US 12,352,555 B2
Three-dimensional optical measuring mobile apparatus for ropes with rope attachment device
Cristiano Bonetti, Doncaster (GB); Bart Vanlandeghem, Kruisem (BE); and Christopher John Newton, Banbury (GB)
Assigned to Bridon International Ltd., Doncaster (GB)
Appl. No. 17/759,053
Filed by BRIDON INTERNATIONAL LTD., Doncaster (GB)
PCT Filed Jan. 21, 2021, PCT No. PCT/IB2021/050445
§ 371(c)(1), (2) Date Jul. 19, 2022,
PCT Pub. No. WO2021/148971, PCT Pub. Date Jul. 29, 2021.
Claims priority of application No. 102020000001057 (IT), filed on Jan. 21, 2020.
Prior Publication US 2023/0040446 A1, Feb. 9, 2023
Int. Cl. G01B 11/10 (2006.01); G01B 11/24 (2006.01); G01B 21/04 (2006.01); G01N 21/952 (2006.01)
CPC G01B 11/105 (2013.01) [G01B 11/2408 (2013.01); G01B 21/042 (2013.01); G01N 21/952 (2013.01)] 18 Claims
OG exemplary drawing
 
1. A calibrated three-dimensional optical measuring apparatus for three-dimensional measurement of geometric parameters of a rope, comprising:
a frame defining and arranged around a rope receiving cavity;
a plurality of image acquisition devices configured to acquire a multiplicity of digital images of at least one region of an outer surface of the rope, said image acquisition devices being fixed to the frame and arranged around the rope when the calibrated three-dimensional optical measuring apparatus receives the rope in the rope receiving cavity;
an attachment device configured to constrain the calibrated three-dimensional optical measuring apparatus to the rope in a relatively translatable manner with respect to the rope; and
an electronic digital image processing device, configured to process the multiplicity of digital images and to obtain a three-dimensional photogrammetric reconstruction of points of the digital images of the rope acquired by the image acquisition devices
wherein the frame comprises a casing defining the rope receiving cavity and arranged around the rope receiving cavity and a support structure, joined to the casing, the image acquisition devices being fixed on said support structure, and
wherein the support structure has an open annular shape, and the casing has a box-like shape, said casing being arranged around an interior or an exterior of the support structure.