FIELD: intruder alarm.
SUBSTANCE: system contains GPS-module and subscriber's instrument available with the subscriber, which includes alarm button and receiving-transmitting module connected through the base station to dispatcher's center. The latter is arranged with the possibility to detect subscriber's location by coordinates measured with the help of GPS-module, and also with the possibility to interact with forces and facilities of reaction and connection of external alarm devices. GPS-module is inbuilt into subscriber's instrument that contains ball filled with gas, for instance, helium, and due to that it has the possibility to lift up for provision of direct radio visibility with base station.
EFFECT: increase of coverage area.
1 dwg
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