System and method for controlling access to local services without losing failover capibilty
US7886338B2 · kind B2 · utility
12Cited by
77References
13Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Oct 9, 2007 |
| Grant date | Feb 8, 2011 |
| Priority date | — |
| Expiry date | Oct 18, 2029 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L2012/285
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A system and method are provided for controlling access to local electronic devices in an automation network while maintaining failover capability. The method can include the operation of setting a state of a networked device to an online state. Another operation is sending a communication from the networked device to a controller requesting permission to change state of the networked device. The networked device may wait a predetermined amount of time to receive permission to change state. The state of the network device can change without permission from the controller after the predetermined amount of time has passed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.