关键词: 联锁表, 信号平面布置图, ObjectARX, CAD二次开发

Abstract: This paper introduces a software based on ObjectARX, which can quickly draw the metro signal layout and automatically generate the interlocking table of metro main line, and provides the design algorithms of main function modules. The design idea of this software is to use ObjectARX development package to design a set of standard metro equipment element library on the CAD platform, and package various metro equipment elements into standard user-defined entity blocks. The software can effectively identify and calculate the attribute information and link relationship information of various equipment elements in the signal layout, so as to rapidly calculate the route interlocking information and automatically generate the interlocking table for metro main line. The compilation efficiency of interlocking table is greatly improved, and the error probability is greatly reduced.

Key words: interlocking table, signal layout, ObjectARX, secondary development by CAD