Title
Towards A New Graph-Based Occupant Behavior Modeling In Smart Building
Abstract
Occupant behavior and space occupancy provide important information to controlling and optimizing energy use in buildings, especially when it comes to heating/cooling, where Heating, Ventilation, and Air Conditioning (HVAC) systems are in use. Besides, thermal comfort is mainly occupant behavior-dependent, based on his movements and space occupancy inside a building over the daytime. Traditional HVAC system functioning, based on turning OFF/ON of the system at the building level, without taking into account space occupancy, can lead to unnecessary heating/cooling of some rooms, which results in a waste of energy, or an under-heating/undercooling of the rooms leading to a lack of comfort. To optimize energy consumption and occupant comfort, we introduce in this paper a temporal graph-based approach for occupants' behavior modeling for energy consumption optimization at room level. Our approach combines a graph learning algorithm, a hierarchical clustering to identify frequent occupants movements within the optimal time interval decomposition of days, and a multi-objective problem resolution. We experimented our approach on a 4-week dataset of 4 occupants movements among office rooms. The first results showed that our model helps minimize energy consumption by up to 62.21% compared to conventional functioning of HVAC systems, and fulfills up to 94.02% of occupants' thermal comfort.
Year
DOI
Venue
2019
10.1109/IWCMC.2019.8766569
2019 15TH INTERNATIONAL WIRELESS COMMUNICATIONS & MOBILE COMPUTING CONFERENCE (IWCMC)
Keywords
Field
DocType
Smart building, Occupant behavior, Energy optimization, Comfort optimization, Graph mining
Air conditioning,Automotive engineering,Ventilation (architecture),Computer science,HVAC,Thermal comfort,Occupancy,Building automation,Energy consumption,Energy minimization,Distributed computing
Conference
ISSN
Citations 
PageRank 
2376-6492
0
0.34
References 
Authors
0
4
Name
Order
Citations
PageRank
Nour Haidar100.34
Nouredine Tamani28814.63
Yacine Ghamri-Doudane375983.02
Alain Bouju400.34