A photoelectric hybrid bus system for long-distance communication of high-speed trains

Abstract

The invention discloses a photoelectric hybrid bus system applied to long-distance communication of high-speed trains, comprising: a data bus, an arbitration bus, a master console, a repeater and communication equipment. Among them, the data bus is composed of optical fiber, which is divided into main data bus and secondary data bus by connecting different devices. The arbitration bus is composed of twisted-pair copper wires to increase the transmission rate of the system. The main console can control all repeaters and some important communication equipment, and the repeater controls all the communication equipment attached below. All data generated by the communication device and to be exchanged will pass through the arrangement of the connected repeater, and the repeater will buffer the data generated by the communication device and enter the main data bus through the arbitration control module. The photoelectric hybrid bus system provided by the invention has high bus arbitration efficiency and high bus data transmission rate, and is suitable for high-speed trains.

Description

technical field [0001] The invention relates to the field of data transmission bus technology, in particular to a photoelectric hybrid bus system applied to long-distance communication of high-speed trains. Background technique [0002] With the increasing maturity of our country's transportation network, the demand for transportation tools is getting higher and higher, making it move closer to higher speed and higher capacity. Optical fiber communication is the main transmission means of modern communication network and plays a very important role in modern communication. [0003] At present, my country's transportation field has achieved good results in the world, among which high-speed rail is particularly prominent, leading the global high-speed train field in terms of technology and mileage. From the initial high-speed operation to the official announcement of reduced speed for safety, it has had a relatively large negative impact on individuals, industries, and even t...

AI Technical Summary

Problems solved by technology

For high-speed trains such as high-speed rail, excessive forwarding delays are likely to cause safety hazards

If there is no carriage relay, and the control room is directly connected to each carriage, a large number of optical fiber contacts are required between each carriage, and the reliability is difficult to be guaranteed.

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