-
公开(公告)号：US20220057789A1
公开(公告)日：2022-02-24
申请号：US17413417
申请日：2020-01-30
申请人： HITACHI, LTD.
IPC分类号： G05B19/418
摘要： A manufacturing monitoring assistance device includes: a model creation unit creating a computation model when a product as a sample is normal, based on a three-dimensional form acquired from the product; a simulation unit creating a corrective computation model when the product is abnormal, by adding a sample of an abnormal portion in the product to the created computation model, and performing a simulation on each of the computation model and the corrective computation model; and a monitoring method determination unit determining a method for monitoring a manufacturing process for the product, based on an abnormality index being a difference between an output from a sensor as a result of the simulation performed on the computation model and an output from a sensor as a result of the simulation performed on the corrective computation model, and causing an output device to display the determined method and the abnormality index.
-
公开(公告)号：US20210063255A1
公开(公告)日：2021-03-04
申请号：US17008838
申请日：2020-09-01
申请人： Hitachi, Ltd.
IPC分类号： G01L1/12 , G01R33/032 , G01L1/22
摘要： A stress distribution measurement device includes: a first magnetostrictive sensor and a second magnetostrictive sensor each including an excitation coil that excites AC magnetism in a measurement target using alternating current, and a detection coil to which alternating current is induced due to the AC magnetism flowing in the measurement target; an excitation circuit that applies a first excitation voltage to the excitation coil of the first magnetostrictive sensor and applies a second excitation voltage to the excitation coil of the second magnetostrictive sensor, the second excitation voltage having a phase or a waveform different from the first excitation voltage; and a detection circuit that includes a first detector that performs synchronous detection of current flowing in the detection coil of the first magnetostrictive sensor based on the first excitation voltage and a second detector that performs synchronous detection of current flowing in the detection coil of the second magnetostrictive sensor based on the second excitation voltage.
-
公开(公告)号：US20180113077A1
公开(公告)日：2018-04-26
申请号：US15786770
申请日：2017-10-18
申请人： Hitachi, Ltd.
摘要： There are provided a welding monitoring system which can multidimensionally monitor a welding portion with high accuracy and a monitoring method thereof, by using a relatively simple configuration.There is provided a welding monitoring system which monitors a subject, including: a mechanical portion; and an imaging portion, in which the mechanical portion includes a transport arm which transports the subject, a subject holding portion which holds the subject, and an energizing device which causes welding with respect to the subject to be performed, and in which the imaging portion includes imaging means for obtaining imaging data of the subject, a data recording portion which records the imaging data, an analyzing portion which extracts predetermined characteristics from the imaging data, a comparison determination portion which compares the extracted characteristics and normal characteristics to each other to determine the presence or absence of abnormality, and a determination result output portion which outputs a determination result by the comparison determination portion.
-
公开(公告)号：US20230367296A1
公开(公告)日：2023-11-16
申请号：US18245557
申请日：2020-11-02
申请人： Hitachi, Ltd.
IPC分类号： G05B19/418
CPC分类号： G05B19/4184 , G05B19/41885 , G05B2219/31444 , G05B2219/32019
摘要： This industrial system is characterized by being provided with: a storage unit that stores design data used when constructing an industrial line; a simulation execution unit that executes a simulation of movement of the industrial line, based on the design data; and a detection unit that compares a result of the simulation with the movement of the industrial line during operation and detects an abnormality in components of the industrial line. With such a configuration and movement, the present invention can be utilized for line operation support and high-resolution abnormality detection.
-
公开(公告)号：US20220004956A1
公开(公告)日：2022-01-06
申请号：US17191994
申请日：2021-03-04
摘要： Provided is a manufacture and sales strategy planning method comprising a step of determining, based on information related to a sales plan of a plurality of products and a production capacity of a production facility to produce each product, whether there is any spare capacity in the production capacity of the production facility in relation to the sales plan for each of the products, a step of applying one among a plurality of profit improvement strategies, according to an availability of the spare capacity, to each product determined in this step, and calculating an improvement effect of each product, a step of selecting, based on each calculation result obtained in this step, a specific product among the plurality of products in which the improvement effect has exceeded a set value with regard to each of the plurality of profit improvement strategies, a step of extracting, for each profit improvement strategy, an item which satisfies a restricting condition of sale or production of the specific product selected in this step and which configures the specific product, and a step of planning a manufacture and sales strategy related to the items extracted in this step, and selecting one or more specific item strategies based on the improvement effect, wherein a supply and demand plan is simulated by reflecting the improvement effect of the selected strategy.
-
公开(公告)号：US20210063316A1
公开(公告)日：2021-03-04
申请号：US16644155
申请日：2018-08-30
发明人： Hisashi ENDOU , Masanori MIYAGI , Hiroshi YOSHIKAWA , Toshihiro YAMADA , Nobuhiro KAKENO , Yasunori HAMA
IPC分类号： G01N21/892 , G01N25/72 , B23K31/12
摘要： The disclosure provides a joining process line monitoring system capable of preventing joining quality deterioration and operation delay. A joining process line monitoring system 100 includes a joining phenomenon data acquisition part 111 configured to acquire a joining phenomenon of a joining subject member as phenomenon data; an operation state data acquisition part 112 configured to acquire a joining operation state of the joining subject member as operation state data; an evaluation data calculation unit 120 configured to perform time synchronization of the acquired phenomenon data and the acquired operation state data, and associate the acquired phenomenon data and the acquired operation state data with each joining operation location, so as to calculate evaluation data; a difference data extraction unit 130 configured to extract a difference between the evaluation data and reference data set in advance as difference data; an abnormal location determination unit 140 that determines that a portion having a large difference from the joining phenomenon is an abnormal location; and a presentation unit 150 configured to present the abnormal location of a joining portion of the joining subject member based on the difference data.
-
公开(公告)号：US20180321162A1
公开(公告)日：2018-11-08
申请号：US16032371
申请日：2018-07-11
申请人： Hitachi, Ltd.
CPC分类号： G01N21/8806 , B23K31/125 , B23K37/04 , G01N2201/1053
摘要： There are provided a welding monitoring system which can multidimensionally monitor a welding portion with high accuracy and a monitoring method thereof, by using a relatively simple configuration.There is provided a welding monitoring system which monitors a subject, including: a mechanical portion; and an imaging portion, in which the mechanical portion includes a transport arm which transports the subject, a subject holding portion which holds the subject, and an energizing device which causes welding with respect to the subject to be performed, and in which the imaging portion includes imaging means for obtaining imaging data of the subject, a data recording portion which records the imaging data, an analyzing portion which extracts predetermined characteristics from the imaging data, a comparison determination portion which compares the extracted characteristics and normal characteristics to each other to determine the presence or absence of abnormality, and a determination result output portion which outputs a determination result by the comparison determination portion.
-
-
-
-
-
-
搜索结果
7 条记录 (耗时 0.018 秒)
