车联网环境下交通信息服务协同关键技术研究

发布时间：2018-03-27 06:18

本文选题：交通信息服务　切入点：车联网　出处：《长安大学》2015年硕士论文

【摘要】：交通信息服务系统作为智能交通的一项重要应用,为缓解交通拥堵、改善交通质量、提高交通服务水平作出了重要的贡献。然而随着经济社会的快速发展,现有的交通信息服务机制不能满足社会公众对交通信息服务的需求,存在交通信息的综合处理能力较弱、智能化服务水平较低、交通信息服务方式单一等问题。近年来,车联网技术的研究及应用为交通信息服务的发展提供了新的思路,车联网环境能够为改善交通信息服务质量创造数据条件和基础平台,因此构建车联网环境下的新型交通信息服务体系成为当前的研究热点之一。基于上述背景,论文以车联网环境下的新型交通信息服务协同体系构建为目标,对车联网环境下交通信息服务协同关键技术展开研究。首先,论文在深入分析车联网的技术特征的基础上,针对交通信息服务的应用需求,提出了一种新型交通信息服务协同体系,包括交通信息服务模型描述、基于机会通信的服务发现协议、基于语义的交通信息服务匹配与服务动态组合三个部分;其次,在研究Web服务的语法与语义表达技术的基础上,对交通信息服务的描述方法进行分析,提出应用OWL-S语言建模来实现交通信息服务描述的语义化,并构建了一种基于OWL-S的交通信息服务描述模型;然后,在深入分析Web环境下服务发现技术的基础上,分析了交通信息服务发现的关键内容,并完成了交通信息服务发现协议的总体设计,重点研究了车联网环境下的服务请求数据分发过程,即建立机会路由来实现服务请求者与服务提供者之间的数据交换;最后,在对服务组合的方法进行研究的基础上,针对交通信息服务组合的特征,构建了一种基于语义匹配和工作流技术的交通信息服务组合框架,并在该框架下研究了交通信息服务组合的工作流程、服务组合模板的构建方法、原子服务的组合判定方法及交通信息服务的执行控制方法。论文提出的车联网环境下的交通信息服务协同体系能够有效提升交通信息服务的智能化和个性化水平,增强交通信息服务系统的综合处理能力,有助于提高交通信息服务系统的服务质量,保障交通运输的安全和高效运营。
[Abstract]:Traffic information service system, as an important application of intelligent transportation, has made important contributions to alleviate traffic congestion, improve traffic quality and improve traffic service level. However, with the rapid development of economy and society, The existing traffic information service mechanism can not meet the demand of the public for the traffic information service. There are some problems such as the weak comprehensive processing ability of traffic information, the low level of intelligent service, the single mode of traffic information service and so on. The research and application of vehicle networking technology provide a new way of thinking for the development of traffic information service. The vehicle networking environment can create data conditions and basic platform for improving the quality of traffic information service. Therefore, the construction of a new traffic information service system under the vehicle networking environment has become one of the current research hotspots. Based on the above background, the paper aims to build a new traffic information service collaborative system under the vehicle networking environment. The key technologies of traffic information service cooperation under the environment of vehicle networking are studied. Firstly, based on the in-depth analysis of the technical characteristics of vehicle networking, the paper aims at the application needs of traffic information service. A new traffic information service collaborative system is proposed, which includes three parts: traffic information service model description, service discovery protocol based on opportunity communication, semantic traffic information service matching and service dynamic composition. On the basis of studying the syntax and semantic expression technology of Web service, the description method of traffic information service is analyzed, and OWL-S language modeling is proposed to realize the semantic description of traffic information service. A description model of traffic information service based on OWL-S is constructed, and then the key content of traffic information service discovery is analyzed on the basis of deeply analyzing the technology of service discovery in Web environment. The overall design of the traffic information service discovery protocol is completed, and the process of service request data distribution under the environment of vehicle network is studied, which is to establish the opportunity route to realize the data exchange between the service requestor and the service provider. Based on the research of service composition method and the characteristics of traffic information service composition, a framework of traffic information service composition based on semantic matching and workflow technology is constructed. Under this framework, the workflow of traffic information service composition and the construction method of service composition template are studied. In this paper, the cooperative system of traffic information service under the environment of vehicle networking can effectively improve the intelligence and individuation level of the traffic information service, which is based on the combination and decision method of atomic service and the execution control method of traffic information service. Enhancing the comprehensive processing ability of the transportation information service system is helpful to improve the service quality of the traffic information service system and ensure the safe and efficient operation of the transportation.
【学位授予单位】：长安大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：U495

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