【作者】 刘亮； 夏玮玮； 沈连丰；

【Author】 LIU Liang XIAWei-wei SHEN Lian-feng (National Mobile Communications Research Lab,Southeast University,Nanjing 210096,China)

【机构】 东南大学移动通信国家重点实验室；

【摘要】 针对车辆自组网的应用场景和功能要求,设计实现了一种嵌入式车载单元。该车载单元可获取车辆运行数据并对数据处理生成消息,利用改进型IEEE 802.11g模块将消息发送至其他车辆,实现车辆内和车辆间组网及信息交互,当紧急情况发生时,其能够实时产生紧急事件消息通知周边车辆,有效提高行驶安全性.本文在提出车载单元整体设计方案基础上,对其硬件结构和应用软件开发进行了详细说明,并给出了测试结果。更多还原

【Abstract】 An On-Board Unit(OBU) is designed and implemented on embedded platform responding to the application scenarios and functional requirements of Vehicle Ad Hoe Network(VANET).The designed OBU can acquire vehicle’s working data and generate message through the data process,then transmit the message to other vehicles using enhanced IEEE802.11 g module,which achieves both intravehicle and inter-vehicle networking as well as information exchange,Furthermore,when emergency occurs,it can generate emergency event messages for adjacent vehicles in real time,which efficiently promotes drive safety.Besides the proposed overall design approach of OBU,this paper elaborates the hardware structure and application software in detail,and gives some test results.更多还原