一、问题的提出 轨道光带表示电路是6502电气集中电路的主要组成部分。它的作用是用来反映轨道电路区段是否空闲(轨道电路是否完整),区段的解锁或锁闭及道岔的开通方向。 由于受地理环境等诸多因素的影响,许多站场不得不采用交叉渡线方式来满足运营的要求。但交叉渡线在控制台上的光带显示存在着不足,如果两组双动道岔都因故失去 First, the issue put forward Orbital light indicates that the circuit is the main part of 6502 electrical concentration circuit. Its role is to reflect whether the track circuit section is free (track circuit is complete), the section of the unlock or lock and switch turn-on direction. Due to the influence of many factors such as the geographical environment, many stations have to adopt the crossover approach to meet operational requirements. However, cross-line light in the console display there is not enough, if the two groups of double-action turnout are lost for any reason