Semi-automatic obturation information transmission change-over device dedicated for railway

Abstract

The invention discloses a railway-dedicated semiautomatic device for transmitting and converting blocked information, which at least comprises two semiautomatic blocking machines situated along the railway between two stations and one section therebetween. The two semiautomatic blocking machines are equipped with a transmission device connected thereto respectively; optical fiber cable and electric cable are connected in parallel between the first transmission device and the second transmission device. The optical fiber cable comprises double-audio main channel, double-audio backup channel and Ethernet channel; the transmission device includes power module, management module and transmission model. The invention adopts electric cable and optical fiber cable to transmit blocking signal simultaneously, blocking signal is transmitted mainly by optical cable to achieve the transition between electrical signal and digital signal. When optical cable is broken down, the device can be automatically switched to transmit signal by electric cable, in addition, the device is capable of detecting integrity of electric cable in optical cable mode, once happening breakdown, the device can alarm immediately.

Description

Technical field: [0001] The invention relates to an information transmission device on a railway communication device, in particular to a semi-automatic blocking information transmission conversion device applied to railway 64D. Background technique [0002] The reliability of railway communication signal transmission is the key factor for the normal operation of railway devices. The existing semi-automatic block information transmission is based on cable transmission. Due to factors such as on-site construction, cable damage often occurs, resulting in signal failure. Normal transmission seriously affects normal railway transportation and brings serious economic losses to the country. [0003] The existing block signal transmission conversion device is relatively simple, and only uses two-way signal transmission, that is, mainly audio 64K. When the audio channel fails, it is switched to the existing cable for signal transmission, and there is no integrity detection of the ca...

AI Technical Summary

Problems solved by technology

[0002] The reliability of railway communication signal transmission is the key factor for the normal operation of railway devices. The existing semi-automatic block information transmission is based on cable transmission. Due to factors such as on-site construction, cable damage often occurs, resulting in signal failure. Normal transmission seriously affects normal railway transportation and brings serious economic losses to the country

[0003] The existing block signal transmission conversion device is relatively simple, and only uses two-way signal transmission, that is, mainly audio 64K. When the audio channel fails, it is switched to the existing cable for signal transmission, and there is no integrity detection of the cable. For example, the cable A series of possible faults such as open circuit and cable short circuit are checked

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