It would be worthwhile to also scan bluetooth discoverable devices and try to normalize the two for cases where: * you usually see entry and exits of both and

It would be worthwhile to also scan bluetooth discoverable devices and try to normalize the two for cases where: * you usually see entry and exits of both and can start to map them as "one" user. * you see only wifi entries and exists without corresponding bluetooth (maybe user usually has bluetooth turned off or is out of range of BT capture). * You see only BT with no corresponding wifi (user has discoverable bt but wifi off). The normalization is complicated as wifi/bt range are pretty different (unless you have hardware to extend the pickup for bt) -- but if you deal with a time window slide (and repeat event correlations) it should be possible.