Guideway inspection is of great significance to the operation safety and riding quality of a commercial high-speed maglev transportation system. When analyzing guideway inspection data, it is important to obtain the location information for each piece of raw data and convert it from the time domain to the spatial domain for the analysis afterward. Previous studies have used the method of adding additional hardware such as GPS (global positioning system) receivers, LRF (location reference flag) readers, or onboard CAN (controller area network) bus adaptors to obtain location information. This paper presents a novel method for indirectly obtaining the location information via the use of data from the levitation and guidance control sensors perpendicular to the longitudinal direction to extract the characteristic information from the track. The method can be used for a long stator linear motor-driven maglev system and similar contactless rail transit systems. The results showed that the method could accurately identify the required location information in each stator tooth during the entire operation simultaneously with the operating information such as train velocity, direction, and track ID, without additional hardware installation and vehicle network connection. Thus, it could improve the pertinence of the results of guideway inspection equipment, and at the same time, facilitate the miniaturization and independence of guideway inspection equipment.

中文翻译：

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磁悬浮列车中基于车载传感器的新型轨道检测定位方法的研究

导轨检查对于商业高速磁悬浮运输系统的运行安全和乘坐质量具有重要意义。在分析导轨检查数据时，获取每条原始数据的位置信息并将其从时域转换为空间域以进行后续分析非常重要。先前的研究已使用添加其他硬件（例如GPS（全球定位系统）接收器，LRF（位置参考标记）读取器或机载CAN（控制器局域网）总线适配器）的方法来获取位置信息。本文提出了一种新颖的方法，该方法通过使用垂直于纵向的来自悬浮和制导控制传感器的数据间接获取位置信息，从而从轨道中提取特征信息。该方法可用于长定子线性电动机驱动的磁悬浮系统和类似的非接触式轨道交通系统。结果表明，该方法可以在不增加硬件安装和车辆网络连接的情况下，准确地识别出整个运行过程中每个定子齿中所需的位置信息以及列车速度，方向和轨道ID等运行信息。因此，它可以提高导轨检查设备结果的相关性，同时有利于导轨检查设备的小型化和独立性。结果表明，该方法可以在不增加硬件安装和车辆网络连接的情况下，准确地识别出整个运行过程中每个定子齿中所需的位置信息以及列车速度，方向和轨道ID等运行信息。因此，它可以提高导轨检查设备结果的相关性，同时有利于导轨检查设备的小型化和独立性。结果表明，该方法可以在不增加硬件安装和车辆网络连接的情况下，准确地识别出整个运行过程中每个定子齿中所需的位置信息以及列车速度，方向和轨道ID等运行信息。因此，它可以提高导轨检查设备结果的相关性，同时有利于导轨检查设备的小型化和独立性。