| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a practicable standard time-series data calculation method, an abnormality detection method, a standard time-series data calculation device and an abnormality detection device. <P>SOLUTION: The method comprises a data acquisition step of acquiring a plurality of time-series data; a warping path calculation step of determining a warping path by calculating, in a DTW notation in which one of the acquired time-series data is disposed on one axis, and the other on the other axis, a distance between data on the one axis and data on the other axis corresponding to each frame in each frame defined on a sampling time base of the time-series data on the one axis and the other axis, and selecting a frame based on the distance; and a standard time-series data calculation step of calculating standard time-series data composed of a time-series group of average values in each frame on the warping path by determining average value of data on the one axis and data on the other axis corresponding to each frame on the warping path. <P>COPYRIGHT: (C)2009,JPO&INPIT</p> |
