公开(公告)号：US11455203B2

公开(公告)日：2022-09-27

申请号：US16333061

申请日：2017-09-13

申请人： NEC CORPORATION

发明人： Katsuhiro Ochiai

IPC分类号： G06F11/07 ,  G05B23/02

摘要： A system analysis support device includes a data acquisition part that obtains time series data (items) measured in a system that is to be analyzed, an overall abnormality degree calculation part that calculates transition of abnormality degree representing overall abnormality degree of the system that is to be analyzed, using a predictive model generated so that, with 2 or more time series data (items) as input, values representing a relationship between the 2 or more time series data (items) are outputted, and the time series data (items), and a representative index selection part that selects and presents time series data (items) indicating change similar to transition of the overall abnormality degree of the system that is to be analyzed, from among the time series data (items).

公开(公告)号：US10788817B2

公开(公告)日：2020-09-29

申请号：US15746052

申请日：2016-08-02

申请人： NEC Corporation

发明人： Takazumi Kawai ,  Katsuhiro Ochiai

IPC分类号： G05B19/418 ,  G06Q50/04 ,  G06Q10/06

摘要： Provided is a manufacturing process analysis device (30), comprising: a computation unit (31) which computes, in a process in which a manufactured object is manufactured, invariant compliance strengths for each shift time for manufacturing condition values (360) and quality values (361) which are measured in time series; a shift time specification unit (32) which derives, as a specified shift time, a shift time for which the invariant compliance strengths satisfy a baseline; and an analysis unit (33) which analyzes the state of the manufacturing process on the basis of the quality value and the manufacturing condition value for the time which is earlier by the specified shift time than the time at which the quality value is measured.

公开(公告)号：US20170046628A1

公开(公告)日：2017-02-16

申请号：US15306173

申请日：2015-05-11

申请人： NEC Corporation

发明人： Katsuhiro Ochiai

IPC分类号： G06N99/00 ,  G01V1/00 ,  E02D17/20

CPC分类号： G06N20/00 ,  E02D17/20 ,  E02D2600/10 ,  G01H1/00 ,  G01V1/00 ,  G01V1/008 ,  G01V9/00 ,  G01V9/02 ,  G08B21/10 ,  G08B25/08 ,  G08B31/00 ,  Y02A90/36

摘要： A sign of the landslide disaster is easily detected.A model learning unit (120) of an anomaly detection device (100) learns a relational expression between vibration strengths at frequencies based on a time series of frequency characteristics of a vibration strength detected during a learning period by a vibration sensor placed on a monitoring target. The anomaly detection unit (140) learns a relational expression between vibration strengths at frequencies based on a time series of frequency characteristics of a vibration strength detected during a new period by the vibration sensor. Then, the anomaly detection unit (140) determines whether or not there is an anomaly in the monitoring target based on a relational expression related to a new frequency, which is different from the relational expression learned during the learning period.

摘要翻译： 异常检测装置（100）的模型学习单元（120）基于通过放置在监视对象上的振动传感器，基于在学习期间检测到的振动强度的频率特性的时间序列，在频率上学习振动强度之间的关系表达式 。 异常检测部140基于由振动传感器在新的周期内检测到的振动强度的频率特性的时间序列，获知频率的振动强度之间的关系表达式。 然后，异常检测部（140）基于与新兴频率有关的关系表达式来判断监视对象中是否存在异常，该关系式与学习期间学习的关系式不同。

公开(公告)号：US10761076B2

公开(公告)日：2020-09-01

申请号：US16417890

申请日：2019-05-21

申请人： NEC Corporation

发明人： Ryota Mase ,  Katsuhiro Ochiai

IPC分类号： G01N33/24 ,  G08B21/20

摘要： Moisture content information in soil at a specified site, and moisture content information at a ground surface within a given range that includes the specified site, are acquired. A point where there is a risk of natural disaster within the given range is determined and highlighted, based on the moisture content information in soil at the specified site and the moisture content information at the ground surface within the given range.

公开(公告)号：US10719778B2

公开(公告)日：2020-07-21

申请号：US15306173

申请日：2015-05-11

申请人： NEC Corporation

发明人： Katsuhiro Ochiai

IPC分类号： G06N20/00 ,  E02D17/20 ,  G08B21/10 ,  G08B31/00 ,  G08B25/08 ,  G01V1/00 ,  G01V9/00 ,  G01V9/02 ,  G01H1/00

摘要： A model learning unit of an anomaly detection device learns a relational expression between vibration strengths at frequencies based on a time series of frequency characteristics of a vibration strength detected during a learning period by a vibration sensor placed on a monitoring target. The anomaly detection unit learns a relational expression between vibration strengths at frequencies based on a time series of frequency characteristics of a vibration strength detected during a new period by the vibration sensor. Then, the anomaly detection unit determines whether or not there is an anomaly in the monitoring target based on a relational expression related to a new frequency, which is different from the relational expression learned during the learning period.

