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公开(公告)号:US11946470B2
公开(公告)日:2024-04-02
申请号:US16467472
申请日:2018-03-13
申请人: EBARA CORPORATION
发明人: Keiji Maishigi , Tetsuro Sugiura , Katsuaki Usui , Masahiro Hatakeyama , Chikako Honma , Toru Osuga , Koichi Iwasaki , Jie Yuan Lin
CPC分类号: F04C28/28 , F04D27/001 , G06F9/542 , G06F17/18
摘要: An information processing apparatus detecting presence or absence of abnormality of a vacuum pump derived from a product produced within a target vacuum pump, including:
a determination unit configured to determine a normal variation range or a normal time variation behavior of a target state quantity which is a state quantity varying depending on a load of gas flowing into the vacuum pump, based on at least one of past target state quantities of the target vacuum pump or another vacuum pump; and
a comparison unit configured to compare a current target state quantity of the target vacuum pump with the normal variation range or the normal time variation behavior and output the comparison result.