A method and system for precise positioning of rail cars

A precise positioning and positioning system technology, applied in the field of precise positioning methods and systems for rail vehicles, can solve problems such as inability to achieve efficient positioning and operations, high installation costs and product costs, and low positioning accuracy

Active Publication Date: 2018-08-14
株洲太昌电子信息技术股份有限公司
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  • Summary
  • Abstract
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] When the rail car is working, it is necessary to monitor the position of the rail car in real time through the positioning system. The existing positioning monitoring system mainly obtains the coordinates of the position of the satellite receiving device by installing a GNSS satellite receiving device on the rail car. 15m to 20m or longer, in the specific location of the rail car, only a single point of the installation position of the satellite receiving device is used to represent the position of the entire rail car, the positioning accuracy is low, and it is even impossible to achieve effective positioning and operation.
If two or more positioning devices are respectively installed on the car body of the rail car, the installation cost and product cost are relatively high

Method used

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  • A method and system for precise positioning of rail cars
  • A method and system for precise positioning of rail cars
  • A method and system for precise positioning of rail cars

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Embodiment Construction

[0026] The present invention will be described in detail below in conjunction with the accompanying drawings. The description in this part is only exemplary and explanatory, and should not have any limiting effect on the protection scope of the present invention. In addition, those skilled in the art can make corresponding combinations of features in the embodiments in this document and in different embodiments according to the descriptions in this document.

[0027] The method embodiment of the present invention is as follows, a kind of rail vehicle precise positioning method comprises the following steps:

[0028] Obtain the position coordinates (j A ,w A );

[0029] Obtain the angle θ between the rail car and the geomagnetic line through the electronic compass;

[0030] Using the position coordinates (j A ,w A ) and the included angle θ between the rail car and the geomagnetic line, and determine the real-time coordinates of the front and / or rear of the rail car throug...

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Abstract

The invention provides a rail car accurate positioning method. The method comprises the steps that a positioning system is used for acquire the position coordinate of a positioning and receiving device arranged on a railway car; an electronic compass is used to acquire the angle theta between the rail car and a geomagnetic line; the position coordinate (jA, wA) and the angle theta between the rail car and the geomagnetic line are used to determine the real-time coordinate of the head and / or the tail of the rail car through a compute element. The head and / or the tail of the rail car can be accurately positioned. An additional satellite receiving device is not required. The complexity and the production cost of the positioning system are reduced. The invention further provides a rail car accurate positioning system to accurately position the head and / or the tail of the rail car.

Description

technical field [0001] The invention relates to the detection field, in particular to a precise positioning method and system for a rail vehicle. Background technique [0002] Rail cars (including trailers) are the main means of transportation for railway equipment maintenance, overhaul, material transportation, infrastructure construction and other construction departments to perform tasks. There are two types of railcars: heavy and light. Those that can be withdrawn from the line by passengers at any time are called light railcars; those that cannot be withdrawn from the line by passengers at any time are called heavy railcars. Its body is longer and can travel in both directions. [0003] When the rail car is working, it is necessary to monitor the position of the rail car in real time through the positioning system. The existing positioning monitoring system mainly obtains the coordinates of the position of the satellite receiving device by installing a GNSS satellite r...

Claims

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Application Information

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Patent Type & AuthorityPatents(China)
IPC IPC(8): G01S19/48B61L25/02
CPCB61L25/025B61L2205/04G01S19/48
Inventor郭香华何志国李挺
Owner株洲太昌电子信息技术股份有限公司