RU94021640A - Communication line - Google Patents

Abstract

FIELD: communication. SUBSTANCE: line ensures communication between railway passenger cars or underground cars. Multiplexer on one of cars multiplexes digital signals presenting conditions of cars and converts them into first digital signal of train line. Transmitter switches on modulator which converts digital signal of train line into radio signal and radio signal is sent from first car to second car through free space. Second car switches on antenna to receive radio signal and receiver to demodulate signal and convert it into second digital signal of train line. Demultiplexer demultiplexes second digital signal of train line into formats fit for reading by train systems on board second car. Both first and second cars switch on multiplexers and demultiplexers, transmitters and receivers so that it will be possible to communicate both between first and second cars and between second and first cars. EFFECT: higher operational reliability of communication line.

Claims (1)

A communication line provides communication between railway cars or subway cars. On at least one of the cars, the multiplexer multiplexes digital signals representing the state of the various car systems and converts them into the first digital train signal. The transmitter includes a modulator, which converts the digital train signal into a radio signal, and the radio signal is transmitted by the antenna through the free space from the first to the second car. The second car includes an antenna for receiving a radio signal and a receiver for demodulating the signal and converting it into a second digital train signal. The demultiplexer demultiplexes the second digital signal of the train line into formats suitable for reading by train systems on board the second car. Both the first and second cars include multiplexers and demultiplexers, transmitters and receivers, so that communication is possible between the first and second cars, and between the second and first cars.