SYSTEM FOR COLLECTING AND PROCESSING ALARM INFORMATION SIGNALS Russian patent published in 2015 - IPC G08C19/02 

FIELD: physics, signalling.

SUBSTANCE: invention relates to remote signalling systems. The system includes n measurement channels as part of sensors (1), converters (2), filters (3), amplifiers (4) level comparators (5), as well as a level setter (6), two switches (7, 10), a control device (8), m integrators (9₁-9_m), a power supply with a converter (12, 13), an output data unit (17), a transmitter (18), a communication channel (19) and a receiver (20). The system includes: a selector (11), a zero-level comparator (14), a controlled count pulse generator (15) and a counter (16) - for analogue-to-digital conversion of alarm signals with controlled repetition frequency of count pulses; an error analyser (22), a comparison unit (23), an additional transmitter (24), a return communication channel (25) and an additional receiver (26) - for generating and transmitting an analogue-to-digital conversion circuit commands for controlling the duration of alarm signal elements, transmitted over the communication channel in interference conditions; a unit for displaying the state of objects (21) - for displaying the alarm signal level with refinement of the object and commands to change the repetition frequency of count pulses.

EFFECT: high noise-immunity of transmitting alarm information signals over a communication channel.

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