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Implementing method of virtual transponder

An implementation method and transponder technology, applied in the field of virtual transponders, can solve problems such as high cost of transponders, high cost, resistance to ETCS promotion, etc., and achieve the effects of cost saving, reliable positioning accuracy, and reliable train position information

Inactive Publication Date: 2010-09-01
BEIJING JIAOTONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This brings high costs, such as the deployment of European transponders on a 2500km long railway, which costs up to 10 million euros
Therefore, the high cost of transponders has brought resistance to the promotion of ETCS

Method used

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  • Implementing method of virtual transponder
  • Implementing method of virtual transponder
  • Implementing method of virtual transponder

Examples

Experimental program
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Embodiment Construction

[0030] The specific implementation manner of the present invention will be described in detail below in conjunction with the accompanying drawings and examples.

[0031] The definition of the virtual balise is as follows: the virtual balise simulates a balise that is actually placed on the track. When the train runs to a reference point on the track, the virtual balise sends a position information to the balise transmission module (BTM). This information is exactly the same as that sent by transponders in real orbit. The virtual transponder is composed of three modules: the positioning unit module, the security discrimination module, and the transponder (VB) module. Such as figure 1 Shown:

[0032] The positioning unit module described therein includes a GNSS receiver and a Kalman filter, which performs Kalman filtering on the positioning information of the receiver after receiving the GPS signal.

[0033] The safety judgment module includes two modules of safety judgment a...

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Abstract

The invention relates to a method for implementing precise positioning by using a transponder in a railway system, in particular to a low-cost implementing method of a virtual transponder. The virtual transponder is used for realizing the real-time positioning. The method comprises the steps of: setting certain capturing areas by taking the point where the virtual transponder exists as a centre; capturing a train when the train passes through the capturing areas of the point where the virtual transponder exists; and carrying out map matching algorithm to obtain the precise positions of the train on a map. The corresponding functions of the transponder can be realized by the system, so the aims of saving cost and guaranteeing running safety are achieved.

Description

technical field [0001] The invention relates to a method for realizing the use of a virtual transponder in a railway system, in particular to a method for realizing a virtual transponder by utilizing satellite positioning technology, and finally realizing train positioning at a relatively low cost. Background technique [0002] The transponder is an important signal infrastructure, which is widely used in foreign railways, subways, and urban light rail transit. The transponders were preserved and played a very important role. Only tens of thousands of ground transponders were used in the train control system in France. In China, the information transmission between the ground and locomotives mainly relies on continuous track circuits, which can be used to continuously transmit train control information, but the amount of information is seriously insufficient, and there are only 18 types of low-frequency information. For ramps, curves, turnouts, bridges, etc. The speed limit...

Claims

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Application Information

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IPC IPC(8): B61L25/02G01S19/50
Inventor 上官伟蔡伯根王剑陈德旺
Owner BEIJING JIAOTONG UNIV
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