Train operation safety online monitoring method based on vibration acceleration

A vibration acceleration and safe operation technology, which is applied in the direction of railway vehicle testing, etc., can solve the problems of expensive derailment online monitoring devices, poor real-time performance, and many sensors, and achieve the effect of comprehensive reflection of derailment status, fast calculation speed and convenient installation

Active Publication Date: 2018-04-27
江苏路航轨道交通科技有限公司
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Problems solved by technology

[0012] (1) The on-line derailment monitoring device is expensive; (2) The on-line derailment monitoring device is not well repaired; (3) The accuracy of the on-line derailment moni

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  • Train operation safety online monitoring method based on vibration acceleration
  • Train operation safety online monitoring method based on vibration acceleration
  • Train operation safety online monitoring method based on vibration acceleration

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Embodiment Construction

[0052] In order to make the object, technical solution and advantages of the present invention clearer, the technical solution of the present invention will be further described below in conjunction with examples.

[0053] Such as figure 1 As shown, the embodiment of the present invention provides a method for online monitoring of train operation safety based on vibration acceleration, comprising the following steps:

[0054] Step (1): Obtain the vibration acceleration data of the wheels on the train within a certain period of time.

[0055] In the specific implementation process, there are many ways to obtain vibration acceleration data, and the common method is to install an acceleration sensor. Preferably, in the embodiment of the present invention, an acceleration sensor is installed on the left and right axle boxes of the train, and then the vibration acceleration data of the wheels on the train is obtained through the acceleration sensor.

[0056] After step (1) is com...

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Abstract

The invention provides a train operation safety online monitoring method based on vibration acceleration. The method comprises the following steps that the vibration acceleration data of the wheels onthe train within a certain period of time are acquired; the wheel uplift amount and the wheel side-sway amount of the train are acquired based on the vibration acceleration data within the period oftime; whether the peak value of acceleration and the absolute value of acceleration of the vibration acceleration data within the period of time and the wheel uplift amount and the wheel side-sway amount simultaneously meet the respective preset threshold is judged so as to acquire the judgment result; and derailing trend judgment is performed and alarming is performed if the judgment result is yes. The train operation safety online monitoring method based on vibration acceleration is low in computational burden, fast in computational speed and suitable for online monitoring; and only the acceleration sensor is used so that the cost is low and installation is convenient. Four derailment indicators are applied to judge train derailing so that the comprehensiveness is high and reflection ofthe derailing state is more comprehensive.

Description

technical field [0001] The invention relates to the technical field of rail traffic monitoring, in particular to an online monitoring method for train operation safety based on vibration acceleration. Background technique [0002] With the continuous development of my country's social economy, my country's high-speed rail construction has also entered a period of rapid development, and the speed of my country's high-speed rail has gradually increased from 200 km / h to 350 km / h. While increasing the speed per hour, preventing high-speed rail derailment has become the top priority for the safe operation of high-speed rail. [0003] At present, various countries are actively carrying out research on online monitoring of train derailment, but there is no very effective monitoring product and monitoring method at present. [0004] Hong Jieren of Japan proposed a method for monitoring train operation using MEMS acceleration sensors and angular acceleration sensors, which is used f...

Claims

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Application Information

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IPC IPC(8): G01M17/08
CPCG01M17/08
Inventor 林建辉陈双喜陈春俊
Owner 江苏路航轨道交通科技有限公司
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