| 摘要 |
<p>In order to efficiently access a plurality of pieces of time-series data to be analyzed: a data storing unit, when storing data, selects time-series data related to the predicted vibration frequency and time-series data related to the actual vibration frequency as a combination of time-series data which are to be analyzed and are generated in the same cycle, from amongtime-series data from a time-series data source (10), aggregates the selected combinations of the time-series data per one hour unit, and stores the aggregated plurality of combinations of the time-series data in an aggregated data table in association with an attribute (the vibration frequency); and a data analysis unit, when analyzing data, accesses the aggregated data table on the basis of the attribute so as to extract the combination of the time-series data related to the predicted vibration frequency and the time-series data related to the actual vibration frequency as time-series data used for analysis, and acquires the divergence vibration frequency, which is the difference between the predicted vibration frequency and the actual vibration frequency, on the basis of the extracted time-series data.</p> |
