Diagnostic apparatus, diagnostic method, and diagnostic program
US11131988B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 2, 2016 |
| Grant date | Sep 28, 2021 |
| Priority date | — |
| Expiry date | Sep 26, 2037 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG05B2219/49105
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
A diagnostic apparatus determines, at a reference time, whether a device is normal or abnormal, and in which operation state the device is at the time. A reference data creation unit repeats a process of storing sensor values acquired from the device while changing the operation state at the reference time in association with each of the determined operation states until there is no non-corresponding operation state with which the acquired sensor value is not yet associated. At a diagnosis time at which it is not known whether the device is normal or abnormal, an operation state and a sensor value of the device at the time is acquired. The stored sensor value associated with the acquired operation state is read to compare the sensor value acquired at the diagnosis time with the read sensor value to display a result of determination on whether the device is normal or abnormal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.