Vehicle-mounted track uneven peak value interval detection method

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Vehicle-mounted track uneven peak value interval detection method

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HE QING / LI CHENZHONG / WANG PING / GAO TIANCI / WANG QIHANG / SUN HUAKUN / MA YUSONG / LI LU / HUANG CHUANYUE / WANG YONGHUA

Abstract

The invention discloses a vehicle-mounted track uneven peak interval detection method, which comprises the steps of data acquisition, data preprocessing, model establishment and training, and prediction and evaluation to obtain an optimal confidence interval width. The method only needs to acquire three-axis vibration acceleration and angular velocity of a vehicle body and geomagnetic intensity of a position where the vehicle body is located. other sensors do not need to be installed outside the vehicle, kinetic parameters of all parts of the vehicle are not involved, the problems of high detection cost, low detection efficiency and low detection robustness in the prior art are solved, long-term high-frequency detection is achieved, the detection efficiency is remarkably improved, and the method has high adaptability and generalization ability and can be suitable for uneven peak interval detection in various track structures such as bridges, roadbeds, tunnels and the like.

本发明公开了一种车载式的轨道高低不平顺峰值区间检测方法，包括数据采集、数据预处理、模型建立及训练、预测评价得到最佳置信区间宽度，仅需要采集车体的三轴振动加速度，角速度及所在位置的地磁强度，不需要在车辆外部安装其余的传感器，且不涉及到车辆各部件的动力学参数，解决了现有存在的检测成本高、检测效率低、检测鲁棒性低的问题，实现长期高频检测，显著的提升了检测效率，本发明方法具有较强适应性和泛化能力，能够适用于桥梁、路基、隧道等各种轨道结构中的高低不平顺峰值区间检测。

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Document information

Title :

Vehicle-mounted track uneven peak value interval detection method

Additional title:

一种车载式的轨道高低不平顺峰值区间检测方法

Contributors:

HE QING (author) / LI CHENZHONG (author) / WANG PING (author) / GAO TIANCI (author) / WANG QIHANG (author) / SUN HUAKUN (author) / MA YUSONG (author) / LI LU (author) / HUANG CHUANYUE (author) / WANG YONGHUA (author)

Publication date :

2021-06-11

Type of media :

Patent

Type of material :

Electronic Resource

Language :

Chinese

Classification :

IPC:

G06F ELECTRIC DIGITAL DATA PROCESSING , Elektrische digitale Datenverarbeitung / B61K Andere Hilfseinrichtungen für Eisenbahnen , OTHER AUXILIARY EQUIPMENT FOR RAILWAYS / G01D MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE , Anzeigen oder Aufzeichnen in Verbindung mit Messen allgemein / G06N COMPUTER SYSTEMS BASED ON SPECIFIC COMPUTATIONAL MODELS , Rechnersysteme, basierend auf spezifischen Rechenmodellen