A platform for ubiquitous sensor deployment in occupational and domestic environments
Proceedings of the 6th international conference on Information processing in sensor networks
ViridiScope: design and implementation of a fine grained power monitoring system for homes
Proceedings of the 11th international conference on Ubiquitous computing
Experiences with a high-fidelity wireless building energy auditing network
Proceedings of the 7th ACM Conference on Embedded Networked Sensor Systems
HeatProbe: a thermal-based power meter for accounting disaggregated electricity usage
Proceedings of the 13th international conference on Ubiquitous computing
Rhythmic Tasks: A New Task Model with Continually Varying Periods for Cyber-Physical Systems
ICCPS '12 Proceedings of the 2012 IEEE/ACM Third International Conference on Cyber-Physical Systems
Tracking states of massive electrical appliances by lightweight metering and sequence decoding
Proceedings of the Sixth International Workshop on Knowledge Discovery from Sensor Data
Improving device-level electricity consumption breakdowns in private households using ON/OFF events
ACM SIGBED Review - Special Issue on the 3rd International Workshop on Networks of Cooperating Objects (CONET 2012)
Low-cost appliance state sensing for energy disaggregation
BuildSys '12 Proceedings of the Fourth ACM Workshop on Embedded Sensing Systems for Energy-Efficiency in Buildings
BuildSys '12 Proceedings of the Fourth ACM Workshop on Embedded Sensing Systems for Energy-Efficiency in Buildings
Accurate real-time occupant energy-footprinting in commercial buildings
BuildSys '12 Proceedings of the Fourth ACM Workshop on Embedded Sensing Systems for Energy-Efficiency in Buildings
Managing plug-loads for demand response within buildings
Proceedings of the Third ACM Workshop on Embedded Sensing Systems for Energy-Efficiency in Buildings
Appliance classification and energy management using multi-modal sensing
Proceedings of the Third ACM Workshop on Embedded Sensing Systems for Energy-Efficiency in Buildings
FixtureFinder: discovering the existence of electrical and water fixtures
Proceedings of the 12th international conference on Information processing in sensor networks
A magnetic field-based appliance metering system
Proceedings of the ACM/IEEE 4th International Conference on Cyber-Physical Systems
Circulo: Saving Energy with Just-In-Time Hot Water Recirculation
Proceedings of the 5th ACM Workshop on Embedded Systems For Energy-Efficient Buildings
Monitoring massive appliances by a minimal number of smart meters
ACM Transactions on Embedded Computing Systems (TECS) - Special Section ESFH'12, ESTIMedia'11 and Regular Papers
Towards automated appliance recognition using an EMF sensor in NILM platforms
Advanced Engineering Informatics
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Non-Intrusive Load Monitoring (NILM) is a promising technique for disaggregating per-appliance energy consumption in buildings from aggregate voltage/current measurements. One major limitation of the approach is that it typically requires a training phase during which users must manually label device transitions. In this paper, we present an inexpensive contactless electromagnetic field (EMF) event-detector that can detect appliance state changes within close proximity based on magnetic and electric field fluctuations. Each detector wirelessly transmits state changes to a circuit-panel energy meter, which can then be used to label and disambiguate appliance transitions detected from the aggregate signals as well as to track the associated energy consumption. Our EMF sensors are able to detect significant power state changes from a few inches away making it possible to externally monitor in-wall wiring to devices (e.g., overhead lights). We experimentally evaluate our proposed EMF sensor in terms of power consumption, accuracy and detection range on a variety of appliances to demonstrate its effectiveness towards augmenting NILM systems. We show that accurately detecting 100W loads from 10cm away is possible while maintaining multiple-year battery life from a coin-cell battery.