公开(公告)号：US20130148817A1

公开(公告)日：2013-06-13

申请号：US13708048

申请日：2012-12-07

申请人： TOKYO ELECTRON LIMITED

发明人： Tsuyoshi MORIYA ,  Nobutoshi TERASAWA ,  Yuki KATAOKA ,  Masahiro YATABE ,  Shirou ARAKI

IPC分类号： H04R29/00

CPC分类号： H04R29/00

摘要： An abnormality detection apparatus for a periodic driving system includes a detection unit; a data obtaining unit for time series data from the detected sound; a determinism derivation unit configured to derive a plurality of values representing determinism providing an indicator of whether the time series data is deterministic or stochastic or a plurality of intermediate variations in a calculation process of the values representing determinism at a predetermined interval from the time series data; a probability distribution calculation unit. The abnormality detection apparatus further includes a determination unit configured to determine existence or non-existence of abnormality in the periodic driving system based on the probability distribution of the values representing determinism or the intermediate variations.

摘要翻译： 一种用于周期性驱动系统的异常检测装置，包括检测单元; 数据获取单元，用于根据检测到的声音的时间序列数据; 确定性推导单元，被配置为导出表示确定性的多个值，所述确定性提供时间序列数据是确定性还是随机性的指示符，或者表示从时间序列数据以预定间隔表示确定性的值的计算处理中的多个中间变化 ; 概率分布计算单元。 异常检测装置还包括：判定部，其基于代表确定性或中间变化的值的概率分布，来确定周期性驱动系统中的异常的存在或不存在。