UK consultancy 42 Technology is identifying household appliances through their mains harmonics and time-domain behaviour – the technique is good enough to tell if a vacuum cleaner is full or empty (right). “We have tested it on a range of devices and been able to identify several as being unique,” project manager Tom Copeland told ...
This story continues at Smart meter identifies household appliance by harmonics
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from Electronics Weekly https://www.electronicsweekly.com/news/products/sensors-products/smart-meter-identifies-household-appliance-harmonics-2017-10/
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