基于ARM的出租车智能车载系统的设计与实现

发布时间：2018-01-03 22:14

本文关键词：基于ARM的出租车智能车载系统的设计与实现　出处：《西安电子科技大学》2012年硕士论文　论文类型：学位论文

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【摘要】：本课题的研究是基于ARM9平台，利用嵌入式Linux操作系统强大的管理内核与外设的功能，在保留现有出租车功能的基础上，开发的集智能拼乘、卫星定位、无线通信、远程监控于一体的多功能的车载系统。文中分析了出租车车载系统的发展现状，，介绍了该车载系统的关键技术：GPS、GPRS、串口通信技术和嵌入式技术等。首先，对ARM微处理器及Linux操作系统进行了介绍；其次，详细阐述了GPS技术定位原理及GPRS网络结构和特点，并对GPRS的主要传输协议进行了说明。最后，介绍了串口通信技术在信息传递中的应用方向。根据车载系统的要求及实际的需要，对硬件平台各个器件及模块进行选择，提出了软、硬件电路的设计方案。详细介绍了Linux嵌入式操作系统的定制与移植，以及实现各主要功能的软件开发。并针对可拼乘计价模块的功能要求，对该模块的算法进行了研究。通过测试，GPS定位信息、计价器营运信息等数据保持通讯基本畅通，车载终端能够实现与控制中心的通信和数据交换功能，满足用户的基本需要。最后，文章对系统进行了总结和展望，提出了系统升级的方案。本系统经济实用，可广泛应用于其他车辆。
[Abstract]:This research is based on the ARM9 platform, with strong management core and peripheral embedded Linux operating system functions, while retaining the existing taxi function on the development of a set of smart fight multiply, satellite positioning, wireless communication, multi function remote monitoring in one vehicle system.
This paper analyzes the current development of taxi system, introduces the key technology of the vehicle system: GPS, GPRS, serial communication technology and embedded technology. Firstly, the ARM microprocessor and Linux operating system are introduced; secondly, elaborated GPS technology positioning principle and GPRS network structure and characteristics, and the main transmission protocols of GPRS are described. Finally, the application of serial communication technology in information transmission. According to the needs of the vehicle system and the actual requirements, the selection of hardware platform for the various devices and modules, proposed the software, hardware design scheme is introduced. The customization and transplantation of Linux embedded operating system well, the main function of the software development. And for the fight multiply denominated module, the module of the algorithm is studied.
Through the test, GPS positioning information, the meter operating information and other data to maintain basic communication smooth, vehicle terminal and control center can realize the communication and data exchange capabilities to meet the basic needs of the user. Finally, the paper summarizes and prospects of the system, put forward the system upgrade program. This system is economical and practical, can be widely applied to other vehicles.

【学位授予单位】：西安电子科技大学
【学位级别】：硕士
【学位授予年份】：2012
【分类号】：TP368.1

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