Distance calculation implementation method of shunting operation key points in station track on basis of BDS and STP

Abstract

The invention discloses a distance calculation implementation method of shunting operation key points in a station track on the basis of BDS and STP. A current homemade mature Beidou navigation system(BDS) and a differential positioning technology are adopted, and the positions of a shunting locomotive, shunting team operation staff and a connecting-hanging point are calculated accurately; according to the trajectory characteristic of the STP system in shunting operation, the distance between the key protective point and the front end of a train set during movement in the shunting operation process is calculated, the accurate distance is provided for the STP system, and the train controlled limit speed is calculated and serves as a train controlled basis. Meanwhile, the position and operation condition information of the operation shunting team members in the field can be effectively grasped by direct viewing, vehicles of the station track in a station are evaluated, then marshallingparking capacity calculation is performed, and the truest station track parking capacity information is provided for the station scheduling.

Description

technical field [0001] The invention relates to the technical field of rail transit, in particular to a method for realizing distance calculation of key points of shunting operation in a track based on BDS and STP. Background technique [0002] During the on-site shunting operation, when the shunting machine is pushing the operation train into the lane, when the front end of the train passes over the lane protection signal, it becomes particularly important to obtain the distance from the vehicle attachment point in the lane up. [0003] Since the front end of the operation train is generally a variety of vehicles, there are no conditions for installing vehicle-mounted fixed equipment. At present, the following schemes are mainly adopted: [0004] 1) During the shunting operation in the station, the shunting crew can only rely on the staff of the shunting crew to look out at the front of the moving train to visually measure the distance to the stop, and then use the hand-he...

AI Technical Summary

Problems solved by technology

However, the disadvantages are as follows: firstly, due to the limitation of technical conditions and calculation conditions, it is required that the track circuit of the stock track must be complete, and in the field, there is often only a section of track circuit in the stock track of the parking line, so the calculation is invalid for safety considerations; secondly, During the process from the completion of the splitting operation until re-entering the track, no other locomotives outside the system can enter the track, otherwise, the original recorded position will become invalid

However, due to complex site conditions such as curves in the track area of ​​the railway station, people walking in the track or obstructed by obstacles, and the distance between adjacent tracks is small, the reflection of light or electromagnetic waves by infrared rays, lasers, radars, etc. The technical means of distance measurement by signal is invalid

There are always interference factors that cannot be removed, which will affect the validity and credibility of the ranging data

[0007] It can be seen that there is currently no effective solution to obtain the data of the distance between the front end of the train and the front protection point. Therefore, there is an urgent need for an effective and reliable method and means to measure the distance during the linking process of the track.

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