Control system for controlling environmental conditions in a closed building or other conditions
US5103391A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | May 31, 1989 |
| Grant date | Apr 7, 1992 |
| Priority date | — |
| Expiry date | May 31, 2009 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG05B2219/2642
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
A highly distributed direct digital process control system for use in controlling a fully distributed process includes at least one device controller independently monitoring and controlling a plurality of external devices for performing a complete process. One or more data concentrator units are connected to the controllers for collecting information from each controller as well as directing updated control information to specific controllers. A central information processing means is connected to the data concentrator for displaying information received from the data concentrator. The central information processing means is capable of updating control information used by specific controllers.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.