Study On The Engineering Application Of The Section Occupancy Logic Check Function

In recent years,the implementation of section occupancy logic check function project has been continuously promoted in the whole railway.In the process of implementation,the signal equipment failures that affect the normal use of signal equipment and interfere with the order of railway transportation occur frequently,which not only threatens the transportation safety,but also delays the implementation progress of the project.Interlocking test is an effective means to reduce interlocking relationship errors and prevent signal failure.In the process of railway signal engineering implementation,interlocking test is always used as an important means and measure to discover interlocking hidden danger,which can effectively guarantee the reliable and safe operation of signal system.Similarly,interlocking management is also very important in the implementation process of section occupancy logic check function.How to improve the accuracy of the test and reduce the fault in the process of the implementation of the logic check function project is a very important research topic in the current railway safety work.This paper mainly studies the test and the application case of the section occupancy logic check function.Firstly,the paper analyzes the relay logic check circuit,and summarizes the test items,methods and steps of the relay logic check circuit.Secondly,the paper analyzes the function of TCC section occupancy logic check,and summarizes the test items,methods and steps of CC section occupancy logic check function.Then,this paper analyzes the typical cases in the field implementation of section occupancy logic check function according to relay logic check and TCC section occupancy logic check,and summarizes the problems existing in typical cases,and gives the construction organization and project management methods to prevent and eliminate such failures in the implementation process of section occupancy logic check function.Finally,based on the summary of the whole paper,according to the current implementation of section occupancy logic check function,we put forward the prospect for the next step of engineering organization and the optimization of interlocking test.