Identifying and localizing equipment failures
US11558241B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 10, 2021 |
| Grant date | Jan 17, 2023 |
| Priority date | — |
| Expiry date | Sep 10, 2041 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L41/0686
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
The disclosed technology is directed towards automatically detecting failure states and the cause of the failure. For a network, the technology collects status messages from equipment and customers into batches as they occur. The technology groups and aggregates messages, then transforms the aggregations to the frequency domain. Anomalies induce detectable changes in the particle distribution of a trained particle filter, from which an anomalous spectrogram is generated. The status messages of each device are iteratively removed from the larger set of messages, resulting in reduced subsets that are each aggregated, transformed into a modified spectrogram and compared against the anomalous spectrogram to obtain a distance score. The distance score for each device is used to rank the devices with respect to being the cause of the failure.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.