Systems and methods for likelihood-based detection of gas leaks using mobile survey equipment
US9599597B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 23, 2013 |
| Grant date | Mar 21, 2017 |
| Priority date | — |
| Expiry date | Apr 16, 2035 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01W1/02
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
In some embodiments, vehicle-based natural gas leak detection methods are used to generate 2-D spatial distributions (heat maps) of gas emission source probabilities and surveyed area locations using measured gas concentrations and associated geospatial (e.g. GPS) locations, wind direction and wind speed, and atmospheric condition data. Bayesian updates are used to incorporate the results of one or more measurement runs into computed spatial distributions. Operating in gas-emission plume space rather than raw concentration data space allows reducing the computational complexity of updating gas emission source probability heat maps. Gas pipeline location data and other external data may be used to determine the heat map data.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.