SITE PROTECTION DEVICE Russian patent published in 2008 - IPC G08B15/00 

FIELD: physics, signalling.

SUBSTANCE: invention relates to security systems and may be used for guarding various sites. The site protection device contains an electronic security signalling device with at least one sensor connected to it, and a generator with a radiator. The electronic security signalling device output is connected to the generator start input, and the electronic security signalling device is designed so as to provide for automatic friend/foe recognition within a certain time period after the activation of at least one security signalling sensor, by using wireless exchange of coded signals between fixed nodes of the friend/foe system of the electronic security signalling device, installed in the local areas of the site, and at least one mobile node of the friend/foe system equipped with a standby power supply unit.

EFFECT: considerable quickening and simplification of the site protection device operation due to the application of automatic friend/foe system in local areas of the site.

9 cl, 2 dwg