Control system employing a programmable multiple channel control

Details Control system employing a programmable multiple channel control Control system employing a programmable multiple channel control

1976-07-12

1977-11-29

Schaefer, Robert K.

Electrical transmission or interconnection systems

Superimposed unlike currents

Different frequencies or phase

340310A, H02J 302

Patent

active

040607356

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.

REFERENCES:
patent: 2745991 (1956-05-01), Seymour
patent: 3689886 (1972-09-01), Durkee

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