Ambient lighting control system
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United States of America Patent
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Oct 25, 2016
Grant Date -
Aug 7, 2014
app pub date -
Sep 4, 2012
filing date -
Sep 12, 2011
priority date (Note) -
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status (Latency Note)
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Abstract
In one embodiment there is provided an ambient lighting control system 1 comprising a controller (2) and a sensor node (3a). The sensor node (3a) comprises an arrangement including a light energy collecting element (8) such as a solar cell, an energy storage element (9) and a transmitter (11). The collecting element (8) charges the storage element (9). The transmitter (11) is arranged to transmit signals to the controller (2) using energy stored by the energy storage element (9), wherein the number of signals provided during a time interval to the controller (2) is proportional to a light intensity at the light energy collecting element (8). The controller (2) may thus output a control signal C for controlling an amount of ambient lighting, wherein the control signal is based on the determined number of received signals.
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