Design And Implementation Of Simulation System For High Speed Railway Ground Signal Equipment

In the high-speed rail ground signal equipment system,in order to test the function of the train control center,human resources are required to build a site and deploy a test environment;it is necessary to use the physical communication board software in the train control center simulation cabinet to realize the train control center and peripheral high-speed rail ground signals The equipment interacts with information;the environment where peripheral high-speed rail ground signal equipment needs to be deployed.Therefore,cost,manpower and material resources are wasted.In order to save costs,in order to speed up the testing of the functions of the train control center and provide convenience to the signal testers,it is necessary to design a high-speed rail ground signal equipment simulation system to improve test efficiency.This article first analyzes the functions of the simulated object(physical communication board software,trackside electronic unit,inter-station communication and scheduling concentration),gives the overall requirements,and analyzes the functions of the simulated object with use cases The simulation analysis of the interface between the control center and the peripheral high-speed rail ground signal equipment was carried out.Then,according to the demand analysis,the software architecture of the simulation system and the dynamic interaction process of the interface simulation between the train control center and the peripheral high-speed rail ground signal equipment are discussed,and the interface scheme for data communication and data processing through the shared memory and data distributor is ed.Finally,using object-oriented thinking,the detailed design and implementation of shared memory and data distributor data communication and data distributor data processing are discussed.Simultaneously,the trackside electronic unit interface simulation,inter-station communication interface simulation and scheduling centralized interface simulation are discussed.Detailed design and implementation.At present,the simulation system has entered the operation stage in the signal test department of Beijing Heli System Engineering Co.,Ltd.The communication between the train control center and the peripheral high-speed rail ground signal equipment has replaced the physical communication board software with the method of shared memory and data distributor,and the interface specification between the train control center and the peripheral high-speed rail ground signal equipment meets the reality The interface specification fully realizes the transplantation of physical communication boards.At the same time,the signal tester can quickly start the test operation on the PC,saving the space and cost required to build high-speed rail ground signal equipment,speeding up the test process,and improving the test efficiency.To accelerate the development of high-speed railway construction quality.