Information transmission system for railway section

Abstract

The invention discloses an information transmission system for a railway section. The system comprises section equipment, onboard equipment and in-station equipment, wherein the section equipment contacts with the onboard equipment in a wireless way, and contacts with the in-station equipment in a wired or wireless way; the section equipment, the onboard equipment and the in-station equipment form closed loop control over a locomotive signal; the section equipment comprises a master control unit, a master control unit backup, a section radio frequency splitter, a power divider, a plurality of base station antennae and beacon antennae; the section radio frequency splitter is connected with the master control unit, the master control unit backup, the power divider and the beacon antennae respectively; the power divider is connected with the base station antennae; and the master control unit is also connected with the master control unit backup and a plurality of antennae. The information transmission system for the railway section has the characteristics of high information transmission capacity, high anti-interference capability and high adaptability.

Description

technical field [0001] The invention relates to the improvement of the control system of the railway locomotive, more specifically, it is a railway section information transmission system based on wireless control. Background technique [0002] At present, in the train system of our country, in order to ensure the safety of the train and improve the passing capacity of the section, the blocking technology is adopted. The so-called blocking is to ensure that only one train can run at the same time in an interval or blocked area, and the equipment that can only run one train at the same time in a section or blocked area is called blocking equipment. In order to achieve this blocking effect, it is necessary to transmit section signals between the main control unit of the station section equipment and the on-board equipment of the train. The existing section signals (including color light signals, locomotive signals, etc.) are all wired transmission through rails. [0003] The ...

AI Technical Summary

Problems solved by technology

[0003] The existing technology has the following disadvantages: lack of adaptability, when the train speed is increased or the train line is increased, the existing blocking equipment cannot achieve the purpose of blocking, and a large number of adjustments need to be made to the blocking equipment, which requires a lot of time Manpower and material resources; it is impossible to verify whether the signal is correct or not, that is, the main control unit in the blocked area sends relevant driving information to the rails, and after the on-board equipment of the train receives and processes, the result is displayed on the signal machine. As for whether the signal display is correct, this blocked The system cannot be checked; the track circuit used by the station can only check the train occupancy, and it is necessary to add station code equipment to send locomotive signal information; the signal stability is poor, because the track is in a naturally exposed environment, and the system uses analog signals , the signal is susceptible to interference and cause decoding errors, especially in the electrified traction section, the traction backflow will cause great interference to the locomotive signal system; the amount of information transmitted is small, because the track will produce skin effect, which makes the channel capacity of the track It is small, which squeezes the growth space of the train control information. On the one hand, the connection between the station and the train is at a relatively low level. On the other hand, the signal cannot use channel coding technology with stronger anti-interference ability.

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