Detection of condition changes in an industrial robot system
US8190294B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 27, 2008 |
| Grant date | May 29, 2012 |
| Priority date | — |
| Expiry date | Mar 29, 2031 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T74/20329
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
A method and an apparatus for detecting condition changes in a robot system. The method includes logging a work cycle representative signal at a first and a second occasion, logging, synchronously with the logging of the work cycle representative signal, a reference signal associated with work cycles at the first and second occasions, selecting the reference signal from signals having the following characteristics: a signal influenced by the path performed by the robot, a signal calculated by the robot system, and a signal that is identical at both the occasions if a manipulator of the robot performs a movement along exactly the same path at the first and second occasions, synchronizing the representative signals utilizing the logged reference signals, and comparing the synchronized signals to determine if any condition changes have occurred between the first and second occasions.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.