公开(公告)号：US20170181247A1

公开(公告)日：2017-06-22

申请号：US15383783

申请日：2016-12-19

Applicant: PHILIPS LIGHTING HOLDING B.V.

Inventor： SRI ANDARI HUSEN ,  YAO-JUNG WEN ,  JULES MARTINUS ADRIANUS GERARDUS DE LAAT

IPC: H05B37/02

CPC classification number: H05B37/0218 ,  H05B33/0845 ,  H05B37/02 ,  H05B37/0227 ,  H05B37/0245 ,  H05B37/0254

Abstract: The invention relates to a light control system (120;121) for controlling a lighting system (100). The light control system (120;121) is arranged to receive a power reduction parameter (alpha). The light control system comprising a light controller (134) arranged to receive a measured light value from a light sensor (127), to determine a light channel level value depending on the measured light value and a calibrated setpoint value if no power reduction parameter has been received, and to determine a light channel level value depending on the measured light value and a scaled calibrated setpoint value if the power reduction parameter has been received, the scaled calibrated setpoint value being equal to the calibrated setpoint value multiplied by the power reduction parameter. A load controller (135) is arranged to receive the light channel level value from the light controller, to determine an output level signal depending on the light channel level value if no power reduction parameter has been received and to determine a scaled output level signal if the power reduction parameter has been received, the scaled output level signal being equal to the output level signal multiplied by the power reduction parameter, and to send the output level signal or the scaled output level signal to drivers of light sources of the lighting system.

公开(公告)号：US20170127496A1

公开(公告)日：2017-05-04

申请号：US15318128

申请日：2015-06-08

Applicant: PHILIPS LIGHTING HOLDING B.V.

Inventor： ASHISH VIJAY PANDHARIPANDE ,  SRI ANDARI HUSEN ,  DAVID RICARDO CAICEDO FERNANDEZ

IPC: H05B37/02

CPC classification number: H05B37/0245 ,  H05B37/0218 ,  H05B37/0227 ,  Y02B20/46

Abstract: The invention relates to a method for managing light settings of a luminaire communicatively connected to a local coordinator. The method, performed by the luminaire, includes steps of providing to the local coordinator a control state of the luminaire (e.g. occupancy status), receiving from the local coordinator a power reduction factor for the luminaire, the factor being based on the control state of the luminaire and on control states provided to the local coordinator by one or more additional luminaires, determining new illuminance settings for the luminaire by applying the received factor to current illuminance settings, measuring luminance within a sensing region of a light sensor of the luminaire while one or more light sources of the luminaire emit light according to one or more operating parameters, and, based on the measured luminance, adjusting the operating parameters to achieve the new illuminance settings.