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公开(公告)号：US10515249B2
公开(公告)日：2019-12-24
申请号：US16282341
申请日：2019-02-22
申请人： Keyence Corporation
发明人： Hidezumi Nagata , Taichi Tajika , Hiroomi Ohori , Taiga Nomi
摘要： [Object] To enhance accuracy at the time of setting with consideration of a cell size of a code when an exposure time is automatically set. [Means to solve the problems] An upper limit of an exposure time of an imaging part as a restriction condition for reading a code attached to a workpiece is calculated based on a moving speed of the workpiece, which is inputted by an input part, and a cell size, which is calculated by a cell size calculation part. An exposure time of the imaging part is set within the restriction condition by analyzing a plurality of images, which includes a code and is obtained by taking images multiple times by changing the exposure time of the imaging part.
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公开(公告)号：US11380087B2
公开(公告)日：2022-07-05
申请号：US16507066
申请日：2019-07-10
申请人： Keyence Corporation
发明人： Taiga Nomi
摘要： To make it possible to determine in advance the propriety of a measure by simulating a change of an objective variable due to a change of a value of a feature value. A prediction model for predicting an objective variable is generated based on feature values of a plurality of attributes included in analysis target data. An adjustment of a representative value of a feature value is received based on a user's operation input. The feature values of the plurality of attributes are changed according to adjustment amount of the representative value, and the numeric value of the objective variable is recalculated from the prediction model and displayed on a monitor.
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公开(公告)号：US11308103B2
公开(公告)日：2022-04-19
申请号：US16507063
申请日：2019-07-10
申请人： Keyence Corporation
发明人： Taiga Nomi , Yoshinori Nakano
IPC分类号： G06F16/2458 , G06N5/02
摘要： To make it possible to automatically generate an objective variable so that even those who are unskilled in data processing can freely conduct an analysis. It is recognized whether a type of an attribute value of each attribute of analysis target data is a numeric type indicating that it is a numeric value or a category type indicating that it is a category. At least one attribute that is a numeric type is set as an attribute of an aggregation target, at least one attribute that is a category type is set as an attribute of an aggregation unit, and for each category value of the attribute of the aggregation unit, a numeric value of the attribute of the aggregation target is aggregated based on a previously prepared aggregation function to generate a new objective variable candidate.
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公开(公告)号：US20180239937A1
公开(公告)日：2018-08-23
申请号：US15849737
申请日：2017-12-21
申请人： Keyence Corporation
发明人： Hidezumi Nagata , Taichi Tajika , Hiroomi Ohori , Taiga Nomi
CPC分类号： G06K7/10722 , G06K7/1408 , G06K7/1413 , G06K7/1417
摘要： [Object] To enhance a reading accuracy of a code even when a light amount, which can be received by an imaging element, varies greatly. [Means to solve the problems] A plurality of second images in response to a plurality of different conversion characteristics is generated by using the first image obtained at the time of setting of an optical information reading device. The results, in which codes included in the generated second images are respectively decoded by a decoding part, are analyzed, and one of the conversion characteristics is selected. The second image in response to the selected conversion characteristic is generated by using the first image at the time of operation of the optical information reading device.
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公开(公告)号：US10262177B2
公开(公告)日：2019-04-16
申请号：US15849742
申请日：2017-12-21
申请人： Keyence Corporation
发明人： Hidezumi Nagata , Taichi Tajika , Hiroomi Ohori , Taiga Nomi
摘要： [Object] To enhance accuracy at the time of setting with consideration of a cell size of a code when an exposure time is automatically set. [Means to solve the problems] An upper limit of an exposure time of an imaging part as a restriction condition for reading a code attached to a workpiece is calculated based on a moving speed of the workpiece, which is inputted by an input part, and a cell size, which is calculated by a cell size calculation part. An exposure time of the imaging part is set within the restriction condition by analyzing a plurality of images, which includes a code and is obtained by taking images multiple times by changing the exposure time of the imaging part.
