Метод передачи аварийных сигналов на распределенной информационно-телекоммуникационной сети Росморречфлота

Abstract

A method of transmitting alarm signals on a distributed public information and telecommunications network is presented, which allows for noise-resistant transmission of measuring information about the state of elements of a geographically distributed telecommunications structure of the department using decameter radio lines based on the use of linear-frequency-modulated, as well as discrete linear-frequency-modulated signals., this makes it possible to improve the noise immunity of the subsystem for remote monitoring of the state of a geographically distributed information and telecommunications network. The purpose of the work is to increase the noise immunity of accident signals on a telemetry system of a distributed network infrastructure operating in a complex interference situation and other destabilizing factors. Methods used: formation of a promising signal-code structure in radio channels of a telemetry system; the use of the mode of changing the operating frequency according to a pseudo-random law in the interests of transmitting measuring information. Novelty: increasing the capabilities of the remote monitoring subsystem by expanding the degrees of freedom of the operator of the telemetry system – auditory, visual and automatic reception of alarms. The result obtained is a graphical representation of the received binary parcels of the accident signals on a waterfall-type spectrogram, while instead of "dots" and "dashes" of the Morse code, linear-frequency-modulated or discrete-linear-frequency-modulated signals with a decreasing or increasing slope gradient are displayed.