基于嵌入式Linux的汽车全数字仪表界面的设计

发布时间：2018-03-09 13:25

本文选题：嵌入式Linux　切入点：汽车仪表　出处：《苏州大学》2012年硕士论文　论文类型：学位论文

【摘要】：汽车仪表是汽车在行驶过程中提供给驾驶员最直观、最重要的信息交流窗口，，同时对汽车的安全和经济行驶起着至关重要的作用。随着嵌入式系统的硬件平台技术和软件应用的发展不断趋于成熟，汽车仪表系统的设计开始采用了嵌入式GUI技术。本课题结合嵌入式Linux操作系统和嵌入式GUI技术，设计了一个基本汽车全数字仪表的界面，并对车速表、转速表、燃油表和水温表的界面进行进一步的设计。为了观看汽车仪表界面在嵌入式硬件平台上的显示和运行效果，最后进行了模拟测试程序的设计。本课题的设计是基于性价比较高的S3C2440为核心处理器的嵌入式硬件平台，以嵌入式Linux为操作系统，以Qt/Embedded为嵌入式GUI开发工具，以3.5寸LCD液晶屏作为汽车仪表系统的显示终端。在系统架构分析的基础上，详述了汽车全数字仪表界面的硬件平台；搭建嵌入式Linux操作系统，主要包括BootLoader移植、Linux Kernel的裁剪与移植、根文件系统的定制；构建Qt开发环境，主要是PC开发环境和Qt交叉编译环境的搭建，完成Qt/Embedded在Mini2440上的移植；添加嵌入式Linux系统下的相关硬件驱动程序，主要是LCD显示和触摸屏驱动程序。在软硬件平台都搭建好的基础上，进行汽车仪表终端界面的开发。
[Abstract]:The automobile instrument is the most direct and important information communication window for the driver in the process of driving, and it plays an important role in the safety and economic driving of the vehicle at the same time. With the development of hardware platform technology and software application of embedded system, embedded GUI technology has been adopted in the design of vehicle instrument system. This paper combines embedded Linux operating system with embedded GUI technology. The interface of a basic automobile digital instrument is designed, and the interface of speedometer, tachometer, fuel meter and water thermometer is further designed. Finally, the simulation test program is designed. The design of this project is based on S3C2440 with high performance-price ratio as the core processor, the embedded Linux as the operating system and Qt/Embedded as the embedded GUI development tool. This paper takes 3.5-inch LCD LCD screen as the display terminal of the automobile instrument system. Based on the analysis of the system architecture, the hardware platform of the all-digital instrument interface is described, and the embedded Linux operating system is built. It mainly includes cutting and transplanting BootLoader Kernel, customizing root file system, constructing QT development environment, mainly building PC development environment and QT cross-compiling environment, completing Qt/Embedded transplantation on Mini2440. Add the related hardware drivers under embedded Linux system, mainly LCD display and touch screen driver. On the basis of the hardware and software platform, we develop the terminal interface of automobile instrument.
【学位授予单位】：苏州大学
【学位级别】：硕士
【学位授予年份】：2012
【分类号】：TP368.1

【引证文献】