Control system employing a programmable multiple channel controller for transmitting control signals over electrical power lines
US4060735A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jul 12, 1976 |
| Grant date | Nov 29, 1977 |
| Priority date | — |
| Expiry date | Jul 12, 1996 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY04S40/121
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A control system including a programmable multiple channel digital controller which is operable to generate control signals which are transmitted over electrical power lines of a building complex for enabling receivers associated with functional devices for controlling the operation of functional devices, the transmitter being operable to transmit control signals during selected ones of a plurality of data channels which define a data frame, and in one embodiment, different ones of the receivers are programmed to respond to control signals transmitted in different data channels for controlling the associated functional device. In another embodiment, the transmitted control signals are coded to represent an address of one or more of the receivers and a control command, each receiver comparing its address with the transmitted address, and the addressed receiver effecting the control function represented by the control command.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.