Detecting small leaks in pipeline network
US9395262B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 21, 2015 |
| Grant date | Jul 19, 2016 |
| Priority date | — |
| Expiry date | Dec 21, 2035 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01M3/2807
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Technical solutions are described for detecting leaks in a pipeline network that are not detectable by a SCADA system over an extended period of time. An example method includes identifying a subsystem in the pipeline network that includes a first station and accessing historical temporal sensor measurements of the stations in the subsystem. The method also includes selecting a subset of temporal sensor measurements corresponding to timestamps without leak events and determining a benchmark value for the sensor measurements for the first station based on the subset. The method also includes detecting a leak computing a difference between a sensor measurement and the benchmark value, adding the difference to a cumulative sum of differences computed over a predetermined duration of time, and triggering a leak detection indication if the cumulative sum of differences being larger than a first predetermined threshold or smaller than a second predetermined threshold.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.