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Train positioning method and system

A train positioning and train technology, which is applied in the field of train positioning methods and positioning systems, can solve the problems of poor coverage, limited practicability, and no signal, and achieves a simple and reliable method for reducing operation and maintenance costs, engineering costs, and the Effect

Inactive Publication Date: 2019-04-23
ZHUZHOU CSR TIMES ELECTRIC CO LTD
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Problems solved by technology

Therefore, in order to ensure high-precision positioning, more trackside equipment needs to be arranged, and the engineering cost and maintenance cost are huge
[0005] 2. GPS positioning type: GPS positioning is basically accurate, but not suitable for use in tunnels
Poor coverage in tunnels, or even no signal
[0006] 3. Based on wireless base station: The wireless base station method can effectively reduce the number of trackside equipment, but the positioning accuracy is limited, generally with an error of about 50-100m, and the practicability is limited
[0007] 4. Velocity measurement: Velocity measurement and positioning obtain the number of kilometers through the integration of velocity and time. The method is simple but the positioning accuracy is limited, and there are cumulative errors

Method used

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  • Train positioning method and system

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Embodiment Construction

[0032] The present invention will be further described below in conjunction with the accompanying drawings and specific preferred embodiments, but the protection scope of the present invention is not limited thereby.

[0033] Such as figure 1 As shown, the train positioning method of this embodiment includes the following steps: collecting images located along the track through image acquisition equipment, identifying specific signs in the images through image processing, and determining the position of the train according to the specific signs. The specific signs include location numbers or pole numbers such as Figure 6 shown.

[0034] In this embodiment, the specific step of determining the position of the train according to the specific sign includes: according to the specific sign identified in the image, query the line basic database to obtain the mileage data corresponding to the specific sign, and determine the train at position on the track.

[0035] In this exampl...

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Abstract

The invention discloses a train positioning method and system. The method comprises the following steps: acquiring an image located on a rail line through image acquisition equipment and identifying aspecific marker in the image through image processing; determining the position of a train according to the specific marker. The train positioning method and system, disclosed by the invention, the advantages of no dependence on wayside equipment, no influences caused by tunnels, high positioning precision, simple method, low engineering and maintenance cost and the like.

Description

technical field [0001] The invention relates to the technical field of rail transit vehicle position monitoring, in particular to a train positioning method and a positioning system. Background technique [0002] With the development of social economy, rail transit has become an increasingly important part of society, and "safety, speed, readiness, and comfort" have become the goals of rail transit operation. Train positioning is a very important link in the track operation system. [0003] At present, there are mainly the following methods for train positioning: [0004] 1. Response type (including RFID): The position of the train is calculated by the speed measuring equipment, and the distance of the train is calculated, and the installation position of the transponder is calculated and corrected, but the positioning accuracy of the system depends on the installation density of the transponder on the line and the speed of the on-board equipment. error. Therefore, in ord...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B61L25/02G06K9/00G06K9/20
CPCB61L25/02G06V20/582G06V10/141G06V2201/09G06V30/10
Inventor 邹翔贺文张敏王俊平李建桥陈胜蓝黄铃王杰张术毛慧华
Owner ZHUZHOU CSR TIMES ELECTRIC CO LTD
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