Scraper conveyor chain pitch measurement based on speckle structured light

Junsheng Zhang; Honglei Wang; Jiacheng Li

doi:10.1117/12.2671210

28 April 2023 Scraper conveyor chain pitch measurement based on speckle structured light

Junsheng Zhang, Honglei Wang, Jiacheng Li

Proceedings Volume 12610, Third International Conference on Artificial Intelligence and Computer Engineering (ICAICE 2022); 1261029 (2023) https://doi.org/10.1117/12.2671210
Event: Third International Conference on Artificial Intelligence and Computer Engineering (ICAICE 2022), 2022, Wuhan, China

Abstract

A chain pitch measurement method of scraper conveyor based on speckle structured light is proposed to improve security and automation. Two speckle structured light cameras are used to collect point clouds on the chain surface from different angles, and the point clouds are transformed to a common reference coordinate system by rotating and translation matrix with calibration. The chain point cloud is preprocessed by plane model segmentation and radius filtering, the main direction of the point cloud is calculated by point cloud principal component analysis, the key points of measurement are detected by neighbors within radius search of the point cloud, and finally, the chain pitch is solved by Euclidean distance. The actual measurement error of the measurement method proposed in this paper is less than 2%, which can meet the needs of coal mining.

Citation Download Citation

Junsheng Zhang, Honglei Wang, and Jiacheng Li "Scraper conveyor chain pitch measurement based on speckle structured light", Proc. SPIE 12610, Third International Conference on Artificial Intelligence and Computer Engineering (ICAICE 2022), 1261029 (28 April 2023); https://doi.org/10.1117/12.2671210

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KEYWORDS

Point clouds

Speckle

Structured light

Deformation

Mining

Cameras

Imaging systems

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