Zeit.de: WLAN signals reveal what people are doing

Zeit.de reports on ETH research that analyses WLAN radio waves to determine how many people are in a room and what they are doing — methodological groundwork for the crowd sensing antavi runs today.

The approach uses existing radio infrastructure as a passive sensor, without requiring people to carry a device. The article weighs both the technical potential and the data-protection sensitivity — questions that antavi addresses today through anonymised, consent-based data flows.

Full coverage at Zeit.de.