A privacy-friendly alternative
For six years, imec – Flanders’ strategic research center for nanotech and digital innovation – and the University of Antwerp have searched for the most effective way to measure the density of crowds. The result of this collaboration project is CrowdScan.
Unlike most detection systems, CrowdScan does not use any camera footage, smartphone information, or other privacy-sensitive data to determine overcrowding. Instead, a wireless sensor network transmits low-energy radio waves and measures how much the signal in a busy place attenuates compared to when it is empty.