基于嵌入式的铁路电源屏网络版监测系统的设计与开发

发布时间：2018-02-01 09:22

本文关键词： 电源屏 Modbus协议嵌入式系统三层结构　出处：《吉林大学》2016年硕士论文　论文类型：学位论文

【摘要】：随着我国高速铁路的基础建设的大力推进,铁路的信息化技术发展也十分迅速,人们对信息化的需求已经越来越高,高效、纯洁的电源是铁路安全运行的关键因素。铁路的电源屏是由一台或者多台模块化的电源机柜组成,以低压电器和各种电力电子元器件组成各种供电模块,向铁路车站或者车场的信号设备提供电力的成套设备。是电力机车的动力和心脏。把智能检测技术引入电源领域,与电子技术,计算机技术相结合是未来的技术方向,也毕竟会应用越来越广泛。本文正是在这样的背景下,认真分析了铁道部的行业规范,针对铁路电源屏的监测指标,经过充分的调研和硬件选型,综合考虑成本、可靠性、稳定性、温漂等等各种因素。构建了一个监测、汇总、统计、显示、预警于一体的系统。在系统的设计方面,分为三层架构,前端是传感层,第二层是控制层,第三层是数据汇总分析层。各个层之间按照Modbus协议进行通讯。经过测试,系统具有良好的人机界面,在嵌入式操作系统的平台基础上,实现了系统需求中提到的各项指标。采集单元,数据通讯单元、RTC单元、人机接口单元、存储单元、声光报警单元均工作正常,数据采集准确。操作的逻辑性合理。实现了预期的目标。
[Abstract]:With the rapid development of high-speed railway infrastructure in China, the development of railway information technology is also very rapid, the demand for information technology has become more and more high and efficient. Pure power supply is the key factor for the safe operation of railway. The power supply screen of railway is composed of one or more modular power supply cabinets, and all kinds of power supply modules are composed of low-voltage electrical appliances and various power electronic components. A complete set of equipment that provides power to signalling equipment in railway stations or yards. It is the power and heart of electric locomotives. Intelligent detection technology is introduced into the field of power supply and electronic technology. The combination of computer technology is the technical direction in the future, and after all, it will be used more and more widely. Under this background, this paper seriously analyzes the industry standard of the Ministry of Railways, aiming at the monitoring index of the railway power supply screen. After full investigation and hardware selection, comprehensive consideration of cost, reliability, stability, temperature drift and other factors. Build a monitoring, summary, statistics, display. In the design of the system, it is divided into three layers, the front end is the sensing layer, the second layer is the control layer. The third layer is the data collection and analysis layer. Each layer communicates according to Modbus protocol. After testing, the system has a good man-machine interface, on the basis of embedded operating system platform. The data acquisition unit, data communication unit RTC unit, man-machine interface unit, memory unit, acousto-optic alarm unit all work normally. The data acquisition is accurate, the operation is logical and reasonable, and the expected goal is achieved.
【学位授予单位】：吉林大学
【学位级别】：硕士
【学位授予年份】：2016
【分类号】：TP311.52;TP274

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