Motion controller with remote linking
US5689161A · kind A · utility
12Cited by
8References
5Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 9, 1996 |
| Grant date | Nov 18, 1997 |
| Priority date | — |
| Expiry date | Dec 9, 2016 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P90/02
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
Multiple motion controllers for controlling servo motors are connected by a digital communications link so that controlled axes of the motion controllers may be slaved together regardless of their physical proximity. A given controller broadcasts position or command signals on the communications link in response to a request report message from any other controller. A second request report message may stop the broadcasting to conserve link capacity. Time shifting implicit in the link messages is corrected by estimating the velocity of the master axis and extrapolating the position to the local axes' time of updating.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.