嵌入式车载终端的研究与设计

发布时间：2018-06-01 04:50

本文选题：CAN总线 + S3C2440A　；参考：《太原科技大学》2013年硕士论文

【摘要】：计算机、网络通信、电子等信息技术的高速发展，带来了移动车辆的远程监测技术的一场新的革命，特别是近年来电子类手持设备、移动车载电子设备越来越广泛。嵌入式技术为它们提供了极佳的解决方案，使开发出的高性能和低成本的嵌入式车载终端成为可能。本系统是远程故障诊断系统的子系统——远程状态监测子系统，其数据监测的精度和数据传输的实时性直接影响到系统性能的好坏。因此，本文提出并设计了一种基于嵌入式车载终端的远程状态监测系统，以实验室的现有条件：CAN总线数据采集板MSG-TOP808、主控制器模块TQ2440和GPRS模块BENQ M22为实验平台。其主要工作如下： (1)CAN数据采集部分：通过对CAN2.0B协议的研究，组建了3个CAN节点的数据采集网络：2个节点分别采集和1个节点作为汇聚节点和负责CAN-RS232协议转换。 (2)主控制器端的平台搭建：该平台采用S3C2440A芯片作为核心微处理器，嵌入式Linux操作系统作为软件开发平台，主要包括结合板载硬件成功移植引导加载程序Bootloader、Linux内核，根文件系统的构建以及LCD帧缓冲显示设备Frame buffer、触摸屏、A/D转换器、串口和以太网通讯驱动程序的开发；Linux串口程序设计；熟悉使用GPRS模块BENQ M22内置AT指令集，编写串口控制GPRS模块与Internet网络的互联；嵌入式Qt4的车载终端的用户界面UI；开辟2个线程分别控制数据采集和GPRS无线传输。 (3)搭建远程监测平台：使用Apache WEB服务器Tomcat7.0+JDK7+JSP+SQLSERVER2000开发一个远程数据监测平台，提供一个易于操作、实用性强和方便友好的用户界面。本系统经过反复测试，满足预期的功能。最后还对本系统进行了系统评价、总结和展望以及后期需要的改进意见。本系统通用性较强，，更易扩展其他功能。
[Abstract]:With the rapid development of information technology, such as computer, network communication, electronics and so on, it has brought a new revolution in the remote monitoring technology of mobile vehicles. Especially in recent years, electronic handheld devices are more and more widely used in mobile vehicles. The embedded technology provides them with excellent solutions and makes it possible to develop high performance and low cost embedded vehicle terminals. This system is a subsystem of remote fault diagnosis system-remote state monitoring subsystem. The accuracy of data monitoring and the real-time of data transmission directly affect the performance of the system. Therefore, a remote state monitoring system based on embedded vehicle terminal is proposed and designed in this paper. The experimental platform is MSG-TOP808, the main controller module TQ2440 and GPRS module BENQ M22, which is based on the existing condition of the laboratory: can bus data acquisition board MSG-TOP808. Its main tasks are as follows: In the part of can data acquisition: through the research of CAN2.0B protocol, the data acquisition network of three CAN nodes is established: two nodes are collected and one node is the convergent node and is responsible for the conversion of CAN-RS232 protocol. This platform uses S3C2440A chip as the core microprocessor and embedded Linux operating system as the software development platform. The Construction of the Root File system and the Development of Frame buffer display device Frame buffer, Touch screen / A / D Converter, Serial Port and Ethernet Communication driver programming, familiar with GPRS Module BENQ M22 built-in AT instruction set, Write serial port control GPRS module and Internet network interconnection; embedded Qt4 vehicle terminal user interface UI; open two threads respectively to control data acquisition and GPRS wireless transmission. Build a remote monitoring platform: use Apache WEB server Tomcat7.0 JDK7 JSP SQLSERVER2000 to develop a remote data monitoring platform to provide a user interface which is easy to operate, practical and friendly. After repeated tests, the system meets the expected function. Finally, the system is systematically evaluated, summarized and prospected. The system is more versatile and easy to extend other functions.
【学位授予单位】：太原科技大学
【学位级别】：硕士
【学位授予年份】：2013
【分类号】：U463.6;TP368.1

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