Distributed environmental/load control system
US4657179A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Dec 26, 1984 |
| Grant date | Apr 14, 1987 |
| Priority date | — |
| Expiry date | Dec 26, 2004 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG05D23/1905
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
A distributed environmental/load control system comprising a thermostat operable to supply signals indicative of sensed and desired values of a parameter in an environmentally controlled space to a first controller operable to control condition changing equipment for regulating the parameter, the signals being transmitted over a communications link between the thermostat and first controller. A second controller which is operable to control a plurality of loads in accordance with predetermined criteria to limit energy consumed by the loads is connected to the communications link through an interface device operable to process the signals produced by the thermostat in response to instructions furnished by the second controller and to supply the processed signals to the first controller.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.