智能交通系统车载终端及通讯研究

发布时间：2018-03-29 07:33

本文选题：嵌入式　切入点：GPS　出处：《河北工业大学》2014年硕士论文

【摘要】：当今社会拥堵的城市交通是大多数发达与发展中国家正面临的问题，应对的策略主要包括完善交通法规，合理规划城市道路等，而最直接、最高效的方法就是将车辆与道路结合，运用高科技技术规划行车路线，保证行驶安全等。如今的车载终端产品可以说是种类繁多，，它们相互竞争的核心则是车载系统的智能程度、硬件成本与软件功能。随着智能交通系统的服务要求逐步提高，因此研发一款功能完善，低成本高性能，开发周期短，易于维护升级的基于嵌入式的车载智能终端系统是很有必要的。 ARM与Android的结合媲美当年Intel与Windows的黄金组合，其充分利用ARM微处理器的高性能、低功耗、稳定性强、扩展丰富的特点，外加Android操作系统具有很好的兼容性、移植性、研发周期短、人机界面友好、系统维护、升级简单等优势，决定了本论文车载终端采用ARM+Android的方案。根据智能交通系统中车载终端系统的功能要求与应用领域，对嵌入式系统的硬软件等各项技术进行了详细的研究。在硬件方面，主要是主处理器S5PV210芯片外围USB、触摸屏等扩展电路的分析研究，以及GPS+3G通讯定位功能模块、CAN总线通讯模块、音频功放模块的电路设计及PCB布线设计。在操作系统与软件方面，主要研究了系统的移植与应用程序的开发。在软件方面，本论文在深入分析Android操作系统的系统架构基础上，搭建了Fedora14+arm-linux-4.5.1的交叉编译环境，成功的将Android系统的内核移植到S5PV210上，并主要开发了针对此平台的GPS、3G、USB等外部设备的硬件驱动程序。应用程序方面，则着重灵活运用Android开源代码的API接口函数完成了GoogleMaps结合GPS的导航程序、3G网络等程序。
[Abstract]:Urban traffic congestion in today's society is a problem facing most developed and developing countries. The strategies to deal with it mainly include perfecting traffic laws and regulations, rationally planning urban roads, and so on. The most efficient way is to combine the vehicle with the road, to use high-tech technology to plan the driving route, to ensure the safety of driving, etc. Nowadays, there are many kinds of vehicle terminal products. The core of their competition is the intelligence of the on-board system, the hardware cost and the software function. As the service requirements of the intelligent transportation system gradually increase, so the development of a complete function, low cost and high performance, short development period, It is necessary to maintain and upgrade the intelligent terminal system based on embedded system. The combination of ARM and Android is comparable to the gold combination of Intel and Windows in that year. It makes full use of the high performance, low power consumption, strong stability and rich expansibility of ARM microprocessors. Besides, the Android operating system has good compatibility, portability, and short R & D cycle. The advantages of friendly man-machine interface, simple system maintenance and upgrade determine the scheme of ARM Android for vehicle terminal in this paper. According to the functional requirements and application fields of the vehicle terminal system in the intelligent transportation system, the hardware and software of the embedded system are studied in detail. It is mainly about the analysis and research of the peripheral USBs and touch-screen circuits of the main processor S5PV210 chip, as well as the can bus communication module of GPS 3G communication location function module, the circuit design of audio power amplifier module and the PCB wiring design. This paper mainly studies the transplantation of the system and the development of the application program. In the software aspect, based on the deep analysis of the system architecture of the Android operating system, the cross-compiling environment of the Fedora14 arm-linux-4.5.1 is built, and the kernel of the Android system is successfully transplanted to the S5PV210. The hardware driver of external devices such as GPS-3GU USB for this platform is mainly developed. In the application program, the API interface function of Android open source code is used flexibly to complete the navigation program of GoogleMaps combined with GPS and so on.
【学位授予单位】：河北工业大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：U495;U463.6

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