Research On Fundamental Information Platform Of Digital Subway

In 2004, the National Development and the Reform Committee Office published the notification about the organization and implement of the traffic modernization, and the digital construction of Urban Rail Transit has been put on agenda. As an important part of construction of Urban Rail Transit, the construction of Digital Subway has drawn extensive attention from all circles. Recently, many cities at home and abroad has already started to establish the digital subway system initially, but still have many problems: many subway business systems in independent application have been gradual perfecting, but their interactive performance and combined treatment ability are limited because of different business systems having different technology platform and application field; existing business systems have less technical support with sudden accidents treatment and personnel flow management transportation system. Aiming at the outstanding problems of the above and by taking various information in subway system and decision support schemes of kinds of accidents as the research object, the paper established the Fundamental Information Platform of Digital Subway based on J2EE frame and many other advanced technologies. It put forward a more complete corresponding solving scheme for unified treatment in Digital Subway information families of systems.According to the design purpose and investigation of subway operation system demand firstly, the paper put forward two design principles of the platform. Secondly according to the principles, the paper analyzed and designed the function in all subsystems in the platform and chose the technology theories which the platform used. And thirdly, the paper made further research on the technology theories such as Agent and MAS (Multi Agent System), Component GIS (Geographic Information System), Oracle Spatial and so on. Fourthly, the paper made an overall design of the intelligence in the platform and proposed two innovative points in subject: Intelligent Data Scheduling and Subway Information Expression on GIS. Finally, the paper carried on the forecast to the platform utilization prospect and proposed future research direction of the digital subway. Taking a wide view of the platform, J2EE frame provides support to enhance the comprehensiveness of information management; Client/Server & Browse/Server architecture mode helps to increase the timeliness of event handling; Agent and MAS technology has a vital role to improve the intelligence of overall operation; also component GIS completes the interaction with the user. With various technical means, the paper sets up a comprehensive, high-efficient and intelligent Fundamental Information Platform of Digital Subway, and makes a certain contribution to research on Digital Subway System.