Abstract: A product design and process design device includes: a storage unit that stores design specification information containing the tolerance of a dimensional variation at any site of an assembly product, part dimension error information, assembly facility error information, assembly tolerance information, the part dimension error information, and the assembly facility error information, part manufacturing cost information, and facility investment cost information with respect to the assembly facility error information; a tolerance distribution processing unit that uses the assembly tolerance information to generate proposed tolerance distributions that differ in distributional combination with respect to each error, and calculates part manufacturing costs and facility investment costs; a facility planning processing unit that determines a proposed tolerance distribution, with, as an evaluation index, total production costs respectively including the sums of the part manufacturing costs and the facility investmen
Type:
Grant
Filed:
November 8, 2018
Date of Patent:
September 1, 2020
Assignees:
HITACHI, LTD., Computer and Automation Research Institute, Hungarian Academy of Sciences
Inventors:
Daisuke Tsutsumi, Yumiko Ueno, Youichi Nonaka, Takahiro Nakano, József Váncza, Gábor Erdós, Dávid Gyulai, András Kovács, Bence Tipary
Abstract: In order to automatically determine a structural member that is included in a structure and has flat surfaces, an input unit is configured to input three-dimensional point group data of the structure, a flat surface extraction unit is configured to extract the flat surfaces of the structure based on the three-dimensional point group data, a grouping unit is configured to group the flat surfaces into flat surface groups based on an angle of each of the flat surfaces with respect to a reference direction and a distance between the flat surfaces, a connection relationship extraction unit is configured to extract a connection relationship between the grouped flat surface groups, and a determination unit is configured to determine the structural member that the structure is constructed from based on the extracted connection relationship.
Type:
Grant
Filed:
June 15, 2016
Date of Patent:
October 30, 2018
Assignees:
HITACHI, LTD., COMPUTER AND AUTOMATION RESEARCH INSTITUTE, HUNGARIAN ACADEMY OF SCIENCES
Abstract: In order to automatically determine a structural member that is included in a structure and has flat surfaces, an input unit is configured to input three-dimensional point group data of the structure, a flat surface extraction unit is configured to extract the flat surfaces of the structure based on the three-dimensional point group data, a grouping unit is configured to group the flat surfaces into flat surface groups based on an angle of each of the flat surfaces with respect to a reference direction and a distance between the flat surfaces, a connection relationship extraction unit is configured to extract a connection relationship between the grouped flat surface groups, and a determination unit is configured to determine the structural member that the structure is constructed from based on the extracted connection relationship.
Type:
Application
Filed:
June 15, 2016
Publication date:
December 22, 2016
Applicants:
HITACHI, LTD., COMPUTER AND AUTOMATION RESEARCH INSTITUTE, HUNGARIAN ACADEMY OF SCIENCES
Abstract: A control unit (120) of a production index information generating device (100) groups, based on log information of a production device, processing targets to generate groups for which end time of processing falls within a predetermined interval, classifies the processing targets contained in the groups into classes based on a number of the processing targets contained in each of the groups, generates cycle time information for each of the classes, which specifies cycle time of each of the processing targets contained in corresponding one of the classes, and determines a production capability of the production device. Accordingly, an index specifying a capability of the production device may be obtained with ease.
Type:
Grant
Filed:
July 9, 2010
Date of Patent:
July 1, 2014
Assignees:
Hitachi, Ltd., Computer and Automation Research Institute, Hungarian Academy of Sciences
Inventors:
Lengyel Attila, Yoichi Nonaka, Kadar Botond, Monostori Laszlo