Photoelectric hybrid bus system applied to long-distance communication of high-speed train

Abstract

The invention discloses a photoelectric hybrid bus system applied to long-distance communication of a high-speed train. The photoelectric hybrid bus system comprises a data bus, an arbitration bus, amaster console, repeaters and communication equipment, wherein the data bus is composed of optical fibers and is divided into a backbone data bus and a secondary data bus by being connected with different equipment; the arbitration bus is composed of twisted-pair copper wires, so that the transmission rate of the system is increased; the master console can control all repeaters and part of important communication equipment, and the repeaters control all the communication equipment hung below; and all data generated by the communication equipment and needing to be interacted are arranged by means of the connected repeaters, and the repeaters cache the data generated by the communication equipment and enter the backbone data bus through an arbitration control module. The photoelectric hybridbus system provided by the invention is high in arbitration efficiency of the bus, high in data transmission rate of the bus and suitable for trains running at a high speed.

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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