Data collection system, abnormality detection method, and gateway device
US11067973B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 30, 2016 |
| Grant date | Jul 20, 2021 |
| Priority date | — |
| Expiry date | Jun 28, 2037 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06N5/00
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
A data collection system pertaining to one embodiment of the present invention collects time-series data which is output from sensors installed on equipment which is a monitored object and carries out detecting an abnormality of the equipment. The data collection system stores plural fault models as data for comparison with time-series data and, in a learning process, determines a range to examine within time-series data by comparing the time-series data with each one of the fault models. An abnormality detection process includes extracting a partial frequency spectrum to examine from the frequency spectrum of time-series data, using information on the range to examine within the time-series data determined through the learning process, and carrying out detecting an abnormality of the equipment using the extracted frequency spectrum.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.