Method and system for condition monitoring of a cyclically moving machine component
US11953878B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Nov 19, 2019 |
| Grant date | Apr 9, 2024 |
| Priority date | — |
| Expiry date | Dec 6, 2040 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG05B2219/37228
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
A method (1000) for condition monitoring is disclosed, comprising registering (1010) values (v1) of movement characteristics measured for cycles of motion of a cyclically moving machine, associating (1050) the occurrence of values in a frequency distribution (Fv1) of the values with respective defined indexes (a, b, c, . . . ) based on intervals, generating (1060) a word string (S) of the defined indexes corresponding to the occurrence of the values, segmenting (1070) said word string (S) into a sub-set of words (s1, s2, . . . , si), determining (1080) a frequency of the occurrence of the segmented words in said word string as a first reference term frequency (TF1), associated with a first machine status (M1), for subsequently registered set of values of movement characteristics, determining (1100) a subsequent term frequency (TFn), comparing (1110) the subsequent term frequency (TFn) with the first reference term frequency to determine a correlation with the first machine status.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.