【作者】 巩大力；

【导师】 李子青；

【作者基本信息】 长安大学 ， 交通运输规划与管理， 2009， 博士

【摘要】 交通拥挤、事故频繁以及与之有关的能源和环境等问题严重地困扰着世界各国城市,影响着城市的可持续发展。实践证明智能交通系统(ITS)是解决城市交通问题的有效方法,包括我国交通学者在内的世界各国专家对城市交通问题进行了大量的分析和研究,并从多方面、多角度提出缓解城市交通问题的方案,认为综合交通监控系统(ISCS)是ITS关键的一环。本文基于导师主持的“十一五”国家科技攻关重大项目“基础交通信息采集与通信技术研究”和“关中地区城镇城市交通一体化研究”预研课题,围绕“城市智能交通监控系统关键技术研究”主题,对交通信息的获取、信息共享网络通信、交通信息获取与融合以及交通信息数据库管理等方面的关键技术进行了研究,主要工作及创新如下：1.对城市智能交通ISCS数据库管理策略及其共享机制开展研究,完成中间件技术、数据接口与标准技术、数据处理流程的设计,优化了UITIP数据存储方案,并进行交通信息有效性管理和数据集成研究。2.针对城市道路交通信息特性,基于CAN总线技术,进行交通信息采集与传输系统关键技术研究。完成CAN节点模块化设计,开发ISCS前端系统的接口应用层协议,包括数据格式、通信协议、容错协议、中断服务程序等,并通过实验验证其正确性和可靠性。3.基于IEEE1451智能接口标准技术进行ISCS信息网络平台研究,将传感器代理服务器(SAS)概念引入交通信息网络系统,对基于IPv6网络传感器的路由协议和TEDS设计等关键技术进行了研究。完成系统接口硬件设计以及面向对象的应用软件开发,完成实测实验和分析。4.进行交通信息融合与获取关键技术研究。完成扩展性与兼容性良好的交通信息特性与数据结构设计,提出了基于组合模型法、小波分解和神经网络相结合的检测算法,进行了数据仿真分析。城市交通问题是一个复杂性很高的世界性难题,需要从多方面综合解决,本文针对城市道路交通信息获取关键技术从多角度进行分析和研究,并以实验验证和数据仿真为基础,研究如何增强信息沟通以缓解城市交通问题,论文成果对相关研究和工程实施具有一定的理论和工程指导意义。更多还原

【Abstract】 The issues of traffic congestion, frequent accidents and others about energy, environment and so seriously troubles cities around the world, and affects their sustainable development. Practices around the world have proved that the intelligent transport system (ITS) is an effective way to solute urban traffic problems. Traffic experts and scholars around the world, including China, have make a great deal of analysis and research on urban transport issues, and strived to ease traffic problems in many aspects, and the Integrated Supervisory and Control System (ISCS) is a key to ITS Central.Based on the auspices of my instructor’s "11th Five-Year Plan" national scientific and technological projects, "the basis research of traffic information collection and communication technology" and " urban transport integration of Guanzhong area " pre-research topics, around the theme of " key information technology research to urban traffic ISCS", the key technology of traffic information obtain, information communication on net, information pick-up and amalgamation and data-base management is studied. The main works and innovations are summarized as follows:1. The urban traffic management strategy and information-sharing mechanisms of ISCS database, which includes the interspace piece, data standards and the flow of data processing is designed, data storage programs of UITIP is optimized, and the quality of traffic information management and data integration is researched.2. Based on CAN bus technology, the traffic information obtain technology is studied in allusion to urban traffic characteristics. Its hardware modular is designed, and the interface application layer protocol, which data format, communication protocols, error-disposal protocols, interrupt service routine (ISR) and so on, is developed. Experiments validated the effectiveness of those protocols.3. Based on IEEE 1451 standards technology, ISCS messaging platform is constructed. The concept of Sensor Agent Server (SAS) is introduced to intelligent traffic information collection systems, and the network of sensors is studied based on IPv6 routing protocols. The hardware modular design and object-oriented application are developed, and the experiment is completed and analyzed. 4. The key technology of information pick-up and amalgamation is studied. Based on expansion and compatible characteristics of traffic information, data structure is designed, and the arithmetic combined with modern signal processing, wavelet analyze and artificial neural network methods to extract heavy traffic information applications is bring forward, data simulated and analyzed.Urban Transport is a very complexity worldwide problem, many aspects are needed to ease or even resolve it. Based on experiments and empirical data, the key information technology of urban traffic ISCS is analyzed and studied in multi-aspects, the results of the study have a certain theoretical and engineering guidance sense to implementation of the project.更多还原