| Railway signal system refers to all systems that use technical means to ensure the safety of trains.Computer based interlocking system is an important railway signal system that controls the operation of the station’s basic signal equipments through interlocking software to ensure the safe and efficient operation of trains at the station.In software design,our country generally adopts the mode of combining general-purpose interlocking logic program with unique interlocking control data of station.Interlocking control data refer to all the static data files involved in the interlocking logic operation.It is mainly determined by the station signal layout plan.It is one of the important factors affecting the normal operation of the computer based interlocking system in the actual railway station.At present,although the compilation of interlocking control data is automated by computer-aided design(CAD)technology,it still requires a lot of manual operations,such as manual redrawing of station yards,manual input of equipment attributes and interlocking conditions,etc.For large stations,the workload is huge and error-prone,and there are deficiencies such as low efficiency and data accuracy that depends heavily on the technical level of the designer.Therefore,it is necessary to establish a set of auxiliary software that can quickly and efficiently compile interlocking control data with high automation and high versatility.This thesis studies the working principle and related technical specifications of the computer based interlocking system,combined with the existing computer based interlocking simulation system,uses C++ language to design and realize the computer based interlocking control data automatic generation software in the Visual Studio 2012 environment.As an important part of the computer based interlocking data generation system,the software uses text format control basic data as input to achieve high-quality and fast output of interlocking control data.It is of great significance to improve the efficiency and automation of interlocking control data compilation.After replacing the interlocking control data,the interlocking software can quickly adapt to the new station work,which helps to improve the versatility,adaptability and intelligence of the computer based interlocking system.The main work of this thesis as follows:1.Introduce the computer based interlocking system and the computer based interlocking data generation system,clarify the functional requirements of the automatic generation software for interlocking control data,and design the overall software architecture and software workflow.2.Perform a detailed analysis of the control basic data of the software input.Determine the specific content and format of the interlock control data of the software output according to the existing computer based interlocking simulation system and related technical specifications,and give a detailed description with examples.On the basis of mastering the input information and output requirements of the software,design the software data structure rationally.3.According to the overall software architecture design,detailed design of each functional module of the software for automatic generation of interlocking control data,realizes the analysis and verification of control basic data,automatic establishment of station yard topology model,automatic search of station routes,manual adjustment of necessary route data,query display and automatic output of interlocking control data.4.According to the software workflow,display the functions realized by the software for automatic generation of interlocking control data;use the software to automatically compile the interlocking control data of multiple railway stations and apply it to the existing computer based interlocking simulation system.The results show that the software for automatic generation of interlocking control data can output interlocking control data quickly and accurately,and has high automation,stability and versatility. |