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公开(公告)号：US20180239938A1
公开(公告)日：2018-08-23
申请号：US15849742
申请日：2017-12-21
申请人： Keyence Corporation
发明人： Hidezumi Nagata , Taichi Tajika , Hiroomi Ohori , Taiga Nomi
CPC分类号： G06K7/1417 , G06K7/10722 , G06K7/10752
摘要： [Object] To enhance accuracy at the time of setting with consideration of a cell size of a code when an exposure time is automatically set. [Means to solve the problems] An upper limit of an exposure time of an imaging part as a restriction condition for reading a code attached to a workpiece is calculated based on a moving speed of the workpiece, which is inputted by an input part, and a cell size, which is calculated by a cell size calculation part. An exposure time of the imaging part is set within the restriction condition by analyzing a plurality of images, which includes a code and is obtained by taking images multiple times by changing the exposure time of the imaging part.
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公开(公告)号：US09691009B2
公开(公告)日：2017-06-27
申请号：US14679039
申请日：2015-04-06
申请人： Keyence Corporation
发明人： Taiga Nomi , Shusuke Oki
CPC分类号： G06K9/726 , G06K9/033 , G06K9/228 , G06K2209/01
摘要： The present invention provides a portable optical reader, an optical reading method using the portable optical reader and a computer program capable of detecting a high possibility of a reading error and notifying a user of a possibility of a reading error. A character string as a reading target is imaged and a character string is recognized based on the captured image. A plurality of reading formats defining an attribute of the character string is stored, and a first reading format matched with the recognized character string among a plurality of stored reading format is searched. Among the plurality of stored reading formats, a second reading format in which a character string matched with the first reading format as a partial character string is searched. Based on the search result, a possibility of a reading error regarding the recognized character string is notified.
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公开(公告)号：US11645362B2
公开(公告)日：2023-05-09
申请号：US16507064
申请日：2019-07-10
申请人： Keyence Corporation
发明人： Taiga Nomi , Yasunobu Umehara
IPC分类号： G06F18/21 , G06F18/214 , G06F16/26
CPC分类号： G06F18/217 , G06F18/214 , G06F16/26
摘要： To make it easier to perform an in-depth analysis by presenting to a user which feature value influences and how it influences an objective variable in a case of automatically generating feature values. For each of a plurality of feature values, by determining a division point indicating a change in influence on an objective variable, each feature value is divided into a plurality of segments and an evaluation value is calculated using an influence degree of each segment on the objective variable as an index. The segments of the feature values for which the evaluation values have been calculated are displayed on a monitor.
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公开(公告)号：US11281937B2
公开(公告)日：2022-03-22
申请号：US16507058
申请日：2019-07-10
申请人： Keyence Corporation
发明人： Taiga Nomi , Yasunobu Umehara
摘要： A data analyzing device generates a diagram that shows a relationship between a first feature and an objective variable. The first feature is selected in accordance with an input of a user from among features having higher degrees of importance. The data analyzing device divides analysis target data into a plurality of clusters on the basis of values of the first feature, calculates a representative value of the objective variable of each of the clusters, extracts a second feature having a representative value of the objective variable, which is determined as having a significant difference relative to the representative value of the objective variable of the first feature, from at least one of the clusters. The data analyzing device generates a diagram that shows a relationship between the second feature and the objective variable.
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公开(公告)号：US20190188437A1
公开(公告)日：2019-06-20
申请号：US16282341
申请日：2019-02-22
申请人： Keyence Corporation
发明人： Hidezumi Nagata , Taichi Tajika , Hiroomi Ohori , Taiga Nomi
CPC分类号： G06K7/1417 , G06K7/10722 , G06K7/10752
摘要： [Object] To enhance accuracy at the time of setting with consideration of a cell size of a code when an exposure time is automatically set. [Means to solve the problems] An upper limit of an exposure time of an imaging part as a restriction condition for reading a code attached to a workpiece is calculated based on a moving speed of the workpiece, which is inputted by an input part, and a cell size, which is calculated by a cell size calculation part. An exposure time of the imaging part is set within the restriction condition by analyzing a plurality of images, which includes a code and is obtained by taking images multiple times by changing the exposure time of the imaging part.
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