Saint-gobain Glass France

Saint Gobain Isover

Saint-gobain Placo

Francois Sausset

Brice Dubost

Claire Lucas

Lydia Tlilane

A method determines an optimized cutting plan for using a guillotine to cut a batch of rectangular pieces of glass out from at least one sheet of glass. The method includes initializing including defining cutting constraints and positioning constraints for the pieces together with an optimization criterion; creating a tree comprising a root, leaves, each presenting a complete cutting plan enabling all of the pieces of the batch to be cut out, the cutting plan associated with a node of the tree being obtained by adding to the partial cutting plan associated with the parent node of the node, and in compliance with the constraints, the next piece for the frame determined in compliance with the sequence predetermined for the frame; and selecting a complete cutting plan associated with a leaf of the tree as a function of the optimization criterion.

Method and device for optimizing a glass cutting plan by a guillotine cutter

At least one acoustic parameter of an environment is obtained by emitting a sound signal emitted, receiving a sound signal received, estimating a sampling frequency shift and of a temporal shift between the emission and reception devices on the basis of impulse responses obtained on the basis of portions of the sound signal received and of corresponding portions of the sound signal emitted, obtaining a corrected sound signal received by applying to the sound signal received a sampling frequency shift correction and a temporal shift correction on the basis of the estimating, determining the impulse response of the environment on the basis of portions of the corrected sound signal received and of corresponding portions of the sound signal emitted, and obtaining acoustic parameters of the environment on the basis of the impulse response.

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Montrouge, France

Francois Sausset