Simulation Of Train Control Center Applying Software Engineering And Expert System

As an important ground-equipment of Train Control System, Train Control Center (TCC) can produce controlling information for train to keep the train running safe. In this paper, TCC is researched and simulated to improve the commonality and reusability of TCC software and raise the efficiency and reliability of track circuit coding.About enhancing commonality and reusability of the software, component technology of software engineering is adopted. For TCC simulation system, this paper analyzes the demand, gives certain detailed functions and designs the system based on component technology. The system is divided into six independent components. Each component is described in detail, and reusable-design is accomplished, which has a great practical significance for avoiding repeating work, increasing research efficiency and enhancing the software quality.About track circuit coding, coding algorithm based on expert system is applied. Track circuit coding principles provided by Ministry of Railways are considered in detail, and coding rule base is built. Track circuit coding sequence produced from reasoning process according to rule base would be storage in coding case library, and then the case library would be extended. Thus, matched case can be searched from case library and outputted directly when the same condition occurs in the future. So complex coding process can be avoided, and coding efficiency would be improved.TCC simulation software is developed with the data of Beijing-Shanghai and Wuhan-Guangzhou High Speed Railway at last. Combined with test cases, the joint debugging is realized. Final simulation results verify commonality and reusability of TCC simulation software. Besides, the coding algorithm based on expert system is tested to be effective, ensuring the safety of the track circuit coding information.