Study On Satisfactory Optimization Of ITS Dispatch Management System And Adjusting Train Diagram

The paper mostly 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 in three hierarchies of basic theory, practical theory and actual application. The main contents obtained in this paper are as follows:The general situation of ITS dispatch management system, adjusting train diagram and the theory of satisfactory optimization are expatiated; The definitions of satisfactory solution, performance specification and satisfactory rate function are developed; The structure model of all kinds of satisfactory optimization problems are studied including one parameter -one criterion-one satisfactory rate function, one parameter -one criterion梞ulti-satisfactory rate function, multi-parameter -one criterion梠ne-satisfactory rate function, multi-parameter -one criterion梞ulti-satisfactory rate function, one-parameter -multi-criterion梠ne-satisfactory rate function multi-parameter-multi-criterion梠ne satisfactory rate function and multi-parameter -multi-criterion梞ulti-satisfactory rate function. The specialty of GA is summed.How to synthesize multi-parameter, multi-criterion, multi-satisfactory rate function is studied. That is, the problem is solved by defining a synthesis satisfactory rate function, using optimization method and relative entropy method. How to get the power value is discussed. And all methods for synthesis satisfactory rate function that is just used for some models of satisfactory optimization are summed.The satisfactory optimization principle of ITS dispatch management system is described. 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, the satisfactory optimization for public trafficdispatch management system-one of ITS dispatch management system is setup.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.Take adjusting train diagram in HA ERBIN an practical example, this builds the satisfactory optimization model and gets an satisfying result by using GA.Achievements of the research work are summarized in the end of the paper.Through further studying on satisfactory optimization and ITS dispatch management system, the work has contributed to solving the difficulties in ITS and improved the dispatch ability on railway to a certain extent, and is significant in theory and applications.This work is sponsored by the Natural Science Fund of China (No.79970046)...