System for selectively addressing electrical control signals fro

Details System for selectively addressing electrical control signals fro System for selectively addressing electrical control signals fro

1983-11-23

1985-09-10

Pellinen, A. D.

Electrical transmission or interconnection systems

Plural load circuit systems

Selectively connected or controlled load circuits

307 1, 307 41, 340310R, 340310A, H02J 1300, H04Q 910

Patent

active

045408904

ABSTRACT:
The system comprises a central control unit and a plurality of remote units connected to the control unit by a single, common, transmission link. This link acts simultaneously as a signalling link and as the electrical voltage supply line for the remote units. The control unit transmits electrical control signals to the remote unit by superimposing trains of pulses on the supply voltage that is fed via the transmission link to the remote units. Each remote unit is arranged to count the control signal pulses appearing on the line and to activate one or more controlled devices when the number of pulses counted corresponds to a unique number associated therewith. A first type of controlled device is constituted by sensor means arranged to monitor a physical quantity and to output, when activated, related electrical information signals indicating to the control unit the value of the monitored quantity; the information signals take the form of frequency modulation of the current flowing in the transmission link. A second type of controlled device is constituted by actuators which when activated are arranged to effect predetermined operations.

REFERENCES:
patent: 3729710 (1973-04-01), Sherwin
patent: 4131882 (1978-12-01), Hollasaugh et al.
patent: 4348582 (1982-09-01), Budek
patent: 4361766 (1982-11-01), de Montgolfier et al.
patent: 4385241 (1983-05-01), Peddie et al.
patent: 4471232 (1984-09-01), Peddie et al.

Affiliated with

Also associated with

Rating

System for selectively addressing electrical control signals fro does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with System for selectively addressing electrical control signals fro, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and System for selectively addressing electrical control signals fro will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1430435