Non Intrusive Load Monitoring (NILM): a state of the art

The recent increase in smart meters installations in households
and small bussiness by electric companies has led to interest in
monitoring load techniques in order to provide better quality service
and get useful information about appliance usage and user consumption
behavior. This works summarizes the current state of the art in Non Intrusive
Load Monitoring from its beginning, describes the main process
followed in the literature to perform this technique and shows current
methods and techniques followed nowadays. The possible application of
this techniques in the context of ambient intelligence, energy eciency,
occupancy detection are described. This work also points the current
challenges in the eld and the future lines of research in this broad topic.