【作者】 臧选；

【导师】 夏应清；

【作者基本信息】 华中师范大学 ， 无线电物理， 2012， 硕士

【摘要】 多车道自由流电子不停车收费系统(ETC-MLFF)是基于现有的电子不停车收费系统提出的新型收费系统,主要特点是全自动收费、交易时间短、收费效率高、车辆无需减速、多目标处理能力,并能有效的节约用地以及节约管理成本。论文针对多车道自由流电子不停车收费系统中路侧单元(RSU)的应用提出设计方案以期望解决车辆在不同交通环境和复杂高速行驶状态下对车载单元(OBU)的交易中出现的漏交易、重复交易等一系列问题的发生。论文主要阐述了RSU在多车道白山流电子不停年收费系统中的硬件要求和软件流程,并对设备进行优化,使设备可以到达多车道自由流电子不停车收费系统在实际应用中的要求。本论文主要的研究内容是：一、设计系统框架和工作流程,符合项目各项要求,并选用处理性能更强的芯片,优化硬件处理能力；二、间隔同频RSU天线的通信区域来达到抗干扰能力,引入255s机制到系统的数据链路层和应用层来避免重复交易；三、对RSU主控制器和各通信接口进行程序设计。最后,进行封闭场地测试和实地场地测试,所得结果可以确定整套设备完全达到多车道自由流电子不停车收费系统的要求,可以解决车辆在跟车、并驰、跨道、变道、超车、停车等情况下不会发生漏交易、重复交易的问题。更多还原

【Abstract】 Multi-Lane Free-Flow Electronic Toll Collection (ETC-MLFF) system is the new type of ETC system which is designed to keep traffic flowing, achieving maximum throughput on the highway and helping to reduce traffic congestion for the whole city. The main feature of it is the automatic charging, short charging transaction time, high efficiency, speed, vehicle without the need for multiple targets processing capacity, and can effectively save area consumption and management cost.In order to solve a series of questions about how to solve the vehicle OBU transactions and leakage transactions in different traffic environments and complex high-speed driving conditions, the RSU application design about repeat transactions do not stop for multi-lane free flow electronic toll system is proposed. This article focuses on the RSU hardware requirements and software processes in the multi-lane free flow electronic toll collection system. The equipment to optimize the device can reach the requirements of the multi-lane free flow electronic parking system in the practical application.The main contents of this paper are:The first, the design framework and workflow, a project with the requirements, selection and processing of more powerful chips, optimize hardware processing capability.The second, the intervals with the frequency of the RSU antenna communication area achieve anti-jamming capability, the introduction of the255S mechanisms to the system data link layer and application layer to avoid duplication of transactions.The third, the RSU host controller and the communication interface of the program outline design.Finally, the results of equipment testing fully meet the requirements of multi-lane free flow electronic toll collection system. It can be used in the vehicle with the car, Moving Side by Side, cross-road, lane change, overtaking, parking and other conditions to avoid occur leakage transactions and repeat transactions.更多还原