动车组加速度信号采集平台的设计与实现

发布时间：2019-05-12 16:25

【摘要】：中国标准化动车组,是我国第一批具有完全自主知识产权的动车组。为保证高速列车的安全舒适的运行,列车车体和转向架等位置均会加装加速度传感器。当传感器放置于车体转向架时,采集到的加速度信号,经算法处理,可以监测列车是否发生异常振动;当传感器安置于车体地平面时,采集到的加速度信号,经算法处理,可以判断车辆舒适度指标;必要时传感器也可以安装于轴承或者车体其他需要的部位,辅助以不同的算法,用以监测列车运行状态。因此,符合中国标准动车组的铁路专用产品标准的,具有准确高精度的数据采集功能,可以防差错的传输,并且有灵活多样的数据处理方式的平台应运而生。作者完成的主要工作如下:(1)完成了动车组加速度信号采集平台的总体设计方案。选用FPGA平台作为前端采集系统,配合以处理器用作后端存储和网络系统。实现了可应用于多种设备的平台型产品。(2)完成了加速度信号采集平台硬件电路的绘制和调试,并完成了该产品的样品制作,进行了静态调试和实际道路测试。(3)完成了加速度信号采集平台网络的一致性测试。使得该平台可以运用于动车组车辆网络子系统。本文设计和实现的中国标准动车组加速度信号采集平台已经在国家某单位投入使用。本平台的作用为采集车辆不同部位的加速度信息,进行初步的诊断,存储功能。然后将该数据传递给车辆总体评价体系。对于解决车体振动所带来的运行安全问题,运行舒适度的判断起到了重要的作用。
[Abstract]:China standardized EMU is the first batch of EMU with completely independent intellectual property rights in China. In order to ensure the safe and comfortable operation of high-speed trains, acceleration sensors will be installed in the train body and bogie. When the sensor is placed on the bogie, the collected acceleration signal can be processed by algorithm to monitor whether the abnormal vibration of the train occurs. When the sensor is placed on the ground plane of the car body, the acceleration signal collected can be processed by the algorithm, and the vehicle comfort index can be judged. If necessary, the sensor can also be installed in bearings or other parts of the car body, assisted by different algorithms to monitor the running state of the train. Therefore, the platform which conforms to the railway special product standard of Chinese standard EMU has the function of accurate and high precision data acquisition, can prevent error transmission, and has flexible and diverse data processing methods. The main work of the author is as follows: (1) the overall design scheme of the acceleration signal acquisition platform for EMU is completed. The FPGA platform is selected as the front-end acquisition system, and the processor is used as the back-end storage and network system. The platform product which can be used in many kinds of equipment is realized. (2) the hardware circuit of acceleration signal acquisition platform is drawn and debugged, and the sample making of the product is completed. Static debugging and actual road test are carried out. (3) the conformance test of acceleration signal acquisition platform network is completed. So that the platform can be used in EMU vehicle network subsystem. The acceleration signal acquisition platform of Chinese standard EMU designed and implemented in this paper has been put into use in a national unit. The function of this platform is to collect the acceleration information of different parts of the vehicle, carry on the preliminary diagnosis, the storage function. Then the data is transmitted to the overall evaluation system of the vehicle. It plays an important role in solving the running safety problem caused by the vibration of the car body and judging the running comfort.
【学位授予单位】：中国科学院大学(中国科学院工程管理与信息技术学院)
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：TP274.2;U266

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