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公开(公告)号：US11221608B2
公开(公告)日：2022-01-11
申请号：US16493370
申请日：2018-03-16
发明人： Satoru Goto , Junichi Takami , Yasunobu Shirata , Tomoki Umezawa , Yohsuke Muramoto , Takafumi Horio , Yu Teshima
IPC分类号： G05B19/4065 , G06N20/00 , G06N5/04
摘要： A device includes: a first acquiring unit to acquire context information corresponding to running operation among pieces of context information; a second acquiring unit to acquire detection information output from a detecting unit detecting a physical quantity of a target device; an extracting unit to extract, from the detection information, feature information indicating a feature of the detection information in an interval including a specific operation interval of the target device; a selecting unit to select reference feature information used as reference based on the feature information, and sequentially select pieces of target feature information; a calculating unit to calculate a likelihood of a process interval based on a comparison between the reference feature information and each piece of target feature information; a determining unit to determine whether the target feature information corresponding to the likelihood is included in the process interval based on the likelihood; and an estimating unit to estimate the process interval based on a determination result.
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公开(公告)号：US10594874B2
公开(公告)日：2020-03-17
申请号：US15401586
申请日：2017-01-09
申请人： RICOH COMPANY, LTD.
发明人： Yohsuke Muramoto
摘要： A malfunction determining apparatus for determining a malfunction of a target apparatus includes a receiver that receives, from a target apparatus, a plurality of items of physical data having frequency bands that are different from each other and circuitry that analyzes the received physical data to identify, for each of the operating modes, at least one of the physical data items having a specific feature from among the plurality of items of physical data that are received from the target apparatus, stores in a memory, for each of the operating modes, information indicating at least one sensor of the multiple sensors that has output the at least one of the physical data item that is identified, and determines abnormality of the target apparatus operating in a specific operating mode, using only the physical data output from the at least one sensor stored in the memory for the specific operating mode.
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