Building system with adaptive fault detection
US11243523B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 23, 2019 |
| Grant date | Feb 8, 2022 |
| Priority date | — |
| Expiry date | Jun 17, 2040 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG05B2219/31356
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
A building system for detecting faults in an operation of building equipment. The building system comprising one or more memory devices configured to store instructions thereon that cause one or more processors to perform a cumulative sum (CUSUM) analysis on actual building data and corresponding predicted building data to obtain cumulative sum values for a plurality of times within a first time period; determine a first time at which a first cumulative sum value is at a first maximum; identify a second cumulative sum value at a second maximum at a second time occurring after the first time; compare the identified second cumulative sum value to a threshold; and based on determining that the identified second cumulative sum value does not exceed the threshold, determine that a first fault ended at the first time.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.