基于CAN总线的车载终端及其管理系统研究

发布时间：2018-01-15 02:01

本文关键词：基于CAN总线的车载终端及其管理系统研究　出处：《天津工业大学》2016年硕士论文　论文类型：学位论文

【摘要】：随着汽车行业的的不断发展,居民汽车拥有量也大幅攀升,同时,由于道路车辆的不断增加,相关的交通问题也就越来越显著,如交通拥堵、交通事故发生率上升,车辆盗窃案件以及利用车辆作案的现象发生率也不断上升,为了解决上述问题的智能交通系统(Intelligent Transportation System, ITS)应运而生。由于GPS技术、3G无线通信技术以及GIS技术的快速发展,作为智能交通系统主要部分的车载终端监控管理系统具有重要的现实意义和价值。本课题设计的车载终端及其管理系统主要包括三部分：车载终端控制系统、中心服务器系统和管理监控中心系统。车载终端控制系统的功能是对车身CAN网络的控制,以及对车身数据的采集和转发；中心服务器系统的功能是对车载终端传来的数据进行存储,处理和转发；管理监控中心实现的功能有实时查看车身数据、电子地图功能、地理位置查询功能以及车辆实时定位监控功能等。本文首先介绍了课题研究的背景和意义,并对智能交通系统在国内外的研究现状进行了分析。其次对车载终端控制系统应用到的CAN技术规范和CANopen协议原理进行了详细介绍,并在车载网络中应用了动态优先级晋升调度算法提高了数据发送的实时性。接下来对车载终端的硬件平台进行了搭建,包括对CAN控制器以及对GPS模块和3G无线通信模块的相关设计,并且对软件部分进行了设计,即嵌入式Linux软件平台的搭建和应用程序的开发,包括应用层CANopen协议的实现和相关驱动程序的编写。最后进行管理监控系统的需求以及总体结构的设计,并利用在VC++中编写的应用程序嵌入GIS控件实现了电子地图和车辆实时定位等功能,而且还对本地数据库的结构和管理功能进行了设计第六章对系统的功能进行了测试分析,通过智能接口卡PCI5121与上位机通讯,实时监测总线数据收发状态。经调试,实现节点信息在车载网络中的顺利传输,同时验证了引入调度算法后数据传输的实时性。通过管理监控系统功能的实现,完成了车身数据查看和修改图层等操作。
[Abstract]:With the continuous development of the automotive industry, household car ownership also rose sharply, at the same time, due to the increase of road vehicles, traffic problems related are becoming more and more obvious, such as traffic congestion, traffic accident rate, vehicle theft cases and the use of the vehicle for the case rate of the phenomenon is also rising, in order to intelligent traffic to solve the problem of the system (Intelligent Transportation System, ITS) came into being. Because of the rapid development of GPS technology, 3G wireless communication technology and GIS technology, as the vehicle terminal monitoring and management system for the main part of the intelligent transportation system has important practical significance and value. The design of the vehicle terminal and its management system mainly includes three parts: vehicle the terminal control system, server management system and the monitoring center system. The vehicle terminal control system is the function of the body CAN network The control of the body, and the data acquisition and transmission; the center server system function is to store the vehicle terminal from the data processing and forwarding; management control center to realize the function of a real-time view of the data, the function of electronic map, location query function and real-time vehicle positioning and monitoring function in this paper. The research background and significance, and research status of the intelligent transportation system at home and abroad are analyzed. Secondly, a detailed introduction of the vehicle terminal control technology of CAN specification and CANopen protocol principle is applied to the system, and the application of dynamic priority scheduling algorithm in vehicle network promotion, improve the real-time data transmission. Next to the vehicle terminal hardware platform was built, including the CAN controller and the corresponding design of GPS module and 3G wireless communication module, and The software part of the design, the development of embedded Linux software platform and application program, realize including application layer CANopen protocol and device driver. Finally, management monitoring system requirements and the overall structure of the design, and the use of VC++ write in the embedded application of GIS control of the electronic map and the the real-time vehicle positioning and other functions, but also on the structure and function of the local database management is designed in Chapter sixth we have analyzed the function of the system, PCI5121 card and PC communications through intelligent interface, real-time monitoring data bus transceiver state. After debugging, to achieve a smooth transfer of information nodes in vehicular networks, and verify the real-time data transmission is introduced. Through the realization of scheduling management and monitoring system function, completed a body of data to view and modify the layer operation.

【学位授予单位】：天津工业大学
【学位级别】：硕士
【学位授予年份】：2016
【分类号】：U463.6

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