Popis: |
Fine-grained awareness on how and where energy is spent is being increasingly recognized as the key to conserve energy. While several solutions to monitor the energy consumption patterns for commercial and industrial users exist, energy reporting systems currently available to residential users require time-consuming and intrusive installation procedures, or are otherwise unable to provide device-level reports on energy consumption. To fill this gap, this paper discusses the design and performance evaluation of the Tiny Energy Accounting and Reporting System (TinyEARS), a fine-grained energy monitoring system that generates devicelevel power consumption reports primarily based on the acoustic signatures of household appliances. Experiments demonstrate that TinyEARS is able to report the power consumption of individual household appliances within a 10% error margin. |