面向特定车辆的交通信号灯联网联控系统的设计与实现

发布时间：2019-03-13 09:56

【摘要】：城市交通是城市最基本的功能之一,在城市交通繁荣发展的同时,也涌现一大批有着特殊出行需求的车辆。它们肩负着特殊的使命,执行艰巨的任务,拥有较高的通行优先级。然而传统的城市交通控制系统,虽然在城市交通中已经发挥重要作用,但是不支持对车辆的区分,没有有效的保障这类特定车辆的出行机制。这些车辆往往受限于现有的道路和交通条件,阻滞于途中,大大延误了车辆到达现场的时机,对城市的健康发展不利。本文基于现有的交通系统,提出了面向特定车辆的出行联网联控策略,同时兼顾了社会车辆。充分考虑了特定车辆的出行特点,结合实时的交通状态,在特定车辆方向上形成通行绿波带,保障特定车辆的顺利出行,同时对通行受阻的社会车辆进行及时的疏散,恢复道路畅通。全文首先介绍了研究背景和论文工作以及相关技术,针对特定车辆出行的交通场景,明确了系统的运行场景。从特定车辆和社会车辆两方面叙述交通控制需求,并进行了系统需求分解。根据需求分析,给出了系统的总体结构,将系统按照功能属性划分为不同的层级,并设计了服务流程和内外接口。在此基础上,设计了系统核心模块的类图,并进行了详细的模块方法关键流程设计,然后进一步完成了系统的设计和实现工作。最后进行了系统的功能测试和场景仿真验证,详细阐述了关键功能服务的测试用例。测试结果表明系统基本符合需求,仿真验证表明本文提出的交通控制方法有效。在论文的结尾,对本论文工作进行了总结,并进一步指出了未来的研究方向。
[Abstract]:Urban traffic is one of the most basic functions of the city. With the prosperity and development of urban traffic, a large number of vehicles with special travel needs have emerged. They carry a special mission, carry out difficult tasks, and have high priority of access. However, the traditional urban traffic control system, although it has played an important role in urban traffic, does not support the distinction of vehicles, and does not effectively guarantee the travel mechanism of such specific vehicles. These vehicles are often restricted by the existing road and traffic conditions, and are blocked on the way, which greatly delays the opportunity to arrive at the scene and is not conducive to the healthy development of the city. In this paper, based on the existing traffic system, a vehicle-oriented travel networking control strategy is proposed, which takes into account the social vehicles at the same time. Taking fully into account the travel characteristics of specific vehicles, combining with real-time traffic conditions, the green wave zone is formed in the direction of specific vehicles to ensure the smooth travel of specific vehicles, and at the same time to evacuate the blocked social vehicles in a timely manner. Restore access to the road. Firstly, this paper introduces the research background, the work of the thesis and the related technology, and clarifies the running scene of the system according to the traffic scene of the specific vehicle trip. The traffic control requirements are described from specific vehicles and social vehicles, and the system requirements are decomposed. According to the requirement analysis, the overall structure of the system is given, the system is divided into different levels according to the functional attributes, and the service flow and internal and external interfaces are designed. On this basis, the class diagram of the core module of the system is designed, and the key flow of the module method is designed in detail, then the design and implementation of the system are further completed. Finally, the function test and scene simulation of the system are carried out, and the test cases of key function services are described in detail. The test results show that the system basically meets the requirements, and the simulation results show that the proposed traffic control method is effective. At the end of the paper, the work of this paper is summarized, and the future research direction is further pointed out.
【学位授予单位】：北京邮电大学
【学位级别】：硕士
【学位授予年份】：2016
【分类号】：U491.51;TP311.52

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