The “same place” means devices within radio range of each other. This means a set of devices that can hear each other and thus could possibly range to each other or could interfere with each other. The radio signals don’t know to magically stop at some precise distance, otherwise, we’d use that feature alone to do this.
Consider a room that is 30 x 30 meters. That’s 540 people at 15 per 25 square meters, and they are all within UWB radio range of each other leading to 145,530 unique distances between pairs of people. Without any infrastructure, you can detect when people get within 2 meters of each other and do that often enough to be useful, and not deplete the batteries rapidly? Doesn’t seem possible since this implies a distance measurement every 7 microseconds.
Can you more precisely describe what you are actually achieving? Expressing it as a simple tag density doesn’t compute.
Mike Ciholas, President, Ciholas, Inc
3700 Bell Road, Newburgh, IN 47630 USA
+1 812 962 9408