Method for realizing dynamic tracking train position in city rail traffic signal system

A technology of urban rail transit and signal system, which is applied in the field of dynamic tracking of train position in urban rail transit signal system, which can solve the problems of not being able to know the precise position of the train, affecting control and adjustment, and low detection accuracy, so as to achieve optimal line operation Efficiency, the effect of reducing work intensity

Active Publication Date: 2009-03-04
CASCO SIGNAL
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Problems solved by technology

[0003] In the signal system of traditional fixed block or quasi-movable block, the detection of train position by ITS can only be realized by some passive detection equipment, such as track circuit or axle counting
And the detection accuracy is not high. It can only be judged that the train is in a certain track circuit or axle counting section, but the precise position of the train in the section cannot be known, which affects the precise control and adjustment of ITS

Method used

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  • Method for realizing dynamic tracking train position in city rail traffic signal system
  • Method for realizing dynamic tracking train position in city rail traffic signal system
  • Method for realizing dynamic tracking train position in city rail traffic signal system

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Embodiment Construction

[0018] 1. The track is divided into logical small segments

[0019] When using passive detection equipment (track circuit / axle counting), the train position is reflected in whether one or more passive detection sections are occupied by the train, while in CBTC tracking, the train position is directly given the absolute geography of the front and rear of the train coordinate value. In order to be compatible with the above two train position identification methods, the design divides a long passive detection section into multiple logical small sections.

[0020] Such as figure 1 As shown, a passive detection section with a length of 1650m is defined as 150m as a logical section length, which can be divided into 11 logical small sections.

[0021] The selection of the logical segment length SL is based on the following rules:

[0022] Maximum SL max =1.5*train length

[0023] Min SL min Unlimited, it can be defined according to tracking accuracy requirements and processing ...

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Abstract

The invention relates to a method for implementing dynamic tracing for the position of a train in a traffic signal system of an urban railway. The method comprises the following steps: dividing an urban railway into small logical sections; defining logical sections for railway switches; performing mapping and conversion between the coordinates of the data of original position and the data of logical position; automatically switching the automatic control trace of the train based on communication to a backup inspection device of the train, and vice versa; and judging platform-approaching or platform-stopping or platform-departing based on the dynamic position tracing. Compared with the prior art, the invention can automatically switch to the backup inspection information (including the occupancy / clearance status of an axle-counting section or a railway circuit section) reported according to an interlock system, so that the train can be traced and handled. Moreover, the invention can automatically switch back to CBTC for the purpose of tracing and handling after recovering the report of exact position. The invention produces better automatic dispatch, adjustment and management, so that the workload intensities of a dispatcher and a man on duty are eased, and the operating efficiency of the railway is optimized.

Description

technical field [0001] The invention relates to providing an effective train tracking processing method for an intelligent automatic train monitoring system (ITS) in a communication-based automatic train control (CBTC) signal system, and particularly relates to realizing dynamic tracking of train positions in an urban rail transit signal system Methods. Background technique [0002] Train tracking is a basic core function of the urban rail transit ITS system. ITS's monitoring functions for trains, including train position display, control of arrival and departure, automatic adjustment of timetables, automatic route management and other automatic functions, all rely on Accurate identification and location tracking of trains. [0003] In the traditional fixed block or quasi-movable block signal system, the detection of the train position by ITS can only be realized by some passive detection equipment, such as track circuit or axle counting. And the detection accuracy is not ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B61L25/02
Inventor 钱江
Owner CASCO SIGNAL
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