导　　师： 姜立标

学科专业： 080204

授予学位： 硕士

作　　者： ;

机构地区： 华南理工大学

摘　　要： 我国已经成为汽车生产和消费大国，由此带来的能源消耗、环境污染、安全及拥堵等问题日益突出，以汽车为节点、网络为基础，人、车、路、网协调发展的汽车移动物联网成为解决问题的关键。车联网的实施可以明显改善道路交通情况，可减少60/%的交通堵塞，提高近70/%的短途运输效率，使现有道路的通行能力提高2倍以上。本文从实际应用出发，运用GPS技术、CAN总线技术、GPRS//3G技术、上位机技术，进行汽车移动物联网通信平台的研究与设计。 论文首先阐述汽车移动物联网通信平台研究的背景和意义，在分析国内外车联网技术研究现状与发展趋势的基础上，给出车联网的定义以及系统架构、车联网各个模块的技术原理，确定了系统的总体设计方案。通过GPS和汽车内部传感器采集各种信息，经过CAN总线发送给车载终端，在车载终端处理之后使用GPRS//3G无线传输网络将数据传输到上位机监控中心，便于车辆的监控、管理、调度和远程故障诊断等。 论文完成车载终端的硬件选型与设计，进行GPS、GPRS、STM32芯片的电源管理系统、程序下载电路和TFT液晶显示等外围电路的设计，并且对车载终端进行软件设计，提取GPS经纬度和时间等有效数据，使车载终端接收与处理CAN总线的信息并且通过GPRS网络发送到上位机监控中心。论文进行CAN总线节点的硬件和软件设计，对微处理器、控制器和收发器进行芯片选型与电路设计，编写CAN总线的初始化函数、发送函数和接收函数，并且使用纯软件的方式实现CAN总线协议与RS232协议之间不限字节的数据转换。 论文设计车联网上位机监控中心，同时设计Android手机客户端应用程序，用户可以使用电脑和手机查看车辆的相关信息，进行管理与控制。最后对论文所设计的系统进行测试，并对测试结果进行分析。 As there are more and more productions and consumptions of automobiles in China,energy, environmental and safety issues have become increasingly prominent.Cars for node,taking the network as foundation, people, vehicles, road and nets coordinated development ofvehicular networking become the key of solving this issue. The implementation of vehiclenetworking can improve road conditions significantly, it can reduce60/%traffic jams, increasenearly70/%transport efficiency, and improve road capacity more than2times.The paperapplies GPS, CAN bus, GPRS//3G and computer technology, carries out the research anddesign of vehicular networking communication platform. The paper introduces the background and significance of research on vehicularnetworking, On the basis of analysis of the research status and trend of vehicle networkingtechnology, gives the definition and system architecture of vehicle networking, describes thetechnology principle of vehicle networking modules, formulate the program scheme. Variousinformations collected by GPS and automotive interior sensors are sent to vehicle terminal byCAN bus and then use GPRS//3G wireless transmission network to transfer data to PCmonitoring center after handled, it benefits to monitoring, management and schedulingvehicles. Firstly, the paper completes hardware selection and design of the vehicle terminal,conducts peripheral circuits design of GPS, GPRS, STM32chip, and designs software of theSTM32chip, extract latitude and longitude from GPS informations. Vehicle terminal receiveand process informations via CAN bus and sent to the monitoring center by GPRS network. Secondly, the paper completes software and hardware design of CAN bus node, choosesand designs circuit of microprocessor, controller and transceiver, writes CAN businitialization function, send and receive functions, and applies pure software way to achievenot limited bytes of data conversion between CAN bus protocol and RS232protocol. Thirdly, the paper designs the PC monitoring center, combined with Android mobilephone client, users can use computers and mobile phones to view vehicle informations,management and control vehicles. Finally, the test of system has been carried out, and analysis resultes.

关 键 词： 车联网 全球定位系统 总线 网络 监控中心

分 类 号： [TN929.5 U495]

领　　域： [电子电信] [电子电信] [交通运输工程] [交通运输工程]