The Signal Graphic Aided Design And The Automatic Generation And Calibration System Of Interlocking Relationship

With the rapid development of railway transportation and the remarkable improvement of computer technology,the informationization and intelligence of railway transportation management are improved step by step,so that the signal business of railway station is becoming more and more busy.As the basic data of railway station yard,Station signal plane layout and the interlocking relation table of station yard are related to all aspects of railway transportation business.The Station signal plane layout is an accurate description of the location,size,naming,relationship between each other,the division of track section and the scope of station yard,etc.It is the important data of station signal and circuit construction and the basis of producing interlocking relation table.The interlocking relation table lists the Amutually restrictive and interconnected relationship between the signal,the access route and the switch in the railway station yard according to certain conditions.It is the most basic guarantee to ensure the traffic safety.At present,although the traditional manual drawing of Station signal plane layout has been replaced by the use of CAD software,the generation of the station interlocking relation table is still manually compiled.For some small and medium-sized stations,it may not be difficult to manually compile the interlocking tables of stations,but for large stations,it is obviously not very realistic to use manual to write interlocking relation tables.First,it takes a lot of manpower and time to manual complete the interlocking table,and the reliability and efficiency of the interlocking table can not be guaranteed,and it needs to be corrected continuously.Secondly,in December 1992,our country promulgated TB/T1123-92 "Railway signal interlocking Diagram compiling principle" instead of the old principle.However,due to the different understanding of people's principles and habits of compilation,it is easy to cause data omission and errors.This will largely affect the operation of railway stations and the safety of traffic accidents.Moreover,in recent years,the application of railway computer has become more and more common and frequent.The interlocking data of station yard has become the basic data of railway application software system in computer,which makes the use of interlocking data more and more frequent and important.Combined with the research work of "Research and Development of Railway Train training system",this paper studies the method of computer-aided design of railway station signal plane layout and automatic generation of station interlocking relation table.Based on the analysis of the actual demand of railway station yard design,this paper designs an automatic generating system of station interlocking data with uniform equipment naming method,unified search and calculation method and reasonable and intuitive graphic and image operation method.First of all,through the analysis of the research status of railway station signal map and interlocking relation table at home and abroad,and the research of station yard equipment and facilities,according to the characteristics and shape of equipment and facilities and the application principle,The railway station equipment and facilities are simplified to the simple equipment drawing elements for use.Then based on the knowledge and theory of mathematical graph theory,the topological structure model of station yard graph is built by using the connection and restriction relationship between station equipments.Finally,through the research and analysis of railway signal interlocking principle and organization and management of railway information,as well as the comparative research of mature search algorithms in recent years,we design the most effective and reliable algorithm to generate interlocking chart data of stations.For the station yard and its equipment data generation,the XML file is used to manage,and the generated interlocking relational table data is directly exported to the SQL Server database,which can make the data management more intuitive and easier.Make it easier and easier for other railway computer applications to use interlocking data,In order to realize the data sharing,the system design idea and the algorithm implementation method presented in this paper can provide the reference basis for the actual system development and the subsequent research of the station signal diagram and the interlocking relationship.