【作者】 刘冬梅；

【导师】 刘小明； 荣建；

【作者基本信息】 北京工业大学 ， 交通运输规划与管理， 2004， 硕士

【摘要】 如同许多大型系统分析一样，智能交通系统（ITS）作为一个涉及多领域、多部门的复杂大系统，其构架分析也需要一定的理论方法作指导，以保证ITS内容完整、逻辑清晰、结构紧密，为地方ITS规划、ITS标准制定、具体系统设计等提供基础。鉴于上述意义及目前开发存在的问题，本论文从ITS体系框架开发指导方法、开发步骤及关键点等方面进行研究，并探讨设计结构矩阵在物理系统元素模块化中的应用。针对指导体系框架开发的面向过程和面向对象两种方法，结合软件工程相关知识，本论文就两者在ITS逻辑框架功能分解、物理框架系统模块化等方面的应用特点进行具体分析，认为由不同的体系框架开发指导方法得到的ITS体系框架在本质上差异不大，因此选择体系框架开发指导方法时可结合本论文中所列两种方法特点、已有基础、开发人员知识背景等因素来确定。本论文针对体系框架开发步骤及关键点进行分析，包括ITS体系框架内容的确定、终端确定原则、构建逻辑框架需遵循的原则、逻辑框架到物理框架的转化需遵循的原则、物理框架流分析等内容。其中，针对我国ITS体系框架第二版提出的ITS应用系统，论文对其进行深入分析，认为应用系统作为与用户服务直接相关的元素，使得体系框架在构成上形成闭循环，因此可在体系框架中增加应用系统，使其内容臻于完善；论文认为在逻辑框架到物理框架转化时，应针对实现同一逻辑功能的不同实现方式进行比较评价，为ITS系统模块化提供支持，并就此问题给出了初步解决方案。最后，论文明确了ITS体系框架开发步骤，并以交通信息服务领域为例进行体系框架开发。物理系统模块化是对逻辑功能元素按照一定原则进行组合的过程，本论文引入设计结构矩阵，量化ITS逻辑功能元素关系并进行建模，通过矩阵分析、计算，得到分层的逻辑功能元素，并判断其核心功能，可得到初步的物理系统模块。实例证明，设计结构矩阵可辅助用于物理系统模块化构建。更多还原

【Abstract】 As many complicated systems analysis, intelligent transport systems (ITS) whichcut across many technology areas and departments, need some theories and methodsin guiding the development of ITS architecture, to ensure the architecture to begeneral, logical, and strict, and so it can guide regional ITS planning, and ITSstandards setting and systems design. So author will discuss guidelines and keyquestions for ITS architecture development, and make a research on the application ofdesign structure matrix (DSM) in forming physical elements. To two architecture development methods: process-oriented method and object-oriented method, this paper analyses them used in ITS logical function decompositionand physical system elements combination, then concludes that the different methodsmake little effect on ITS architecture, so choice of development method can be basedon the two methods characters which listed in this paper, and architecturedevelopment workers’ knowledge background and so on. On the proceeding of ITS architecture development, this paper pays attention tosome key questions, including the constitutes of ITS architecture, the principles ofconfining ITS terminals, the rules of developing logical architecture, and physicalarchitecture flows. Thereinto, based on the new concept –applicable system whichgiven in the Chinese ITS architecture (Version 2.0), this paper analyses the applicablesystems’ effects in ITS architecture, and considers that the applicable system makesITS architecture more practically. When we transform logical architecture to physicalarchitecture, we should evaluate the different methods in realizing one logical element,by this way to support combining physical elements and this paper gives a solution tothis problem. At last, this paper gives the whole development processes explicitly. Asan example, the development on the Traffic Information Services is given. Physical modeling is a process of combining several logical elements based onsome rules to physical elements. This paper used DSM method in modeling logicalelements’ relationship, by analysis and calculation of DSM, we get hierarchicallogical elements and find out the kernel ones. By this method, we can get primaryphysical elements. It is proved by examples that DSM is assistant in physicalmodeling.更多还原