Apparatus and method for supporting wireless actuators and other devices in process control systems
US8837354B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 23, 2009 |
| Grant date | Sep 16, 2014 |
| Priority date | — |
| Expiry date | Feb 9, 2031 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P90/02
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A system includes a wireless leaf node configured to modify operation of an industrial process. The system also includes a plurality of wireless access points configured to transmit data to the wireless leaf node in specified time slots and to receive an acknowledgement from the wireless leaf node in response to successful receipt of the data by the wireless leaf node. Various communication schemes are disclosed for supporting communications between the wireless leaf node and the access points. Each access point could also include a local slot manager configured to assign the specified time slots for that access point to communicate with the wireless leaf node. The wireless leaf node could represent a wireless actuator.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.