Dispatching system for railway train operation by adoption of intelligent vehicle axle-counting device

Abstract

Provided is a dispatching system for railway train operation by adoption of an intelligent vehicle axle-counting device. The dispatching system comprises a rail turnout mechanism controlled by a station signal machinery room (3), a signal lamp mechanism and a vehicle position detecting device. The station signal machinery room is in communication with a dispatching calling center via a special-purpose communication channel. The vehicle position detecting device is a vehicle intelligent axle-counting device and configured in that the inside of a track is at least provided with two passive wheel detectors (1) and an intelligent axle-counter (2) arranged on the rail side. Electric signals emitted by the two passive wheel detectors (1) are converted to axle-counting signals via the intelligent axle-counter (2) on the rail side. The axle-counting signals are in communication with the station signal machinery room (3) via the communication channel. The dispatching system for railway train operation by adoption of the intelligent vehicle axle-counting device has following beneficial effects: the system is capable of not only obtaining position information of trains but also speed, total axle number, numbers and types of vehicles more accurately and reliably such that operation state of trains on lines can be accurately mastered in a real-time manner; and safety and efficiency of train operation are better ensured.

Description

technical field [0001] The invention relates to a railway traffic dispatching system adopting an intelligent vehicle axle counting device. Background technique [0002] The railway traffic dispatching system includes the turnout mechanism controlled by the station signal machinery room, the signal light mechanism and the vehicle position detection device. The station signal machinery room communicates with the traffic dispatch center through a dedicated communication channel. The vehicle position detection device uses the track circuit system to detect the train traffic conditions in the section. When it is detected that there is a train passing in the section, the station signal machinery room controls the red light in the signal light mechanism to emit light, so as to prevent the rear vehicle from entering the section and causing a collision accident. After detecting that the train in the section has passed, the station signal machinery room controls the green light in th...

AI Technical Summary

Problems solved by technology

[0004] 1. The surface of the rail is corroded or the surface of the rail is covered by dust or oil stains, which will interfere with the correct detection of the short-circuit signal and cause errors in the train position information;

[0005] 2. The train information error will also be caused by the disconnection of the rail end connecting wire of the track circuit, poor contact, and damage to the insulation of the rail end;

[0006] 3. Due to rain, fog, frost, snow, wet geological conditions and other natural environments, it will also interfere with the correct detection of short-circuit signals, resulting in errors in track circuit information, and the so-called track circuit idle red light is displayed in the traffic dispatching center and station signal machinery room bring;

[0007] 4. With the continuous extension of the electrified railway, the 50Hz power frequency and the corresponding high-order harmonic interference generated by the high-voltage transmission line of the electrified railway and the high-frequency interference generated by the stepless variable speed of the traction power of the locomotive will also interfere with the correct detection of the short-circuit signal

Vehicle position signal errors caused by these factors will seriously threaten railway traffic safety, transportation efficiency and transportation capacity

In order to alleviate these interferences, the track circuit needs to add various additional equipment, which greatly increases the complexity of the track circuit, the amount of construction work, the cost of equipment, and the cost of maintenance.

At the same time, it will also reduce the stability and reliability of the track circuit work

And, because the track circuit detects whether the two tracks in the section are short-circuited, it can only output the information of whether there is a train passing in a certain section, and cannot detect the speed of the passing train, the type of vehicle, the number of vehicles, Number of axles of the vehicle, ...

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