A Multi-Objective Optimisation Mathematical Model with Constraints Conducive to the Healthy Rhythm for Lighting Control Strategy

Huiling Cai, Qingcheng Lin, Hanwei Liu, Xuefeng Li and Hui Xiao ()
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Huiling Cai: College of Electronic and Information Engineering, Tongji University, 4800 Cao’an Highway, Shanghai 201804, China
Qingcheng Lin: College of Electronic and Information Engineering, Tongji University, 4800 Cao’an Highway, Shanghai 201804, China
Hanwei Liu: College of Electronic and Information Engineering, Tongji University, 4800 Cao’an Highway, Shanghai 201804, China
Xuefeng Li: College of Electronic and Information Engineering, Tongji University, 4800 Cao’an Highway, Shanghai 201804, China
Hui Xiao: College of Electronic and Information Engineering, Tongji University, 4800 Cao’an Highway, Shanghai 201804, China

Mathematics, 2022, vol. 10, issue 19, 1-14

Abstract: Studies have shown that illuminance and correlated colour temperature (CCT) are strongly correlated with body responses such as circadian rhythm, alertness, and mood. It is worth noting that these responses show a complex and variable coupling, which needs to be solved using accurate mathematical models for the regulation of indoor light parameters. Therefore, in this study, by weighing the evaluations of visual comfort, alertness, valence, and arousal of mood, a multi-objective optimisation mathematical model was developed with constraints conducive to the healthy rhythm. The problem was solved with the multi-objective evolutionary algorithm based on the decomposition differential evolution (MOEA/D-DE) algorithm. Taking educational space as the analysis goal, a dual-parameter setting strategy for illuminance and CCT covering four modes was proposed: focused learning, comfortable learning, soothing learning, and resting state, which could provide a scientific basis for the regulation of the lighting control system. The alertness during class time reached 3.01 compared to 2.34 during break time, showing a good light facilitation effect. The proposed mathematical model and analysis method also have the potential for application in the lighting design and control in other spaces to meet the era of intelligent, highly flexible, and sustainable buildings.

Keywords: mathematical modelling; multi-objective evolutionary algorithms; visual comfort; alertness and mood; lighting control strategy; illuminance; correlated colour temperature; colour rendering index (search for similar items in EconPapers)
JEL-codes: C (search for similar items in EconPapers)
Date: 2022
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