重载列车脱轨无线预报警系统的开发及电磁干扰问题的研究

发布时间：2018-04-17 03:37

本文选题：无线传输 + 电磁干扰　；参考：《北京交通大学》2013年硕士论文

【摘要】：随着朔黄铁路运输需求的逐年增加,提高重载列车空载车辆的运行速度是提高重载铁路运输效率的一种有效方法,但列车提速后由于垂向力的减小易发生脱轨事故。为通过实验研究各种编组的重载铁路空载车辆,在不发生脱轨条件下的最高运行时速,本论文引入一种无线预报警系统,利用虚拟仪器技术,通过分析由检测系统得到的数据,实现对列车有脱轨运动趋势时的状态进行预警。首先,对脱轨无线预报警系统进行了总体设计,具体有系统的组成,包含车载检测系统、无线报警系统和数据处理分析系统；系统硬件设计,包含硬件的总体设计以及设备的选型；系统软件设计,包含软件的总体设计以及主系统和从系统的软件设计。其次依据相关标准,对车载检测系统进行电磁辐射发射和电磁抗扰度的试验研究。对测试结果进行理论分析,对引起辐射的地方进行改进,并给出改进后的测试结果。而后理论分析2.4GHz和460MHz频段的电波传播特性,根据校园环境的定性测量结果,选择460MHz作为无线通信的频率。最后对脱轨无线预警系统进行实验研究,进行主从系统的调试,在实验室搭建实验平台进行室内测试,并给出了在朔黄铁路的现场试验结果。本论文的研究符合朔黄铁路的实际需求,为提高空载货车的运行速度和车辆周转效率提供一种测试条件和实验基础,也为重载铁路脱轨预警的研究提供一种参考方法。
[Abstract]:With the increasing transportation demand of Shuohuang railway, it is an effective method to improve the efficiency of heavy haul railway transportation by increasing the running speed of heavy haul train. However, it is easy to derail because of the decrease of vertical force.In order to study the maximum running speed of various kinds of unloaded railway vehicles without derailment through experiments, this paper introduces a wireless pre-alarm system, using virtual instrument technology, through analyzing the data obtained from the detection system.To realize the train derailment movement trend of the state of warning.First of all, the overall design of derailment wireless pre-alarm system is carried out, including the system composition, including the on-board detection system, wireless alarm system and data processing and analysis system, the hardware design of the system,It includes the overall design of hardware and the selection of equipment, the design of system software, including the overall design of software and the software design of master system and slave system.Secondly, according to the relevant standards, the electromagnetic radiation emission and electromagnetic immunity of the vehicle detection system are studied.The theoretical analysis of the test results and the improvement of the place of radiation are carried out, and the improved test results are given.Then, the propagation characteristics of 2.4GHz and 460MHz are analyzed theoretically. According to the qualitative measurement results of campus environment, 460MHz is chosen as the frequency of wireless communication.Finally, the derailment wireless early warning system is studied experimentally, the master and slave system is debugged, the laboratory test platform is set up in the laboratory, and the field test results in Shuohuang Railway are given.The research in this paper accords with the actual demand of Shuohuang Railway, which provides a test condition and experimental basis for improving the running speed and vehicle turnover efficiency of empty freight cars, and also provides a reference method for the study of early warning of heavy haul railway derailment.
【学位授予单位】：北京交通大学
【学位级别】：硕士
【学位授予年份】：2013
【分类号】：U298.1;TN92

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