The Research And Development Of Station Plan CAD Of Computerized Interlocking System

Computerized interlocking system can enhance the railway station travelling safety and improve the transportation ability of the station,it is the development direction of the railway signalling system.With the higher speed of the railway,the new stations and the existed stations will adopt the computerized interlocking system.The design of the station plan view is a necessary step of the implementation to the computerized interlocking system.The research trend of this dissertation is station plan Computer Aided Design,its aim is:Via designing the picture elements and setting the property of track,switch and semaphore machine of the station,then design the station plan by use of visual manner,so it provides original static datum to the interlocking table,at the same time we use the interlocking table that is automatically generated as the data enterance to the interlocking system.The main task of the dissertation includes three parts:the design and drawing of station plan picture elements, the automatic generation of the interlocking table,the generation of the plan view. The dissertation begins with the software design thinking,at the same time, it introduces the implementation method of drawing plan using picture elements, it also provide the realization method.Then the dissertation analyzes the structure of the interlock relation table,and it expatiates the principium and realization method of interlocking table' automatic generation.At last,the dissertation analyzes the structure relation between the CAD software and the computerized interlocking system,and it also expatiates the connection method via using the sample of route selection and route cancel.The software development involved in this dissertation is under the Microsoft Visual C++.NET environment.At present,the system is evaluated on the simulation test platform in lab environment.The results indicates that the station plan view is friendly and preferable interaction,and the software design has reached the expectation of research.