Research And Simulation Of Automatic Train Supervision Host Server’s Key Functions Based On B/S Architecture

At present,the urban rail transit system is developing toward intelligent and integrated.The Automatic Train Supervision(ATS)system,as a signal monitoring system for urban rail transit,is the commander and supervisor of all trains.It should keep pace with the times and develop in a streamlined and intelligent direction.In the construction of the urban rail transit signal monitoring system,the technical solution using the cloud platform is one of the means to effectively solve the maintenance defects of the traditional C/S architecture technical program.In order to adapt to the construction of the signal monitoring system’ cloud platform,this thesis explores and researches the ATS system based on the B / S architecture.The main work is as follows:Firstly,this thesis studied the B/S architecture and development model,analyzed and determined the communication interface technical scheme under the B/S architecture,and studied the main functions and principles of the ATS host server.Secondly,the architecture of the ATS host server was designed and its functional requirements were analyzed.Based on the functional requirements,this thesis designed system arrangement,train identification and tracking,train route control,automatic train regulation and interface functions,designed the static and dynamic data of station devices and route,and the operation data of train.In order to realize the interface function,the interface between the ATS host server and the Web browser client and data server is designed in detail.In order to realize the function of automatic train regulation,the algorithm analysis and design of the generation of section operation time is carried out,and the section operation time was generated as the object of automatic regulation of train section operation.Then this thesis chooses Eclipse as the development platform,SSH(Struts2、Spring、Hibernate)as the system development framework,and Java as the main development language to realize the train identification and tracking,route control,train regulation and interface functions of the ATS host server.Among them,in order to realize the automatic train regulation function,an improved differential evolution algorithm is used on the Matlab platform to generate the minimum section operation time,and a method of section operation level division is proposed.Based on this division method,the section operation time corresponding to each section operation level is obtained,which is used as a part of the train operation plan data.Finally,the function simulation of the ATS host server is tested and verified.The interface test with the Web browser client and the device simulation server is completed.Based on the route control test case,the manual route control and automatic route control functions are verified by receiving the real-time data of station devices and route from device simulation server and the results meet functional requirements.Tested the automatic regulation function in train early scene and delay scene by receiving train real-time data from device simulation server,and the test results show that the ATS host server can restore the train to run on time within a period of time,achieving the expected goal.