Event correlation
US5748098A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Aug 29, 1995 |
| Grant date | May 5, 1998 |
| Priority date | — |
| Expiry date | Aug 29, 2015 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04Q2213/13521
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
Simultaneous events reported to an equipment management system are compared with historical data in order to establish whether there is a relationship between the events. Historical data is used to determined the statistical probability of the events occurring independently simultaneously. If this probability is below a predetermined threshold this will suggest that the events are not independent, but are relaxed. Such relationships are alerted to an operator, for example by highlighting or grouping on a screen display, assisting the operator in identification of related events, without the need for prior knowledge of the relationships in the system. The events may be alarms generated by faults in a network. The identification of related faults at different points in the network assists identification of their common cause. The historical database may be updated by further event occurrences as they are reported to the equipment management system, thereby enlarging the database to make the results more statistically accurate. Events may be reported to the system automatically or by human agency. To allow for systematic delays in event reporting, alarms from one source may be compare…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.