关键词: 衔接道岔, 虚拟信号机, 场间联系, 照查电路

Abstract: By means of setting virtual shunting signal and referring to the relevant elements of setting shunting signal in interlocking in 6502 electric centralized circuit, the technical conditions of connecting switches between two independent yards in the station are realized by means of route selection, route locking, signal inspection, route unlocking and other technical methods of setting shunting signals. The connection between the two independent yards can realize the purpose of having the independent route in each yard, selecting a complete route and opening the corresponding shunting signal, which provides technical support for ensuring the safety operation of the two yards.

Key words: connecting switch, virtual signal, inter-yard connection, check circuits