State monitoring system and state monitoring method
US11465299B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 31, 2018 |
| Grant date | Oct 11, 2022 |
| Priority date | — |
| Expiry date | Mar 8, 2039 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG05B2219/39413
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A state monitoring system for monitoring a state of a robot configured to perform work on a workpiece executes: a step of obtaining state data from a sensor and deriving a deterioration index parameter based on the obtained state data; a step of determining whether or not the deterioration index parameter is greater than a first threshold that is preset to a level lower than a level at which corrective maintenance is required; a step of further determining whether or not a frequency of having determined that the deterioration index parameter is greater than the first threshold is greater than a preset frequency threshold; and a step of suppressing an operation of the robot without stopping the robot if it is determined that the frequency is greater than the frequency threshold.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.