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ATO speed measurement method and system

A technology for automatic driving and speed measurement of trains, applied in the field of rail transit, which can solve problems such as complex system structure, low precision, and cumbersome processing logic, and achieve high speed measurement accuracy

Pending Publication Date: 2021-12-28
通号城市轨道交通技术有限公司
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Problems solved by technology

[0005] The present invention provides an ATO speed measurement method and system for an automatic train driving system, which is used to solve the problem that the accuracy of the speed measurement method in the related art is low, which leads to a decrease in the efficiency of ATO control trains, and the redundancy of equipment leads to complex system structure, cumbersome processing logic, and low cost. too high problem

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  • ATO speed measurement method and system

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Embodiment Construction

[0043] In order to make the purpose, technical solutions and advantages of the present invention clearer, the technical solutions in the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the present invention. Obviously, the described embodiments are part of the embodiments of the present invention , but not all examples. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0044] In order to solve the problems in the related art that the accuracy of the speed measurement method is low, which leads to a decrease in the efficiency of ATO control trains, and the redundancy of equipment leads to complex system structure, cumbersome processing logic, and high cost, an embodiment of the present invention provides an automatic train driving system ATO speed measu...

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Abstract

The invention provides an ATO speed measurement method and system, and the method comprises the steps: collecting the number of first pulse signals in a current period and the time interval of adjacent pulse signals in the current period based on at least one pulse signal received by a timer, obtaining the number of the recorded second pulse signals in the last period; calculating the speed of the train in the current period based on the number of the first pulse signals, the number of the second pulse signals and the time interval of the adjacent pulse signals; and recording the number of the first pulse signals in the current period. According to the method, the speed of the train can be measured, the speed measurement precision is high, and the ATO system can control the safe and efficient operation of the train according to the target speed curve.

Description

technical field [0001] The invention relates to the technical field of rail transit, in particular to an ATO speed measurement method and system for an automatic train driving system. Background technique [0002] With the rapid development of urban rail transit and information technology, the train control system based on communication has been widely used in the urban rail transit signal system, and the automatic train operation system (Automatic Train Operation, ATO) is an important component of the train control system. In part, it can reduce the labor intensity of the driver, improve the comfort of train operation, and reduce the energy consumption of train operation. Among them, the ATO system operates under the safe speed limit based on the target speed curve and stops accurately on the platform. Therefore, the accuracy of train speed measurement Especially important for the ATO system. [0003] On the one hand, related technologies use ATO to measure speed independe...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B61L25/02
CPCB61L25/021
Inventor 李涛涛马晓梅张晨周丽华吴亮郑志军詹学海徐之栋
Owner 通号城市轨道交通技术有限公司
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