US 12,404,684 B2
Method for installation of a ceiling system
Frederic Achard, Saint-Ouen (FR); Christopher Coat, Ecos (FR); and Pierre Chigot, Helsingborg (SE)
Assigned to SAINT-GOBAIN ECOPHON AB, Hyllinge (SE)
Appl. No. 17/907,164
Filed by SAINT-GOBAIN ECOPHON AB, Hyllinge (SE)
PCT Filed Mar. 30, 2021, PCT No. PCT/EP2021/058336
§ 371(c)(1), (2) Date Sep. 23, 2022,
PCT Pub. No. WO2021/198280, PCT Pub. Date Oct. 7, 2021.
Claims priority of application No. 20167570 (EP), filed on Apr. 1, 2020.
Prior Publication US 2023/0106808 A1, Apr. 6, 2023
Int. Cl. E04F 21/18 (2006.01); E04B 9/06 (2006.01); G01C 15/00 (2006.01); G06F 30/13 (2020.01)
CPC E04F 21/1883 (2013.01) [E04B 9/06 (2013.01); G01C 15/006 (2013.01); G06F 30/13 (2020.01)] 18 Claims
OG exemplary drawing
 
1. A method for installation of a ceiling system attached to a structural ceiling surface, the method comprising:
illuminating, in sequence and by a projector, different subsets of a set of optical sensors separately arranged in a known distribution pattern on the structural ceiling surface, wherein each optical sensor of the set of optical sensors being arranged to output a temporal signal indicative of a level of illumination,
determining an image plane relative to the projector based on the known distribution pattern of the set of optical sensors and the outputted temporal signals of each of the optical sensors, and
displaying, by the projector, an image indicative of installation locations of the ceiling system at the image plane.