摘要：列车运行速度的不断提高，列车的超偏载是引起列车脱轨的主要因素之一。超偏载对列车的运行安全是一种直接的威胁，如果列车长时间处于超载或偏载状态下，列车的车轮及轴会因受力不匀而处于危险状态，它会导致断轴、切轴、爬轨和列车颠覆等事故的发生。为了保障行车安全,必须加强对列车超偏载的监测工作，所以列车称重监测系统的研究是十分必要的。本文设计了一个列车称重监测系统，该系统主要通过传感器得到列车原始的计量信息，利用小波分解与重构的处理，得出需要的计量数据。该系统利用动态轨道衡原理，称重传感器的原理,动态电子衡器的原理以及信号处理的方法。通过对称重系统分析得到检测信号的特点，并应用小波对检测信号预处理。本文选定了称重监测系统的总体架构，确定了切实可行的软硬件方案，并利用MATLAB平台仿真。
关键词： 列车称重；超偏载；传感器9476
Design and data processing of train weighing monitoring system
Abstract: With the continuous improvement of the train speed, the train load is one of the most important factors of train derailment. Load running safety of train is a direct threat, if the train is long time overloaded or unbalance loading condition, the wheels and the shaft of the train will be at risk due to the uneven force. It will lead to broken shaft, cutting shaft, climb the rail and the train subversion accident. In order to ensure safety, we must strengthen the monitoring work load of train, so it is very necessary to research the train weighing monitoring system. This paper introduces the design of a train weighing monitoring system, this system mainly through the sensor get the original measurement information of the train, it is using the wavelet decomposition and reconstruction process to get the measurement data needed. The system is using the dynamic track scale principle, weighing sensor principle, the principle of dynamic electronic weighing instrument and the methods of signal processing. Through the analysis of weighing system has characteristics of signal detection, and the application of wavelet in signal preprocessing detection. This paper selected the overall architecture of weighing monitoring system, the hardware and software scheme feasible was determined, and the simulation based on the MATLAB platform.
Keywords：train weighing；overload and unbalance loading；load cell
目 录
1 绪论 1
1.1 论文选题的目的和意义 1
1.2 国内外列车称重监测系统的发展现状 1
1.2.1 国内外发展现状与水平 1
1.2.2 列车称重监测系统发展状况 2
1.3 本论文的研究内容 4
2 列车称重监测系统的总体架构分析 5
2.1 转向架架构以及作用 5
2.2 称重监测系统整体架构 6
2.3 称重监测系统的软硬件 8
2.3.1 硬件结构 8
2.3.2 称重传感器 10
2.3.3 线性放大器 12
2.3.4 软件结构 12
3 列车称重监测信号的分析 14
3.1 称重系统振动特性分析 14
3.2 小波变换 15
3.2.1 小波分解与重构 15
3.2.2 小波降噪 17
3.2.3 小波分解与重构运用 17
4 列车称重监测系统信号数据处理及程序分析 18 MATLAB列车称重监测系统设计及数据处理仿真:http://www.751com.cn/zidonghua/lunwen_8211.html