Comprehensive train early warning system and its method

Abstract

The present invention discloses comprehensive railway train early warning system and its operation method. The present invention works in frequency channel dissimilar to that for train scheduling signal, and has no problems of co-channel interference, radio train scheduling signal cross-talk and weak field signal covering by strong region. The system of the present invention can be used in railway multiple track and other sections with poor radio transmission condition. In addition, the railway train early warning system can send various early warning information and alarm information in broadcast mode, and may receive warning information along the line to avoid running accident and raise safety.

Description

technical field [0001] The present invention relates to a comprehensive early warning system for railway trains and its working method. More specifically, the present invention relates to a system and method capable of providing early warning information for the operation of railway trains and personnel safety. Background technique [0002] In the prior art, there are various train tail confirmation devices or detection devices, which are used to solve the problem: after the railway freight train cancels the guard car, the carriages at the rear of the train are disjointed, which causes a major hidden danger to the safe operation of the railway. Just disclose a kind of method for confirming the tail of train as in patent document CN1142454A, this method adopts wind pressure detecting device to detect whether the tail of train is normal, and similar wind pressure alarm device of train tail has become the effective means of grasping the compartment condition of train tail And b...

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Problems solved by technology

[0002] In the prior art, there are a variety of tail confirmation devices or detection devices, which are used to solve the problem: after the railway freight train cancels the guard car, the carriages at the rear of the train are out of joint, which causes a major hidden danger to the safe operation of the railway.

Just disclose a kind of method for confirming the tail of train as in patent document CN1142454A, this method adopts wind pressure detecting device to detect whether the tail of train is normal, and similar wind pressure alarm device of train tail has become the effective means of grasping the compartment condition of train tail And be widely used, as just disclosed such row end device in patent document CNCN1118319A, CN2124172U, existing train tail wind pressure warning device (as existing ZTF-2002 type, CP-3 type row tail device at present in China) has Many functions, such as displaying the wind pressure value at the rear of the train, automatically detecting the leakage of the air duct, prompting the complete arrival of the whole train, and "black box" data recording function, etc., but most of these alarm devices are connected to the 450MHz of wireless train control On the channel, the train dispatching channel is used to perform remote control and telemetry on the host of the train end device. In recent years, although some methods to overcome interference (such as two-way data transmission) have been adopted, the problems of co-frequency interference and mutual interference with wireless train dispatching still exist , the problem is particularly serious i

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