Research And Design Of Computer Interlocking Simulation System For Railway Stations

The railway station signal safety control system is an important part of China's railway technology system and equipment modernization,and is the core equipment to ensure safe,reliable and efficient operation of trains.With the development of China's railways in the direction of "high speed,high density,heavy load,information and intelligence",new higher technical requirements are proposed for the central nervous system-computer interlocking system to ensure the safe operation of railway trains.At the same time of the rapid development of China's railway transportation,due to the expansion of the scale of operation of the line,a large number of railway dedicated lines and factories and mines have been put into operation,and the shortage of qualified station signal operators has become increasingly prominent.As far as the current situation of train operators in China's railways is concerned,it has not yet formed a relatively complete,scientific and advanced training system and means,which is difficult to meet the huge demand for railway transportation development.In this context,according to the research and design process of the security system,this paper studies and systems the security key technologies of the station computer interlocking simulation system from the aspects of system requirements analysis,structural design,detailed design and simulation test.analysis.Based on the principle of station signal relay interlocking control,this paper adopts C++ object-oriented programming language and security software testing technology to construct the architecture of the railway station computer interlocking simulation system,interlocking logic,and operation simulation and function.The test and other processes were integrated and integrated,and the functional requirements,performance requirements and interface requirements of the simulation system were analyzed in detail.Through the overall structural design of the station computer interlocking simulation system,the functional structure model of the system was established and the module of the system was realized.Based on the safety and reliability engineering,the safety design strategy of the simulation system is qualitatively analyzed.Based on the station-type data structure,the equipment data,the static and dynamic data structure of the simulation system are designed.Based on the object-oriented programming method,the algorithm design of each functional module of the simulation system is realized,and the technical standard of the computer interlocking of the railway station is compared.The functional test case of the simulation system is designed and the functional test is completed.The results show that the simulation system can completely simulate the functions of station interlocking various operation experiments,station signal operation,and basic equipment fault state simulation in the railway station signal control process.It can be used for both theoretical intensive teaching and scientific verification.It can realize the combination of"experimental" and "scientific research" to form a closed loop of command operation?interlocking logic operation execution command? status display.The fault simulation can be performed for each device,such as the loss of the track position,the failure of the track circuit,the broken wire of the signal machine,and the power failure of the track circuit.The results of the thesis provide a scientific engineering basis for the research,simulation verification and further development of the computer interlocking system,and also provide technical support for the functional verification before the engineering application of the computer interlocking system.In addition,the results of the thesis can also be extended according to the different needs of users,and used for teaching experiments and technical personnel training in railway institutions and enterprises.