Experiences with a high-fidelity wireless building energy auditing network

We describe the design, deployment, and experience with a wireless sensor network for high-fidelity monitoring of electrical usage in buildings. A network of 38 mote-class AC meters, 6 light sensors, and 1 vibration sensor is used to determine and audit the energy envelope of an active laboratory. Classic WSN issues of coverage, aggregation, sampling, and inference are shown to appear in a novel form in this context. The fundamental structuring principle is the underlying load tree, and a variety of techniques are described to disambiguate loads within this structure. Utilizing contextual metadata, this information is recomposed in terms of its spatial, functional, and individual projections. This suggests a path to broad use of WSN technology in energy and environmental domains. Categories and Subject Descriptors H.4 [Information Systems Applications]: General; B.4 [Input/Output and Data Communications]: General General Terms Design, Experimentation, Measurement, Performance, Human ...

• Type: Conference
• Year: 2009
• Where: SENSYS
• Authors: Xiaofan Jiang, Minh Van Ly, Jay Taneja, Prabal Dutta, David E. Culler
• Keywords: Classic WSN Issues, Sensor Networks, SENSYS 2009, Wireless Sensor Network