角色自律分散系统概念及体系结构  

Concept and Architecture of Role Autonomous Decentralized System

作　　者：谭永东[1] 钱清泉[1] 

机构地区：[1]西南交通大学电气工程学院,四川成都610031

出　　处：《中国铁道科学》2007年第1期99-105,共7页China Railway Science

基　　金：科技部创新基金资助项目(00C26225121336);中日合作研究基金资助项目(Q024131104010001);西南交通大学科学研究基金资助项目(2004A06)

摘　　要：从理论研究和应用研究等角度综述自律分散系统技术的国内外研究现状,归纳出系统潜在功能的自律表达应用模式。对自动化系统进行多层次抽象,明确了集中式、客户/服务器和自律分散结构的适应领域,明确了系统功能及其表达方式的时空关系。自动化系统的功能包括固定功能、人工进化功能、潜在功能和自我进化功能;系统功能表达方式的时空关系有时空不变、时间可变和时空可变3种。对系统潜在功能的自律(时空可变)表达模式进行提炼,定义角色自律分散系统的概念。提出角色域与数据域双重驱动的角色自律分散系统的体系结构,角色和数据通过角色域与数据域进行交互,角色自律控制器实现角色转换的协调,数据仲裁器确保分散环境中的数据一致性,角色/功能/对象调度器分别实现系统角色,功能和对象的调度与激活。将角色自律分散系统体系结构应用于铁路调度系统中,表明技术上是可行性的。From fundamental research and application point of view, an overview of autonomous decentralized system was given, induced a new application mode called the autonomous expression of system latent function. An abstraction of multi-level to the automation system was carried out, clarified the suitable application field of centralized, client/server and autonomous decentralized system architecture, and the relations between the function of system and its expression mode. The classification to the automation system function was carried through, which included the fixed function, the artificial evolution （unction, the latent function and the self-evolution function etc. The temporal and spatial relations to the system function expression mode was analyzed, obtained three kind of expression modes, such as the temporal and spatial invariable, the temporal variable and the temporal and spatial variable. The autonomy （temporal and spatial variable） expression mode of the system latent function was refined, and the concept of role autonomous decentralized system was defined. The role autonomous decentralized system architecture was proposed, which called the role field and data field dual driven architecture. The role and the data interacted through the role field and the data field. The role autonomous control processor coordinated the role transition, the data arbitrator guaranteed the data consistence in the decentralized environment, the role/function/object dispatcher realized the dispatching and the activation of role, function and object of system separately. The role autonomous decentralized system architecture has beed applied to railroad dispatching system, and proved to be technically feasible.

关 键 词：角色自律分散系统 角色域 数据域 角色自律控制器 数据仲裁器 铁路调度指挥系统 

分 类 号：U284.59[交通运输工程—交通信息工程及控制] TP303[交通运输工程—道路与铁道工程]