Multi-objective optimisation of lighting installations taking into account user preferences – a pilot study

Abstract

A multi-objective methodology is proposed to optimise lighting solutions by taking into account not only energy objectives but also subjective ones such as visual preferences. The originality of this method lies in the integration of subjective data obtained from psycho-visual tests conducted with panels of observers potentially representative of end users, into a multi-objective optimisation framework. This method makes it possible to identify all the best tradeoffs and the direct correspondence between power demand and user visual preferences, to handle constraints, to handle inter-individual differences and to optimise preferences on various visual attributes at the same time. The methodology was developed through a pilot study of office lighting optimisation. The findings are consistent with previous work and provide additional application knowledge about the case study.

Comparison of User Experiences Based on Watching 360° Immersive Video and Reality – A Case Study of a Scooter Ride

“…Experiences created by the VR system, are expected to provide sensory, emotional, cognitive, and behavioural values that replace functional values. Related simulations have been verified to evoke user responses, similar to those in physical environments [15]. The most deeply compelling VR experiences are associated with high levels of immersion.…”

“…VR provides a simulated means of creating a sensory and psychological experience for users as an alternative to reality; experiences are expected to provide sensory, emotional, cognitive, and behavioural values that replace functional values. Related simulations have been verified to evoke user responses, similar to those in physical environments [15]. In VR environments, objects provide the user with visual feedback, which may be presented through an HMD projection system, or flat screen.…”

Systematic review on the interaction between office light conditions and occupational health: Elucidating gaps and methodological issues

“…An X indicates that the health outcome was investigated, it does not give any indication on the strength or significance of the correlation between that health indicator and the office light conditions References Borisuit et al 33 Münch et al 34 Viola et al 35 Linhart et al 36 Mills et al 37 Figueiro et al 38 Das 39 Kozaki et al 40 Vetter et al 41 Maleetipwan-Mattsson et al 42 Geerdinck et al 43 Viitanen et al 44 Veitch et al 15 Villa et al 45 Hedge et al 46 Jafari et al 47 Hirning et al 48 Hirnign et al 49 Xia et al…”

“…All our literature studies included in this review, there were only six articles 33,35,37,46,47,51 discussed and investigated physical or physiological health issues and six articles investigated on mental health 15,33,35,37,38,51 aspects when reviewing the influence of office light conditions on OH. The fact that there were eleven articles related to visual comfort 15,33,36,[42][43][44][45][48][49][50][51] and ten articles related to sleep parameters [33][34][35][36][37][38][39][40][41][42][43][44][45][46][47][48][49][50][51] indicates the focus of current office lighting research. This also highlights that sleep disorders and visual comfort are assumed to be important for OH.…”

Smart indoor lighting systems with luminaire-based sensing: A review of lighting control approaches

“…An important challenge is to take user preferences into account in lighting control. Works [35][36][37][38][39] have considered different optimization and control frameworks to take into account user preferences and satisfaction with rendered illumination. In these works, the preference of users to desired illumination levels was modeled using analytical functions, and taken into account in the control design.…”