Fig. 7.

Power consumption measurements at sampling rates of 1/6, 1, and 15 Hz. The TV, rice cooker, and washing machine show distinct and visually distinguishable patterns at 15 Hz, but the patterns become less distinguishable at 1 Hz and become visually comparable at 1/6 Hz. Each plot shows 120 seconds of duration; 1/6 and 1 Hz data were generated by down-sampling (taking the first measurements of every 6 seconds and 1 second, respectively).