Signal relay device, communication network system and operation system
US7999661B2 · kind B2 · utility
0Cited by
4References
34Claims
0Family size
Assignee
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Key dates
| Filing date | Jun 23, 2005 |
| Grant date | Aug 16, 2011 |
| Priority date | — |
| Expiry date | Mar 9, 2027 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG05B2219/31369
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A signal relay device, a communication network system and an operation system include: a standardized logic interface conversion unit for judging a control system type or a device type and converting a signal to a signal appropriate for a communication network; or a device side logic interface conversion unit for converting a signal from the communication network to a signal appropriate for the control system type or the device type. An operation monitoring station includes a an advanced control block for the control system or the device and transmits a control signal to the communication network.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.