【作者】 李晓侠；

【导师】 彭楚武；

【作者基本信息】 湖南大学 ， 控制理论与控制工程， 2008， 硕士

【摘要】 嵌入式车载导航系统是把全球定位技术、地理信息技术、通信技术和嵌入式计算机技术综合在一起的系统,它能够实时、高速地向驾驶员提供导航定位、地理信息等服务。它的应用对改善城市交通状况、促进行车安全和提高道路通行效率有极其重要的意义。本文针对移动式工程机械智能监控系统的要求提出了一个将导航定位技术和嵌入式Linux系统相结合,设计基于嵌入式Linux的车载导航系统的方案,在ARM9平台上移植嵌入式Linux操作系统,然后基于此平台实现车载导航系统。在整个系统中,硬件系统是基础,嵌入式Linux操作系统是软件的运行平台,它们在车载导航系统中占有重要的地位。因此本文对导航系统的硬件平台及嵌入式Linux操作系统进行了重点研究。论文首先简要介绍了车载导航系统的基本原理及其在国内外的现状与发展前景,并描述了本文研发的主要工作;然后根据车载定位导航系统的要求设计系统架构;开发了基于ARM9(S3C2410A)的系统硬件平台,重点分析了电源、时钟、SDRAM、Flash、以太网、触摸屏、串口、USB和音频等接口电路原理并给出了设计结果;在对嵌入式Linux操作系统进行较为深入研究的基础上,详细介绍了Bootloader、Linux内核和设备驱动程序的开发过程,完成了U-Boot移植、设备驱动程序的编写和内核的编译。由于嵌入式GUI程序设计是实现良好的人机交互界面的重要途径,因此对这部分内容的研发情况也进行了相当篇幅的介绍。本文所研发的嵌入式车载导航系统经实验室调试,结果表明基本实现了设计要求,且运行稳定可靠,具有一定的推广应用价值。更多还原

【Abstract】 The Embedded Vehicle Vavigation System is a system well intergrated with globle position technology, geographic information technology,communication technology and embedded technology.It offers many kinds of important services,which include navigatin and geography information,timely and efficiently for a driver.Its application greatly alleviated the trouble of city transportation system and improved the efficiency of road.Aiming at the demand of intelligent monitoring system of the construction machinery, the paper presents a method to design a Vehicle Navigation System based on the embedded Linux system,combining the GPS location technology and embedded system technology.First,we transplanted the embedded Linux system to the ARM9 platform,then realized the functions of location and navigation in this Vehicle Navigation System.In a system,hardware is the basis,and the embedded Linux operating system is the platform for software.They played the important roles in this Vehicle Navigation System.Therefore this paper focus on the study of hardware platform and embedded Linux operating system in the navigation system.Firstly,the paper briefly introduced the fundamental of the Vehicle Navigation System and its status quo and prospect domestic or abroad,described the author’s main work.Then,according to the requirements of this system,we designed the systematic solution.In accordance with the solution,we designed the hardware platform:the ARM9 (S3C2410A).Analyzed the peripheral circuits design,such as Power and Clock,SDRAM,Flash,Ethernet,TouchScreen,Serial Port,USB and Audio Interface.On the basis of the deep understanding of the embedded Linux system, we introduced the details of u-boot,device drivers and kernel.Besides,Embedded GUI is an important methord to realize the interface of human-computer interaction,this part of content is also included.The experiments states that Embedded Vehicle Navigation System has reached the demand of design,has values of application and popularization.更多还原