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A train positioning system

A train positioning and absolute positioning technology, applied in the field of positioning, can solve problems such as loss of meaning

Active Publication Date: 2015-08-19
BEIJING JIAOTONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The reason for this problem is that the train needs to be continuously braked when the train enters the station, and it is meaningless to obtain the train position by the shaft end speed sensor, and the vehicle can only be driven by the driver's visual inspection

Method used

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Embodiment Construction

[0037] In order to make the above objects, features and advantages of the present application more obvious and comprehensible, the present application will be further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0038] refer to figure 1 , shows a structural diagram of a train positioning system of the present application, including: a passive address beacon, a vehicle-mounted code reader, and a signal processing system, wherein,

[0039] The passive address beacons include:

[0040] Absolute positioning passive address beacon, used to calibrate the absolute position information of the train;

[0041] Continuous positioning passive address beacons, used to calibrate the continuous position information and driving direction information of the train;

[0042] The vehicle-mounted code reader includes a sensor for reading the information in the passive address beacon and sending the information to the signal proces...

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Abstract

The invention provides a training positioning system, which comprises a passive address beacon, a vehicle-mounted code reader and a signal processing system, wherein the passive address beacon comprises an absolute positioning passive address beacon for calibrating absolute positional information of a train and a continuous positioning passive address beacon for calibrating continuous positional information and driving direction information of the train; the vehicle-mounted code reader comprises a sensor for reading information in the passive address beacon and transmitting the information to the signal processing system; and the signal processing system is used for receiving information transmitted by the vehicle-mounted code reader and decoding the information, judging the validity and performing coding and transmission processing.

Description

technical field [0001] The present application relates to the technical field of positioning, in particular to a train positioning system. Background technique [0002] The train positioning system is an important part of the train operation control system. A reliable train positioning system is an important guarantee for high-safety and high-efficiency operation of rail transit, especially CBTC new rail transit. [0003] Train positioning technology includes absolute positioning and relative positioning. At present, the absolute positioning in the train operation control system is mainly realized by passive transponder, and the relative position is calculated by the speed information collected by the vehicle-mounted shaft end speed sensor. [0004] Passive transponder is a very short-range radio facility. In general applications, a ground transponder is installed on the ground track bed. The transponder signal receiving antenna and information processing unit are installed...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B61L25/02
Inventor 李晓峰秦勇宋子强杨鑫
Owner BEIJING JIAOTONG UNIV
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