ITS指挥系统的满意优化原则的理论及应用

Satisfactory optimization method is produced for some optimization problems, which have difficulties in seeking for optimal solution. H.A.Simon, the owner of Noble prize, first presented the satisfactory criterion, thatis,satisfactory solution should be sought for instead of optimal solution in solving the large scale of combinatorial optimization problem. From then on the idea of "satisfactory criterion" is applied widely in different fields.ITS is the focus of research in traffic and transportation. And the difficulties in the research of ITS dispatch management system is that how to solve the large scale of combinatorial optimization problem efficiently. At present the idea of "satisfactory optimization" is not applied with intention in the studies of ITS dispatch management system. And the principle and method of satisfactory optimization for ITS dispatch management system is not presented yet. The paper develops the theory of satisfactory optimization, builds the structure of satisfactory optimization in ITS and sets up the model of satisfactory optimization for adjusting train diagram on double-track railway.The main contents obtained in this paper are as follows:.lSatisfactory optimization method is developed in some aspects.The general situation of ITS dispatch management system，adjusting train diagram and the theory of satisfactory optimization are expatiated; Thedefinitions of satisfactory solution, performance specification and satisfactory rate function are developed; The expressing method of satisfactory solution sets is depicted; The model of all kinds of satisfactory optimization problems are studied; the speciality of GA is summed. And How to describe the synthesis satisfactory rate function in multi- parameter, multi-criterion, multi-satisfactory rate function is studied. And the synthesis satisfactory rate function that is just used for some models of satisfactory optimization is summed.lThe theory and method of the satisfactory optimization principle in ITS dispatch management system is developed. The satisfactory optimization principle in ITS dispatch management system is developed. And this paper explains that how to define the performance specification and satisfactory rate function in the ITS dispatch management system. Then the operating rules of satisfactory rate function are developed. To show how to build this model, one of ITS dispatch management system--the satisfactory optimization for public traffic dispatch management system is set up. Further, this paper analyses the characteristics of adjusting train diagram and the requirement of making the adjusting plan for passenger train and freight train. Accounting to the operation characteristics of train, constrains and object function in adjusting train diagram are described and performance specification and satisfactory rate function are defined. After setting the weight vector, we can get the satisfactory optimization model of adjusting train diagram now.l.The theory and method of the satisfactory optimization principle in ITS dispatch management system is applied in the pactice. Take adjusting train diagram in HA ERBIN an practical example, this paper builds the satisfactory optimization model and gets an satisfying result by using GA..

ITS指挥系统是交通运输实现智能化的核心之一。本项目提出了最大限度的合理匹配固定设赣胍贫璞傅穆舛鹊腎TS指挥系统的满意优化原则的新概念；建立了基于性能指标复合函数形式的满意度函数及组合运算原则。建立了基于满意优化原则的列车运行调度指挥系统的多目标优化数学模型；开发了适合大规模ITS调度指挥系统求解的遗传算法。