Train Positioning Correction Method Based on Virtual Transponder

A train positioning and transponder technology, which is applied to satellite radio beacon positioning systems, instruments, railway signals and safety, etc., can solve problems such as exceeding and expanding the capture radius of virtual transponders, and failing to provide the function of train positioning correction confidence interval. , to achieve the effect of reducing equipment costs and meeting the requirements of system positioning accuracy

CN111071302BActive Publication Date: 2021-11-16CRSC RESEARCH & DESIGN INSTITUTE GROUP CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Publication Date
2021-11-16

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Abstract

The present invention provides a method for correcting train positioning based on a virtual transponder. In the method, a plurality of circular areas with the positioning accuracy of the positioning system as the radius and the distance between adjacent circle centers are used as the capture range of a single virtual transponder , the correction method includes the steps of: determining the total number of the circular area; performing positioning capture of the single virtual transponder according to the actual position positioned by the positioning system, determining the circular area where the position is located and triggering the corresponding virtual Transponder messages, and at the same time provide the value of the effective confidence interval for positioning correction, the invention provides a relatively accurate and reliable confidence interval result, and truly realizes the effective replacement of the physical transponder.
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Description

technical field

[0001] The invention belongs to the field of train operation control, in particular to a train positioning correction method based on a virtual transponder. Background technique

[0002] Train operation control refers to ensuring the safe, high-speed and efficient operation of the train by completing the interval control and speed control of the train. Among them, the identification of the confidence interval of the train position is an important basic link.

[0003] At present, my country's high-speed railway train control system is based on physical balises for train positioning, and several single-entity balises (minimum 1, maximum 8) need to be associated as a balise group. The physical balise group is laid and installed along the railway at key positions or at a certain distance according to engineering design requirements, and balise message information is stored in the physical balise.

[0004] When the train passes by the position of the entity balis...

Examples

Embodiment Construction

[0049] In order to make the objects, technical solutions and advantages of the present invention more apparent, exemplary embodiments according to the present invention will be described in detail below with reference to the accompanying drawings. Apparently, the described embodiments are only some embodiments of the present invention, rather than all embodiments of the present invention, and it should be understood that the present invention is not limited by the exemplary embodiments described here. Based on the embodiments described herein, all other embodiments obtained by those skilled in the art without creative effort shall fall within the protection scope of the present invention. In this specification and the drawings, substantially the same elements and functions will be denoted by the same reference numerals, and repeated descriptions of these elements and functions will be omitted. Also, descriptions of functions and constructions that are well known in the art may...