公开(公告)号：US11127211B2

公开(公告)日：2021-09-21

申请号：US16089847

申请日：2017-02-20

申请人： NEC CORPORATION

发明人： Katsuhiro Ochiai

IPC分类号： G06T19/00 ,  G05B19/042 ,  G05B19/418 ,  G06T7/00

摘要： This invention is directed to a plant management system that presents a position to be measured by a sensor that performs measurement for inspection of a plant or the like when the measurement is executed, thereby preventing a measurement error. The plant management system includes a measurement position instructor that, when performing the measurement by the sensor on a work site, instructs the position to be measured by the sensor on a measurement target, and a presenter that, when the measurement is executed, performs presentation of an image representing the position to be measured by the sensor on the work site by superimposing the image on an image of the measurement target or projecting the image onto the measurement target. Here, the presenter includes a superimposition display that superimposes and displays the image representing the position to be measured by the sensor on the image of the measurement target using an augmented reality technology or a projection device that projects the image representing the position to be measured by the sensor in association with the measurement target.

公开(公告)号：US20200333315A1

公开(公告)日：2020-10-22

申请号：US16919579

申请日：2020-07-02

申请人： NEC Corporation

发明人： Ryota MASE ,  Katsuhiro Ochiai

IPC分类号： G01N33/24 ,  G08B21/20

摘要： Moisture content information in soil at a specified site is acquired. Moisture content information a ground surface within a given range that includes the specified site is acquired. An amount of runoff or storage volume of water on the ground surface or in a ground at a freely-selected site in the given range is calculated based on the moisture content information in soil and the moisture content information at the ground. A degree of risk of flood disaster at the freely-selected site within the given range is calculated based on the amount of runoff or storage volume of water on the ground surface. A point where there is the risk of flood disaster within the given range is determined and highlighted based on the degree of risk of flood disaster.

公开(公告)号：US10228994B2

公开(公告)日：2019-03-12

申请号：US14916007

申请日：2014-03-11

申请人： NEC Corporation

发明人： Shinji Kasahara ,  Katsuhiro Ochiai

IPC分类号： G06F11/00 ,  G06F11/07

摘要： An information processing system, an information processing method, and a program capable of satisfactory data analysis are provided. The information processing system includes a frequency conversion unit 205 which converts a plurality of pieces of time-series data obtained through detection carried out by a plurality of sensing units 201 into pieces of frequency data 208, respectively, a model construction unit 211 which generates a correlation model 213 using pieces of the frequency data 208 for at least two sensing units 201 from among the plurality of sensing units 201 and calculates a correlation strength 214 of the correlation model 213, and an error detection unit which determines whether an error has occurred based on the correlation strength 214.

公开(公告)号：US11237148B2

公开(公告)日：2022-02-01

申请号：US16919579

申请日：2020-07-02

申请人： NEC Corporation

发明人： Ryota Mase ,  Katsuhiro Ochiai

IPC分类号： G01N33/24 ,  G08B21/20

摘要： Moisture content information in soil at a specified site is acquired. Moisture content information a ground surface within a given range that includes the specified site is acquired. An amount of runoff or storage volume of water on the ground surface or in a ground at a freely-selected site in the given range is calculated based on the moisture content information in soil and the moisture content information at the ground. A degree of risk of flood disaster at the freely-selected site within the given range is calculated based on the amount of runoff or storage volume of water on the ground surface. A point where there is the risk of flood disaster within the given range is determined and highlighted based on the degree of risk of flood disaster.

公开(公告)号：US11150380B2

公开(公告)日：2021-10-19

申请号：US16323292

申请日：2017-08-23

申请人： NEC Corporation

发明人： Yuya Yamakawa ,  Katsuhiro Ochiai

IPC分类号： G01W1/10 ,  G16Z99/00 ,  G01W1/14 ,  G06N7/00

摘要： A rainfall amount prediction device includes: a first prediction unit creating a first prediction pattern, and calculating a first total rainfall amount that is the total rainfall amount in the first period according to the first prediction pattern; a second prediction unit determining a second total rainfall amount that is the total rainfall amount in a second period by subtracting the first total rainfall amount from the entire total rainfall amount, and creating, under the limitations of the second total rainfall amount, and a pattern creation unit creating a plurality of rainfall prediction patterns for the entirety of the prediction period by combining, on a time axis, the first prediction pattern and the plurality of second prediction patterns.