Lighting control

Details Lighting control Lighting control

1990-12-06

1992-03-31

Mis, David

Electric lamp and discharge devices: systems

Current and/or voltage regulation

Plural load device regulation

315312, 315318, 315360, H05B 3702

Patent

active

051011417

ABSTRACT:
From one aspect the invention provides apparatus for controlling mains electrical circuits including lighting circuits, comprising a remotely controlled receiver unit responsive to received control signals, the receiver unit comprising means for decoding such received control signals in relation to at least two controlled channels for said circuits, means for each channel responsive to plural decoded control signal possibilities for providing signals for the said channel concerned, and selection means associated with the signal providing means for selecting whether or not particular said decoded signal possibilities result in said signals being available and applied to said channel. From another aspect the invention provides apparatus for controlling mains electrical circuits including lighting circuits, comprising control units local to areas or zones served by corresponding said circuits, each local control unit comprising means responsive to local occupancy sensing for switching on of one or more of said circuits and means responsive to other received signals for overriding such switching on irrespective of local occupancy sensing.

REFERENCES:
patent: 4095139 (1978-06-01), Symonds et al.
patent: 4217646 (1978-12-01), Caltagirone et al.
patent: 4240011 (1980-12-01), Dinges et al.
patent: 4388567 (1983-06-01), Yamazaki et al.
patent: 4461977 (1982-12-01), Pierpoint et al.
patent: 4489385 (1981-11-01), Miller et al.
patent: 4574355 (1983-11-01), Beatty et al.

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