A train positioning device and method

Abstract

The invention discloses a train positioning device and method. The device comprises multiple vibration sensors arranged beside a rail, communication modules and a data processing host. The vibration sensors acquire vibration signals generated when a train runs on the rail and send the acquired vibration signals to the data processing host through the communication modules. The method includes the steps that when the train runs on the rail, if the vibration sensors detect the vibration signals, the communication modules send the vibration signals detected by the vibration sensors to the data processing host; the data processing host judges whether the vibration signals belong to the vibration signals generated by running of the train or not; and if the vibration signals belong to the vibration signals generated by running of the train, current position information of the train is acquired according to waveform energy of the vibration signals and / or the transmission time period corresponding to the vibration signals and vibration sensor identifiers. By the adoption of the device, vibration energy generated in the running process of the train, vibration time information and the like are measured, so that the position of the train relative to the vibration sensors is confirmed, and therefore information of the position of the train on the rail is acquired.

Description

technical field [0001] The invention relates to the field of data processing, in particular to a train positioning device and method. Background technique [0002] In urban rail transit, train positioning generally adopts the track circuit method, which divides the rail area into different sections, and adds sending / receiving devices at the beginning and end of each section to form an information transmission loop. When the section is idle, the information is transmitted from the sending end to the receiving end through the loop, and the relay at the receiving end is excited and picked up; when the train enters the section, the wheelset short-circuits the two rails, and the information cannot reach the receiving end, and the relay at the receiving end loses excitation and falls , so as to achieve the purpose of train detection and positioning. [0003] In addition, in urban rail transit, the technical means of deploying transponders is also used for train positioning. By a...

AI Technical Summary

Problems solved by technology

[0004] However, the track circuit technology is to electrify the rail and pass the current loop to form a detection system, but it can only judge that the car is in the section, but cannot judge the precise position of the car; in addition, when the car enters a section, due to vehicle bumps or other The reason is that the wheel set does not touch the rails, so the wheel set does not short-circuit the two rails. At this time, the position of the current car cannot be detected.

Another technical means is to deploy transponders, but the presence of transponders can only determine the position of the vehicle when the vehicle passes by.

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