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Method and device for acquiring train position information

A technology of location information and trains, applied in the field of rail transit, can solve problems such as high maintenance costs, low bandwidth, and difficulty in ensuring positioning performance

Active Publication Date: 2022-03-08
TRAFFIC CONTROL TECH CO LTD
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  • Abstract
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  • Claims
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Problems solved by technology

[0004] The above-mentioned existing positioning technology has the following defects: the transmission distance based on UWB positioning technology is short, and the transmission bandwidth is low at the same time, it is difficult to carry a large amount of information, and most of them exist in the form of fixed-point positioning
Radar-based speed measurement and positioning technology is easily affected by the outside world. Due to the characteristics of train shaking and jitter, inherent delay of sensors, and non-parallel tracks, it is difficult to guarantee the positioning performance of radar-based speed measurement and positioning in long-distance conditions, resulting in positioning deviation. The balise-based train positioning method requires intensive deployment of balises on the ground, and the positioning accuracy is related to the density of the ground balise deployment, resulting in high maintenance costs for the balise-based train positioning method

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  • Method and device for acquiring train position information
  • Method and device for acquiring train position information
  • Method and device for acquiring train position information

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Embodiment Construction

[0043] In order to make the purpose, technical solutions and advantages of the embodiments of the present disclosure clearer, the technical solutions in the embodiments of the present disclosure will be clearly and completely described below in conjunction with the drawings in the embodiments of the present disclosure. Obviously, the described embodiments It is a part of the embodiments of the present disclosure, but not all of them. Based on the embodiments in the present disclosure, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present disclosure.

[0044] In addition, the term "and / or" in this article is only an association relationship describing associated objects, which means that there may be three relationships, for example, A and / or B, which may mean: A exists alone, A and B exist at the same time, There are three cases of B alone. In addition, the character " / " in this article ...

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Abstract

Embodiments of the present disclosure provide a method, device, device, and computer-readable storage medium for acquiring position information of a train. The method includes that the 5G base station synchronously sends a fusion signal including a positioning signal and a communication signal; the train terminal demodulates the fusion signal to obtain the communication signal; the train terminal, according to the communication signal and the fusion signal, acquiring the positioning signal; the train terminal acquires the position information of the train according to the positioning signal. In this way, the position of the train can be accurately located.

Description

technical field [0001] Embodiments of the present disclosure generally relate to the technical field of rail transit, and more specifically, relate to a method and an apparatus for acquiring position information of a train. Background technique [0002] In the field of rail transit technology, the positioning technology of trains is particularly important. [0003] Existing positioning technologies include: (1) Ultra-Wide Band (UWB for short) positioning technology: position estimation is realized by transmitting and receiving large-bandwidth pulses. Compared with traditional narrow-band technology, UWB positioning technology has transmission It has the advantages of high speed and good anti-multipath effect. (2) Speed ​​measurement and positioning technology based on radar (for example: millimeter-wave radar): the principle of radar speed measurement is to use the frequency shift between the emitted electromagnetic wave and the received electromagnetic wave to calculate th...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B61L25/02
CPCB61L25/025
Inventor 张春雨余浩旸
Owner TRAFFIC CONTROL TECH CO LTD