Su-qin BAI, Jin-long SHI, Qiang QIAN, et al. 3D scanning and reconstruction of large objects based on PLC[J]. Optics and precision engineering, 2017, 25(4): 1044-1050.
DOI:
Su-qin BAI, Jin-long SHI, Qiang QIAN, et al. 3D scanning and reconstruction of large objects based on PLC[J]. Optics and precision engineering, 2017, 25(4): 1044-1050. DOI: 10.3788/OPE.20172504.1044.
3D scanning and reconstruction of large objects based on PLC
An innovative and practical 3D reconstruction system was proposed to obtain 3D data of large objects
and the system composition
theory and method were researched. The system is composed by an infrared-based 3D scanner and two guide rails and a high-accuracy motion control system based on Programmable Logic Controller (PLC) module. First
the 3D scanner installed in the guide rail was controlled by the motion control system to move at a constant speed; then
the 3D scanner was used to project infrared ray towards the object and reconstruct the infrared segment projected; finally
based on constant motion speed of the 3D scanner
the system was used to merge the local reconstruction data
thus obtaining complete 3D reconstruction data of the large object. Experiment result indicates that compared with the method based on laser ranging
measuring speed achieved by using this proposed method is improved by approximately 7 times
with a measurement accuracy improved by about 2.5 times. The proposed method can basically satisfy the requirements
such as high reliability
high accuracy and high speed
for auto 3D reconstruction of large objects in industrial production.
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references
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