Monitoring Large Crowds With WiFi: A Privacy-Preserving Approach. (arXiv:2010.10370v2 [eess.SY] UPDATED)

This paper presents a crowd monitoring system based on the passive detection
of probe requests. The system meets strict privacy requirements and is suited
to monitoring events or buildings with a least a few hundreds of attendees. We
present our counting process and an associated mathematical model. From this
model, we derive a concentration inequality that highlights the accuracy of our
crowd count estimator. Then, we describe our system. We present and discuss our
sensor hardware, our computing system architecture, …

large monitoring privacy wifi