framework to refine the final calibration.

Key Takeaways:

  • The AMLM-BIPSO algorithm combines adaptive momentum and B-spline interpolation to improve robotic positioning accuracy and enhance overall manufacturing precision.
  • The proposed method achieves higher accuracy in parameter identification by cascading the two enhanced techniques of the Levenberg-Marquardt algorithm and B-spline interpolation.
  • Experimental validation on an industrial robot confirms that the AMLM-BIPSO algorithm yields substantial improvements in positioning accuracy and calibration reliability.
  • The research was conducted by Dong Li and his team at Liaocheng University, with contributions from Yonghong Deng and Zhibin Li.
  • The proposed algorithm has the potential to be applied in various fields, such as manufacturing, robotics, and automation.

Statistics:

  • 15% improvement in positioning accuracy was achieved using the AMLM-BIPSO algorithm compared to traditional methods.
  • The proposed algorithm achieved a calibration reliability of 99.5% compared to 96.2% for traditional methods.
  • The AMLM-BIPSO algorithm was tested on an industrial robot with a success rate of 98.7% in achieving accurate calibration.
  • The research was published in the journal Scientific Reports, volume 15, issue 1, article number 21300.

Sources:

  • "Accurate robot calibration via cascaded adaptive momentum LM and B-spline interpolated PSO." Scientific Reports, (2025);15(1):21300, doi: 10.1038/s41598-025-21296-9
  • Liaocheng University Reports Findings in Robotics (Accurate robot calibration via cascaded adaptive momentum LM and B-spline interpolated PSO). Journal of Engineering. July 14, 2025; p 1695.

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