Basestation Trackers: The base station trackers are
hosted on mini PCs or laptops that have Bluetooth dongles
attached and are placed at specific fixed locations, providing
full coverage for a monitored area. As mentioned above,
trackers are placed in proximity of each other so that their
scan ranges overlap and we are able to infer presence of a
device at intermediate locations. The traces gathered after
an inquiry scan are transmitted towards the local database
after the end of the inquiry phase.