公开(公告)号：US20220094670A1

公开(公告)日：2022-03-24

申请号：US17309876

申请日：2019-12-27

Applicant: VIACCESS

Inventor： Pérez PELAGE

IPC: H04L9/00 ,  H04L9/08 ,  H04L9/30 ,  G06F30/10

Abstract: The invention relates to a method and a system for computer-assisted maintenance of a device to be maintained, comprising a storage in a first system, which storage is implemented progressively when in use an operating system comprising the device to be maintained, of operational data associated with the said operating system. For a maintenance processing method, which is to be implemented by the second system (8) by applying a processing algorithm (38) to a set of operational data, the maintenance system uses a homomorphic or partially homomorphic cryptosystem (28) to obtain a modified maintenance processing algorithm (40) which makes it possible to obtain an item of predictive or corrective maintenance information in encrypted form, from a set of protected operational data comprising a first subset of encrypted operational data ((D1)H) by a means of a cryptosystem encryption method (28), and a second subset of plain data (D2) from the said set of operational data.

公开(公告)号：US20220121173A1

公开(公告)日：2022-04-21

申请号：US17310447

申请日：2020-02-07

Applicant: VIACCESS

Inventor： Pérez PELAGE

IPC: G05B19/4099

Abstract: The invention relates to a method and system for computer-aided manufacturing (2) of a three-dimensional part by a manufacturing device, and an associated method and system for complete or partial remanufacturing (4), using at least one predetermined manufacturing material, and implementing a set of manufacturing data. The manufacturing system (2) comprises modules (14, 18, 22, 6) configured to implement, during or at the end of the manufacturing of a three-dimensional part: a calculation of a piece of remanufacturing information associated with said three-dimensional part, and comprising or allowing access to the set of data for manufacturing said three-dimensional part, an inscription on the surface or in the body of said three-dimensional part, by a predetermined marking method, of a remanufacturing mark coding said remanufacturing information. The remanufacturing system comprises modules (32, 36, 40, 46, 48) configured to implement a reading of the remanufacturing mark, obtaining of a set of manufacturing data of the initial three-dimensional part and a complete or partial remanufacturing of a three-dimensional part mechanically identical to said initial three-dimensional part.

公开(公告)号：US20220187802A1

公开(公告)日：2022-06-16

申请号：US17310446

申请日：2019-04-02

Applicant: VIACCESS

Inventor： Alice WITTENBERG ,  Pérez PELAGE ,  Alain NOCHIMOWSKI ,  Thierry LELÉGARD ,  Dan GHITA ,  Hadrien FLAMMANG ,  Dror COHEN

IPC: G05B19/418 ,  H04L9/34 ,  G06Q50/04

Abstract: The invention concerns a method and system for manufacturing a three-dimensional part by a computer-aided manufacturing process, and an associated method and system for detecting a manufacturing process breach in a computer-aided manufacturing process of a three-dimensional part.
The three-dimensional part manufacturing comprises computing pedigree information (10) relating to the manufacturing process of the three-dimensional part, wherein the pedigree information (10) gives access to pedigree data of the manufacturing process of the three-dimensional part, the pedigree data comprising manufacturing data (8D) collected during the manufacturing process of the three-dimensional part, and inserting a mark (20) encoding the pedigree information on a surface or within a volume of the three-dimensional part, to obtain a marked three-dimensional part (24).
The detection of manufacturing process breach comprises pedigree data (42) retrieval from a marked three-dimensional part and determining whether a manufacturing breach occurred by applying classifying means to the retrieved pedigree data.