Affiliation:
1. Shenzhen Institute of Guangdong Ocean University
2. University of Macau
Abstract
This study investigated the influence factors of illuminance
distribution uniformity and the energy-saving ability of the indoor
illumination control system, which consists of a white light-emitting
diodes (WLED) matrix and a tabletop matrix. In the proposed
illumination control method, comprehensive effects of time-invariant
and time-variant sunlight of the outdoor environment, arrangement of
the WLED matrix, iterative functions selected for illuminance
distribution optimization, and compositions of WLED optical spectra
are considered. The non-symmetrical spatial distribution of
WLED-tabletop matrices, the optical spectrum selection of WLEDs, and
the shifting sunlight intensity introduce obvious influence on (a)
emission intensity and distribution uniformity of the WLED matrix and
(b) receiving illuminance intensity and distribution uniformity of the
tabletop matrix. Additionally, the selection of iterative functions,
the WLED matrix dimension, the target error coefficient in the
iteration, and the optical spectra of the WLEDs cause non-negligible
influence on the energy saving percentage and iteration steps of the
proposed algorithm, influencing the effectiveness and accuracy of the
proposed method. Our investigation provides guidelines for the
improvement of optimization speed and accuracy of indoor illumination
control systems, and the method is hopefully to be widely applied in
manufacturing industry and intelligent office buildings.
Funder
Youth Talent Program of the Education
Department of Guangdong Province
National Natural Science Foundation of
China
Subject
Atomic and Molecular Physics, and Optics,Engineering (miscellaneous),Electrical and Electronic Engineering