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A method for measuring urban space density of people and deliver notification, with respect to privacy

The case of Covid-19, and the measures taken worldwide, have driven to the establishment of specific codes of conduct by citizens, and strict rules concerning the density of people. In parallel, efforts to make use of mobile device technologies to help enforce these measures, have led to privacy concerns. In this paper, we present a method for estimating people density in urban spaces, using mobile communication technologies, while protecting privacy. The method is based on counting BT and Wi-Fi enabled devices within range of an autonomous device, isolated from the internet, with the ability to broadcast the crowd density.