FIELD: alarm systems, possible use by individuals, equipped with devices for individual operative notification of interested persons or specialized services about safety threats to clients.
SUBSTANCE: system is provided with fiber-optic cable, laid in mine and connected to dispatching center. Autonomous carried client device has optical microphone with socket for connection to fiber-optic cable and device for its mounting on fiber-optic cable. Block for processing graphic information includes reflection meter.
EFFECT: expanded area of possible use due to possible usage in network of underground mines and explosion-hazardous environment.
8 cl, 2 dwg
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