Water-leak state estimation system, method, and recording medium
US10228301B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 10, 2016 |
| Grant date | Mar 12, 2019 |
| Priority date | — |
| Expiry date | Mar 10, 2036 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01M3/28
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
This invention provides a water-leakage state estimation system configured to estimate a state of a water leakage in a specific area of a water distribution network. A learning unit is configured to: receive labeled data, which is labeled so as to separate past flow rate data into abnormal values and normal values, and past environment state condition data; build a prediction model for predicting the normal values in the labeled data through learning; and determine a score parameter defining a length of a period involving data to be verified through learning as well. A water-leakage estimation unit is configured to: compare predicted flow rate data obtained by supplying current environment condition data into the prediction model and current flow rate data to produce error values; and calculate an average value of the error values in the period of a window width defined by the score parameter to estimate a water-leakage score representing a state of the water-leakage in the specific area.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.