Research on calculation of heliostat spot center point based on openCV

Yuan Gao; Erlin Liu

doi:10.1117/12.2690247

17 August 2023 Research on calculation of heliostat spot center point based on openCV

Yuan Gao, Erlin Liu

Proceedings Volume 12757, 3rd International Conference on Laser, Optics, and Optoelectronic Technology (LOPET 2023); 127571I (2023) https://doi.org/10.1117/12.2690247
Event: 3rd International Conference on Laser, Optics and Optoelectronic Technology (LOPET 2023), 2023, Kunming, China

Abstract

In a solar thermal power generation system, image processing of the reflected light spot of a heliostat is a very important part of the system, which greatly affects the thermal conversion efficiency of the heliostat, and the calculation of the center point of the reflected light spot is a crucial part. To ensure the accuracy and efficiency of center positioning in the calculation of heliostat reflected light spot center points, this study suggests a technique that combines the Steger method and the grayscale center of gravity method. Through building a test site, collecting light spot data, and conducting experimental verification, the results show that under strong light conditions, the approach suggested in this article is more accurate in determining the center point than the established gray center of gravity method. and the calculation speed is also faster, providing a reference for subsequent research on the calculation of the center point of the heliostat reflection light spot.

Citation Download Citation

Yuan Gao and Erlin Liu "Research on calculation of heliostat spot center point based on openCV", Proc. SPIE 12757, 3rd International Conference on Laser, Optics, and Optoelectronic Technology (LOPET 2023), 127571I (17 August 2023); https://doi.org/10.1117/12.2690247

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KEYWORDS

Image processing

Reflection

Image filtering

Tunable filters

Digital filtering

Image segmentation

Mathematical modeling

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