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== Master/Slave Systems ==

In such a system, one or more [[OpenBeacon]]s are exchanging information with devices called [[Base Station]]s.
Typical examples of such systems are

=== Classic RFID ===

In a Classic RFID system, the [[OpenBeacon Tag]] will be programmed with a firmware that either regularly transmits a frame, or regularly switches on the receiver to listen for inquiries received by a bases station (aka RFID Reader). 

However, due to its active 2.4GHz transceiver architecture, only the systemic / high level view will be that of a "Classic RFID".  The device will always be battery-powered and can not act as a passive transponder.  The advantages of an active RFID system are:

* high range
* way more than just a dumb ID or read-only or read-write memory
* can be cryptographically secure
* has a full processor on the Tag side
* Tag can control peripheral devices
* Meshing protocols possible!

=== Location Tracking ===

Location tracking using [[OpenBeacon Tag]]s can be implemented by running a OpenBeacon firmware that regularly transmits beacon packets.  Such packets can then be received by [[Base Station]]s in the vicinity (up to 10m, even through drywalls).

Signals received by one or more base stations can then be used to estimate the position of the tag.

Such a OpenBeacon based system has been deployed the first time under the name of [[Sputnik]].