Distributed control system and communication control method therefor
US11343119B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 15, 2019 |
| Grant date | May 24, 2022 |
| Priority date | — |
| Expiry date | Jan 15, 2039 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L2012/4026
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
In the present invention, device information is collected while real-time performance and high-speed performance of control-related normal communication are maintained. The distributed control system has: a central processing device; a central communication device; multiple terminal communication devices each having at least one controlled device connected thereto; an information storage device; and a network having a tree structure comprising multiple communication paths between the central communication device and the terminal communication devices, between the terminal communication devices, and between the terminal communication devices and the information storage device. The network is provided with a first communication path for connecting the upstream-side communication port of a terminal communication device with the downstream-side communication port of a terminal communication device and for connecting the upstream-side communication port of a terminal communication device with the normal communication port of the central communication device; and a second communication path for connecting between the downstream-side communication ports of terminal communication devices p…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.