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(11) | EP 0 880 308 A3 |
(12) | EUROPEAN PATENT APPLICATION |
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(54) | Device for monitoring and managing lighting systems |
(57) A device for monitoring and managing systems having a multiplicity of identical network
user items, such as public lighting systems, comprises at each user item a local transmission
unit composed of an element for measuring the feed parameters of the user item, a
local microprocessor for processing said parameters, a transceiver coupled to said
microprocessor and to the feed line of the user item via a carrier-wave module and
a carrier-wave blocking filter, and a central processor which receives signals from
each local microprocessor via the feed line, processes them and transmits signals
to each local microprocessor, wherein the measuring element for the feed parameters
of the user item is a device for measuring the line voltage and current intensity. |