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A New Approach for a Train Axle Telemetry System

机译：火车轴遥测系统的一种新方法

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摘要

The application of a telemetry system for train axle fatigue monitoring is analyzed in this paper. Monitoring of the axle bending deformation at critical points is of great importance for both high speed and freight trains. The fatigue life of the axle may be significantly reduced due to accidental peak loads. Commonly used telemetry systems require special pick-ups for transmitting electrical power to the electronics placed on the rotating axle and for transferring back sensor signals. Inductive power transfer is performed through a high frequency magnetic field linking a rotating winding. Sensor signals are modulated on top of the power signal and transferred at an even higher frequency to be immune to the inductive magnetic field. In this paper a new approach for an inductive power transfer system, completely decoupled from the transfer of sensor signals, is analyzed. The layout of the energy transmission system has been simplified with respect to traditional telemetry systems and its efficiency is increased. Also the immunity of the measurements against the power magnetic field, the distance of the power head and all the electrical noise induced results have been improved. The combination of a simple power induction system, a fast data processing unit and a low power RF data transmission system lead to an easy and reliable telemetry system for train axle monitoring.
机译：本文分析了遥测系统对火车轴疲劳监测的应用。在关键点处监测轴弯曲变形对于高速和货运列车非常重要。由于意外的峰值负载，轴的疲劳寿命可以显着降低。常用的遥测系统需要特殊的拾取器，用于向放置在旋转轴上的电子设备传输电力，并用于传输反向传感器信号。通过连接旋转绕组的高频磁场进行电感电力传输。传感器信号在电源信号的顶部调制并以甚至更高的频率传送到感应磁场的甚至更高的频率。本文分析了一种新的电感电力传输系统的方法，完全与传感器信号传递的传输分离。相对于传统的遥测系统简化了能量传输系统的布局，其效率增加。而且还改善了电源头的距离和所有电噪声诱导的结果的测量的抗扰度。简单的功率感应系统，快速数据处理单元和低功率RF数据传输系统的组合导致用于列车轴监测的简单可靠的遥测系统。

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