TY - JOUR
T1 - Daylight-adaptive lighting control using light sensor calibration prior-information
AU - Caicedo, David
AU - Pandharipande, Ashish
AU - Willems, Frans M.J.
PY - 2014/4/1
Y1 - 2014/4/1
N2 - We consider a daylight-adaptive lighting control system to adapt dimming levels of artificial light sources with changing daylight, under illumination constraints specified at the horizontal workspace plane of an occupant. We propose a control method for achieving a minimum illuminance at the workspace plane using illuminance measurements at light sensors situated at the ceiling, and additional prior-information from sensor calibration. The proposed method results in a linear programming optimization problem with inequality constraints. Using simulations with photometric data, we compare our sub-optimum solution with the solution where knowledge of the illuminance mapping from the light sensors to workspace illuminance values is available, and with a reference method that is based on satisfying illuminance constraints specified at the light sensors.
AB - We consider a daylight-adaptive lighting control system to adapt dimming levels of artificial light sources with changing daylight, under illumination constraints specified at the horizontal workspace plane of an occupant. We propose a control method for achieving a minimum illuminance at the workspace plane using illuminance measurements at light sensors situated at the ceiling, and additional prior-information from sensor calibration. The proposed method results in a linear programming optimization problem with inequality constraints. Using simulations with photometric data, we compare our sub-optimum solution with the solution where knowledge of the illuminance mapping from the light sensors to workspace illuminance values is available, and with a reference method that is based on satisfying illuminance constraints specified at the light sensors.
KW - Convex optimization
KW - Daylight-adaptive lighting control
KW - Energy-efficient lighting systems
KW - Light sensor calibration
UR - http://www.scopus.com/inward/record.url?scp=84893737319&partnerID=8YFLogxK
U2 - 10.1016/j.enbuild.2014.01.022
DO - 10.1016/j.enbuild.2014.01.022
M3 - Article
AN - SCOPUS:84893737319
SN - 0378-7788
VL - 73
SP - 105
EP - 114
JO - Energy and Buildings
JF - Energy and Buildings
ER -