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Train speed measuring method, processor and train speed measuring system

A train speed measurement and speed measurement technology, applied in the field of rail transit, can solve problems such as speed measurement failure

Active Publication Date: 2016-03-02
TRAFFIC CONTROL TECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0007] Aiming at the defects existing in the prior art, the present invention proposes a train speed measurement method, a processor and a train speed measurement system to solve the problems caused by sporadic and irregular radar short-term speed measurement failures and wheel idling in the existing rail transit system. speed failure problem

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Embodiment Construction

[0050] The following will clearly and completely describe the technical solutions in the embodiments of the present disclosure with reference to the accompanying drawings in the embodiments of the present disclosure. Obviously, the described embodiments are only some of the embodiments of the present invention, 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 making creative efforts belong to the protection scope of the present disclosure.

[0051] It should be noted that the speed measurement error of the radar mentioned in each disclosed embodiment of the present invention and the speed measurement value error of the wheel grating speed sensor all obey the normal distribution.

[0052] Such as figure 1 As shown, an embodiment of the present disclosure provides a method for measuring train speed, the method including the following steps S1 to S4:

[0053] S1, based on the overa...

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Abstract

The invention belongs to the rail transit technical field and provides a train speed measuring method, a processor and a train speed measuring system. The method includes the following steps that: the speed measuring estimated value of a train at the current period is calculated based on the overall speed measuring value of the train at a last period and the acceleration of the train at the last period; the acceleration of the train is acquired by an acceleration sensor group installed on the train; the speed measuring values of radars of a radar group installed on the train at the current period and the speed measuring values of cylindrical grating speed sensors of a cylindrical grating speed sensor group installed on the train at the current period are obtained; the error estimated values of the speed measuring values of the radars at the current period and the error estimated values of the speed measuring values of the cylindrical grating speed sensors at the current period are calculated based on the speed measuring estimated value of the train at the current period; and the overall speed measuring value of the train at the current period is calculated according to the error estimated values of the speed measuring values of the radars and the error estimated values of the speed measuring values of the cylindrical grating speed sensors. With the train speed measuring method, the processor and the train speed measuring system of the invention adopted, the reliability and accuracy of speed measurement of the train can be improved.

Description

technical field [0001] The invention relates to the technical field of rail transit, in particular to a train speed measurement method, a processor and a train speed measurement system. Background technique [0002] In order to alleviate the congestion of passenger traffic during peak hours, punctuality and shortening the interval between trains have become the development goals. With the rapid development of urban rail transit, the track surface of subway lines is becoming more and more complicated. While shortening the interval between trains, there will be problems safe operation issues. In order to ensure the safe operation of trains, the signal system needs to be highly automated and intelligent. [0003] In rail transit, the signal system guarantees the safe operation of rail transit through its core equipment, the Automatic Train Operation (ATP) system, and the realization of all protection functions of the on-board ATP system must rely on reliable speed measurement....

Claims

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Application Information

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IPC IPC(8): G01P3/36G01S13/60
CPCG01P3/36G01S13/60
Inventor 张强刘波
Owner TRAFFIC CONTROL TECH CO LTD
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